Summary:

I will present updated constraints on 'light' Dark Matter (DM) particles with masses between 1 MeV and 5 GeV. In this range, we can expect DM-produced e+/e- pairs to up-scatter low-energy ambient photons in the Milky Way via the inverse-Compton process, and produce a flux of X-rays that can be probed by a range of space observatories. Using diffuse X-ray data from XMM-Newton, INTEGRAL, NuSTAR and Suzaku, we set the strongest constraints to date on annihilating and decaying DM with masses between 150 MeV and 5 GeV.

For more information please contact Poulin V.