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compute_tensors_wpm_real.f
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ccccccccccccccccccccccccccccccccccccccccccccccccc
c
c compute leptonic tensors for VBF pp->W+W-jj
c
subroutine compute_tensors_wpm_real(pin)
c fully leptonic decays
c
ccccccccccccccccccccccccccccccccccccccccccccccccc
c
implicit none
c
include 'nlegborn.h'
include 'pwhg_math.h'
c
integer nlegs
parameter (nlegs=nlegreal)
real*8 pin(0:3,nlegs)
c
c vbfnlo stuff:
include 'global.inc'
include 'coupl.inc'
include 'tensor_real.inc'
include 'higgs_graphs.h'
real*8 p(0:3,np), v(0:3,nv)
real*8 q12(0:4,3),q34(0:4,3),qww(0:3)
complex*16 zero
parameter (zero=(0d0,0d0))
double complex dotrc
external dotrc
c
c declare local variables
integer i,j,mu
integer ttype
c
cccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc
c
ttype = 3 ! tensors are real-type
do mu = 0,3
p(mu,1) = pin(mu,1)
p(mu,2) = pin(mu,2)
do i = 1,4
v(mu,i) = pin(mu,i+2)
enddo !i
p(mu,3) = pin(mu,7)
p(mu,4) = pin(mu,8)
p(mu,5) = pin(mu,9)
enddo ! mu
c compute invariants:
call calc_invariants(p,v,q12,q34,1)
c
c reset leptonic tensors:
call vtoww_real_reset
c compute leptonic tensors:
CALL IXXXXX(v(0,2),ZERO ,1,-1,wep_real) !e+
CALL OXXXXX(v(0,1),ZERO ,-1,1,wve_real) !ve
CALL OXXXXX(v(0,4),ZERO ,-1,1,wmu_real) !mu-
CALL IXXXXX(v(0,3),ZERO ,1,-1,wvm_real) !vm~
CALL JIOXXX(wep_real,wve_real,GWF ,WMASS,WWIDTH,wp_real) !W+
CALL JIOXXX(wvm_real,wmu_real,GWF ,WMASS,WWIDTH,wm_real) !W-
do mu = 0,3
qp_real(mu) = v(mu,1)+v(mu,2)
qm_real(mu) = v(mu,3)+v(mu,4)
qww(mu) = qp_real(mu) + qm_real(mu)
enddo
qp_real(4)=qp_real(0)**2-qp_real(1)**2-
& qp_real(2)**2-qp_real(3)**2
qm_real(4)=qm_real(0)**2-qm_real(1)**2-
& qm_real(2)**2-qm_real(3)**2
c determine "reduced" W+- polarization vectors
c wpp(mu) = wp(mu) - xp*qp(mu) and wmp(mu) = wm(mu) - xm*qm(mu)
xp_real = 0d0
xm_real = 0d0
do mu = 0,3
wpp_real(mu+1) = wp_real(mu+1) - xp_real*qp_real(mu)
wmp_real(mu+1) = wm_real(mu+1) - xm_real*qm_real(mu)
enddo
do mu = 5,6
wpp_real(mu) = wp_real(mu)
wmp_real(mu) = wm_real(mu)
enddo
c leptonic tensors
C for W+W-
if (.not.higgs_only) then
call atoww(v,aww_real,ttype)
call ztoww(v,zww_real,ttype)
endif
do j = 2,3
if (.not.higgs_only) then
call aatoww(q12(0,j),q34(0,j),v,aaww_real(0,0,j),ttype)
call aztoww(q12(0,j),q34(0,j),v,azww_real(0,0,j),ttype)
call aztoww(q34(0,j),q12(0,j),v,zaww_real(0,0,j),ttype)
endif
call zztoww(q12(0,j),q34(0,j),v,zzww_real(0,0,j),ttype)
call wwtoww(q12(0,j),q34(0,j),v,wwww6_real(0,0,j),ttype)!q12=W-
call wwtoww(q34(0,j),q12(0,j),v,wwww5_real(0,0,j),ttype)!q12=W+
if (.not.higgs_only) then
