Unified origin of baryons and dark matter

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dc.creatorKitano, Ryuichiro
dc.creatorMurayama, Hitoshi
dc.creatorRatz, Michael
dc.date2008-07-27
dc.date2008-09-24
dc.date.accessioned2026-07-07T11:45:06Z
dc.date.available2026-07-07T11:45:06Z
dc.descriptionWe investigate the possibility that both the baryon asymmetry of the universe and the observed cold dark matter density are generated by decays of a heavy scalar field which dominates the universe before nucleosynthesis. Since baryons and cold dark matter have common origin, this mechanism yields a natural explanation of the similarity of the corresponding energy densities. The cosmological moduli and gravitino problems are avoided.
dc.description12 pages, one figure; v2: matches version published in PLB
dc.identifierhttps://arxiv.org/abs/0807.4313
dc.identifierhttp://arxiv.org/abs/0807.4313
dc.identifierPhys.Lett.B669:145-149,2008
dc.identifierdoi:10.1016/j.physletb.2008.09.049
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/201777
dc.subjectHigh Energy Physics - Phenomenology
dc.titleUnified origin of baryons and dark matter
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