Non-thermal dark matter and the moduli problem in string frameworks

Bobby S. Acharya, Konstantin Bobkov, Gordon Kane, Jing Shao, Scott Watson, Piyush Kumar

Research output: Contribution to journalArticlepeer-review

144 Scopus citations


We address the cosmological moduli/gravitino problems and the issue of too little thermal but excessive non-thermal dark matter from the decays of moduli. The main examples we study are the G 2-MSSM models arising from M theory compactifications, which allow for a precise calculation of moduli decay rates and widths. We find that the late decaying moduli satisfy both BBN constraints and avoid the gravitino problem. The non-thermal production of Wino LSPs, which is a prediction of G 2-MSSM models, gives a relic density of about the right order of magnitude.

Original languageEnglish (US)
Article number064
JournalJournal of High Energy Physics
Issue number6
StatePublished - Jun 1 2008
Externally publishedYes


  • Cosmology of theories beyond the SM
  • Supersymmetry phenomenology

ASJC Scopus subject areas

  • Nuclear and High Energy Physics


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