Axial-vector form factors of the baryon octet and chiral symmetry

Abstract

We consider the axial-vector form factors of the baryon octet in flavor-SU(3) chiral perturbation theory. The baryon octet and decuplet and the pseudoscalar-meson octet are included as explicit degrees of freedom. We explore the use of on-shell meson and baryon masses in the one-loop contributions to the axial-vector form factors and focus on a consistent treatment in terms of chiral power counting. The convergence properties of such an approach are scrutinized. We discuss the potential for comparison to upcoming QCD lattice data.

arXiv comment57 pages, 4 figures, in the revised manuscript we extended the presentation considering now all relevant counterterms

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Cited by in corpus (6)

• Chiral perturbation theory for heavy hadrons and chiral effective field theory for heavy hadronic molecules
• Coupled-channel dynamics with chiral long-range forces in the open-charm sector of QCD
• Low-energy constants in the chiral Lagrangian with baryon octet and decuplet fields from Lattice QCD data on CLS ensembles
• The electromagnetic Sigma-to-Lambda transition form factors with coupled-channel effects in the space-like region
• The chiral Lagrangian with three flavors and large-Nc sum rules
• The axial-vector form factor of the nucleon in a finite box