Abstract
The production of J/ψ in B meson decays has been measured on the Γ(4 S) resonance using the Crystal Ball detector at the e+e- storage ring DORIS II. The J/ψ is identified by its e+e- decay mode. We obtain a branching ratio of BR(B→J/ψX)=(1.12±0.33±0.25)% in good agreement with theoretical predictions based on color suppression. The J/ψ momentum distribution is observed to be peaked at high values. This implies a substantial contribution from direct B meson decays to the J/ψ. In addition upper limits on J/ψ production in Γ(1 S) and Γ(2 S) decays and in continuum processes are determined.
Original language | English (US) |
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Pages (from-to) | 555-562 |
Number of pages | 8 |
Journal | Zeitschrift für Physik C Particles and Fields |
Volume | 46 |
Issue number | 4 |
DOIs | |
State | Published - Dec 1990 |
Externally published | Yes |
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)