Excited-Core Model inAl27and Inelastic Scattering of 14.2-MeV Neutrons

Abstract

Differential cross sections for 14.2-MeV neutron inelastic scattering to the first levels in ${\mathrm{Al}}^{27}$ have been measured at forward angles using a time-of-flight spectrometer. The experimental values agree with the predictions of the excited-core model; mixing between the ground state and the ${\frac{5}{2}}^{+}$ excited state must be allowed for, the square of the mixing parameter being $A^2=0.82\mathrm{}\pm 0.07$.