GenEx: A Simple Generator Structure for Exclusive Processes in High Energy Collisions

摘要

A simple C++ class structure for construction of a Monte Carlo eventgenerators which can produce unweighted events within relativistic phase spaceis presented. The generator is self-adapting to the provided matrix element andacceptance cuts. The program is designed specially for exclusive processes andincludes, as an example of such an application, implementation of the model forexclusive production of meson pairs $pp ightarrow p M^+M^- p $ in high energyproton-proton collisions.