subroutine cprotonaxsec(a, e, xs)
subroutine cpbaraxsec(a, e, xs)
subroutine cxp2xaxsec(a, xsxp, xsxa)
subroutine cpiplusaxsec(a, e, xs)
subroutine ckminuspxsec(e, xs)
subroutine cpiminuspxsec(e, xs)
subroutine ckminusaxsec(a, e, xs)
subroutine cppxsec(e, xs)
subroutine ckplusaxsec(a, e, xs)
subroutine cpiminusaxsec(a, e, xs)
subroutine cpipluspxsec(e, xs)
subroutine cpbarpxsec(e, xs)
subroutine ckpluspxsec(e, xs)