Mass and low-lying energy levels ofCu69

The ($d$, ${}_{}{}^3{}_{}{}^{}\mathrm{He}$) reaction on ${}_{}{}^{64,66,68,70}{}_{}{}^{}\mathrm{Zn}$ was investigated at $E_d=23.3\mathrm{}$ MeV and angular distributions measured for low-lying states. The mass excess of ${}_{}{}^{69}{}_{}{}^{}\mathrm{Cu}$ is found to be -65.75±0.01 MeV, about 190 keV less stable than tabulated mass values. A partial level scheme for ${}_{}{}^{69}{}_{}{}^{}\mathrm{Cu}$ based on the systematics of the ($d$, ${}_{}{}^3{}_{}{}^{}\mathrm{He}$) reaction and the energy levels of the lighter odd mass Cu isotopes is suggested. Spectroscopic factors for proton pickup from the zinc isotopes are also presented.