University of Tehran Journal of Sciences, Islamic Republic of Iran 1016-1104 3 2 1992 12 01 NONDYNAMICAL ANALYSIS OF SPIN AMPLITUDES IN PION-PROTON ELASTIC SCATTERING IN OPTIMAL FORMALISM AT 6.0 GeV/C - 31523 EN Journal Article Optimal conditions are used in nondynamical formalism to diagonalize the pionproton reaction matrix as much as possible. Invariance laws are imposed to simplify the relationship between observables and bilinear combination of amplitudes. Transverse amplitudes are determined by using measured polarization parameter in xfp elastic scattering at 6.0 GeVIC https://jsciences.ut.ac.ir/article_31523_0eedded56dcdc9feaf8eb23f226f2550.pdf