Implications of a 17 keV neutrino for baryogenesis

Details Implications of a 17 keV neutrino for baryogenesis Implications of a 17 keV neutrino for baryogenesis

Aug 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992nuphb.380..543n&link_type=abstract

Nuclear Physics B, Volume 380, Issue 3, p. 543-556.

Physics

Nuclear Physics

Scientific paper

There is some experimental evidence for a 17 keV component of the electron neutrino, in the form of the recent observations of kinks in the beta-decay spectra of tritium, 14C, 35S and 63Ni. In this paper I show that most particle-physics models consistent with the 17 keV neutrino require a baryogenesis scale below ~ 106 GeV. Furthermore, models with a 17 keV neutrino typically contain new sources of CP violation, and the cosmological baryon asymmetry could be generated by anomalous electroweak interactions during a first-order weak phase transition.

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