C for WV --> e+ nu_e
c NCw tensors for NC process (k=1...4), CCw for CC (k=5,6)
call WVtoWP(2,q34(0,j),v,NCwpa_real(0,0,1,j),
& NCwpz_real(0,0,1,j),ttype) !emit W- on upper
call WVtoWP(2,q12(0,j),v,NCwpa_real(0,0,2,j),
& NCwpz_real(0,0,2,j),ttype)!emit W- on lower
call WVtoWP(1,q34(0,j),v,CCwpa_real(0,0,1,j),
& CCwpz_real(0,0,1,j),ttype)!emit W- on upper
call WVtoWP(1,q12(0,j),v,CCwpa_real(0,0,2,j),
& CCwpz_real(0,0,2,j),ttype)!emit W- on lower
C for WV --> mu- nu_mu
call WVtoWM(2,q34(0,j),v,NCwma_real(0,0,1,j),
& NCwmz_real(0,0,1,j),ttype)!emit W+ on upper
call WVtoWM(2,q12(0,j),v,NCwma_real(0,0,2,j),
& NCwmz_real(0,0,2,j),ttype)!emit W+ on lower
call WVtoWM(1,q34(0,j),v,CCwma_real(0,0,1,j),
& CCwmz_real(0,0,1,j),ttype)!emit W+ on upper
call WVtoWM(1,q12(0,j),v,CCwma_real(0,0,2,j),
& CCwmz_real(0,0,2,j),ttype)!emit W+ on lower
endif ! H->WW only
enddo !j
return
end
ccccccccccccccccccccccccccccccccccccccccccccccccc
c
c compute tensors for VBF pp->W+W-jj with semi-leptonic decay
c
subroutine compute_tensors_wpm_real_slp(pin)
c
c "slp": (e+ve) is replaced with (ud~) in final state
c
ccccccccccccccccccccccccccccccccccccccccccccccccc
c
implicit none
c
include 'nlegborn.h'
include 'pwhg_math.h'
c
integer nlegs
parameter (nlegs=nlegreal)
real*8 pin(0:3,nlegs)
c
c vbfnlo stuff:
include 'global.inc'
include 'coupl.inc'
include 'tensor_real.inc'
include 'higgs_graphs.h'
real*8 p(0:3,np), v(0:3,nv)
real*8 q12(0:4,3),q34(0:4,3),qww(0:3)
complex*16 zero
parameter (zero=(0d0,0d0))
double complex dotrc
external dotrc
c
c declare local variables
integer i,j,mu
integer ttype
c
cccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc
c
ttype = 3 ! tensors are real-emission type
do mu = 0,3
p(mu,1) = pin(mu,1)
p(mu,2) = pin(mu,2)
do i = 1,4
v(mu,i) = pin(mu,i+2)
enddo !i
p(mu,3) = pin(mu,7)
p(mu,4) = pin(mu,8)
p(mu,5) = pin(mu,9)
enddo ! mu
c compute invariants:
call calc_invariants(p,v,q12,q34,1)
c
c reset (semi-)leptonic tensors:
call vtoww_real_reset
c compute (semi-)leptonic tensors:
CALL IXXXXX(v(0,2),ZERO ,1,-1,wve_real) !b~
CALL OXXXXX(v(0,1),ZERO ,-1,1,wep_real) !t
CALL OXXXXX(v(0,4),ZERO ,-1,1,wmu_real) !mu-
CALL IXXXXX(v(0,3),ZERO ,1,-1,wvm_real) !vm~
CALL JIOXXX(wve_real,wep_real,GWF ,WMASS,WWIDTH,wp_real) !W+
CALL JIOXXX(wvm_real,wmu_real,GWF ,WMASS,WWIDTH,wm_real) !W-
do mu = 0,3
qp_real(mu) = v(mu,1)+v(mu,2)
qm_real(mu) = v(mu,3)+v(mu,4)
qww(mu) = qp_real(mu) + qm_real(mu)
enddo
qp_real(4)=qp_real(0)**2-qp_real(1)**2-
& qp_real(2)**2-qp_real(3)**2
qm_real(4)=qm_real(0)**2-qm_real(1)**2-
& qm_real(2)**2-qm_real(3)**2
c determine "reduced" W+- polarization vectors
