Abstract
Cross sections of antiproton and antinucleus interactions with nuclei are calculated using stochastic averaging method. A new implementation of the Quark-Gluon-String Model (QGSM) is proposed for simulation of multi-particle production in antinucleus-nucleus collisions. A combination of the cross sections and the new implementation of QGSM allows experimental data on antiproton and antinucleus interactions with nuclei to be described. The combination is included in the well-known Geant4 simulation toolkit.
Highlights
One of the most exciting puzzles in cosmology is connected with the question of the existence of antimatter in the Universe
An experimental study of the antinucleus production and reactions requires the knowledge of antinucleus interaction cross sections with the matter
The simulation of the string fragmentation is based on the LUND fragmentation model
Summary
Many particles (pions, K-mesons, baryons and so on) are produced in the antiproton-proton and antinucleus–nucleus interactions To simulate their production, we use the main ideas of the QuarkGluon-String model [4, 5]. The simulation of the string fragmentation is based on the LUND fragmentation model All of these allow the known experimental data to be described successfully. The combination of these models is included in the Geant simulation toolkit [6]. Geant is a software toolkit for the simulation of the passage of particles through matter It is used by a large number of experiments and projects in a variety of application domains, including high energy physics, astrophysics and space science, medical physics and radiation protection
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