Inflation from a Supersymmetric Axion Model

Details Inflation from a Supersymmetric Axion Model Inflation from a Supersymmetric Axion Model

2010-08-30

arxiv.org/abs/1008.5013v2

Phys.Rev.D82:123531,2010

Physics

High Energy Physics

High Energy Physics - Phenomenology

5 pages; to appear in PRD

Scientific paper

10.1103/PhysRevD.82.123531

We show that a supersymmetric axion model naturally induces a hybrid inflation with the waterfall field identified as a Peccei-Quinn scalar. The Peccei-Quinn scale is predicted to be around 10^{15}GeV for reproducing the large-scale density perturbation of the Universe. After the built-in late-time entropy-production process, the axion becomes a dark matter candidate. Several cosmological implications are discussed.

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