Search for a fermiophobic Higgs boson in the diphoton decay channel with the ATLAS detector

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A search for a fermiophobic Higgs boson using diphoton events produced in proton-proton collisions at a centre-of-mass energy of √s = 7 TeV is performed using data corresponding to an integrated luminosity of 4.9 fb −1 collected by the ATLAS experiment at the Large Hadron Collider. A specific benchm...

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Autor principal: The ATLAS Collaboration
Formato: JOUR
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_14346044_v72_n9_p_TheATLASCollaboration
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_14346044_v72_n9_p_TheATLASCollaboration
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spelling todo:paper_14346044_v72_n9_p_TheATLASCollaboration2023-10-03T16:14:50Z Search for a fermiophobic Higgs boson in the diphoton decay channel with the ATLAS detector The ATLAS Collaboration A search for a fermiophobic Higgs boson using diphoton events produced in proton-proton collisions at a centre-of-mass energy of √s = 7 TeV is performed using data corresponding to an integrated luminosity of 4.9 fb −1 collected by the ATLAS experiment at the Large Hadron Collider. A specific benchmark model is considered where all the fermion couplings to the Higgs boson are set to zero and the bosonic couplings are kept at the Standard Model values (fermiophobic Higgs model). The largest excess with respect to the background-only hypothesis is found at 125.5 GeV, with a local significance of 2.9 standard deviations, which reduces to 1.6 standard deviations when taking into account the look-elsewhere effect. The data exclude the fermiophobic Higgs model in the ranges 110.0–118.0 GeV and 119.5–121.0 GeV at 95 % confidence level. © 2012, 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_v72_n9_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)
description A search for a fermiophobic Higgs boson using diphoton events produced in proton-proton collisions at a centre-of-mass energy of √s = 7 TeV is performed using data corresponding to an integrated luminosity of 4.9 fb −1 collected by the ATLAS experiment at the Large Hadron Collider. A specific benchmark model is considered where all the fermion couplings to the Higgs boson are set to zero and the bosonic couplings are kept at the Standard Model values (fermiophobic Higgs model). The largest excess with respect to the background-only hypothesis is found at 125.5 GeV, with a local significance of 2.9 standard deviations, which reduces to 1.6 standard deviations when taking into account the look-elsewhere effect. The data exclude the fermiophobic Higgs model in the ranges 110.0–118.0 GeV and 119.5–121.0 GeV at 95 % confidence level. © 2012, CERN for the benefit of the ATLAS collaboration.
format JOUR
author The ATLAS Collaboration
spellingShingle The ATLAS Collaboration
Search for a fermiophobic Higgs boson in the diphoton decay channel with the ATLAS detector
author_facet The ATLAS Collaboration
author_sort The ATLAS Collaboration
title Search for a fermiophobic Higgs boson in the diphoton decay channel with the ATLAS detector
title_short Search for a fermiophobic Higgs boson in the diphoton decay channel with the ATLAS detector
title_full Search for a fermiophobic Higgs boson in the diphoton decay channel with the ATLAS detector
title_fullStr Search for a fermiophobic Higgs boson in the diphoton decay channel with the ATLAS detector
title_full_unstemmed Search for a fermiophobic Higgs boson in the diphoton decay channel with the ATLAS detector
title_sort search for a fermiophobic higgs boson in the diphoton decay channel with the atlas detector
url http://hdl.handle.net/20.500.12110/paper_14346044_v72_n9_p_TheATLASCollaboration
work_keys_str_mv AT theatlascollaboration searchforafermiophobichiggsbosoninthediphotondecaychannelwiththeatlasdetector
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