Dual-Amplitude Analysis of Two-Particle Productions

We present the results on the two-particle production cross section for the process $a+b\to x_1+x_2+\mathrm{anything}$ at high energy predicted by the dual-resonance model. The distribution functions for all the kinematic regions are shown to have the desired variable dependence and properties. In particular, we find that the two-particle "correlation length" is of the order of 1 ${\mathrm{GeV}}^{-1\mathrm{}}$.