Statistical interpretation of the spatial distribution of current 130 GeV gamma-ray line signal within the dark matter annihilation scenario
文献类型：期刊论文
| 作者 | Yang, RZ; 袁强;Yuan, Q; Feng, L; Fan, YZ; Chang, J |
| 刊名 | PHYSICS LETTERS B
 |
| 出版日期 | 2012 |
| 卷号 | 715期号:4-5页码:285-288 |
| 英文摘要 | Recently, several groups identified a tentative gamma-ray line signal with energy similar to 130 GeV in the central Galaxy from the Fermi-EAT data. Such a gamma-ray line can be interpreted as the signal of dark matter annihilation. However, the offset similar to 220 pc (1.5 degrees) of the center of the most prominent signal region from the Galactic center Sgr A* has been thought to challenge the dark matter annihilation interpretation. Considering the fact that such a 130 GeV gamma-ray line signal consists of only similar to 14 photons, we suggest that the "imperfect" consistency of these photons with the expected dark matter distribution is due to the limited statistics. The offset will be smaller as more signal photons have been collected in the near future. Our Monte Carlo simulation supports the above speculation. (c) 2012 Elsevier B.V. All rights reserved. |
| 学科主题 | Physics |
| 收录类别 | SCI |
| WOS记录号 | WOS:000308617500001 |
| 公开日期 | 2016-05-03 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/223926]  |
| 专题 | 高能物理研究所_粒子天体物理中心 |
| 推荐引用方式 GB/T 7714 | Yang, RZ,袁强；Yuan, Q,Feng, L,et al. Statistical interpretation of the spatial distribution of current 130 GeV gamma-ray line signal within the dark matter annihilation scenario[J]. PHYSICS LETTERS B,2012,715(4-5):285-288. |
| APA | Yang, RZ,袁强；Yuan, Q,Feng, L,Fan, YZ,&Chang, J.(2012).Statistical interpretation of the spatial distribution of current 130 GeV gamma-ray line signal within the dark matter annihilation scenario.PHYSICS LETTERS B,715(4-5),285-288. |
| MLA | Yang, RZ,et al."Statistical interpretation of the spatial distribution of current 130 GeV gamma-ray line signal within the dark matter annihilation scenario".PHYSICS LETTERS B 715.4-5(2012):285-288. |
入库方式： OAI收割
来源：高能物理研究所
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