Leptogenesis in the type III seesaw mechanism

Abstract

It is shown that the type III seesaw mechanism proposed recently can have certain advantages over the conventional (or type I) seesaw mechanism for leptogenesis. In particular a resonant enhancement of leptogenesis via heavy quasi-Dirac right-handed neutrino pairs can occur without a special flavor form or "texture" of the mass matrices being assumed. Some of the requirements for neutrino mixing and leptogenesis are effectively decoupled.

12 pages including one figure, several references added

References in corpus (1)

• A different see-saw formula for neutrino masses

Cited by in corpus (53)

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