Branching fractions for transitions of ψ(2S) to J/ψ

Journal article

We report determination of branching fractions for the decays ψ(2S)→h+J/ψ, where h=any, π+π-, π0π0, η, π0, and γγ through χc0,1,2. These measurements use 27M ψ(2S) decays produced in e+e- collision data collected with the CLEO detector. The resulting branching fractions and ratios thereof improve upon previously achieved precision in all cases, and in combination with other measurements permit determination of B(χcJ→γJ/ψ) and B(ψ(2S)→light hadrons). © 2008 The American Physical Society.

Authors: Mendez, H; Ge, J; Miller, D; Shipsey, I; Xin, B

• Journal: Physical Review D
• Volume: 78
• Issue: 1
• Publication date: 2008-07-11
• DOI: 10.1103/PhysRevD.78.011102
• EISSN: 1550-2368
• ISSN: 1550-7998
• Language: English