Ni60(He3, α)Ni59Reaction at 15 MeV

Measurements have been made of the angular distributions of alpha particles from the ${\mathrm{Ni}}^{60}({\mathrm{He}}^3, \alpha ){\mathrm{Ni}}^{59}$ reaction leading to the ground state and the 0.34-, 0.47-, 0.89-, 1.32-, 1.97-, 2.70-, 3.15-, 3.74-, and 7.33-MeV excited states of ${\mathrm{Ni}}^{59}$. Distorted-wave Born-approximation analysis of the angular distributions has been carried out and spectroscopic factors extracted. The spectroscopic factors have been compared with the occupation-number predictions of pairing theory. The isobaric analog of the ${\mathrm{Co}}^{59}$ ground state has been observed at an excitation of 7.33 MeV in ${\mathrm{Ni}}^{59}$.