KeV Warm Dark Matter and Composite Neutrinos

Дата и время публикации : 2012-05-02T20:54:01Z

Авторы публикации и институты :
Dean J Robinson
Yuhsin Tsai

Ссылка на журнал-издание: JHEP 08 (2012) 161
Коментарии к cтатье: 12 pages, 2 figures, published version
Первичная категория: hep-ph

Все категории : hep-ph, astro-ph.CO

Краткий обзор статьи: Elementary keV sterile Dirac neutrinos can be a natural ingredient of the composite neutrino scenario. For a certain class of composite neutrino theories, these sterile neutrinos naturally have the appropriate mixing angles to be resonantly produced warm dark matter (WDM). Alternatively, we show these sterile neutrinos can be WDM produced by an entropy-diluted thermal freeze-out, with the necessary entropy production arising not from an out-of-equilibrium decay, but rather from the confinement of the composite neutrino sector, provided there is sufficient supercooling.

Category: Physics