arXivDaily arXiv每日学术速递 周一至周五更新
北美退伍军人节(Veterans Day),12 日无更新
arXiv 2103.11939physics.ins-det
收藏

在JUNO探测器中用卷积神经网络重建μ子

Muon reconstruction with a convolutional neural network in the JUNO detector

Yan Liu, Weidong Li, Tao Lin, Wenxing Fang, Simon C. Blyth, Jilei Xu, Miao He, Kun Zhang

摘要:

江门地下中微子观测站(JUNO)是为确定中微子质量序和测量中微子振荡参数而设计的。精确的μ子重建是减少宇宙μ子诱导的主要背景之一的关键。提出了一种基于卷积神经网络(CNN)模型的μ子重建方法。该方法利用顶端跟踪器重构的航迹信息进行网络训练。通过对μ子轨道应用旋转来增强训练数据集,以补偿顶部跟踪器的有限角度覆盖。利用CNN模型重建的μ子轨道具有空间分辨率优于10 cm,角分辨率优于0.6 °的无偏性能。通过使用GPU加速的实现,与现有的CPU技术相比,加速因子为100。

英文摘要:

The Jiangmen Underground Neutrino Observatory (JUNO) is designed to determine the neutrino mass ordering and measure neutrino oscillation parameters. A precise muon reconstruction is crucial to reduce one of the major backgrounds induced by cosmic muons. This article proposes a novel muon reconstruction method based on convolutional neural network (CNN) models. In this method, the track information reconstructed by the top tracker is used for network training. The training dataset is augmented by applying a rotation to muon tracks to compensate for the limited angular coverage of the top tracker. The muon reconstruction with the CNN model can produce unbiased tracks with performance that spatial resolution is better than 10 cm and angular resolution is better than 0.6 degrees. By using a GPU accelerated implementation a speedup factor of 100 compared to existing CPU techniques has been demonstrated.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