c wpp(mu) = wp(mu) - xp*qp(mu) and wmp(mu) = wm(mu) - xm*qm(mu)
xp_real = 0d0
xm_real = 0d0
do mu = 0,3
wpp_real(mu+1) = wp_real(mu+1) - xp_real*qp_real(mu)
wmp_real(mu+1) = wm_real(mu+1) - xm_real*qm_real(mu)
enddo
do mu = 5,6
wpp_real(mu) = wp_real(mu)
wmp_real(mu) = wm_real(mu)
enddo
c (semi-)leptonic tensors
C for W+W-
if (.not.higgs_only) then
call atoww_slp(v,aww_real,ttype)
call ztoww_slp(v,zww_real,ttype)
endif
do j = 2,3
if (.not.higgs_only) then
call aatoww_slp(q12(0,j),q34(0,j),v,aaww_real(0,0,j),ttype)
call aztoww_slp(q12(0,j),q34(0,j),v,azww_real(0,0,j),ttype)
call aztoww_slp(q34(0,j),q12(0,j),v,zaww_real(0,0,j),ttype)
endif
call zztoww_slp(q12(0,j),q34(0,j),v,zzww_real(0,0,j),ttype)
call wwtoww_slp(q12(0,j),q34(0,j),v,wwww6_real(0,0,j),ttype)!q12=W-
call wwtoww_slp(q34(0,j),q12(0,j),v,wwww5_real(0,0,j),ttype)!q12=W+
if (.not.higgs_only) then
cC for WV --> tb
cc NCw tensors for NC process (k=1...4), CCw for CC (k=5,6)
call WVtoWP_slp(2,q34(0,j),v,NCwpa_real(0,0,1,j),
& NCwpz_real(0,0,1,j),ttype) !emit W- on upper
call WVtoWP_slp(2,q12(0,j),v,NCwpa_real(0,0,2,j),
& NCwpz_real(0,0,2,j),ttype) !emit W- on lower
call WVtoWP_slp(1,q34(0,j),v,CCwpa_real(0,0,1,j),
& CCwpz_real(0,0,1,j),ttype) !emit W- on upper
call WVtoWP_slp(1,q12(0,j),v,CCwpa_real(0,0,2,j),
& CCwpz_real(0,0,2,j),ttype) !emit W- on lower
C for WV --> mu- nu_mu
call WVtoWM(2,q34(0,j),v,NCwma_real(0,0,1,j),
& NCwmz_real(0,0,1,j),ttype) !emit W+ on upper
call WVtoWM(2,q12(0,j),v,NCwma_real(0,0,2,j),
& NCwmz_real(0,0,2,j),ttype) !emit W+ on lower
call WVtoWM(1,q34(0,j),v,CCwma_real(0,0,1,j),
& CCwmz_real(0,0,1,j),ttype) !emit W+ on upper
call WVtoWM(1,q12(0,j),v,CCwma_real(0,0,2,j),
& CCwmz_real(0,0,2,j),ttype) !emit W+ on lower
endif ! H->WW only
enddo !j
return
end
ccccccccccccccccccccccccccccccccccccccccccccccccc
c
c compute tensors for VBF pp->W+W-jj with semi-leptonic decay
c
subroutine compute_tensors_wpm_real_slm(pin)
c
c "slm": (vm~ mu) is replaced with (u~ d) in final state
c
ccccccccccccccccccccccccccccccccccccccccccccccccc
c
implicit none
c
include 'nlegborn.h'
include 'pwhg_math.h'
c
integer nlegs
parameter (nlegs=nlegreal)
real*8 pin(0:3,nlegs)
c
c vbfnlo stuff:
include 'global.inc'
include 'coupl.inc'
include 'tensor_real.inc'
include 'higgs_graphs.h'
real*8 p(0:3,np), v(0:3,nv)
real*8 q12(0:4,3),q34(0:4,3),qww(0:3)
complex*16 zero
parameter (zero=(0d0,0d0))
double complex dotrc
external dotrc
c
c declare local variables
integer i,j,mu
integer ttype
c
cccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc
c
ttype = 3 ! tensors are real.emission type
do mu = 0,3
p(mu,1) = pin(mu,1)
p(mu,2) = pin(mu,2)
