Xinshun Zhang, Jinjing Li, Shaomin Chen, Wei Dou, Haoyang Fu, Ye Liang, Qian Liu, Wentai Luo, Ming Qi, Wenhui Shao, Haozhe Sun, Jian Tang, Yuyi Wang, Zhe Wang, Changxu Wei, Jun Weng, Yiyang Wu, Benda Xu, Chuang Xu, Tong Xu, Yuzi Yang, Aiqiang Zhang, Bin Zhang
{"title":"360 GeV Μ介子的宇宙中子产生研究","authors":"Xinshun Zhang, Jinjing Li, Shaomin Chen, Wei Dou, Haoyang Fu, Ye Liang, Qian Liu, Wentai Luo, Ming Qi, Wenhui Shao, Haozhe Sun, Jian Tang, Yuyi Wang, Zhe Wang, Changxu Wei, Jun Weng, Yiyang Wu, Benda Xu, Chuang Xu, Tong Xu, Yuzi Yang, Aiqiang Zhang, Bin Zhang","doi":"arxiv-2409.04169","DOIUrl":null,"url":null,"abstract":"The China Jinping underground Laboratory (CJPL) is an excellent location for\nstudying solar, terrestrial, and supernova neutrinos due to its 2400-meter\nvertical rock overburden. Its unparalleled depth gives an opportunity to\ninvestigate the cosmic-ray muons with exceptionally high average energy at\n$\\sim360$ GeV. This paper details a study of muon-related backgrounds based on\n1178 days of data collected by the 1-ton prototype neutrino detector used for\nthe Jinping Neutrino Experiment (JNE) since 2017. The apparent effects of\ndetectors' finite size on the measured result are first discussed in detail.\nThe analysis of 493 cosmic-ray muon candidates and $13.6\\pm5.7$ cosmogenic\nneutron candidates, along with a thorough evaluation of detection efficiency\nand uncertainties, gives a muon flux of\n$(3.56\\pm0.16_{\\mathrm{stat.}}\\pm0.10_{\\mathrm{syst.}})\\times10^{-10}~\\mathrm{cm}^{-2}\\mathrm{s^{-1}}$\nand a cosmogenic neutron yield of $(3.37\\pm 1.41_{\\mathrm{stat.}}\\pm\n0.31_{\\mathrm{sys.}}) \\times 10^{-4}~\\mathrm{\\mu}^{-1} \\mathrm{g}^{-1}\n\\mathrm{cm}^{2}$ in LAB-based liquid scintillator.","PeriodicalId":501181,"journal":{"name":"arXiv - PHYS - High Energy Physics - Experiment","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Study of Cosmogenic Neutron Production for $\\\\sim$360 GeV Muons\",\"authors\":\"Xinshun Zhang, Jinjing Li, Shaomin Chen, Wei Dou, Haoyang Fu, Ye Liang, Qian Liu, Wentai Luo, Ming Qi, Wenhui Shao, Haozhe Sun, Jian Tang, Yuyi Wang, Zhe Wang, Changxu Wei, Jun Weng, Yiyang Wu, Benda Xu, Chuang Xu, Tong Xu, Yuzi Yang, Aiqiang Zhang, Bin Zhang\",\"doi\":\"arxiv-2409.04169\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The China Jinping underground Laboratory (CJPL) is an excellent location for\\nstudying solar, terrestrial, and supernova neutrinos due to its 2400-meter\\nvertical rock overburden. Its unparalleled depth gives an opportunity to\\ninvestigate the cosmic-ray muons with exceptionally high average energy at\\n$\\\\sim360$ GeV. This paper details a study of muon-related backgrounds based on\\n1178 days of data collected by the 1-ton prototype neutrino detector used for\\nthe Jinping Neutrino Experiment (JNE) since 2017. The apparent effects of\\ndetectors' finite size on the measured result are first discussed in detail.\\nThe analysis of 493 cosmic-ray muon candidates and $13.6\\\\pm5.7$ cosmogenic\\nneutron candidates, along with a thorough evaluation of detection efficiency\\nand uncertainties, gives a muon flux of\\n$(3.56\\\\pm0.16_{\\\\mathrm{stat.}}\\\\pm0.10_{\\\\mathrm{syst.}})\\\\times10^{-10}~\\\\mathrm{cm}^{-2}\\\\mathrm{s^{-1}}$\\nand a cosmogenic neutron yield of $(3.37\\\\pm 1.41_{\\\\mathrm{stat.}}\\\\pm\\n0.31_{\\\\mathrm{sys.}}) \\\\times 10^{-4}~\\\\mathrm{\\\\mu}^{-1} \\\\mathrm{g}^{-1}\\n\\\\mathrm{cm}^{2}$ in LAB-based liquid scintillator.\",\"PeriodicalId\":501181,\"journal\":{\"name\":\"arXiv - PHYS - High Energy Physics - Experiment\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2024-09-06\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"arXiv - PHYS - High Energy Physics - Experiment\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/arxiv-2409.04169\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"arXiv - PHYS - High Energy Physics - Experiment","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/arxiv-2409.04169","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Study of Cosmogenic Neutron Production for $\sim$360 GeV Muons
The China Jinping underground Laboratory (CJPL) is an excellent location for
studying solar, terrestrial, and supernova neutrinos due to its 2400-meter
vertical rock overburden. Its unparalleled depth gives an opportunity to
investigate the cosmic-ray muons with exceptionally high average energy at
$\sim360$ GeV. This paper details a study of muon-related backgrounds based on
1178 days of data collected by the 1-ton prototype neutrino detector used for
the Jinping Neutrino Experiment (JNE) since 2017. The apparent effects of
detectors' finite size on the measured result are first discussed in detail.
The analysis of 493 cosmic-ray muon candidates and $13.6\pm5.7$ cosmogenic
neutron candidates, along with a thorough evaluation of detection efficiency
and uncertainties, gives a muon flux of
$(3.56\pm0.16_{\mathrm{stat.}}\pm0.10_{\mathrm{syst.}})\times10^{-10}~\mathrm{cm}^{-2}\mathrm{s^{-1}}$
and a cosmogenic neutron yield of $(3.37\pm 1.41_{\mathrm{stat.}}\pm
0.31_{\mathrm{sys.}}) \times 10^{-4}~\mathrm{\mu}^{-1} \mathrm{g}^{-1}
\mathrm{cm}^{2}$ in LAB-based liquid scintillator.
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