PION-SCATTERING FROM SPIN 1 2 NUCLEI

Left-right asymmetries for pion elastic scattering and charge exchange from polarized C-13 and N-15 are calculated and compared with the ava ilable data. It is shown for elastic scattering that the quadrupole sp in-flip contribution is dominant in the determination of the asymmetry at forward angles. The distorted wave impulse approximation and optic al model treatments are compared and a qualitative discussion of the u nderlying physics of the sign of the asymmetry in the first diffractio n minimum is presented.