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|
Program DRIVER
c**************************************************************************
c This is the driver for the whole calculation
c**************************************************************************
use extra_weights
use mint_module
implicit none
C
C CONSTANTS
C
double precision zero
parameter (ZERO = 0d0)
include 'nexternal.inc'
include 'genps.inc'
C
C LOCAL
C
integer i,j,k,l,l1,l2,kchan
character*130 buf
c
c Global
c
cc
include 'run.inc'
include 'coupl.inc'
c Vegas stuff
integer nndim
common/tosigint/nndim
real*8 sigint
external sigint
integer irestart
logical savegrid
logical flat_grid
common/to_readgrid/flat_grid !Tells if grid read from file
integer i_momcmp_count
double precision xratmax
common/ccheckcnt/i_momcmp_count,xratmax
character*4 abrv
common /to_abrv/ abrv
integer n_mp, n_disc
integer ixi_i,iphi_i,iy_ij,vn
logical putonshell
logical unwgt
double precision evtsgn
common /c_unwgt/evtsgn,unwgt
logical SHsep
logical Hevents
common/SHevents/Hevents
character*10 dum
c statistics for MadLoop
integer ntot,nsun,nsps,nups,neps,n100,nddp,nqdp,nini,n10,n1(0:9)
common/ups_stats/ntot,nsun,nsps,nups,neps,n100,nddp,nqdp,nini,n10,n1
double precision virtual_over_born
common/c_vob/virtual_over_born
include 'orders.inc'
c timing statistics
include "timing_variables.inc"
real*4 tOther, tTot
c general MadFKS parameters
include "FKSParams.inc"
c applgrid
integer iappl
common /for_applgrid/ iappl
c stats for granny_is_res
double precision deravg,derstd,dermax,xi_i_fks_ev_der_max
& ,y_ij_fks_ev_der_max
integer ntot_granny,derntot,ncase(0:6)
common /c_granny_counters/ ntot_granny,ncase,derntot,deravg,derstd
& ,dermax,xi_i_fks_ev_der_max,y_ij_fks_ev_der_max
logical useitmax
common/cuseitmax/useitmax
C-----
C BEGIN CODE
C-----
useitmax=.false. ! to be overwritten in open_output_files.f if need be
c
c Setup the timing variable
c
call cpu_time(tBefore)
fixed_order=.true.
nlo_ps=.false.
c Read general MadFKS parameters
c
call FKSParamReader(paramFileName,.TRUE.,.FALSE.)
min_virt_fraction_mint=min_virt_fraction
do kchan=1,maxchannels
do i=0,n_ave_virt
average_virtual(i,kchan)=0d0
enddo
virtual_fraction(kchan)=max(virt_fraction,min_virt_fraction)
enddo
n_ord_virt=amp_split_size
c
c Read process number
c
ntot_granny=0
derntot=0
do i=0,6
ncase(i)=0
enddo
ntot=0
nsun=0
nsps=0
nups=0
neps=0
n100=0
nddp=0
nqdp=0
nini=0
n10=0
do i=0,9
n1(i)=0
enddo
call setrun !Sets up run parameters
call setpara('param_card.dat') !Sets up couplings and masses
call setcuts !Sets up cuts and particle masses
call printout !Prints out a summary of paramaters
call run_printout !Prints out a summary of the run settings
call initcluster
call check_amp_split
c
c Get user input
c
write(*,*) "getting user params"
call get_user_params(ncalls0,itmax,imode)
if(imode.eq.0)then
flat_grid=.true.
else
flat_grid=.false.
endif
ndim = 3*(nexternal-nincoming)-4
if (abs(lpp(1)) .ge. 1) ndim=ndim+1
if (abs(lpp(2)) .ge. 1) ndim=ndim+1
nndim=ndim
c Don't proceed if muF1#muF2 (we need to work out the relevant formulae
c at the NLO)
if( ( fixed_fac_scale .and.
