Research Project
Grant-in-Aid for Scientific Research (A)
A muon to electron conversion (mu-e conversion) is heavily suppressed in the Standard Model of particle physics (SM), but in many new frameworks with physics beyond the SM the existence of the process with sizable branching ratio is expected. The experimental research for the mu-e conversion is very important and urgent. We aimed to search for the mu-e conversion, and developed a novel experimental technique using a high-purity high-intensity pulsed proton beam from J-PARC RCS. In order to realize a physics measurement as early as possible, the improvements of a high-burst tolerance radiation detector and the development of a new beam-profile monitor specially designed for the pulsed beam were performed. We have prepared for the physics data taking once the beam line becomes available.
我々は、mu-e転換過程探索実験の重要性と、物理測定の早期実現やそれに続く段階的な物理感度の向上を強く訴え、実験の実現に向けて具体的に行動してきた。近年国内外のミュー粒子基礎実験分野が大きく活性化されており、我々の活動が与えた影響は非常に大きいと考える。本研究を通して、博士号2件、修士号5件を輩出した。博士号取得者はmu-e転換過程探索実験の分野で国際的に活躍しており、ミュー粒子研究分野の国際的な発展と若手人材の育成に大きく寄与した。
All 2021 2020 2019 2018 2017 Other
All Int'l Joint Research (3 results) Journal Article (10 results) (of which Int'l Joint Research: 10 results, Peer Reviewed: 9 results, Open Access: 9 results) Presentation (47 results) (of which Int'l Joint Research: 10 results, Invited: 10 results) Remarks (1 results)
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume: 999 Pages: 165228-165228
10.1016/j.nima.2021.165228
Physical Review D
Volume: 103 Issue: 5 Pages: 052006-052006
10.1103/physrevd.103.052006
Volume: 102 Issue: 1 Pages: 012001-012001
10.1103/physrevd.102.012001
Volume: 101 Issue: 5 Pages: 052014-052014
10.1103/physrevd.101.052014
Physics Letters B
Volume: 798 Pages: 1-5
10.1016/j.physletb.2019.134980
Progress of Theoretical and Experimental Physics
Volume: 2018 Issue: 11
10.1093/ptep/pty116
A proceedings of CIPANP2018
Volume: CIPANP2018
Proc. of Science, The 3rd International Symposium on “Quest for the Origin of Particles and the Universe" (KMI2017)
Volume: 294 Pages: 034-034
10.22323/1.294.0034
Hyperfine Interact Proceedings
Volume: 238 no. 1, 3 Issue: 1 Pages: 3-3
10.1007/s10751-016-1367-5
Volume: 238 no 1, 3 Issue: 1 Pages: 1-1
10.1007/s10751-016-1375-5
http://deeme.phys.sci.osaka-u.ac.jp