Leptogenesis and composite heavy neutrinos with gauge mediated interactions

Understand

Leptogenesis is an appealing framework to account for the baryon asymmetry in the universe.

• To this end physics beyond the Standard Model is demanded.
• In this paper we investigate the possibility to attain successful leptogenesis with composite Majorana neutrinos.
• We work in the framework of effective gauge mediated and contact interactions without any reference to an underlying compositeness theory.