Has HyperCP Observed a Light Higgs Boson?

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dc.creatorHe, Xiao-Gang
dc.creatorTandean, Jusak
dc.creatorValencia, G.
dc.date2006-10-27
dc.date.accessioned2026-07-07T11:02:00Z
dc.date.available2026-07-07T11:02:00Z
dc.descriptionThe HyperCP collaboration has observed three events for the decay Sigma^+ -> p mu^+ mu^- which may be interpreted as a new particle of mass 214.3 MeV. However, existing data from kaon and B-meson decays severely constrain this interpretation, and it is nontrivial to construct a model consistent with all the data. In this letter we show that the ``HyperCP particle'' can be identified with the light pseudoscalar Higgs boson in the next-to-minimal supersymmetric standard model, the A_1^0. In this model there are regions of parameter space where the A_1^0 can satisfy all the existing constraints from kaon and B-meson decays and mediate Sigma^+ -> p mu^+ mu^- at a level consistent with the HyperCP observation.
dc.description7 pages, 2 figures
dc.identifierhttps://arxiv.org/abs/hep-ph/0610362
dc.identifierhttp://arxiv.org/abs/hep-ph/0610362
dc.identifierPhys.Rev.Lett.98:081802,2007
dc.identifierdoi:10.1103/PhysRevLett.98.081802
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/188119
dc.subjectHigh Energy Physics - Phenomenology
dc.titleHas HyperCP Observed a Light Higgs Boson?
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