Laboratory tests for the cosmic neutrino background using beta-decaying nuclei
arXiv:0901.3491
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.
arXiv comment4 pages, 2 figures, contribution to procedings of PANIC 2008
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