Isobaric Analogue States in Heavy Nuclei. II. Resonances inGa69

Abstract

Resonances in proton elastic scattering and ($p, n$) reactions on targets of ${\mathrm{Zn}}^{68}$ are interpreted as isobaric analogues of the excited states of ${\mathrm{Ga}}^{69}$. Twelve resonances are identified and classified with respect to $l_p$. The resolution of a previously unresolved energy-level doubtlet is demonstrated. The Coulomb displacement energy for the isobaric-analogue system ${\mathrm{Zn}}^{69}$-${\mathrm{Ga}}^{69}$ is found to be 9.60 MeV, in agreement with other work.