Study ofCo58with the (He3p) and (He3,pγ) Reactions onFe56

Thirty levels in ${}_{}{}^{58}{}_{}{}^{}\mathrm{Co}$ were populated by use of the ${}_{}{}^{56}{}_{}{}^{}\mathrm{Fe}({}_{}{}^3{}_{}{}^{}\mathrm{He}, p)$ reaction. The angular distributions of protons leading to these states were obtained with a split-pole magnetic spectrograph. In some cases a study of the angular distribution permitted the determination of the orbital angular momentum transferred by the $n-p$ pair. Coincidences between protons and $\gamma$ rays from the ${}_{}{}^{56}{}_{}{}^{}\mathrm{Fe}({}_{}{}^3{}_{}{}^{}\mathrm{He}, p\gamma )$ reaction were also studied to obtain the $\gamma$ decay of some levels in ${}_{}{}^{58}{}_{}{}^{}\mathrm{Co}$. The results of the present investigation are combined with those of previous work on ${}_{}{}^{58}{}_{}{}^{}\mathrm{Co}$ to assign spins and parities for some of the levels. The isobaric analog to the ground state of ${}_{}{}^{58}{}_{}{}^{}\mathrm{Fe}$ and the corresponding antianalog state are briefly discussed.