Hybrid Inflation, Dark Energy And Dark Matter

Details Hybrid Inflation, Dark Energy And Dark Matter Hybrid Inflation, Dark Energy And Dark Matter

2005-02-28

arxiv.org/abs/hep-ph/0502254v1

Phys.Lett. B620 (2005) 105-110

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages, no figures

Scientific paper

10.1016/j.physletb.2005.06.024

It has been suggested that the dark energy density \rho_v ~ 10^{-12} eV^4 in the universe is associated with a metastable (false) vacuum, while the true vacuum has a vanishing cosmological constant. By including supergravity corrections we show how this is naturally realized in realistic supersymmetric hybrid inflation models. With a fundamental supersymmetry breaking scale ~ TeV, the LSP is not a suitable candidate for cold dark matter. We consider axion physics to overcome this and simultaneously provide a resolution of the MSSM \mu problem.

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