Coherent Active-Sterile Neutrino Flavor Transformation in the Early Universe

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dc.creatorKishimoto, Chad T.
dc.creatorFuller, George M.
dc.creatorSmith, Christel J.
dc.date2006-07-18
dc.date2006-10-07
dc.date.accessioned2026-07-07T07:15:43Z
dc.date.available2026-07-07T07:15:43Z
dc.descriptionWe solve the problem of coherent Mikheyev-Smirnov-Wolfenstein (MSW) resonant active-to-sterile neutrino flavor conversion driven by an initial lepton number in the early universe. We find incomplete destruction of lepton number in this process and a sterile neutrino energy distribution with a distinctive cusp and high energy tail. These features imply alteration of the non-zero lepton number primordial nucleosynthesis paradigm when there exist sterile neutrinos with rest masses ~ 1 eV. This could result in better light element probes of (constraints on) these particles.
dc.description4 pages, 3 figures, matches version printed in PRL
dc.identifierhttps://arxiv.org/abs/astro-ph/0607403
dc.identifierhttp://arxiv.org/abs/astro-ph/0607403
dc.identifierPhys.Rev.Lett. 97 (2006) 141301
dc.identifierdoi:10.1103/PhysRevLett.97.141301
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/113312
dc.subjectAstrophysics
dc.subjectHigh Energy Physics - Phenomenology
dc.titleCoherent Active-Sterile Neutrino Flavor Transformation in the Early Universe
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