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description Publicationkeyboard_double_arrow_right Other literature type 2013Publisher:OpenAlex Georges Aad; T. Abajyan; B. Abbott; J. Weingarten; M. P. Casado; A. A. Abdelalim; O. Abdinov; Goetz Gaycken; P. A. Delsart; M. Abolins; A. Ventura; Halina Abramowicz; Henso Abreu; B. S. Acharya; L. Adamczyk; A. Trzupek; T. N. Addy; J. Adelman; S. Guindon; P. Adragna; T. Adye; S. Aefsky; J. A. Aguilar–Saavedra; B. Stugu; J. Große-Knetter; S. P. Ahlen; F. Ahles; A. Ahmad; M. Ahsan; G. Aielli; T. P. A. Åkesson; S. Jézéquel; R. Lafaye; M. S. Alam; M. A. Alam; J. Albert; K. Jon-And; Martin Aleksa; S. Palestini; F. Alessandria; C. Alexa; G. Alexander; L. Adamczyk; C. Alexa; M. Alhroob; G. Alimonti; G. Alimonti; M. Paulini; B. M. M. Allbrooke; P. P. Allport; S. E. Allwood-Spiers; Dragos Velicanu; Francisco Alonso; R. Alon; A. Alonso; Francisco Alonso; A. Altheimer; Bárbara Álvarez González; Mariagrazia Alviggi; Y. Coadou; Christoph Amelung; V. V. Ammosov; Susana Patricia Amor dos Santos; A. Amorim; N. Amram; C. Anastopoulos; E. Hill; Nansi Andari; T. Andeen; C. F. Anders; G. Anders; K. J. Anderson; A. Andreazza; V. Andrei; P. Laurelli; X. S. Anduaga; A. Angerami; A. Ventura; A. Angerami; S. Tisserant; Alexey Anisenkov; N. Anjos; A. Annovi; A. Antonaki; Mario Antonelli; J. Antos̆; M. Aoki; M. Aoki; S. Aoun; L. Aperio Bella; R. Apolle; G. Arabidze; I. Aracena; Y. Arai; Jean-François Arguin; S. Arfaoui; Jean-François Arguin; S. Argyropoulos; E. Arık;A bstract Se realiza una búsqueda de nuevos fenómenos en eventos con un chorro de alta energía y gran momento transversal faltante utilizando datos de colisiones protón-protón a $ \sqrt{s}=7 $ TeV con el experimento ATLAS en el Gran Colisionador de Hadrones. Se exploran cuatro regiones cinemáticas utilizando un conjunto de datos correspondiente a una luminosidad integrada de 4.7 fb −1 . No se observa un exceso de eventos más allá de las expectativas de los procesos del Modelo Estándar, y se establecen límites en las grandes dimensiones adicionales y la producción de pares de partículas de materia oscura. A bstract A search for new phenomena in events with a high energy jet and large missing transverse momentum is performed using data from proton-proton collisions at $ \sqrt{s}=7 $ TeV with the ATLAS experiment at the Large Hadron Collider. Quatre régions cinématiques sont explorées à l'aide d'un ensemble de données correspondant à une luminosité intégrée de 4,7 fb −1 . Aucun excès d'événements au-delà des attentes des processus du modèle standard n'est observé, et des limites sont fixées pour les grandes dimensions supplémentaires et la production de paires de particules de matière noire. A bstract A search for new phenomena in events with a high-energy jet and large missing transverse momentum is performed using data from proton-proton collisions at $ \sqrt{s}=7 $ TeV with the ATLAS experiment at the Large Hadron Collider. Four kinematic regions are explored using a dataset corresponding to an integrated luminosity of 4.7 fb −1 . No excess of events beyond expectations from Standard Model processes is observed, and limits are set on large extra dimensions and the pair production of dark matter particles. ملخص يتم إجراء البحث عن ظواهر جديدة في الأحداث ذات النفاثة عالية الطاقة والزخم العرضي الكبير المفقود باستخدام بيانات من تصادمات البروتون والبروتون عند $\sqrt{s}=7 $ TeV مع تجربة أطلس في مصادم الهدرونات الكبير. يتم استكشاف أربع مناطق حركية باستخدام مجموعة بيانات تتوافق مع لمعان متكامل قدره 4.7 fb −1 . لم يتم ملاحظة أي زيادة في الأحداث تتجاوز التوقعات من عمليات النموذج القياسي، ويتم تعيين الحدود على أبعاد إضافية كبيرة وإنتاج زوج من جزيئات المادة المظلمة.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Other literature type 2016Publisher:OpenAlex Georges Aad; B. Abbott; J. Abdallah; O. Abdinov; Baptiste Abeloos; R. Aben; M. Abolins; O. S. AbouZeid; Halina Abramowicz; Henso Abreu; R. Abreu; Yiming Abulaiti; Bobby Samir Acharya; L. Adamczyk; D. L. Adams; J. Adelman; S. Adomeit; T. Adye; Tony Affolder; T. Agatonović-Jovin; J. Agricola; J. A. Aguilar-Saavedra; S. P. Ahlen; Faig Ahmadov; Giulio Aielli; H. Åkerstedt; T. P. A. Åkesson; A. V. Akimov; G. L. Alberghi; J. Albert; S. Albrand; María Josefina Alconada Verzini; M. Aleksa; C. Alexa; G. Alexander; Theodoros Alexopoulos; Muhammad Alhroob; G. Alimonti; John Alison; S. P. Alkire; Benedict Allbrooke; Brandon Allen; Phillip Allport; A. Aloisio; Andrea García Alonso; Francisco Alonso; C. Alpigiani; B. Alvarez Gonzalez; D. Álvarez Piqueras; Mariagrazia Alviggi; B. T. Amadio; K. Amako; Y. Amaral Coutinho; C. Amelung; D. Amidei; Susana Patricia Amor dos Santos; A. Amorim; S. Amoroso; N. Amram; G. Amundsen; C. Anastopoulos; L. S. Ancu; N. Andari; T. Andeen; C. F. Anders; G. Anders; J. K. Anders; K. J. Anderson; A. Andreazza; V. Andrei; S. Angelidakis; I. Angelozzi; P. Anger; A. Angerami; F. Anghinolfi; Alexey Anisenkov; N. Anjos; A. Annovi; M. Antonelli; A. Antonov; J. Antos; F. Anulli; Mayumi Aoki; G. Bella; G. Arabidze; Y. Arai; J. P. Araque; Ayana Tamu Arce; F. A. Arduh; Jean-François Arguin; S. Argyropoulos; M. Arık; Aaron James Armbruster; L. J. Armitage; O. Arnaez; H. Arnold; M. Arratia; O. Arslan; A. Artamonov;Les résultats d'une recherche de gluinos dans des états finaux avec un électron ou un muon isolé, des jets multiples et une grande quantité de mouvement transverse manquante à l'aide de données de collision proton-proton à une énergie de centre de masse de $ \sqrt{s}$ = 13 TeV sont présentés. L'ensemble de données utilisé a été enregistré en 2015 par l'expérience ATLAS au Grand collisionneur de hadrons et correspond à une luminosité intégrée de 3,2 fb$^{-1}$ . Six sélections de signal sont définies qui exploitent au mieux les caractéristiques du signal. Les données sont conformes aux attentes de fond du modèle standard dans les six sélections de signaux, et l'écart le plus important est un excès d'écart type de 2,1. Les résultats sont interprétés dans un modèle simplifié où les gluinos produits par paire se désintègrent via le chargino le plus léger en neutrino le plus léger. Dans ce modèle, les gluinos sont exclus jusqu'à des masses d'environ 1,6 TeV en fonction du spectre de masse du modèle simplifié, dépassant ainsi les limites des recherches précédentes. Se presentan los resultados de una búsqueda de gluinos en estados finales con un electrón o muón aislado, múltiples chorros y gran momento transversal faltante utilizando datos de colisión de protones a una energía del centro de masa de $\sqrt{s}$ = 13 TeV. El conjunto de datos utilizado fue registrado en 2015 por el experimento ATLAS en el Gran Colisionador de Hadrones y corresponde a una luminosidad integrada de 3,2 fb$^{-1}$. Se definen seis selecciones de señal que explotan mejor las características de la señal. Los datos concuerdan con la expectativa de fondo del Modelo Estándar en las seis selecciones de señal, y la desviación más grande es un exceso de desviación estándar de 2.1. Los resultados se interpretan en un modelo simplificado donde los gluinos producidos por pares se descomponen a través del chargino más ligero al neutralino más ligero. En este modelo, los gluinos se excluyen hasta masas de aproximadamente 1,6 TeV dependiendo del espectro de masas del modelo simplificado, superando así los límites de las búsquedas anteriores. The results of a search for gluinos in final states with an isolated electron or muon, multiple jets and large missing transverse momentum using proton--proton collision data at a centre-of-mass energy of $\sqrt{s}$ = 13 TeV are presented. The dataset used was recorded in 2015 by the ATLAS experiment at the Large Hadron Collider and corresponds to an integrated luminosity of 3.2 fb$^{-1}$. Six signal selections are defined that best exploit the signal characteristics. The data agree with the Standard Model background expectation in all six signal selections, and the largest deviation is a 2.1 standard deviation excess. The results are interpreted in a simplified model where pair-produced gluinos decay via the lightest chargino to the lightest neutralino. In this model, gluinos are excluded up to masses of approximately 1.6 TeV depending on the mass spectrum of the simplified model, thus surpassing the limits of previous searches. يتم عرض نتائج البحث عن الغلوينات في الحالات النهائية مع إلكترون أو ميون معزول، ونفاثات متعددة وزخم عرضي كبير مفقود باستخدام بيانات تصادم البروتون والبروتون في طاقة مركز الكتلة $\sqrt{s}$ = 13 TeV. تم تسجيل مجموعة البيانات المستخدمة في عام 2015 من قبل تجربة أطلس في مصادم الهادرونات الكبير وتتوافق مع لمعان متكامل قدره 3.2 مليار دولار^{-1 }$. يتم تحديد ستة اختيارات للإشارة تستغل خصائص الإشارة على أفضل وجه. تتفق البيانات مع توقعات خلفية النموذج القياسي في جميع اختيارات الإشارات الستة، وأكبر انحراف هو زيادة الانحراف المعياري 2.1. يتم تفسير النتائج في نموذج مبسط حيث تتحلل الغلوينات المنتجة للزوجين عبر أخف شاحن إلى أخف محايد. في هذا النموذج، يتم استبعاد الغلوينات حتى كتل تبلغ حوالي 1.6 تيرا إلكترون فولت اعتمادًا على الطيف الكتلي للنموذج المبسط، وبالتالي تجاوز حدود عمليات البحث السابقة.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Research , Preprint 2023Embargo end date: 01 Jan 2023 Denmark, United Kingdom, Italy, Czech Republic, China (People's Republic of), Italy, China (People's Republic of), Czech Republic, China (People's Republic of), FrancePublisher:Elsevier BV Funded by:NSERCNSERCG. Aad; B. Abbott; K. Abeling; N.J. Abicht; S.H. Abidi; A. Aboulhorma; H. Abramowicz; H. Abreu; Y. Abulaiti; A.C. Abusleme Hoffman; B.S. Acharya; C. Adam Bourdarios; L. Adamczyk; L. Adamek; S.V. Addepalli; M.J. Addison; J. Adelman; A. Adiguzel; T. Adye; A.A. Affolder; Y. Afik; M.N. Agaras; J. Agarwala; A. Aggarwal; C. Agheorghiesei; A. Ahmad; F. Ahmadov; W.S. Ahmed; S. Ahuja; X. Ai; G. Aielli; M. Ait Tamlihat; B. Aitbenchikh; I. Aizenberg; M. Akbiyik; T.P.A. Åkesson; A.V. Akimov; D. Akiyama; N.N. Akolkar; K. Al Khoury; G.L. Alberghi; J. Albert; P. Albicocco; G.L. Albouy; S. Alderweireldt; M. Aleksa; I.N. Aleksandrov; C. Alexa; T. Alexopoulos; A. Alfonsi; F. Alfonsi; M. Algren; M. Alhroob; B. Ali; H.M.J. Ali; S. Ali; S.W. Alibocus; M. Aliev; G. Alimonti; W. Alkakhi; C. Allaire; B.M.M. Allbrooke; J.F. Allen; C.A. Allendes Flores; P.P. Allport; A. Aloisio; F. Alonso; C. Alpigiani; M. Alvarez Estevez; A. Alvarez Fernandez; M.G. Alviggi; M. Aly; Y. Amaral Coutinho; A. Ambler; C. Amelung; M. Amerl; C.G. Ames; D. Amidei; S.P. Amor Dos Santos; K.R. Amos; V. Ananiev; C. Anastopoulos; T. Andeen; J.K. Anders; S.Y. Andrean; A. Andreazza; S. Angelidakis; A. Angerami; A.V. Anisenkov; A. Annovi; C. Antel; M.T. Anthony; E. Antipov; M. Antonelli; D.J.A. Antrim; F. Anulli; M. Aoki; T. Aoki; J.A. Aparisi Pozo; M.A. Aparo; L. Aperio Bella; C. Appelt; N. Aranzabal; C. Arcangeletti; A.T.H. Arce; E. Arena; J-F. Arguin; S. Argyropoulos; J.-H. Arling; A.J. Armbruster; O. Arnaez; H. Arnold; Z.P. Arrubarrena Tame; G. Artoni; H. Asada; K. Asai; S. Asai; N.A. Asbah; J. Assahsah; K. Assamagan; R. Astalos; S. Atashi; R.J. Atkin; M. Atkinson; N.B. Atlay; H. Atmani; P.A. Atmasiddha; K. Augsten; S. Auricchio; A.D. Auriol; V.A. Austrup; G. Avolio; K. Axiotis; G. Azuelos; D. Babal; H. Bachacou; K. Bachas; A. Bachiu; F. Backman; A. Badea; P. Bagnaia; M. Bahmani; A.J. Bailey; V.R. Bailey; J.T. Baines; L. Baines; C. Bakalis; O.K. Baker; E. Bakos; D. Bakshi Gupta; R. Balasubramanian; E.M. Baldin; P. Balek; E. Ballabene; F. Balli; L.M. Baltes; W.K. Balunas; J. Balz; E. Banas; M. Bandieramonte; A. Bandyopadhyay; S. Bansal; L. Barak; M. Barakat; E.L. Barberio; D. Barberis; M. Barbero; G. Barbour; K.N. Barends; T. Barillari; M-S. Barisits; T. Barklow; P. Baron; D.A. Baron Moreno; A. Baroncelli; G. Barone; A.J. Barr; J.D. Barr; L. Barranco Navarro; F. Barreiro; J. Barreiro Guimarães da Costa; U. Barron; M.G. Barros Teixeira; S. Barsov; F. Bartels; R. Bartoldus; A.E. Barton; P. Bartos; A. Basan; M. Baselga; A. Bassalat; M.J. Basso; C.R. Basson; R.L. Bates; S. Batlamous; J.R. Batley; B. Batool; M. Battaglia; D. Battulga; M. Bauce;doi: 10.1016/j.physletb.2023.138154 , 10.3204/pubdb-2024-05205 , 10.48550/arxiv.2303.10090 , 10.3204/pubdb-2023-04962
