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arXiv · hep-ph/0505158

Revisiting the OZI-forbidden Radiative Decays of Orthoquarkonia

Gang Li·Tong Li·Xue-Qian Li·Wen-Gan Ma·Shu-Min Zhao
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Abstract

It is interesting to investigate the OZI-forbidden radiative orthoquarkonium decays $J/ψ\to γπ^0, γη$ and $γη'$ in perturbative QCD. In this work without the approximations adopted in literature we carry out a full one-loop calculation which involves integrations of 4-point and 5-point loop functions. Our numerical results are in agreement with the present data. We also briefly discuss the decays of $J/ψ\to γ+ρ^0$, as well as $Υ\to π^0γ, ηγ, η'γ$.

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Gang Li, Tong Li, Xue-Qian Li, Wen-Gan Ma, Shu-Min Zhao. 2005-09-18. Revisiting the OZI-forbidden Radiative Decays of Orthoquarkonia. https://doi.org/10.1016/j.nuclphysb.2005.08.013

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