Updated Axion CDM energy density

Details Updated Axion CDM energy density Updated Axion CDM energy density

2008-10-08

arxiv.org/abs/0810.1402v1

AIP Conf.Proc.1078:575-577,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

3 pages, 2 figures, talk presented at SUSY 2008

Scientific paper

10.1063/1.3052032

We update cosmological bound on axion model. The contribution from the anharmonic effect and the newly introduced initial overshoot correction are considered. We present an explicit formula for the axion relic density in terms of the QCD scale Lambda_{QCD}, the current quark masses m_q's and the Peccei-Quinn scale F_a, including firstly introduced 1.85 factor which is from the initial overshoot.

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