Evidence for the Higgs-boson Yukawa coupling to tau leptons with the ATLAS detector

Abstract: Results of a search for H → ττ decays are presented, based on the full set of proton-proton collision data recorded by the ATLAS experiment at the LHC during 2011 and 2012. The data correspond to integrated luminosities of 4.5 fb−1 and 20.3 fb−1 at centre-of-mass energies of √s = 7 TeV and...

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Detalles Bibliográficos
Autor principal: The ATLAS collaboration
Formato: JOUR
Materias:
Hadron-Hadron Scattering
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_11266708_v2015_n4_p1_TheATLAScollaboration
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_11266708_v2015_n4_p1_TheATLAScollaboration
record_format dspace
spelling todo:paper_11266708_v2015_n4_p1_TheATLAScollaboration2023-10-03T16:07:20Z Evidence for the Higgs-boson Yukawa coupling to tau leptons with the ATLAS detector The ATLAS collaboration Hadron-Hadron Scattering Abstract: Results of a search for H → ττ decays are presented, based on the full set of proton-proton collision data recorded by the ATLAS experiment at the LHC during 2011 and 2012. The data correspond to integrated luminosities of 4.5 fb−1 and 20.3 fb−1 at centre-of-mass energies of √s = 7 TeV and √s = 8 TeV respectively. All combinations of leptonic (τ→ℓνν¯ with ℓ = e, μ) and hadronic (τ → hadrons ν) tau decays are considered. An excess of events over the expected background from other Standard Model processes is found with an observed (expected) significance of 4.5 (3.4) standard deviations. This excess provides evidence for the direct coupling of the recently discovered Higgs boson to fermions. The measured signal strength, normalised to the Standard Model expectation, of μ = 1. 43<inf>− 0.37</inf>+ 0.43 is consistent with the predicted Yukawa coupling strength in the Standard Model.[Figure not available: see fulltext.] © 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_n4_p1_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
Evidence for the Higgs-boson Yukawa coupling to tau leptons with the ATLAS detector
topic_facet Hadron-Hadron Scattering
description Abstract: Results of a search for H → ττ decays are presented, based on the full set of proton-proton collision data recorded by the ATLAS experiment at the LHC during 2011 and 2012. The data correspond to integrated luminosities of 4.5 fb−1 and 20.3 fb−1 at centre-of-mass energies of √s = 7 TeV and √s = 8 TeV respectively. All combinations of leptonic (τ→ℓνν¯ with ℓ = e, μ) and hadronic (τ → hadrons ν) tau decays are considered. An excess of events over the expected background from other Standard Model processes is found with an observed (expected) significance of 4.5 (3.4) standard deviations. This excess provides evidence for the direct coupling of the recently discovered Higgs boson to fermions. The measured signal strength, normalised to the Standard Model expectation, of μ = 1. 43<inf>− 0.37</inf>+ 0.43 is consistent with the predicted Yukawa coupling strength in the Standard Model.[Figure not available: see fulltext.] © 2015, The Author(s).
format JOUR
author The ATLAS collaboration
author_facet The ATLAS collaboration
author_sort The ATLAS collaboration
title Evidence for the Higgs-boson Yukawa coupling to tau leptons with the ATLAS detector
title_short Evidence for the Higgs-boson Yukawa coupling to tau leptons with the ATLAS detector
title_full Evidence for the Higgs-boson Yukawa coupling to tau leptons with the ATLAS detector
title_fullStr Evidence for the Higgs-boson Yukawa coupling to tau leptons with the ATLAS detector
title_full_unstemmed Evidence for the Higgs-boson Yukawa coupling to tau leptons with the ATLAS detector
title_sort evidence for the higgs-boson yukawa coupling to tau leptons with the atlas detector
url http://hdl.handle.net/20.500.12110/paper_11266708_v2015_n4_p1_TheATLAScollaboration
work_keys_str_mv AT theatlascollaboration evidenceforthehiggsbosonyukawacouplingtotauleptonswiththeatlasdetector
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