MARS Code Developments

TL;DR

This paper details recent enhancements to the MARS13(98) Monte Carlo code, including new physical models, algorithms, and benchmarking against experimental data for simulating high-energy particle interactions with matter.

Contribution

Introduction of new physical models, algorithms, and comprehensive benchmarking in the MARS13(98) code for improved simulation accuracy.

Findings

Enhanced simulation capabilities for cascades in complex media

New models for hadron, lepton, and neutrino interactions

Benchmark results show improved agreement with experimental data

Abstract

Recent developments in the physical model of 1 MeV to 100 TeV hadron and lepton interactions with nuclei and atoms are described. These include a new nuclear cross section library, a model for soft pion production, the cascade-exciton model, the dual parton model, deuteron-nucleus and neutrino-nucleus interaction models, detailed description of muon, pion, and antiproton absorption and a unified treatment of muon and charged hadron electromagnetic interactions with matter. New algorithms are implemented into the MARS13(98)} Monte Carlo code and benchmarked against experimental data. The code capabilities to simulate cascades and generate a variety of results in complex media have been also enhanced.