HARDCOL

Hard Color Singlet exchange processes in PYTHIA

All information you need in order to run the program is given in the manual and README file. The physics background is given in Phys. Lett. B 524 (2002) 273 (see below). Please cite this paper if you use this package for anything.

The code was originally written in 2001 for use with PYTHIA 6.2. It was last updated in October 2008 and is now adapted for use with PYTHIA 6.4.18 (and should not be used with any other versions of PYTHIA). The old version was for use with 6.2.15 and is still available for download here. (There is also a version (download) of the new HardCol for use with PYTHIA 6.416. It is otherwise identical to the main version here.)

• README file
• Manual
• Tarball (tar.gz) that contains everything you need. Unpack with "tar -zxvf hardcol2.tar.gz".

Questions? Then contact Rikard Enberg.

Reference:

• Hard colour singlet exchange and gaps between jets at the Tevatron
  Rikard Enberg, Gunnar Ingelman, Leszek Motyka
  Phys. Lett. B 524 (2002) 273-282
  TSL/ISV-2001-0255, hep-ph/0111090