# (muF1_over_ref*muF1_ref_fixed) .ne.
# (muF2_over_ref*muF2_ref_fixed) ) .or.
# ( (.not.fixed_fac_scale) .and.
# muF1_over_ref.ne.muF2_over_ref ) )then
write(*,*)'NLO computations require muF1=muF2'
stop
endif
write(*,*) "about to integrate ", ndim,ncalls0,itmax
c APPLgrid
if (imode.eq.0) iappl=0 ! overwrite when starting completely fresh
if(iappl.ne.0) then
write(6,*) "Initializing aMCfast ..."
c Set flavor map, starting from all possible
c parton lumi configurations defined in initial_states_map.dat
call setup_flavourmap
c Fill the number of combined matrix elements for given initial state luminosity
call find_iproc_map
write(6,*) " ... done."
endif
if (abrv(1:4).eq.'virt') then
only_virt=.true.
else
only_virt=.false.
endif
c Prepare the MINT folding
do j=1,ndimmax
if (j.le.ndim) then
ifold(j)=1
else
ifold(j)=0
endif
enddo
ifold_energy=ndim-2
ifold_yij=ndim-1
ifold_phi=ndim
c
i_momcmp_count=0
xratmax=0.d0
unwgt=.false.
call addfil(dum)
if (imode.eq.-1.or.imode.eq.0) then
if(imode.eq.0)then
c Don't safe the reweight information when just setting up the grids.
doreweight=.false.
do_rwgt_scale=.false.
do_rwgt_pdf=.false.
else
doreweight=do_rwgt_scale.or.do_rwgt_pdf
endif
c
write (*,*) 'imode is ',imode
if (ickkw.eq.-1) then
min_virt_fraction=1d0
do kchan=1,nchans
virtual_fraction(kchan)=1d0
enddo
endif
call mint(sigint)
call topout
call deallocate_weight_lines
c
else
write (*,*) 'Unknown imode',imode
stop
endif
if (ntot.ne.0) then
write(*,*) "Satistics from MadLoop:"
write(*,*)
& " Total points tried: ",ntot
write(*,*)
& " Stability unknown: ",nsun
write(*,*)
& " Stable PS point: ",nsps
write(*,*)
& " Unstable PS point (and rescued): ",nups
write(*,*)
& " Exceptional PS point (unstable and not rescued): ",neps
write(*,*)
& " Double precision used: ",nddp
write(*,*)
& " Quadruple precision used: ",nqdp
write(*,*)
& " Initialization phase-space points: ",nini
write(*,*)
& " Unknown return code (100): ",n100
write(*,*)
& " Unknown return code (10): ",n10
write(*,*)
& " Unit return code distribution (1): "
do j=0,9
if (n1(j).ne.0) then
write(*,*) "#Unit ",j," = ",n1(j)
endif
enddo
endif
write (*,*) 'counters for the granny resonances'
write (*,*) 'ntot ',ntot_granny
if (ntot_granny.gt.0) then
do i=0,6
write (*,*) '% icase ',i,' : ',ncase(i)/dble(ntot_granny)
enddo
write (*,*) 'average,std dev. and max of derivative:',deravg
& ,sqrt(abs(derstd-deravg**2)),dermax
write (*,*)
& 'and xi_i_fks and y_ij_fks corresponding to max of der.',
& xi_i_fks_ev_der_max,y_ij_fks_ev_der_max
endif
call cpu_time(tAfter)
tTot = tAfter-tBefore
tOther = tTot - (tBorn+tGenPS+tReal+tCount+tIS+tFxFx+tf_nb+tf_all
& +t_as+tr_s+tr_pdf+t_plot+t_cuts+t_MC_subt+t_isum+t_p_unw
$ +t_write)
write(*,*) 'Time spent in Born : ',tBorn
write(*,*) 'Time spent in PS_Generation : ',tGenPS
write(*,*) 'Time spent in Reals_evaluation: ',tReal
write(*,*) 'Time spent in MCsubtraction : ',t_MC_subt
write(*,*) 'Time spent in Counter_terms : ',tCount
write(*,*) 'Time spent in Integrated_CT : ',tIS-tOLP
write(*,*) 'Time spent in Virtuals : ',tOLP
write(*,*) 'Time spent in FxFx_cluster : ',tFxFx
write(*,*) 'Time spent in Nbody_prefactor : ',tf_nb
