Measurements of four-lepton production at the Z resonance in pp collisions at s =7 and 8 TeV with ATLAS

Measurements of four-lepton (4, =e,μ) production cross sections at the Z resonance in pp collisions at the LHC with the ATLAS detector are presented. For dilepton and four-lepton invariant mass regions m+->5GeV and 80<m4<100GeV, the measured cross sections are 76±18(stat) ±4(syst)±1.4(lumi)...

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Autor principal: Aad, G.
Formato: JOUR
Materias:
Bosons
Tellurium compounds
ATLAS detectors
Branching fractions
Invariant mass
Lepton productions
Measurements of
Nonresonant
Production cross section
The standard model
Elementary particles
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00319007_v112_n23_p_Aad
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_00319007_v112_n23_p_Aad
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spelling todo:paper_00319007_v112_n23_p_Aad2023-10-03T14:42:30Z Measurements of four-lepton production at the Z resonance in pp collisions at s =7 and 8 TeV with ATLAS Aad, G. Bosons Tellurium compounds ATLAS detectors Branching fractions Invariant mass Lepton productions Measurements of Nonresonant Production cross section The standard model Elementary particles Measurements of four-lepton (4, =e,μ) production cross sections at the Z resonance in pp collisions at the LHC with the ATLAS detector are presented. For dilepton and four-lepton invariant mass regions m+->5GeV and 80<m4<100GeV, the measured cross sections are 76±18(stat) ±4(syst)±1.4(lumi)fb and 107±9(stat)±4(syst) ±3.0(lumi)fb at s=7 and 8 TeV, respectively. By subtracting the nonresonant 4 production contributions and normalizing with Z→μ+μ- events, the branching fraction for the Z boson decay to 4 is determined to be (3.20±0.25(stat)±0.13(syst))×10-6, consistent with the standard model prediction. © 2014 CERN, for the ATLAS Collaboration. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00319007_v112_n23_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 Bosons
Tellurium compounds
ATLAS detectors
Branching fractions
Invariant mass
Lepton productions
Measurements of
Nonresonant
Production cross section
The standard model
Elementary particles
spellingShingle Bosons
Tellurium compounds
ATLAS detectors
Branching fractions
Invariant mass
Lepton productions
Measurements of
Nonresonant
Production cross section
The standard model
Elementary particles
Aad, G.
Measurements of four-lepton production at the Z resonance in pp collisions at s =7 and 8 TeV with ATLAS
topic_facet Bosons
Tellurium compounds
ATLAS detectors
Branching fractions
Invariant mass
Lepton productions
Measurements of
Nonresonant
Production cross section
The standard model
Elementary particles
description Measurements of four-lepton (4, =e,μ) production cross sections at the Z resonance in pp collisions at the LHC with the ATLAS detector are presented. For dilepton and four-lepton invariant mass regions m+->5GeV and 80<m4<100GeV, the measured cross sections are 76±18(stat) ±4(syst)±1.4(lumi)fb and 107±9(stat)±4(syst) ±3.0(lumi)fb at s=7 and 8 TeV, respectively. By subtracting the nonresonant 4 production contributions and normalizing with Z→μ+μ- events, the branching fraction for the Z boson decay to 4 is determined to be (3.20±0.25(stat)±0.13(syst))×10-6, consistent with the standard model prediction. © 2014 CERN, for the ATLAS Collaboration.
format JOUR
author Aad, G.
author_facet Aad, G.
author_sort Aad, G.
title Measurements of four-lepton production at the Z resonance in pp collisions at s =7 and 8 TeV with ATLAS
title_short Measurements of four-lepton production at the Z resonance in pp collisions at s =7 and 8 TeV with ATLAS
title_full Measurements of four-lepton production at the Z resonance in pp collisions at s =7 and 8 TeV with ATLAS
title_fullStr Measurements of four-lepton production at the Z resonance in pp collisions at s =7 and 8 TeV with ATLAS
title_full_unstemmed Measurements of four-lepton production at the Z resonance in pp collisions at s =7 and 8 TeV with ATLAS
title_sort measurements of four-lepton production at the z resonance in pp collisions at s =7 and 8 tev with atlas
url http://hdl.handle.net/20.500.12110/paper_00319007_v112_n23_p_Aad
work_keys_str_mv AT aadg measurementsoffourleptonproductionatthezresonanceinppcollisionsats7and8tevwithatlas
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