CMB constraints on non-thermal leptogenesis

Details CMB constraints on non-thermal leptogenesis CMB constraints on non-thermal leptogenesis

2003-08-02

arxiv.org/abs/hep-ph/0308020v3

Phys.Lett. B580 (2004) 7-16

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages, shortened version, to appear in PLB. Just one ref. added

Scientific paper

Leptogenesis is at the heart of particle cosmology which requires physics beyond the Standard Model. There are two possibilities of realizing leptogenesis; thermal and non-thermal. Both are viable given the scale of inflation and the constraint on the reheat temperature. However non-thermal leptogenesis can leave its imprint upon cosmic micro wave background radiation. In this paper we will discuss cosmological constraints on non-thermal leptogenesis scenarios within supersymmetry.

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