论文标题
背景拒绝使用来自大气望远镜的大型望远镜的图像残差大气Cherenkov望远镜阵列
Background rejection using image residuals from large telescopes in imaging atmospheric Cherenkov telescope arrays
论文作者
论文摘要
已经提出，识别由Muons产生的Cherenkov光，是一种有希望的有希望的方法，可以显着提高高能成像大气Cherenkov望远镜（IACT）阵列的背景排斥能力。但是，MUON识别仍然是一项具有挑战性的任务，为此仍在开发有效的算法。我们提出了一种方法，在这种方法中，除了识别若恩的Cherenkov光而不是识别Cherenkov的光，我们只是考虑了具有较大镜面区域的IACT的主要淋浴图像以外的其他淋浴图像。我们表明，对于H.E.S.S.五个望远镜的阵列这种方法在1 TEV以上的所有能量上都会导致背景排斥改善。特别是，在20 tev以上的Energies上，可以通过$ \ sim3-4 $提高拒绝功率，同时保留原始伽马射线效率的$ \ sim90 \％$。
Identification of Cherenkov light generated by muons has been suggested as a promising way to dramatically improve the background rejection power of Imaging Atmospheric Cherenkov Telescope (IACT) arrays at high energies. However, muon identification remains a challenging task, for which efficient algorithms are still being developed. We present an approach in which, rather than identifying Cherenkov light from muons, we simply consider the presence of Cherenkov light other than the main shower image in IACTs with large mirror area. We show that in the case of the H.E.S.S. array of five telescopes this approach results in background rejection improvements at all energies above 1 TeV. In particular, the rejection power can be improved by a factor $\sim3-4$ at energies above 20 TeV while keeping $\sim90\%$ of the original gamma-ray efficiency.
