Co58: Structure of an odd-odd nucleus in the pf shell

High-spin states in the odd-odd $^{58}\mathrm{Co}$ nucleus have been studied with the fusion-evaporation reaction $^{51}\mathrm{V}$ ($^{10}\mathrm{B}$,$p2n$) using the \ensuremath{\gamma}-spectrometer Saci-Perere. Thirty-six new excited states up to spin ${11}^{+}$ and an excitation energy of 8.0 MeV have been observed, which are connected by 46 \ensuremath{\gamma}-ray transitions. Transition probabilities for 14 excited states were measured through the Doppler-shift attenuation method. The results are compared with shell-model calculations using the GXPF1 effective interaction, developed for use in the pf shell. These results were interpreted by considering particle-hole excitations with respect to the doubly magic $N=Z=28$ core.