Title

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

Author(s)/Creator(s)

Scott Watson, Syracuse University
Bobby Samir Acharya, Syracuse University
Piyush Kumar, Lawrence Berkeley National Laboratory
Konstantin Bobkov, Michigan Center for Theoretical Physics, University of Michigan

Document Type

Article

Date

4-12-2008

Language

English

Disciplines

Physics

Description/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.

Additional Information

41 pages, 5 figures, references and minor comments added More informaton at http://arxiv.org/abs/0804.0863

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Recommended Citation

Watson, Scott; Acharya, Bobby Samir; Kumar, Piyush; and Bobkov, Konstantin, "Non-Thermal Dark Matter and the Moduli Problem in String Frameworks" (2008). Physics - All Scholarship. 408.
https://surface.syr.edu/phy/408

Source

Harvested from Arxiv.org

Creative Commons License

This work is licensed under a Creative Commons Attribution 3.0 License.