Search for tb resonances in proton-proton collisions at √s=7TeV with the ATLAS detector

This Letter presents a search for tb resonances in 1.04fb - 1 of LHC proton-proton collision data collected by the ATLAS detector at a center-of-mass energy of 7 TeV. Events with a lepton, missing transverse momentum, and two jets are selected and the invariant mass of the corresponding final state...

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Autor principal: Aad, G.
Formato: JOUR
Materias:
ATLAS detectors
Benchmark models
Branching ratio
Center-of-mass energies
Cross section
Final state
Invariant mass
Invariant mass distribution
Lower bounds
Proton proton collisions
Standard model
Transverse momenta
Upper limits
High energy physics
Resonance
Tellurium compounds
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00319007_v109_n8_p_Aad
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_00319007_v109_n8_p_Aad
record_format dspace
spelling todo:paper_00319007_v109_n8_p_Aad2023-10-03T14:42:22Z Search for tb resonances in proton-proton collisions at √s=7TeV with the ATLAS detector Aad, G. ATLAS detectors Benchmark models Branching ratio Center-of-mass energies Cross section Final state Invariant mass Invariant mass distribution Lower bounds Proton proton collisions Standard model Transverse momenta Upper limits High energy physics Resonance Tellurium compounds This Letter presents a search for tb resonances in 1.04fb - 1 of LHC proton-proton collision data collected by the ATLAS detector at a center-of-mass energy of 7 TeV. Events with a lepton, missing transverse momentum, and two jets are selected and the invariant mass of the corresponding final state is reconstructed. The search exploits the shape of the tb invariant mass distribution compared to the expected standard model backgrounds. The model of a right-handed WR′ with standard model-like couplings is chosen as the benchmark model for this search. No statistically significant excess of events is observed in the data, and upper limits on the cross section times the branching ratio of WR′ resonances at 95% C.L. lie in the range of 6.1-1.0 pb for WR′ masses ranging from 0.5 to 2.0 TeV. These limits are translated into a lower bound on the allowed right-handed WR′ mass, giving m WR′ >1.13TeV at 95% C.L. © 2012 CERN. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00319007_v109_n8_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 ATLAS detectors
Benchmark models
Branching ratio
Center-of-mass energies
Cross section
Final state
Invariant mass
Invariant mass distribution
Lower bounds
Proton proton collisions
Standard model
Transverse momenta
Upper limits
High energy physics
Resonance
Tellurium compounds
spellingShingle ATLAS detectors
Benchmark models
Branching ratio
Center-of-mass energies
Cross section
Final state
Invariant mass
Invariant mass distribution
Lower bounds
Proton proton collisions
Standard model
Transverse momenta
Upper limits
High energy physics
Resonance
Tellurium compounds
Aad, G.
Search for tb resonances in proton-proton collisions at √s=7TeV with the ATLAS detector
topic_facet ATLAS detectors
Benchmark models
Branching ratio
Center-of-mass energies
Cross section
Final state
Invariant mass
Invariant mass distribution
Lower bounds
Proton proton collisions
Standard model
Transverse momenta
Upper limits
High energy physics
Resonance
Tellurium compounds
description This Letter presents a search for tb resonances in 1.04fb - 1 of LHC proton-proton collision data collected by the ATLAS detector at a center-of-mass energy of 7 TeV. Events with a lepton, missing transverse momentum, and two jets are selected and the invariant mass of the corresponding final state is reconstructed. The search exploits the shape of the tb invariant mass distribution compared to the expected standard model backgrounds. The model of a right-handed WR′ with standard model-like couplings is chosen as the benchmark model for this search. No statistically significant excess of events is observed in the data, and upper limits on the cross section times the branching ratio of WR′ resonances at 95% C.L. lie in the range of 6.1-1.0 pb for WR′ masses ranging from 0.5 to 2.0 TeV. These limits are translated into a lower bound on the allowed right-handed WR′ mass, giving m WR′ >1.13TeV at 95% C.L. © 2012 CERN.
format JOUR
author Aad, G.
author_facet Aad, G.
author_sort Aad, G.
title Search for tb resonances in proton-proton collisions at √s=7TeV with the ATLAS detector
title_short Search for tb resonances in proton-proton collisions at √s=7TeV with the ATLAS detector
title_full Search for tb resonances in proton-proton collisions at √s=7TeV with the ATLAS detector
title_fullStr Search for tb resonances in proton-proton collisions at √s=7TeV with the ATLAS detector
title_full_unstemmed Search for tb resonances in proton-proton collisions at √s=7TeV with the ATLAS detector
title_sort search for tb resonances in proton-proton collisions at √s=7tev with the atlas detector
url http://hdl.handle.net/20.500.12110/paper_00319007_v109_n8_p_Aad
work_keys_str_mv AT aadg searchfortbresonancesinprotonprotoncollisionsats7tevwiththeatlasdetector
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