Angular Distribution of Protons Inelastically Scattered from Si²⁸ and Mg²⁴

The angular distributions and the excitation curves of protons inelastically scattered from Si 28 ( Q =-1.78 MeV) and Mg 24 ( Q =1.37 MeV) have been measured in the energy range E p =4.8 to 5.7 MeV. A broad resonance was observed in each excitation functions. The angular distributions in Mg 24 show an asymmetry about the centre-of-mass scattering angle θ=90° and a strong dependence with the energy of incident protons, while in Si 28 the angular distributions are rather symmetric than in Mg 24 .