New Monte Carlo Implementation of Quark-Gluon-String model of p-barp-Interactions

A problem of soft p-barp-interaction description is considered in the framework of the Dual Parton or Quark-Gluon-String model. The model is a combination of the Regge phenomenology, quark ideas, and 1/Nf expansion of QCD. The cross sections of the p-barp-processes are given by the Regge phenomenology. According to the 1/Nf expansion of QCD, inelastic interactions are treated as creation of quark-gluon strings. The string fragmentation is considered at quark level. The main problem is a description of low mass string fragmentation and fragmentation of massive constituent quarks. It is solved by choosing various phenomenological dependencies. As a results, a good description of π+π-, K+K-, n-barn, Λ-barΛ and other channels of the interactions has been reached, and a Monte Carlo program for event simulation of the interactions is proposed