Isospin Dependence of the Nuclear Level Width

Statistical fluctuation analyses of ${}_{}{}^{31}{}_{}{}^{}\mathrm{P}(p,\alpha )$ and ${}_{}{}^{31}{}_{}{}^{}\mathrm{P}(p,p^{\prime })$ excitation functions are used to deduce level widths for the $T_{<}$ and $T_{>}$ isospin states in ${}_{}{}^{32}{}_{}{}^{}\mathrm{S}$ at 17.8 MeV of 38.7±2.7 and 26.2±3.5 keV, respectively. These two widths in ${}_{}{}^{55}{}_{}{}^{}\mathrm{Mn}$ at 17.6 MeV are reported also. Relative level densities of the two isospins are calculated for each nucleus.