Variations of secondary particle arrival time detected by LHAASO-KM2A during thunderstorms
文献类型：会议论文
| 作者 | Chen, Xuejian25; Zhou, Xunxiu25; Yang, Ci25; Huang, Daihui25; Cao, Zhen22,23,24; Aharonian, F.20,21; An, Q18,19; Axikegu17; Bai,Y.X.22,24; Bao,Y.W.16 |
| 出版日期 | 2024-09-27 |
| 会议日期 | 2023-07-26 |
| 会议地点 | Nagoya, Japan |
| 卷号 | 444 |
| DOI | 10.22323/1.444.0182 |
| 英文摘要 | A sub-array of the Large High Altitude Air Shower Observatory (LHAASO), KM2A contains 5216 electromagnetic particle detectors (EDs) and 1188 muon detectors (MDs). For each shower event that meets the trigger conditions (at least 20 fired EDs within a time window of 400 ns) in KM2A array, there are many signals from ED and MD detectors. The information on the arrival time and location of each signal are recorded, and the ED hits are used for shower reconstruction. Due to the acceleration and deflection by the atmospheric electric field (AEF) during a thunderstorm, the arrival time and position of the ground-level particles are modified, resulting in the changes in the inferred shower detection. To understand the shower event variation during thunderstorms, the particle arrival time is studied by analyzing the KM2A data. We can measure the distribution of changes of arrival time in the thunderstorm electric field. The variation amplitude is not only dependent on the AEF, but also highly correlated with the direction of the shower event. With the increase of the AEF strength and the zenith angle, the variation in amplitude of the arrival time becomes larger. Our results are useful in understanding the variation of shower rate detected by LHAASO-KM2A, and will also provide important information for shower reconstruction during thunderstorms. © Copyright owned by the author(s) under the terms of the Creative Commons. |
| 产权排序 | 第27完成单位 |
| 资助机构 | National Natural Science Foundation of China[U2031101] ; National Key Research and Development Program of China[2018YFA0404201] |
| 会议录 | Proceedings of Science
 |
| 文献子类 | Conference article (CA) |
| 学科主题 | 天文学 ; 天体物理学 ; 高能天体物理学 ; 星系与宇宙学 |
| 语种 | 英语 |
| URL标识 | 查看原文 |
| 资助项目 | National Natural Science Foundation of China[U2031101];National Key Research and Development Program of China[2018YFA0404201] |
| 源URL | [http://ir.ynao.ac.cn/handle/114a53/27929]  |
| 专题 | 星系类星体研究组 |
| 作者单位 | 1.College of Physics, Sichuan University, Sichuan, Chengdu, 610065, China; 2.APC, Université Paris Cité, CNRS, IN2P3, CEA, IRFU, Observatoire de Paris, Paris, 119 75205, France; 3.Institute of Frontier and Interdisciplinary Science, Shandong University, Shandong, Qingdao, 266237, China; 4.Département de Physique Nucléaire et Corpusculaire, Faculté de Sciences, Université de Genève, 24 Quai Ernest Ansermet, Geneva, 1211, Switzerland; 5.School of Physics and Astronomy, Yunnan University, Yunnan, Kunming, 650091, China; 6.Sino-French Institute of Nuclear Engineering and Technology, Sun Yat-sen University, Zhuhai, 519000, China; 7.School of Physics, Sun Yat-sen University, Guangdong, Guangzhou, 510275, China; 8.School of Physics and Astronomy, Sun Yat-sen University, Zhuhai, 519000, China; 9.National Astronomical Observatories, Chinese Academy of Sciences, Beijing, 100101, China; 10.Key Laboratory of Cosmic Rays, Tibet University, Ministry of Education, Tibet, Lhasa, 850000, China; |
| 推荐引用方式 GB/T 7714 | Chen, Xuejian,Zhou, Xunxiu,Yang, Ci,et al. Variations of secondary particle arrival time detected by LHAASO-KM2A during thunderstorms[C]. 见:. Nagoya, Japan. 2023-07-26. |
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来源：云南天文台
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