Searches for heavy long-lived sleptons and R-hadrons with the ATLAS detector in pp collisions at √s=7 TeV

A search for long-lived particles is performed using a data sample of 4.7 fb −1 from proton–proton collisions at a centre-of-mass energy s=7 TeV collected by the ATLAS detector at the LHC. No excess is observed above the estimated background and lower limits, at 95% confidence level, are set on the...

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Autor principal: Aad, G.
Formato: JOUR
Materias:
ATLAS
GMSB
LHC
Long-lived
R-hadron
Slepton
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_03702693_v720_n4-5_p277_Aad
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_03702693_v720_n4-5_p277_Aad
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spelling todo:paper_03702693_v720_n4-5_p277_Aad2023-10-03T15:29:29Z Searches for heavy long-lived sleptons and R-hadrons with the ATLAS detector in pp collisions at √s=7 TeV Aad, G. ATLAS GMSB LHC Long-lived R-hadron Slepton A search for long-lived particles is performed using a data sample of 4.7 fb −1 from proton–proton collisions at a centre-of-mass energy s=7 TeV collected by the ATLAS detector at the LHC. No excess is observed above the estimated background and lower limits, at 95% confidence level, are set on the mass of the long-lived particles in different scenarios, based on their possible interactions in the inner detector, the calorimeters and the muon spectrometer. Long-lived staus in gauge-mediated SUSY-breaking models are excluded up to a mass of 300 GeV for tanβ=5–20. Directly produced long-lived sleptons are excluded up to a mass of 278 GeV. R-hadrons, composites of gluino (stop, sbottom) and light quarks, are excluded up to a mass of 985 GeV (683 GeV, 612 GeV) when using a generic interaction model. Additionally two sets of limits on R-hadrons are obtained that are less sensitive to the interaction model for R-hadrons. One set of limits is obtained using only the inner detector and calorimeter observables, and a second set of limits is obtained based on the inner detector alone. © 2013 CERN JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_03702693_v720_n4-5_p277_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
GMSB
LHC
Long-lived
R-hadron
Slepton
spellingShingle ATLAS
GMSB
LHC
Long-lived
R-hadron
Slepton
Aad, G.
Searches for heavy long-lived sleptons and R-hadrons with the ATLAS detector in pp collisions at √s=7 TeV
topic_facet ATLAS
GMSB
LHC
Long-lived
R-hadron
Slepton
description A search for long-lived particles is performed using a data sample of 4.7 fb −1 from proton–proton collisions at a centre-of-mass energy s=7 TeV collected by the ATLAS detector at the LHC. No excess is observed above the estimated background and lower limits, at 95% confidence level, are set on the mass of the long-lived particles in different scenarios, based on their possible interactions in the inner detector, the calorimeters and the muon spectrometer. Long-lived staus in gauge-mediated SUSY-breaking models are excluded up to a mass of 300 GeV for tanβ=5–20. Directly produced long-lived sleptons are excluded up to a mass of 278 GeV. R-hadrons, composites of gluino (stop, sbottom) and light quarks, are excluded up to a mass of 985 GeV (683 GeV, 612 GeV) when using a generic interaction model. Additionally two sets of limits on R-hadrons are obtained that are less sensitive to the interaction model for R-hadrons. One set of limits is obtained using only the inner detector and calorimeter observables, and a second set of limits is obtained based on the inner detector alone. © 2013 CERN
format JOUR
author Aad, G.
author_facet Aad, G.
author_sort Aad, G.
title Searches for heavy long-lived sleptons and R-hadrons with the ATLAS detector in pp collisions at √s=7 TeV
title_short Searches for heavy long-lived sleptons and R-hadrons with the ATLAS detector in pp collisions at √s=7 TeV
title_full Searches for heavy long-lived sleptons and R-hadrons with the ATLAS detector in pp collisions at √s=7 TeV
title_fullStr Searches for heavy long-lived sleptons and R-hadrons with the ATLAS detector in pp collisions at √s=7 TeV
title_full_unstemmed Searches for heavy long-lived sleptons and R-hadrons with the ATLAS detector in pp collisions at √s=7 TeV
title_sort searches for heavy long-lived sleptons and r-hadrons with the atlas detector in pp collisions at √s=7 tev
url http://hdl.handle.net/20.500.12110/paper_03702693_v720_n4-5_p277_Aad
work_keys_str_mv AT aadg searchesforheavylonglivedsleptonsandrhadronswiththeatlasdetectorinppcollisionsats7tev
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