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arXiv 1901.10340hep-exphysics.ins-det
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JUNO探测器的高能e-μ分辨

e-μ Discrimination at High Energy in the JUNO Detector

Giulio Settanta, Stefano Maria Mari, Cristina Martellini, Paolo Montini

摘要:

利用大气中微子可以研究宇宙线和中微子振荡物理。JUNO(江门地下中微子天文台)是一个大型的液体闪烁体探测器,具有低能量探测阈值和优异的能量分辨率。探测器性能允许大气中微子振荡测量。本文提出了一种在GeV/sub-GeV能区判别JUNO液体闪烁体中中微子-核子相互作用不同反应通道的算法。以大气中微子通量为参考,考虑了$\overset{(-)}{ν_μ}$和$\overset{(-)}{ν_e}$。不同的时间行为的类的事件已被利用,以建立一个基于时间剖面的歧视算法。结果表明,$\overset{(-)}{ν_e}$ CC事件的良好的选择能力,而$\overset{(-)}{ν_μ}$ CC组件遭受的重要污染,从NC事件在低能量,这是正在研究中。初步结果。

英文摘要:

Cosmic Ray and neutrino oscillation physics can be studied by using atmospheric neutrinos. JUNO (Jiangmen Underground Neutrino Observatory) is a large liquid scintillator detector with low energy detection threshold and excellent energy resolution. The detector performances allow the atmospheric neutrino oscillation measurements. In this work, a discrimination algorithm for different reaction channels of neutrino-nucleon interactions in the JUNO liquid scintillator, in the GeV/sub-GeV energy region, is presented. The atmospheric neutrino flux is taken as reference, considering $\overset{(-)}{ν_μ}$ and $\overset{(-)}{ν_e}$. The different temporal behaviour of the classes of events have been exploited to build a time profile-based discrimination algorithm. The results show a good selection power for $\overset{(-)}{ν_e}$ CC events, while the $\overset{(-)}{ν_μ}$ CC component suffers of an important contamination from NC events at low energy, which is under study. Preliminary results are presented.

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。

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