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	diff --git a/include/HEJ/jets.hh b/include/HEJ/jets.hh
	index 178a631..93a5381 100644
	--- a/include/HEJ/jets.hh
	+++ b/include/HEJ/jets.hh
	@@ -1,339 +1,341 @@
	/**
	* \authors The HEJ collaboration (see AUTHORS for details)
	* \date 2019
	* \copyright GPLv2 or later
	*/
	/** \file
	* \brief Functions computing the square of current contractions in pure jets.
	*
	* This file contains all the necessary functions to compute the
	* current contractions for all valid pure jet HEJ processes, which
	* so far is FKL and unordered processes. It will also contain some
	* pure jet ME components used in other process ME calculations
	*
	* @TODO add a namespace
	*/
	#pragma once

	#include <complex>
	#include <ostream>

	#include <CLHEP/Vector/LorentzVector.h>

	typedef std::complex<double> COM;
	typedef COM current[4];
	typedef CLHEP::HepLorentzVector HLV;

	//! Square of qQ->qQ Pure Jets Scattering Current
	/**
	* @param p1out Momentum of final state quark
	* @param p1in Momentum of initial state quark
	* @param p2out Momentum of final state quark
	* @param p2in Momentum of intial state quark
	* @returns Square of the current contractions for qQ->qQ Scattering
	*/
	double ME_qQ (HLV p1out, HLV p1in, HLV p2out, HLV p2in);

	//! Square of qQbar->qQbar Pure Jets Scattering Current
	/**
	* @param p1out Momentum of final state quark
	* @param p1in Momentum of initial state quark
	* @param p2out Momentum of final state anti-quark
	* @param p2in Momentum of intial state anti-quark
	* @returns Square of the current contractions for qQbar->qQbar Scattering
	*
	* @note this can be used for qbarQ->qbarQ Scattering by inputting arguments
	* appropriately.
	*/
	double ME_qQbar (HLV p1out, HLV p1in, HLV p2out, HLV p2in);

	//! Square of qbarQbar->qbarQbar Pure Jets Scattering Current
	/**
	* @param p1out Momentum of final state anti-quark
	* @param p1in Momentum of initial state anti-quark
	* @param p2out Momentum of final state anti-quark
	* @param p2in Momentum of intial state anti-quark
	* @returns Square of the current contractions for qbarQbar->qbarQbar Scattering
	*/
	double ME_qbarQbar (HLV p1out, HLV p1in, HLV p2out, HLV p2in);

	//! Square of qg->qg Pure Jets Scattering Current
	/**
	* @param p1out Momentum of final state quark
	* @param p1in Momentum of initial state quark
	* @param p2out Momentum of final state gluon
	* @param p2in Momentum of intial state gluon
	* @returns Square of the current contractions for qg->qg Scattering
	*
	* @note this can be used for gq->gq Scattering by inputting arguments
	* appropriately.
	*/
	double ME_qg (HLV p1out, HLV p1in, HLV p2out, HLV p2in);

	//! Square of qbarg->qbarg Pure Jets Scattering Current
	/**
	* @param p1out Momentum of final state anti-quark
	* @param p1in Momentum of initial state anti-quark
	* @param p2out Momentum of final state gluon
	* @param p2in Momentum of intial state gluon
	* @returns Square of the current contractions for qbarg->qbarg Scattering
	*
	* @note this can be used for gqbar->gqbar Scattering by inputting arguments
	* appropriately.
	*/
	double ME_qbarg (HLV p1out, HLV p1in, HLV p2out, HLV p2in);

	//! Square of gg->gg Pure Jets Scattering Current
	/**
	* @param p1out Momentum of final state gluon
	* @param p1in Momentum of initial state gluon
	* @param p2out Momentum of final state gluon
	* @param p2in Momentum of intial state gluon
	* @returns Square of the current contractions for gg->gg Scattering
	*/
	double ME_gg (HLV p1out, HLV p1in, HLV p2out, HLV p2in);

	//Unordered Backwards contributions:
	//! Square of qQ->qQ Pure Jets Scattering Current
	/**
	* @param p1out Momentum of final state quark
	* @param p1in Momentum of initial state quark
	* @param pg Momentum of unordered gluon
	* @param p2out Momentum of final state quark
	* @param p2in Momentum of intial state quark
	* @returns Square of the current contractions for qQ->qQ Scattering
	*/
	double ME_unob_qQ (HLV pg, HLV p1out, HLV p1in, HLV p2out, HLV p2in);

	//! Square of qbarQ->qbarQ Pure Jets Unordered backwards Scattering Current
	/**
	* @param p1out Momentum of final state anti-quark
	* @param p1in Momentum of initial state anti-quark
	* @param pg Momentum of unordered gluon
	* @param p2out Momentum of final state quark
	* @param p2in Momentum of intial state quark
	* @returns Square of the current contractions for qbarQ->qbarQ Scattering
	*
	* @note this can be used for unof contributions by inputting
	* arguments appropriately.
	*/
	double ME_unob_qbarQ (HLV pg, HLV p1out, HLV p1in, HLV p2out, HLV p2in);

	//! Square of qQbar->qQbar Pure Jets Unordered backwards Scattering Current
	/**
	* @param p1out Momentum of final state quark
	* @param p1in Momentum of initial state quark
	* @param pg Momentum of unordered gluon
	* @param p2out Momentum of final state anti-quark
	* @param p2in Momentum of intial state anti-quark
	* @returns Square of the current contractions for qQbar->qQbar Scattering
	*
	* @note this can be used for unof contributions by inputting
	* arguments appropriately.
	*/
	double ME_unob_qQbar (HLV pg, HLV p1out, HLV p1in, HLV p2out, HLV p2in);

	//! Square of qbarQbar->qbarQbar Pure Jets Unordered backwards Scattering Current
	/**
	* @param p1out Momentum of final state anti-quark
	* @param p1in Momentum of initial state anti-quark
	* @param pg Momentum of unordered gluon
	* @param p2out Momentum of final state anti-quark
	* @param p2in Momentum of intial state anti-quark
	* @returns Square of the current contractions for qbarQbar->qbarQbar Scattering
	*
	* @note this can be used for unof contributions by inputting
	* arguments appropriately.
	*/
	double ME_unob_qbarQbar (HLV pg, HLV p1out, HLV p1in, HLV p2out, HLV p2in);

