Decaying warm dark matter and structure formation
نویسندگان
چکیده
منابع مشابه
Decaying warm dark matter and neutrino masses.
Neutrino masses may arise from spontaneous breaking of ungauged lepton number. Because of quantum gravity effects the associated Goldstone boson - the majoron - will pick up a mass. We determine the lifetime and mass required by cosmic microwave background observations so that the massive majoron provides the observed dark matter of the Universe. The majoron decaying dark matter scenario fits n...
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Since it became evident that the CDM model for cosmic structure formation predicts smaller power on large scales than observed, many alternatives have been suggested. Among them, the existence of late decaying particle can cure it by delaying the beginning of the matter domination and increasing the horizon length at that time. We discuss the realization of this scenario and present the light n...
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ژورنال
عنوان ژورنال: Journal of Cosmology and Astroparticle Physics
سال: 2018
ISSN: 1475-7516
DOI: 10.1088/1475-7516/2018/12/026