Axion Cosmology with a Stronger QCD in the Early Universe

Details Axion Cosmology with a Stronger QCD in the Early Universe Axion Cosmology with a Stronger QCD in the Early Universe

1996-06-19

arxiv.org/abs/hep-ph/9606372v1

Nucl.Phys. B490 (1997) 349-364

Physics

High Energy Physics

High Energy Physics - Phenomenology

23 pages, ReVTeX, 2 JPEG figures

Scientific paper

We examine in the context of supersymmetric models whether the usual cosmological upper bound on the axion decay constant can be relaxed by assuming a period of stronger QCD in the early universe. By evaluating the axion potential in the early universe and also taking into account the dilaton potential energy, it is argued that a stronger QCD is not useful for raising up the bound.

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