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Study of off-axis neutrino beam production and the handling for a long-baseline neutrino oscillation experiment

离轴中微子束产生和长基线中微子振荡实验处理的研究

基本信息

批准号：
17340076
负责人：
NAKAYA Tsuyoshi
金额：
$ 7.94万
依托单位：
Kyoto University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
2005
资助国家：
日本
起止时间：
2005 至 2006
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-17340076/
关键词：
High Energy Physics Radiation, X-ray, Particle beam Accelerator Neutrino Beam Monitor Detector Neutrino Oscillation Nuclear Effect ニュートリノ質量フレーバー物理ニュートリノ反応

项目摘要

In this research, we have studied the production method and control of an off-axis neutrino beam for the Tokai-Kamioka Neutrino Oscillation Experiment (T2K) for the first time. In T2K, we will search for the unknown neutrino mixing angle, θ_<13>, and will measure the mixing angle θ_<23> and the mass square difference Δm_<23>^2 with the best precision. The off-axis neutrino beam is a key element in T2K. We have the following five achievements in this research.(1) Precise measurement of neutrino oscillation parameters, which results in the optimization of the off-axis beam.(2) Better understanding of the neutrino beam production by measuring the hadron production spectra in the CERN HARP experiment.(3) We developed the muon beam-monitor, and conduct the beam test with the proto-type detector.(4) We developed the neutrino beam-monitor, and made and tested the proto-type detector.(5) We turn on the new neutrino experiment FNAL E954, called SciBooNE to understand the neutrino interaction more precisely for T2K.With the above five achievements, we can understand the off-axis neutrino beam properties much better than before.

在本研究中，我们首次研究了东海神冈中微子振荡实验（T2K）的离轴中微子束的产生方法和控制。在T2K中，我们将寻找未知的中微子混合角θ_<13>，并以最佳精度测量混合角θ_<23>和质量平方差Δ <23>m^2。离轴中微子束是T2K中的关键元素。本研究取得了以下五个方面的成果。(1)精确测量中微子振荡参数，从而优化离轴束流。(2)通过测量CERN HARP实验中的强子产生谱更好地理解中微子束的产生。(3)我们研制了μ子束流监测器，并利用样机进行了束流测试。(4)我们研制了中微子束监测器，并制作和测试了原型探测器。(5)为了更精确地研究T2K的中微子相互作用，我们启动了新的中微子实验FNAL E954（SciBooNE）。