You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
44 lines
1.5 KiB
44 lines
1.5 KiB
subroutine runY_00i1i2i3i4(k,l,i1,i2,i3,i4,Xtwiddle,Gtwiddle,
|
|
. Shat6,N0)
|
|
implicit none
|
|
C--- Expression for extension of Eq. 5.60c
|
|
C--- Calculates D00i1i2i3i4, requires D00li1i2i3
|
|
C--- Small terms of order Xtwiddle(0,k)*Diiiii,Xtwiddle(0,0)*Diiiiii
|
|
C--- Denominator Gtwiddle(k,l)
|
|
include 'lib/TensorReduction/Include/types.f'
|
|
include 'lib/TensorReduction/Include/pvDnames.f'
|
|
include 'lib/TensorReduction/Include/pvDv.f'
|
|
include 'lib/TensorReduction/recur/Include/Darraydef.f'
|
|
include 'lib/TensorReduction/recur/Include/Darrays.f'
|
|
integer ep,N0,k,l,i1,i2,i3,i4,np
|
|
parameter(np=3)
|
|
real(dp):: Xtwiddle(0:np,0:np),Gtwiddle(np,np)
|
|
complex(dp):: Shat6(np,z5max,-2:0)
|
|
|
|
if ( (i1.eq.l) .or. (i2.eq.l) .or. (i3.eq.l) .or. (i4.eq.l)
|
|
. .or. (i1.eq.0) .or. (i2.eq.0) .or. (i3.eq.0) .or. (i4.eq.0)) then
|
|
return
|
|
endif
|
|
|
|
do ep=-2,0
|
|
Dv(dzziiii(z4(i1,i2,i3,i4))+N0,ep)=
|
|
.(-2d0*Gtwiddle(k,i1)*Dv(dzziiii(z4(l,i2,i3,i4))+N0,ep)
|
|
. -2d0*Gtwiddle(k,i2)*Dv(dzziiii(z4(l,i1,i3,i4))+N0,ep)
|
|
. -2d0*Gtwiddle(k,i3)*Dv(dzziiii(z4(l,i1,i2,i4))+N0,ep)
|
|
. -2d0*Gtwiddle(k,i4)*Dv(dzziiii(z4(l,i1,i2,i3))+N0,ep)
|
|
. +Gtwiddle(k,1)*Shat6(1,z5(l,i1,i2,i3,i4),ep)
|
|
. +Gtwiddle(k,2)*Shat6(2,z5(l,i1,i2,i3,i4),ep)
|
|
. +Gtwiddle(k,3)*Shat6(3,z5(l,i1,i2,i3,i4),ep)
|
|
. +Xtwiddle(k,0)*Dv(diiiii(z5(l,i1,i2,i3,i4))+N0,ep)
|
|
. -Xtwiddle(0,0)*Dv(diiiiii(z6(k,l,i1,i2,i3,i4))+N0,ep))
|
|
. /(2d0*Gtwiddle(k,l))
|
|
|
|
enddo
|
|
|
|
|
|
return
|
|
end
|
|
|
|
|
|
|
|
|