Using 58 million J/ψ and 14 million ψ(2S) decays obtained by the BES II experiment, the branching fraction of J/ψ→π+π-π0 is determined. The result is (2.10±0.12)×10-2, which is significantly higher than previous measurements.
Physical Review D
- Pub Date:
- July 2004
- Decays of J/psi Upsilon and other quarkonia;
- Hadron production in e<sup>-</sup>e<sup>+</sup> interactions;
- High Energy Physics - Experiment
- 9 pages, 8 figures, RevTex4