Muon linac development to open new era of particle physics

2017 Fiscal Year Final Research Report

• Project/Area Number: 15H03666
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Particle/Nuclear/Cosmic ray/Astro physics
• Research Institution: High Energy Accelerator Research Organization
• Principal Investigator: Otani Masashi 大学共同利用機関法人高エネルギー加速器研究機構, 加速器研究施設, 助教 (90636416)
• Co-Investigator(Kenkyū-buntansha): 岩下 芳久 京都大学, 化学研究所, 准教授 (00144387) ; 近藤 恭弘 国立研究開発法人日本原子力研究開発機構, 原子力科学研究部門 J－PARCセンター, 副主任研究員 (40354740)
• Research Collaborator: KITAMURA Ryo 東京大学, 理学研究科
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 素粒子 / ミューオン / 線型加速器 / 異常磁気能率 / プロファイル / IH / RFQ / J-PARC

Outline of Final Research Achievements

A difference of more than three standard deviations exists between the Standard Model prediction and the measured value in muon anomalous magnetic moment (g-2). Because there has been no measurement for a decade of more, we are developing muon linear accelerator to realize new measurement with new scheme. The muon acceleration, however, had not been realized.
We completed following three developments: (1) Complete of the muon linac design to accelerate muon from 25 meV to 212 MeV: (2) Development of the muon beam profile monitor which is sensitive to low energy and single muon: (3) Demonstration of the muon linear acceleration, which is the first time in the world.

Free Research Field

加速器科学