期刊
PHYSICS LETTERS B
卷 718, 期 4-5, 页码 1401-1406出版社
ELSEVIER
DOI: 10.1016/j.physletb.2012.12.035
关键词
Dark matter; Kinetic mixing; Gamma-ray
资金
- Basic Science Research Program through the National Research Foundation of Korea
- Ministry of Education, Science and Technology [2011-0010294, 2011-0029758]
- National Research Foundation of Korea [2011-0010294] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
In light of the recent observation of the Fermi-LAT 130 GeV gamma-ray line, we suggest a model of scalar dark matter in a hidden sector, which can decay into two (hidden) photons. The process is radiatively induced by a GUT scale fermion in the loop, which is charged under a hidden sector U(1), and the kinetic mixing (similar to is an element of F-mu nu F'(mu nu)) enables us to fit the required decay width for the Fermi-LAT peak. The model does not allow any dangerous decay channels into light standard model particles. (C) 2012 Elsevier B.V. All rights reserved.
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