Neutrino fluxes from Dark Matter in the HESS J1745-290 source at the Galactic Center

Abstract

The spectral study of the HESS J1745-290 high energy gamma-ray cut-off from the galactic center is compatible with a signal of Dark Matter (DM) annihilation or decay. If this is the case, a neutrino flux from that source is also expected. We analyze the neutrino flux predicted by DM particles able to originate the HESS J1745-290 gamma-rays observations. We focus on the electroweak and hadronic channels, which are favoured by present measurements. In particular, we study DM annihilating into W+W- and u-ubar with DM masses of 48.8 and 27.9 TeV respectively. We estimate the resolution angle and exposition time necessary to test the DM hypothesis as the origin of the commented gamma signal.

9 pages, 9 figures

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• Gamma-ray and neutrino fluxes from Heavy Dark Matter in the Galactic Center
• The potential of diffuse Galactic Ridge neutrino measurements to constrain dark matter