THE SINGLE DIFFRACTIVE COMPONENT IN HADRON-HADRON COLLISIONS WITHIN THE 2-COMPONENT DUAL PARTON MODEL

The single diffractive component in hadron-hadron interactions is stud ied in the two-component Dual Parton Model. We distinguish high mass s ingle diffraction represented by a triple-Pomeron exchange and low mas s single diffraction described via a two channel eikonal method. The c alculated single diffractive cross sections, and the distributions agr ee quite well with data from collider and fixed target experiments. Th e fit of the model parameters to cross section data gives a extrapolat ion of the total, elastic, and single diffractive cross sections to su percollider energies which depends on the parton structure functions u sed for the minijet component.