1. History

2. Features

3. See also

4. External links

PYTHIA is a computer simulation program for particle collisions at very high energies (see event (particle physics)) in particle accelerators.

History

PYTHIA was originally written in FORTRAN 77, until the 2007 release of PYTHIA 8.1 which was rewritten in C++. Both the Fortran and C++ versions are being maintained because not all components were merged into the 8.1 version. However, the latest version already includes new features not available in the Fortran release. Torbjörn Sjöstrand, Stefan Ask, Richard Corke, Stephen Mrenna, Stefan Prestel, and Peter Skands are the main contributors to PYTHIA.

Features

The following is a list of some of the features PYTHIA is capable of simulating:

• Hard and soft interactions
• Parton distributions
• Initial/final-state parton showers
• Multiple interactions
• Fragmentation and decay

See also

• Particle physics
• Particle decay

External links

• The official PYTHIA page
• Help develop PYTHIA or download it

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