	//! Square of qg->qg Pure Jets Unordered backwards Scattering Current
	/**
	* @param p1out Momentum of final state gluon
	* @param p1in Momentum of initial state gluon
	* @param pg Momentum of unordered gluon
	* @param p2out Momentum of final state quark
	* @param p2in Momentum of intial state quark
	* @returns Square of the current contractions for qg->qg Scattering
	*
	* @note this can be used for unof contributions by inputting
	* arguments appropriately.
	*/
	double ME_unob_qg (HLV pg, HLV p1out, HLV p1in, HLV p2out, HLV p2in);

	//! Square of qbarg->qbarg Pure Jets Unordered backwards Scattering Current
	/**
	* @param p1out Momentum of final state gluon
	* @param p1in Momentum of initial state gluon
	* @param pg Momentum of unordered gluon
	* @param p2out Momentum of final state anti-quark
	* @param p2in Momentum of intial state anti-quark
	* @returns Square of the current contractions for qbarg->qbarg Scattering
	*
	* @note this can be used for unof contributions by inputting
	* arguments appropriately.
	*/
	double ME_unob_qbarg (HLV pg, HLV p1out, HLV p1in, HLV p2out, HLV p2in);

	/** \class CCurrent jets.hh "include/HEJ/jets.hh"
	* \brief This is the a new class structure for currents.
	*/
	class CCurrent
	{
	public:
	CCurrent(COM sc0, COM sc1, COM sc2, COM sc3)
	:c0(sc0),c1(sc1),c2(sc2),c3(sc3)
	{};
	CCurrent(const HLV p)
	{
	c0=p.e();
	c1=p.px();
	c2=p.py();
	c3=p.pz();
	};
	CCurrent()
	{};
	CCurrent operator+(const CCurrent& other);
	CCurrent operator-(const CCurrent& other);
	CCurrent operator*(const double x);
	CCurrent operator*(const COM x);
	CCurrent operator/(const double x);
	CCurrent operator/(const COM x);

	friend std::ostream& operator<<(std::ostream& os, const CCurrent& cur);
	COM dot(HLV p1);
	COM dot(CCurrent p1);
	COM c0,c1,c2,c3;
	};

	/* std::ostream& operator <<(std::ostream& os, const CCurrent& cur); */
	CCurrent operator * ( double x, CCurrent& m);
	CCurrent operator * ( COM x, CCurrent& m);
	CCurrent operator / ( double x, CCurrent& m);
	CCurrent operator / ( COM x, CCurrent& m);

	//! Current <incoming state \| mu \| outgoing state>
	/**
	* This is a wrapper function around \see joi() note helicity flip to
	* give same answer.
	*/
	void jio(HLV pin, bool helin, HLV pout, bool helout, current &cur);

	//! Current <outgoing state \| mu \| outgoing state>
	/**
	* @param pi bra state momentum
	* @param heli helicity of pi
	* @param pj ket state momentum
	* @param helj helicity of pj. (must be same as heli)
	* @param cur reference to current which is saved.
	*
	* This function is for building <i (out)\| mu \|j (out)> currents. It
	* must be called with pi as the bra, and pj as the ket.
	*
	* @TODO Remove heli/helj and just have helicity of current as argument.
	*/
	void joo(HLV pi, bool heli, HLV pj, bool helj, current &cur);

	//! Current <outgoing state \| mu \| incoming state>
	/**
	* @param pout bra state momentum
	* @param helout helicity of pout
	* @param pin ket state momentum
	* @param helin helicity of pin. (must be same as helout)
	* @param cur reference to current which is saved.
	*
	* This function is for building <out\| mu \|in> currents. It must be
	* called with pout as the bra, and pin as the ket. jio calls this
	* with flipped helicity
	*
	* @TODO Remove helout/helin and just have helicity of current as argument.
	*/
	void joi(HLV pout, bool helout, HLV pin, bool helin, current &cur);

	//! Current <outgoing state \| mu \| incoming state>
	/**
	* This is a wrapper function around the void function of the same name. \see joi
	+ *
	+ * @TODO This is never used
	*/
	CCurrent joi (HLV pout, bool helout, HLV pin, bool helin);

	//! Current <incoming state \| mu \| outgoing state>
	/**
	* This is a wrapper function around the void function of the same name. \see jio
	*/
	CCurrent jio (HLV pout, bool helout, HLV pin, bool helin);

	//! Current <outgoing state \| mu \| outgoing state>
	/**
	* This is a wrapper function around the void function of the same name. \see joo
	*/
	CCurrent joo (HLV pout, bool helout, HLV pin, bool helin);

	inline COM cdot(const current & j1, const current & j2)
	{
	return j1[0]j2[0]-j1[1]j2[1]-j1[2]j2[2]-j1[3]j2[3];
	}

	inline COM cdot(const HLV & p, const current & j1) {
	return j1[0]p.e()-j1[1]p.x()-j1[2]p.y()-j1[3]p.z();
	}

	inline void cmult(const COM & factor, const current & j1, current &cur)
	{
	cur[0]=factor*j1[0];
	cur[1]=factor*j1[1];
	cur[2]=factor*j1[2];
	cur[3]=factor*j1[3];
	}

	// WHY!?!
	inline void cadd(const current & j1, const current & j2, const current & j3,
	const current & j4, const current & j5, current &sum)
	{
	sum[0]=j1[0]+j2[0]+j3[0]+j4[0]+j5[0];
	sum[1]=j1[1]+j2[1]+j3[1]+j4[1]+j5[1];
	sum[2]=j1[2]+j2[2]+j3[2]+j4[2]+j5[2];
	sum[3]=j1[3]+j2[3]+j3[3]+j4[3]+j5[3];
	}

	inline void cadd(const current & j1, const current & j2, const current & j3,
	const current & j4, current &sum) {
	sum[0] = j1[0] + j2[0] + j3[0] + j4[0];
	sum[1] = j1[1] + j2[1] + j3[1] + j4[1];
	sum[2] = j1[2] + j2[2] + j3[2] + j4[2];
	sum[3] = j1[3] + j2[3] + j3[3] + j4[3];
	}

	inline void cadd(const current & j1, const current & j2, const current & j3,
	current &sum)
	{
	sum[0]=j1[0]+j2[0]+j3[0];
	sum[1]=j1[1]+j2[1]+j3[1];
	sum[2]=j1[2]+j2[2]+j3[2];
	sum[3]=j1[3]+j2[3]+j3[3];
	}

	inline void cadd(const current & j1, const current & j2, current &sum)
	{
	sum[0]=j1[0]+j2[0];
	sum[1]=j1[1]+j2[1];
	sum[2]=j1[2]+j2[2];
	sum[3]=j1[3]+j2[3];
	}

