Di-photon Higgs decay in the MSSM with explicit CP violation

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dc.creatorHesselbach, S.
dc.creatorMoretti, S.
dc.creatorMunir, S.
dc.creatorPoulose, P.
dc.date2007-10-01
dc.date2007-12-08
dc.date.accessioned2026-07-07T11:37:42Z
dc.date.available2026-07-07T11:37:42Z
dc.descriptionThe Minimal Supersymmetric Standard Model (MSSM) with explicit CP violation is studied with the help of the di-photon decay channel of the lightest neutral Higgs boson. Effects of CP violation, entering via the scalar/pseudo-scalar mixing at higher order as well as through the Higgs-sfermion-sfermion couplings at tree-level, are analyzed in the MSSM with and without light sparticles. A light stop may have a strong impact on the decay width and Branching Ratio (BR) of the decay process H_1 -> gamma gamma, whereas other light sparticles have only little influence. In some regions of the MSSM parameter space with large CP-violating phase phi_mu ~ 90 degrees a light stop can change the BR by more than 50%.
dc.description3 pages, LaTeX, 4 eps figures, uses jpconf.cls, talk given by S. Hesselbach at the 2007 Europhysics Conference on High Energy Physics, Manchester, England, 19-25 July 2007; v2: changes in author affiliations
dc.identifierhttps://arxiv.org/abs/0710.0340
dc.identifierhttp://arxiv.org/abs/0710.0340
dc.identifierJ.Phys.Conf.Ser.110:072017,2008
dc.identifierdoi:10.1088/1742-6596/110/7/072017
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/199292
dc.subjectHigh Energy Physics - Phenomenology
dc.titleDi-photon Higgs decay in the MSSM with explicit CP violation
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