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A Supersymmetric Explanation of the Excess of Higgs-Like Events at LEP

Searches for the Standard Model Higgs boson by the four LEP experiments found excess events in two mass ranges: a 2.3 sigma excess around 98 GeV, and an 1.7 sigma excess around 115 GeV. The latter has been discussed widely in the literature, but the former has attracted little attention so far. In t...

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Autor principal: Drees, Manuel
Lenguaje:eng
Publicado: 2005
Materias:
Acceso en línea:https://dx.doi.org/10.1103/PhysRevD.71.115006
http://cds.cern.ch/record/821324
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author Drees, Manuel
author_facet Drees, Manuel
author_sort Drees, Manuel
collection CERN
description Searches for the Standard Model Higgs boson by the four LEP experiments found excess events in two mass ranges: a 2.3 sigma excess around 98 GeV, and an 1.7 sigma excess around 115 GeV. The latter has been discussed widely in the literature, but the former has attracted little attention so far. In this paper I explore the possibility of explaining the excess near 98 GeV through production of the lighter CP--even Higgs boson in the Minimal Supersymmetric Standard Model (MSSM). It is shown that this allows to simultaneously explain the excess near 115 GeV through the production of the heavier CP--even MSSM Higgs boson. The resulting light Higgs sector offers opportunities for charged Higgs boson searches at the Tevatron and LHC. Neutral Higgs boson searches at the LHC in the di--muon channel are also promising. However, conclusive tests of this scenario may have to wait for the construction of a linear e+ e- collider.
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spelling cern-8213242019-09-30T06:29:59Zdoi:10.1103/PhysRevD.71.115006http://cds.cern.ch/record/821324engDrees, ManuelA Supersymmetric Explanation of the Excess of Higgs-Like Events at LEPParticle Physics - PhenomenologySearches for the Standard Model Higgs boson by the four LEP experiments found excess events in two mass ranges: a 2.3 sigma excess around 98 GeV, and an 1.7 sigma excess around 115 GeV. The latter has been discussed widely in the literature, but the former has attracted little attention so far. In this paper I explore the possibility of explaining the excess near 98 GeV through production of the lighter CP--even Higgs boson in the Minimal Supersymmetric Standard Model (MSSM). It is shown that this allows to simultaneously explain the excess near 115 GeV through the production of the heavier CP--even MSSM Higgs boson. The resulting light Higgs sector offers opportunities for charged Higgs boson searches at the Tevatron and LHC. Neutral Higgs boson searches at the LHC in the di--muon channel are also promising. However, conclusive tests of this scenario may have to wait for the construction of a linear e+ e- collider.hep-ph/0502075oai:cds.cern.ch:8213242005-02-08
spellingShingle Particle Physics - Phenomenology
Drees, Manuel
A Supersymmetric Explanation of the Excess of Higgs-Like Events at LEP
title A Supersymmetric Explanation of the Excess of Higgs-Like Events at LEP
title_full A Supersymmetric Explanation of the Excess of Higgs-Like Events at LEP
title_fullStr A Supersymmetric Explanation of the Excess of Higgs-Like Events at LEP
title_full_unstemmed A Supersymmetric Explanation of the Excess of Higgs-Like Events at LEP
title_short A Supersymmetric Explanation of the Excess of Higgs-Like Events at LEP
title_sort supersymmetric explanation of the excess of higgs-like events at lep
topic Particle Physics - Phenomenology
url https://dx.doi.org/10.1103/PhysRevD.71.115006
http://cds.cern.ch/record/821324
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