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Putting all the X in one basket: Updated X-ray constraints on sub-GeV Dark Matter

Pinetti, Elena; Fornengo, Nicolao; Cirelli, Marco +2 more

Sub-GeV dark matter particles can annihilate or decay producing e ^± pairs which upscatter the low-energy photon fields in the Galaxy and generate an X-ray emission (via the Inverse Compton effect). Using X-ray data from XMM-NEWTON, INTEGRAL, NUSTAR and SUZAKU, we derive new constraints on this class of dark matter (DM). In the annihilat…