Abstract

The background resonance $\ensuremath{\Delta}(1230)$, ${N}^{*}(1520)$, ${N}^{*}(1470)$, and ${N}^{*}(1535)$ pion and axial-vector amplitudes are first calculated in the soft-pion and on-shell configurations, respectively. Then a comparison is made with the usual soft-pion theorems and on-shell low-energy expansions of current algebra as worked out in the previous paper. The agreement is good, and we also deduce a nucleon dipole form-factor axial-vector mass of ${m}_{A}\ensuremath{\approx}1.23$ GeV. Finally, an approximate value for the nonstrange current quark mass of $\stackrel{^}{m}=0.64\ifmmode\pm\else\textpm\fi{}1.11 \ensuremath{\mu}$ is extracted from the data.

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