Title: Search for Charged Lepton Flavor Violation with Muons at J-PARC and the MuSIC project at Osaka University

Speaker: Yoshitaka Kuno ( Professor, Osaka University)

Host: Dr. WANG Yifang

Time: 16:00, November 21, 2011

Place: Room C305, IHEP Main Building

Abstract:

Charged lepton flavor violation (CLFV) with muons has attracted much attention from theorists and experimentalists in particle physics. Its physics motivation and experimental prospects are discussed. In particular,the J-PARC E21 experiment (called COMET) to search for a CLFV process of muon to electron conversion at a sensitivity of better than 10^{-16} is presented. It would be about 10,000 improvements over the previous. The COMET experiment is stage-1 approved at J-PARC. Future prospect to search for the same process at a sensitivity of better than 10^{-18} (called "PRISM/PRIME") based on a muon storage ring is also mentioned. Among many R&D studies on COMET and PRISM/PRIME, the MuSIC project at Osaka University which has achieved a high muon yield of 10^{8} muons/sec even with 400 W proton beam power with adopting the idea of the COMET front-end. The muon yield is almost the same as that at PSI which has a MW proton beam power. In addition, some R&D program done at Osaka University on a muon storage ring based on FFAG is presented, with mentioning a possibility of a future high intensity neutrino source.

About the speaker:

Prof. Yoshitaka Kuno graduated from the University of Tokyo in 1984. Then, he became a research associate at the University of Tokyo in 1984. In 1985 he moved to TRIUMF, Canada, as a research associate, and in 1988 became a research scientist (a tenure position) at TRIUMF. In 1992, he became an associate professor at the National Laboratory for High Energy Physics (KEK) in Japan, which was renamed to the High Energy Accelerator Research Organization (KEK) later. In 2000, he became a full professor at Osaka University.