The angular precessions of the lowest ${\mathrm{}(5/2)\mathrm{}}^{+}$ and ${\mathrm{}(7/2)\mathrm{}}^{+}$ states in ${}_{}{}^{197}{}_{}{}^{}\mathrm{Au}$ have been measured employing the transient field method. The ${}_{}{}^{197}{}_{}{}^{}\mathrm{Au}$ nuclei, Coulomb-excited by a 180 MeV ${}_{}{}^{63}{}_{}{}^{}\mathrm{Cu}$ beam, traversed the Gd foil with velocities between 5$v_0$ and 2$v_0$ ($v_0$=c/137). We have obtained the values g${\mathrm{}\left(\right(5/2\mathrm{})\mathrm{}}^{+}$)=0.21(2) and g${\mathrm{}\left(\right(7/2\mathrm{})\mathrm{}}^{+}$)=0.15(2), which are consistent with the predictions of the particle-core weak-coupling model. The field has been calibrated with the Chalk River parametrization, which has been checked using the known g factors of the lowest $2^{+}$ states in ${}_{}{}^{184}{}_{}{}^{}\mathrm{W}$, ${}_{}{}^{186}{}_{}{}^{}\mathrm{W}$, ${}_{}{}^{194}{}_{}{}^{}\mathrm{Pt}$, and ${}_{}{}^{196}{}_{}{}^{}\mathrm{Pt}$ as probes.

• Received 2 December 1985

DOI:https://doi.org/10.1103/PhysRevC.33.1785