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Scale of Leptogenesis

Jacqueline Faridani·Smaragda Lola·Patrick J. O'Donnell·Utpal Sarkar
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Abstract

We study the scale at which one can generate the lepton asymmetry of the universe which could then get converted to a baryon asymmetry during the electroweak phase transition. We consider the possibility that the Yukawa couplings are small but sufficiently large to generate enough lepton asymmetry. This forbids the possibility of the $(B-L)$ breaking scale being the electroweak scale.

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Jacqueline Faridani, Smaragda Lola, Patrick J. O'Donnell, Utpal Sarkar. 1998-04-08. Scale of Leptogenesis. https://doi.org/10.1007/s100529901020

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