Out-of-equilibrium Baryogenesis and SuperWIMP Dark Matter

Abstract

The experimental fact that the energy density in Dark Matter and in Baryons is of the same order is one of the most puzzling in cosmology. In this letter we suggest a new mechanism able to explain this coincidence in the context of out-of-equilibrium baryogenesis with DM production "à la" SuperWIMP starting from the same initial particle. We then discuss two simple implementations of this scenario within supersymmetric models with gravitino DM.

5 pages, 3 figures

References in corpus (3)

• Asymmetric Dark Matter: Theories, Signatures, and Constraints
• Natural Baryogenesis from Unnatural Supersymmetry
• Supersymmetric mass spectra for gravitino dark matter with a high reheating temperature

Cited by in corpus (8)

• A Minimal Model of Gravitino Dark Matter
• A Review of WIMP Baryogenesis Mechanisms
• Gravitino Dark Matter and low-scale Baryogenesis
• Weak Scale Baryogenesis in a Supersymmetric Scenario with R-parity violation
• Axino LSP Baryogenesis and Dark Matter
• LHC phenomenology and baryogenesis in supersymmetric models with a $U(1{)}_R$ baryon number
• Baryogenesis from a Modulus Dominated Universe
• LSP baryogenesis and neutron-antineutron oscillations from R-parity violation