Nuclear reactions in Monte Carlo codes.
The physics foundations of hadronic interactions as implemented in most Monte Carlo codes are presented together with a few practical examples. The description of the relevant physics is presented schematically split into the major steps in order to stress the different approaches required for the full understanding of nuclear reactions at intermediate and high energies. Due to the complexity of the problem, only a few semi-qualitative arguments are developed in this paper. The description will be necessarily schematic and somewhat incomplete, but hopefully it will be useful for a first introduction into this topic. Examples are shown mostly for the high energy regime, where all mechanisms mentioned in the paper are at work and to which perhaps most of the readers are less accustomed. Examples for lower energies can be found in the references.
European Laboratory for Particle Physics (CERN), CH-1211 Geneva 23, Switzerland. alfredo.ferrari@cern.ch
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D003198:Computer Simulation; D008962:Models, Theoretical; D009010:Monte Carlo Method; D009678:Nuclear Energy; D009686:Nuclear Physics / Q000379:methods