Further search for supersymmetry at √s=7TeV in final states with jets, missing transverse momentum, and isolated leptons with the ATLAS detector

This work presents a new inclusive search for supersymmetry (SUSY) by the ATLAS experiment at the LHC in proton-proton collisions at a center-of-mass energy √s=7TeV in final states with jets, missing transverse momentum and one or more isolated electrons and/or muons. The search is based on data fro...

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Publicado: 2012
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15507998_v86_n9_p_Aad
http://hdl.handle.net/20.500.12110/paper_15507998_v86_n9_p_Aad
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spelling paper:paper_15507998_v86_n9_p_Aad2023-06-08T16:22:34Z Further search for supersymmetry at √s=7TeV in final states with jets, missing transverse momentum, and isolated leptons with the ATLAS detector This work presents a new inclusive search for supersymmetry (SUSY) by the ATLAS experiment at the LHC in proton-proton collisions at a center-of-mass energy √s=7TeV in final states with jets, missing transverse momentum and one or more isolated electrons and/or muons. The search is based on data from the full 2011 data-taking period, corresponding to an integrated luminosity of 4.7fb - 1. Single-lepton and multilepton channels are treated together in one analysis. An increase in sensitivity is obtained by simultaneously fitting the number of events in statistically independent signal regions, and the shapes of distributions within those regions. A dedicated signal region is introduced to be sensitive to decay cascades of SUSY particles with small mass differences ("compressed SUSY"). Background uncertainties are constrained by fitting to the jet-multiplicity distribution in background control regions. Observations are consistent with Standard Model expectations, and limits are set or extended on a number of SUSY models. © 2012 CERN. 2012 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15507998_v86_n9_p_Aad http://hdl.handle.net/20.500.12110/paper_15507998_v86_n9_p_Aad
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description This work presents a new inclusive search for supersymmetry (SUSY) by the ATLAS experiment at the LHC in proton-proton collisions at a center-of-mass energy √s=7TeV in final states with jets, missing transverse momentum and one or more isolated electrons and/or muons. The search is based on data from the full 2011 data-taking period, corresponding to an integrated luminosity of 4.7fb - 1. Single-lepton and multilepton channels are treated together in one analysis. An increase in sensitivity is obtained by simultaneously fitting the number of events in statistically independent signal regions, and the shapes of distributions within those regions. A dedicated signal region is introduced to be sensitive to decay cascades of SUSY particles with small mass differences ("compressed SUSY"). Background uncertainties are constrained by fitting to the jet-multiplicity distribution in background control regions. Observations are consistent with Standard Model expectations, and limits are set or extended on a number of SUSY models. © 2012 CERN.
title Further search for supersymmetry at √s=7TeV in final states with jets, missing transverse momentum, and isolated leptons with the ATLAS detector
spellingShingle Further search for supersymmetry at √s=7TeV in final states with jets, missing transverse momentum, and isolated leptons with the ATLAS detector
title_short Further search for supersymmetry at √s=7TeV in final states with jets, missing transverse momentum, and isolated leptons with the ATLAS detector
title_full Further search for supersymmetry at √s=7TeV in final states with jets, missing transverse momentum, and isolated leptons with the ATLAS detector
title_fullStr Further search for supersymmetry at √s=7TeV in final states with jets, missing transverse momentum, and isolated leptons with the ATLAS detector
title_full_unstemmed Further search for supersymmetry at √s=7TeV in final states with jets, missing transverse momentum, and isolated leptons with the ATLAS detector
title_sort further search for supersymmetry at √s=7tev in final states with jets, missing transverse momentum, and isolated leptons with the atlas detector
publishDate 2012
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_15507998_v86_n9_p_Aad
http://hdl.handle.net/20.500.12110/paper_15507998_v86_n9_p_Aad
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