Lepton flavor violation and leptogenesis in discrete flavor symmetric scotogenic model

Abstract

We have studied the scotogenic model proposed by Ernest Ma, which is an extension of the Standard Model by three singlet right-handed neutrinos and a scalar doublet. This model proposes that the light neutrinos acquire a non-zero mass at 1-loop level. In this work, the realisation of the scotogenic model is done by using discrete symmetries $A_4\times Z_4$ in which the non-zero ${\theta }_{13}$ is produced by assuming a non-degeneracy in the loop factor. Considering different lepton flavor violating(LFV) processes such as $l_{\alpha }⟶l_{\beta }\gamma$ and $l_{\alpha }⟶3l_{\beta }$, their impact on neutrino phenomenology is studied. We have also analysed $0\nu \beta \beta$ and baryon asymmetry of the Universe (BAU) in this work.

Comments: 32 pages 14 figures 3 tables Appendix VIII.C is added (Accepted for publication in Nuclear Physics B)