A search for a T-violating transverse muon polarization (PT ) in K+ ? p0µ+? decay was carried out in the experiment E246 at the KEK-PS. The Standard model (SM) predicts vanishing value of the polarization (< 10-7), so an observation of non-zero PT at the current experimental sensitivity level would be a definite signature of new physics beyond SM. The preliminary result of the analysis of the 1996-1998 data is presented here: PT = (-3.3±3.7(stat)±0.9(syst))×10-3, which corresponds to the T-violation parameter Im(?) = (-0.9 ± 1.2(stat) ± 0.3(syst)) × 10-2. There is no evidence for T-violation in Kµ3 at the current level of sensitivity.
|Original language||English (US)|
|Journal||Proceedings of Science|
|State||Published - 2001|
|Event||2001 International Europhysics Conference on High Energy Physics, HEP 2001 - Budapest, Hungary|
Duration: Jul 12 2001 → Jul 18 2001
All Science Journal Classification (ASJC) codes