Nonthermal production of gravitinos and inflatinos

Details Nonthermal production of gravitinos and inflatinos Nonthermal production of gravitinos and inflatinos

2001-02-21

arxiv.org/abs/hep-ph/0102264v1

Phys.Rev.Lett. 87 (2001) 051302

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages, 6 figures

Scientific paper

10.1103/PhysRevLett.87.051302

We explicitly calculate nonthermal gravitino production during the preheating period in the inflationary Universe. Contrary to earlier investigations, we consider a two--field model to separate the mechanisms of supersymmetry breaking and inflation. We show that the superpartner of the inflaton is significantly generated, while the gravitino production is considerably smaller. Nonthermal production of gravitinos seems thus less worrisome than recently claimed.

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