	inline double abs2(const COM & a)
	{
	return (a*conj(a)).real();
	}

	inline double vabs2(const CCurrent & cur)
	{
	return abs2(cur.c0)-abs2(cur.c1)-abs2(cur.c2)-abs2(cur.c3);
	}

	inline double vre(const CCurrent & a, const CCurrent & b)
	{
	return real(a.c0conj(b.c0)-a.c1conj(b.c1)-a.c2conj(b.c2)-a.c3conj(b.c3));
	}
	//! @TODO These are not currents and should be moved elsewhere.
	double K_g(double p1minus, double paminus);
	double K_g(HLV const & pout, HLV const & pin);
	diff --git a/src/Hjets.cc b/src/Hjets.cc
	index 0f8912b..e2fa700 100644
	--- a/src/Hjets.cc
	+++ b/src/Hjets.cc
	@@ -1,1085 +1,1084 @@
	/**
	* \authors The HEJ collaboration (see AUTHORS for details)
	* \date 2019
	* \copyright GPLv2 or later
	*/
	#include "HEJ/jets.hh"
	#include "HEJ/Hjets.hh"

	#include <assert.h>
	#include <limits>

	#include "HEJ/Constants.hh"
	#ifdef HEJ_BUILD_WITH_QCDLOOP
	#include "qcdloop/qcdloop.h"
	#endif

	const COM looprwfactor = (COM(0.,1.)M_PIM_PI)/pow((2.*M_PI),4);
	constexpr double infinity = std::numeric_limits<double>::infinity();

	namespace {
	// Loop integrals
	#ifdef HEJ_BUILD_WITH_QCDLOOP

	COM B0DD(HLV q, double mq)
	{
	static std::vector<std::complex<double>> result(3);
	static auto ql_B0 = [](){
	ql::Bubble<std::complex<double>,double,double> ql_B0;
	ql_B0.setCacheSize(100);
	return ql_B0;
	}();
	static std::vector<double> masses(2);
	static std::vector<double> momenta(1);
	for(auto & m: masses) m = mq*mq;
	momenta.front() = q.m2();
	ql_B0.integral(result, 1, masses, momenta);
	return result[0];
	}
	COM C0DD(HLV q1, HLV q2, double mq)
	{
	static std::vector<std::complex<double>> result(3);
	static auto ql_C0 = [](){
	ql::Triangle<std::complex<double>,double,double> ql_C0;
	ql_C0.setCacheSize(100);
	return ql_C0;
	}();
	static std::vector<double> masses(3);
	static std::vector<double> momenta(3);
	for(auto & m: masses) m = mq*mq;
	momenta[0] = q1.m2();
	momenta[1] = q2.m2();
	momenta[2] = (q1+q2).m2();
	ql_C0.integral(result, 1, masses, momenta);
	return result[0];
	}
	COM D0DD(HLV q1,HLV q2, HLV q3, double mq)
	{
	static std::vector<std::complex<double>> result(3);
	static auto ql_D0 = [](){
	ql::Box<std::complex<double>,double,double> ql_D0;
	ql_D0.setCacheSize(100);
	return ql_D0;
	}();
	static std::vector<double> masses(4);
	static std::vector<double> momenta(6);
	for(auto & m: masses) m = mq*mq;
	momenta[0] = q1.m2();
	momenta[1] = q2.m2();
	momenta[2] = q3.m2();
	momenta[3] = (q1+q2+q3).m2();
	momenta[4] = (q1+q2).m2();
	momenta[5] = (q2+q3).m2();
	ql_D0.integral(result, 1, masses, momenta);
	return result[0];
	}

	COM A1(HLV q1, HLV q2, double mt)
	// As given in Eq. (B.2) of VDD
	{
	double q12,q22,Q2;
	HLV Q;
	double Delta3,mt2;
	COM ans(COM(0.,0.));

	q12=q1.m2();
	q22=q2.m2();
	Q=-q1-q2; // Define all momenta ingoing as in appendix of VDD
	Q2=Q.m2();

	Delta3=q12q12+q22q22+Q2Q2-2q12q22-2q12Q2-2q22*Q2;

	assert(mt > 0.);

	mt2=mt*mt;

	ans=looprwfactorCOM(0,-1)C0DD(q1,q2,mt)( 4.mt2/Delta3*(Q2-q12-q22)
	-1.-4.q12q22/Delta3-12.q12q22Q2/Delta3/Delta3(q12+q22-Q2) )
	- looprwfactorCOM(0,-1)( B0DD(q2,mt)-B0DD(Q,mt) )
	* ( 2.q22/Delta3+12.q12q22/Delta3/Delta3(q22-q12+Q2) )
	- looprwfactorCOM(0,-1)( B0DD(q1,mt)-B0DD(Q,mt) )
	* ( 2.q12/Delta3+12.q12q22/Delta3/Delta3(q12-q22+Q2) )
	- 2./Delta3/16/M_PI/M_PI*(q12+q22-Q2);

	return ans;

	}

	COM A2(HLV q1, HLV q2, double mt)
	// As given in Eq. (B.2) of VDD, but with high energy limit
	// of invariants taken.
	{
	double q12,q22,Q2;
	HLV Q;
	double Delta3,mt2;
	COM ans(COM(0.,0.));

	assert(mt > 0.);

	mt2=mt*mt;

	q12=q1.m2();
	q22=q2.m2();
	Q=-q1-q2; // Define all momenta ingoing as in appendix of VDD
	Q2=Q.m2();

	Delta3=q12q12+q22q22+Q2Q2-2q12q22-2q12Q2-2q22*Q2;
	ans=looprwfactorCOM(0,-1)C0DD(q1,q2,mt)( 2.mt2+1./2.*(q12+q22-Q2)
	+2.q12q22*Q2/Delta3 )
	+looprwfactorCOM(0,-1)(B0DD(q2,mt)-B0DD(Q,mt))
	q22(q22-q12-Q2)/Delta3
	+looprwfactorCOM(0,-1)(B0DD(q1,mt)-B0DD(Q,mt))
	q12(q12-q22-Q2)/Delta3+1./16/M_PI/M_PI;

	return ans;
	}

	#else // no QCDloop

	COM A1(HLV, HLV, double) {
	throw std::logic_error{"A1 called without QCDloop support"};
	}

	COM A2(HLV, HLV, double) {
	throw std::logic_error{"A2 called without QCDloop support"};
	}

	#endif

	void to_current(const HLV & q, current & ret){
	ret[0]=q.e();
	ret[1]=q.x();
	ret[2]=q.y();
	ret[3]=q.z();
	}

