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module uussbb_d252h2l1
! file: /home/thomasr/Work/samurai-processes/uussbb/helicity2/d252h2l1.f
! 90
! generator: haggies (1.1)
use precision, only: ki
use uussbb_config
use uussbb_model
use uussbb_kinematics
use uussbb_util, only: cond
use uussbb_color
use uussbb_abbrevh2l1
implicit none
private :: brack_1
private :: brack_2
private :: brack_3
private :: brack_4
private :: brack_5
complex(ki), parameter :: i_ = (0.0_ki, 1.0_ki)
private :: i_
contains
pure function brack_1(Q, mu2) result(brack)
implicit none
complex(ki), dimension(4), intent(in) :: Q
real(ki), intent(in) :: mu2
complex(ki) :: brack
brack = i_
end function brack_1
pure function brack_2(Q, mu2) result(brack)
implicit none
complex(ki), dimension(4), intent(in) :: Q
real(ki), intent(in) :: mu2
complex(ki), dimension(numcs) :: brack
real(ki) :: t1
t1 = NC*NC
brack = (TR*TR*TR*(((3.0_ki)/NC-NC)*c5+c1/(t1*NC)-(c6/t1+c4/t1+c2/t1)))
end function brack_2
pure function brack_3(Q, mu2) result(brack)
implicit none
complex(ki), dimension(4), intent(in) :: Q
real(ki), intent(in) :: mu2
complex(ki) :: brack
complex(ki) :: t1
complex(ki) :: t2
complex(ki) :: t3
complex(ki) :: t4
t1 = dotproduct(Q, spvak1k4)
t2 = dotproduct(Q, spvak5k1)
t3 = dotproduct(Q, Q)
t4 = dotproduct(Q, spvak5k4)
brack = ((4.0_ki)*(t1*abb252n13+t2*abb252n3+t3*abb252n7-(t3*t4*abb252n8+t1&
&*t2*abb252n8+abb252n6*dotproduct(Q, spvak6k3)+abb252n4*dotproduct(Q, spva&
&k2k3)+abb252n2*dotproduct(Q, spvak1k3)+abb252n1))+((2.0_ki)*(abb252n11+ab&
&b252n9*dotproduct(Q, spvak5k2)-(t4*abb252n8+t1*abb252n14))+abb252n10*dotp&
&roduct(Q, spvak3k4)+abb252n15*dotproduct(Q, spvak1k2)+abb252n5*dotproduct&
&(Q, spvak5k6))*mu2)
end function brack_3
pure function brack_4(Q, mu2) result(brack)
implicit none
complex(ki), dimension(4), intent(in) :: Q
real(ki), intent(in) :: mu2
complex(ki) :: brack
complex(ki) :: t1
complex(ki) :: t2
t1 = dotproduct(Q, spvak1k2)
t2 = dotproduct(Q, spvak3k4)
brack = (t1*t2*abb252n12+t1*t2*dotproduct(Q, spvak5k6))
end function brack_4
pure function brack_5(Q, mu2) result(brack)
implicit none
complex(ki), dimension(4), intent(in) :: Q
real(ki), intent(in) :: mu2
integer :: brack
brack = 0
end function brack_5
pure subroutine diagram252(Q, mu2, epspow, res)
implicit none
complex(ki), dimension(4), intent(in) :: Q
real(ki), intent(in) :: mu2
integer, intent(in) :: epspow
complex(ki), dimension(1:numcs), intent(inout) :: res
complex(ki), dimension(1:numcs) :: acc
complex(ki) :: prefactor
complex(ki), dimension(numcs) :: cf1
! res is set to zero in the calling routines,
! therefore we sum to whatever is there already.
acc = 0.0_ki
prefactor = brack_1(Q, mu2)
cf1 = brack_2(Q, mu2)
acc(:) = acc(:) + cf1(:) * ((cond(epspow.eq.0,brack_3,Q,mu2)+cond(epspow.e&
&q.1,brack_4,Q,mu2)))
! d252: if non-zero, there is only one color structure
acc(1) = acc(1) + (brack_5(Q, mu2))
res = res + prefactor * acc
end subroutine diagram252
end module uussbb_d252h2l1

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