Searches for heavy neutrinos at multi-TeV muon collider: a resonant leptogenesis perspective

Abstract

In this work, the Standard Model (SM) is extended with two right-handed (RH) neutrinos and two singlet neutral fermions to yield active neutrino masses via (2,2) inverse see-saw mechanism. We first validate the multi-dimensional model parameter space with neutrino oscillation data, obeying the experimental bounds coming from the lepton flavor violating (LFV) decays: mu rightarrow e gamma ,~ tau rightarrow e gamma , ~ tau rightarrow mu gamma . Besides we also search for the portion of the parameter space which yield the observed baryon asymmetry of the universe via resonant leptogenesis. Further, we pick up a few benchmark points from the aforementioned parameter space with TeV scale heavy neutrinos and perform an exhaustive collider analysis of the final states: 2l + E_T !!!!!!/;, and 1,l + 2j + not ! E_T in multi-TeV muon collider.