An optimized search for dark matter in the galactic halo with HAWC
Abstract
The Galactic Halo is a key target for indirect dark matter detection. The High Altitude Water Cherenkov (HAWC) observatory is a high-energy (~300 GeV to >100 TeV) gamma-ray detector located in central Mexico. HAWC operates via the water Cherenkov technique and has both a wide field of view of 2 sr and a >95% duty cycle, making it ideal for analyses of highly extended sources. We made use of these properties of HAWC and a new background-estimation technique optimized for extended sources to probe a large region of the Galactic Halo for dark matter signals. With this approach, we set improved constraints on dark matter annihilation and decay between masses of 10 and 100 TeV. Due to the large spatial extent of the HAWC field of view, these constraints are robust against uncertainties in the Galactic dark matter spatial profile.
Keywords
Cite
@article{arxiv.2305.09861,
title = {An optimized search for dark matter in the galactic halo with HAWC},
author = {A. Albert and R. Alfaro and C. Alvarez and J. C. Arteaga-Velazquez and D. Avila Rojas and H. A. Ayala Solares and E. Belmont-Moreno and K. S. Caballero-Mora and T. Capistran and A. Carraminana and S. Casanova and O. Chaparro-Amaro and U. Cotti and J. Cotzomi and E. De la Fuente and R. Diaz Hernandez and B. L. Dingus and M. A. DuVernois and M. Durocher and J. C. Dıaz-Velez and C. Espinoza and K. L. Fan and N. Fraija and J. A. Garcıa-Gonzalez and F. Garfias and M. M. Gonzalez and J. A. Goodman and J. P. Harding and D. Huang and F. Hueyotl-Zahuantitla and A. Iriarte and V. Joshi and G. J. Kunde and J. Lee and H. Leon Vargas and J. T. Linnemann and A. L. Longinotti and G. Luis-Raya and J. Lundeen and K. Malone and O. Martinez and J. Martınez-Castro and J. A. Matthews and E. Moreno and M. Mostafa and A. Nayerhoda and L. Nellen and A. Peisker and E. G. Perez-Perez and C. D. Rho and D. Rosa-Gonzalez and H. Salazar and D. Salazar-Gallegos and A. Sandoval and J. Serna-Franco and R. W. Springer and O. Tibolla and K. Tollefson and I. Torres and R. Torres-Escobedo and R. Turner and F. Urena-Mena and L. Villasenor and X. Wang and H. Zhou and C. de Leon},
journal= {arXiv preprint arXiv:2305.09861},
year = {2023}
}
Comments
19 pages, 14 figures