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

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

2006-12-12

arxiv.org/abs/hep-ph/0612144v2

Phys.Rev.D75:045006,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

20 pages, 12 figures, LaTeX formatted

Scientific paper

10.1103/PhysRevD.75.045006

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.

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