JIMMY Generator is a library of routines which should be linked with
the HERWIG
Monte Carlo event generator. JIMMY will allow you to generate multiple
parton scattering events in hadron-hadron, photon-photon or
photon-hadron events.
Download the Source code, Include file,
Example main program for Jimmy 4.1. If you
do this, beware the fortran flag issue below. If you really need jimmy distributed in the single fortran file, please let me know. Otherwise 4.1 will most likely be the last version distributed this way.
Help and Documentation
Link your main program to compiled HERWIG and JIMMY libraries, and
invoke the JIMMY routines as shown in the example main program.
The original
paper describing JIMMY focusses on photoproduction, but
describes the main features and parameters of the basic model.
The latest version of JIMMY, which is the only one recommended,
requires no modification to HERWIG by the user.
There is an ATLAS tutorial by JMB on underlying event models which
contained some details on how to run JIMMY in proton-(anti)proton
events:
slides and video.
A draft write-up of version 4 is
available. Last udated 16/11/2005.
The following should compile an executable, if you download the
jimmy and herwig files to the same directory:
g77 -pg -c -fno-automatic hrw_jimmy.f jimmy.f herwig6507.f
g77 -o hrw_jimmy.exe hrw_jimmy.o herwig6507.o jimmy.o -v -L../lib/linux -L/home/montecarlo/pdflib/pro/lib/linux -lpdflib `cernlib packlib mathlib kernlib` -lnsl -Wl,-u,hwudat_,-u,hwaend_,-u,hwrgen_,-u,hwupcm_,-u,dvnopt_
These worked on my Redhat 7.3 intel x86 laptop, anyway.
Note that for running at LHC energies, JIMMY can produce some very
high multiplicity events, which can overflow the event record of
HERWIG. You may wish to increase NMXHEP.
Bugs, suggestions and requests should be submitted via
the HERWIG issue tracker.
Some results on the generator have been presented at various
workshops and/or published. A selection is given below: