Large-N_c operator analysis of 2-body meson-baryon counterterms in the chiral Lagrangian

Abstract

The chiral SU(3) Lagrangian with the baryon octet and decuplet fields is considered. The Q^2 counterterms involving the decuplet fields are constructed. We derive the correlation of the chiral parameters implied by the 1/N_c expansion at leading order in QCD.

arXiv comment20 pages, 3 figures

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• The relativistic chiral Lagrangian for decuplet and octet baryons at next-to-leading order
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• On the consistency of recent QCD lattice data of the baryon ground-state masses
• Axial-vector form factors of the baryon octet and chiral symmetry
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