Further search for T-violation in the decay K^+ --> pi^0 mu^+ nu
arXiv:hep-ex/0211049 · doi:10.1016/S0375-9474(03)01095-9
Abstract
A new result for the transverse mu^+ polarization, P_T, in the decay K^+ --> pi^0 mu^+ nu has been obtained in the KEK E246 experiment. Combined with our earlier result, P_T = (-1.12 +- 2.17(stat) +- 0.90(syst))x10^{-3} and Im(ξ) = (-0.28 +- 0.69(stat) +- 0.30(syst))x10^{-2}, which are consistent with no T-violation.
5 pages, 2 figures, to be published in the Proceedings of the PANIC02, Osaka, Sept 30 - Oct 4, 2002