Lambiase, G. (2015) Gravitino problem in f(R) cosmology. Il nuovo cimento C, 38 (5). pp. 1-7. ISSN 1826-9885
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Abstract
The gravitino problem is investigated in the framework of f(R) cosmology. Since in f(R) cosmology the expansion laws of the Universe are modified, as compared to the standard cosmology, it follows that also the thermal history of particles gets modified. We show that f(R) models allow to avoid the late abundance of gravitinos. In particular, we found that for an appropriate choice of the parameters characterizing the f(R) model, the gravitino abundance turns out to be independent of the reheating temperature.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Higher-dimensional gravity and other theories of gravity; Cosmology |
| Subjects: | 500 Scienze naturali e Matematica > 530 Fisica |
| Depositing User: | Marina Spanti |
| Date Deposited: | 23 Jun 2020 08:58 |
| Last Modified: | 23 Jun 2020 08:58 |
| URI: | http://eprints.bice.rm.cnr.it/id/eprint/19152 |
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