STRINGENT ISOSPIN CONSTRAINTS ON EXPERIMENTAL OBSERVABLES OF (0 1/2 - 0'0'1'/2) REACTIONS

摘要

The results are presented in a general form, and are sufficient to obtain any constraints (equalities or bounds) by specializing the unit vectors and using tables I, II, III from sect. 3. These results improve in the most gene¬ral form the usual triangle inequalities and are useful to obtain certain tests of the isospin invariance and to determine the breaking effects when the experimental data, on differential cross sections and on the spin density matrices of the single meson production processes, are available.