Meson-Nucleon Vertex Corrections in the Cutoff Field Theory and Tensor Coupling
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چکیده
منابع مشابه
Meson-nucleon Vertex Corrections to the Vacuum Polarization in the Cutoff Field Theory and Tensor Coupling
At zero-density, meson-nucleon vertex corrections to vacuum polarization are studied in the σ-ω model with the cutoff. It is shown that the properties of the vertex corrections to vacuum polarization are somewhat different from those described by the ordinary renormalization procedures when the cutoff is small ( < 5GeV). The low-energy effective Lagrangian is constructed in the framework of the...
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15 صفحه اولScalar form factor of the nucleon and nucleon–scalar meson coupling constant in QCD
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 σ and a0 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. PACS number(...
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ژورنال
عنوان ژورنال: Progress of Theoretical Physics
سال: 1998
ISSN: 0033-068X,1347-4081
DOI: 10.1143/ptp.99.395