Pion-Nucleus Scattering and the Investigation of Nuclear Spin Dependent Effects.

Pion elastic scattering from aligned targets and pion-gamma angular correlations following inelastic scattering are investigated in order to determine nuclear spin dependent effects with pions as projectiles. A density-matrix formulation is employed to treat the scattering between different target spin states. Two forms of pion optical potentials are used to represent elastic pion-nucleus scattering for incident pion energies between 100 and 200 MeV. A collective model generalization with rotational wave functions is employed for the interaction using the distorted wave Born approximation.