Strong dynamics at the Planck scale as a solution to the cosmological moduli problem

Details Strong dynamics at the Planck scale as a solution to the cosmological moduli problem Strong dynamics at the Planck scale as a solution to the cosmological moduli problem

2010-12-15

arxiv.org/abs/1012.3227v3

JHEP 1101:139,2011

Physics

High Energy Physics

High Energy Physics - Phenomenology

18 pages;v2: minor revision. Accepted for publication in JHEP

Scientific paper

10.1007/JHEP01(2011)139

We argue that strong dynamics at the Planck scale can solve the cosmological moduli problem. We discuss its implications for inflation models, and find that a certain type of multi-field inflation model is required for this mechanism to work, since otherwise it would lead to the serious eta-problem. Combined with the inflaton-induced gravitino problem, we show that a chaotic inflation with a discrete symmetry naturally avoids both problems. Interestingly, the focus point supersymmetry is predicted when this mechanism is applied to the Polonyi model.

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