A comparative study on different background estimation methods for extensive air shower arrays
文献类型：期刊论文
| 作者 | Wang, YJ ; Zha, M; Hu, SC; Gao, CD; Zhang, JL; Zhang, X
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| 刊名 | JOURNAL OF INSTRUMENTATION
 |
| 出版日期 | 2022 |
| 卷号 | 17期号:12页码:P12003 |
| 关键词 | Analysis and statistical methods Simulation methods and programs Cherenkov detectors |
| DOI | 10.1088/1748-0221/17/12/P12003 |
| 文献子类 | Article |
| 英文摘要 | Background estimation is essential when studying TeV gamma-ray astronomy for extensive air shower arrays. In this work, by applying four different methods including equi-zenith angle method, surrounding window method, direct integration method, and time-swapping method, the number of the background events is calculated. Based on simulation samples, the statistical significance of the excess signal from different background estimation methods is determined. Following this, we discuss the limitations and the applicability of the four methods under different conditions. Under the detector stability assumption with signals, the results from the above four methods are consistent at the 1 sigma level. In the no signal condition, when the acceptance of the detector changes with both space and time, the surrounding window method is the most stable and hardly affected. In this acceptance assumption, we find that the background estimation in the direct integration and time-swapping methods are sensitive to the selection of time window, and the shorter time window can reduce the impact on the background estimation to some extent. |
| 电子版国际标准刊号 | 1748-0221 |
| 语种 | 英语 |
| WOS记录号 | WOS:000902140200006 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/299704]  |
| 专题 | 高能物理研究所_粒子天体物理中心 高能物理研究所_实验物理中心 高能物理研究所_核技术应用研究中心 |
| 作者单位 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Wang, YJ,Zha, M,Hu, SC,et al. A comparative study on different background estimation methods for extensive air shower arrays[J]. JOURNAL OF INSTRUMENTATION,2022,17(12):P12003. |
| APA | Wang, YJ,Zha, M,Hu, SC,Gao, CD,Zhang, JL,&Zhang, X.(2022).A comparative study on different background estimation methods for extensive air shower arrays.JOURNAL OF INSTRUMENTATION,17(12),P12003. |
| MLA | Wang, YJ,et al."A comparative study on different background estimation methods for extensive air shower arrays".JOURNAL OF INSTRUMENTATION 17.12(2022):P12003. |
入库方式： OAI收割
来源：高能物理研究所
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