Cosmological Constraints on Neutrino Injection

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dc.creatorKanzaki, Toru
dc.creatorKawasaki, Masahiro
dc.creatorKohri, Kazunori
dc.creatorMoroi, Takeo
dc.date2007-05-09
dc.date.accessioned2026-07-07T10:55:25Z
dc.date.available2026-07-07T10:55:25Z
dc.descriptionWe derive general constraints on the relic abundances of a long-lived particle which mainly decays into a neutrino (and something else) at cosmological time scales. Such an exotic particle may show up in various particle-physics models based on physics beyond the standard model. The constraints are obtained from big-bang nucleosynthesis, cosmic microwave background and diffuse neutrino and photon fluxes, depending on the lifetime and the electromagnetic and hadronic branching ratios.
dc.description33 pages, 23 figures
dc.identifierhttps://arxiv.org/abs/0705.1200
dc.identifierhttp://arxiv.org/abs/0705.1200
dc.identifierPhys.Rev.D76:105017,2007
dc.identifierdoi:10.1103/PhysRevD.76.105017
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/186075
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectAstrophysics
dc.titleCosmological Constraints on Neutrino Injection
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