arXiv: 2303.10090
handle: 2108/342143 , 11582/340795
doi: 10.1016/j.physletb.2023.138154 , 10.3204/pubdb-2024-05205 , 10.48550/arxiv.2303.10090 , 10.3204/pubdb-2023-04962
arXiv: 2303.10090
handle: 2108/342143 , 11582/340795
Parton energy loss in the quark-gluon plasma (QGP) is studied with a measurement of photon-tagged jet production in 1.7 nb$^{-1}$ of Pb+Pb data and 260 pb$^{-1}$ of $pp$ data, both at $\sqrt{s_\mathrm{NN}} = 5.02$ TeV, with the ATLAS detector. The process $pp \to \gamma$+jet+$X$ and its analogue in Pb+Pb collisions is measured in events containing an isolated photon with transverse momentum ($p_\mathrm{T}$) above $50$ GeV and reported as a function of jet $p_\mathrm{T}$. This selection results in a sample of jets with a steeply falling $p_\mathrm{T}$ distribution that are mostly initiated by the showering of quarks. The $pp$ and Pb+Pb measurements are used to report the nuclear modification factor, $R_\mathrm{AA}$, and the fractional energy loss, $S_\mathrm{loss}$, for photon-tagged jets. In addition, the results are compared with the analogous ones for inclusive jets, which have a significantly smaller quark-initiated fraction. The $R_\mathrm{AA}$ and $S_\mathrm{loss}$ values are found to be significantly different between those for photon-tagged jets and inclusive jets, demonstrating that energy loss in the QGP is sensitive to the colour-charge of the initiating parton. The results are also compared with a variety of theoretical models of colour-charge-dependent energy loss. Physics letters / B 846, 138154 - (2023). doi:10.1016/j.physletb.2023.138154 Published by North-Holland Publ., Amsterdam
Archivio della Ricer... arrow_drop_down Archivio della Ricerca - Università di Roma Tor vergataArticle . 2023Full-Text: https://hdl.handle.net/2108/342143Data sources: Bielefeld Academic Search Engine (BASE)Queen Mary University of London: Queen Mary Research Online (QMRO)Article . 2023License: CC BYData sources: Bielefeld Academic Search Engine (BASE)Recolector de Ciencia Abierta, RECOLECTAArticle . 2023Data sources: Recolector de Ciencia Abierta, RECOLECTARepository of the Czech Academy of SciencesArticle . 2023Data sources: Repository of the Czech Academy of SciencesUniversity of Copenhagen: ResearchArticle . 2023Data sources: Bielefeld Academic Search Engine (BASE)Fondazione Bruno Kessler: CINECA IRISArticle . 2023Data sources: Bielefeld Academic Search Engine (BASE)Archive de l'Observatoire de Paris (HAL)Article . 2023Data sources: Bielefeld Academic Search Engine (BASE)Université Savoie Mont Blanc: HALArticle . 2023Data sources: Bielefeld Academic Search Engine (BASE)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.euAccess RoutesGreen gold 3 citations 3 popularity Average influence Top 10% impulse Average Powered by BIP!
more_vert Archivio della Ricer... arrow_drop_down Archivio della Ricerca - Università di Roma Tor vergataArticle . 2023Full-Text: https://hdl.handle.net/2108/342143Data sources: Bielefeld Academic Search Engine (BASE)Queen Mary University of London: Queen Mary Research Online (QMRO)Article . 2023License: CC BYData sources: Bielefeld Academic Search Engine (BASE)Recolector de Ciencia Abierta, RECOLECTAArticle . 2023Data sources: Recolector de Ciencia Abierta, RECOLECTARepository of the Czech Academy of SciencesArticle . 2023Data sources: Repository of the Czech Academy of SciencesUniversity of Copenhagen: ResearchArticle . 2023Data sources: Bielefeld Academic Search Engine (BASE)Fondazione Bruno Kessler: CINECA IRISArticle . 2023Data sources: Bielefeld Academic Search Engine (BASE)Archive de l'Observatoire de Paris (HAL)Article . 2023Data sources: Bielefeld Academic Search Engine (BASE)Université Savoie Mont Blanc: HALArticle . 2023Data sources: Bielefeld Academic Search Engine (BASE)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Research , Preprint 2023Embargo end date: 01 Jan 2022 France, Chile, Czech Republic, France, Australia, United Kingdom, Denmark, China (People's Republic of), Australia, France, Czech Republic, China (People's Republic of), United Kingdom, United Kingdom, France, France, South Africa, Italy, South Africa, France, Norway, China (People's Republic of), Italy, South Africa, South Africa, ItalyPublisher:Springer Science and Business Media LLC Funded by:NSERCNSERCAad, Georges; Abbott, Braden Keim; Abbott, D. C.; Abeling, Kira; Abidi, Haider; Aboulhorma, Asmaa; Abramowicz, Halina; Abreu, Henso; Abulaiti, Yiming; Abusleme Hoffman, A. C.; Acharya, Bobby Samir; Achkar, Baida; Adam, Lennart; Adam Bourdarios, Claire; Adamczyk, Leszek; Adamek, Lukas; Addepalli, Sagar; Adelman, Jahred; Adiguzel, Aytul; Adorni Braccesi Chiassi, Sofia; Adye, Tim; Affolder, Tony; Affolder, A. A.; Afik, Yoav; Agaras, Merve Nazlim; Agarwala, Jinky; Aggarwal, Anamika; Agheorghiesei, Catalin; Aguilar Saavedra, Juan Antonio; Ahmad, Ammara; Ahmadov, Faig; Ahmed, Waleed Syed; Ai, Xiaocong; Aielli, Giulio; Aizenberg, Iakov; Akbiyik, Melike; Åkesson, T. P. A.; Akimov, Andrei; Al Khoury, Konie; Alberghi, Gian Luigi; Albert, Justin; Albicocco, Pietro; Alconada Verzini, M. J.; Alderweireldt, Sara; Aleksa, Martin; Aleksandrov, I. N.; Alexa, Calin; Alexopoulos, Theodoros; Alfonsi, Alice; Alfonsi, Fabrizio; Alhroob, Muhammad; Ali, Babar; Ali, Shahzad; Aliev, Malik; Alimonti, Gianluca; Allaire, Corentin; Allbrooke, Benedict; Allport, Philip Patrick; Aloisio, Alberto; Alonso, Francisco; Alpigiani, Cristiano; Alunno Camelia, Elio; Alvarez Estevez, Manuel; Alviggi, Mariagrazia; Do Amaral Coutinho, Yara; Ambler, Alessandro; Amelung, Christoph; Ames, Christoph; Amidei, Dante; Amor Dos Santos, Susana Patricia; Amoroso, Simone; Amos, Kieran Robert; Amrouche, Cherifa Sabrina; Ananiev, Viktor; Anastopoulos, Christos; Andari, Nansi; Andeen, Timothy Robert; Anders, John Kenneth; Andrean, Stefio Yosse; Andreazza, Attilio; Angelidakis, Stylianos; Angerami, Aaron; Anisenkov, Alexey; Annovi, Alberto; Antel, Claire; Anthony, Matthew Thomas; Antipov, Egor; Antonelli, Mario; Antrim, Daniel Joseph; Anulli, Fabio; Aoki, Masato; Aparisi Pozo, Javier Alberto; Aparo, Marco; Aperio Bella, Ludovica; Appelt, Christian; Aranzabal Barrio, Nordin; Araujo Ferraz, Victor; Arcangeletti, Chiara; Arce, Ayana Tamu; Arena, Eloisa; Arguin, Jean-Francois; Argyropoulos, Spyros; Arling, Jan-Hendrik; Armbruster, Aaron James; Arnaez, Olivier; Arnold, Hannah; Arrubarrena Tame, Zulit Paola; Artoni, Giacomo; Asada, Haruka; Asai, Kanae; Asai, Shoji; Asbah, Nedaa Alexandra; Asimakopoulou, Eleni Myrto; Assahsah, Jihad; Assamagan, Ketevi Adikle; Astalos, Robert; Atkin, Ryan Justin; Atkinson, Markus Julian; Atlay, Naim Bora; Atmani, Hicham; Atmasiddha, Prachi; Augsten, Kamil; Auricchio, Silvia; Auriol, Adrien; Austrup, Volker Andreas; Avner, Gal; Avolio, Giuseppe; Axiotis, Konstantinos; Ayoub, Mohamad Kassem; Azuelos, Georges; Babal, Dominik; Bachacou, Henri; Bachas, Konstantinos; Bachiu, Alexander; Backman, Karl Filip; Badea, Anthony; Bagnaia, Paolo; Bahmani, Marzieh; Bailey, A. J.; Bailey, Virginia; Baines, J. T.; Bakalis, Christos; Baker, Keith; Bakker, Pepijn Johannes; Bakos, Evelin; Bakshi Gupta, Debottam; Balaji, Shyam; Balasubramanian, Rahul; Baldin, Evgenii; Balek, Petr; Ballabene, Eric; Balli, Fabrice; Baltes, Lisa Marie; Balunas, William Keaton; Balz, Johannes; Banas, Elzbieta; Bandieramonte, Marilena; Bandyopadhyay, Anjishnu; Bansal, Shubham; Barak, Liron; Barberio, Elisabetta; Barberis, Dario; Barbero, Marlon Benoit; Barbour, Gregory; Barends, Kevin Nicholas; Barillari, Teresa; Barisits, Martin; Barkeloo, Jason Tyler Colt; Barklow, Tim; Barnett, Michael; Baron, Petr; Baron Moreno, D. A.; Baroncelli, Toni; Baroncelli, A.; Barone, Gaetano; Barr, A. J.; Barranco Navarro, Laura; Barreiro Alonso, Fernando; Barreiro Guimaraes Da Costa, Joao; Barron, Uriel; Barros Teixeira, M. G.; Barsov, Sergey; Bartels, Falk; Bartoldus, Rainer; Barton, Adam Edward; Bartos, Pavol; Basalaev, Artem; Basan, Alexander; Baselga Bacardit, Marta; Bashta, Inna; Bassalat, Ahmed; Basso, Matthew Joseph; Basson, Candice Ruth; Bates, Richard; Batlamous, Souad; Batley, Richard; Batool, Binish; Battaglia, Marco; Bauce, Matteo; Bauer, Patrick;doi: 10.1140/epjc/s10052-023-11427-9 , 10.3204/pubdb-2023-03713 , 10.3204/pubdb-2023-03772 , 10.48550/arxiv.2204.13530
arXiv: 2204.13530
handle: 10500/30109 , 2108/327223 , 2440/139521 , 11582/339798 , 11250/3088912
doi: 10.1140/epjc/s10052-023-11427-9 , 10.3204/pubdb-2023-03713 , 10.3204/pubdb-2023-03772 , 10.48550/arxiv.2204.13530
arXiv: 2204.13530
handle: 10500/30109 , 2108/327223 , 2440/139521 , 11582/339798 , 11250/3088912
AbstractThis paper presents a measurement of b-jet production in Pb+Pb and pp collisions at $$\sqrt{s_{_\text {NN}}}=5.02$$ s NN = 5.02 TeV with the ATLAS detector at the LHC. The measurement uses 260 $$\text {pb}^{-1}$$ pb - 1 of pp collisions collected in 2017 and 1.4 $$\text {nb}^{-1}$$ nb - 1 of Pb+Pb collisions collected in 2018. In both collision systems, jets are reconstructed via the anti-$$k_{t}$$ k t algorithm. The b-jets are identified from a sample of jets containing muons from the semileptonic decay of b-quarks using template fits of the muon momentum relative to the jet axis. In pp collisions, b-jets are reconstructed for radius parameters $$R= 0.2$$ R = 0.2 and $$R= 0.4$$ R = 0.4 , and only $$R= 0.2$$ R = 0.2 jets are used in Pb+Pb collisions. For comparison, inclusive $$R= 0.2$$ R = 0.2 jets are also measured using 1.7 $$\text {nb}^{-1}$$ nb - 1 of Pb+Pb collisions collected in 2018 and the same pp collision data as the b-jet measurement. The nuclear modification factor, $$R_\text {AA}$$ R AA , is calculated for both b-jets and inclusive jets with $$R= 0.2$$ R = 0.2 over the transverse momentum range of 80–290 GeV. The nuclear modification factor for b-jets decreases from peripheral to central collisions. The ratio of the b-jet $$R_\text {AA}$$ R AA to inclusive jet $$R_\text {AA}$$ R AA is also presented and suggests that the $$R_\text {AA}$$ R AA for b-jets is larger than that for inclusive jets in central Pb+Pb collisions. The measurements are compared with theoretical calculations and suggest a role for mass and colour-charge effects in partonic energy loss in heavy-ion collisions.
