Center for Axion and
Precision Physics Research

Research interests:

Finding nonzero EDM (electric dipole moment) in a fundamental particle would signal strong CP violation and consequently it could explain matter and antimatter asymmetry in our universe. Storage ring proton EDM (pEDM) experiment is one of the EDM searches using storage ring aiming sensitivity level of 10-29 e·cm.
In the pEDM experiment, polarized protons are stored in the storage ring and slowly extracted (for 1000 s) and scattered on a carbon target. Through the interaction between polarized protons and unpolarized carbon nuclei, protons experience asymmetrical force due to the spin-orbit interaction with the nucleus electric field. The asymmetry of the proton scattering can be measured by using a pair of detectors.
The detectors are the essential part of the polarimeter system. I’m working on prototype polarimeter detector development. This work includes GEM-based polarimeter detector development, Monte Carlo simulation of polarimeter system, systematic error study etc.