Detector Development with the ultimate performance to verify supersymmetry via rare muon decays

2015 Fiscal Year Final Research Report

• Project/Area Number: 25247034
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Particle/Nuclear/Cosmic ray/Astro physics
• Research Institution: The University of Tokyo
• Principal Investigator: Iwamoto Toshiyuki 東京大学, 素粒子物理国際研究センター, 助教 (20376700)
• Co-Investigator(Renkei-kenkyūsha): MORI Toshinori 東京大学, 素粒子物理国際研究センター, 教授 (90220011) ; OOTANI Wataru 東京大学, 素粒子物理国際研究センター, 准教授 (30311335) ; SAWADA Ryu 東京大学, 素粒子物理国際研究センター, 特任助教 (00541947) ; UCHIYAMA Yusuke 東京大学, 素粒子物理国際研究センター, 特任助教 (90580241)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: ミューオン / レプトンフレーバー / MEG / PSI / SiPM / MPPC / 超対称性理論

Outline of Final Research Achievements

The MEG experiment, which searches for the lepton flavor violating muon decay, mu -> e gamma, presented the final result with the full data set on March 2016. Our group promotes the MEG II experiment with a goal of one order of magnitude improvement from the MEG experiment. Especially, we are aiming at the dramatical performance improvement of the gamma detector with a new photon sensor and with a high granularity scintillation light readout.

In this research, we completed the development of the new photon sensor, MPPC which can be used in the liquid xenon, and succeeded in making the large amount of the sensors for the MEG II experiment. This will open the possibility that other projects can use this photon sensors for different purposes.

Free Research Field

素粒子実験