The neutron states in ${}_{}{}^{195}{}_{}{}^{}\mathrm{Pt}$ have been studied using the ${}_{}{}^{194}{}_{}{}^{}\mathrm{Pt}(d,p){}_{}{}^{195}{}_{}{}^{}\mathrm{Pt}$ and ${}_{}{}^{196}{}_{}{}^{}\mathrm{Pt}(d,t){}_{}{}^{195}{}_{}{}^{}\mathrm{Pt}$ reactions and 12 and 13.5 MeV deuterons. Transfer $l$ values have been determined from angular distributions, and spectroscopic factors obtained by comparison with distorted wave Born approximation calculations. Many lower energy states are well explained by the Nilsson model assuming an oblate nuclear shape. These include the ${1/2}^{-}$[530], ${3/2}^{-}$[532], ${5/2}^{-}$[532], and decoupled ${1/2}^{+}$[600] bands, and more tentatively the ${3/2}^{-}$[541] and ${9/2}^{+}$[615] bands. Other low-lying states are well described by the Faessler-Greiner model using parameters consistent with the ${}_{}{}^{194}{}_{}{}^{}\mathrm{Pt}$ data. The Coriolis force is important in reproducing the large spectroscopic factors experimentally observed. The success of the Faessler-Greiner and Davydov models in explaining the experimental ${}_{}{}^{195}{}_{}{}^{}\mathrm{Pt}$ spectra is also compared.

NUCLEAR REACTIONS, NUCLEAR STRUCTURE ${}_{}{}^{194}{}_{}{}^{}\mathrm{Pt}\mathrm{}(d,p)\mathrm{}$, $E_d=12\mathrm{}$ MeV. ${}_{}{}^{196}{}_{}{}^{}\mathrm{Pt}\mathrm{}(d,t)\mathrm{}$, $E_d=13.5\mathrm{}$ MeV. Measured $\sigma (E_p,\theta )$, $\sigma (E_t,\theta )$, ${}_{}{}^{195}{}_{}{}^{}\mathrm{Pt}$ levels; deduced $l$, $S$; calculated $J$, $\pi$, $S$, rotation-vibration model. DWBA analysis, enriched targets.

• Received 26 January 1976

DOI:https://doi.org/10.1103/PhysRevC.14.531