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arXiv · 2105.06755

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

Ulrich Sauerwein·Matthias F. M. Lutz·Rob G. E. Timmermans
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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.

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Ulrich Sauerwein, Matthias F. M. Lutz, Rob G. E. Timmermans. 2021-05-14. Axial-vector form factors of the baryon octet and chiral symmetry. https://doi.org/10.1103/physrevd.105.054005

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