write(*,*) 'Time spent in N1body_prefactor : ',tf_all
write(*,*) 'Time spent in Adding_alphas_pdf : ',t_as
write(*,*) 'Time spent in Reweight_scale : ',tr_s
write(*,*) 'Time spent in Reweight_pdf : ',tr_pdf
write(*,*) 'Time spent in Filling_plots : ',t_plot
write(*,*) 'Time spent in Applying_cuts : ',t_cuts
write(*,*) 'Time spent in Sum_ident_contr : ',t_isum
write(*,*) 'Time spent in Pick_unwgt : ',t_p_unw
write(*,*) 'Time spent in Write_events : ',t_write
write(*,*) 'Time spent in Other_tasks : ',tOther
write(*,*) 'Time spent in Total : ',tTot
open (unit=12, file='res.dat',status='unknown')
do kchan=0,nchans
write (12,*)ans(1,kchan),unc(1,kchan),ans(2,kchan),unc(2,kchan)
$ ,itmax,ncalls0,tTot
enddo
close(12)
if(i_momcmp_count.ne.0)then
write(*,*)' '
write(*,*)'WARNING: genps_fks code 555555'
write(*,*)i_momcmp_count,xratmax
endif
end
block data timing
c timing statistics
include "timing_variables.inc"
data tOLP/0.0/
data tGenPS/0.0/
data tBorn/0.0/
data tIS/0.0/
data tReal/0.0/
data tCount/0.0/
data tFxFx/0.0/
data tf_nb/0.0/
data tf_all/0.0/
data t_as/0.0/
data tr_s/0.0/
data tr_pdf/0.0/
data t_plot/0.0/
data t_cuts/0.0/
data t_MC_subt/0.0/
data t_isum/0.0/
data t_p_unw/0.0/
data t_write/0.0/
end
double precision function sigint(xx,vegas_wgt,ifl,f)
use weight_lines
use extra_weights
use mint_module
implicit none
include 'nexternal.inc'
include 'nFKSconfigs.inc'
include 'run.inc'
include 'orders.inc'
include 'fks_info.inc'
double precision xx(ndimmax),vegas_wgt,f(nintegrals),jac,p(0:3
$ ,nexternal),rwgt,vol,sig,x(99),MC_int_wgt
integer ifl,nFKS_born,nFKS_picked,iFKS,nFKS_min,iamp
$ ,nFKS_max,izero,ione,itwo,mohdr,i,iran_picked
parameter (izero=0,ione=1,itwo=2,mohdr=-100)
logical passcuts,passcuts_nbody,passcuts_n1body,sum,firsttime
data firsttime/.true./
external passcuts
integer ini_fin_fks(maxchannels)
common/fks_channels/ini_fin_fks
data sum /.false./
integer nndim
common/tosigint/nndim
logical nbody
common/cnbody/nbody
double precision p1_cnt(0:3,nexternal,-2:2),wgt_cnt(-2:2)
$ ,pswgt_cnt(-2:2),jac_cnt(-2:2)
common/counterevnts/p1_cnt,wgt_cnt,pswgt_cnt,jac_cnt
double precision p_born(0:3,nexternal-1)
common /pborn/ p_born
double precision virtual_over_born
common/c_vob/virtual_over_born
logical calculatedBorn
common/ccalculatedBorn/calculatedBorn
character*4 abrv
common /to_abrv/ abrv
integer iappl
common /for_applgrid/ iappl
double precision wgt_ME_born,wgt_ME_real
common /c_wgt_ME_tree/ wgt_ME_born,wgt_ME_real
integer ini_fin_fks_map(0:2,0:fks_configs)
save ini_fin_fks_map
if (new_point .and. ifl.ne.2) then
pass_cuts_check=.false.
endif
if (firsttime) then
firsttime=.false.
call setup_ini_fin_fks_map(ini_fin_fks_map)
write (*,*) 'initial-final FKS maps:'
write (*,*) 0 ,':',ini_fin_fks_map(0,:)
write (*,*) 1 ,':',ini_fin_fks_map(1,:)
write (*,*) 2 ,':',ini_fin_fks_map(2,:)
endif
if (ifl.ne.0) then
write (*,*) 'ERROR ifl not equal to zero in sigint',ifl
stop 1
endif
if (iappl.ne.0 .and. sum) then
write (*,*) 'WARNING: applgrid only possible '/
& /'with MC over FKS directories',iappl,sum
write (*,*) 'Switching to MC over FKS directories'
sum=.false.
