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

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

2006-07-24

arxiv.org/abs/hep-ph/0607263v2

JHEP 0611 (2006) 090

Physics

High Energy Physics

High Energy Physics - Phenomenology

44 pages, 25 figures. Some comments and references added. Version to appear in JHEP

Scientific paper

10.1088/1126-6708/2006/11/090

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 $\theta_{13}$ and LFV muon and tau decays, namely $l_j \to l_i \gamma$ 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 $\theta_{13}$ measurement can have on our knowledge of the heavy neutrino sector.

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