利用 HAWC 优化搜寻银河系晕中的暗物质
高能天体物理现象
2023-05-19 v1 宇宙学与河外天体物理
天体物理仪器与方法
高能物理 - 唯象学
摘要
银河系晕是间接暗物质探测的关键目标。高海拔水切伦科夫（HAWC）观测站是一个位于墨西哥中部的高能（约 300 GeV 至 >100 TeV）伽马射线探测器。HAWC 采用水切伦科夫技术运行，具有 2 sr 的宽视场和 >95% 的占空比，使其成为分析高度扩展源的理想工具。我们利用 HAWC 的这些特性以及一种为扩展源优化的新背景估计技术，探测银河系晕的大区域以寻找暗物质信号。借助该方法，我们对 10 至 100 TeV 质量区间内的暗物质湮灭和衰变设定了改进的约束。由于 HAWC 视场空间扩展很大，这些约束对银河系暗物质空间分布轮廓的不确定性具有鲁棒性。
引用
@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}
}
备注
19 pages, 14 figures