Search for supersymmetry in events with a lepton, a photon, and large missing transverse energy in pp collisions at root s=7 TeV

Many models of new physics, including versions of supersymmetry (SUSY), predict production of events with low missing transverse energy, electroweak gauge bosons, and many energetic final-state particles. The stealth SUSY model yields this signature while conserving R-parity by means of a new hidden...

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Principais autores: Chatrchyan, S, Khachatryan, V, Sirunyan, A, Tumasyan, A, Adam, W, Bergauer, T, Dragicevic, M, Eroe, J, Fabjan, C, Friedl, M, Fruehwirth, R, Ghete, V, Hammer, J, Haensel, S, Hoch, M, Hoermann, N, Hrubec, J, Jeitler, M, Kiesenhofer, W, Krammer, M, Liko, D, Mikulec, I, Pernicka, M, Rohringer, H, Schoefbeck, R
Formato: Journal article
Publicado em: 2011
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author Chatrchyan, S
Khachatryan, V
Sirunyan, A
Tumasyan, A
Adam, W
Bergauer, T
Dragicevic, M
Eroe, J
Fabjan, C
Friedl, M
Fruehwirth, R
Ghete, V
Hammer, J
Haensel, S
Hoch, M
Hoermann, N
Hrubec, J
Jeitler, M
Kiesenhofer, W
Krammer, M
Liko, D
Mikulec, I
Pernicka, M
Rohringer, H
Schoefbeck, R
author_facet Chatrchyan, S
Khachatryan, V
Sirunyan, A
Tumasyan, A
Adam, W
Bergauer, T
Dragicevic, M
Eroe, J
Fabjan, C
Friedl, M
Fruehwirth, R
Ghete, V
Hammer, J
Haensel, S
Hoch, M
Hoermann, N
Hrubec, J
Jeitler, M
Kiesenhofer, W
Krammer, M
Liko, D
Mikulec, I
Pernicka, M
Rohringer, H
Schoefbeck, R
author_sort Chatrchyan, S
collection OXFORD
description Many models of new physics, including versions of supersymmetry (SUSY), predict production of events with low missing transverse energy, electroweak gauge bosons, and many energetic final-state particles. The stealth SUSY model yields this signature while conserving R-parity by means of a new hidden sector in which SUSY is approximately conserved. The results of a general search for new physics, with no requirement on missing transverse energy, in events with two photons and four or more hadronic jets are reported. The study is based on a sample of proton-proton collisions at s=7TeV corresponding to 4.96fb-1 of integrated luminosity collected with the CMS detector in 2011. Based on good agreement between the data and the standard model expectation, the data are used to determine model-independent cross-section limits and a limit on the squark mass in the framework of stealth SUSY. With this first study of its kind, squark masses less than 1430 GeV are excluded at the 95% confidence level. © 2012 CERN.
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spelling oxford-uuid:78a802e1-5b41-4296-96c2-7eebb3775a0a2022-03-26T20:32:17ZSearch for supersymmetry in events with a lepton, a photon, and large missing transverse energy in pp collisions at root s=7 TeVJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:78a802e1-5b41-4296-96c2-7eebb3775a0aSymplectic Elements at Oxford2011Chatrchyan, SKhachatryan, VSirunyan, ATumasyan, AAdam, WBergauer, TDragicevic, MEroe, JFabjan, CFriedl, MFruehwirth, RGhete, VHammer, JHaensel, SHoch, MHoermann, NHrubec, JJeitler, MKiesenhofer, WKrammer, MLiko, DMikulec, IPernicka, MRohringer, HSchoefbeck, RMany models of new physics, including versions of supersymmetry (SUSY), predict production of events with low missing transverse energy, electroweak gauge bosons, and many energetic final-state particles. The stealth SUSY model yields this signature while conserving R-parity by means of a new hidden sector in which SUSY is approximately conserved. The results of a general search for new physics, with no requirement on missing transverse energy, in events with two photons and four or more hadronic jets are reported. The study is based on a sample of proton-proton collisions at s=7TeV corresponding to 4.96fb-1 of integrated luminosity collected with the CMS detector in 2011. Based on good agreement between the data and the standard model expectation, the data are used to determine model-independent cross-section limits and a limit on the squark mass in the framework of stealth SUSY. With this first study of its kind, squark masses less than 1430 GeV are excluded at the 95% confidence level. © 2012 CERN.
spellingShingle Chatrchyan, S
Khachatryan, V
Sirunyan, A
Tumasyan, A
Adam, W
Bergauer, T
Dragicevic, M
Eroe, J
Fabjan, C
Friedl, M
Fruehwirth, R
Ghete, V
Hammer, J
Haensel, S
Hoch, M
Hoermann, N
Hrubec, J
Jeitler, M
Kiesenhofer, W
Krammer, M
Liko, D
Mikulec, I
Pernicka, M
Rohringer, H
Schoefbeck, R
Search for supersymmetry in events with a lepton, a photon, and large missing transverse energy in pp collisions at root s=7 TeV
title Search for supersymmetry in events with a lepton, a photon, and large missing transverse energy in pp collisions at root s=7 TeV
title_full Search for supersymmetry in events with a lepton, a photon, and large missing transverse energy in pp collisions at root s=7 TeV
title_fullStr Search for supersymmetry in events with a lepton, a photon, and large missing transverse energy in pp collisions at root s=7 TeV
title_full_unstemmed Search for supersymmetry in events with a lepton, a photon, and large missing transverse energy in pp collisions at root s=7 TeV
title_short Search for supersymmetry in events with a lepton, a photon, and large missing transverse energy in pp collisions at root s=7 TeV
title_sort search for supersymmetry in events with a lepton a photon and large missing transverse energy in pp collisions at root s 7 tev
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