Spectroscopy of the5−,6−, and7−states inZn68via the (d,p) reaction

The structure of $5^{\mathrm{-}}$, $6^{\mathrm{-}}$, and $7^{\mathrm{-}}$ yrast states in ${}_{}{}^{68}{}_{}{}^{}\mathrm{Zn}$ has been studied through the reaction ${}_{}{}^{67}{}_{}{}^{}\mathrm{Zn}$(d,p${)}^{68}$Zn at $E_{\mathrm{d}}$=6 MeV. The spectroscopic factors in the (d,p) reaction strongly suggest that these negative-parity states are not rotational states, but spherical two-quasiparticle states with ν(1$f_{5/2}$1$g_{9/2}$ ${)}^{J=5\mathrm{}}$,6, 7 configurations. The possible low-spin members with ν(1$f_{5/2}$1$g_{9/2}$ ${)}^{J=2\mathrm{}}$,3, 4 configurations have been observed in the present reaction. Spectroscopic factors and l values for 36 levels have also been extracted by angular distribution measurements.