Friday, July 13, 2012

1207.2771 (Tetsutaro Higaki et al.)

Higgs, Moduli Problem, Baryogenesis and Large Volume Compactifications    [PDF]

Tetsutaro Higaki, Kohei Kamada, Fuminobu Takahashi
We consider the cosmological moduli problem in the context of high-scale supersymmetry breaking suggested by the recent discovery of the standard-model like Higgs boson. In order to solve the notorious moduli-induced gravitino problem, we focus on the LARGE volume scenario, in which the modulus decay into gravitinos can be kinematically forbidden. We then consider the Affleck-Dine mechanism with or without an enhanced coupling with the inflaton, taking account of possible Q-ball formation. We show that the baryon asymmetry of the present Universe can be generated by the Affleck-Dine mechanism in LARGE volume scenario, solving the moduli and gravitino problems.
View original: http://arxiv.org/abs/1207.2771

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