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Nilles HP, Peloso M, Sorbo L. Nonthermal production of gravitinos and inflatinos. Phys Rev Lett. 2001;87(5):051302doi: 10.1103/PhysRevLett.87.051302.
Nilles, H. P., Peloso, M., & Sorbo, L. (2001). Nonthermal production of gravitinos and inflatinos. Physical review letters, 87(5), 051302. https://doi.org/10.1103/PhysRevLett.87.051302
Nilles, H P, et al. "Nonthermal production of gravitinos and inflatinos." Physical review letters vol. 87,5 (2001): 051302. doi: https://doi.org/10.1103/PhysRevLett.87.051302
Nilles HP, Peloso M, Sorbo L. Nonthermal production of gravitinos and inflatinos. Phys Rev Lett. 2001 Jul 30;87(5):051302. doi: 10.1103/PhysRevLett.87.051302. Epub 2001 Jul 11. PMID: 11497758.
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Phys Rev Lett. 2001 Jul 30;87(5):051302. doi: 10.1103/PhysRevLett.87.051302. Epub 2001 Jul 11.

Nonthermal production of gravitinos and inflatinos.

Physical review letters

H P Nilles, M Peloso, L Sorbo

Affiliations

  1. Physikalisches Institut, Universität Bonn, Nussallee 12, D-53115 Bonn, Germany.

PMID: 11497758 DOI: 10.1103/PhysRevLett.87.051302

Abstract

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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