Axino Dark Matter fromQ-Balls in Affleck-Dine Baryogenesis and theΩb−ΩDMCoincidence Problem

2006/08/31 by Leszek Roszkowski, Osamu Seto · 2 citations
Physics and Astronomy · #Baryogenesis #Cosmology and Gravitation Theories #Dark Matter and Cosmic Phenomena #Dark matter #Omega #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum mechanics #astro-ph #hep-ph

paper · pdf · doi:10.1103/physrevlett.98.161304

published as Phys.Rev.Lett.98:161304,2007 · 4 pages, no figure, final PRL version

openalex publication_date 2007/04/19 · arxiv created 2007/04/26 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

We show that the \ensuremathΩ_b\ensuremath-\ensuremathΩ_DM coincidence can naturally be explained in a framework where axino is cold dark matter which is predominantly produced in nonthermal processes involving decays of Q-balls formed in Affleck-Dine baryogenesis. In this approach, the similarity of \ensuremathΩ_b and \ensuremathΩ_DM is a direct consequence of the (sub-)GeV scale of the mass of the axino, while the reheating temperature T_R must be low, some 10² GeV, or less.

Citations

• Towards the robustness of the Affleck-Dine baryogenesis
• Axino mass in supergravity models
• Nonthermal dark matter via Affleck-Dine baryogenesis and its detection possibility
• Axino mass
• Review of Particle Physics

Cited by

• Simultaneous generation of WIMP miracle-like densities of baryons and dark matter
• Asymmetric Dark Matter: Theories, signatures, and constraints