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hepeup.inc
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C...User process event common block.
INTEGER MAXNUP
PARAMETER (MAXNUP=500)
INTEGER NUP,IDPRUP,IDUP,ISTUP,MOTHUP,ICOLUP
DOUBLE PRECISION XWGTUP,SCALUP,AQEDUP,AQCDUP,PUP,VTIMUP,SPINUP
COMMON/HEPEUP/NUP,IDPRUP,XWGTUP,SCALUP,AQEDUP,AQCDUP,IDUP(MAXNUP),
&ISTUP(MAXNUP),MOTHUP(2,MAXNUP),ICOLUP(2,MAXNUP),PUP(5,MAXNUP),
&VTIMUP(MAXNUP),SPINUP(MAXNUP)
C
C Les Houches accord 2001
C
C NUP - number of particle entries in this event
C IDPRUP - ID of the process for this event
C (ID's are generator-specific)
C XWGTUP - event weight
C SCALUP - scale of the event in GeV, as used to calculate PDFs
C AQEDUP - QED coupling used for this event
C AQCDUP - QCD coupling used for this event
C IDUP - particle ID according to PDG convention
C ISTUP - status code:
C -1 incoming particle
C +1 outgoing final state particle
C -2 intermediate space like propagator
C +2 intermediate resonance, mass should be preserved
C +3 intermediate resonance for documentation only
C -9 incoming beam particles (generally not needed)
C MOTHUP - index of first and last mother
C ICOLUP - tag for color flow lines
C PUP - lab frame 4 momentum and mass in GeV
C VTIMUP - invariant lifetime
C SPINUP - cos of angle between spin-vector of particle and 3 momentum of decaying particle
C

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