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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Detalles Bibliográficos
Publicado: 2011
Materias:
Dilepton
Grand unified theory
Mass spectrum
Narrow resonance
New gauge boson
Z'
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03702693_v700_n3-4_p163_Aad
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 paper:paper_03702693_v700_n3-4_p163_Aad
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spelling paper:paper_03702693_v700_n3-4_p163_Aad2023-06-08T15:36:52Z Search for high mass dilepton resonances in pp collisions at √s=7 TeV with the ATLAS experiment 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. 2011 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03702693_v700_n3-4_p163_Aad 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'
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.
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
publishDate 2011
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03702693_v700_n3-4_p163_Aad
http://hdl.handle.net/20.500.12110/paper_03702693_v700_n3-4_p163_Aad
_version_ 1768542741519663104

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