! ZZ boson production parameters

vdecaymodeZ1 11  ! PDG code for charged decay product of the vector boson (11:e-; -11:e+; ...)
vdecaymodeZ2 11  ! PDG code for charged decay product of the vector boson (11:e-; -11:e+; ...)
mllmin 4d0     ! Minimum invariant mass of lepton pairs from Z decay
#dronly 0        ! default 0; if 1 only double resonant diagrams
#zerowidth 0    ! default 0 (offshell Zs); if 1 generate Z's on shell
withinterference 1 ! default 1; 0 switches off interfernce for same flavour charged leptons (no used
 
numevts NEVENTS    ! number of events to be generated
ih1   1           ! hadron 1 (1 for protons, -1 for antiprotons)
ih2   1           ! hadron 2 (1 for protons, -1 for antiprotons)
ebeam1 4000d0     ! energy of beam 1
ebeam2 4000d0     ! energy of beam 2
! To be set only if using LHA pdfs
lhans1   10800    ! pdf set for hadron 1 (LHA numbering)
lhans2   10800    ! pdf set for hadron 2 (LHA numbering)
! To be set only if using internal mlm pdf
#ndns1 131         ! pdf set for hadron 1 (mlm numbering)
#ndns2 131         ! pdf set for hadron 2 (mlm numbering)
! To be set only if using different pdf sets for the two incoming hadrons
! QCDLambda5  0.25 ! for not equal pdf sets
 
! Parameters to allow or not the use of stored data
use-old-grid    0 ! if 1 use old grid if file pwggrids.dat is present (<> 1 regenerate)
use-old-ubound  0 ! if 1 use norm of upper bounding function stored in pwgubound.dat, if present; 
 
ncall1   300000   ! number of calls for initializing the integration grid
itmx1    5        ! number of iterations for initializing the integration grid
ncall2   1000000  ! number of calls for computing the integral and finding upperbounds
itmx2    7        ! number of iterations for computing the integral and finding upper bound
foldcsi   1       ! number of folds on csi integration
foldy     1       ! number of folds on  y  integration
foldphi   1       ! number of folds on phi integration
nubound  750000   ! number of bbarra calls to setup norm of upper bounding function
 
! OPTIONAL PARAMETERS
 
#renscfact  1d0   ! (default 1d0) ren scale factor: muren  = muref * renscfact
#facscfact  1d0   ! (default 1d0) fac scale factor: mufact = muref * facscfact
#bornonly   0      ! (default 0) if 1 do Born only
#withdamp 0        ! (default 1) if 0 do not apply (no remnants)
testplots  1      ! (default 0, do not) do NLO and PWHG distributions
 
iseed   SEED      ! initialize random number sequence
rand1   -1      ! initialize random number sequence
rand2   -1      ! initialize random number sequence
 
#manyseeds  1      ! Used to perform multiple runs with different random
                   ! seeds in the same directory.
                   ! If set to 1, the program asks for an integer j;
                   ! The file pwgseeds.dat at line j is read, and the
                   ! integer at line j is used to initialize the random
                   ! sequence for the generation of the event.
                   ! The event file is called pwgevents-'j'.lhe
 
 
withnegweights 1