Minimal Leptogenesis in Brane-inspired Cosmology

Abstract

We discuss how a post inflationary reheating phase characterized by a nonstandard multiple scalar field cosmology can change the thermal history of the universe, affecting minimal high scale leptogenesis. In particular, we explore a class of models where a set of scalar fields in a brane-inspired dynamical scenario modifies the Boltzmann equations concerning standard leptogenesis. The produced lepton asymmetry, due to the decays of heavy Majorana right-handed neutrinos responsible for generating Standard Model neutrino masses via the type-I seesaw, is affected as well.

17 pages, 8 figures

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Cited by in corpus (2)

• Superradiant Leptogenesis
• Reviewing the prospect of fermion triplets as dark matter and source of baryon asymmetry in non-standard cosmology