View source for PYTHIA

'''PYTHIA''' is a computer simulation program for particle collisions at very high energies (see [[event (particle physics)]]) in [[particle accelerator]]s.<ref name="pythia-intro">{{cite web |title=About PYTHIA |url=https://pythia.org/about/ |website=PYTHIA Webpage |publisher=PYTHIA collaboration |access-date=3 June 2021 |ref=pythia-intro}}</ref>
==History==
PYTHIA was originally written in FORTRAN 77, until the 2007 release of PYTHIA 8.1 which was rewritten in C++.<ref name="pythia-intro"/> Both the Fortran and C++ versions were maintained until 2012 because not all components had been merged into the 8.1 version.<ref name="pythia-intro" /> However, the latest version already includes new features not available in the Fortran release.<ref name="pythia-ancient">{{cite web |title=Ancient program versions |url=https://pythia.org/pythia6/ |website=PYTHIA Webpage |publisher=PYTHIA collaboration |access-date=3 June 2021}}</ref> PYTHIA is developed and maintained by an international collaboration of physicists, consisting of Christian Bierlich, Nishita Desai, Leif Gellersen, Ilkka Helenius, Philip Ilten, Leif Lönnblad, Stephen Mrenna, Stefan Prestel, Christian Preuss, [[Torbjörn Sjöstrand]], Peter Skands, Marius Utheim and Rob Verheyen.<ref name="pythia-contact">{{cite web |title=Contact information |url=https://pythia.org/authors/ |website=PYTHIA Webpage |publisher=PYTHIA collaboration |access-date=3 June 2021}}</ref>
==Features==
The following is a list of some of the features PYTHIA is capable of simulating:<ref name="pythia-intro" />
* Hard and soft interactions
* [[Parton (particle physics)|Parton]] distributions
* Initial/final-state parton showers
* Multiparton interactions
* [[Hadronization|Fragmentation]] and decay
==See also==
* [[Particle physics]]
* [[Particle decay]]
==References==
{{reflist}}
==Further reading==
*{{cite journal |arxiv=1907.09874|doi=10.1016/j.cpc.2019.106910|title=The Pythia event generator: Past, present and future|year=2020|last1=Sjöstrand|first1=Torbjörn|journal=Computer Physics Communications|volume=246|page=106910|bibcode=2020CoPhC.24606910S}}
==External links==
* [http://pythia.org The official PYTHIA page]
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[[Category:Monte Carlo particle physics software]]
[[Category:Physics software]]
[[Category:Software that was rewritten in C++]]
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