Sterile neutrino dark matter in $B-L$ extension of the standard model and galactic 511 keV line

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dc.creatorKhalil, Shaaban
dc.creatorSeto, Osamu
dc.date2008-04-02
dc.date2008-12-22
dc.date.accessioned2026-07-07T12:38:34Z
dc.date.available2026-07-07T12:38:34Z
dc.descriptionSterile right-handed neutrinos can be naturally embedded in a low scale gauged $U(1)_{B-L}$ extension of the standard model. We show that, within a low reheating scenario, such a neutrino is an interesting candidate for dark matter. We emphasize that if the neutrino mass is of order of MeV, then it accounts for the measured dark matter relic density and also accommodates the observed flux of 511 keV photons from the galactic bulge.
dc.description10 pages, 1 figure, references added, final version appeared in JCAP
dc.identifierhttps://arxiv.org/abs/0804.0336
dc.identifierhttp://arxiv.org/abs/0804.0336
dc.identifierJCAP 0810:024,2008
dc.identifierdoi:10.1088/1475-7516/2008/10/024
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/218806
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectAstrophysics
dc.titleSterile neutrino dark matter in $B-L$ extension of the standard model and galactic 511 keV line
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