The Gravitino-Stau Scenario after Catalyzed BBN

Abstract

We consider the impact of Catalyzed Big Bang Nucleosynthesis on theories with a gravitino LSP and a charged slepton NLSP. In models where the gravitino to gaugino mass ratio is bounded from below, such as gaugino-mediated SUSY breaking, we derive a lower bound on the gaugino mass parameter m_1/2. As a concrete example, we determine the parameter space of gaugino mediation that is compatible with all cosmological constraints.

1+14 pages, 6 figures; v2: minor clarifications, 1 reference added, matches version to appear in JCAP

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• Constraints on Supersymmetric Models from Catalytic Primordial Nucleosynthesis of Beryllium
• Gravitino Dark Matter and the Cosmic Lithium Abundances
• Thermal relic abundances of long-lived staus
• A Re-analysis of Gravitino Dark Matter in the Constrained MSSM
• A note on the primordial abundance of stau NLSPs
• Probing the Reheating Temperature at Colliders and with Primordial Nucleosynthesis
• Cosmology with Long-Lived Charged Massive Particles
• Direct stau production at hadron colliders in cosmologically motivated scenarios
• Production of long-lived staus in the Drell-Yan process
• Flaxino dark matter and stau decay
• Supersymmetric Dark Matter Candidates - The Lightest Neutralino, the Gravitino, and the Axino
• Gravitino dark matter and the lithium primordial abundance within a pre-BBN modified expansion
• The long-lived stau as a thermal relic
• U(1)_R-mediated supersymmetry breaking from a six-dimensional flux compactification
• Gravitino dark matter in hybrid gauge-gravity models
• Trilinear-Augmented Gaugino Mediation