201. Generating X-ray lines from annihilating dark matter
- Author
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Dudas, Emilian, Heurtier, Lucien, and Mambrini, Yann
- Subjects
High Energy Physics - Phenomenology ,Astrophysics - High Energy Astrophysical Phenomena ,High Energy Physics - Theory - Abstract
We propose different scenarios where a keV dark matter annihilates to produce a monochromatic signal. The process is generated through the exchange of a light scalar of mass of order 300 keV - 50 MeV coupling to photon through loops or higher dimensional operators. For natural values of the couplings and scales, the model can generate a gamma-ray line which can fit with the recently identified 3.5 keV X-ray line., Comment: 10 pages, 8 figures
- Published
- 2014
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