\psi(2S) Decays into $\J$ plus Two Photons
High Energy Physics - Experiment
2012-08-27 v1
Authors:
BES collaboration
Abstract
Using γγJ/ψ,J/ψ\rae+e− and μ+μ− events from a sample of 14.0×106 \psip decays collected with the BESII detector, the branching fractions for \psip\raπ0\J, η\J, and ψ(2S)\arγχc1,γχc2\arγγ\jpsi are measured to be B(\psip\raπ0\J)=(1.43±0.14±0.13)×10−3, B(\psip\raη\J)=(2.98±0.09±0.23), B(ψ(2S)\arγχc1\arγγ\jpsi)=(2.81±0.05±0.23), and B(ψ(2S)\arγχc2\arγγ\jpsi)=(1.62±0.04±0.12).
Cite
@article{arxiv.hep-ex/0403023,
title = {\psi(2S) Decays into $\J$ plus Two Photons},
author = {BES collaboration},
journal= {arXiv preprint arXiv:hep-ex/0403023},
year = {2012}
}
Comments
7 pages, 6 figures. submitted to Phys. Rev. D
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