Abstract
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. We also find that the overall volume modulus decays into a pair of the axionic superpartners, which contribute to the extra relativistic degrees of freedom..
Original language | English |
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Article number | 43 |
Journal | Journal of High Energy Physics |
Volume | 2012 |
Issue number | 9 |
DOIs | |
Publication status | Published - 2012 Sept |
Keywords
- Cosmology of theories beyond the sm
- Flux compactifications
- Supergravity models
- Supersymmetry breaking
ASJC Scopus subject areas
- Nuclear and High Energy Physics