ReactionMn55(p, n)Fe55fromEp=1.35 to 5.42MeV

The total ($p, n$) reaction cross section for ${}_{}{}^{55}{}_{}{}^{}\mathrm{Mn}$ has been measured as a function of proton energy in the energy range 1.35 to 5.42 MeV with fine resolution (∼5 keV). Several strong isobaric analog resonances have been located in the excitation function. The excitation function, averaged over a 200 keV energy interval has been compared with the optical model, Hauser-Feshbach, and Hauser-Feshbach-Moldauer calculations. The strong isobaric analog resonance at $E_p\sim 1.54$ MeV has been shape analyzed to extract the proton width ${\Gamma }_p$, the spreading width $W$, the spectroscopic factor, and the reduced normalization.