Single-neutron states and the role of the $\nu$g$_{9/2}$ orbital in $^{71}$Zn

The structure of $^{71}$Zn has been studied at ATLAS by means of transfer reactions between heavy ions at beam energies 25$\%$ above the Coulomb barrier. The $\gamma$ rays were detected by GRETINA while scattered charged particles were identified by using CHICO2. In conjunction with data from a Gammasphere stand-alone experiment using a thick target, level schemes associated with the long-lived, 9/2$^+$ isomers in $^{71}$Zn were delineated. The level sequences built on the g$_{9/2}$ neutron orbital all appear to be of single-particle character. The results will be presented and compared with shell-model calculations, using current effective interactions, which reveal a preferential oblate configuration for high-spin yrast states. The present experiment allowed to investigate, for the first time, the potential of transfer reactions between heavy ions using GRETINA and can serve as a benchmark for future experiments.