Published September 8, 2009
| Version v1
Journal article
Warm axino dark matter with Ωb-ΩDM
Creators
- 1. William I. Fine Theoretical Physics Institute, University of Minnesota, Minneapolis, MN 55455 (United States)
- 2. Instituto de Fisica Teorica UAM-CSIC, Universidad Autonoma de Madrid, Cantoblanco, 28049, Madrid (Spain)
- 3. Department of Physics and Mathematics, Aoyama Gakuin University, Sagamihara 229-8558 (Japan)
Description
We show that the Ωb-ΩDM coincidence can naturally be explained in a framework where axino is dark matter which is predominantly produced in nonthermal processes involving decays of Q-balls formed in Affleck-Dine mechanism. In this approach, the similarity of Ωb and ΩDM is a direct consequence of the (sub-)GeV scale of the mass of the axino. In the case that the formed Q-ball carries leptonic charge only (L-ball), produced axinos become warm dark matter suitable for the solution of the missing satellite problem and the cusp problem.
Additional details
Identifiers
- DOI
- 10.1063/1.3232169;
Publishing Information
- Journal Title
- AIP Conference Proceedings
- Journal Volume
- 1166
- Journal Issue
- 1
- Journal Page Range
- p. 126-131
- ISSN
- 0094-243X
- CODEN
- APCPCS
Conference
- Title
- 8. UCLA symposium on sources and detection of dark matter and dark energy in the Universe
- Dates
- 20-22 Feb 2008
- Place
- Marina del Rey, CA (United States)
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 41064012
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- BARYONS; COSMOLOGY; GEV RANGE; LEPTON NUMBER; MATHEMATICAL SOLUTIONS; NONLUMINOUS MATTER; PARTICLE DECAY; PARTICLE IDENTIFICATION; POSTULATED PARTICLES; REST MASS
- Descriptors DEC
- DECAY; ELEMENTARY PARTICLES; ENERGY RANGE; FERMIONS; HADRONS; MASS; MATTER
Optional Information
- Notes
- (c) 2009 American Institute of Physics