Constraints on the baryogenesis scale from neutrino masses

Using the interplay between anomalous electroweak processes at very high temperatures and B− L violating interactions, we derive bounds, related to neutrino masses, on the scale at which a B− L asymmetry must have been produced in the early universe. We consider in particular, the out-of-equilibrium...

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Bibliographic Details
Published inPhysics letters. B Vol. 258; no. 1; pp. 45 - 48
Main Authors Fischler, W., Giudice, G.F., Leigh, R.G., Paban, S.
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier B.V 04.04.1991
Elsevier Science
Subjects
Classical and quantum physics: mechanics and fields
Exact sciences and technology
Physics
Mass
Interaction
Neutrino
Mathematical operator
Group theory
Symmetry breaking
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Summary:Using the interplay between anomalous electroweak processes at very high temperatures and B− L violating interactions, we derive bounds, related to neutrino masses, on the scale at which a B− L asymmetry must have been produced in the early universe. We consider in particular, the out-of-equilibrium decays of heavy right-handed neutrinos, as well as the effects of B− L violation in other extensions of the standard model.
ISSN:0370-2693
1873-2445
DOI:10.1016/0370-2693(91)91207-C