http://cp3.irmp.ucl.ac.be:80/PAI BEL-center_pheno Calendar - Week of 11/08/2026 http://cp3.irmp.ucl.ac.be:80/PAI/day.php?getdate=20261113&cal=BEL-center_pheno Fri Nov 13 2026 11:00 AM: <b>Unveiling Dark Matter Interactions through MeV Gamma-Ray Astronomy</b><br><br>Dark Matter (DM) particles (with MeV - TeV masses) annihilating in the Galactic halo not only produce gamma-rays via prompt radiation, but also generate abundant e+-'s, which subsequently emit through inverse Compton scattering, bremsstrahlung and in-flight annihilation processes, collectively called `secondary emissions'. While the prompt gamma-rays concentrate at a higher energy, the secondary emissions give rise to a broad photon spectrum ranging from hard X-rays to gamma-rays, which the upcoming space-based MeV telescopes will be able to probe. I shall discuss the sensitivity of these telescopes for 'weak-scale' DM particles with GeV - TeV masses, as well as for 'sub-GeV' DM with MeV - GeV masses (based on realistic models). I shall show that the MeV telescopes are able to probe a wide region of the DM parameter space which is currently unconstrained by other observations. I shall also discuss the compleme