Matter and Dark Matter from False Vacuum Decay

Details Matter and Dark Matter from False Vacuum Decay Matter and Dark Matter from False Vacuum Decay

2010-08-13

arxiv.org/abs/1008.2355v2

Phys.Lett.B693:421-425,2010

Physics

High Energy Physics

High Energy Physics - Phenomenology

13 pages, 3 figures ; v2: corrected typos, matches PLB published version

Scientific paper

10.1016/j.physletb.2010.09.004

We study tachyonic preheating associated with the spontaneous breaking of B-L, the difference of baryon and lepton number. Reheating occurs through the decays of heavy Majorana neutrinos which are produced during preheating and in decays of the Higgs particles of B-L breaking. Baryogenesis is an interplay of nonthermal and thermal leptogenesis, accompanied by thermally produced gravitino dark matter. The proposed mechanism simultaneously explains the generation of matter and dark matter, thereby relating the absolute neutrino mass scale to the gravitino mass.

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