Byeong Rok Ko
We have searched for CP violation of charmed mesons in the decays D --> K0_S P, where D denotes D0, D^+ and D_s^+, and P denotes the pseudo-scalar mesons \pi^+, K^+, \pi0, eta and eta^'. No evidence of CP violation in these decays is observed. We have measured the CP asymmetry difference between the Cabibbo suppressed decay D^+ --> phi pi^+ and the Cabibbo favored D_s^+ --> phi pi^+ decays. The measured asymmetry is corrected for the residual asymmetry due to detector effects, and the contributions of both CP and forward-backward asymmetries are determined. We also present a measurement of D0-anti-D0 mixing parameters in three-body D0 decays using a time-dependent Dalitz plot analysis. These results are obtained on a large data sample collected at and near the Upsilon(4S) resonance with the Belle detector operating at the KEKB asymmetric-energy e^+ e^- collider.
Collaboration BELLE (KEK)