Scalar form factor of the nucleon and nucleon-scalar meson coupling constant in QCD

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Aliev T. , Savci M.

PHYSICAL REVIEW D, cilt.75, 2007 (SCI İndekslerine Giren Dergi) identifier identifier


Scalar form factor of the nucleon is calculated in the framework of light-cone QCD sum rules, using the most general form of the baryon current. Using the result on scalar form factor of the nucleon, the nucleon-scalar sigma and a(0) meson coupling constants are estimated. Our results on these couplings are in good agreement with the prediction of the external-field QCD sum rules method.