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Determination of the strong coupling constant $\alpha_s$ from transverse energy-energy correlations in multijet events at $\sqrt{s} = 8$ TeV using the ATLAS detector

descriptionPublicationkeyboard_double_arrow_right Research , Article , Preprint 01 Jan 2017Embargo end date: 01 Jan 2017 Germany, United States, France, Switzerland, United Kingdom, Germany, South Africa, Italy, South Africa, United States English Publisher:Deutsches Elektronen-Synchrotron, DESY, HamburgFunded by:GSRI | unidentified

Authors: Aaboud, M.; Aad, G.; Abbott, B.; Abdallah, J.; Abdinov, O.; Abeloos, B.; Abidi, S.H.; +193 Authors

Aaboud, M.; Aad, G.; Abbott, B.; Abdallah, J.; Abdinov, O.; Abeloos, B.; Abidi, S.H.; Abouzeid, O.S.; Abraham, N.L.; Abramowicz, H.; Abreu, H.; Abreu, R.; Abulaiti, Y.; Acharya, B.S.; Adachi, S.; Adamczyk, L.; Adelman, J.; Adersberger, M.; Adye, T.; Affolder, A.A.; Agatonovic-Jovin, T.; Agheorghiesei, C.; Aguilar-Saavedra, J.A.; Ahlen, S.P.; Ahmadov, F.; Aielli, G.; Akatsuka, S.; Akerstedt, H.; Åkesson, T.P.A.; Akilli, E.; Akimov, A.V.; Alberghi, G.L.; Albert, J.; Albicocco, P.; Alconada Verzini, M.J.; Aleksa, M.; Aleksandrov, I.N.; Alexa, C.; Alexander, G.; Alexopoulos, T.; Alhroob, M.; Ali, B.; Aliev, M.; Alimonti, G.; Alison, J.; Alkire, S.P.; Allbrooke, B.M.M.; Allen, B.W.; Allport, P.P.; Aloisio, A.; Alonso, A.; Alonso, F.; Alpigiani, C.; Alshehri, A.A.; Alstaty, M.I.; Alvarez Gonzalez, B.; Álvarez Piqueras, D.; Alviggi, M.G.; Amadio, B.T.; Amaral Coutinho, Y.; Amelung, C.; Amidei, D.; Amor Dos Santos, S.P.; Amorim, A.; Amoroso, S.; Amundsen, G.; Anastopoulos, C.; Ancu, L.S.; Andari, N.; Andeen, T.; Anders, C.F.; Anders, J.K.; Anderson, K.J.; Andreazza, A.; Andrei, V.; Angelidakis, S.; Angelozzi, I.; Angerami, A.; Anisenkov, A.V.; Anjos, N.; Annovi, A.; Antel, C.; Antonelli, M.; Antonov, A.; Antrim, D.J.; Anulli, F.; Aoki, M.; Aperio Bella, L.; Arabidze, G.; Arai, Y.; Araque, J.P.; Araujo Ferraz, V.; Arce, A.T.H.; Ardell, R.E.; Arduh, F.A.; Arguin, J.-.; Argyropoulos, S.; Arik, M.; Armbruster, A.J.; Armitage, L.J.; Arnaez, O.; Arnold, H.; Arratia, M.; Arslan, O.; Artamonov, A.; Artoni, G.; Artz, S.; Asai, S.; Asbah, N.; Ashkenazi, A.; Asquith, L.; Assamagan, K.; Astalos, R.; Atkinson, M.; Atlay, N.B.; Augsten, K.; Avolio, G.; Axen, B.; Ayoub, M.K.; Azuelos, G.; Baas, A.E.; Baca, M.J.; Bachacou, H.; Bachas, K.; Backes, M.; Backhaus, M.; Bagnaia, P.; Bahrasemani, H.; Baines, J.T.; Bajic, M.; Baker, O.K.; Baldin, E.M.; Balek, P.; Balli, F.; Balunas, W.K.; Banas, E.; Banerjee, S.; Bannoura, A.A.E.; Barak, L.; Barberio, E.L.; Barberis, D.; Barbero, M.; Barillari, T.; Barisits, M.-.; Barkeloo, J.T.; Barklow, T.; Barlow, N.; Barnes, S.L.; Barnett, B.M.; Barnett, R.M.; Barnovska-Blenessy, Z.; Baroncelli, A.; Barone, G.; Barr, A.J.; Barranco Navarro, L.; Barreiro, F.; Barreiro Guimarães da Costa, J.; Bartoldus, R.; Barton, A.E.; Bartos, P.; Basalaev, A.; Bassalat, A.; Bates, R.L.; Batista, S.J.; Batley, J.R.; Battaglia, M.; Bauce, M.; Bauer, F.; Bawa, H.S.; Beacham, J.B.; Beattie, M.D.; Beau, T.; Beauchemin, P.H.; Bechtle, P.; Beck, H.P.; Becker, K.; Becker, M.; Beckingham, M.; Becot, C.; Beddall, A.J.; Beddall, A.; Bednyakov, V.A.; Bedognetti, M.; Bee, C.P.; Beermann, T.A.; Begalli, M.; Begel, M.; Behr, J.K.; Bell, A.S.; Bella, G.; Bellagamba, L.; Bellerive, A.; Bellomo, M.; Belotskiy, K.; Beltramello, O.; Belyaev, N.L.; Benary, O.; Benchekroun, D.; Bender, M.; Bendtz, K.;

