Cosmological Implications of Radiatively Generated Axion Scale

Details Cosmological Implications of Radiatively Generated Axion Scale Cosmological Implications of Radiatively Generated Axion Scale

1996-08-03

arxiv.org/abs/hep-ph/9608222v1

Phys.Lett. B403 (1997) 209-217

Physics

High Energy Physics

High Energy Physics - Phenomenology

15 pages, Latex

Scientific paper

10.1016/S0370-2693(97)00465-6

We study cosmological implications of supersymmetric axion models in which the axion scale is generated radiatively. Such models lead to the so-called thermal inflation and subsequent reheating should be constrained not to yield a too large axion energy density at the time of nucleosynthesis. We examine how plausible it is that this nucleosynthesis constraint is satisfied for both hadronic and Dine-Fischler-Srednicki-Zhitnitskii type axion models. Baryogenesis and the possibility for raising up the cosmological upper bound on the axion scale in thermal inflation scenario are also discussed.

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