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Search for Dark Matter in Events with Missing Transverse Momentum and a Higgs Boson Decaying to Two Photons inppCollisions ats=8 TeVwith the ATLAS Detector

البحث عن المادة المظلمة في الأحداث ذات الزخم المستعرض المفقود وبوزون هيغز يتحلل إلى فوتونين داخليين تصادمات ATS=8 TeV مع كاشف أطلس
Authors: Georges Aad; B. Abbott; J. Abdallah; O. Abdinov; R. Aben; M. Abolins; O. S. AbouZeid; +92 Authors

Search for Dark Matter in Events with Missing Transverse Momentum and a Higgs Boson Decaying to Two Photons inppCollisions ats=8 TeVwith the ATLAS Detector

Abstract

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.

Keywords

Nuclear and High Energy Physics, History, Higgs boson, Nuclear physics, ATLAS experiment, Astrophysics, Quantum mechanics, Electron, Lepton, Particle Dark Matter and Detection Methods, Luminosity, Dark matter, Boson, Cosmological Parameters and Dark Energy, Particle Physics and High-Energy Collider Experiments, High-Energy Collider, Biology, Physics, Missing energy, Particle physics, Paleontology, Astronomy and Astrophysics, Standard Model (mathematical formulation), Physics beyond the Standard Model, Atlas (anatomy), Photon, Gauge (firearms), Galaxy, Direct Detection, Physics and Astronomy, Large Hadron Collider, Archaeology, Physical Sciences

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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
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