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Aug 8 – 12, 2022
America/Toronto timezone

Search for gamma-ray spectral lines from Dark Matter annihilation in the Galactic Centre region with MAGIC

Aug 8, 2022, 3:50 PM
20m
Parallel Talk Dark Matter Dark Matter

Speaker

Daniel Kerszberg

Description

The Galactic Centre (GC) region is a promising target for dark matter (DM) search due to the size of its halo and proximity. We report on the search for DM spectral gamma-ray lines in the GC region up to gamma-ray energies of 100 TeV with the MAGIC telescopes, located on the island of La Palma (Spain). We present the results obtained with more than 200 hours of large-zenith angle observations of the GC region with MAGIC, which allow us to derive limits on the DM annihilation cross-section at high particle masses (<5×10^(-28) cm^3 s^-1 at 1 TeV and <1×10^(-25) cm^3 s^-1 at 100 TeV for cuspy dark matter profile), improving the best current constraints above 20 TeV. We also study the impact of a cored dDM profile on our limits. Finally we use our results to constrain super-symmetric wino models.

Collaboration name MAGIC

Authors

Daniel Kerszberg Tomohiro Inada (ICRR, University of Tokyo) Moritz Hütten (Institute for Cosmic Ray Research, The University of Tokyo) Javier Rico Masahiro Teshima Kazunori Kohri (KEK) Nagisa Hiroshima

Presentation materials