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arXiv · 0804.0863

Non-thermal Dark Matter and the Moduli Problem in String Frameworks

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

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 G2-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 G2-MSSM models, gives a relic density of about the right order of magnitude.

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Bobby S. Acharya, Piyush Kumar, Konstantin Bobkov, Gordon Kane, Jing Shao, Scott Watson. 2008-04-12. Non-thermal Dark Matter and the Moduli Problem in String Frameworks. https://doi.org/10.1088/1126-6708%2F2008%2F06%2F064

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