ALP leptogenesis: non-thermal right-handed neutrinos from axions

ALP leptogenesis: non-thermal right-handed neutrinos from axions

Abstract We propose a novel realisation of leptogenesis that relies on the out-of-equilibrium decay of an axion-like particle (ALP) into right-handed Majorana neutrinos (RHNs) in the early Universe. With respect to standard thermal leptogenesis, our mechanism lowers by two orders of magnitude the RH...

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Bibliographic Details
Main Authors: Martina Cataldi, Alberto Mariotti, Filippo Sala, Miguel Vanvlasselaer
Format: Article
Language:English
Published: SpringerOpen 2024-12-01
Series:Journal of High Energy Physics
Subjects:
Baryo-and Leptogenesis
Baryon/Lepton Number Violation
Early Universe Particle Physics
Axions and ALPs
Online Access:https://doi.org/10.1007/JHEP12(2024)125

Internet

https://doi.org/10.1007/JHEP12(2024)125

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