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

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

2003-03-28

arxiv.org/abs/hep-ph/0303244v1

Acta Phys.Polon. B34 (2003) 4145-4150

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 LateX pages, 5 ps figures

Scientific paper

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

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