Sterile neutrino dark matter with gauged U(1){sub B-L} and a low reheating temperature

Journal Article · Fri Apr 17 00:00:00 EDT 2009 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3131492· OSTI ID:21301078

Khalil, Shaaban ^[1]; Seto, Osamu ^[2]

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1. Centre for Theoretical Physics, The British University in Egypt, El Sherouk City, 11837, P.O. Box 43 (Egypt)
2. William I. Fine Theoretical Physics Institute, University of Minnesota, Minneapolis, MN 55455 (United States)

Sterile right-handed neutrinos can be naturally embedded in a low scale gauged U(1){sub B-L} extension of the standard model. We show that, within a low reheating scenario, such a neutrino can be produced via a novel manner, namely scattering through Z' gauge boson, and becomes an interesting dark matter candidate. In addition, we show that if the neutrino mass is of the 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.

• OSTI ID: 21301078
• Journal Information: AIP Conference Proceedings, Vol. 1115, Issue 1; Conference: 4. international workshop on the dark side of the Universe, Cairo (Egypt), 1-5 Jun 2008; Other Information: DOI: 10.1063/1.3131492; (c) 2009 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
KEV RANGE
MEV RANGE
NEUTRINOS
NONLUMINOUS MATTER
PARTICLE IDENTIFICATION
PHOTONS
REST MASS
STANDARD MODEL
SUPERSYMMETRY
U-1 GROUPS
Z NEUTRAL BOSONS