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Coupling constants g$_{a_0ωγ}$ and g$_{a_0ργ}$ as derived from QCD sum rules

A. Gokalp·O. Yilmaz
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Abstract

We consider the two point correlation function of scalar current in QCD sum rules approach to estimate the overlap amplitude of $a_0$ meson. We then employ QCD sum rules to calculate the coupling constants g$_{ωa_0γ}$ and g$_{ρa_0γ}$ by studying the three point ${a_0ωγ}$- and ${a_0ργ}$-correlation functions.

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A. Gokalp, O. Yilmaz. 2001-07-05. Coupling constants g$_{a_0ωγ}$ and g$_{a_0ργ}$ as derived from QCD sum rules. https://doi.org/10.1007/s100520100801

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