On different approaches to freeze-in and freeze-out leptogenesis with quasi-degenerate neutrinos

Abstract We compare two approaches for determining the generation of lepton asymmetry during production and decay of quasi-degenerate neutrinos, namely the density matrix formalism and a recent proposal which does not involve any counting of neutrino number densities and is based on plugging the res...

Full description

Bibliographic Details
Main Author: J. Racker
Format: Article
Language:English
Published: SpringerOpen 2023-02-01
Series:European Physical Journal C: Particles and Fields
Online Access:https://doi.org/10.1140/epjc/s10052-023-11321-4