Laboratory tests for the cosmic neutrino background using beta-decaying nuclei
High Energy Physics - Phenomenology
2009-01-23 v1 Cosmology and Nongalactic Astrophysics
High Energy Physics - Experiment
Abstract
We point out that the Pauli blocking of neutrinos by cosmological relic neutrinos can be a significant effect. For zero-energy neutrinos, the standard parameters for the neutrino background temperature and density give a suppression of approximately 1/2. We show the effect this has on three-body beta decays. The size of the effect is of the same order as the recently suggested neutrino capture on beta-decaying nuclei.
Cite
@article{arxiv.0901.3491,
title = {Laboratory tests for the cosmic neutrino background using beta-decaying nuclei},
author = {Bob McElrath},
journal= {arXiv preprint arXiv:0901.3491},
year = {2009}
}
Comments
4 pages, 2 figures, contribution to procedings of PANIC 2008