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T: Fachverband Teilchenphysik

T 20: Neutrinophysik (Theorie)

T 20.4: Talk

Tuesday, March 5, 2013, 17:30–17:45, WIL-B122

Neutrino Mixing from SUSY breaking — •Wolfgang G. Hollik and Ulrich Nierste — Karlsruher Institut f. Technologie (TTP)

The origin of lepton flavour mixing may or may not depend on hidden flavour symmetries. In a theory with an additional source of flavour mixing, like in the MSSM with righthanded neutrinos, those can radiatively spoil the tree-level contributions from the mass matrices. Without the assumption of non-minimal flavour violation, the corrections to neutrino mixing get significantly enhanced for quasi-degenerate neutrino masses. However, this class of radiative corrections is quite general and not committed to SUSY theories.