	/**
	* @brief Higgs vertex contracted with current @param C1 and @param C2
	*/
	COM cHdot(const current & C1, const current & C2, const current & q1,
	const current & q2, double mt, bool incBot, double mb, double vev)
	{
	if (mt == infinity) {
	return (cdot(C1,C2)cdot(q1,q2)-cdot(C1,q2)cdot(C2,q1))/(3M_PIvev);
	}
	else {
	HLV vq1,vq2;
	vq1.set(q1[1].real(),q1[2].real(),q1[3].real(),q1[0].real());
	vq2.set(q2[1].real(),q2[2].real(),q2[3].real(),q2[0].real());
	// first minus sign obtained because of q1-difference to VDD
	// Factor is because 4 mt^2 g^2/vev A1 -> 16 pi mt^2/vev alphas,
	if(!(incBot))
	return 16.M_PImtmt/vev(-cdot(C1,q2)cdot(C2,q1)A1(-vq1,vq2,mt)
	-cdot(C1,C2)*A2(-vq1,vq2,mt));
	else
	return 16.M_PImtmt/vev(-cdot(C1,q2)cdot(C2,q1)A1(-vq1,vq2,mt)
	-cdot(C1,C2)*A2(-vq1,vq2,mt))
	+ 16.M_PImbmb/vev(-cdot(C1,q2)cdot(C2,q1)A1(-vq1,vq2,mb)
	-cdot(C1,C2)*A2(-vq1,vq2,mb));
	}
	}
	//@{
	/**
	* @brief Higgs+Jets FKL Contributions, function to handle all incoming types.
	* @param p1out Outgoing Particle 1. (W emission)
	* @param p1in Incoming Particle 1. (W emission)
	* @param p2out Outgoing Particle 2 (Quark, unordered emission this side.)
	* @param p2in Incoming Particle 2 (Quark, unordered emission this side.)
	* @param q1 t-channel momenta into higgs vertex
	* @param q2 t-channel momenta out of higgs vertex
	* @param mt top mass (inf or value)
	* @param incBot Bool, to include bottom mass (true) or not (false)?
	* @param mb bottom mass (value)
	* @param pg Unordered Gluon momenta
	- * @param aqlineb Bool. Is Backwards quark line an anti-quark line?
	- * @param aqlinef Bool. Is Forwards quark line an anti-quark line?
	*
	* Calculates j^\mu H j_\mu. FKL with higgs vertex somewhere in the FKL chain.
	* Handles all possible incoming states.
	*/
	- double j_h_j(HLV p1out, HLV p1in, HLV p2out, HLV p2in,
	- HLV q1, HLV q2, double mt, bool incBot,
	- double mb, double vev, bool aqlineb, bool aqlinef){
	+ double j_h_j(HLV const & p1out, HLV const & p1in, HLV const & p2out,
	+ HLV const & p2in, HLV const & q1, HLV const & q2,
	+ double mt, bool incBot, double mb, double vev
	+ ){
	current j1p,j1m,j2p,j2m, q1v, q2v;

	// Note need to flip helicities in anti-quark case.
	- joi(p1out,!aqlineb, p1in,!aqlineb, j1p);
	- joi(p1out, aqlineb, p1in, aqlineb, j1m);
	- joi(p2out,!aqlinef, p2in,!aqlinef, j2p);
	- joi(p2out, aqlinef, p2in, aqlinef, j2m);
	+ joi(p1out, false, p1in, false, j1p);
	+ joi(p1out, true, p1in, true, j1m);
	+ joi(p2out, false, p2in, false, j2p);
	+ joi(p2out, true, p2in, true, j2m);

	to_current(q1, q1v);
	to_current(q2, q2v);

	COM Mmp=cHdot(j1m,j2p,q1v,q2v,mt, incBot, mb, vev);
	COM Mmm=cHdot(j1m,j2m,q1v,q2v,mt, incBot, mb, vev);
	COM Mpp=cHdot(j1p,j2p,q1v,q2v,mt, incBot, mb, vev);
	COM Mpm=cHdot(j1p,j2m,q1v,q2v,mt, incBot, mb, vev);

	// average over helicities
	const double sst=(abs2(Mmp)+abs2(Mmm)+abs2(Mpp)+abs2(Mpm))/4.;

	return sst/((p1in-p1out).m2()(p2in-p2out).m2()q1.m2()*q2.m2());
	}
	} // namespace anonymous

	double ME_H_qQ(HLV p1out, HLV p1in, HLV p2out, HLV p2in, HLV q1, HLV q2,
	double mt, bool incBot, double mb, double vev){
	- return j_h_j(p1out, p1in, p2out, p2in, q1, q2, mt, incBot, mb, vev, false, false);
	+ return j_h_j(p1out, p1in, p2out, p2in, q1, q2, mt, incBot, mb, vev);
	}

	double ME_H_qQbar(HLV p1out, HLV p1in, HLV p2out, HLV p2in, HLV q1, HLV q2,
	double mt, bool incBot, double mb, double vev){
	- return j_h_j(p1out, p1in, p2out, p2in, q1, q2, mt, incBot, mb, vev, false, true);
	+ return j_h_j(p1out, p1in, p2out, p2in, q1, q2, mt, incBot, mb, vev);
	}

	double ME_H_qbarQ(HLV p1out, HLV p1in, HLV p2out, HLV p2in, HLV q1, HLV q2,
	double mt, bool incBot, double mb, double vev){
	- return j_h_j(p1out, p1in, p2out, p2in, q1, q2, mt, incBot, mb, vev, true, false);
	+ return j_h_j(p1out, p1in, p2out, p2in, q1, q2, mt, incBot, mb, vev);
	}

	double ME_H_qbarQbar(HLV p1out, HLV p1in, HLV p2out, HLV p2in, HLV q1, HLV q2,
	double mt, bool incBot, double mb, double vev){
	- return j_h_j(p1out, p1in, p2out, p2in, q1, q2, mt, incBot, mb, vev, true, true);
	+ return j_h_j(p1out, p1in, p2out, p2in, q1, q2, mt, incBot, mb, vev);
	}

	double ME_H_qg(HLV p1out, HLV p1in, HLV p2out, HLV p2in, HLV q1, HLV q2,
	double mt, bool incBot, double mb, double vev){
	- return j_h_j(p1out, p1in, p2out, p2in, q1, q2, mt, incBot, mb, vev, false, false)
	+ return j_h_j(p1out, p1in, p2out, p2in, q1, q2, mt, incBot, mb, vev)
	* K_g(p2out,p2in)/HEJ::C_A;
	}

