On the Solution to the Polonyi Problem with $O$(10~TeV) Gravitino Mass in Supergravity

Details On the Solution to the Polonyi Problem with $O$(10~TeV) Gravitino Mass in Supergravity On the Solution to the Polonyi Problem with $O$(10~TeV) Gravitino Mass in Supergravity

1994-09-21

arxiv.org/abs/hep-ph/9409367v1

Phys.Lett. B342 (1995) 105-110

Physics

High Energy Physics

High Energy Physics - Phenomenology

Scientific paper

10.1016/0370-2693(94)01337-C

We study the solution to the Polonyi problem where the Polonyi field weighs as $O(10{\rm TeV})$ and decays just before the primordial nucleosynthesis. It is shown that in spite of a large entropy production by the Polonyi field decay, one can naturally explain the present value of the baryon-to-entropy ratio, $n_B/s \sim (10^{-10}-10^{-11})$ if the Affleck-Dine mechanism for baryogenesis works. It is pointed out, however, that there is another cosmological problem related to the abundance of the lightest superparticles produced by the Polonyi decay.

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