doi: 10.3204/pubdb-2017-13296 , 10.48550/arxiv.1707.02562

arXiv: 1707.02562 , http://arxiv.org/abs/1707.02562

handle: 2434/550127 , 10210/257158 , 1808/26786

Determination of the strong coupling constant $\alpha_s$ from transverse energy-energy correlations in multijet events at $\sqrt{s} = 8$ TeV using the ATLAS detector

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Abstract

Measurements of transverse energy-energy correlations and their associated asymmetries in multi-jet events using the ATLAS detector at the LHC are presented. The data used correspond to $\sqrt{s} = 8$ TeV proton-proton collisions with an integrated luminosity of 20.2 fb$^{-1}$. The results are presented in bins of the scalar sum of the transverse momenta of the two leading jets, unfolded to the particle level and compared to the predictions from Monte Carlo simulations. A comparison with next-to-leading-order perturbative QCD is also performed, showing excellent agreement within the uncertainties. From this comparison, the value of the strong coupling constant is extracted for different energy regimes, thus testing the running of $\alpha_s(\mu)$ predicted in QCD up to scales over 1 TeV. A global fit to the transverse energy-energy correlation distributions yields $\alpha_s(m_Z) = 0.1162 \pm 0.0011 \mbox{ (exp.)}^{+0.0084}_{-0.0070} \mbox{ (theo.)}$, while a global fit to the asymmetry distributions yields a value of $\alpha_s(m_Z) = 0.1196 \pm 0.0013 \mbox{ (exp.)}^{+0.0075}_{-0.0045} \mbox{ (theo.)}$.

(2017).

Countries

Germany, United States, France, Switzerland, United Kingdom, Germany, South Africa, Italy, South Africa, United States

Related Organizations

Lancaster University
United Kingdom
Helmholtz Association of German Research Centres
Germany
Université Savoie Mont Blanc
France
Deutsches Elektronen-Synchrotron DESY
Germany
LInstitut National de Physique Nucléaire et de Physique des Particules
France

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Keywords

perturbation theory [quantum chromodynamics], p p: scattering, data analysis method, multiple production [jet], [PHYS.HEXP] Physics [physics]/High Energy Physics - Experiment [hep-ex], FOS: Physical sciences, transverse momentum dependence, 530, info:eu-repo/classification/ddc/500.2, energy dependence, Settore FIS/04 - Fisica Nucleare e Subnucleare, High Energy Physics - Experiment, High Energy Physics - Experiment (hep-ex), strong interaction: coupling constant, statistical analysis, [ PHYS.HEXP ] Physics [physics]/High Energy Physics - Experiment [hep-ex], jet: multiple production, strong coupling, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], scattering [p p], Settore ING-INF/07 - Misure Elettriche e Elettroniche, p p: colliding beams ; strong interaction: coupling constant ; quantum chromodynamics: perturbation theory ; perturbation theory: higher-order ; numerical calculations: Monte Carlo ; jet: multiple production ; p p: scattering ; higher-order: 1 ; correlation ; transverse energy ; strong coupling ; asymmetry ; ATLAS ; transverse momentum dependence ; energy dependence ; CERN LHC Coll ; statistical analysis ; data analysis method ; experimental results ; 8000 GeV-cms, quantum chromodynamics: perturbation theory, 8000 GeV-cms, Settore FIS/01 - Fisica Sperimentale, perturbation theory: higher-order, higher-order: 1, 500, Monte Carlo [numerical calculations], ATLAS, 541, higher-order [perturbation theory], CERN LHC Coll, correlation, colliding beams [p p], numerical calculations: Monte Carlo, coupling constant [strong interaction], p p: colliding beams, 1 [higher-order], transverse energy, asymmetry, experimental results, ddc: ddc:500.2, ddc: ddc:530

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Determination of the strong coupling constant $\alpha_s$ from transverse energy-energy correlations in multijet events at $\sqrt{s} = 8$ TeV using the ATLAS detector

Determination of the strong coupling constant $\alpha_s$ from transverse energy-energy correlations in multijet events at $\sqrt{s} = 8$ TeV using the ATLAS detector

3 Research products, page 1 of 1

Determination of the strong coupling constant alpha(s) from transverse energy-energy correlations in multijet events at root s=8 TeV using the ATLAS detector

Determination of the strong coupling constant $\alpha _\mathrm {s}$ from transverse energy–energy correlations in multijet events at $\sqrt{s} = 8~\hbox {TeV}$ using the ATLAS detector

Determination of the Strong Coupling Constant αs in Multijet Production with the ATLAS Detector at the LHC