001 module enable Pythia
002 talk Pythia
003 PythiaMenu
004 # set process to none, override with msub below
005 msel set 0
006 cmEnergy set 1960
007 inListLevel set 0
008 evListLevel set 1
009 # put the Z onshell
010 commonMenu
011 # diphotons
012 set_msub -index=18 -value=1
013 set_msub -index=114 -value=1
014 # set q**2 scale to -t_hat
015 set_mstp -index=32 -value=5
016 # set minimum pt of hard process in GeV, approx=min photon pt
017 set_ckin -index=3 -value=6
018 exit
019 exit
020 exit
021 #-----------------------------------------------------------------------
022 # Pythia tunings
023 #-----------------------------------------------------------------------
024 source $env(PROJECT_DIR)/mcProduction/tcl/mc_Pythia_pdf_CTEQ5L.tcl
025 source $env(PROJECT_DIR)/mcProduction/tcl/mc_Pythia_underlying_event_A.tcl
026
Send problems or questions to cdfcode@fnal.gov