Supersymmetric mass spectra for gravitino dark matter with a high reheating temperature

Abstract

Supersymmetric theories with gravitino dark matter generally do not allow the high reheating temperature required by thermal leptogenesis without running afoul of relic abundance or big bang nucleosynthesis constraints. We report on a successful search for parameter space that does satisfy these requirements. The main implication is the near degeneracy of the gluino with the other neutralinos in the spectrum. The leading discovery channel at the LHC for this scenario is through monojet plus missing energy events.

13 pages, 9 figures

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Cited by in corpus (5)

• Destruction of 7Be in big bang nucleosynthesis via long-lived sub-strongly interacting massive particles as a solution to the Li problem
• The Inflaton Portal to Dark Matter
• Long-Lived stop at the LHC with or without R-parity
• LHC prospects for minimal decaying Dark Matter
• Gauge Mediated Supersymmetry Breaking and String Theory