PYTHIA 8

Welcome to PYTHIA - The Lund Monte Carlo!

PYTHIA 8 is still at an early stage, and should not be used for any production runs. What is offered here is only a snapshot, to allow interested users to provide feedback on the basic structure. The program is under active development, however, and is intended to replace the existing PYTHIA 6 within the next few years.

Use the left-hand index to navigate in the existing documentation, e.g. to learn which flags, modes and parameters can be set by the user. Also note that there is a separate Brief Introduction (as a pdf file), that offers the best way to get to understand the basic structure of PYTHIA 8. The current pages offer the more detailed picture, with the corresponding danger of then losing overview.

The complete PYTHIA 6.4 Physics and Manual, published in
T. Sjöstrand, S. Mrenna and P. Skands, JHEP05 (2006) 026,
in detail describes the physics (partly) implemented also in PYTHIA 8. It therefore is the main reference that you should quote, whether you use PYTHIA 6 or PYTHIA 8.

Main author:
Torbjörn Sjöstrand
CERN/PH, CH-1211 Geneva, Switzerland, and
Department of Theoretical Physics, Lund University, Lund, Sweden
phone: + 41 - 22 - 767 82 27
e-mail: torbjorn@thep.lu.se

Author:
Stephen Mrenna
Computing Division, Simulations Group
Fermi National Accelerator Laboratory
MS 234, Batavia, IL 60510, USA
phone: + 1 - 630 - 840 - 2556
e-mail: mrenna@fnal.gov

Author:
Peter Skands
Theoretical Physics Department
Fermi National Accelerator Laboratory
MS 106, Batavia, IL 60510, USA
phone: + 1 - 630 - 840 - 2270
e-mail: skands@fnal.gov

The program and the documentation is Copyright © 2006 Torbjörn Sjöstrand