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Impact of $θ_{13}$ on Lepton Flavour Violating processes within SUSY Seesaw

S. Antusch·E. Arganda·M. J. Herrero·A. M. Teixeira
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Abstract

We study the impact of neutrino masses and mixings on LFV processes within the context of the supersymmetric seesaw scenario, where the CMSSM is extended by three right-handed (s)neutrinos. A hierarchical spectrum is considered for both heavy and light neutrinos. We systematically analyse the interesting relation between the leptonic mixing angle $θ_{13}$ and LFV muon and tau decays, namely $l_j \to l_i γ$ and $l_j \to 3 l_i$, and discuss the interplay with the other relevant parameters. We require compatibility with low energy neutrino data, bounds on both LFV decays and charged lepton electric dipole moments, and impose a successful baryogenesis via thermal leptogenesis. Particular emphasis is given to the implications that a future $θ_{13}$ measurement can have on our knowledge of the heavy neutrino sector.

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S. Antusch, E. Arganda, M. J. Herrero, A. M. Teixeira. 2006-11-06. Impact of $θ_{13}$ on Lepton Flavour Violating processes within SUSY Seesaw. https://doi.org/10.1088/1126-6708%2F2006%2F11%2F090

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