Speaker
Dr
Quanbu Gou
(Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, P.O. Box 918, 100049 Beijing, China)
Description
LHAASO-KM2A is a sub-array of the Large High Altitude Air Shower Observatory (LHAASO) with an area of 1.3 km2. It consists of 5195 electromagnetic detectors (EDs, 1 m2 each) and 1171 muon detectors (MDs, 36 m2 each). Horizontal Air Showers (HAS) are a fundamental tool to detect penetrating particles like neutrinos and to study hadronic interactions. HAS detected at ground are mainly constituted by secondary muons. In this contribution first observations of HAS with EDs of LHAASO-KM2A are reported. We discuss the zenith angle distribution of EAS and the transition from electromagnetic-dominated showers to muon-dominated ones above a zenith angle of 60 degree. Muon contents together with hadronic interaction models will also be discussed.
Keywords
horizontal air showers;muon contents; hadronic interaction models
| Subcategory | Experimental Results |
|---|---|
| Collaboration | Lhaaso |
Primary authors
Dr
Quanbu Gou
(Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, P.O. Box 918, 100049 Beijing, China)
Dr
Zhuo Li
(Department of Astronomy, School of Physics, Peking University, 100871 Beijing, China)
Dr
Giuseppe Di Sciascio
(INFN - Sezione Roma Tor Vergata, I-00133 Roma, Italy)
Dr
Chao Hou
( Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, P.O. Box 918, 100049 Beijing, China)
Dr
Jiangtao Liu
(Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, P.O. Box 918, 100049 Beijing, China)
Dr
Xiaochuan Chang
(Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, P.O. Box 918, 100049 Beijing, China)
Dr
Hongkui Lv
(Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, P.O. Box 918, 100049 Beijing, China)
Dr
Lili Yang
(School of Physics and Astronomy, Sun Yat-sen University, 519000 Zhuhai, Guangdong, China)
Dr
Sujie Lin
( School of Physics and Astronomy, Sun Yat-sen University, 519000 Zhuhai, Guangdong, China)
Dr
Andrea Addazi
(College of Physics, Sichuan University, 610065 Chengdu, Sichuan, China)
Dr
Xuewen Liu
(College of Physics, Sichuan University, 610065 Chengdu, Sichuan, China)
Dr
Mingming Kang
(College of Physics, Sichuan University, 610065 Chengdu, Sichuan, China)
Dr
Antonino Marciano
(Department of Physics, Fudan University, 200438 Shanghai, China)
Dr
Jinsheng Gou
(College of Materials Science and Technology, Beijing Forestry University, 100083 Beijing, China)
Dr
Shiyu Yin
(School of Mechanical and Material Engineering, North China University of Technology, 100144 Beijing, China )
Ms
Yaping Wang
(Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, P.O. Box 918, 100049 Beijing, China)
Mr
Zihan Yang
(Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, P.O. Box 918, 100049 Beijing, China)
Mr
Xishui Tian
(Department of Astronomy, School of Physics, Peking University, 100871 Beijing, China)
Mr
Qinyuan Zhang
(Department of Astronomy, School of Physics, Peking University, 100871 Beijing, China)
Mr
Chengyu Shao
(School of Physics and Astronomy, Sun Yat-sen University, 519000 Zhuhai, Guangdong, China)
Mr
Zhibo Yu
(Department of Physics, Fudan University, 200438 Shanghai, China)
Mr
Jiaming Li
(Department of Physics, Fudan University, 200438 Shanghai, China)
Mr
Qunfeng Jiang
(Department of Physics, Fudan University, 200438 Shanghai, China)
Mr
Lin Liu
( School of Mechanical and Material Engineering, North China University of Technology, 100144 Beijing, China )
Mr
Jie Dou
(College of Physics, Sichuan University, 610065 Chengdu, Sichuan, China)
Mr
Xuwei Ou
(College of Physics, Sichuan University, 610065 Chengdu, Sichuan, China)
Mr
Yukun Xue
(College of Physics, Sichuan University, 610065 Chengdu, Sichuan, China)
Mr
lingyi Fu
(College of Physics, Sichuan University, 610065 Chengdu, Sichuan, China)
Mr
Qianxun Zuo
(College of Physics, Sichuan University, 610065 Chengdu, Sichuan, China)
Mr
Zhiheng Wang
(College of Physics, Sichuan University, 610065 Chengdu, Sichuan, China)
Mr
Yuanqing Wang
(College of Physics, Sichuan University, 610065 Chengdu, Sichuan, China)
Mr
Chenyang Gong
(College of Physics, Sichuan University, 610065 Chengdu, Sichuan, China)
