Abstract
We present measurements of time-dependent -violating asymmetries in neutral decays to several eigenstates. The measurement uses a data sample of decays collected by the BABAR detector at the PEP-II asymmetric Factory at SLAC. In this sample, we find events in which one neutral meson is fully reconstructed in a eigenstate containing charmonium and the flavor of the other neutral meson is determined from its decay products. The amplitude of the -violating asymmetry, which in the standard model is proportional to , is derived from the decay time distributions in such events. The result is .
- Received 12 February 2001
DOI:https://doi.org/10.1103/PhysRevLett.86.2515
©2001 American Physical Society