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

References in corpus (11)

• Constraints on the Reheating Temperature in Gravitino Dark Matter Scenarios
• Stau-catalyzed ${}^6$Li Production in Big-Bang Nucleosynthesis
• The cosmic 6Li and 7Li problems and BBN with long-lived charged massive particles
• Big-Bang Nucleosynthesis with Long-Lived Charged Slepton
• Implications of Catalyzed BBN in the CMSSM with Gravitino Dark Matter
• Cosmological Constraints on Gravitino LSP Scenario with Sneutrino NLSP
• How robust are inflation model and dark matter constraints from cosmological data?
• Collider signatures of gravitino dark matter with a sneutrino NLSP
• Entropy production by Q-ball decay for diluting long-lived charged particles
• Higgs Boson Exempt No-Scale Supersymmetry and its Collider and Cosmology Implications
• Extremely Long-Lived Charged Massive Particles as A Probe for Reheating of the Universe

Cited by in corpus (8)

• Big-Bang Nucleosynthesis and Gravitino
• Dark Matter Candidates - Axions, Neutralinos, Gravitinos, and Axinos
• The number density of a charged relic
• Gravitino Dark Matter and the Cosmic Lithium Abundances
• Probing the Reheating Temperature at Colliders and with Primordial Nucleosynthesis
• Flaxino dark matter and stau decay
• Supersymmetric Dark Matter Candidates - The Lightest Neutralino, the Gravitino, and the Axino
• The long-lived stau as a thermal relic