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Next: 4.1.3 PYTHIA6 Up: 4.1 User event generator. Previous: 4.1.1 JETSET   Contents


4.1.2 PYTHIA5

No other action than to add the card
+USE,PYTHIA.
into the cradle is needed to replace LUEEVT by PYTHIA. Note that during the initialisation-phase, the steering file will be read twice when using PYTHIA, once before calling PYINIT, once after. The reason is that the calulations done in PYINIT might change the values give to certain parameters. By reading the steering-cards once again ensures that the parameter-values are really the ones defined by the user. The inconvenience with this procedure is that the user must make sure that the parameters given are not contradictory.



Mikael Berggren 2003-03-27