HIPPOPO a Monte Carlo generator for particle production in the Quark Gluon String Model

HIPPOPO (Hadron Induced Particle Production Off Pomeron Outpour) is a program to simulate the production of hadrons via the multipomeron exchange mechanism in a high energy hadron collision. The underlying algorithm is based upon the Quark Gluon String Model developed over the years by many authors [1]-[20]. For the initial colliding beams the User can choose among the following species: nucleons, atomic nuclei, π, K, φ and J/ψ mesons, Λ, Σ and Ξ hyperons (of any explicitly stated charge), and their antiparticles. Also, the program allows photon beams. In the latter case, the photon is treated as a superposition of ρ, φ and J/ψ mesons according to the Vector Dominance Model. The produced hadron may be a π, η, ρ, ω, K, φ, D, Ds or J/ψ meson, nucleon N , Λ, Σ, Ξ or Ω hyperon, Λc or Ξc baryon, an antiparticle or an excited state of any mentioned hadron. The program yields the fully differential inclusive cross section. However, it is not a full event generator, because it only focuses on the inclusive production properties of the user-defined hadron, while the accompanying particles are not taken into account.