Lepton flavor violating Higgs boson decays in the MSSM-seesaw

Details Lepton flavor violating Higgs boson decays in the MSSM-seesaw Lepton flavor violating Higgs boson decays in the MSSM-seesaw

2004-11-03

arxiv.org/abs/hep-ph/0411048v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

Talk given by M. J. Herrero at the Vth Rencontres du Vietnam, Hanoi, August 5-11 2004

Scientific paper

Lepton flavor violating Higgs boson decays (LFVHD) are studied in the context of the Minimal Supersymmetric Standard Model (MSSM) enlarged with three right handed neutrinos and their supersymmetric partners, and with the neutrino masses being generated by the seesaw mechanism. We compute the partial widths for these decays to one-loop order and analyze numerically the corresponding branching ratios in terms of the MSSM and seesaw parameters. We analyze in parallel the lepton flavor changing $\l_j\to l_i \gamma$ decays and explore the maximum predicted rates for LFVHD, mainly for $H^0,A^0 \to \tau {\bar \mu}$ decays, by requiring compatibility with neutrino and $BR(\l_j\to l_i \gamma)$ data. We find LFVHD ratios of up to $10^{-5}$ in some regions of the MSSM-seesaw parameter space.

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