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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Guardado en:
Detalles Bibliográficos
Publicado: 2015
Materias:
Hadron-Hadron Scattering
Acceso en línea:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_11266708_v2015_n4_p1_TheATLAScollaboration
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 paper:paper_11266708_v2015_n4_p1_TheATLAScollaboration
record_format dspace
spelling paper:paper_11266708_v2015_n4_p1_TheATLAScollaboration2023-06-08T16:08:40Z Evidence for the Higgs-boson Yukawa coupling to tau leptons with the ATLAS detector 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). 2015 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_11266708_v2015_n4_p1_TheATLAScollaboration 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
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).
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
publishDate 2015
url https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_11266708_v2015_n4_p1_TheATLAScollaboration
http://hdl.handle.net/20.500.12110/paper_11266708_v2015_n4_p1_TheATLAScollaboration
_version_ 1768543289837879296

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