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arXiv · hep-ph/9310344

Perturbative QCD Forbidden Charmonium Decays and Gluonia

M. Anselmino·M. Genovese·D. E. Kharzeev
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Abstract

We address the problem of observed charmonium decays which should be forbidden in perturbative QCD. We examine the model in which these decays proceed through a gluonic component of the $J/Ψ$ and the $η_c$, arising from a mixing of $(c\bar c)$ and glueball states. We give some bounds on the values of the mixing angles and propose the study of the $p \bar{p} \to ϕϕ$ reaction, at $\sqrt{s} \simeq 3$ GeV, as an independent test of the model.

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M. Anselmino, M. Genovese, D. E. Kharzeev. 1993-10-25. Perturbative QCD Forbidden Charmonium Decays and Gluonia. https://doi.org/10.1103/physrevd.50.595

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