Sensitivity to SUSY Seesaw Parameters and Lepton Flavour Violation

Details Sensitivity to SUSY Seesaw Parameters and Lepton Flavour Violation Sensitivity to SUSY Seesaw Parameters and Lepton Flavour Violation

2007-08-20

arxiv.org/abs/0708.2617v1

ECONFC070512:029,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages, 4 figures. Presented at 5th Flavor Physics and CP Violation Conference (FPCP 2007), Bled, Slovenia, 12-16 May 2007

Scientific paper

We address the constraints on the SUSY seesaw parameters arising from Lepton Flavour Violation observables. Working in the Constrained Minimal Supersymmetric Standard Model extended by three right-handed (s)neutrinos, we study the predictions for the branching ratios of $l_j \to l_i \gamma$ and $l_j \to 3 l_i$ channels. We impose compatibility with neutrino data, electric dipole moment bounds, and further require a successful baryon asymmetry of the Universe (via thermal leptogenesis). We emphasise the interesting interplay between $\theta_{13}$ and the LFV muon decays, pointing out the hints on the SUSY seesaw parameters that can arise from measurements of $\theta_{13}$ and LFV branching ratios. This is a brief summary of the work of Ref. \cite{Antusch:2006vw}.

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