Synthetic Studies on Neutrino Physics

中微子物理综合研究

基本信息

批准号：
08304022
负责人：
SUZUKI Atsuto
金额：
$ 12.93万
依托单位：
TOHOKU UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (A)
财政年份：
1996
资助国家：
日本
起止时间：
1996 至 1998
项目状态：
已结题

项目摘要

The purpose of the research is to promote synthetic studies on neutrino physics based on the examination of various experimental methods and theoretical tools. Following results have been obtained in the three years of the project term.Purpose 1. [Investigation of the long base-line neutrino oscillation experiments using accelerators and reactors] As for the accelerator-based long base-line neutrino oscillation experiment, preparation of the K2K experiment in which neutrino beams are shot on the SuperKamiokande has progressed ; construction of the neutrino beam line and the front detector has been over and the experiment has been entered into the beam tuning. The experiment will be started within 12 months. The neutrino oscillation experiment, KamLAND, which measures the anti-neutrino flux from reactors using a 1000ton liquid scintillator detector has finished the development of the 17-inch high performance photo-multiplier tube and started the mass production. Studies and developments … More of the liquid scintillator and the-plastic vessel for the liquid scintillator have made a good progress. The start of the experiments aimed in 2001Purpose 2. [Studies on short base-line neutrino oscillation experiments with accelerators and reactors] Data analysis of the CHORUS experiment which is a collaboration of Nagoya university and European institutes has made a progress and they reported results of the nu_e-nu_e oscillation to provide a new area of exclusion of neutrinooscillation parameters.Purpose 3. [Experimental and theoretical studies on the anomaly of the atmospheric neutrino) SuperKamiokande has reported the results on the zenith angle distribution of electrons and muons produced by nu_e and nu_<zeta> and showed the decrease of the muons according to the flight distance. This indicates the nu_<mu>-_<zeta> oscillation and is a big discovery to show the finite mass of the tau-neutrino.Purpose 4. [Experimental and theoretical studies on the solar neutrino deficit] SuperKamiokandehas made analyses of the overwhelmingly high statistics data and strongly restricted the solution of the solar neutrino deficit problem. From now on it aims to discover the nu_<epsilon> nu_<mu> oscillation by furtheraccumulationof the data.During the three years of the project term research meetings attended by several tens of researchers were held every year at Miyako, Hachimantai and O-funato to report the results and make discussions and investigations to plan promotion of the studies. Less

该研究的目的是基于对各种实验方法和理论工具的检查来促进神经元物理学的合成研究。在项目术语的三年中获得了以下结果。Purpose1。神经元束系的构建和前探测器已经结束，实验已输入到梁调节中。实验将在12个月内开始。神经元振荡实验Kamland，它使用1000吨液体闪烁体检测器测量反应器的抗中性通量，已经完成了17英寸高性能照相型光型管的发展，并开始了批量生产。研究和发展……更多的液体闪光灯和液体闪烁体的塑料容器取得了良好的进步。针对2001年的实验的开始2。 [关于大气神经元异常的实验和理论研究）Superkamiokande报告了NU_E和NU_ <ZETA>产生的电子和MUON的顶角分布的结果，并根据飞行距离显示了MUON的减少。这表明NU_ <mu> -_ <zeta>振荡是一个很大的发现，是显示tau-neutrino的有限质量。从现在开始，旨在通过进一步的数据来发现NU_ <epsilon> nu_ <mu_ <mu_ <mu_ <mu_ <mu_ <mu_ <mu>振动。在每年在Miyyako，Hachimantai和O-Funato举行的项目术语研究会议的三年中，都会举行数十名研究人员，以报告结果并进行讨论和研究促进研究。较少的