endif
sigint=0d0
icontr=0
do iamp=0,amp_split_size
virt_wgt_mint(iamp)=0d0
born_wgt_mint(iamp)=0d0
enddo
virtual_over_born=0d0
wgt_me_born=0d0
wgt_me_real=0d0
if (ickkw.eq.-1) H1_factor_virt=0d0
if (ickkw.eq.3) call set_FxFx_scale(0,p)
call update_vegas_x(xx,x)
call get_MC_integer(max(ini_fin_fks(ichan),1)
$ ,ini_fin_fks_map(ini_fin_fks(ichan),0),iran_picked,vol)
nFKS_picked=ini_fin_fks_map(ini_fin_fks(ichan),iran_picked)
c The nbody contributions
if (abrv.eq.'real') goto 11
nbody=.true.
calculatedBorn=.false.
call get_born_nFKSprocess(nFKS_picked,nFKS_born)
call update_fks_dir(nFKS_born)
if (ini_fin_fks(ichan).eq.0) then
jac=1d0
else
jac=0.5d0
endif
call generate_momenta(nndim,iconfig,jac,x,p)
if (p_born(0,1).lt.0d0) goto 12
call compute_prefactors_nbody(vegas_wgt)
call set_cms_stuff(izero)
passcuts_nbody=passcuts(p1_cnt(0,1,0),rwgt)
if (passcuts_nbody) then
pass_cuts_check=.true.
if (ickkw.eq.3) call set_FxFx_scale(1,p1_cnt(0,1,0))
call set_alphaS(p1_cnt(0,1,0))
if (abrv(1:2).ne.'vi') then
call compute_born
endif
if (abrv.ne.'born') then
call compute_nbody_noborn
endif
endif
11 continue
c The n+1-body contributions (including counter terms)
if ( abrv(1:4).eq.'born' .or.
$ abrv(1:4).eq.'bovi' .or.
$ abrv(1:2).eq.'vi' ) goto 12
nbody=.false.
if (sum) then
nFKS_min=1
nFKS_max=ini_fin_fks_map(ini_fin_fks(ichan),0)
MC_int_wgt=1d0
else
nFKS_min=iran_picked
nFKS_max=iran_picked
MC_int_wgt=1d0/vol
endif
do i=nFKS_min,nFKS_max
iFKS=ini_fin_fks_map(ini_fin_fks(ichan),i)
calculatedBorn=.false.
! MZ this is a temporary fix for processes without
! soft singularities associated to the initial state
! DO NOT extend this fix to event generation
wgt_me_born=0d0
wgt_me_real=0d0
jac=MC_int_wgt
call update_fks_dir(iFKS)
call generate_momenta(nndim,iconfig,jac,x,p)
if (p_born(0,1).lt.0d0) cycle
call compute_prefactors_n1body(vegas_wgt,jac)
call set_cms_stuff(izero)
passcuts_nbody =passcuts(p1_cnt(0,1,0),rwgt)
call set_cms_stuff(mohdr)
passcuts_n1body=passcuts(p,rwgt)
if (passcuts_nbody .and. abrv.ne.'real') then
pass_cuts_check=.true.
call set_cms_stuff(izero)
if (ickkw.eq.3) call set_FxFx_scale(2,p1_cnt(0,1,0))
call set_alphaS(p1_cnt(0,1,0))
call compute_soft_counter_term(0d0)
call set_cms_stuff(ione)
call compute_collinear_counter_term(0d0)
call set_cms_stuff(itwo)
call compute_soft_collinear_counter_term(0d0)
endif
if (passcuts_n1body) then
pass_cuts_check=.true.
call set_cms_stuff(mohdr)
if (ickkw.eq.3) call set_FxFx_scale(3,p)
call set_alphaS(p)
call compute_real_emission(p,1d0)
endif
enddo
12 continue
c Include PDFs and alpha_S and reweight to include the uncertainties
if (ickkw.eq.-1) call include_veto_multiplier
call include_PDF_and_alphas
if (doreweight) then
if (do_rwgt_scale .and. ickkw.ne.-1) call reweight_scale
if (do_rwgt_scale .and. ickkw.eq.-1) call reweight_scale_NNLL
if (do_rwgt_pdf) call reweight_pdf
endif
if (iappl.ne.0) then
if (sum) then
write (*,*) 'ERROR: applgrid only possible '/
& /'with MC over FKS directories',iappl,sum
stop 1
endif
call fill_applgrid_weights(vegas_wgt)
endif
c Importance sampling for FKS configurations
if (sum) then
call get_wgt_nbody(sig)
call fill_MC_integer(max(ini_fin_fks(ichan),1),iran_picked
$ ,abs(sig))
else
call get_wgt_no_nbody(sig)
call fill_MC_integer(max(ini_fin_fks(ichan),1),iran_picked
$ ,abs(sig)*vol)
endif
c Finalize PS point
call fill_plots
call fill_mint_function(f)
return
end
subroutine update_fks_dir(nFKS)
implicit none
include 'run.inc'
integer nFKS
integer nFKSprocess
common/c_nFKSprocess/nFKSprocess
nFKSprocess=nFKS
call fks_inc_chooser()
call leshouche_inc_chooser()
call setcuts
call setfksfactor(.false.)
