Mu-tau neutrino refraction and collective three-flavor transformations in supernovae

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dc.creatorEsteban-Pretel, Andreu
dc.creatorPastor, Sergio
dc.creatorTomas, Ricard
dc.creatorRaffelt, Georg G.
dc.creatorSigl, Gunter
dc.date2007-12-07
dc.date2008-03-03
dc.date.accessioned2026-07-07T12:13:58Z
dc.date.available2026-07-07T12:13:58Z
dc.descriptionWe study three-flavor collective neutrino transformations in the dense-neutrino region above the neutrino sphere of a supernova core. We find that two-flavor conversions driven by the atmospheric mass difference and the 13-mixing angle capture the full effect if one neglects the second-order difference between the muon and tau neutrino refractive index. Including this "mu-tau matter term" provides a resonance at a density of approximately 3 x 10^7 g cm^-3 that typically causes significant modifications of the overall electron neutrino and antineutrino survival probabilities. This effect is surprisingly sensitive to deviations from maximal 23-mixing, being different for each octant.
dc.description9 pages, 7 figures. New presentation of results, version to be published in PRD
dc.identifierhttps://arxiv.org/abs/0712.1137
dc.identifierhttp://arxiv.org/abs/0712.1137
dc.identifierPhys.Rev.D77:065024,2008
dc.identifierdoi:10.1103/PhysRevD.77.065024
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/211033
dc.subjectAstrophysics
dc.subjectHigh Energy Physics - Phenomenology
dc.titleMu-tau neutrino refraction and collective three-flavor transformations in supernovae
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