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Signals for light dark matter axino
- Authors
- Kim, Hang Bae
- Issue Date
- Sep-2007
- Publisher
- World Scientific Publishing Co
- Keywords
- dark matter; axino; gamma-ray background
- Citation
- Modern Physics Letters A, v.22, no.25-28, pp 2113 - 2120
- Pages
- 8
- Indexed
- SCIE
SCOPUS
- Journal Title
- Modern Physics Letters A
- Volume
- 22
- Number
- 25-28
- Start Page
- 2113
- End Page
- 2120
- ISSN
- 0217-7323
1793-6632
- Abstract
- Light dark matter aims at explaining the 511 keV gamma-ray line emission from the galactic bulge as well as cold dark matter in our universe. The former is achieved via the annihilations or decays of light dark matter particles, which implies interesting observational consequences in addition to 511 keV gamma-rays. We consider the axino in the 1 similar to 10 MeV mass range as the light dark matter particle and discuss the particle physics models for it, its cosmological production, and its decay arising from R-parity violation. For additional observational signals, we consider the connection to the neutrino data made by bilinear R-parity violations and the continuum gamma-ray emission from light dark matter particles.
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Related Researcher
- Kim, Hang Bae
- COLLEGE OF NATURAL SCIENCES (DEPARTMENT OF PHYSICS)