Flavour Issues in Leptogenesis

Abstract : We study the impact of flavour in thermal leptogenesis, including the quantum oscillations of the asymmetries in lepton flavour space. In the Boltzmann equations we find different numerical factors and additional terms which can affect the results significantly. The upper bound on the CP asymmetry in a specific flavour is weaker than the bound on the sum. This suggests that -- when flavour dynamics is included -- there is no model-independent limit on the light neutrino mass scale,and that the lower bound on the reheat temperature is relaxed by a factor ~ (3 - 10).
Document type :
Journal articles
Complete list of metadatas

https://hal.archives-ouvertes.fr/hal-00016878
Contributor : Responsable Bibliotheque <>
Submitted on : Friday, January 13, 2006 - 11:23:09 AM
Last modification on : Thursday, March 15, 2018 - 11:40:07 AM

Links full text

Identifiers

Collections

Citation

A. Abada, S. Davidson, F-X. J. Michaux, M. Losada, A. Riotto. Flavour Issues in Leptogenesis. JCAP, 2006, 04, pp.004. ⟨hal-00016878⟩

Share

Metrics

Record views

171