Dynamics of diffractive dissociation

TL;DR

This paper presents a QCD-based model that describes various properties of diffractive processes at high energies, including cross sections, particle distributions, and transverse momenta, providing a comprehensive understanding of diffractive dissociation.

Contribution

The paper introduces a novel QCD-inspired model that captures key features of diffractive dissociation, including detailed predictions for cross sections and particle distributions at high energies.

Findings

Model accurately describes total and differential cross sections.

Predicts multiplicity distributions in diffractive and inelastic collisions.

Provides insights into transverse momentum characteristics of secondary particles.

Abstract

We describe a QCD based model which incorporates the main properties of the inclusive particle distributions expected for diffractive processes, including the diffractive dissociation at high energies. We study, in turn, the total cross section, $\sigma_{tot}$, the differential elastic, $d\sigma_{el}/dt$, cross section, the dependence of the single proton dissociation cross section, $\xi d^{SD}/d\xi $, on the momentum fraction, $\xi = 1-x_L$, lost by the leading proton, the multiplicity distributions in inelastic (non-diffractive) collisions and in the processes of dissociation. Besides this we calculate the mean transverse momenta of the `wee partons' (secondaries) produced in the case of dissociation (that is in the processes with a large rapidity gap) and compare it with that in inelastic interactions.