if (ickkw.eq.3) call configs_and_props_inc_chooser()
return
end
subroutine setup_ini_fin_FKS_map(ini_fin_FKS_map)
implicit none
include 'nexternal.inc'
include 'nFKSconfigs.inc'
include 'fks_info.inc'
integer ini_fin_FKS_map(0:2,0:fks_configs),iFKS
ini_fin_FKS_map(0,0)=0
ini_fin_FKS_map(1,0)=0
ini_fin_FKS_map(2,0)=0
do iFKS=1,fks_configs
ini_fin_FKS_map(0,0)=ini_fin_FKS_map(0,0)+1
ini_fin_FKS_map(0,ini_fin_FKS_map(0,0))=iFKS
if (fks_j_d(iFKS).le.nincoming .and.
$ fks_j_d(iFKS).gt.0) then
ini_fin_FKS_map(2,0)=ini_fin_FKS_map(2,0)+1
ini_fin_FKS_map(2,ini_fin_FKS_map(2,0))=iFKS
elseif (fks_j_d(iFKS).gt.nincoming .and.
$ fks_j_d(iFKS).le.nexternal) then
ini_fin_FKS_map(1,0)=ini_fin_FKS_map(1,0)+1
ini_fin_FKS_map(1,ini_fin_FKS_map(1,0))=iFKS
else
write (*,*) 'ERROR in setup_ini_fin_FKS_map',fks_j_d(iFKS)
$ ,nincoming,iFKS
stop 1
endif
enddo
return
end
subroutine get_born_nFKSprocess(nFKS_in,nFKS_out)
implicit none
include 'nexternal.inc'
include 'nFKSconfigs.inc'
include 'fks_info.inc'
integer nFKS_in,nFKS_out,iFKS,iiFKS,nFKSprocessBorn(fks_configs)
logical firsttime
data firsttime /.true./
save nFKSprocessBorn
c
if (firsttime) then
firsttime=.false.
do iFKS=1,fks_configs
nFKSprocessBorn(iFKS)=0
if ( need_color_links_D(iFKS) .or.
& need_charge_links_D(iFKS) )then
nFKSprocessBorn(iFKS)=iFKS
endif
if (nFKSprocessBorn(iFKS).eq.0) then
c try to find the process that has the same j_fks but with i_fks a
c gluon
do iiFKS=1,fks_configs
if ( (need_color_links_D(iiFKS) .or.
& need_charge_links_D(iiFKS)) .and.
& fks_j_D(iFKS).eq.fks_j_D(iiFKS) ) then
nFKSprocessBorn(iFKS)=iiFKS
exit
endif
enddo
endif
c try to find the process that has the j_fks initial state if
c current j_fks is initial state (and similar for final state j_fks)
if (nFKSprocessBorn(iFKS).eq.0) then
do iiFKS=1,fks_configs
if ( need_color_links_D(iiFKS) .or.
& need_charge_links_D(iiFKS) ) then
if ( fks_j_D(iiFKS).le.nincoming .and.
& fks_j_D(iFKS).le.nincoming ) then
nFKSprocessBorn(iFKS)=iiFKS
exit
elseif ( fks_j_D(iiFKS).gt.nincoming .and.
& fks_j_D(iFKS).gt.nincoming ) then
nFKSprocessBorn(iFKS)=iiFKS
exit
endif
endif
enddo
endif
c If still not found, just pick any one that has a soft singularity
if (nFKSprocessBorn(iFKS).eq.0) then
do iiFKS=1,fks_configs
if ( need_color_links_D(iiFKS) .or.
