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Search for Signatures of Dark Matter Annihilation in the Galactic Center with HAWC
R Alfaro1, C Alvarez2, A Andrés3
1Instituto de Física, Universidad Nacional Autónoma de México, Ciudad de Mexico, Mexico.
Abstract:
We conduct an indirect dark matter (DM) search in the vicinity of the Galactic Center, focusing on a square region within ±9° in Galactic longitude and latutide, using 2865 days of data (∼8 yr) from the High-Altitude Water Cherenkov (HAWC) Observatory. We explore DM particles within the weakly interacting massive particles framework with masses from 1 TeV to 10 PeV. Analyzing three annihilation channels (bb[over ¯], τ^{+}τ^{-}, W^{+}W^{-}) and three density profiles (Navarro-Frenk-White, Einasto, Burkert), we find no significant excess and set 95% CL upper limits on the velocity-weighted annihilation cross section. Our results provide the first constraints on DM particles well above 100 TeV using gamma-ray data from the vicinity of the Galactic Center, with the strongest limits O(10^{-24}) cm^{3}/s, from the τ^{+}τ^{-} channel and the Einasto profile.
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