HAWC 对高质量暗物质湮灭的灵敏度
高能天体物理现象
2014-12-17 v2 宇宙学与河外天体物理
高能物理 - 唯象学
摘要
高海拔水切伦科夫（HAWC）天文台是一个宽视场探测器，对 100 GeV 至几百 TeV 的伽马射线敏感。HAWC 位于墨西哥中部，北纬 19 度，海拔 4100 米，将通过水切伦科夫探测器阵列观测伽马射线和宇宙线。HAWC 完整阵列计划于 2015 年春季投入运行。在本文中，我们研究了 HAWC 对高质量（多 TeV）暗物质湮灭伽马射线信号的灵敏度。HAWC 天文台将对多种暗物质湮灭搜寻敏感，包括来自延展暗物质源的湮灭、来自暗物质湮灭的弥漫伽马射线辐射，以及来自非发光暗物质子晕的伽马射线辐射。此处我们考虑 HAWC 对这些源子集的灵敏度，包括矮星系、M31 星系、室女座星系团和银河系中心。我们在几个动机充分的暗物质湮灭通道中模拟了 HAWC 对这些源发出的伽马射线的响应。如果未观测到伽马射线超出，我们将展示 HAWC 能对这些源的暗物质截面施加的限制。特别是，在暗物质湮灭为规范玻色子的情况下，HAWC 将能够探测到窄范围的暗物质质量，其截面低于热产生截面。HAWC 还应对高达近 1000 TeV 质量的非热截面敏感。HAWC 对已知源暗物质截面施加的限制，在 HAWC 具有相似灵敏度的质量范围内，应与当前限制具有竞争力。此外，HAWC 还能探索目前尚未受约束的更高暗物质质量。
引用
@article{arxiv.1405.1730,
title = {The Sensitivity of HAWC to High-Mass Dark Matter Annihilations},
author = {A. U. Abeysekara and R. Alfaro and C. Alvarez and J. D. Alvarez and R. Arceo and J. C. Arteaga-Velazquez and H. A. Ayala Solares and A. S. Barber and B. M. Baughman and N. Bautista-Elivar and J. Becerra Gonzalez and E. Belmont and S. Y. BenZvi and D. Berley and M. Bonilla Rosales and J. Braun and R. A. Caballero-Lopez and K. S. Caballero-Mora and A. Carraminana and M. Castillo and U. Cotti and J. Cotzomi and E. de la Fuente and C. De Leon and T. DeYoung and R. Diaz Hernandez and L. Diaz-Cruz and J. C. Diaz-Velez and B. L. Dingus and M. A. DuVernois and R. W. Ellsworth and S. F. E. and D. W. Fiorino and N. Fraija and A. Galindo and F. Garfias and M. M. Gonzalez and J. A. Goodman and V. Grabski and M. Gussert and Z. Hampel-Arias and J. P. Harding and C. M. Hui and P. Huentemeyer and A. Imran and A. Iriarte and P. Karn and D. Kieda and G. J. Kunde and A. Lara and R. J. Lauer and W. H. Lee and D. Lennarz and H. Leon Vargas and E. C. Linares and J. T. Linnemann and M. Longo and R. Luna-Garcia and A. Marinelli and H. Martinez and O. Martinez and J. Martinez-Castro and J. A. J. Matthews and J. McEnery and E. Mendoza Torres and P. Miranda-Romagnoli and E. Moreno and M. Mostafa and L. Nellen and M. Newbold and R. Noriega-Papaqui and T. Oceguera-Becerra and B. Patricelli and R. Pelayo and E. G. Perez-Perez and J. Pretz and C. Riviere and D. Rosa-Gonzalez and J. Ryan and H. Salazar and F. Salesa and A. Sandoval and M. Schneider and S. Silich and G. Sinnis and A. J. Smith and K. Sparks Woodle and R. W. Springer and I. Taboada and P. A. Toale and K. Tollefson and I. Torres and T. N. Ukwatta and L. Villasenor and T. Weisgarber and S. Westerhoff and I. G. Wisher and J. Wood and G. B. Yodh and P. W. Younk and D. Zaborov and A. Zepeda and H. Zhou and K. N. Abazajian},
journal= {arXiv preprint arXiv:1405.1730},
year = {2014}
}
备注
15 pages, 4 figures, version to be published in PRD