Leptogenesis and Reheating in Complex Hybrid Inflation

Details Leptogenesis and Reheating in Complex Hybrid Inflation Leptogenesis and Reheating in Complex Hybrid Inflation

2009-08-17

arxiv.org/abs/0908.2436v1

Phys.Rev.D81:036001,2010

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages, 4 figs

Scientific paper

10.1103/PhysRevD.81.036001

We study the transformation into a baryon asymmetry of a charge initially stored in a complex (waterfall) scalar field at the end of a hybrid inflation phase as described in Ref[1]. The waterfall field is coupled to right-handed neutrinos, and is also responsible for their Majorana masses. The charge is finally transferred to the leptons of the Standard Model through the decay of the right-handed neutrinos without introducing new CP violating interactions. Other needed processes, like the decay of the inflaton field and the reheating of the Universe are also discussed in detail.

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