GenEx: A simple generator structure for exclusive processes in high energy collisions

TL;DR

GenEx is a C++ class framework for creating Monte Carlo event generators tailored for exclusive high-energy collision processes, adaptable to specific matrix elements and acceptance criteria, demonstrated through meson pair production in proton-proton collisions.

Contribution

It introduces a simple, adaptable generator structure specifically designed for exclusive processes in high-energy physics simulations.

Findings

Efficient generation of unweighted events within relativistic phase space.

Self-adapting to user-provided matrix elements and acceptance cuts.

Application example for exclusive meson pair production in proton-proton collisions.

Abstract

A simple C++ class structure for construction of a Monte Carlo event generators which can produce unweighted events within relativistic phase space is presented. The generator is self-adapting to the provided matrix element and acceptance cuts. The program is designed specially for exclusive processes and includes, as an example of such an application, implementation of the model for exclusive production of meson pairs $pp \rightarrow p M^+M^- p $ in high energy proton-proton collisions.