Search for heavy lepton resonances decaying to a Z boson and a lepton in pp collisions at (Formula presented.) = 8 TeV with the ATLAS detector

A search for heavy leptons decaying to a Z boson and an electron or a muon is presented. The search is based on pp collision data taken at (Formula presented.) = 8 TeV by the ATLAS experiment at the CERN Large Hadron Collider, corresponding to an integrated luminosity of 20.3 fb−1. Three high-transv...

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Autor principal: The ATLAS collaboration
Formato: JOUR
Materias:
Hadron-Hadron Scattering
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_11266708_v2015_n9_p_TheATLAScollaboration
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_11266708_v2015_n9_p_TheATLAScollaboration
record_format dspace
spelling todo:paper_11266708_v2015_n9_p_TheATLAScollaboration2023-10-03T16:07:24Z Search for heavy lepton resonances decaying to a Z boson and a lepton in pp collisions at (Formula presented.) = 8 TeV with the ATLAS detector The ATLAS collaboration Hadron-Hadron Scattering A search for heavy leptons decaying to a Z boson and an electron or a muon is presented. The search is based on pp collision data taken at (Formula presented.) = 8 TeV by the ATLAS experiment at the CERN Large Hadron Collider, corresponding to an integrated luminosity of 20.3 fb−1. Three high-transverse-momentum electrons or muons are selected, with two of them required to be consistent with originating from a Z boson decay. No significant excess above Standard Model background predictions is observed, and 95% confidence level limits on the production cross section of high-mass trilepton resonances are derived. The results are interpreted in the context of vector-like lepton and type-III seesaw models. For the vector-like lepton model, most heavy lepton mass values in the range 114–176 GeV are excluded. For the type-III seesaw model, most mass values in the range 100–468 GeV are excluded. © 2015, The Author(s). JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_11266708_v2015_n9_p_TheATLAScollaboration
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Hadron-Hadron Scattering
spellingShingle Hadron-Hadron Scattering
The ATLAS collaboration
Search for heavy lepton resonances decaying to a Z boson and a lepton in pp collisions at (Formula presented.) = 8 TeV with the ATLAS detector
topic_facet Hadron-Hadron Scattering
description A search for heavy leptons decaying to a Z boson and an electron or a muon is presented. The search is based on pp collision data taken at (Formula presented.) = 8 TeV by the ATLAS experiment at the CERN Large Hadron Collider, corresponding to an integrated luminosity of 20.3 fb−1. Three high-transverse-momentum electrons or muons are selected, with two of them required to be consistent with originating from a Z boson decay. No significant excess above Standard Model background predictions is observed, and 95% confidence level limits on the production cross section of high-mass trilepton resonances are derived. The results are interpreted in the context of vector-like lepton and type-III seesaw models. For the vector-like lepton model, most heavy lepton mass values in the range 114–176 GeV are excluded. For the type-III seesaw model, most mass values in the range 100–468 GeV are excluded. © 2015, The Author(s).
format JOUR
author The ATLAS collaboration
author_facet The ATLAS collaboration
author_sort The ATLAS collaboration
title Search for heavy lepton resonances decaying to a Z boson and a lepton in pp collisions at (Formula presented.) = 8 TeV with the ATLAS detector
title_short Search for heavy lepton resonances decaying to a Z boson and a lepton in pp collisions at (Formula presented.) = 8 TeV with the ATLAS detector
title_full Search for heavy lepton resonances decaying to a Z boson and a lepton in pp collisions at (Formula presented.) = 8 TeV with the ATLAS detector
title_fullStr Search for heavy lepton resonances decaying to a Z boson and a lepton in pp collisions at (Formula presented.) = 8 TeV with the ATLAS detector
title_full_unstemmed Search for heavy lepton resonances decaying to a Z boson and a lepton in pp collisions at (Formula presented.) = 8 TeV with the ATLAS detector
title_sort search for heavy lepton resonances decaying to a z boson and a lepton in pp collisions at (formula presented.) = 8 tev with the atlas detector
url http://hdl.handle.net/20.500.12110/paper_11266708_v2015_n9_p_TheATLAScollaboration
work_keys_str_mv AT theatlascollaboration searchforheavyleptonresonancesdecayingtoazbosonandaleptoninppcollisionsatformulapresented8tevwiththeatlasdetector
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