R-Parity violating flavor symmetries, recent neutrino data and absolute neutrino mass scale

Understand

We study the role of a very general type of flavor symmetry in controlling the strength of R-parity violation in supersymmetric models.

• We assume that only leptons are charged under a global symmetry whose breaking induces lepton number (and, hence, R-parity) violation.
• The charge assignments of leptons under this symmetry are such that the total number of independent lepton number violating couplings is reduced from 39 to 6.
• The most severe constraints on these flavor-correlated couplings arise from neutrino masses and mixing as well as from the non-observation of K_L -> e\mu.