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Reconstructing Higgs boson properties from the LHC and Tevatron data

We perform a phenomenological fit to all ATLAS, CMS, CDF and D0 Higgs boson data available after Moriond 2012. We allow all Higgs boson branching fractions, its couplings to standard model particles, as well as to an hypothetical invisible sector to vary freely, and determine their current favourite...

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Detalles Bibliográficos
Autores principales: Giardino, Pier Paolo, Kannike, Kristjan, Raidal, Martti, Strumia, Alessandro
Lenguaje:eng
Publicado: 2012
Materias:
Acceso en línea:https://dx.doi.org/10.1007/JHEP06(2012)117
http://cds.cern.ch/record/1433444
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author Giardino, Pier Paolo
Kannike, Kristjan
Raidal, Martti
Strumia, Alessandro
author_facet Giardino, Pier Paolo
Kannike, Kristjan
Raidal, Martti
Strumia, Alessandro
author_sort Giardino, Pier Paolo
collection CERN
description We perform a phenomenological fit to all ATLAS, CMS, CDF and D0 Higgs boson data available after Moriond 2012. We allow all Higgs boson branching fractions, its couplings to standard model particles, as well as to an hypothetical invisible sector to vary freely, and determine their current favourite values. The standard model Higgs boson with a mass 125 GeV correctly predicts the average observed rate and provides an acceptable global fit to data. However, better fits are obtained by non-standard scenarios that reproduce anomalies in the present data (more \gamma\gamma{} and less WW signals than expected), such as modified rates of loop processes or partial fermiophobia. We find that present data disfavours Higgs boson invisible decays. We consider implications for the standard model, for supersymmetric and fermiophobic Higgs bosons, for dark matter models, for warped extra-dimensions.
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institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2012
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spelling cern-14334442021-07-15T17:31:57Zdoi:10.1007/JHEP06(2012)117http://cds.cern.ch/record/1433444engGiardino, Pier PaoloKannike, KristjanRaidal, MarttiStrumia, AlessandroReconstructing Higgs boson properties from the LHC and Tevatron dataParticle Physics - PhenomenologyWe perform a phenomenological fit to all ATLAS, CMS, CDF and D0 Higgs boson data available after Moriond 2012. We allow all Higgs boson branching fractions, its couplings to standard model particles, as well as to an hypothetical invisible sector to vary freely, and determine their current favourite values. The standard model Higgs boson with a mass 125 GeV correctly predicts the average observed rate and provides an acceptable global fit to data. However, better fits are obtained by non-standard scenarios that reproduce anomalies in the present data (more \gamma\gamma{} and less WW signals than expected), such as modified rates of loop processes or partial fermiophobia. We find that present data disfavours Higgs boson invisible decays. We consider implications for the standard model, for supersymmetric and fermiophobic Higgs bosons, for dark matter models, for warped extra-dimensions.We perform a phenomenological fit to all ATLAS, CMS, CDF and D0 Higgs boson data available after Moriond 2012. We allow all Higgs boson branching fractions, its couplings to standard model particles, as well as to an hypothetical invisible sector to vary freely, and determine their current favourite values. The standard model Higgs boson with a mass 125 GeV correctly predicts the average observed rate and provides an acceptable global fit to data. However, better fits are obtained by non-standard scenarios that reproduce anomalies in the present data (more \gamma\gamma{} and less WW signals than expected), such as modified rates of loop processes or partial fermiophobia. We find that present data disfavours Higgs boson invisible decays. We consider implications for the standard model, for supersymmetric and fermiophobic Higgs bosons, for dark matter models, for warped extra-dimensions.arXiv:1203.4254CERN-PH-TH-2012-066CERN-PH-TH-2012-066oai:cds.cern.ch:14334442012-03-21
spellingShingle Particle Physics - Phenomenology
Giardino, Pier Paolo
Kannike, Kristjan
Raidal, Martti
Strumia, Alessandro
Reconstructing Higgs boson properties from the LHC and Tevatron data
title Reconstructing Higgs boson properties from the LHC and Tevatron data
title_full Reconstructing Higgs boson properties from the LHC and Tevatron data
title_fullStr Reconstructing Higgs boson properties from the LHC and Tevatron data
title_full_unstemmed Reconstructing Higgs boson properties from the LHC and Tevatron data
title_short Reconstructing Higgs boson properties from the LHC and Tevatron data
title_sort reconstructing higgs boson properties from the lhc and tevatron data
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1007/JHEP06(2012)117
http://cds.cern.ch/record/1433444
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AT kannikekristjan reconstructinghiggsbosonpropertiesfromthelhcandtevatrondata
AT raidalmartti reconstructinghiggsbosonpropertiesfromthelhcandtevatrondata
AT strumiaalessandro reconstructinghiggsbosonpropertiesfromthelhcandtevatrondata