Using the CLEO II data sample, with an integrated luminosity of 1.8 fb-1 at and near the Υ(4S) resonance, we have observed a signal for D0→K+π-, which could be due to either D0D̄0 mixing or doubly Cabibbo suppressed decay, or a combination of the two. We find scrB(D0→K+π-)/scrB(D0→K-π+)=0.0077±0. 0025(stat) ±0.0025(syst).
ASJC Scopus subject areas
- Physics and Astronomy(all)