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arXiv · 2211.11361

Minimal Leptogenesis in Brane-inspired Cosmology

Alessandro Di Marco·Amit Dutta Banik·Anish Ghoshal·Gianfranco Pradisi
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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.

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Alessandro Di Marco, Amit Dutta Banik, Anish Ghoshal, Gianfranco Pradisi. 2022-11-21. Minimal Leptogenesis in Brane-inspired Cosmology. https://doi.org/10.1103/physrevd.107.103509

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