2014

An Introduction to PYTHIA 8.2

Sjöstrand, Torbjörn, Ask, Stefan, Christiansen, Jesper R. et al.

Understand

The PYTHIA program is a standard tool for the generation of events in high-energy collisions, comprising a coherent set of physics models for the evolution from a few-body hard process to a complex multiparticle final state.

  • It contains a library of hard processes, models for initial- and final-state parton showers, matching and merging methods between hard processes and parton showers, multiparton interactions, beam remnants, string fragmentation and particle decays.
  • It also has a set of utilities and several interfaces to external programs.
  • PYTHIA 8.2 is the second main release after the complete rewrite from Fortran to C++, and now has reached such a maturity that it offers a complete replacement for most applications, notably for LHC physics studies.

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