Gravitino DM and high reheating temperatures after LHC 7/8

Abstract

The presence of high reheating temperatures in the thermal history of the universe challenges supersymmetric scenarios owing to the gravitino problem. We revise a general R-parity conserving gravitino dark matter scenario with a stau as the next-to-lightest superparticle being particularly constrained by searches for heavy stable charged particles at the LHC. Imposing a variety of experimental and theoretical constraints we show that points with T_R > 10^9 GeV survive only in a very particular corner of parameter space.

Proceedings of the 49th Rencontres de Moriond on Electroweak Interactions and Unified Theories (2014); 6 pages, 6 eps figures