	double ME_H_qbarg(HLV p1out, HLV p1in, HLV p2out, HLV p2in, HLV q1, HLV q2,
	double mt, bool incBot, double mb, double vev){
	- return j_h_j(p1out, p1in, p2out, p2in, q1, q2, mt, incBot, mb, vev, true, false)
	+ return j_h_j(p1out, p1in, p2out, p2in, q1, q2, mt, incBot, mb, vev)
	* K_g(p2out,p2in)/HEJ::C_A;
	}

	double ME_H_gg(HLV p1out, HLV p1in, HLV p2out, HLV p2in, HLV q1, HLV q2,
	double mt, bool incBot, double mb, double vev){
	- return j_h_j(p1out, p1in, p2out, p2in, q1, q2, mt, incBot, mb, vev, false, false)
	+ return j_h_j(p1out, p1in, p2out, p2in, q1, q2, mt, incBot, mb, vev)
	* K_g(p2out,p2in)/HEJ::C_A * K_g(p1out,p1in)/HEJ::C_A;
	}
	//@}
	namespace {

	//@{
	/// @brief Higgs vertex contracted with one current

	- CCurrent jH(HLV pout, bool helout, HLV pin,
	- bool helin, HLV q1, HLV q2,
	+ CCurrent jH(HLV const & pout, bool helout, HLV const & pin,
	+ bool helin, HLV const & q1, HLV const & q2,
	double mt, bool incBot, double mb, double vev)
	{
	CCurrent j2 = joi(pout,helout,pin,helin);
	CCurrent jq2(q2.e(),q2.px(),q2.py(),q2.pz());

	if(mt == infinity)
	return ((q1.dot(q2))j2 - j2.dot(q1)jq2)/(3M_PIvev);
	else
	{
	if(incBot)
	return (-16.M_PImbmb/vevj2.dot(q1)jq2A1(-q1,q2,mb)
	-16.M_PImbmb/vevj2*A2(-q1,q2,mb))
	+ (-16.M_PImtmt/vevj2.dot(q1)jq2A1(-q1,q2,mt)
	-16.M_PImtmt/vevj2*A2(-q1,q2,mt));
	else
	return (-16.M_PImtmt/vevj2.dot(q1)jq2A1(-q1,q2,mt)
	-16.M_PImtmt/vevj2*A2(-q1,q2,mt));
	}
	}
	//@}

	//@{
	/**
	* @brief Higgs+Jets Unordered Contributions, function to handle all incoming types.
	* @param pg Unordered Gluon momenta
	* @param p1out Outgoing Particle 1. (W emission)
	* @param p1in Incoming Particle 1. (W emission)
	* @param p2out Outgoing Particle 2 (Quark, unordered emission this side.)
	* @param p2in Incoming Particle 2 (Quark, unordered emission this side.)
	* @param q1 t-channel momenta into higgs vertex
	* @param q2 t-channel momenta out of higgs vertex
	* @param mt top mass (inf or value)
	* @param incBot Bool, to include bottom mass (true) or not (false)?
	* @param mb bottom mass (value)
	- * @param aqlineb Bool. Is Backwards quark line an anti-quark line?
	- * @param aqlinef Bool. Is Forwards quark line an anti-quark line?
	*
	* Calculates j_{uno}^\mu H j_\mu. Unordered with higgs vertex
	* somewhere in the FKL chain. Handles all possible incoming states.
	*/
	- double juno_h_j(HLV pg, HLV p1out, HLV p1in, HLV p2out, HLV p2in, HLV qH1, HLV qH2,
	- double mt, bool incBot, double mb, double vev, bool aqlineb
	- ){
	+ double juno_h_j(HLV const & pg, HLV const & p1out, HLV const & p1in,
	+ HLV const & p2out, HLV const & p2in,
	+ HLV const & qH1, HLV const & qH2,
	+ double mt, bool incBot, double mb, double vev
	+ ){
	// This construction is taking rapidity order: pg > p1out >> p2out
	HLV q1=p1in-p1out; // Top End
	HLV q2=-(p2in-p2out); // Bottom End
	HLV qg=p1in-p1out-pg; // Extra bit post-gluon

	// Note <p1\|eps\|pa> current split into two by gauge choice.
	// See James C's Thesis (p72). <p1\|eps\|pa> -> <p1\|pg><pg\|pa>
	- CCurrent mj1p=joi(p1out,!aqlineb, p1in,!aqlineb);
	- CCurrent mj1m=joi(p1out, aqlineb, p1in, aqlineb);
	- CCurrent jgap=joi(pg, !aqlineb, p1in,!aqlineb);
	- CCurrent jgam=joi(pg, aqlineb, p1in, aqlineb);
	+ CCurrent mj1p=joi(p1out,false, p1in,false);
	+ CCurrent mj1m=joi(p1out, true, p1in, true);
	+ CCurrent jgap=joi(pg, false, p1in,false);
	+ CCurrent jgam=joi(pg, true, p1in, true);

	// Note for function joo(): <p1+\|pg+> = <pg-\|p1->.
	- CCurrent j2gp=joo(p1out, !aqlineb, pg, !aqlineb);
	- CCurrent j2gm=joo(p1out, aqlineb, pg, aqlineb);
	+ CCurrent j2gp=joo(p1out, false, pg, false);
	+ CCurrent j2gm=joo(p1out, true, pg, true);

	CCurrent mjH2p=jH(p2out, true,p2in, true,qH1,qH2,mt,incBot,mb, vev);
	CCurrent mjH2m=jH(p2out,false,p2in,false,qH1,qH2,mt,incBot,mb, vev);

	// Dot products of these which occur again and again
	COM MHmp=mj1m.dot(mjH2p);
	COM MHmm=mj1m.dot(mjH2m);
	COM MHpp=mj1p.dot(mjH2p);
	COM MHpm=mj1p.dot(mjH2m);

	CCurrent p2o(p2out), p2i(p2in), p1o(p1out), p1i(p1in), qsum(q1+qg);

	CCurrent Lmm=(qsum(MHmm) + (-2.mjH2m.dot(pg))mj1m + 2.mj1m.dot(pg)*mjH2m
	+ ( p2o/pg.dot(p2out) + p2i/pg.dot(p2in) )( qg.m2()MHmm/2.) )/q1.m2();
	CCurrent Lmp=(qsum(MHmp) + (-2.mjH2p.dot(pg))mj1m + 2.mj1m.dot(pg)*mjH2p
	+ ( p2o/pg.dot(p2out) + p2i/pg.dot(p2in) )( qg.m2()MHmp/2.) )/q1.m2();
	CCurrent Lpm=(qsum(MHpm) + (-2.mjH2m.dot(pg))mj1p + 2.mj1p.dot(pg)*mjH2m
	+ ( p2o/pg.dot(p2out) + p2i/pg.dot(p2in) )( qg.m2()MHpm/2.) )/q1.m2();
	CCurrent Lpp=(qsum(MHpp) + (-2.mjH2p.dot(pg))mj1p + 2.mj1p.dot(pg)*mjH2p
	+ ( p2o/pg.dot(p2out) + p2i/pg.dot(p2in) )( qg.m2()MHpp/2.) )/q1.m2();