Archivio Istituziona... arrow_drop_down Queen Mary University of London: Queen Mary Research Online (QMRO)Article . 2023License: CC BYData sources: Bielefeld Academic Search Engine (BASE)Archivio della Ricerca - Università di Roma Tor vergataArticle . 2023Full-Text: https://hdl.handle.net/2108/327223Data sources: Bielefeld Academic Search Engine (BASE)The University of Adelaide: Digital LibraryArticle . 2023License: CC BYFull-Text: https://hdl.handle.net/2440/139521Data sources: Bielefeld Academic Search Engine (BASE)University of Bergen: Bergen Open Research Archive (BORA-UiB)Article . 2023License: CC BYFull-Text: https://hdl.handle.net/11250/3088912Data sources: Bielefeld Academic Search Engine (BASE)European Physical Journal C: Particles and FieldsArticle . 2023 . Peer-reviewedLicense: CC BYData sources: CrossrefRecolector de Ciencia Abierta, RECOLECTAArticle . 2023Data sources: Recolector de Ciencia Abierta, RECOLECTARepository of the Czech Academy of SciencesArticle . 2023Data sources: Repository of the Czech Academy of SciencesUniversity of Copenhagen: ResearchArticle . 2023Data sources: Bielefeld Academic Search Engine (BASE)Lancaster University: Lancaster EprintsArticle . 2023Data sources: Bielefeld Academic Search Engine (BASE)Pontificia Universidad Católica de Chile: Repositorio UCArticle . 2023Data sources: Bielefeld Academic Search Engine (BASE)Archive de l'Observatoire de Paris (HAL)Article . 2023Data sources: Bielefeld Academic Search Engine (BASE)Fondazione Bruno Kessler: CINECA IRISArticle . 2023Data sources: Bielefeld Academic Search Engine (BASE)Université Savoie Mont Blanc: HALArticle . 2023Data sources: Bielefeld Academic Search Engine (BASE)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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more_vert Archivio Istituziona... arrow_drop_down Queen Mary University of London: Queen Mary Research Online (QMRO)Article . 2023License: CC BYData sources: Bielefeld Academic Search Engine (BASE)Archivio della Ricerca - Università di Roma Tor vergataArticle . 2023Full-Text: https://hdl.handle.net/2108/327223Data sources: Bielefeld Academic Search Engine (BASE)The University of Adelaide: Digital LibraryArticle . 2023License: CC BYFull-Text: https://hdl.handle.net/2440/139521Data sources: Bielefeld Academic Search Engine (BASE)University of Bergen: Bergen Open Research Archive (BORA-UiB)Article . 2023License: CC BYFull-Text: https://hdl.handle.net/11250/3088912Data sources: Bielefeld Academic Search Engine (BASE)European Physical Journal C: Particles and FieldsArticle . 2023 . Peer-reviewedLicense: CC BYData sources: CrossrefRecolector de Ciencia Abierta, RECOLECTAArticle . 2023Data sources: Recolector de Ciencia Abierta, RECOLECTARepository of the Czech Academy of SciencesArticle . 2023Data sources: Repository of the Czech Academy of SciencesUniversity of Copenhagen: ResearchArticle . 2023Data sources: Bielefeld Academic Search Engine (BASE)Lancaster University: Lancaster EprintsArticle . 2023Data sources: Bielefeld Academic Search Engine (BASE)Pontificia Universidad Católica de Chile: Repositorio UCArticle . 2023Data sources: Bielefeld Academic Search Engine (BASE)Archive de l'Observatoire de Paris (HAL)Article . 2023Data sources: Bielefeld Academic Search Engine (BASE)Fondazione Bruno Kessler: CINECA IRISArticle . 2023Data sources: Bielefeld Academic Search Engine (BASE)Université Savoie Mont Blanc: HALArticle . 2023Data sources: Bielefeld Academic Search Engine (BASE)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Other literature type 2015Publisher:OpenAlex Georges Aad; B. Abbott; J. Abdallah; O. Abdinov; R. Aben; M. Abolins; O. S. AbouZeid; Halina Abramowicz; Henso Abreu; R. Abreu; Yiming Abulaiti; B. S. Acharya; L. Adamczyk; T. Adams; J. Adelman; S. Adomeit; T. Adye; A. Affolder; T. Agatonović-Jovin; Juan Antonio Aguilar-Saavedra; S. P. Ahlen; Faig Ahmadov; Giulio Aielli; H. Åkerstedt; T. P. A. Åkesson; G. Akimoto; A. V. Akimov; Gian Luigi Alberghi; J. Albert; S. Albrand; M. J. Alconada Verzini; Martin Aleksa; I. N. Aleksandrov; C. Alexa; G. Alexander; Theodoros Alexopoulos; Muhammad Alhroob; G. Alimonti; L. Alio; John Alison; Steven Patrick Alkire; B. M. M. Allbrooke; Phillip Allport; A. Aloisio; A. Alonso; Francisco Alonso; Cristiano Alpigiani; A. Altheimer; Barbara Álvarez González; D. Álvarez Piqueras; M. G. Alviggi; Brian Thomas Amadio; K. Amako; Yara Amaral Coutinho; Christoph Amelung; D. Amidei; Susana Patricia Amor dos Santos; A. Amorim; Simone Amoroso; N. Amram; G. Amundsen; Christos Anastopoulos; L. S. Ancu; Nansi Andari; T. Andeen; C. F. Anders; G. Anders; John Kenneth Anders; K. J. Anderson; A. Andreazza; V. Andrei; Stylianos Angelidakis; I. Angelozzi; P. Anger; Aaron Angerami; F. Anghinolfi; Alexey Anisenkov; N. Anjos; A. Annovi; M. Antonelli; J. Antoš; F. Anulli; Masato Aoki; L. Aperio Bella; G. Arabidze; Y. Arai; J. P. Araque; Ayana Tamu Arce; Francisco Anuar Arduh; J-F. Arguin; Spyridon Argyropoulos; M. Arık; A. J. Armbruster; Olivier Arnaez; V. Arnal; Hannah Arnold; M. Arratia; O. Arslan; Alexander Artamonov;Les résultats d'une recherche de nouveaux phénomènes dans des événements avec une grande quantité de mouvement transverse manquante et un boson de Higgs se désintégrant en deux photons sont rapportés. Les données des collisions proton-proton à une énergie de centre de masse de 8 TeV et correspondant à une luminosité intégrée de $ 20.3\text{ }\ text {} {\mathrm{fb}}^{\ ensuremath {-}1}$ ont été collectées avec le détecteur ATLAS au LHC. Les données observées sont bien décrites par les arrière-plans attendus du modèle standard. Des limites supérieures sur la section transversale des événements avec un grand élan transversal manquant et un candidat boson de Higgs sont également placées. Les limites d'exclusion sont présentées pour les modèles de physique au-delà du modèle standard présentant des candidats de matière noire. Se informan los resultados de una búsqueda de nuevos fenómenos en eventos con gran momento transversal faltante y un bosón de Higgs en descomposición a dos fotones. Los datos de las colisiones protón-protón a una energía del centro de masa de 8 TeV y correspondientes a una luminosidad integrada de $ 20.3\text{ }\ text {} {\mathrm{fb}}^{\ ensuremath {-}1}$ se han recopilado con el detector ATLAS en el LHC. Los datos observados están bien descritos por los antecedentes del modelo estándar esperado. También se colocan límites superiores en la sección transversal de eventos con gran falta de impulso transversal y un candidato al bosón de Higgs. Los límites de exclusión se presentan para modelos de física más allá del modelo estándar con candidatos de materia oscura. Results of a search for new phenomena in events with large missing transverse momentum and a Higgs boson decaying to two photons are reported. Data from proton-proton collisions at a center-of-mass energy of 8 TeV and corresponding to an integrated luminosity of $20.3\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ have been collected with the ATLAS detector at the LHC. The observed data are well described by the expected standard model backgrounds. Upper limits on the cross section of events with large missing transverse momentum and a Higgs boson candidate are also placed. Exclusion limits are presented for models of physics beyond the standard model featuring dark-matter candidates. تم الإبلاغ عن نتائج البحث عن ظواهر جديدة في أحداث ذات زخم عرضي كبير مفقود وبوزون هيغز يتحلل إلى فوتونين. تم جمع البيانات من اصطدامات البروتون- البروتون عند طاقة مركز الكتلة البالغة 8 تيرا إلكترون فولت والمطابقة لمعان متكامل قدره 20.3 $\ text{}\ text {} {\ mathrm {fb }}^{\ ensuremath{-} 1 }$ باستخدام كاشف أطلس في مصادم الهدرونات الكبير. يتم وصف البيانات المرصودة بشكل جيد من خلال خلفيات النموذج القياسي المتوقعة. يتم أيضًا وضع حدود عليا على المقطع العرضي للأحداث ذات الزخم العرضي الكبير المفقود ومرشح بوزون هيغز. يتم تقديم حدود الاستبعاد لنماذج الفيزياء التي تتجاوز النموذج القياسي الذي يضم مرشحين للمادة المظلمة.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Research , Preprint 2023 FrancePublisher:Springer Science and Business Media LLC Funded by:NSERCNSERCAad, Georges; Abbott, Braden Keim; Abbott, D. C.; Abeling, Kira; Abidi, Haider; Aboulhorma, Asmaa; Abramowicz, Halina; Abreu, Henso; Abulaiti, Yiming; Abusleme Hoffman, A. C.; Acharya, Bobby Samir; Adam Bourdarios, Claire; Adamczyk, Leszek; Adamek, Lukas; Addepalli, Sagar; Adelman, Jahred; Adiguzel, Aytul; Adorni Braccesi Chiassi, Sofia; Adye, Tim; Affolder, Tony; Affolder, A. A.; Afik, Yoav; Agaras, Merve Nazlim; Agarwala, Jinky; Aggarwal, Anamika; Agheorghiesei, Catalin; Aguilar Saavedra, Juan Antonio; Ahmad, Ammara; Ahmadov, Faig; Ahmed, Waleed Syed; Ahuja, Sudha; Ai, Xiaocong; Aielli, Giulio; Ait Tamlihat, Malak; Aitbenchikh, Brahim; Aizenberg, Iakov; Akbiyik, Melike; Åkesson, T. P. A.; Akimov, Andrei; Al Khoury, Konie; Alberghi, Gian Luigi; Albert, Justin; Albicocco, Pietro; Alderweireldt, Sara; Aleksa, Martin; Aleksandrov, I. N.; Alexa, Calin; Alexopoulos, Theodoros; Alfonsi, Alice; Alfonsi, Fabrizio; Alhroob, Muhammad; Ali, Babar; Ali, Shahzad; Aliev, Malik; Alimonti, Gianluca; Alkakhi, Wael; Allaire, Corentin; Allbrooke, Benedict; Allendes Flores, Cristian Andres; Allport, Philip Patrick; Aloisio, Alberto; Alonso, Francisco; Alpigiani, Cristiano; Alvarez Estevez, Manuel; Alviggi, Mariagrazia; Aly, Mohamed; Do Amaral Coutinho, Yara; Ambler, Alessandro; Amelung, Christoph; Amerl, Maximilian; Ames, Christoph; Amidei, Dante; Amor Dos Santos, Susana Patricia; Amos, Kieran Robert; Ananiev, Viktor; Anastopoulos, Christos; Andeen, Timothy Robert; Anders, John Kenneth; Andrean, Stefio Yosse; Andreazza, Attilio; Angelidakis, Stylianos; Angerami, Aaron; Anisenkov, Alexey; Annovi, Alberto; Antel, Claire; Anthony, Matthew Thomas; Antipov, Egor; Antonelli, Mario; Antrim, Daniel Joseph; Anulli, Fabio; Aoki, Masato; Aoki, Takumi; Aparisi Pozo, Javier Alberto; Aparo, Marco; Aperio Bella, Ludovica; Appelt, Christian; Aranzabal Barrio, Nordin; Araujo Ferraz, Victor; Arcangeletti, Chiara; Arce, Ayana Tamu; Arena, Eloisa; Arguin, Jean-Francois; Argyropoulos, Spyros; Arling, Jan-Hendrik; Armbruster, Aaron James; Arnaez, Olivier; Arnold, Hannah; Arrubarrena Tame, Zulit Paola; Artoni, Giacomo; Asada, Haruka; Asai, Kanae; Asai, Shoji; Asbah, Nedaa Alexandra; Assahsah, Jihad; Assamagan, Ketevi Adikle; Astalos, Robert; Atkin, Ryan Justin; Atkinson, Markus Julian; Atlay, Naim Bora; Atmani, Hicham; Atmasiddha, Prachi; Augsten, Kamil; Auricchio, Silvia; Auriol, Adrien; Austrup, Volker Andreas; Avner, Gal; Avolio, Giuseppe; Axiotis, Konstantinos; Ayoub, Mohamad Kassem; Azuelos, Georges; Babal, Dominik; Bachacou, Henri; Bachas, Konstantinos; Bachiu, Alexander; Backman, Karl Filip; Badea, Anthony; Bagnaia, Paolo; Bahmani, Marzieh; Bailey, A. J.; Bailey, Virginia; Baines, J. T.; Bakalis, Christos; Baker, Keith; Bakker, Pepijn Johannes; Bakos, Evelin; Bakshi Gupta, Debottam; Balaji, Shyam; Balasubramanian, Rahul; Baldin, Evgenii; Balek, Petr; Ballabene, Eric; Balli, Fabrice; Baltes, Lisa Marie; Balunas, William Keaton; Balz, Johannes; Banas, Elzbieta; Bandieramonte, Marilena; Bandyopadhyay, Anjishnu; Bansal, Shubham; Barak, Liron; Barberio, Elisabetta; Barberis, Dario; Barbero, Marlon Benoit; Barbour, Gregory; Barends, Kevin Nicholas; Barillari, Teresa; Barisits, Martin; Barklow, Tim; Barnett, Michael; Baron, Petr; Baron Moreno, D. A.; Baroncelli, Toni; Baroncelli, A.; Barone, Gaetano; Barr, A. J.; Barranco Navarro, Laura; Barreiro Alonso, Fernando; Barreiro Guimaraes Da Costa, Joao; Barron, Uriel; Barros Teixeira, M. G.; Barsov, Sergey; Bartels, Falk; Bartoldus, Rainer; Barton, Adam Edward; Bartos, Pavol; Basalaev, Artem; Basan, Alexander; Baselga Bacardit, Marta; Bashta, Inna; Bassalat, Ahmed; Basso, Matthew Joseph; Basson, Candice Ruth; Bates, Richard; Batlamous, Souad; Batley, Richard; Batool, Binish; Battaglia, Marco; Battulga, Daariimaa; Bauce, Matteo; Bauer, Patrick;AbstractCross-sections for the production of a Z boson in association with two photons are measured in proton–proton collisions at a centre-of-mass energy of 13 TeV. The data used correspond to an integrated luminosity of 139 fb$$^{-1}$$ - 1 recorded by the ATLAS experiment during Run 2 of the LHC. The measurements use the electron and muon decay channels of the Z boson, and a fiducial phase-space region where the photons are not radiated from the leptons. The integrated $$Z(\rightarrow \ell \ell )\gamma \gamma $$ Z ( → ℓ ℓ ) γ γ cross-section is measured with a precision of 12% and differential cross-sections are measured as a function of six kinematic variables of the $$Z\gamma \gamma $$ Z γ γ system. The data are compared with predictions from MC event generators which are accurate to up to next-to-leading order in QCD. The cross-section measurements are used to set limits on the coupling strengths of dimension-8 operators in the framework of an effective field theory.
