Hadronic fragmentation as a probe of the underlying dynamics of hadron collisions

We demonstrate that measurements of the power-law behavior of single and double fragmentation cross sections (A+B→C+X and A+B→C+D+X) at high energies are capable of distinguishing between different models of hadronic interactions. Present evidence supports the idea that quark exchange or annihilation is the dominant strong interaction at present energies; further tests are proposed.