Higgs, moduli problem, baryogenesis and LARGE volume compactifications

Tetsutaro Higaki, Kohei Kamada, Fuminobu Takahashi

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29 Citations (Scopus)

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 languageEnglish
Article number43
JournalJournal of High Energy Physics
Volume2012
Issue number9
DOIs
Publication statusPublished - 2012 Jan 1
Externally publishedYes

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Keywords

  • Cosmology of theories beyond the sm
  • Flux compactifications
  • Supergravity models
  • Supersymmetry breaking

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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