Implications of a 17 keV neutrino for baryogenesis |
| |
Authors: | Ann E. Nelson |
| |
Affiliation: | Department of Physics 0319, 9500 Gilman Drive, University of California, San Diego, La Jolla, CA 92093-0319, USA |
| |
Abstract: | 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. |
| |
Keywords: | |
本文献已被 ScienceDirect 等数据库收录! |
|