	CCurrent U1mm=(jgam.dot(mjH2m)j2gm+2.p1o*MHmm)/(p1out+pg).m2();
	CCurrent U1mp=(jgam.dot(mjH2p)j2gm+2.p1o*MHmp)/(p1out+pg).m2();
	CCurrent U1pm=(jgap.dot(mjH2m)j2gp+2.p1o*MHpm)/(p1out+pg).m2();
	CCurrent U1pp=(jgap.dot(mjH2p)j2gp+2.p1o*MHpp)/(p1out+pg).m2();
	CCurrent U2mm=((-1.)j2gm.dot(mjH2m)jgam+2.p1iMHmm)/(p1in-pg).m2();
	CCurrent U2mp=((-1.)j2gm.dot(mjH2p)jgam+2.p1iMHmp)/(p1in-pg).m2();
	CCurrent U2pm=((-1.)j2gp.dot(mjH2m)jgap+2.p1iMHpm)/(p1in-pg).m2();
	CCurrent U2pp=((-1.)j2gp.dot(mjH2p)jgap+2.p1iMHpp)/(p1in-pg).m2();

	constexpr double cf=HEJ::C_F;

	double amm=cf(2.vre(Lmm-U1mm,Lmm+U2mm))+2.cfcf/3.*vabs2(U1mm+U2mm);
	double amp=cf(2.vre(Lmp-U1mp,Lmp+U2mp))+2.cfcf/3.*vabs2(U1mp+U2mp);
	double apm=cf(2.vre(Lpm-U1pm,Lpm+U2pm))+2.cfcf/3.*vabs2(U1pm+U2pm);
	double app=cf(2.vre(Lpp-U1pp,Lpp+U2pp))+2.cfcf/3.*vabs2(U1pp+U2pp);
	double ampsq=-(amm+amp+apm+app)/(q2.m2()*qH2.m2());

	// Now add the t-channels for the Higgs
	ampsq/=qH1.m2()*qg.m2();
	ampsq/=16.;
	// Factor of (Cf/Ca) for each quark to match ME_H_qQ.
	ampsq=HEJ::C_FHEJ::C_F/HEJ::C_A/HEJ::C_A;

	return ampsq;
	}
	} // namespace anonymous

	double ME_H_unob_qQ(HLV pg, HLV p1out, HLV p1in, HLV p2out, HLV p2in, HLV qH1,
	HLV qH2, double mt, bool incBot, double mb, double vev){
	- return juno_h_j(pg, p1out, p1in, p2out, p2in, qH1, qH2, mt, incBot, mb, vev, false);
	+ return juno_h_j(pg, p1out, p1in, p2out, p2in, qH1, qH2, mt, incBot, mb, vev);
	}

	double ME_H_unob_qbarQ(HLV pg, HLV p1out, HLV p1in, HLV p2out, HLV p2in,
	HLV qH1, HLV qH2, double mt, bool incBot, double mb, double vev){
	- return juno_h_j(pg, p1out, p1in, p2out, p2in, qH1, qH2, mt, incBot, mb, vev, true);
	+ return juno_h_j(pg, p1out, p1in, p2out, p2in, qH1, qH2, mt, incBot, mb, vev);
	}

	double ME_H_unob_qQbar(HLV pg, HLV p1out, HLV p1in, HLV p2out, HLV p2in,
	HLV qH1, HLV qH2, double mt, bool incBot, double mb, double vev){
	- return juno_h_j(pg, p1out, p1in, p2out, p2in, qH1, qH2, mt, incBot, mb, vev, false);
	+ return juno_h_j(pg, p1out, p1in, p2out, p2in, qH1, qH2, mt, incBot, mb, vev);
	}

	double ME_H_unob_qbarQbar(HLV pg, HLV p1out, HLV p1in, HLV p2out, HLV p2in,
	HLV qH1, HLV qH2, double mt, bool incBot, double mb, double vev){
	- return juno_h_j(pg, p1out, p1in, p2out, p2in, qH1, qH2, mt, incBot, mb, vev, true);
	+ return juno_h_j(pg, p1out, p1in, p2out, p2in, qH1, qH2, mt, incBot, mb, vev);
	}

	double ME_H_unob_gQ(HLV pg, HLV p1out, HLV p1in, HLV p2out, HLV p2in,
	HLV qH1, HLV qH2, double mt, bool incBot, double mb, double vev){
	- return juno_h_j(pg, p1out, p1in, p2out, p2in, qH1, qH2, mt, incBot, mb, vev, false)
	+ return juno_h_j(pg, p1out, p1in, p2out, p2in, qH1, qH2, mt, incBot, mb, vev)
	*K_g(p2out,p2in)/HEJ::C_F;
	}

	double ME_H_unob_gQbar(HLV pg, HLV p1out, HLV p1in, HLV p2out, HLV p2in,
	HLV qH1, HLV qH2, double mt, bool incBot, double mb, double vev){
	- return juno_h_j(pg, p1out, p1in, p2out, p2in, qH1, qH2, mt, incBot, mb, vev, true)
	+ return juno_h_j(pg, p1out, p1in, p2out, p2in, qH1, qH2, mt, incBot, mb, vev)
	*K_g(p2out,p2in)/HEJ::C_F;
	}
	//@}

