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We analyze lepton flavour violation (LFV), as well as generation of theobserved baryon-antibaryon asymmetry of the Universe (BAU) within a generalizedminimal lepton flavour violation (MLFV) framework where we allow for CPviolation both at low and high energies. The generation of BAU is obtainedthrough radiative resonant leptogenesis (RRL), where starting with threeexactly degenerate right-handed neutrinos at Lambda_GUT, we demonstrateexplicitly within the SM and the MSSM that the splittings between their massesat the see-saw scale M_nu, generated by renormalization group effects, aresufficient for a successful leptogenesis for M_nu even as low as 10^6 GeV. Theinclusion of flavour effects plays an important role in this result and canlead to the observed BAU even in the absence of CP violation beyond the PMNSphases. The absence of a stringent lower bound on M_nu in this type ofleptogenesis allows to easily satisfy present and near future upper bounds onmu -> e gamma and other charged lepton flavour violating (LFV) processes evenfor Lambda_LFV = O(1 TeV). We find, that the MLFV framework in the presence ofheavy right-handed neutrinos and leptogenesis is not as predictive as MFV inthe quark sector and point out that without a specific MLFV model, there is arich spectrum of possibilities for charged LFV processes and for theircorrelation with low energy neutrino physics and the LHC physics, even if theconstraint from the observed BAU is taken into account. While certainqualitative features of our analysis confirm findings of Cirigliano et al., atthe quantitative level we find phenomenologically important differences. Weexplain the origin of these differences.Comment: 48 pages, 9 figure

Another look at minimal lepton flavour violation, leptogenesis and the ratioMν/ΛLFV

Another look at minimal lepton flavour violation, leptogenesis and the ratioM_ν/Λ_LFV