An overview is given on the first observation of the B+→Χc0K+. The statistical significance of the signal is 6σ when the Χc0→π+π- and Χc0→K*Kπ modes are combined. The measured branching fraction is Β(Β→Χc0K+) = (6.0-1.8+2.1 ± 1.1) × 10-4 which is comparable to those for the B+ → J/ψK+ and B+ → Χc1K+ decays. This provides evidence for a significant nonfactorizable contribution in B to charmonium decay processes.
|Journal||Physical review letters|
|Publication status||Published - 2002 Jan 21|
All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)