a(0)K(+)K(-) vertex in light cone QCD sum rules

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Gokalp A., Yilmaz O.

PHYSICAL REVIEW D, cilt.69, sa.7, 2004 (SCI İndekslerine Giren Dergi) identifier


We investigate the a(0)K(+)K(-) vertex in the framework of light cone QCD sum rules. We estimate the coupling constant g(a0)K(+)K(-) which is an essential ingredient in the analysis of physical processes involving the a(0)(980) meson. Our result is somewhat larger than the previous determinations of this coupling constant.