PROBABILITY DESCRIPTION OF FINAL-STATE DISTRIBUTION IN INDEPENDENT FRAGMENTATION MODEL

We present a probability account of the density distribution for final states in a class of independent fragmentation models. The formalism leads to a simple but exact expression for the single-particle distrib ution of the final states. As an example, me discuss a particular mode l used in high-energy parton-parton and e(+)e(-) scatterings - the ind ependent jet fragmentation model. The universality and simplicity of t he probability description allow us to apply our formalism to various physical processes of fragmentation nature.