Abstract
We present a new measurement of -violation parameters in decay based on a sample of pairs collected at the resonance with the Belle detector at the KEKB energy-asymmetric collider. One of the mesons is fully reconstructed in the decay. The flavor of the accompanying meson is identified from its decay products. -violation parameters are obtained from the asymmetry in the distribution of the proper time intervals between the two decays. We obtain and , for the invariant mass covering the full range up to . We also measure the -violation parameters for the case and obtain for fixed at 0.
- Received 3 March 2005
DOI:https://doi.org/10.1103/PhysRevLett.94.231601
©2005 American Physical Society