European Physical Jo... arrow_drop_down European Physical Journal C: Particles and FieldsArticle . 2023 . Peer-reviewedLicense: CC BYData sources: CrossrefArchive de l'Observatoire de Paris (HAL)Article . 2023Data sources: Bielefeld Academic Search Engine (BASE)Université Savoie Mont Blanc: HALArticle . 2023Data sources: Bielefeld Academic Search Engine (BASE)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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visibility 6visibility views 6 Powered bymore_vert European Physical Jo... arrow_drop_down European Physical Journal C: Particles and FieldsArticle . 2023 . Peer-reviewedLicense: CC BYData sources: CrossrefArchive de l'Observatoire de Paris (HAL)Article . 2023Data sources: Bielefeld Academic Search Engine (BASE)Université Savoie Mont Blanc: HALArticle . 2023Data sources: Bielefeld Academic Search Engine (BASE)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Other literature type , Article 2011 United StatesPublisher:OpenAlex Georges Aad; B. Abbott; J. Weingarten; A. A. Abdelalim; A. Abdesselam; O. Abdinov; P. A. Delsart; M. Abolins; Halina Abramowicz; Henso Abreu; E. Acerbi; B. S. Acharya; M. Ackers; A. Trzupek; T. N. Addy; J. Adelman; M. Aderholz; S. Guindon; P. Adragna; T. Adye; S. Aefsky; J. A. Aguilar–Saavedra; J. Große-Knetter; S. P. Ahlen; F. Ahles; Ashfaq Ahmad; M. Ahsan; G. Aielli; T. Akdoğan; T. P. A. Åkesson; S. Jézéquel; A. V. Akimov; M. S. Alam; M. A. Alam; K. Jon-And; Martin Aleksa; S. Palestini; M. Aleppo; F. Alessandria; C. Alexa; Alexander Tapper; L. Adamczyk; T. Alexopoulos; M. Alhroob; G. Alimonti; G. Alimonti; M. Paulini; M. Aliyev; P. P. Allport; S. E. Allwood-Spiers; Dragos Velicanu; Francisco Alonso; R. Alon; A. Alonso; J. Alonso; Kun Liu; B. R. Ko; P. Amaral; Christoph Amelung; V. V. Ammosov; A. Amorim; E. Ros; N. Amram; C. Anastopoulos; T. Andeen; C. F. Anders; K. J. Anderson; A. Andreazza; V. Andrei; P. Laurelli; X. S. Anduaga; A. Angerami; S. Tisserant; N. Anjos; A. Annovi; A. Antonaki; Mario Antonelli; S. Giagu; J. Antos̆; M. Aoki; S. Aoun; L. Aperio Bella; R. Apolle; G. Arabidze; I. Aracena; Y. Arai; Jean-François Arguin; J. P. Archambault; S. Arfaoui; Jean-François Arguin; E. Arık; M. Arik; Aaron James Armbruster; K. Arms; S.R. Armstrong; O. Arnaez; C. Arnault; A. Artamonov; G. Artoni; D. Arutinov;Une recherche d'événements diphotoniques avec une grande énergie transversale manquante est présentée. Les données ont été collectées avec le détecteur ATLAS dans des collisions proton-proton à √s=7 TeV au Grand collisionneur de hadrons du CERN et correspondent à une luminosité intégrée de 3,1 pb⁻¹. Aucun excès de tels événements n'est observé au-dessus de la prédiction de fond du modèle standard. Dans le contexte d'un modèle spécifique avec une dimension supplémentaire universelle avec un rayon de compactification R et des désintégrations induites par la gravité, les valeurs de 1/R<729 GeV sont exclues à 95% C. L., fournissant la limite la plus sensible sur ce modèle à ce jour. Se presenta una búsqueda de eventos de difotón con gran energía transversal faltante. Los datos se recogieron con el detector ATLAS en colisiones protón-protón a √s=7 TeV en el Gran Colisionador de Hadrones del CERN y corresponden a una luminosidad integrada de 3,1 pb-1. No se observa un exceso de tales eventos por encima de la predicción de fondo del modelo estándar. En el contexto de un modelo específico con una dimensión extra universal con radio de compactación R y desintegraciones inducidas por gravedad, se excluyen valores de 1/R<729 GeV al 95% C. L., proporcionando el límite más sensible en este modelo hasta la fecha. A search for diphoton events with large missing transverse energy is presented. The data were collected with the ATLAS detector in proton-proton collisions at √s=7 TeV at the CERN Large Hadron Collider and correspond to an integrated luminosity of 3.1 pb⁻¹. No excess of such events is observed above the standard model background prediction. In the context of a specific model with one universal extra dimension with compactification radius R and gravity-induced decays, values of 1/R<729 GeV are excluded at 95% C. L., providing the most sensitive limit on this model to date. يتم تقديم بحث عن أحداث diphoton ذات طاقة عرضية كبيرة مفقودة. تم جمع البيانات باستخدام كاشف أطلس في تصادمات البروتون والبروتون عند √s=7 TeV في مصادم الهدرونات الكبير CERN وتتوافق مع لمعان متكامل قدره 3.1 رطل¹. لم يتم ملاحظة أي زيادة في مثل هذه الأحداث فوق التنبؤ بخلفية النموذج القياسي. في سياق نموذج محدد ذو بعد إضافي عالمي واحد مع نصف قطر ضغط R وتحلل ناتج عن الجاذبية، يتم استبعاد قيم 1/R<729 GeV عند 95 ٪ CL، مما يوفر الحد الأكثر حساسية لهذا النموذج حتى الآن.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Other literature type 2014Publisher:OpenAlex Georges Aad; B. Abbott; J. Weingarten; M. P. Casado; O. Abdinov; Goetz Gaycken; P. A. Delsart; M. Abolins; Goetz Gaycken; Halina Abramowicz; Henso Abreu; Jos Vermeulen; Yiming Abulaiti; B. S. Acharya; L. Adamczyk; A. Trzupek; J. Adelman; S. Guindon; T. Adye; T. Agatonović-Jovin; J. A. Aguilar–Saavedra; B. Stugu; S. P. Ahlen; Faig Ahmadov; G. Aielli; H. Åkerstedt; T. P. A. Åkesson; S. Jézéquel; A. V. Akimov; Gian Luigi Alberghi; J. Albert; K. Jon-And; María Josefina Alconada Verzini; Martin Aleksa; S. Palestini; C. Alexa; G. Alexander; L. Adamczyk; T. Alexopoulos; M. Alhroob; G. Alimonti; L. Alio; A. Lister; B. M. M. Allbrooke; T. Adye; P. P. Allport; Francisco Alonso; A. Alonso; Francisco Alonso; Cristiano Alpigiani; A. Altheimer; Bárbara Álvarez González; Mariagrazia Alviggi; Y. Coadou; Yara Amaral Coutinho; Christoph Amelung; D. Amidei; Susana Patricia Amor dos Santos; A. Amorim; Simone Amoroso; N. Amram; A. Rozanov; C. Anastopoulos; E. Hill; Nansi Andari; T. Andeen; C. F. Anders; G. Anders; K. J. Anderson; A. Andreazza; V. Andrei; X. S. Anduaga; A. Angerami; N. Hod; A. Ventura; A. Angerami; S. Tisserant; Alexey Anisenkov; N. Anjos; A. Annovi; A. Antonaki; Mario Antonelli; J. Antos̆; M. Aoki; M. Aoki; L. Aperio Bella; R. Apolle; G. Arabidze; I. Aracena; Y. Arai; J. P. Araque; Jean-François Arguin; F. A. Arduh; Jean-François Arguin; S. Argyropoulos; M. Arik; Aaron James Armbruster; O. Arnaez; P. Pralavorio;Une recherche a été effectuée, en utilisant l'échantillon complet de données $ 20.3\text{ }\text {} {\mathrm{fb}}^{\ ensuremath {-}1}$ de 8 collisions proton-proton TeV collectées en 2012 avec le détecteur ATLAS du LHC, pour les photons provenant d'un sommet déplacé en raison de la désintégration d'une particule neutre à longue durée de vie en un photon et une particule invisible. L'analyse examine le diphoton et l'état final de la quantité de mouvement transverse manquant, et est donc la plus sensible à la production de paires de particules à longue durée de vie. La technique d'analyse exploite les capacités du calorimètre électromagnétique ATLAS pour effectuer des mesures précises de la direction de vol, ainsi que du temps de vol, des photons. Aucun excès n'est observé par rapport aux prédictions du modèle standard pour le contexte. Les limites d'exclusion sont définies dans le contexte des modèles de rupture de supersymétrie à médiation par jauge, le neutrino le plus léger étant la particule supersymétrique la plus proche et se décomposant en un photon et un gravitino avec une durée de vie comprise entre 250 ps et environ 100 ns. Se ha realizado una búsqueda, utilizando la muestra de datos completa de $ 20.3\text{ }\ text {} {\mathrm{fb}}^{\ ensuremath {-}1}$ de 8 colisiones protón-protón TeV recolectadas en 2012 con el detector ATLAS en el LHC, para fotones que se originan en un vértice desplazado debido a la descomposición de una partícula neutra de larga vida en un fotón y una partícula invisible. El análisis investiga el difotón más el estado final del momento transversal faltante y, por lo tanto, es más sensible a la producción de pares de partículas de larga vida. La técnica de análisis aprovecha las capacidades del calorímetro electromagnético ATLAS para realizar mediciones precisas de la dirección de vuelo, así como del tiempo de vuelo, de los fotones. No se observa exceso sobre las predicciones del Modelo Estándar para el fondo. Los límites de exclusión se establecen en el contexto de los modelos de ruptura de supersimetría mediados por gauge, siendo el neutralino más ligero la partícula supersimétrica más próxima a la más ligera y descomponiéndose en un fotón y gravitino con una vida útil en el rango de 250 ps a aproximadamente 100 ns. A search has been performed, using the full $20.3\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ data sample of 8 TeV proton-proton collisions collected in 2012 with the ATLAS detector at the LHC, for photons originating from a displaced vertex due to the decay of a neutral long-lived particle into a photon and an invisible particle. The analysis investigates the diphoton plus missing transverse momentum final state, and is therefore most sensitive to pair production of long-lived particles. The analysis technique exploits the capabilities of the ATLAS electromagnetic calorimeter to make precise measurements of the flight direction, as well as the time of flight, of photons. No excess is observed over the Standard Model predictions for background. Exclusion limits are set within the context of gauge mediated supersymmetry breaking models, with the lightest neutralino being the next-to-lightest supersymmetric particle and decaying into a photon and gravitino with a lifetime in the range from 250 ps to about 100 ns. تم إجراء بحث، باستخدام عينة بيانات كاملة بقيمة 20.3 دولارًا\text {}\ text {} {\ mathrm{fb }}^{\ ensuremath {-} 1}دولار من 8 اصطدامات بروتون- بروتون تيف تم جمعها في عام 2012 مع كاشف أطلس في مصادم الهادرونات الكبير، للفوتونات الناشئة من قمة متبدلة بسبب اضمحلال جسيم محايد طويل العمر إلى فوتون وجسيم غير مرئي. يبحث التحليل في الحالة النهائية للزخم المستعرض المفقود، وبالتالي فهو أكثر حساسية لإنتاج زوج من الجسيمات طويلة العمر. تستغل تقنية التحليل قدرات المسعر الكهرومغناطيسي أطلس لإجراء قياسات دقيقة لاتجاه الطيران، وكذلك وقت الطيران، للفوتونات. لم يلاحظ أي زيادة على تنبؤات النموذج القياسي للخلفية. يتم تعيين حدود الاستبعاد في سياق نماذج كسر التناظر الفائق بوساطة المقياس، مع كون المحايد الأخف وزنًا هو الجسيم الفائق التناظر التالي للأخف وزنًا ويتحلل إلى فوتون وجرافيتينو مع عمر يتراوح من 250 ps إلى حوالي 100 ns.
