Neutrino Decay and Atmospheric Neutrinos
High Energy Physics - Phenomenology
2009-09-25 v3 Astrophysics
High Energy Physics - Experiment
Abstract
We reconsider neutrino decay as an explanation for atmospheric neutrino observations. We show that if the mass-difference relevant to the two mixed states \nu_\mu and \nu_\tau is very small (< 10^{-4} eV^2), then a very good fit to the observations can be obtained with decay of a component of \nu_\mu to a sterile neutrino and a Majoron. We discuss how the K2K and MINOS long-baseline experiments can distinguish the decay and oscillation scenarios.
Keywords
Cite
@article{arxiv.hep-ph/9907421,
title = {Neutrino Decay and Atmospheric Neutrinos},
author = {V. Barger and J. G. Learned and P. Lipari and M. Lusignoli and S. Pakvasa and T. J. Weiler},
journal= {arXiv preprint arXiv:hep-ph/9907421},
year = {2009}
}
Comments
9 pages, Revtex, uses epsf.sty, 3 postscript figures. Additions and corrections to references, minor changes in the text and to some numbers