Identification of boosted, hadronically decaying W bosons and comparisons with ATLAS data taken at √s = 8 TeV

This paper reports a detailed study of techniques for identifying boosted, hadronically decaying W bosons using 20.3 fb (Formula presented.) of proton–proton collision data collected by the ATLAS detector at the LHC at a centre-of-mass energy (Formula presented.). A range of techniques for optimisin...

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Autor principal: Atlas Collaboration
Formato: JOUR
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_14346044_v76_n3_p_AtlasCollaboration
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling todo:paper_14346044_v76_n3_p_AtlasCollaboration2023-10-03T16:15:14Z Identification of boosted, hadronically decaying W bosons and comparisons with ATLAS data taken at √s = 8 TeV Atlas Collaboration This paper reports a detailed study of techniques for identifying boosted, hadronically decaying W bosons using 20.3 fb (Formula presented.) of proton–proton collision data collected by the ATLAS detector at the LHC at a centre-of-mass energy (Formula presented.). A range of techniques for optimising the signal jet mass resolution are combined with various jet substructure variables. The results of these studies in Monte Carlo simulations show that a simple pairwise combination of groomed jet mass and one substructure variable can provide a 50 % efficiency for identifying W bosons with transverse momenta larger than 200 GeV while maintaining multijet background efficiencies of 2–4 % for jets with the same transverse momentum. These signal and background efficiencies are confirmed in data for a selection of tagging techniques. © 2016, CERN for the benefit of 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_14346044_v76_n3_p_AtlasCollaboration
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
description This paper reports a detailed study of techniques for identifying boosted, hadronically decaying W bosons using 20.3 fb (Formula presented.) of proton–proton collision data collected by the ATLAS detector at the LHC at a centre-of-mass energy (Formula presented.). A range of techniques for optimising the signal jet mass resolution are combined with various jet substructure variables. The results of these studies in Monte Carlo simulations show that a simple pairwise combination of groomed jet mass and one substructure variable can provide a 50 % efficiency for identifying W bosons with transverse momenta larger than 200 GeV while maintaining multijet background efficiencies of 2–4 % for jets with the same transverse momentum. These signal and background efficiencies are confirmed in data for a selection of tagging techniques. © 2016, CERN for the benefit of the ATLAS collaboration.
format JOUR
author Atlas Collaboration
spellingShingle Atlas Collaboration
Identification of boosted, hadronically decaying W bosons and comparisons with ATLAS data taken at √s = 8 TeV
author_facet Atlas Collaboration
author_sort Atlas Collaboration
title Identification of boosted, hadronically decaying W bosons and comparisons with ATLAS data taken at √s = 8 TeV
title_short Identification of boosted, hadronically decaying W bosons and comparisons with ATLAS data taken at √s = 8 TeV
title_full Identification of boosted, hadronically decaying W bosons and comparisons with ATLAS data taken at √s = 8 TeV
title_fullStr Identification of boosted, hadronically decaying W bosons and comparisons with ATLAS data taken at √s = 8 TeV
title_full_unstemmed Identification of boosted, hadronically decaying W bosons and comparisons with ATLAS data taken at √s = 8 TeV
title_sort identification of boosted, hadronically decaying w bosons and comparisons with atlas data taken at √s = 8 tev
url http://hdl.handle.net/20.500.12110/paper_14346044_v76_n3_p_AtlasCollaboration
work_keys_str_mv AT atlascollaboration identificationofboostedhadronicallydecayingwbosonsandcomparisonswithatlasdatatakenats8tev
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