Search for a heavy particle decaying into an electron and a muon with the ATLAS detector in √s=7TeV pp collisions at the LHC

This Letter presents the first search for a heavy particle decaying into an e±μss final state in √s=7TeV pp collisions at the LHC. The data were recorded by the ATLAS detector during 2010 and correspond to a total integrated luminosity of 35pb - 1. No excess above the standard model background expec...

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Autor principal: Aad, G.
Formato: JOUR
Materias:
Elementary particles
ATLAS detectors
Branching ratio
Confidence levels
Heavy particles
Integrated luminosity
Pp collisions
Supersymmetric models
The standard model
Tellurium compounds
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00319007_v106_n25_p_Aad
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_00319007_v106_n25_p_Aad
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spelling todo:paper_00319007_v106_n25_p_Aad2023-10-03T14:42:11Z Search for a heavy particle decaying into an electron and a muon with the ATLAS detector in √s=7TeV pp collisions at the LHC Aad, G. Elementary particles ATLAS detectors Branching ratio Confidence levels Heavy particles Integrated luminosity Pp collisions Supersymmetric models The standard model Tellurium compounds This Letter presents the first search for a heavy particle decaying into an e±μss final state in √s=7TeV pp collisions at the LHC. The data were recorded by the ATLAS detector during 2010 and correspond to a total integrated luminosity of 35pb - 1. No excess above the standard model background expectation is observed. Exclusions at 95% confidence level are placed on two representative models. In an R-parity violating supersymmetric model, tau sneutrinos with a mass below 0.75 TeV are excluded, assuming all R-parity violating couplings are zero except λ311′=0.11 and λ 312 =0.07. In a lepton flavor violating model, a Z′-like vector boson with masses of 0.70-1.00 TeV and corresponding cross sections times branching ratios of 0.175-0.183 pb is excluded. These results extend to higher mass R-parity violating sneutrinos and lepton flavor violating Z's than previous constraints from the Tevatron. © 2011 American Physical Society. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00319007_v106_n25_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)
topic Elementary particles
ATLAS detectors
Branching ratio
Confidence levels
Heavy particles
Integrated luminosity
Pp collisions
Supersymmetric models
The standard model
Tellurium compounds
spellingShingle Elementary particles
ATLAS detectors
Branching ratio
Confidence levels
Heavy particles
Integrated luminosity
Pp collisions
Supersymmetric models
The standard model
Tellurium compounds
Aad, G.
Search for a heavy particle decaying into an electron and a muon with the ATLAS detector in √s=7TeV pp collisions at the LHC
topic_facet Elementary particles
ATLAS detectors
Branching ratio
Confidence levels
Heavy particles
Integrated luminosity
Pp collisions
Supersymmetric models
The standard model
Tellurium compounds
description This Letter presents the first search for a heavy particle decaying into an e±μss final state in √s=7TeV pp collisions at the LHC. The data were recorded by the ATLAS detector during 2010 and correspond to a total integrated luminosity of 35pb - 1. No excess above the standard model background expectation is observed. Exclusions at 95% confidence level are placed on two representative models. In an R-parity violating supersymmetric model, tau sneutrinos with a mass below 0.75 TeV are excluded, assuming all R-parity violating couplings are zero except λ311′=0.11 and λ 312 =0.07. In a lepton flavor violating model, a Z′-like vector boson with masses of 0.70-1.00 TeV and corresponding cross sections times branching ratios of 0.175-0.183 pb is excluded. These results extend to higher mass R-parity violating sneutrinos and lepton flavor violating Z's than previous constraints from the Tevatron. © 2011 American Physical Society.
format JOUR
author Aad, G.
author_facet Aad, G.
author_sort Aad, G.
title Search for a heavy particle decaying into an electron and a muon with the ATLAS detector in √s=7TeV pp collisions at the LHC
title_short Search for a heavy particle decaying into an electron and a muon with the ATLAS detector in √s=7TeV pp collisions at the LHC
title_full Search for a heavy particle decaying into an electron and a muon with the ATLAS detector in √s=7TeV pp collisions at the LHC
title_fullStr Search for a heavy particle decaying into an electron and a muon with the ATLAS detector in √s=7TeV pp collisions at the LHC
title_full_unstemmed Search for a heavy particle decaying into an electron and a muon with the ATLAS detector in √s=7TeV pp collisions at the LHC
title_sort search for a heavy particle decaying into an electron and a muon with the atlas detector in √s=7tev pp collisions at the lhc
url http://hdl.handle.net/20.500.12110/paper_00319007_v106_n25_p_Aad
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