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2025
article
Search for Signatures of Dark Matter Annihilation in the Galactic Center with HAWC
Ruben Jose Alfaro, C. Alvarez, Amado Andrés, E. Anita-Rangel, Miguel Araya, J. C. Arteaga-Velázquez, D. Avila Rojas, H. A. Ayala Solares, Rishi Babu, P. Bangale, A. Bernal, K. S. Caballero‐Mora, T. Capistrán, A. Carramiñana, F. Carreón, S. Casanova, A. L. Colmenero-César, U. Cotti, J. Cotzomi, S. Coutinõ de León, E. De la Fuente, Davide Depaoli, P. Desiati, N. Di Lalla, R. Díaz Hernández, B. L. Dingus, M. A. DuVernois, J. C. Díaz–Vélez, K. Engel, T. Ergin, C. Espinoza, K. Fang, N. Fraija, S. Fraija, J. A. Garcéa-González, F. Garfias, Nilanjana Ghosh, Hüseyin Göksu, A. Gonzalez Muñoz, Magda Gonzalez, Jorge A. González, J. A. Goodman, S. Groetsch, J. Gyeong, J. P. Harding, Sergio Hernández Cadena, I. Herzog, J. A. Hinton, Dezhi Huang, F. Hueyotl‐Zahuantitla, P. Hüntemeyer, A. Iriarte, S. Kaufmann, D. Kieda, A. Lara, Keith Leavitt, W. H. Lee, J. S. H. Lee, H. León Vargas, J. Linnemann, A. L. Longinotti, G. Luis-Raya, K. Malone, O. Martı́nez, J. Martínez-Castro, H. Martínez-Huerta, J. Matthews, J. McEnery, P. Miranda-Romagnoli, P. E. Mirón-Enriquez, Jorge Alexis Montes, J. A. Morales-Soto, E. Moreno, M. Mostafá, M. Najafi, A. Nayerhoda, L. Nellen, M. U. Nisa, R. Noriega-Papaqui, N. Omodei, M. Osorio-Archila, E. Ponce, Y. Pérez Araujo, E. G. Pérez‐Pérez, Chang Dong Rho, A. Rodriguez Parra, D. Rosa‐González, M. Roth, Daniel Salazar-Gallegos, A. Sandoval, M. Schneider, José Serna-Franco, A. J. Smith, Y. Son, R. W. Springer, O. Tibolla, K. Tollefson, I. Torres, R. Torres-Escobedo, Rhiannon M. Turner, F. Ureña-Mena, Enrique Varela, L. Villaseñor, X. Wang, Z. Wang, I. J. Watson, Hangyi Wu, S. Yu, S. Yun-Cárcamo, H. Zhou, C. de León
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Résumé fourni par la source
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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Sujets associés
Dark Matter and Cosmic PhenomenaAtomic and Subatomic Physics ResearchScientific Research and Discoveries