	// Begin finite mass stuff
	#ifdef HEJ_BUILD_WITH_QCDLOOP
	namespace {

	// All the stuff needed for the box functions in qg->qgH now...
	COM E1(HLV k1, HLV k2, HLV kh, double mq){
	HLV q2=-(k1+k2+kh);
	double Delta, Sigma, S1, S2, s12, s34;
	S1 = 2.*k1.dot(q2);
	S2 = 2.*k2.dot(q2);
	s12 = 2.*k1.dot(k2);
	s34 = q2.m2();
	Delta = s12s34 - S1S2;
	Sigma = 4.s12s34 - pow(S1+S2,2);

	return looprwfactor(-s12D0DD(k2, k1, q2, mq)(1 - 8.mqmq/s12 + S2/(2.s12) +
	S2(s12 - 8.mqmq)(s34 + S1)/(2.s12Delta) +
	2.(s34 + S1)(s34 + S1)/Delta +
	S2pow((s34 + S1),3)/Delta/Delta) - ((s12 + S2)C0DD(k2,
	k1 + q2, mq) -
	s12C0DD(k1, k2, mq) + (S1 - S2)C0DD(k1 + k2, q2, mq) -
	S1*C0DD(k1, q2,
	mq))(S2(s12 - 4.mqmq)/(2.s12Delta) +
	2.*(s34 + S1)/Delta +
	S2*pow((s34 + S1),2)/Delta/Delta) + (C0DD(k1, q2, mq) -
	C0DD(k1 + k2, q2, mq))(1. - 4.mq*mq/s12) -
	C0DD(k1 + k2, q2, mq)2.s34/
	S1 - (B0DD(k1 + q2, mq) -
	B0DD(k1 + k2 + q2, mq))2.s34*(s34 +
	S1)/(S1*Delta) + (B0DD(q2, mq) -
	B0DD(k1 + k2 + q2, mq) +
	s12*C0DD(k1 + k2, q2,
	mq))(2.s34*(s34 +
	S1)(S1 - S2)/(DeltaSigma) +
	2.s34(s34 + S1)/(S1*Delta)) + (B0DD(k1 + k2, mq) -
	B0DD(k1 + k2 + q2,
	mq) - (s34 + S1 + S2)C0DD(k1 + k2, q2, mq))2.*(s34 +
	S1)(2.s12*s34 -
	S2(S1 + S2))/(DeltaSigma));
	}

	COM F1(HLV k1, HLV k2, HLV kh, double mq){
	HLV q2 = -(k1+k2+kh);
	double Delta, Sigma, S1, S2, s12, s34;
	S1 = 2.*k1.dot(q2);
	S2 = 2.*k2.dot(q2);
	s12 = 2.*k1.dot(k2);
	s34 = q2.m2();
	Delta = s12s34 - S1S2;
	Sigma = 4.s12s34 - pow(S1+S2,2);

	return looprwfactor(-S2D0DD(k1, k2, q2,
	mq)(0.5 - (s12 - 8.mqmq)(s34 + S2)/(2.*Delta) -
	s12pow((s34 + S2),3)/Delta/Delta) + ((s12 + S1)C0DD(k1,
	k2 + q2, mq) -
	s12C0DD(k1, k2, mq) - (S1 - S2)C0DD(k1 + k2, q2, mq) -
	S2*C0DD(k2, q2,
	mq))(S2(s12 - 4.mqmq)/(2.s12Delta) +
	S2*pow((s34 + S2),2)/Delta/Delta)
	- (C0DD(k1 + k2, q2, mq) - C0DD(k1, k2 + q2, mq))(1. - 4.mq*mq/s12)
	- C0DD(k1, k2 + q2, mq) + (B0DD(k2 + q2, mq) -
	B0DD(k1 + k2 + q2,
	mq))2.pow((s34 + S2),2)/((s12 + S1)*Delta) - (B0DD(
	q2, mq) - B0DD(k1 + k2 + q2, mq) +
	s12C0DD(k1 + k2, q2, mq))2.s34(s34 +
	S2)(S2 - S1)/(DeltaSigma) + (B0DD(
	k1 + k2, mq) -
	B0DD(k1 + k2 + q2,
	mq) - (s34 + S1 + S2)C0DD(k1 + k2, q2, mq))2.*(s34 +
	S2)(2.s12*s34 -
	S2(S1 + S2))/(DeltaSigma));
	}

	COM G1(HLV k1, HLV k2, HLV kh, double mq){
	HLV q2 = -(k1+k2+kh);
	double Delta, S1, S2, s12, s34;
	S1 = 2.*k1.dot(q2);
	S2 = 2.*k2.dot(q2);
	s12 = 2.*k1.dot(k2);
	s34 = q2.m2();
	Delta = s12s34 - S1S2;

	return looprwfactor(S2D0DD(k1, q2, k2,
	mq)(Delta/s12/s12 - 4.mq*mq/s12) -
	S2((s12 + S1)C0DD(k1, k2 + q2, mq) -
	S1C0DD(k1, q2, mq))(1./
	s12/s12 - (s12 - 4.mqmq)/(2.s12Delta)) -
	S2((s12 + S2)C0DD(k1 + q2, k2, mq) -
	S2C0DD(k2, q2, mq))(1./
	s12/s12 + (s12 - 4.mqmq)/(2.s12Delta)) -
	C0DD(k1, q2, mq) - (C0DD(k1, k2 + q2, mq) -
	C0DD(k1, q2, mq))4.mq*mq/
	s12 + (B0DD(k1 + q2, mq) - B0DD(k1 + k2 + q2, mq))*2./
	s12 + (B0DD(k1 + q2, mq) -
	B0DD(q2, mq))2.s34/(s12*S1) + (B0DD(k2 + q2, mq) -
	B0DD(k1 + k2 + q2, mq))2.(s34 + S2)/(s12*(s12 + S1)));
	}

	COM E4(HLV k1, HLV k2, HLV kh, double mq){
	HLV q2 = -(k1+k2+kh);
	double Delta, Sigma, S1, S2, s12, s34;
	S1 = 2.*k1.dot(q2);
	S2 = 2.*k2.dot(q2);
	s12 = 2.*k1.dot(k2);
	s34 = q2.m2();
	Delta = s12s34 - S1S2;
	Sigma = 4.s12s34 - pow(S1+S2,2);

	return looprwfactor* (-s12*D0DD(k2, k1, q2,
	mq)(0.5 - (S1 - 8.mqmq)(s34 + S1)/(2.*Delta) -
	s12pow((s34 + S1),3)/Delta/Delta) + ((s12 + S2)C0DD(k2,
	k1 + q2, mq) -
	s12C0DD(k1, k2, mq) + (S1 - S2)C0DD(k1 + k2, q2, mq) -
	S1C0DD(k1, q2, mq))((S1 - 4.mqmq)/(2.*Delta) +
	s12*pow((s34 + S1),2)/Delta/Delta) -
	C0DD(k1 + k2, q2, mq) + (B0DD(k1 + q2, mq) -
	B0DD(k1 + k2 + q2, mq))(2.s34/Delta +
	2.s12(s34 + S1)/((s12 + S2)*Delta)) - (B0DD(
	q2, mq) - B0DD(k1 + k2 + q2, mq) +
	s12*C0DD(k1 + k2, q2,
	mq))((2.s34(2.s12s34 - S2(S1 + S2) +
	s12(S1 - S2)))/(DeltaSigma)) + (B0DD(k1 + k2, mq) -
	B0DD(k1 + k2 + q2, mq) - (s34 + S1 + S2)*C0DD(k1 + k2, q2, mq))
	((2.s12(2.s12s34 - S1(S1 + S2) + s34(S2 - S1)))/(DeltaSigma)));
	}

