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arXiv · hep-ph/9908214

On the $η'$ Gluonic Admixture

Emi Kou
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Abstract

The $η'$ which is an $SU(3)_F$ singlet state can contain a pure gluon component, gluonium. We examine this possibility by analysing all available experimental data. It is pointed out that the $η'$ gluonic component may be as large as 26%. We also show that the amplitude for $J/ψ-> η'γ$ decay obtains a notable contribution from gluonium.

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Emi Kou. 2000-04-26. On the $η'$ Gluonic Admixture. https://doi.org/10.1103/physrevd.63.054027

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