Strong Upper Limits on Sterile Neutrino Warm Dark Matter

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dc.creatorYuksel, Hasan
dc.creatorBeacom, John F.
dc.creatorWatson, Casey R.
dc.date2007-06-27
dc.date2008-09-05
dc.date.accessioned2026-07-07T11:52:42Z
dc.date.available2026-07-07T11:52:42Z
dc.descriptionSterile neutrinos are attractive dark matter candidates. Their parameter space of mass and mixing angle has not yet been fully tested despite intensive efforts that exploit their gravitational clustering properties and radiative decays. We use the limits on gamma-ray line emission from the Galactic Center region obtained with the SPI spectrometer on the INTEGRAL satellite to set new constraints, which improve on the earlier bounds on mixing by more than two orders of magnitude, and thus strongly restrict a wide and interesting range of models.
dc.description4 pages, 2 figures; minor revisions, accepted for publication in Physical Review Letters
dc.identifierhttps://arxiv.org/abs/0706.4084
dc.identifierhttp://arxiv.org/abs/0706.4084
dc.identifierPhys.Rev.Lett.101:121301,2008
dc.identifierdoi:10.1103/PhysRevLett.101.121301
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/204272
dc.subjectAstrophysics
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectNuclear Theory
dc.titleStrong Upper Limits on Sterile Neutrino Warm Dark Matter
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