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description Publicationkeyboard_double_arrow_right Other literature type 2013Publisher:OpenAlex Georges Aad; T. Abajyan; B. Abbott; J. Weingarten; M. P. Casado; A. A. Abdelalim; O. Abdinov; Goetz Gaycken; P. A. Delsart; M. Abolins; A. Ventura; Halina Abramowicz; Henso Abreu; B. S. Acharya; L. Adamczyk; A. Trzupek; T. N. Addy; J. Adelman; S. Guindon; P. Adragna; T. Adye; S. Aefsky; J. A. Aguilar–Saavedra; B. Stugu; J. Große-Knetter; S. P. Ahlen; F. Ahles; A. Ahmad; M. Ahsan; G. Aielli; T. P. A. Åkesson; S. Jézéquel; R. Lafaye; M. S. Alam; M. A. Alam; J. Albert; K. Jon-And; Martin Aleksa; S. Palestini; F. Alessandria; C. Alexa; G. Alexander; L. Adamczyk; C. Alexa; M. Alhroob; G. Alimonti; G. Alimonti; M. Paulini; B. M. M. Allbrooke; P. P. Allport; S. E. Allwood-Spiers; Dragos Velicanu; Francisco Alonso; R. Alon; A. Alonso; Francisco Alonso; A. Altheimer; Bárbara Álvarez González; Mariagrazia Alviggi; Y. Coadou; Christoph Amelung; V. V. Ammosov; Susana Patricia Amor dos Santos; A. Amorim; N. Amram; C. Anastopoulos; E. Hill; Nansi Andari; T. Andeen; C. F. Anders; G. Anders; K. J. Anderson; A. Andreazza; V. Andrei; P. Laurelli; X. S. Anduaga; A. Angerami; A. Ventura; A. Angerami; S. Tisserant; Alexey Anisenkov; N. Anjos; A. Annovi; A. Antonaki; Mario Antonelli; J. Antos̆; M. Aoki; M. Aoki; S. Aoun; L. Aperio Bella; R. Apolle; G. Arabidze; I. Aracena; Y. Arai; Jean-François Arguin; S. Arfaoui; Jean-François Arguin; S. Argyropoulos; E. Arık;A bstract Se realiza una búsqueda de nuevos fenómenos en eventos con un chorro de alta energía y gran momento transversal faltante utilizando datos de colisiones protón-protón a $ \sqrt{s}=7 $ TeV con el experimento ATLAS en el Gran Colisionador de Hadrones. Se exploran cuatro regiones cinemáticas utilizando un conjunto de datos correspondiente a una luminosidad integrada de 4.7 fb −1 . No se observa un exceso de eventos más allá de las expectativas de los procesos del Modelo Estándar, y se establecen límites en las grandes dimensiones adicionales y la producción de pares de partículas de materia oscura. A bstract A search for new phenomena in events with a high energy jet and large missing transverse momentum is performed using data from proton-proton collisions at $ \sqrt{s}=7 $ TeV with the ATLAS experiment at the Large Hadron Collider. Quatre régions cinématiques sont explorées à l'aide d'un ensemble de données correspondant à une luminosité intégrée de 4,7 fb −1 . Aucun excès d'événements au-delà des attentes des processus du modèle standard n'est observé, et des limites sont fixées pour les grandes dimensions supplémentaires et la production de paires de particules de matière noire. A bstract A search for new phenomena in events with a high-energy jet and large missing transverse momentum is performed using data from proton-proton collisions at $ \sqrt{s}=7 $ TeV with the ATLAS experiment at the Large Hadron Collider. Four kinematic regions are explored using a dataset corresponding to an integrated luminosity of 4.7 fb −1 . No excess of events beyond expectations from Standard Model processes is observed, and limits are set on large extra dimensions and the pair production of dark matter particles. ملخص يتم إجراء البحث عن ظواهر جديدة في الأحداث ذات النفاثة عالية الطاقة والزخم العرضي الكبير المفقود باستخدام بيانات من تصادمات البروتون والبروتون عند $\sqrt{s}=7 $ TeV مع تجربة أطلس في مصادم الهدرونات الكبير. يتم استكشاف أربع مناطق حركية باستخدام مجموعة بيانات تتوافق مع لمعان متكامل قدره 4.7 fb −1 . لم يتم ملاحظة أي زيادة في الأحداث تتجاوز التوقعات من عمليات النموذج القياسي، ويتم تعيين الحدود على أبعاد إضافية كبيرة وإنتاج زوج من جزيئات المادة المظلمة.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Other literature type 2016Publisher:OpenAlex Georges Aad; B. Abbott; J. Abdallah; O. Abdinov; Baptiste Abeloos; R. Aben; M. Abolins; O. S. AbouZeid; Halina Abramowicz; Henso Abreu; R. Abreu; Yiming Abulaiti; Bobby Samir Acharya; L. Adamczyk; D. L. Adams; J. Adelman; S. Adomeit; T. Adye; Tony Affolder; T. Agatonović-Jovin; J. Agricola; J. A. Aguilar-Saavedra; S. P. Ahlen; Faig Ahmadov; Giulio Aielli; H. Åkerstedt; T. P. A. Åkesson; A. V. Akimov; G. L. Alberghi; J. Albert; S. Albrand; María Josefina Alconada Verzini; M. Aleksa; C. Alexa; G. Alexander; Theodoros Alexopoulos; Muhammad Alhroob; G. Alimonti; John Alison; S. P. Alkire; Benedict Allbrooke; Brandon Allen; Phillip Allport; A. Aloisio; Andrea García Alonso; Francisco Alonso; C. Alpigiani; B. Alvarez Gonzalez; D. Álvarez Piqueras; Mariagrazia Alviggi; B. T. Amadio; K. Amako; Y. Amaral Coutinho; C. Amelung; D. Amidei; Susana Patricia Amor dos Santos; A. Amorim; S. Amoroso; N. Amram; G. Amundsen; C. Anastopoulos; L. S. Ancu; N. Andari; T. Andeen; C. F. Anders; G. Anders; J. K. Anders; K. J. Anderson; A. Andreazza; V. Andrei; S. Angelidakis; I. Angelozzi; P. Anger; A. Angerami; F. Anghinolfi; Alexey Anisenkov; N. Anjos; A. Annovi; M. Antonelli; A. Antonov; J. Antos; F. Anulli; Mayumi Aoki; G. Bella; G. Arabidze; Y. Arai; J. P. Araque; Ayana Tamu Arce; F. A. Arduh; Jean-François Arguin; S. Argyropoulos; M. Arık; Aaron James Armbruster; L. J. Armitage; O. Arnaez; H. Arnold; M. Arratia; O. Arslan; A. Artamonov;Les résultats d'une recherche de gluinos dans des états finaux avec un électron ou un muon isolé, des jets multiples et une grande quantité de mouvement transverse manquante à l'aide de données de collision proton-proton à une énergie de centre de masse de $ \sqrt{s}$ = 13 TeV sont présentés. L'ensemble de données utilisé a été enregistré en 2015 par l'expérience ATLAS au Grand collisionneur de hadrons et correspond à une luminosité intégrée de 3,2 fb$^{-1}$ . Six sélections de signal sont définies qui exploitent au mieux les caractéristiques du signal. Les données sont conformes aux attentes de fond du modèle standard dans les six sélections de signaux, et l'écart le plus important est un excès d'écart type de 2,1. Les résultats sont interprétés dans un modèle simplifié où les gluinos produits par paire se désintègrent via le chargino le plus léger en neutrino le plus léger. Dans ce modèle, les gluinos sont exclus jusqu'à des masses d'environ 1,6 TeV en fonction du spectre de masse du modèle simplifié, dépassant ainsi les limites des recherches précédentes. Se presentan los resultados de una búsqueda de gluinos en estados finales con un electrón o muón aislado, múltiples chorros y gran momento transversal faltante utilizando datos de colisión de protones a una energía del centro de masa de $\sqrt{s}$ = 13 TeV. El conjunto de datos utilizado fue registrado en 2015 por el experimento ATLAS en el Gran Colisionador de Hadrones y corresponde a una luminosidad integrada de 3,2 fb$^{-1}$. Se definen seis selecciones de señal que explotan mejor las características de la señal. Los datos concuerdan con la expectativa de fondo del Modelo Estándar en las seis selecciones de señal, y la desviación más grande es un exceso de desviación estándar de 2.1. Los resultados se interpretan en un modelo simplificado donde los gluinos producidos por pares se descomponen a través del chargino más ligero al neutralino más ligero. En este modelo, los gluinos se excluyen hasta masas de aproximadamente 1,6 TeV dependiendo del espectro de masas del modelo simplificado, superando así los límites de las búsquedas anteriores. The results of a search for gluinos in final states with an isolated electron or muon, multiple jets and large missing transverse momentum using proton--proton collision data at a centre-of-mass energy of $\sqrt{s}$ = 13 TeV are presented. The dataset used was recorded in 2015 by the ATLAS experiment at the Large Hadron Collider and corresponds to an integrated luminosity of 3.2 fb$^{-1}$. Six signal selections are defined that best exploit the signal characteristics. The data agree with the Standard Model background expectation in all six signal selections, and the largest deviation is a 2.1 standard deviation excess. The results are interpreted in a simplified model where pair-produced gluinos decay via the lightest chargino to the lightest neutralino. In this model, gluinos are excluded up to masses of approximately 1.6 TeV depending on the mass spectrum of the simplified model, thus surpassing the limits of previous searches. يتم عرض نتائج البحث عن الغلوينات في الحالات النهائية مع إلكترون أو ميون معزول، ونفاثات متعددة وزخم عرضي كبير مفقود باستخدام بيانات تصادم البروتون والبروتون في طاقة مركز الكتلة $\sqrt{s}$ = 13 TeV. تم تسجيل مجموعة البيانات المستخدمة في عام 2015 من قبل تجربة أطلس في مصادم الهادرونات الكبير وتتوافق مع لمعان متكامل قدره 3.2 مليار دولار^{-1 }$. يتم تحديد ستة اختيارات للإشارة تستغل خصائص الإشارة على أفضل وجه. تتفق البيانات مع توقعات خلفية النموذج القياسي في جميع اختيارات الإشارات الستة، وأكبر انحراف هو زيادة الانحراف المعياري 2.1. يتم تفسير النتائج في نموذج مبسط حيث تتحلل الغلوينات المنتجة للزوجين عبر أخف شاحن إلى أخف محايد. في هذا النموذج، يتم استبعاد الغلوينات حتى كتل تبلغ حوالي 1.6 تيرا إلكترون فولت اعتمادًا على الطيف الكتلي للنموذج المبسط، وبالتالي تجاوز حدود عمليات البحث السابقة.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Research , Preprint 2023Embargo end date: 01 Jan 2023 Denmark, United Kingdom, Italy, Czech Republic, China (People's Republic of), Italy, China (People's Republic of), Czech Republic, China (People's Republic of), FrancePublisher:Elsevier BV Funded by:NSERCNSERCG. Aad; B. Abbott; K. Abeling; N.J. Abicht; S.H. Abidi; A. Aboulhorma; H. Abramowicz; H. Abreu; Y. Abulaiti; A.C. Abusleme Hoffman; B.S. Acharya; C. Adam Bourdarios; L. Adamczyk; L. Adamek; S.V. Addepalli; M.J. Addison; J. Adelman; A. Adiguzel; T. Adye; A.A. Affolder; Y. Afik; M.N. Agaras; J. Agarwala; A. Aggarwal; C. Agheorghiesei; A. Ahmad; F. Ahmadov; W.S. Ahmed; S. Ahuja; X. Ai; G. Aielli; M. Ait Tamlihat; B. Aitbenchikh; I. Aizenberg; M. Akbiyik; T.P.A. Åkesson; A.V. Akimov; D. Akiyama; N.N. Akolkar; K. Al Khoury; G.L. Alberghi; J. Albert; P. Albicocco; G.L. Albouy; S. Alderweireldt; M. Aleksa; I.N. Aleksandrov; C. Alexa; T. Alexopoulos; A. Alfonsi; F. Alfonsi; M. Algren; M. Alhroob; B. Ali; H.M.J. Ali; S. Ali; S.W. Alibocus; M. Aliev; G. Alimonti; W. Alkakhi; C. Allaire; B.M.M. Allbrooke; J.F. Allen; C.A. Allendes Flores; P.P. Allport; A. Aloisio; F. Alonso; C. Alpigiani; M. Alvarez Estevez; A. Alvarez Fernandez; M.G. Alviggi; M. Aly; Y. Amaral Coutinho; A. Ambler; C. Amelung; M. Amerl; C.G. Ames; D. Amidei; S.P. Amor Dos Santos; K.R. Amos; V. Ananiev; C. Anastopoulos; T. Andeen; J.K. Anders; S.Y. Andrean; A. Andreazza; S. Angelidakis; A. Angerami; A.V. Anisenkov; A. Annovi; C. Antel; M.T. Anthony; E. Antipov; M. Antonelli; D.J.A. Antrim; F. Anulli; M. Aoki; T. Aoki; J.A. Aparisi Pozo; M.A. Aparo; L. Aperio Bella; C. Appelt; N. Aranzabal; C. Arcangeletti; A.T.H. Arce; E. Arena; J-F. Arguin; S. Argyropoulos; J.-H. Arling; A.J. Armbruster; O. Arnaez; H. Arnold; Z.P. Arrubarrena Tame; G. Artoni; H. Asada; K. Asai; S. Asai; N.A. Asbah; J. Assahsah; K. Assamagan; R. Astalos; S. Atashi; R.J. Atkin; M. Atkinson; N.B. Atlay; H. Atmani; P.A. Atmasiddha; K. Augsten; S. Auricchio; A.D. Auriol; V.A. Austrup; G. Avolio; K. Axiotis; G. Azuelos; D. Babal; H. Bachacou; K. Bachas; A. Bachiu; F. Backman; A. Badea; P. Bagnaia; M. Bahmani; A.J. Bailey; V.R. Bailey; J.T. Baines; L. Baines; C. Bakalis; O.K. Baker; E. Bakos; D. Bakshi Gupta; R. Balasubramanian; E.M. Baldin; P. Balek; E. Ballabene; F. Balli; L.M. Baltes; W.K. Balunas; J. Balz; E. Banas; M. Bandieramonte; A. Bandyopadhyay; S. Bansal; L. Barak; M. Barakat; E.L. Barberio; D. Barberis; M. Barbero; G. Barbour; K.N. Barends; T. Barillari; M-S. Barisits; T. Barklow; P. Baron; D.A. Baron Moreno; A. Baroncelli; G. Barone; A.J. Barr; J.D. Barr; L. Barranco Navarro; F. Barreiro; J. Barreiro Guimarães da Costa; U. Barron; M.G. Barros Teixeira; S. Barsov; F. Bartels; R. Bartoldus; A.E. Barton; P. Bartos; A. Basan; M. Baselga; A. Bassalat; M.J. Basso; C.R. Basson; R.L. Bates; S. Batlamous; J.R. Batley; B. Batool; M. Battaglia; D. Battulga; M. Bauce;doi: 10.1016/j.physletb.2023.138154 , 10.3204/pubdb-2024-05205 , 10.48550/arxiv.2303.10090 , 10.3204/pubdb-2023-04962
arXiv: 2303.10090
handle: 2108/342143 , 11582/340795
doi: 10.1016/j.physletb.2023.138154 , 10.3204/pubdb-2024-05205 , 10.48550/arxiv.2303.10090 , 10.3204/pubdb-2023-04962
arXiv: 2303.10090
handle: 2108/342143 , 11582/340795
Parton energy loss in the quark-gluon plasma (QGP) is studied with a measurement of photon-tagged jet production in 1.7 nb$^{-1}$ of Pb+Pb data and 260 pb$^{-1}$ of $pp$ data, both at $\sqrt{s_\mathrm{NN}} = 5.02$ TeV, with the ATLAS detector. The process $pp \to \gamma$+jet+$X$ and its analogue in Pb+Pb collisions is measured in events containing an isolated photon with transverse momentum ($p_\mathrm{T}$) above $50$ GeV and reported as a function of jet $p_\mathrm{T}$. This selection results in a sample of jets with a steeply falling $p_\mathrm{T}$ distribution that are mostly initiated by the showering of quarks. The $pp$ and Pb+Pb measurements are used to report the nuclear modification factor, $R_\mathrm{AA}$, and the fractional energy loss, $S_\mathrm{loss}$, for photon-tagged jets. In addition, the results are compared with the analogous ones for inclusive jets, which have a significantly smaller quark-initiated fraction. The $R_\mathrm{AA}$ and $S_\mathrm{loss}$ values are found to be significantly different between those for photon-tagged jets and inclusive jets, demonstrating that energy loss in the QGP is sensitive to the colour-charge of the initiating parton. The results are also compared with a variety of theoretical models of colour-charge-dependent energy loss. Physics letters / B 846, 138154 - (2023). doi:10.1016/j.physletb.2023.138154 Published by North-Holland Publ., Amsterdam
Archivio della Ricer... arrow_drop_down Archivio della Ricerca - Università di Roma Tor vergataArticle . 2023Full-Text: https://hdl.handle.net/2108/342143Data sources: Bielefeld Academic Search Engine (BASE)Queen Mary University of London: Queen Mary Research Online (QMRO)Article . 2023License: CC BYData sources: Bielefeld Academic Search Engine (BASE)Recolector de Ciencia Abierta, RECOLECTAArticle . 2023Data sources: Recolector de Ciencia Abierta, RECOLECTARepository of the Czech Academy of SciencesArticle . 2023Data sources: Repository of the Czech Academy of SciencesUniversity of Copenhagen: ResearchArticle . 2023Data sources: Bielefeld Academic Search Engine (BASE)Fondazione Bruno Kessler: CINECA IRISArticle . 2023Data sources: Bielefeld Academic Search Engine (BASE)Archive de l'Observatoire de Paris (HAL)Article . 2023Data sources: Bielefeld Academic Search Engine (BASE)Université Savoie Mont Blanc: HALArticle . 2023Data sources: Bielefeld Academic Search Engine (BASE)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.euAccess RoutesGreen gold 3 citations 3 popularity Average influence Top 10% impulse Average Powered by BIP!
