Abstract
When alpha particles are inelastically scattered from an even nucleus, all particles in the interaction except the excited nucleus are spinless, with the results that the angular momentum relationships of the interaction are greatly simplified and that the polarization of the excited nucleus and the angular distribution of the decay radiation from this nucleus are related in a straight forward manner. For this situation, the functional dependence of the angular correlation between the decay radiation and the scattered alpha particle is calculated in terms of parameters describing the polarization of the excited nucleus, assuming either gamma-ray or alpha-particle decay of this nucleus. The angular dependence of the gamma-ray circular polarization is also calculated and related to the nuclear polarization. Experiments are outlined for measuring nuclear polarization with particle-gamma or particle-particle correlation studies, and the kinematical problems inherent in the latter are discussed.
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