T-violation experiment using polarized 8Li at KEK-TRIAC and TRIUMF-ISAC

If electrons emitted from polarized nuclei have non-zero transverse polarization, time reversal symmetry is broken. In order to search the electron transverse polarization, we have performed an experiment after developing an electron-transverse-polarimeter using a multi-wire-drift-chamber (MWDC). The electron transverse polarization can be determined by measuring Mott scattering angular distributions from a thin metal foil. A physics data taking run was performed in September 2008 at KEK-TRIAC. We have successfully reconstructed the Mott scattered electron tracks. From later year 2009, a new experiment is going to be performed at TRIUMF-ISAC. Since the beam intensity and polarization are a greatly increased, a significant improvement can be expected. In this presentation, the development status and the expected results of the TRIUMF experiment will be reported.