Search for high mass dilepton resonances in pp collisions at √s=7 TeV with the ATLAS experiment

This Letter presents a search for high mass e + e - or μ + μ - resonances in pp collisions at √s=7 TeV at the LHC. The data were recorded by the ATLAS experiment during 2010 and correspond to a total integrated luminosity of ~40 pb-1. No statistically significant excess above the Standard Model expe...

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Autor principal: Aad, G.
Formato: JOUR
Materias:
Dilepton
Grand unified theory
Mass spectrum
Narrow resonance
New gauge boson
Z'
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_03702693_v700_n3-4_p163_Aad
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_03702693_v700_n3-4_p163_Aad
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spelling todo:paper_03702693_v700_n3-4_p163_Aad2023-10-03T15:29:07Z Search for high mass dilepton resonances in pp collisions at √s=7 TeV with the ATLAS experiment Aad, G. Dilepton Grand unified theory Mass spectrum Narrow resonance New gauge boson Z' This Letter presents a search for high mass e + e - or μ + μ - resonances in pp collisions at √s=7 TeV at the LHC. The data were recorded by the ATLAS experiment during 2010 and correspond to a total integrated luminosity of ~40 pb-1. No statistically significant excess above the Standard Model expectation is observed in the search region of dilepton invariant mass above 110 GeV. Upper limits at the 95% confidence level are set on the cross section times branching ratio of Z' resonances decaying to dielectrons and dimuons as a function of the resonance mass. A lower mass limit of 1.048 TeV on the Sequential Standard Model Z' boson is derived, as well as mass limits on Z* and E 6 -motivated Z' models. © 2011 CERN. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_03702693_v700_n3-4_p163_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 Dilepton
Grand unified theory
Mass spectrum
Narrow resonance
New gauge boson
Z'
spellingShingle Dilepton
Grand unified theory
Mass spectrum
Narrow resonance
New gauge boson
Z'
Aad, G.
Search for high mass dilepton resonances in pp collisions at √s=7 TeV with the ATLAS experiment
topic_facet Dilepton
Grand unified theory
Mass spectrum
Narrow resonance
New gauge boson
Z'
description This Letter presents a search for high mass e + e - or μ + μ - resonances in pp collisions at √s=7 TeV at the LHC. The data were recorded by the ATLAS experiment during 2010 and correspond to a total integrated luminosity of ~40 pb-1. No statistically significant excess above the Standard Model expectation is observed in the search region of dilepton invariant mass above 110 GeV. Upper limits at the 95% confidence level are set on the cross section times branching ratio of Z' resonances decaying to dielectrons and dimuons as a function of the resonance mass. A lower mass limit of 1.048 TeV on the Sequential Standard Model Z' boson is derived, as well as mass limits on Z* and E 6 -motivated Z' models. © 2011 CERN.
format JOUR
author Aad, G.
author_facet Aad, G.
author_sort Aad, G.
title Search for high mass dilepton resonances in pp collisions at √s=7 TeV with the ATLAS experiment
title_short Search for high mass dilepton resonances in pp collisions at √s=7 TeV with the ATLAS experiment
title_full Search for high mass dilepton resonances in pp collisions at √s=7 TeV with the ATLAS experiment
title_fullStr Search for high mass dilepton resonances in pp collisions at √s=7 TeV with the ATLAS experiment
title_full_unstemmed Search for high mass dilepton resonances in pp collisions at √s=7 TeV with the ATLAS experiment
title_sort search for high mass dilepton resonances in pp collisions at √s=7 tev with the atlas experiment
url http://hdl.handle.net/20.500.12110/paper_03702693_v700_n3-4_p163_Aad
work_keys_str_mv AT aadg searchforhighmassdileptonresonancesinppcollisionsats7tevwiththeatlasexperiment
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