[Triumf-seminars] TRIUMF Particle Phys/SciTec Seminar today at 12:15

[TRIUMF Seminars]

Date/Time: Mon 2015-05-11 at 12:15

Location:  Auditorium          

Speaker:   Glen Marshall (TRIUMF)

Title:     Muon g-2/EDM at J-PARC

Abstract: High precision measurements and Standard Model calculations of the muon anomalous magnetic moment ("muon g-2") disagree at the level of ~3.5 standard deviations, motivating a Fermilab re-measurement of the existing Brookhaven result. A small Canadian group is collaborating on a separate proposal to measure g-2 independently at J-PARC in Japan in a much smaller but extremely high precision muon storage ring. Combining state-of-the-art high power pulsed muon beams, storage magnet technology, precision muon tracking detectors, and high-power pulsed laser systems, it relies on a TRIUMF-developed method to produce thermal muonium for laser ionization in an "ultra-cold" muon beam source. Our J-PARC collaboration aims to compete with the Fermilab project to improve the experimental precision of g-2, and additionally to reduce the upper limit on the muon's electric dipole moment.

This talk will review the motivation for the measurements, explain the J-PARC technique, compare it to the Brookhaven and Fermilab methods, and describe the TRIUMF experiment that enables the required ultra-cold muon beam to be produced at J-PARC.




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