& need_charge_links_D(iiFKS) ) then
nFKSprocessBorn(iFKS)=iiFKS
endif
enddo
endif
c if there are no soft singularities at all, just do something trivial
if (nFKSprocessBorn(iFKS).eq.0) then
nFKSprocessBorn(iFKS)=iFKS
endif
enddo
write (*,*) 'Total number of FKS directories is', fks_configs
write (*,*) 'For the Born we use nFKSprocesses:'
write (*,*) nFKSprocessBorn
endif
if (nFKSprocessBorn(nFKS_in).eq.0) then
write(*,*) 'Could not find the correct map to Born '/
& /'FKS configuration for the NLO FKS '/
& /'configuration', nFKS_in
stop 1
else
nFKS_out=nFKSprocessBorn(nFKS_in)
endif
return
end
subroutine update_vegas_x(xx,x)
use mint_module
implicit none
integer i
double precision xx(ndimmax),x(99),ran2
external ran2
integer nndim
common/tosigint/nndim
character*4 abrv
common /to_abrv/ abrv
do i=1,99
if (abrv.eq.'born'.or.abrv(1:2).eq.'vi') then
if(i.le.nndim-3)then
x(i)=xx(i)
elseif(i.le.nndim) then
x(i)=ran2() ! Choose them flat when not including real-emision
else
x(i)=0.d0
endif
else
if(i.le.nndim)then
x(i)=xx(i)
else
x(i)=0.d0
endif
endif
enddo
return
end
c
subroutine get_user_params(ncall,nitmax,irestart)
c**********************************************************************
c Routine to get user specified parameters for run
c**********************************************************************
use mint_module
implicit none
c
c Constants
c
include 'genps.inc'
include 'nexternal.inc'
include 'nFKSconfigs.inc'
include 'fks_info.inc'
include 'run.inc'
include 'orders.inc'
c
c Arguments
c
integer ncall,nitmax
c
c Local
c
integer i, j, kchan
double precision dconfig(maxchannels)
c
c Global
c
integer ini_fin_fks(maxchannels)
common /fks_channels/ini_fin_fks
integer isum_hel
logical multi_channel
common/to_matrix/isum_hel, multi_channel
integer use_cut
common /to_weight/use_cut
integer lbw(0:nexternal) !Use of B.W.
common /to_BW/ lbw
character*5 abrvinput
character*4 abrv
common /to_abrv/ abrv
logical nbody
common/cnbody/nbody
c
c To convert diagram number to configuration
c
include 'born_conf.inc'
c
c Vegas stuff
c
integer irestart,itmp
character * 70 idstring
logical savegrid
logical unwgt
double precision evtsgn
common /c_unwgt/evtsgn,unwgt
logical fillh
integer mc_hel,ihel
double precision volh
common/mc_int2/volh,mc_hel,ihel,fillh
integer random_offset_split
common /c_random_offset_split/ random_offset_split
logical done
character*140 buffer
c-----
c Begin Code
c-----
unwgt=.false.
open (unit=83,file='input_app.txt',status='old')
done=.false.
nchans=0
do while (.not. done)
read(83,'(a)',err=222,end=222) buffer
if (buffer(1:7).eq.'NPOINTS') then
buffer=buffer(10:100)
read(buffer,*) ncall
write (*,*) 'Number of phase-space points per iteration:',ncall
elseif(buffer(1:11).eq.'NITERATIONS') then
read(buffer(14:),*) nitmax
write (*,*) 'Maximum number of iterations is:',nitmax
elseif(buffer(1:8).eq.'ACCURACY') then
read(buffer(11:),*) accuracy
write (*,*) 'Desired accuracy is:',accuracy
elseif(buffer(1:10).eq.'ADAPT_GRID') then
read(buffer(13:),*) use_cut
write (*,*) 'Using adaptive grids:',use_cut
elseif(buffer(1:12).eq.'MULTICHANNEL') then
read(buffer(15:),*) i
if (i.eq.1) then
multi_channel=.true.
write (*,*) 'Using Multi-channel integration'
else
multi_channel=.false.
