Measurements of charge and CP asymmetries in b-hadron decays using top-quark events collected by the ATLAS detector in pp collisions at √s=8 TeV

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Same- and opposite-sign charge asymmetries are measured in lepton+jets tt¯ events in which a b-hadron decays semileptonically to a soft muon, using data corresponding to an integrated luminosity of 20.3 fb −1 from proton-proton collisions at a centre-of-mass energy of s=√8 TeV collected with the ATL...

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Autor principal: The ATLAS collaboration
Formato: JOUR
Materias:
Hadron-Hadron scattering (experiments)
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_11266708_v2017_n2_p_TheATLAScollaboration
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_11266708_v2017_n2_p_TheATLAScollaboration
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spelling todo:paper_11266708_v2017_n2_p_TheATLAScollaboration2023-10-03T16:07:34Z Measurements of charge and CP asymmetries in b-hadron decays using top-quark events collected by the ATLAS detector in pp collisions at √s=8 TeV The ATLAS collaboration Hadron-Hadron scattering (experiments) Same- and opposite-sign charge asymmetries are measured in lepton+jets tt¯ events in which a b-hadron decays semileptonically to a soft muon, using data corresponding to an integrated luminosity of 20.3 fb −1 from proton-proton collisions at a centre-of-mass energy of s=√8 TeV collected with the ATLAS detector at the Large Hadron Collider at CERN. The charge asymmetries are based on the charge of the lepton from the top-quark decay and the charge of the soft muon from the semileptonic decay of a b-hadron and are measured in a fiducial region corresponding to the experimental acceptance. Four CP asymmetries (one mixing and three direct) are measured and are found to be compatible with zero and consistent with the Standard Model.[Figure not available: see fulltext.] © 2017, 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_v2017_n2_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 (experiments)
spellingShingle Hadron-Hadron scattering (experiments)
The ATLAS collaboration
Measurements of charge and CP asymmetries in b-hadron decays using top-quark events collected by the ATLAS detector in pp collisions at √s=8 TeV
topic_facet Hadron-Hadron scattering (experiments)
description Same- and opposite-sign charge asymmetries are measured in lepton+jets tt¯ events in which a b-hadron decays semileptonically to a soft muon, using data corresponding to an integrated luminosity of 20.3 fb −1 from proton-proton collisions at a centre-of-mass energy of s=√8 TeV collected with the ATLAS detector at the Large Hadron Collider at CERN. The charge asymmetries are based on the charge of the lepton from the top-quark decay and the charge of the soft muon from the semileptonic decay of a b-hadron and are measured in a fiducial region corresponding to the experimental acceptance. Four CP asymmetries (one mixing and three direct) are measured and are found to be compatible with zero and consistent with the Standard Model.[Figure not available: see fulltext.] © 2017, The Author(s).
format JOUR
author The ATLAS collaboration
author_facet The ATLAS collaboration
author_sort The ATLAS collaboration
title Measurements of charge and CP asymmetries in b-hadron decays using top-quark events collected by the ATLAS detector in pp collisions at √s=8 TeV
title_short Measurements of charge and CP asymmetries in b-hadron decays using top-quark events collected by the ATLAS detector in pp collisions at √s=8 TeV
title_full Measurements of charge and CP asymmetries in b-hadron decays using top-quark events collected by the ATLAS detector in pp collisions at √s=8 TeV
title_fullStr Measurements of charge and CP asymmetries in b-hadron decays using top-quark events collected by the ATLAS detector in pp collisions at √s=8 TeV
title_full_unstemmed Measurements of charge and CP asymmetries in b-hadron decays using top-quark events collected by the ATLAS detector in pp collisions at √s=8 TeV
title_sort measurements of charge and cp asymmetries in b-hadron decays using top-quark events collected by the atlas detector in pp collisions at √s=8 tev
url http://hdl.handle.net/20.500.12110/paper_11266708_v2017_n2_p_TheATLAScollaboration
work_keys_str_mv AT theatlascollaboration measurementsofchargeandcpasymmetriesinbhadrondecaysusingtopquarkeventscollectedbytheatlasdetectorinppcollisionsats8tev
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