Can Strong QCD in the Early Universe Raise the Axion Decay Constant?

Details Can Strong QCD in the Early Universe Raise the Axion Decay Constant? Can Strong QCD in the Early Universe Raise the Axion Decay Constant?

1996-10-07

arxiv.org/abs/hep-ph/9610264v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

Invited talk given in ICHEP'96, Poland. To appear in the proceeding. The tex file, one figure and the stwol.sty files are all

Scientific paper

We report that the hypothesis that the upper bound on the axion
decay constant can be moved up beyond $10^{12}$ GeV in models with a stronger
QCD in the early universe is not realized. This proof is possible by studying
the superpotential in the dual model and obtaining the form of the axion
potential respecting the original global symmetries.

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