Decaying neutrino and a high cosmological baryon density
Astrophysics
2009-10-31 v2 High Energy Physics - Phenomenology
Abstract
The low second acoustic peak in the recent Boomerang data may indicate a cosmological baryon density which is larger than allowed by standard big bang nucleosynthesis. We show that the decay of the tau-neutrino: nu_tau -> nu_e + phi, where nu_e is the electron neutrino and phi is a scalar, essentially can assure agreement between BBN calculations and light element observations for a large baryon density.
Keywords
Cite
@article{arxiv.astro-ph/0005114,
title = {Decaying neutrino and a high cosmological baryon density},
author = {S. H. Hansen and F. L. Villante},
journal= {arXiv preprint arXiv:astro-ph/0005114},
year = {2009}
}
Comments
6 pages, 2 figures, added references