write (*,*) 'Not using Multi-channel integration'
endif
elseif(buffer(1:12).eq.'SUM_HELICITY') then
read(buffer(15:),*) i
if (nincoming.eq.1) then
write (*,*) 'Sum over helicities in the virtuals'/
$ /' for decay process'
mc_hel=0
elseif (i.eq.0) then
mc_hel=0
write (*,*) 'Explicitly summing over helicities'/
$ /' for the virtuals'
else
mc_hel=1
write(*,*) 'Do MC over helicities for the virtuals'
endif
isum_hel=0
elseif(buffer(1:6).eq.'NCHANS') then
read(buffer(9:),*) nchans
write (*,*) 'Number of channels to integrate together:'
$ ,nchans
if (nchans.gt.maxchannels) then
write (*,*) 'Too many integration channels to be '/
$ /'integrated together. Increase maxchannels',nchans
$ ,maxchannels
stop 1
endif
elseif(buffer(1:7).eq.'CHANNEL') then
if (nchans.le.0) then
write (*,*) '"NCHANS" missing in input files'/
$ /' (still zero)',nchans
stop
endif
read(buffer(10:),*) (dconfig(kchan),kchan=1,nchans)
do kchan=1,nchans
iconfigs(kchan) = int(dconfig(kchan))
if ( nint(dconfig(kchan)*10)-iconfigs(kchan)*10.eq.0 )
$ then
ini_fin_fks(kchan)=0
elseif ( nint(dconfig(kchan)*10)-iconfigs(kchan)*10.eq.1
$ ) then
ini_fin_fks(kchan)=1
elseif ( nint(dconfig(kchan)*10)-iconfigs(kchan)*10.eq.2
$ ) then
ini_fin_fks(kchan)=2
else
write (*,*) 'ERROR: invalid configuration number',dconfig
stop 1
endif
do i=1,mapconfig(0)
if (iconfigs(kchan).eq.mapconfig(i)) then
iconfigs(kchan)=i
exit
endif
enddo
enddo
write(*,*) 'Running Configuration Number(s): '
$ ,(iconfigs(kchan),kchan=1,nchans)
write(*,*) 'initial-or-final',(ini_fin_fks(kchan),kchan=1,nchans)
elseif(buffer(1:5).eq.'SPLIT') then
read(buffer(8:),*) random_offset_split
write (*,*) 'Splitting channel:',random_offset_split
elseif(buffer(1:8).eq.'WGT_MULT') then
read(buffer(11:),*) wgt_mult
write (*,*) 'Weight multiplier:',wgt_mult
elseif(buffer(1:8).eq.'RUN_MODE') then
read(buffer(11:),*) abrvinput
if(abrvinput(5:5).eq.'0')then
nbody=.true.
else
nbody=.false.
endif
abrv=abrvinput(1:4)
write (*,*) "doing the ",abrv," of this channel"
if(nbody)then
write (*,*) "integration Born/virtual with Sfunction=1"
else
write (*,*) "Normal integration (Sfunction != 1)"
endif
elseif(buffer(1:7).eq.'RESTART') then
read(buffer(10:),*) irestart
if (irestart.eq.0) then
write (*,*) 'RESTART: Fresh run'
elseif(irestart.eq.-1) then
write (*,*) 'RESTART: Use old grids, but refil plots'
elseif(irestart.eq.1) then
write (*,*) 'RESTART: continue with existing run'
else
write (*,*) 'RESTART:',irestart
endif
endif
cycle
222 done=.true.
enddo
close(83)
if (fks_configs.eq.1) then
if (pdg_type_d(1,fks_i_d(1)).eq.-21.and.abrv.ne.'born') then
C Two cases can occur
C 1) the process has been generated with the LOonly flav
C 2) the process has only virtual corrections, e.g. z > v v [QED]
C the two cases can be distinguished by looking at the values
C of AMP_SPLIT_SIZE, AMP_SPLIT_SIZE_BORN (if they are ==, it is 1))
if (amp_split_size.eq.amp_split_size_born) then
write (*,*) 'Process generated with [LOonly=QCD]. '/
$ /'Setting abrv to "born".'
abrv='born'
if (ickkw.eq.3) then
write (*,*) 'FxFx merging not possible with'/
$ /' [LOonly=QCD] processes'
stop 1
endif
else
write (*,*) 'Process only with virtual corrections'/
$ /'Setting abrv to "bovi".'
abrv='bovi'
endif
endif
endif
c
c Here I want to set up with B.W. we map and which we don't
c
lbw(0)=0
end
c
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