Internal Symmetries and Model-Independent Relations for Inclusive Processes

Abstract

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, $\Lambda -{\Sigma }^0$ 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 $\overline{p}d$ or $\overline{p}\alpha$ annihilation. Applied separately to beam and target fragments, they test diffractive excitation models.