Exploring the Di-Photon Decay of a Light Higgs Boson in the MSSM With Explicit CP Violation

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dc.creatorHesselbach, S.
dc.creatorMoretti, S.
dc.creatorMunir, S.
dc.creatorPoulose, P.
dc.date2007-06-28
dc.date2007-12-07
dc.date.accessioned2026-07-07T11:17:18Z
dc.date.available2026-07-07T11:17:18Z
dc.descriptionThe di-photon decay channel of the lightest Higgs boson is considerd as a probe to explore CP violation in the Minimal Supersymmetric Standard Model (MSSM). The scalar/pseudo-scalar mixing is considered along with CP violation entering through the Higgs-sfermion-sfermion couplings, with and without light sparticles. The impact of a light stop on the decay width and Branching Ratio (BR) is established through a detailed study of the amplitude of the process H1 --> gamma.gamma. The other sparticles have little influence even when they are light. With a suitable combination of other MSSM parameters, a light stop can change the BR by more than 50 % with a CP-violating phase phi_mu ~ 90 deg., while the change is almost nil with a heavy stop.
dc.description27 pages; LaTeX; minor changes in text; reference added; corrected version to appear in EPJC
dc.identifierhttps://arxiv.org/abs/0706.4269
dc.identifierhttp://arxiv.org/abs/0706.4269
dc.identifierEur.Phys.J.C54:129-147,2008
dc.identifierdoi:10.1140/epjc/s10052-007-0503-4
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/192965
dc.subjectHigh Energy Physics - Phenomenology
dc.titleExploring the Di-Photon Decay of a Light Higgs Boson in the MSSM With Explicit CP Violation
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