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Composite Higgs Search at the LHC

The Higgs boson production cross-sections and decay rates depend, within the Standard Model (SM), on a single unknown parameter, the Higgs mass. In composite Higgs models where the Higgs boson emerges as a pseudo-Goldstone boson from a strongly-interacting sector, additional parameters control the H...

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Detalles Bibliográficos
Autores principales: Espinosa, J.R., Grojean, C., Muhlleitner, M.
Formato: info:eu-repo/semantics/article
Lenguaje:eng
Publicado: JHEP 2010
Materias:
Acceso en línea:https://dx.doi.org/10.1007/JHEP05(2010)065
http://cds.cern.ch/record/1249579
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author Espinosa, J.R.
Grojean, C.
Muhlleitner, M.
author_facet Espinosa, J.R.
Grojean, C.
Muhlleitner, M.
author_sort Espinosa, J.R.
collection CERN
description The Higgs boson production cross-sections and decay rates depend, within the Standard Model (SM), on a single unknown parameter, the Higgs mass. In composite Higgs models where the Higgs boson emerges as a pseudo-Goldstone boson from a strongly-interacting sector, additional parameters control the Higgs properties which then deviate from the SM ones. These deviations modify the LEP and Tevatron exclusion bounds and significantly affect the searches for the Higgs boson at the LHC. In some cases, all the Higgs couplings are reduced, which results in deterioration of the Higgs searches but the deviations of the Higgs couplings can also allow for an enhancement of the gluon-fusion production channel, leading to higher statistical significances. The search in the H to gamma gamma channel can also be substantially improved due to an enhancement of the branching fraction for the decay of the Higgs boson into a pair of photons.
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spelling cern-12495792023-03-14T19:43:59Z doi:10.1007/JHEP05(2010)065 http://cds.cern.ch/record/1249579 eng Espinosa, J.R. Grojean, C. Muhlleitner, M. Composite Higgs Search at the LHC Particle Physics - Phenomenology The Higgs boson production cross-sections and decay rates depend, within the Standard Model (SM), on a single unknown parameter, the Higgs mass. In composite Higgs models where the Higgs boson emerges as a pseudo-Goldstone boson from a strongly-interacting sector, additional parameters control the Higgs properties which then deviate from the SM ones. These deviations modify the LEP and Tevatron exclusion bounds and significantly affect the searches for the Higgs boson at the LHC. In some cases, all the Higgs couplings are reduced, which results in deterioration of the Higgs searches but the deviations of the Higgs couplings can also allow for an enhancement of the gluon-fusion production channel, leading to higher statistical significances. The search in the H to gamma gamma channel can also be substantially improved due to an enhancement of the branching fraction for the decay of the Higgs boson into a pair of photons. The Higgs boson production cross-sections and decay rates depend, within the Standard Model (SM), on a single unknown parameter, the Higgs mass. In composite Higgs models where the Higgs boson emerges as a pseudo-Goldstone boson from a strongly-interacting sector, additional parameters control the Higgs properties which then deviate from the SM ones. These deviations modify the LEP and Tevatron exclusion bounds and significantly affect the searches for the Higgs boson at the LHC. In some cases, all the Higgs couplings are reduced, which results in deterioration of the Higgs searches but the deviations of the Higgs couplings can also allow for an enhancement of the gluon-fusion production channel, leading to higher statistical significances. The search in the H to gamma gamma channel can also be substantially improved due to an enhancement of the branching fraction for the decay of the Higgs boson into a pair of photons. info:eu-repo/grantAgreement/EC/FP7/226371 info:eu-repo/semantics/openAccess Education Level info:eu-repo/semantics/article http://cds.cern.ch/record/1249579 JHEP JHEP, (2010) pp. 065 2010-03-18
spellingShingle Particle Physics - Phenomenology
Espinosa, J.R.
Grojean, C.
Muhlleitner, M.
Composite Higgs Search at the LHC
title Composite Higgs Search at the LHC
title_full Composite Higgs Search at the LHC
title_fullStr Composite Higgs Search at the LHC
title_full_unstemmed Composite Higgs Search at the LHC
title_short Composite Higgs Search at the LHC
title_sort composite higgs search at the lhc
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1007/JHEP05(2010)065
http://cds.cern.ch/record/1249579
http://cds.cern.ch/record/1249579
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