8-13 September 2013
Asilomar, California
US/Pacific timezone
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Contribution Oral

Asilomar, California
Dark Matter

Antiproton Limits on Decaying Gravitino Dark Matter


  • Michael GREFE

Primary authors

Abstract content

The nature of dark matter is one of the greatest mysteries of modern cosmology and particle physics. In this talk I will introduce a theory with broken R-parity where the gravitino forms a well-motivated candidate for unstable dark matter. After a brief review of the cosmological motivation for the scenario I will discuss its phenomenology with respect to indirect dark matter searches using observations of cosmic rays. In particular, I will elaborate on lower limits on the gravitino lifetime derived from antiproton data and the impact on the parameter space of the model.