q2 independence of the FD ratios in matrix elements of the axial-vector currents between baryon octet states

The $\frac{F}{D}$ ratios of the pseudovector and pseudoscalar form factors in the matrix elements of the axial-vector currents between baryon octet states are shown to be almost independent of ${q}^{2}$ over a large range in ${q}^{2}$, at least ${q}^{2}<4$ ${\mathrm{GeV}}^{2}$, timelike. Evidence is presented to indicate that this behavior persists to much higher values of ${q}^{2}$. The smoothness of these ratios is related to the pseudoscalar-meson-baryon coupling $\frac{f}{d}$ ratio, independence of ${q}^{2}$ occurring for ${(\frac{f}{d})}^{2}=\frac{5}{9}$.