Prospects for joint reconstruction of imaging air Cherenkov Telescope array and extensive air shower array

作     者：Zhang, Zhipeng Yang, Ruizhi Zhang, Shoushan Yin, LiQiao Liu, Jiali Wang, Yudong Ma, Lingling Cao, Zhen 

作者机构：School of Astronomy Space Science University of Science and Technology of China Anhui Hefei230026 China CAS Key Laboratory for Research in Galaxies and Cosmology Department of Astronomy University of Science and Technology of China Anhui Hefei230026 China Deep Space Exploration Laboratory School of Physical Sciences University of Science and Technology of China Hefei230026 China Key Laboratory of Particle Astrophysics Institute of High Energy Physics Beijing China Department of Physics University of Chinese Academy of Sciences Beijing China Tianfu Cosmic Ray Research Center Chengdu China 

出 版 物：《arXiv》 (arXiv)

年 卷 期：2024年

核心收录：

主　　题：Cosmic rays 

摘      要：In this paper, we proposed a joint reconstruction of γ-ray events using both extensive air array (EAS) and Imaging air Cherenkov Telescope array (IACT). We considered eight Cherenkov telescopes to be built on the LHAASO (Large High Altitude Air Shower Observatory) site and investigate the improvement in differential sensitivity when combining the information from both IACT and Moun detectors of LHAASO-KM2A. We found that due to the higher cosmic ray background rejection power and higher gamma ray retention ratio provided by muon detectors of LHAASO, such a joint reconstruction can significantly improve the sensitivity of IACTs, especially for extended sources and long exposure time. The sensitivity of the eight-telescopes array can be improved by 25% − 60% in different energy ranges using joint reconstructions with muon detectors. Copyright © 2024, The Authors. All rights reserved.