International Study of Ultra High-Energy Particle Beams

超高能粒子束的国际研究

• 批准号: 11691134
• 负责人: KUNO Yoshitaka
• 金额: $ 5.38万
• 依托单位: Osaka University (2000)The High Energy Accelerator Research Organization (1999)
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A).
• 财政年份: 1999
• 资助国家: 日本
• 起止时间: 1999 至 2000
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-11691134/
• 关键词: muon rare decay; neutrino oscillation; neutrino factory; PRISM; muons; secondary beams; ニュートリノ; 二次粒子ビーム; 国際共同研究

The goal of our research is to examine the possibility of international collaboration on the construction of a high-intensity secondary beam with high stopping rates, and to hopefully start its preparation at the earliest time. The intensity aimed at such a beam is about 10^<11>-10^<12> particles/second, which is about ten thousand times the current beam available now. In particular, a muon beam is of our major interest. If that kind of a beam with the highest intensity in the world is achieved, significant progress in particle physics with muons (rare muon decays and neutrino oscillation), nuclear physics and many other applications can be expected. In May, 2000, the workshop on "Neutrino factories based on muon storage rings" were held in Monterey, US.In the workshop, we have given many contributions and important presentations, and they were accepted with high appreciation from the audiences. Owing to such success, we are accepted to hold the next workshop in the same series in Japan in May, 2001. Furthermore, in October, 2000, another important workshop on "New Initiatives of Lepton Flavor Violation and Neutrino Oscillation" was held in University of Hawaii, where many foreign researches gathered to discuss various issues on high-intensity muon source. In particular, the "PRISM" project which we Japanese group are pushing has received high acknowledgment on its uniqueness and significance of the project.

我们研究的目标是研究国际合作构建高强度高停止率次级光束的可能性，并希望尽早开始其准备工作。这样的光束的强度大约是10^<11>-10 ^<12>粒子/秒，这大约是目前可用的光束的一万倍。特别是，μ子束是我们的主要兴趣。如果实现世界上强度最高的光束，那么可以预期在粒子物理学与μ子（罕见的μ子衰变和中微子振荡），核物理学和许多其他应用方面取得重大进展。2000年5月，“基于μ子储存环的中微子工厂”研讨会在美国蒙特雷举行，我们在会上作了许多贡献和重要的报告，受到了与会者的高度评价。由于这一成功，我们同意于2001年5月在日本举办同一系列的下一次讲习班。2000年10月，在夏威夷大学又召开了一次重要的“轻子味破坏和中微子振荡的新倡议”研讨会。特别是我们日本集团正在推动的“PRISM”项目，其独特性和重要性得到了高度认可。