PoS - Proceedings of Science
Volume 444 - 38th International Cosmic Ray Conference (ICRC2023) - Gamma-ray Astronomy (GA)
Search for Dark Matter Annihilation Signals in the Galactic Center Halo with VERITAS
J.L. Ryan
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Pre-published on: July 25, 2023
Published on:
Gamma-ray observations of the Galactic Center (GC) region provide some of the most sensitive measurements of annihilation signals from dark matter in the GeV-TeV mass range.
We present the first results from 178 hours of VERITAS observations of a 2 degree region around the GC, taken between 2010 and 2022.
The analysis uses a newly-developed template-based background method, as well as analysis techniques optimized for observations taken at large zenith angles.
No significant excess is found in any region of interest considered.
We derive model-independent limits on the dark matter thermally-averaged annihilation cross section which are among the strongest from any indirect detection experiment for TeV-scale masses.
DOI: https://doi.org/10.22323/1.444.0794
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