Symmetries restrict isospin and SU(3) dependence of single-particle and multiparticle inclusive and semi-inclusive cross sections. Isospin relations test treatments of experimental data, including deuteron corrections, separations, and resonance-background separations. They also test the isospin structure of initial states in photoproduction, electroproduction, and neutrino-production processes; and they can reveal Coulomb effects in or annihilation. Applied separately to beam and target fragments, they test diffractive excitation models.
- Received 25 January 1972
- Published in the issue dated 27 March 1972
© 1972 The American Physical Society