Measurement of the cosmic ray proton and helium spectrum with energy above 100TeV by the LHAASO experiment

被引：0
|
作者：
Ma Lingling [1 ,3 ]
Wang Yudong [1 ,3 ]
Wang Liping [1 ,4 ]
Yin Liqiao [1 ,3 ]
You Zhiyong [1 ,2 ,3 ]
Zhang Shoushan [1 ,3 ]
机构：
[1] Chinese Acad Sci, Inst High Energy Phys, YuQuan Rd 19B, Beijing, Peoples R China
[2] Univ Chinese Acad Sci, YuQuan Rd 19A, Beijing, Peoples R China
[3] TIANFU Cosm Ray Res Ctr, Chengdu, Sichuan, Peoples R China
[4] Shandong Univ, Qingdao, Shandong, Peoples R China
来源：
37TH INTERNATIONAL COSMIC RAY CONFERENCE, ICRC2021 | 2022年
基金：
国家重点研发计划;
关键词：
D O I：
暂无
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Large High Altitude Air Shower Observatory (LHAASO) consists of three interconnected detectors with the aim to measure several air shower characteristics simultaneously. One of the main scientific goals is to measure the individual cosmic ray spectrum at knee regime. In this paper we introduce the progress of measuring the energy spectrum of proton and helium composition of cosmic rays. According to the number of Cherenkov photons recorded by WFCTA, the energies can be reconstructed and the resolution can achieve 15% for showers produced by protons and helium with energies above 300 TeV. Due to the hybrid observation to the air showers, several parameters can be used to identify the mass compositions of the air shower. The ability of LHAASO to identify the mass composition are studied in detail in the paper.
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页数：10
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