do i = 1,4
v(mu,i) = pin(mu,i+2)
enddo !i
p(mu,3) = pin(mu,7)
p(mu,4) = pin(mu,8)
p(mu,5) = pin(mu,9)
enddo ! mu
c compute invariants:
call calc_invariants(p,v,q12,q34,1)
c
c reset (semi-)leptonic tensors:
call vtoww_real_reset
c compute (semi-)leptonic tensors:
CALL IXXXXX(v(0,2),ZERO ,1,-1,wep_real)!e+
CALL OXXXXX(v(0,1),ZERO ,-1,1,wve_real)!ve
CALL OXXXXX(v(0,4),ZERO ,-1,1,wmu_real)!b
CALL IXXXXX(v(0,3),ZERO ,1,-1,wvm_real)!t~
CALL JIOXXX(wep_real,wve_real,GWF ,WMASS,WWIDTH,wp_real)!W+
CALL JIOXXX(wvm_real,wmu_real,GWF ,WMASS,WWIDTH,wm_real)!W-
do mu = 0,3
qp_real(mu) = v(mu,1)+v(mu,2)
qm_real(mu) = v(mu,3)+v(mu,4)
qww(mu) = qp_real(mu) + qm_real(mu)
enddo
qp_real(4)=qp_real(0)**2-qp_real(1)**2-
& qp_real(2)**2-qp_real(3)**2
qm_real(4)=qm_real(0)**2-qm_real(1)**2-
& qm_real(2)**2-qm_real(3)**2
c determine "reduced" W+- polarization vectors
c wpp(mu) = wp(mu) - xp*qp(mu) and wmp(mu) = wm(mu) - xm*qm(mu)
xp_real = 0d0
xm_real = 0d0
do mu = 0,3
wpp_real(mu+1) = wp_real(mu+1) - xp_real*qp_real(mu)
wmp_real(mu+1) = wm_real(mu+1) - xm_real*qm_real(mu)
enddo
do mu = 5,6
wpp_real(mu) = wp_real(mu)
wmp_real(mu) = wm_real(mu)
enddo
c (semi-)leptonic tensors
C for W+W-
if (.not.higgs_only) then
call atoww_slm(v,aww_real,ttype)
call ztoww_slm(v,zww_real,ttype)
endif
do j = 2,3
if (.not.higgs_only) then
call aatoww_slm(q12(0,j),q34(0,j),v,aaww_real(0,0,j),ttype)
call aztoww_slm(q12(0,j),q34(0,j),v,azww_real(0,0,j),ttype)
call aztoww_slm(q34(0,j),q12(0,j),v,zaww_real(0,0,j),ttype)
endif
call zztoww_slm(q12(0,j),q34(0,j),v,zzww_real(0,0,j),ttype)
call wwtoww_slm(q12(0,j),q34(0,j),v,wwww6_real(0,0,j),ttype)!q12=W-
call wwtoww_slm(q34(0,j),q12(0,j),v,wwww5_real(0,0,j),ttype)!q12=W+
if (.not.higgs_only) then
cC for WV --> tb
cc NCw tensors for NC process (k=1...4), CCw for CC (k=5,6)
call WVtoWP(2,q34(0,j),v,NCwpa_real(0,0,1,j),
& NCwpz_real(0,0,1,j),ttype) !emit W- on upper
call WVtoWP(2,q12(0,j),v,NCwpa_real(0,0,2,j),
& NCwpz_real(0,0,2,j),ttype) !emit W- on lower
call WVtoWP(1,q34(0,j),v,CCwpa_real(0,0,1,j),
& CCwpz_real(0,0,1,j),ttype) !emit W- on upper
call WVtoWP(1,q12(0,j),v,CCwpa_real(0,0,2,j),
& CCwpz_real(0,0,2,j),ttype) !emit W- on lower
C for WV --> mu- nu_mu
call WVtoWM_slm(2,q34(0,j),v,NCwma_real(0,0,1,j),
& NCwmz_real(0,0,1,j),ttype) !emit W+ on upper
call WVtoWM_slm(2,q12(0,j),v,NCwma_real(0,0,2,j),
& NCwmz_real(0,0,2,j),ttype) !emit W+ on lower
call WVtoWM_slm(1,q34(0,j),v,CCwma_real(0,0,1,j),
& CCwmz_real(0,0,1,j),ttype) !emit W+ on upper
call WVtoWM_slm(1,q12(0,j),v,CCwma_real(0,0,2,j),
& CCwmz_real(0,0,2,j),ttype) !emit W+ on lower
endif ! H->WW only
enddo !j
return
end