Hard diffractive scattering in high energy ep collisions and the Monte Carlo Generator RAPGAP

Abstract
The program RAPGAP generates events in ep collisions where the electron is scattered on a pomeron P coupled to the proton p. A gap in rapidity between the fast moving proton and the remaining hadronic system is observed. The program is applicable to photoproduction (Q^2{reversed tilde equals} 0) as well as deep inelastic scattering (Q^2> 0). Different types of hard interaction processes such as γ* q → q′ and γrg → q q ̄ for light and heavy quarks are included. Several options for the para...

Title of program: RAPGAP version 1.0
Catalogue Id: ADAR_v1_0

Nature of problem
Inelastic ep scattering is an ideal tool to study properties of a possible partonic (quark or gluon) nature of the pomeron. Partonic interactions of the photon with quarks and gluon coming from the pomeron are calculated. Such kind of events have a gap in energyflow between the fast moving proton and the rest of the hadronic system. Such events have been found recently in the experiments at the HERA collider [1,2].

Versions of this program held in the CPC repository in Mendeley Data
ADAR_v1_0; RAPGAP version 1.0; 10.1016/0010-4655(94)00150-Z

This program has been imported from the CPC Program Library held at Queen's University Belfast (1969-2019)