The reactions ${}_{}{}^{50}{}_{}{}^{}\mathrm{Cr}$(p,p’γ${)}^{50}$Cr and ${}_{}{}^{50}{}_{}{}^{}\mathrm{Cr}$(p,γ${)}^{51}$Mn have been used to investigate resonances in ${}_{}{}^{51}{}_{}{}^{}\mathrm{Mn}$ in the range 2.5<$E_{\mathrm{p}<3.1\mathrm{}}$ MeV (7.7<$E_x$<8.3 MeV). Eighty resonances, some of which are unresolved doublets, were found. Gamma-ray spectra were measured for thirty resonances which populated bound levels in ${}_{}{}^{51}{}_{}{}^{}\mathrm{Mn}$ up to an excitation energy of 5.174 MeV. Angular distributions were measured in the (p,p’γ) and (p,γ) channels for forty-eight resonances. These measurements and capture spectra allow spin assignments to be made for about sixty resonances. A ${(9/2\mathrm{}}^{+}$ core excited state has been found at $E_{\mathrm{p}=2.798\mathrm{}}$ (8.012 MeV) and its decay measured to high spin bound levels including two previously unreported levels at 4.463 and 4.741 MeV.

• Received 22 February 1988

DOI:https://doi.org/10.1103/PhysRevC.38.633