In this paper we proposed a joint reconstruction of \gray 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. In this article, we have shown the performance of an eight-telescopes mini array, and our results indicate that above 10TeV, the sensitivity can be improved by muon detector from 25%−60% in different energy ranges.
@article{arxiv.2402.11286,
title = {Prospects for joint reconstruction of imaging air Cherenkov Telescope array and extensive air shower array},
author = {Zhipeng Zhang and Ruizhi Yang and Shoushan Zhang and Liqiao Yin and Jiali Liu and Yudong Wang and Lingling Ma and Zhen Cao},
journal= {arXiv preprint arXiv:2402.11286},
year = {2024}
}