On the Gaussian peak of the product of decay probabilities of the standard model Higgs boson at a mass m_H\sim125 GeV

The product of the branching ratios of the standard model (SM) Higgs boson in all decay channels available below the top-antitop threshold is observed to be a Gaussian distribution of the Higgs boson mass with a maximum centred around m_H\sim125 GeV, i.e. in the region of masses where a new boson ha...

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Autor principal: d'Enterria, David
Lenguaje:eng
Publicado: 2012
Materias:
Particle Physics - Phenomenology
Acceso en línea:http://cds.cern.ch/record/1472428
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author d'Enterria, David
author_facet d'Enterria, David
author_sort d'Enterria, David
collection CERN
description The product of the branching ratios of the standard model (SM) Higgs boson in all decay channels available below the top-antitop threshold is observed to be a Gaussian distribution of the Higgs boson mass with a maximum centred around m_H\sim125 GeV, i.e. in the region of masses where a new boson has been discovered at the Large Hadron Collider. This fact places the Higgs particle at a mass of "maximum opportunity" in terms of the study of its decays and couplings to other particles. Such an intriguing observation is seemingly driven by the different m_H-power dependence of the Higgs decay-widths into gauge bosons and fermions featuring a steep anticorrelated evolution below the WW decay threshold in the region m_H\sim m_W-2_mW. Speculative consequences of taking this seemingly accidental feature as indicative of an (unknown) underlying dynamics of the SM are also discussed.
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institution Organización Europea para la Investigación Nuclear
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publishDate 2012
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spelling cern-14724282021-05-03T08:20:24Zhttp://cds.cern.ch/record/1472428engd'Enterria, DavidOn the Gaussian peak of the product of decay probabilities of the standard model Higgs boson at a mass m_H\sim125 GeVParticle Physics - PhenomenologyThe product of the branching ratios of the standard model (SM) Higgs boson in all decay channels available below the top-antitop threshold is observed to be a Gaussian distribution of the Higgs boson mass with a maximum centred around m_H\sim125 GeV, i.e. in the region of masses where a new boson has been discovered at the Large Hadron Collider. This fact places the Higgs particle at a mass of "maximum opportunity" in terms of the study of its decays and couplings to other particles. Such an intriguing observation is seemingly driven by the different m_H-power dependence of the Higgs decay-widths into gauge bosons and fermions featuring a steep anticorrelated evolution below the WW decay threshold in the region m_H\sim m_W-2_mW. Speculative consequences of taking this seemingly accidental feature as indicative of an (unknown) underlying dynamics of the SM are also discussed.The product of the branching ratios of the standard model (SM) Higgs boson in all decay channels available below the top-antitop threshold is observed to be a Gaussian distribution of the Higgs boson mass with a maximum centered at m_H~125 GeV, i.e. exactly at the mass value where a new boson has been discovered at the Large Hadron Collider. Such an intriguing observation is seemingly driven by the different m_H-power dependence of the Higgs decay-widths into gauge bosons and fermions with steep anti-correlated evolutions in the transition region m_H~(m_W,2m_W) below the WW decay threshold. No other SM Higgs mass value has a better combined signal-strength for the whole set of decay channels. Speculative consequences of taking this feature as indicative of an underlying physical principle, that would force the Higgs mass to be that which maximizes its decay probabilities to all the SM particles simultaneously, are also discussed as a means to provide possible constraints for theoretical extensions of the SM.arXiv:1208.1993oai:cds.cern.ch:14724282012-08-10
spellingShingle Particle Physics - Phenomenology
d'Enterria, David
On the Gaussian peak of the product of decay probabilities of the standard model Higgs boson at a mass m_H\sim125 GeV
title On the Gaussian peak of the product of decay probabilities of the standard model Higgs boson at a mass m_H\sim125 GeV
title_full On the Gaussian peak of the product of decay probabilities of the standard model Higgs boson at a mass m_H\sim125 GeV
title_fullStr On the Gaussian peak of the product of decay probabilities of the standard model Higgs boson at a mass m_H\sim125 GeV
title_full_unstemmed On the Gaussian peak of the product of decay probabilities of the standard model Higgs boson at a mass m_H\sim125 GeV
title_short On the Gaussian peak of the product of decay probabilities of the standard model Higgs boson at a mass m_H\sim125 GeV
title_sort on the gaussian peak of the product of decay probabilities of the standard model higgs boson at a mass m_h\sim125 gev
topic Particle Physics - Phenomenology
url http://cds.cern.ch/record/1472428
work_keys_str_mv AT denterriadavid onthegaussianpeakoftheproductofdecayprobabilitiesofthestandardmodelhiggsbosonatamassmhsim125gev

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