(p, p′γ) Angular Correlations inTi48

The angular correlations between the protons inelastically scattered from the first excited state of ${\mathrm{Ti}}^{48}$ and the associated de-excitation gamma rays have been measured as absolute second differential cross sections at bombarding energies of 4.63 and 5.25 MeV. These measurements were made both in the scattering plane and at angles of 30, 45, 60, and 90° relative to the scattering plane. Special attention was directed to studies of the symmetry predictions of the compound nucleus and direct interaction processes, and comparison is made with the statistical-theory computations of Sheldon. For a given proton detector angle, the azimuthal symmetries agree in shape though not in magnitude with statistical-theory predictions. However, results for complementary proton-detector angles are incommensurate with the symmetries predicted by statistical theory.