Abstract
We present a measurement of the standard model violation parameter (also known as ) based on a data sample collected at the resonance with the Belle detector at the KEKB asymmetric collider. One neutral meson is reconstructed in the , , , , , or -eigenstate decay channel and the flavor of the accompanying meson is identified from its charged particle decay products. From the asymmetry in the distribution of the time interval between the two -meson decay points, we determine .
- Received 9 February 2001
DOI:https://doi.org/10.1103/PhysRevLett.86.2509
©2001 American Physical Society