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QCD sum rule analysis of the coupling constants g_{ρηγ} and g_{ωηγ}

C. Aydin·A. H. Yilmaz
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Abstract

The coupling constants g$_{ρηγ}$ and g$_{ωηγ}$ are calculated using QCD sum rules method by studying the three point ${ρηγ}$ and ${ωηγ}$ correlation functions. A comparison of the results with the values of the coupling constants that are deduced from the experimentally measured decay widths of $ρ\to ηγ$ and $ω\to ηγ$ decays is performed.

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C. Aydin, A. H. Yilmaz. 2003-03-28. QCD sum rule analysis of the coupling constants g_{ρηγ} and g_{ωηγ}. https://arxiv.org/abs/hep-ph/0303244

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