首页|Muon energy reconstruction in the high-energy neutrino observa-tions

Muon energy reconstruction in the high-energy neutrino observa-tions

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The reconstruction of muon energies is crucial for the data analysis of neutrino experiments using large water Cherenkov detectors,but the resolution for muon energy reconstruction using traditional methods is poor.Here,we propose a revised approach to remove noisy optical modules along the track produced by the propagation of muons through water.The number of photons on the optical modules is first corrected by the attenuation properties of light in water.Then the difference in time between the observed optical modules and the expected ones is determined based on the geometry of the triggered optical modules.Finally,the standard of correction is measured by the ratio of photon number before and after correction.Optical modules selection conditions were optimized according to these parameters,with most noisy optical modules successfully removed,improving the resolution of muon energy reconstruction.

dE/dx detectorsNeutrino detectorsData processing

Ying Qi、Jiali Liu、Maoyuan Liu、Mingjun Chen、Zike Wang、Tianqi Huang、Peiyuan Chu

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College of Science,Tibet University,Lhasa 850000,China

Key Laboratory of Cosmic Rays,Ministry of Education,Tibet University,Lhasa 850000,China

Institute of High Energy Physics,Chinese Academy of Sciences,Beijing 100049,China

Tianfu Cosmic Ray Research Center,Chengdu 610000,China

University of Chinese Academy of Sciences,Beijing 100049,China

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2024

10.61977/ati2024027

天文研究与技术－国家天文台台刊
中国科学院国家天文台云南天文台

天文研究与技术－国家天文台台刊

影响因子：0.333
ISSN：1672-7673
年,卷(期)：2024.1(3)