Observation of χcJ radiative decays to light vector mesons

Journal article

Using a total of 2.74×107 decays of the ψ(2S) collected with the CLEO-c detector, we present a study of χcJ→γV, where V=ρ0, ω, □. The transitions χc1→γρ0 and χc1→γω are observed with B(χc1→γρ0)=(2. 43±0.19±0.22)×10-4 and B(χc1→γω)=(8. 3±1.5±1.2)×10-5. In the χc1→γρ0 transition, the final state meson is dominantly longitudinally polarized. Upper limits on the branching fractions of other χcJ states to light vector mesons are presented. © 2008 The American Physical Society.

Authors: Bennett, J; Mitchell, R; Shepherd, MR; Besson, D; Pedlar, T

• Journal: Physical Review Letters
• Volume: 101
• Issue: 15
• Publication date: 2008-10-08
• DOI: 10.1103/PhysRevLett.101.151801
• EISSN: 1079-7114
• ISSN: 0031-9007
• Language: English