Prospects for cosmic neutrino detection in tritium experiments in the case of hierarchical neutrino masses

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dc.creatorBlennow, Mattias
dc.date2008-03-26
dc.date2008-06-13
dc.date.accessioned2026-07-07T11:33:21Z
dc.date.available2026-07-07T11:33:21Z
dc.descriptionWe discuss the effects of neutrino mixing and the neutrino mass hierarchy when considering the capture of the cosmic neutrino background (CNB) on radioactive nuclei. The implications of mixing and hierarchy at future generations of tritium decay experiments are considered. We find that the CNB should be detectable at these experiments provided that the resolution for the kinetic energy of the outgoing electron can be pushed to a few 0.01 eV for the scenario with inverted neutrino mass hierarchy, about an order of magnitude better than that of the upcoming KATRIN experiment. Another order of magnitude improvement is needed in the case of normal neutrino mass hierarchy. We also note that mixing effects generally make the prospects for CNB detection worse due to an increased maximum energy of the normal beta decay background.
dc.description12 pages, 4 figures, REVTeX4, minor updates, final version, to be published in Phys. Rev. D
dc.identifierhttps://arxiv.org/abs/0803.3762
dc.identifierhttp://arxiv.org/abs/0803.3762
dc.identifierPhys.Rev.D77:113014,2008
dc.identifierdoi:10.1103/PhysRevD.77.113014
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/197862
dc.subjectAstrophysics
dc.subjectHigh Energy Physics - Phenomenology
dc.titleProspects for cosmic neutrino detection in tritium experiments in the case of hierarchical neutrino masses
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