Inelastic excitation and spin flip in heavy ion reactions

Coupled channel calculations were carried out for the inelastic scattering of C13 on Mg24 using form factors generated in a single folding model. We studied the population probability P1 for Mg24 in the 1.37 MeV 2+ level with |m|=1 and C13 in its ground state. Using spin-independent potentials the excitation of various states in C13 gave rise to a maximum P1(6°) of 0.2%. This increased to 0.3% when spin-dependence was allowed for in an approximate manner. At 10°the calculations fell significantly short of the experimental data. Large polarizations were found when excited states of C13 were populated; these effects are discussed. NUCLEAR REACTIONS C13+Mg24 inelastic scattering, E=35 MeV; coupled channel study of |m|=1 population probability for the Mg24 1.37 MeV 2+ level and polarization phenomena.