Migdal'S Theory of Nuclear Structure and Partial Muon Capture Rates inO16

The partial muon-capture rates in ${\mathrm{O}}^{16}$ leading to low-lying states in ${\mathrm{N}}^{16}$ are calculated in Migdal's theory of nuclear structure, with results that agree well with the available experiments for suitable values of $C_P=\frac{m_{\mu }{F}_P}{F_A}$. It is thus argued that the neglect of $G$-parity irregular terms was not the cause of previous apparent disagreement. The capture rates are in turn employed to examine the effect of the velocity-dependent terms in Migdal's effective amplitude.