Speaker
Lucien Heurtier
(C)
Description
In this talk, I will present new results about the recently observed X-ray line in different galaxy clusters. I will expose 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.
Authors
Emilian Adoni Dudas
(Ecole Polytechnique (FR))
Lucien Heurtier
(C)
Mark Dayvon Goodsell
(Ecole Polytechnique (FR))
Panteleimon Tziveloglou
(Conseil Europeen Recherche Nucl. (CERN))
