Generating X-ray lines from annihilating dark matter
High Energy Physics - Phenomenology
2014-08-13 v2 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.
Cite
@article{arxiv.1404.1927,
title = {Generating X-ray lines from annihilating dark matter},
author = {Emilian Dudas and Lucien Heurtier and Yann Mambrini},
journal= {arXiv preprint arXiv:1404.1927},
year = {2014}
}
Comments
10 pages, 8 figures