Single-particle spectra at fixed angle and duality

A dual resonance amplitude with satellites is applied in order to study the inclusive reactions a+b to x+anything at high energies and at fixed c.m.s. angle of the produced particle. Comparing the asymptotic expansion in this deep inelastic region with the one in the triple-Regge region, it turns out that the contributions of the satellite terms can be expressed by a function which is the same, but which appears with different arguments, in both limits. On the basis of this relationship between small- and large-angle scattering, a dependence of the shapes of single-particle distributions at large angles on the quantum numbers of the channel (ax) can be predicted. (10 refs).