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Laboratory tests for the cosmic neutrino background using beta-decaying nuclei

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 bet...

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Autor principal: McElrath, Bob
Lenguaje:eng
Publicado: 2009
Materias:
Acceso en línea:http://cds.cern.ch/record/1157186
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author McElrath, Bob
author_facet McElrath, Bob
author_sort McElrath, Bob
collection CERN
description 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.
id cern-1157186
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2009
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spelling cern-11571862023-03-14T20:43:25Zhttp://cds.cern.ch/record/1157186engMcElrath, BobLaboratory tests for the cosmic neutrino background using beta-decaying nucleihep-phWe 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:0901.3491oai:cds.cern.ch:11571862009-01-23
spellingShingle hep-ph
McElrath, Bob
Laboratory tests for the cosmic neutrino background using beta-decaying nuclei
title Laboratory tests for the cosmic neutrino background using beta-decaying nuclei
title_full Laboratory tests for the cosmic neutrino background using beta-decaying nuclei
title_fullStr Laboratory tests for the cosmic neutrino background using beta-decaying nuclei
title_full_unstemmed Laboratory tests for the cosmic neutrino background using beta-decaying nuclei
title_short Laboratory tests for the cosmic neutrino background using beta-decaying nuclei
title_sort laboratory tests for the cosmic neutrino background using beta-decaying nuclei
topic hep-ph
url http://cds.cern.ch/record/1157186
work_keys_str_mv AT mcelrathbob laboratorytestsforthecosmicneutrinobackgroundusingbetadecayingnuclei