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Higgs decay $H \to \gamma \gamma$: New theoretical results and possible experimental implications

The contribution of one W loop to the decay of the Higgs particle into two gammas is recalculated. Since this matrix element is finite in the standard model, it should be calculated in a straightforward way without artifacts such as regularization or ghosts. The result of the present calculation dif...

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Detalles Bibliográficos
Autores principales: Gastmans, R ], Wu, Sau Lan, Wu, Tai Tsun
Lenguaje:eng
Publicado: 2015
Materias:
Acceso en línea:https://dx.doi.org/10.1142/S0217751X15502000
http://cds.cern.ch/record/2149352
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author Gastmans, R ]
Wu, Sau Lan
Wu, Tai Tsun
author_facet Gastmans, R ]
Wu, Sau Lan
Wu, Tai Tsun
author_sort Gastmans, R ]
collection CERN
description The contribution of one W loop to the decay of the Higgs particle into two gammas is recalculated. Since this matrix element is finite in the standard model, it should be calculated in a straightforward way without artifacts such as regularization or ghosts. The result of the present calculation differs from the previous one, giving a Higgs decay rate smaller by a factor of 2 in the mass range of physical interest. In view of the results from the ATLAS Collaboration and the CMS Collaboration, this leads to possible far-reaching experimental consequences.
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institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2015
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spelling oai-inspirehep.net-14119292019-09-30T06:29:59Zdoi:10.1142/S0217751X15502000http://cds.cern.ch/record/2149352engGastmans, R ]Wu, Sau LanWu, Tai TsunHiggs decay $H \to \gamma \gamma$: New theoretical results and possible experimental implicationsParticle Physics - PhenomenologyThe contribution of one W loop to the decay of the Higgs particle into two gammas is recalculated. Since this matrix element is finite in the standard model, it should be calculated in a straightforward way without artifacts such as regularization or ghosts. The result of the present calculation differs from the previous one, giving a Higgs decay rate smaller by a factor of 2 in the mass range of physical interest. In view of the results from the ATLAS Collaboration and the CMS Collaboration, this leads to possible far-reaching experimental consequences.oai:inspirehep.net:14119292015
spellingShingle Particle Physics - Phenomenology
Gastmans, R ]
Wu, Sau Lan
Wu, Tai Tsun
Higgs decay $H \to \gamma \gamma$: New theoretical results and possible experimental implications
title Higgs decay $H \to \gamma \gamma$: New theoretical results and possible experimental implications
title_full Higgs decay $H \to \gamma \gamma$: New theoretical results and possible experimental implications
title_fullStr Higgs decay $H \to \gamma \gamma$: New theoretical results and possible experimental implications
title_full_unstemmed Higgs decay $H \to \gamma \gamma$: New theoretical results and possible experimental implications
title_short Higgs decay $H \to \gamma \gamma$: New theoretical results and possible experimental implications
title_sort higgs decay $h \to \gamma \gamma$: new theoretical results and possible experimental implications
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1142/S0217751X15502000
http://cds.cern.ch/record/2149352
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