Mini-charged tau neutrinos?
High Energy Physics - Phenomenology
2009-10-22 v1
Abstract
Theoretically, the electric charge of the tau neutrino may be non-zero. The experimental bound on the electric charge of the tau neutrino is many orders of magnitude weaker than that for any other known neutrino. If the tau neutrino does have a small electric charge, and its mass is greater than 1 MeV, then it can annihilate sufficiently in the early Universe by electromagnetic interactions to avoid conflict with the standard cosmology model. A novel feature of this scenario is that there can be effectively less than three neutrino species present during nucleosynthesis.
Keywords
Cite
@article{arxiv.hep-ph/9307328,
title = {Mini-charged tau neutrinos?},
author = {R. Foot and H. Lew},
journal= {arXiv preprint arXiv:hep-ph/9307328},
year = {2009}
}
Comments
8 pages in LaTeX, 1 uuencoded figure file appended, PURD-TH-93-10