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arxiv: hep-ph/0312276 · v1 · submitted 2003-12-19 · ✦ hep-ph

The a₀K^+K^--vertex in light cone QCD sum rules

classification ✦ hep-ph
keywords coneconstantcouplinglightrulesvertexanalysisdeterminations
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We investigate the $a_0K^+K^-$-vertex in the framework of light cone QCD sum rules. We estimate the coupling constant g$_{a_0K^+K^-}$ which is an essential ingredient in the analysis of physical processes involving $a_0(980)$ meson. Our result is somewhat larger than the previous determinations of this coupling constant.

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