more_vert Archivio della Ricer... arrow_drop_down Archivio della Ricerca - Università di Roma Tor vergataArticle . 2023Full-Text: https://hdl.handle.net/2108/342143Data sources: Bielefeld Academic Search Engine (BASE)Queen Mary University of London: Queen Mary Research Online (QMRO)Article . 2023License: CC BYData sources: Bielefeld Academic Search Engine (BASE)Recolector de Ciencia Abierta, RECOLECTAArticle . 2023Data sources: Recolector de Ciencia Abierta, RECOLECTARepository of the Czech Academy of SciencesArticle . 2023Data sources: Repository of the Czech Academy of SciencesUniversity of Copenhagen: ResearchArticle . 2023Data sources: Bielefeld Academic Search Engine (BASE)Fondazione Bruno Kessler: CINECA IRISArticle . 2023Data sources: Bielefeld Academic Search Engine (BASE)Archive de l'Observatoire de Paris (HAL)Article . 2023Data sources: Bielefeld Academic Search Engine (BASE)Université Savoie Mont Blanc: HALArticle . 2023Data sources: Bielefeld Academic Search Engine (BASE)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Research , Preprint 2023Embargo end date: 01 Jan 2022 France, Chile, Czech Republic, France, Australia, United Kingdom, Denmark, China (People's Republic of), Australia, France, Czech Republic, China (People's Republic of), United Kingdom, United Kingdom, France, France, South Africa, Italy, South Africa, France, Norway, China (People's Republic of), Italy, South Africa, South Africa, ItalyPublisher:Springer Science and Business Media LLC Funded by:NSERCNSERCAad, Georges; Abbott, Braden Keim; Abbott, D. C.; Abeling, Kira; Abidi, Haider; Aboulhorma, Asmaa; Abramowicz, Halina; Abreu, Henso; Abulaiti, Yiming; Abusleme Hoffman, A. C.; Acharya, Bobby Samir; Achkar, Baida; Adam, Lennart; Adam Bourdarios, Claire; Adamczyk, Leszek; Adamek, Lukas; Addepalli, Sagar; Adelman, Jahred; Adiguzel, Aytul; Adorni Braccesi Chiassi, Sofia; Adye, Tim; Affolder, Tony; Affolder, A. A.; Afik, Yoav; Agaras, Merve Nazlim; Agarwala, Jinky; Aggarwal, Anamika; Agheorghiesei, Catalin; Aguilar Saavedra, Juan Antonio; Ahmad, Ammara; Ahmadov, Faig; Ahmed, Waleed Syed; Ai, Xiaocong; Aielli, Giulio; Aizenberg, Iakov; Akbiyik, Melike; Åkesson, T. P. A.; Akimov, Andrei; Al Khoury, Konie; Alberghi, Gian Luigi; Albert, Justin; Albicocco, Pietro; Alconada Verzini, M. J.; Alderweireldt, Sara; Aleksa, Martin; Aleksandrov, I. N.; Alexa, Calin; Alexopoulos, Theodoros; Alfonsi, Alice; Alfonsi, Fabrizio; Alhroob, Muhammad; Ali, Babar; Ali, Shahzad; Aliev, Malik; Alimonti, Gianluca; Allaire, Corentin; Allbrooke, Benedict; Allport, Philip Patrick; Aloisio, Alberto; Alonso, Francisco; Alpigiani, Cristiano; Alunno Camelia, Elio; Alvarez Estevez, Manuel; Alviggi, Mariagrazia; Do Amaral Coutinho, Yara; Ambler, Alessandro; Amelung, Christoph; Ames, Christoph; Amidei, Dante; Amor Dos Santos, Susana Patricia; Amoroso, Simone; Amos, Kieran Robert; Amrouche, Cherifa Sabrina; Ananiev, Viktor; Anastopoulos, Christos; Andari, Nansi; Andeen, Timothy Robert; Anders, John Kenneth; Andrean, Stefio Yosse; Andreazza, Attilio; Angelidakis, Stylianos; Angerami, Aaron; Anisenkov, Alexey; Annovi, Alberto; Antel, Claire; Anthony, Matthew Thomas; Antipov, Egor; Antonelli, Mario; Antrim, Daniel Joseph; Anulli, Fabio; Aoki, Masato; Aparisi Pozo, Javier Alberto; Aparo, Marco; Aperio Bella, Ludovica; Appelt, Christian; Aranzabal Barrio, Nordin; Araujo Ferraz, Victor; Arcangeletti, Chiara; Arce, Ayana Tamu; Arena, Eloisa; Arguin, Jean-Francois; Argyropoulos, Spyros; Arling, Jan-Hendrik; Armbruster, Aaron James; Arnaez, Olivier; Arnold, Hannah; Arrubarrena Tame, Zulit Paola; Artoni, Giacomo; Asada, Haruka; Asai, Kanae; Asai, Shoji; Asbah, Nedaa Alexandra; Asimakopoulou, Eleni Myrto; Assahsah, Jihad; Assamagan, Ketevi Adikle; Astalos, Robert; Atkin, Ryan Justin; Atkinson, Markus Julian; Atlay, Naim Bora; Atmani, Hicham; Atmasiddha, Prachi; Augsten, Kamil; Auricchio, Silvia; Auriol, Adrien; Austrup, Volker Andreas; Avner, Gal; Avolio, Giuseppe; Axiotis, Konstantinos; Ayoub, Mohamad Kassem; Azuelos, Georges; Babal, Dominik; Bachacou, Henri; Bachas, Konstantinos; Bachiu, Alexander; Backman, Karl Filip; Badea, Anthony; Bagnaia, Paolo; Bahmani, Marzieh; Bailey, A. J.; Bailey, Virginia; Baines, J. T.; Bakalis, Christos; Baker, Keith; Bakker, Pepijn Johannes; Bakos, Evelin; Bakshi Gupta, Debottam; Balaji, Shyam; Balasubramanian, Rahul; Baldin, Evgenii; Balek, Petr; Ballabene, Eric; Balli, Fabrice; Baltes, Lisa Marie; Balunas, William Keaton; Balz, Johannes; Banas, Elzbieta; Bandieramonte, Marilena; Bandyopadhyay, Anjishnu; Bansal, Shubham; Barak, Liron; Barberio, Elisabetta; Barberis, Dario; Barbero, Marlon Benoit; Barbour, Gregory; Barends, Kevin Nicholas; Barillari, Teresa; Barisits, Martin; Barkeloo, Jason Tyler Colt; Barklow, Tim; Barnett, Michael; Baron, Petr; Baron Moreno, D. A.; Baroncelli, Toni; Baroncelli, A.; Barone, Gaetano; Barr, A. J.; Barranco Navarro, Laura; Barreiro Alonso, Fernando; Barreiro Guimaraes Da Costa, Joao; Barron, Uriel; Barros Teixeira, M. G.; Barsov, Sergey; Bartels, Falk; Bartoldus, Rainer; Barton, Adam Edward; Bartos, Pavol; Basalaev, Artem; Basan, Alexander; Baselga Bacardit, Marta; Bashta, Inna; Bassalat, Ahmed; Basso, Matthew Joseph; Basson, Candice Ruth; Bates, Richard; Batlamous, Souad; Batley, Richard; Batool, Binish; Battaglia, Marco; Bauce, Matteo; Bauer, Patrick;doi: 10.1140/epjc/s10052-023-11427-9 , 10.3204/pubdb-2023-03713 , 10.3204/pubdb-2023-03772 , 10.48550/arxiv.2204.13530
arXiv: 2204.13530
handle: 10500/30109 , 2108/327223 , 2440/139521 , 11582/339798 , 11250/3088912
doi: 10.1140/epjc/s10052-023-11427-9 , 10.3204/pubdb-2023-03713 , 10.3204/pubdb-2023-03772 , 10.48550/arxiv.2204.13530
arXiv: 2204.13530
handle: 10500/30109 , 2108/327223 , 2440/139521 , 11582/339798 , 11250/3088912
AbstractThis paper presents a measurement of b-jet production in Pb+Pb and pp collisions at $$\sqrt{s_{_\text {NN}}}=5.02$$ s NN = 5.02 TeV with the ATLAS detector at the LHC. The measurement uses 260 $$\text {pb}^{-1}$$ pb - 1 of pp collisions collected in 2017 and 1.4 $$\text {nb}^{-1}$$ nb - 1 of Pb+Pb collisions collected in 2018. In both collision systems, jets are reconstructed via the anti-$$k_{t}$$ k t algorithm. The b-jets are identified from a sample of jets containing muons from the semileptonic decay of b-quarks using template fits of the muon momentum relative to the jet axis. In pp collisions, b-jets are reconstructed for radius parameters $$R= 0.2$$ R = 0.2 and $$R= 0.4$$ R = 0.4 , and only $$R= 0.2$$ R = 0.2 jets are used in Pb+Pb collisions. For comparison, inclusive $$R= 0.2$$ R = 0.2 jets are also measured using 1.7 $$\text {nb}^{-1}$$ nb - 1 of Pb+Pb collisions collected in 2018 and the same pp collision data as the b-jet measurement. The nuclear modification factor, $$R_\text {AA}$$ R AA , is calculated for both b-jets and inclusive jets with $$R= 0.2$$ R = 0.2 over the transverse momentum range of 80–290 GeV. The nuclear modification factor for b-jets decreases from peripheral to central collisions. The ratio of the b-jet $$R_\text {AA}$$ R AA to inclusive jet $$R_\text {AA}$$ R AA is also presented and suggests that the $$R_\text {AA}$$ R AA for b-jets is larger than that for inclusive jets in central Pb+Pb collisions. The measurements are compared with theoretical calculations and suggest a role for mass and colour-charge effects in partonic energy loss in heavy-ion collisions.
