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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Publicado: 2016
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14346044_v76_n3_p_AtlasCollaboration
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
id paper:paper_14346044_v76_n3_p_AtlasCollaboration
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spelling paper:paper_14346044_v76_n3_p_AtlasCollaboration2023-06-08T16:15:11Z 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 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. 2016 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14346044_v76_n3_p_AtlasCollaboration 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.
title Identification of boosted, hadronically decaying W bosons and comparisons with ATLAS data taken at √s = 8 TeV
spellingShingle 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
publishDate 2016
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14346044_v76_n3_p_AtlasCollaboration
http://hdl.handle.net/20.500.12110/paper_14346044_v76_n3_p_AtlasCollaboration
_version_ 1768543148849496064

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