source = PythiaSource { untracked int32 maxEvents = 0 untracked bool pythiaHepMCVerbosity = false untracked int32 pythiaPylistVerbosity = 1 untracked int32 maxEventsToPrint = 1 PSet PythiaParameters = { # This is a vector of ParameterSet names to be read, in this order # The first two are in the include files below # The last one are simply my additional parameters vstring parameterSets = { "pythiaDefault", "pythiaWW", "myParameters" } # Default (mostly empty - to keep PYTHIA default) card file # Name of the set is "pythiaDefault" include "IOMC/GeneratorInterface/data/pythiaDefault.cff" vstring pythiaWW = { 'MSEL=0 ! User defined processes', 'MSUB(1)=1 ! qq->Z', 'MDME(174,1)=0 ! Decay channel off', 'MDME(175,1)=0 ! Decay channel off', 'MDME(176,1)=0 ! Decay channel off', 'MDME(177,1)=0 ! Decay channel off', 'MDME(178,1)=0 ! Decay channel off', 'MDME(179,1)=0 ! Decay channel off', 'MDME(180,1)=0 ! Decay channel off', 'MDME(181,1)=0 ! Decay channel off', 'MDME(182,1)=0 ! Decay channel off', 'MDME(183,1)=0 ! Decay channel off', 'MDME(184,1)=0 ! Decay channel off', 'MDME(185,1)=0 ! Decay channel off', 'MDME(186,1)=1 ! Z->tau tau on', 'MDME(187,1)=0 ! Decay channel off', 'MDME(188,1)=0 ! Decay channel off', 'MDME(189,1)=0 ! Decay channel off', # 'MSTP(43)=2 ! Only include Z0, not gamma*', # 'CKIN(51)=40 ! pt cut', # 'CKIN(53)=40 ! pt cut' } # User cards - name is "myParameters" # Pythia's random generator initialization vstring myParameters = { # 'MRPY(1)= 123456789 ! Automatically random if -1' } } }