Archivio Istituziona... arrow_drop_down Queen Mary University of London: Queen Mary Research Online (QMRO)Article . 2023License: CC BYData sources: Bielefeld Academic Search Engine (BASE)Archivio della Ricerca - Università di Roma Tor vergataArticle . 2023Full-Text: https://hdl.handle.net/2108/327223Data sources: Bielefeld Academic Search Engine (BASE)The University of Adelaide: Digital LibraryArticle . 2023License: CC BYFull-Text: https://hdl.handle.net/2440/139521Data sources: Bielefeld Academic Search Engine (BASE)University of Bergen: Bergen Open Research Archive (BORA-UiB)Article . 2023License: CC BYFull-Text: https://hdl.handle.net/11250/3088912Data sources: Bielefeld Academic Search Engine (BASE)European Physical Journal C: Particles and FieldsArticle . 2023 . Peer-reviewedLicense: CC BYData sources: CrossrefRecolector de Ciencia Abierta, RECOLECTAArticle . 2023Data sources: Recolector de Ciencia Abierta, RECOLECTARepository of the Czech Academy of SciencesArticle . 2023Data sources: Repository of the Czech Academy of SciencesUniversity of Copenhagen: ResearchArticle . 2023Data sources: Bielefeld Academic Search Engine (BASE)Lancaster University: Lancaster EprintsArticle . 2023Data sources: Bielefeld Academic Search Engine (BASE)Pontificia Universidad Católica de Chile: Repositorio UCArticle . 2023Data sources: Bielefeld Academic Search Engine (BASE)Archive de l'Observatoire de Paris (HAL)Article . 2023Data sources: Bielefeld Academic Search Engine (BASE)Fondazione Bruno Kessler: CINECA IRISArticle . 2023Data sources: Bielefeld Academic Search Engine (BASE)Université Savoie Mont Blanc: HALArticle . 2023Data sources: Bielefeld Academic Search Engine (BASE)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.All Research productsarrow_drop_down <script type="text/javascript"> <!-- document.write('<div id="oa_widget"></div>'); document.write('<script type="text/javascript" src="https://beta.openaire.eu/index.php?option=com_openaire&view=widget&format=raw&projectId=10.1140/epjc/s10052-023-11427-9&type=result"></script>'); --> </script>
For further information contact us at helpdesk@openaire.eu3 citations 3 popularity Average influence Average impulse Average Powered by BIP!
more_vert Archivio Istituziona... arrow_drop_down Queen Mary University of London: Queen Mary Research Online (QMRO)Article . 2023License: CC BYData sources: Bielefeld Academic Search Engine (BASE)Archivio della Ricerca - Università di Roma Tor vergataArticle . 2023Full-Text: https://hdl.handle.net/2108/327223Data sources: Bielefeld Academic Search Engine (BASE)The University of Adelaide: Digital LibraryArticle . 2023License: CC BYFull-Text: https://hdl.handle.net/2440/139521Data sources: Bielefeld Academic Search Engine (BASE)University of Bergen: Bergen Open Research Archive (BORA-UiB)Article . 2023License: CC BYFull-Text: https://hdl.handle.net/11250/3088912Data sources: Bielefeld Academic Search Engine (BASE)European Physical Journal C: Particles and FieldsArticle . 2023 . Peer-reviewedLicense: CC BYData sources: CrossrefRecolector de Ciencia Abierta, RECOLECTAArticle . 2023Data sources: Recolector de Ciencia Abierta, RECOLECTARepository of the Czech Academy of SciencesArticle . 2023Data sources: Repository of the Czech Academy of SciencesUniversity of Copenhagen: ResearchArticle . 2023Data sources: Bielefeld Academic Search Engine (BASE)Lancaster University: Lancaster EprintsArticle . 2023Data sources: Bielefeld Academic Search Engine (BASE)Pontificia Universidad Católica de Chile: Repositorio UCArticle . 2023Data sources: Bielefeld Academic Search Engine (BASE)Archive de l'Observatoire de Paris (HAL)Article . 2023Data sources: Bielefeld Academic Search Engine (BASE)Fondazione Bruno Kessler: CINECA IRISArticle . 2023Data sources: Bielefeld Academic Search Engine (BASE)Université Savoie Mont Blanc: HALArticle . 2023Data sources: Bielefeld Academic Search Engine (BASE)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
You have already added works in your ORCID record related to the merged Research product.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Other literature type 2015Publisher:OpenAlex Georges Aad; B. Abbott; J. Abdallah; O. Abdinov; R. Aben; M. Abolins; O. S. AbouZeid; Halina Abramowicz; Henso Abreu; R. Abreu; Yiming Abulaiti; B. S. Acharya; L. Adamczyk; T. Adams; J. Adelman; S. Adomeit; T. Adye; A. Affolder; T. Agatonović-Jovin; Juan Antonio Aguilar-Saavedra; S. P. Ahlen; Faig Ahmadov; Giulio Aielli; H. Åkerstedt; T. P. A. Åkesson; G. Akimoto; A. V. Akimov; Gian Luigi Alberghi; J. Albert; S. Albrand; M. J. Alconada Verzini; Martin Aleksa; I. N. Aleksandrov; C. Alexa; G. Alexander; Theodoros Alexopoulos; Muhammad Alhroob; G. Alimonti; L. Alio; John Alison; Steven Patrick Alkire; B. M. M. Allbrooke; Phillip Allport; A. Aloisio; A. Alonso; Francisco Alonso; Cristiano Alpigiani; A. Altheimer; Barbara Álvarez González; D. Álvarez Piqueras; M. G. Alviggi; Brian Thomas Amadio; K. Amako; Yara Amaral Coutinho; Christoph Amelung; D. Amidei; Susana Patricia Amor dos Santos; A. Amorim; Simone Amoroso; N. Amram; G. Amundsen; Christos Anastopoulos; L. S. Ancu; Nansi Andari; T. Andeen; C. F. Anders; G. Anders; John Kenneth Anders; K. J. Anderson; A. Andreazza; V. Andrei; Stylianos Angelidakis; I. Angelozzi; P. Anger; Aaron Angerami; F. Anghinolfi; Alexey Anisenkov; N. Anjos; A. Annovi; M. Antonelli; J. Antoš; F. Anulli; Masato Aoki; L. Aperio Bella; G. Arabidze; Y. Arai; J. P. Araque; Ayana Tamu Arce; Francisco Anuar Arduh; J-F. Arguin; Spyridon Argyropoulos; M. Arık; A. J. Armbruster; Olivier Arnaez; V. Arnal; Hannah Arnold; M. Arratia; O. Arslan; Alexander Artamonov;Les résultats d'une recherche de nouveaux phénomènes dans des événements avec une grande quantité de mouvement transverse manquante et un boson de Higgs se désintégrant en deux photons sont rapportés. Les données des collisions proton-proton à une énergie de centre de masse de 8 TeV et correspondant à une luminosité intégrée de $ 20.3\text{ }\ text {} {\mathrm{fb}}^{\ ensuremath {-}1}$ ont été collectées avec le détecteur ATLAS au LHC. Les données observées sont bien décrites par les arrière-plans attendus du modèle standard. Des limites supérieures sur la section transversale des événements avec un grand élan transversal manquant et un candidat boson de Higgs sont également placées. Les limites d'exclusion sont présentées pour les modèles de physique au-delà du modèle standard présentant des candidats de matière noire. Se informan los resultados de una búsqueda de nuevos fenómenos en eventos con gran momento transversal faltante y un bosón de Higgs en descomposición a dos fotones. Los datos de las colisiones protón-protón a una energía del centro de masa de 8 TeV y correspondientes a una luminosidad integrada de $ 20.3\text{ }\ text {} {\mathrm{fb}}^{\ ensuremath {-}1}$ se han recopilado con el detector ATLAS en el LHC. Los datos observados están bien descritos por los antecedentes del modelo estándar esperado. También se colocan límites superiores en la sección transversal de eventos con gran falta de impulso transversal y un candidato al bosón de Higgs. Los límites de exclusión se presentan para modelos de física más allá del modelo estándar con candidatos de materia oscura. Results of a search for new phenomena in events with large missing transverse momentum and a Higgs boson decaying to two photons are reported. Data from proton-proton collisions at a center-of-mass energy of 8 TeV and corresponding to an integrated luminosity of $20.3\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ have been collected with the ATLAS detector at the LHC. The observed data are well described by the expected standard model backgrounds. Upper limits on the cross section of events with large missing transverse momentum and a Higgs boson candidate are also placed. Exclusion limits are presented for models of physics beyond the standard model featuring dark-matter candidates. تم الإبلاغ عن نتائج البحث عن ظواهر جديدة في أحداث ذات زخم عرضي كبير مفقود وبوزون هيغز يتحلل إلى فوتونين. تم جمع البيانات من اصطدامات البروتون- البروتون عند طاقة مركز الكتلة البالغة 8 تيرا إلكترون فولت والمطابقة لمعان متكامل قدره 20.3 $\ text{}\ text {} {\ mathrm {fb }}^{\ ensuremath{-} 1 }$ باستخدام كاشف أطلس في مصادم الهدرونات الكبير. يتم وصف البيانات المرصودة بشكل جيد من خلال خلفيات النموذج القياسي المتوقعة. يتم أيضًا وضع حدود عليا على المقطع العرضي للأحداث ذات الزخم العرضي الكبير المفقود ومرشح بوزون هيغز. يتم تقديم حدود الاستبعاد لنماذج الفيزياء التي تتجاوز النموذج القياسي الذي يضم مرشحين للمادة المظلمة.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Article , Research , Preprint 2023 FrancePublisher:Springer Science and Business Media LLC Funded by:NSERCNSERCAad, Georges; Abbott, Braden Keim; Abbott, D. C.; Abeling, Kira; Abidi, Haider; Aboulhorma, Asmaa; Abramowicz, Halina; Abreu, Henso; Abulaiti, Yiming; Abusleme Hoffman, A. C.; Acharya, Bobby Samir; Adam Bourdarios, Claire; Adamczyk, Leszek; Adamek, Lukas; Addepalli, Sagar; Adelman, Jahred; Adiguzel, Aytul; Adorni Braccesi Chiassi, Sofia; Adye, Tim; Affolder, Tony; Affolder, A. A.; Afik, Yoav; Agaras, Merve Nazlim; Agarwala, Jinky; Aggarwal, Anamika; Agheorghiesei, Catalin; Aguilar Saavedra, Juan Antonio; Ahmad, Ammara; Ahmadov, Faig; Ahmed, Waleed Syed; Ahuja, Sudha; Ai, Xiaocong; Aielli, Giulio; Ait Tamlihat, Malak; Aitbenchikh, Brahim; Aizenberg, Iakov; Akbiyik, Melike; Åkesson, T. P. A.; Akimov, Andrei; Al Khoury, Konie; Alberghi, Gian Luigi; Albert, Justin; Albicocco, Pietro; Alderweireldt, Sara; Aleksa, Martin; Aleksandrov, I. N.; Alexa, Calin; Alexopoulos, Theodoros; Alfonsi, Alice; Alfonsi, Fabrizio; Alhroob, Muhammad; Ali, Babar; Ali, Shahzad; Aliev, Malik; Alimonti, Gianluca; Alkakhi, Wael; Allaire, Corentin; Allbrooke, Benedict; Allendes Flores, Cristian Andres; Allport, Philip Patrick; Aloisio, Alberto; Alonso, Francisco; Alpigiani, Cristiano; Alvarez Estevez, Manuel; Alviggi, Mariagrazia; Aly, Mohamed; Do Amaral Coutinho, Yara; Ambler, Alessandro; Amelung, Christoph; Amerl, Maximilian; Ames, Christoph; Amidei, Dante; Amor Dos Santos, Susana Patricia; Amos, Kieran Robert; Ananiev, Viktor; Anastopoulos, Christos; Andeen, Timothy Robert; Anders, John Kenneth; Andrean, Stefio Yosse; Andreazza, Attilio; Angelidakis, Stylianos; Angerami, Aaron; Anisenkov, Alexey; Annovi, Alberto; Antel, Claire; Anthony, Matthew Thomas; Antipov, Egor; Antonelli, Mario; Antrim, Daniel Joseph; Anulli, Fabio; Aoki, Masato; Aoki, Takumi; Aparisi Pozo, Javier Alberto; Aparo, Marco; Aperio Bella, Ludovica; Appelt, Christian; Aranzabal Barrio, Nordin; Araujo Ferraz, Victor; Arcangeletti, Chiara; Arce, Ayana Tamu; Arena, Eloisa; Arguin, Jean-Francois; Argyropoulos, Spyros; Arling, Jan-Hendrik; Armbruster, Aaron James; Arnaez, Olivier; Arnold, Hannah; Arrubarrena Tame, Zulit Paola; Artoni, Giacomo; Asada, Haruka; Asai, Kanae; Asai, Shoji; Asbah, Nedaa Alexandra; Assahsah, Jihad; Assamagan, Ketevi Adikle; Astalos, Robert; Atkin, Ryan Justin; Atkinson, Markus Julian; Atlay, Naim Bora; Atmani, Hicham; Atmasiddha, Prachi; Augsten, Kamil; Auricchio, Silvia; Auriol, Adrien; Austrup, Volker Andreas; Avner, Gal; Avolio, Giuseppe; Axiotis, Konstantinos; Ayoub, Mohamad Kassem; Azuelos, Georges; Babal, Dominik; Bachacou, Henri; Bachas, Konstantinos; Bachiu, Alexander; Backman, Karl Filip; Badea, Anthony; Bagnaia, Paolo; Bahmani, Marzieh; Bailey, A. J.; Bailey, Virginia; Baines, J. T.; Bakalis, Christos; Baker, Keith; Bakker, Pepijn Johannes; Bakos, Evelin; Bakshi Gupta, Debottam; Balaji, Shyam; Balasubramanian, Rahul; Baldin, Evgenii; Balek, Petr; Ballabene, Eric; Balli, Fabrice; Baltes, Lisa Marie; Balunas, William Keaton; Balz, Johannes; Banas, Elzbieta; Bandieramonte, Marilena; Bandyopadhyay, Anjishnu; Bansal, Shubham; Barak, Liron; Barberio, Elisabetta; Barberis, Dario; Barbero, Marlon Benoit; Barbour, Gregory; Barends, Kevin Nicholas; Barillari, Teresa; Barisits, Martin; Barklow, Tim; Barnett, Michael; Baron, Petr; Baron Moreno, D. A.; Baroncelli, Toni; Baroncelli, A.; Barone, Gaetano; Barr, A. J.; Barranco Navarro, Laura; Barreiro Alonso, Fernando; Barreiro Guimaraes Da Costa, Joao; Barron, Uriel; Barros Teixeira, M. G.; Barsov, Sergey; Bartels, Falk; Bartoldus, Rainer; Barton, Adam Edward; Bartos, Pavol; Basalaev, Artem; Basan, Alexander; Baselga Bacardit, Marta; Bashta, Inna; Bassalat, Ahmed; Basso, Matthew Joseph; Basson, Candice Ruth; Bates, Richard; Batlamous, Souad; Batley, Richard; Batool, Binish; Battaglia, Marco; Battulga, Daariimaa; Bauce, Matteo; Bauer, Patrick;AbstractCross-sections for the production of a Z boson in association with two photons are measured in proton–proton collisions at a centre-of-mass energy of 13 TeV. The data used correspond to an integrated luminosity of 139 fb$$^{-1}$$ - 1 recorded by the ATLAS experiment during Run 2 of the LHC. The measurements use the electron and muon decay channels of the Z boson, and a fiducial phase-space region where the photons are not radiated from the leptons. The integrated $$Z(\rightarrow \ell \ell )\gamma \gamma $$ Z ( → ℓ ℓ ) γ γ cross-section is measured with a precision of 12% and differential cross-sections are measured as a function of six kinematic variables of the $$Z\gamma \gamma $$ Z γ γ system. The data are compared with predictions from MC event generators which are accurate to up to next-to-leading order in QCD. The cross-section measurements are used to set limits on the coupling strengths of dimension-8 operators in the framework of an effective field theory.
