摘要: HERD is the High Energy cosmic-Radiation Detection instrument proposed to operate onboard China's space station in the 2020s. It is designed to detect energetic cosmic ray nuclei, leptons and photons with a high energy resolution (∼1% for electrons and photons and 20% for nuclei) and a large geometry factor (>3m2sr for electrons and diffuse photons and >2m2sr for nuclei). In this work we discuss the capability of HERD to detect monochromatic γ-ray lines, based on simulations of the detector performance. It is shown that HERD will be one of the most sensitive instruments for monochromatic γ-ray searches at energies between ∼10 to a few hundred GeV. Above hundreds of GeV, Cherenkov telescopes will be more sensitive due to their large effective area. As a specific example, we show that a good portion of the parameter space of a supersymmetric dark matter model can be probed with HERD.
-
分类:
物理学
>>
核物理学
-
引用:
ChinaXiv:201609.00993
(或此版本
ChinaXiv:201609.00993V1)
DOI:10.12074/201609.00993V1
CSTR:32003.36.ChinaXiv.201609.00993.V1
- 推荐引用方式:
Xiaoyuan Huang,Anna S. Lamperstorfer,Yue-Lin Sming Tsai,Ming Xu,Qiang Yuan Jin Chang,Yong-Wei Dong,Bing-Liang Hu,Jun-Guang L╱,Le Wang,Bo-Bing Wu,Shuang-Nan Zhang.(2016).Perspective of monochromatic gamma-ray line detection with the High Energy cosmic-Radiation Detection (HERD) facility onboard China’s space station.中国科学院科技论文预发布平台.[ChinaXiv:201609.00993]
(点此复制)