3.55 keV line in Minimal Decaying Dark Matter scenarios
High Energy Physics - Phenomenology
2015-08-06 v1
Abstract
We investigate the possibility of reproducing the recently reported line in some simple decaying dark matter scenarios. In all cases a keV scale decaying DM is coupled with a scalar field charged under SM gauge interactions and thus capable of pair production at the LHC. We will investigate how the demand of a DM lifetime compatible with the observed signal, combined with the requirement of the correct DM relic density through the freeze-in mechanism, impacts the prospects of observation at the LHC of the decays of the scalar field.
Cite
@article{arxiv.1412.6351,
title = {3.55 keV line in Minimal Decaying Dark Matter scenarios},
author = {Giorgio Arcadi and Laura Covi and Federico Dradi},
journal= {arXiv preprint arXiv:1412.6351},
year = {2015}
}