European Physical Jo... arrow_drop_down European Physical Journal C: Particles and FieldsArticle . 2023 . Peer-reviewedLicense: CC BYData sources: CrossrefArchive de l'Observatoire de Paris (HAL)Article . 2023Data sources: Bielefeld Academic Search Engine (BASE)Université Savoie Mont Blanc: HALArticle . 2023Data sources: Bielefeld Academic Search Engine (BASE)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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visibility 6visibility views 6 Powered bymore_vert European Physical Jo... arrow_drop_down European Physical Journal C: Particles and FieldsArticle . 2023 . Peer-reviewedLicense: CC BYData sources: CrossrefArchive de l'Observatoire de Paris (HAL)Article . 2023Data sources: Bielefeld Academic Search Engine (BASE)Université Savoie Mont Blanc: HALArticle . 2023Data sources: Bielefeld Academic Search Engine (BASE)add ClaimPlease grant OpenAIRE to access and update your ORCID works.This Research product is the result of merged Research products in OpenAIRE.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Other literature type , Article 2011 United StatesPublisher:OpenAlex Georges Aad; B. Abbott; J. Weingarten; A. A. Abdelalim; A. Abdesselam; O. Abdinov; P. A. Delsart; M. Abolins; Halina Abramowicz; Henso Abreu; E. Acerbi; B. S. Acharya; M. Ackers; A. Trzupek; T. N. Addy; J. Adelman; M. Aderholz; S. Guindon; P. Adragna; T. Adye; S. Aefsky; J. A. Aguilar–Saavedra; J. Große-Knetter; S. P. Ahlen; F. Ahles; Ashfaq Ahmad; M. Ahsan; G. Aielli; T. Akdoğan; T. P. A. Åkesson; S. Jézéquel; A. V. Akimov; M. S. Alam; M. A. Alam; K. Jon-And; Martin Aleksa; S. Palestini; M. Aleppo; F. Alessandria; C. Alexa; Alexander Tapper; L. Adamczyk; T. Alexopoulos; M. Alhroob; G. Alimonti; G. Alimonti; M. Paulini; M. Aliyev; P. P. Allport; S. E. Allwood-Spiers; Dragos Velicanu; Francisco Alonso; R. Alon; A. Alonso; J. Alonso; Kun Liu; B. R. Ko; P. Amaral; Christoph Amelung; V. V. Ammosov; A. Amorim; E. Ros; N. Amram; C. Anastopoulos; T. Andeen; C. F. Anders; K. J. Anderson; A. Andreazza; V. Andrei; P. Laurelli; X. S. Anduaga; A. Angerami; S. Tisserant; N. Anjos; A. Annovi; A. Antonaki; Mario Antonelli; S. Giagu; J. Antos̆; M. Aoki; S. Aoun; L. Aperio Bella; R. Apolle; G. Arabidze; I. Aracena; Y. Arai; Jean-François Arguin; J. P. Archambault; S. Arfaoui; Jean-François Arguin; E. Arık; M. Arik; Aaron James Armbruster; K. Arms; S.R. Armstrong; O. Arnaez; C. Arnault; A. Artamonov; G. Artoni; D. Arutinov;Une recherche d'événements diphotoniques avec une grande énergie transversale manquante est présentée. Les données ont été collectées avec le détecteur ATLAS dans des collisions proton-proton à √s=7 TeV au Grand collisionneur de hadrons du CERN et correspondent à une luminosité intégrée de 3,1 pb⁻¹. Aucun excès de tels événements n'est observé au-dessus de la prédiction de fond du modèle standard. Dans le contexte d'un modèle spécifique avec une dimension supplémentaire universelle avec un rayon de compactification R et des désintégrations induites par la gravité, les valeurs de 1/R<729 GeV sont exclues à 95% C. L., fournissant la limite la plus sensible sur ce modèle à ce jour. Se presenta una búsqueda de eventos de difotón con gran energía transversal faltante. Los datos se recogieron con el detector ATLAS en colisiones protón-protón a √s=7 TeV en el Gran Colisionador de Hadrones del CERN y corresponden a una luminosidad integrada de 3,1 pb-1. No se observa un exceso de tales eventos por encima de la predicción de fondo del modelo estándar. En el contexto de un modelo específico con una dimensión extra universal con radio de compactación R y desintegraciones inducidas por gravedad, se excluyen valores de 1/R<729 GeV al 95% C. L., proporcionando el límite más sensible en este modelo hasta la fecha. A search for diphoton events with large missing transverse energy is presented. The data were collected with the ATLAS detector in proton-proton collisions at √s=7 TeV at the CERN Large Hadron Collider and correspond to an integrated luminosity of 3.1 pb⁻¹. No excess of such events is observed above the standard model background prediction. In the context of a specific model with one universal extra dimension with compactification radius R and gravity-induced decays, values of 1/R<729 GeV are excluded at 95% C. L., providing the most sensitive limit on this model to date. يتم تقديم بحث عن أحداث diphoton ذات طاقة عرضية كبيرة مفقودة. تم جمع البيانات باستخدام كاشف أطلس في تصادمات البروتون والبروتون عند √s=7 TeV في مصادم الهدرونات الكبير CERN وتتوافق مع لمعان متكامل قدره 3.1 رطل¹. لم يتم ملاحظة أي زيادة في مثل هذه الأحداث فوق التنبؤ بخلفية النموذج القياسي. في سياق نموذج محدد ذو بعد إضافي عالمي واحد مع نصف قطر ضغط R وتحلل ناتج عن الجاذبية، يتم استبعاد قيم 1/R<729 GeV عند 95 ٪ CL، مما يوفر الحد الأكثر حساسية لهذا النموذج حتى الآن.
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For further information contact us at helpdesk@openaire.eudescription Publicationkeyboard_double_arrow_right Other literature type 2014Publisher:OpenAlex Georges Aad; B. Abbott; J. Weingarten; M. P. Casado; O. Abdinov; Goetz Gaycken; P. A. Delsart; M. Abolins; Goetz Gaycken; Halina Abramowicz; Henso Abreu; Jos Vermeulen; Yiming Abulaiti; B. S. Acharya; L. Adamczyk; A. Trzupek; J. Adelman; S. Guindon; T. Adye; T. Agatonović-Jovin; J. A. Aguilar–Saavedra; B. Stugu; S. P. Ahlen; Faig Ahmadov; G. Aielli; H. Åkerstedt; T. P. A. Åkesson; S. Jézéquel; A. V. Akimov; Gian Luigi Alberghi; J. Albert; K. Jon-And; María Josefina Alconada Verzini; Martin Aleksa; S. Palestini; C. Alexa; G. Alexander; L. Adamczyk; T. Alexopoulos; M. Alhroob; G. Alimonti; L. Alio; A. Lister; B. M. M. Allbrooke; T. Adye; P. P. Allport; Francisco Alonso; A. Alonso; Francisco Alonso; Cristiano Alpigiani; A. Altheimer; Bárbara Álvarez González; Mariagrazia Alviggi; Y. Coadou; Yara Amaral Coutinho; Christoph Amelung; D. Amidei; Susana Patricia Amor dos Santos; A. Amorim; Simone Amoroso; N. Amram; A. Rozanov; C. Anastopoulos; E. Hill; Nansi Andari; T. Andeen; C. F. Anders; G. Anders; K. J. Anderson; A. Andreazza; V. Andrei; X. S. Anduaga; A. Angerami; N. Hod; A. Ventura; A. Angerami; S. Tisserant; Alexey Anisenkov; N. Anjos; A. Annovi; A. Antonaki; Mario Antonelli; J. Antos̆; M. Aoki; M. Aoki; L. Aperio Bella; R. Apolle; G. Arabidze; I. Aracena; Y. Arai; J. P. Araque; Jean-François Arguin; F. A. Arduh; Jean-François Arguin; S. Argyropoulos; M. Arik; Aaron James Armbruster; O. Arnaez; P. Pralavorio;Une recherche a été effectuée, en utilisant l'échantillon complet de données $ 20.3\text{ }\text {} {\mathrm{fb}}^{\ ensuremath {-}1}$ de 8 collisions proton-proton TeV collectées en 2012 avec le détecteur ATLAS du LHC, pour les photons provenant d'un sommet déplacé en raison de la désintégration d'une particule neutre à longue durée de vie en un photon et une particule invisible. L'analyse examine le diphoton et l'état final de la quantité de mouvement transverse manquant, et est donc la plus sensible à la production de paires de particules à longue durée de vie. La technique d'analyse exploite les capacités du calorimètre électromagnétique ATLAS pour effectuer des mesures précises de la direction de vol, ainsi que du temps de vol, des photons. Aucun excès n'est observé par rapport aux prédictions du modèle standard pour le contexte. Les limites d'exclusion sont définies dans le contexte des modèles de rupture de supersymétrie à médiation par jauge, le neutrino le plus léger étant la particule supersymétrique la plus proche et se décomposant en un photon et un gravitino avec une durée de vie comprise entre 250 ps et environ 100 ns. Se ha realizado una búsqueda, utilizando la muestra de datos completa de $ 20.3\text{ }\ text {} {\mathrm{fb}}^{\ ensuremath {-}1}$ de 8 colisiones protón-protón TeV recolectadas en 2012 con el detector ATLAS en el LHC, para fotones que se originan en un vértice desplazado debido a la descomposición de una partícula neutra de larga vida en un fotón y una partícula invisible. El análisis investiga el difotón más el estado final del momento transversal faltante y, por lo tanto, es más sensible a la producción de pares de partículas de larga vida. La técnica de análisis aprovecha las capacidades del calorímetro electromagnético ATLAS para realizar mediciones precisas de la dirección de vuelo, así como del tiempo de vuelo, de los fotones. No se observa exceso sobre las predicciones del Modelo Estándar para el fondo. Los límites de exclusión se establecen en el contexto de los modelos de ruptura de supersimetría mediados por gauge, siendo el neutralino más ligero la partícula supersimétrica más próxima a la más ligera y descomponiéndose en un fotón y gravitino con una vida útil en el rango de 250 ps a aproximadamente 100 ns. A search has been performed, using the full $20.3\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ data sample of 8 TeV proton-proton collisions collected in 2012 with the ATLAS detector at the LHC, for photons originating from a displaced vertex due to the decay of a neutral long-lived particle into a photon and an invisible particle. The analysis investigates the diphoton plus missing transverse momentum final state, and is therefore most sensitive to pair production of long-lived particles. The analysis technique exploits the capabilities of the ATLAS electromagnetic calorimeter to make precise measurements of the flight direction, as well as the time of flight, of photons. No excess is observed over the Standard Model predictions for background. Exclusion limits are set within the context of gauge mediated supersymmetry breaking models, with the lightest neutralino being the next-to-lightest supersymmetric particle and decaying into a photon and gravitino with a lifetime in the range from 250 ps to about 100 ns. تم إجراء بحث، باستخدام عينة بيانات كاملة بقيمة 20.3 دولارًا\text {}\ text {} {\ mathrm{fb }}^{\ ensuremath {-} 1}دولار من 8 اصطدامات بروتون- بروتون تيف تم جمعها في عام 2012 مع كاشف أطلس في مصادم الهادرونات الكبير، للفوتونات الناشئة من قمة متبدلة بسبب اضمحلال جسيم محايد طويل العمر إلى فوتون وجسيم غير مرئي. يبحث التحليل في الحالة النهائية للزخم المستعرض المفقود، وبالتالي فهو أكثر حساسية لإنتاج زوج من الجسيمات طويلة العمر. تستغل تقنية التحليل قدرات المسعر الكهرومغناطيسي أطلس لإجراء قياسات دقيقة لاتجاه الطيران، وكذلك وقت الطيران، للفوتونات. لم يلاحظ أي زيادة على تنبؤات النموذج القياسي للخلفية. يتم تعيين حدود الاستبعاد في سياق نماذج كسر التناظر الفائق بوساطة المقياس، مع كون المحايد الأخف وزنًا هو الجسيم الفائق التناظر التالي للأخف وزنًا ويتحلل إلى فوتون وجرافيتينو مع عمر يتراوح من 250 ps إلى حوالي 100 ns.
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