Linking resonant leptogenesis with dynamics of the inverse seesaw theory with $A_4$ flavor symmetry

Abstract

In this paper, we analyse resonant leptogenesis in a low scale inverse seesaw model with $A_4$ flavor symmetry, in a model we explored earlier to explain light neutrino masses and mixings, and also charged lepton flavor violating decay $\mu \to e\gamma$. Six $A_4$ scalar singlets and one $A_4$ fermion triplet are included, which are charged under the group $A_4\times U(1{)}_X\times Z_5\times Z_4$, with at least two degenerate RH (Right Handed) neutrinos. The light neutrino masses and leptogenesis both share a same origin with the heavy right handed neutrinos. Thus, we expound the possibility of generating resonant leptogenesis in this model at energies as low as 1 TeV. We then analyse our findings to envision if our model inclines more towards weak or strong washout.

Comments: 24 pages, 6 tables, 37 figures