Axion Cosmology with a Stronger QCD in the Early Universe

Abstract

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.

23 pages, ReVTeX, 2 JPEG figures

References in corpus (2)

• Destabilizing Divergences in Supergravity Theories at Two Loops
• Relaxation mechanisms: From Damour-Polyakov to Peccei-Quinn

Cited by in corpus (32)

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