Axino warm dark matter and ${\Omega }_b-{\Omega }_{DM}$ coincidence

Abstract

We show that axinos, which are dominantly generated by the decay of the next-to-lightest supersymmetric particles produced from the leptonic $Q$-ball ($L$-ball), become warm dark matter suitable for the solution of the missing satellite problem and the cusp problem. In addition, ${\Omega }_b-{\Omega }_{DM}$ coincidence is naturally explained in this scenario.

11 pages, no figure, typos corrected, references added, final version

Cited by in corpus (8)

• Constraints on decaying Dark Matter from XMM-Newton observations of M31
• Neutralino dark matter from heavy axino decay
• MeV Dark Matter and Small Scale Structure
• Supersymmetric Q-balls: A Numerical Study
• Gravitino dark matter from increased thermal relic particles
• Flaxino dark matter and stau decay
• The Physics of Q-balls
• Supersymmetric inflation and baryogenesis via Extra-Flat directions of the MSSM