	COM F4(HLV k1, HLV k2, HLV kh, double mq){
	HLV q2 = -(k1+k2+kh);
	double Delta, Sigma, S1, S2, s12, s34;
	S1 = 2.*k1.dot(q2);
	S2 = 2.*k2.dot(q2);
	s12 = 2.*k1.dot(k2);
	s34 = q2.m2();
	Delta = s12s34 - S1S2;
	Sigma = 4.s12s34 - pow(S1+S2,2);

	return looprwfactor* (-s12*D0DD(k1, k2, q2,
	mq)(0.5 + (S1 - 8.mqmq)(s34 + S2)/(2.*Delta) +
	s12pow((s34 + S2),3)/Delta/Delta) - ((s12 + S1)C0DD(k1,
	k2 + q2, mq) -
	s12C0DD(k1, k2, mq) - (S1 - S2)C0DD(k1 + k2, q2, mq) -
	S2C0DD(k2, q2, mq))((S1 - 4.mqmq)/(2.*Delta) +
	s12*pow((s34 + S2),2)/Delta/Delta) -
	C0DD(k1 + k2, q2, mq) - (B0DD(k2 + q2, mq) -
	B0DD(k1 + k2 + q2, mq))2.(s34 +
	S2)/Delta + (B0DD(q2, mq) -
	B0DD(k1 + k2 + q2, mq) +
	s12C0DD(k1 + k2, q2, mq))2.s34(2.s12s34 -
	S1*(S1 + S2) +
	s12(S2 - S1))/(DeltaSigma) - (B0DD(k1 + k2, mq) -
	B0DD(k1 + k2 + q2, mq) - (s34 + S1 + S2)*C0DD(k1 + k2, q2, mq))
	(2.s12(2.s12s34 - S2(S1 + S2) + s34(S1 - S2))/(DeltaSigma)));
	}

	COM G4(HLV k1, HLV k2, HLV kh, double mq){
	HLV q2 = -(k1+k2+kh);
	double Delta, S1, S2, s12, s34;
	S1 = 2.*k1.dot(q2);
	S2 = 2.*k2.dot(q2);
	s12 = 2.*k1.dot(k2);
	s34 = q2.m2();
	Delta = s12s34 - S1S2;

	return looprwfactor* (-D0DD(k1, q2, k2,
	mq)*(Delta/s12 + (s12 + S1)/2. -
	4.mqmq) + ((s12 + S1)*C0DD(k1, k2 + q2, mq) -
	S1C0DD(k1, q2, mq))(1./
	s12 - (S1 - 4.mqmq)/(2.Delta)) + ((s12 + S2)C0DD(
	k1 + q2, k2, mq) -
	S2C0DD(k2, q2, mq))(1./
	s12 + (S1 - 4.mqmq)/(2.*Delta)) + (B0DD(
	k1 + k2 + q2, mq) -
	B0DD(k1 + q2, mq))*2./(s12 + S2));
	}

	COM E10(HLV k1, HLV k2, HLV kh, double mq){
	HLV q2 = -(k1+k2+kh);
	double Delta, Sigma, S1, S2, s12, s34;
	S1 = 2.*k1.dot(q2);
	S2 = 2.*k2.dot(q2);
	s12 = 2.*k1.dot(k2);
	s34 = q2.m2();
	Delta = s12s34 - S1S2;
	Sigma = 4.s12s34 - pow(S1+S2,2);

	return looprwfactor(-s12D0DD(k2, k1, q2, mq)*((s34 + S1)/Delta +
	12.mqmqS1(s34 + S1)/Delta/Delta -
	4.s12S1pow((s34 + S1),3)/Delta/Delta/Delta) - ((s12 + S2)C0DD(k2, k1 + q2, mq) -
	s12C0DD(k1, k2, mq) + (S1 - S2)C0DD(k1 + k2, q2, mq) -
	S1C0DD(k1, q2, mq))(1./Delta +
	4.mqmq*S1/Delta/Delta -
	4.s12S1*pow((s34 + S1),2)/Delta/Delta/Delta) +
	C0DD(k1 + k2, q2, mq)(4.s12s34(S1 - S2)/(Delta*Sigma) -
	4.*(s12 -
	2.mqmq)(2.s12*s34 -
	S1(S1 + S2))/(DeltaSigma)) + (B0DD(k1 + q2, mq) -
	B0DD(k1 + k2 + q2, mq))(4.(s34 + S1)/((s12 + S2)*Delta) +
	8.S1(s34 + S1)/Delta/Delta) + (B0DD(q2, mq) -
	B0DD(k1 + k2 + q2, mq) +
	s12C0DD(k1 + k2, q2, mq))(12.s34(2.*s12 + S1 +
	S2)(2.s12*s34 -
	S1(S1 + S2))/(DeltaSigma*Sigma) -
	4.s34(4.s12 + 3.S1 +
	S2)/(Delta*Sigma) +
	8.s12s34(s34(s12 + S2) -
	S1*(s34 +
	S1))/(DeltaDeltaSigma)) + (B0DD(k1 + k2, mq) -
	B0DD(k1 + k2 + q2, mq) - (s34 + S1 + S2)*C0DD(k1 + k2, q2,
	mq))(12.s12(2.s34 + S1 +
	S2)(2.s12*s34 -
	S1(S1 + S2))/(DeltaSigma*Sigma) +
	8.s12S1(s34(s12 + S2) -
	S1*(s34 +
	S1))/(DeltaDeltaSigma))) + (COM(0.,1.)/(4.M_PIM_PI))((2.s12*s34 -
	S1(S1 + S2))/(DeltaSigma));
	}

	COM F10(HLV k1, HLV k2, HLV kh, double mq){
	HLV q2 = -(k1+k2+kh);
	double Delta, Sigma, S1, S2, s12, s34;
	S1 = 2.*k1.dot(q2);
	S2 = 2.*k2.dot(q2);
	s12 = 2.*k1.dot(k2);
	s34 = q2.m2();
	Delta = s12s34 - S1S2;
	Sigma = 4.s12s34 - pow(S1+S2,2);

	return looprwfactor* (s12*D0DD(k1, k2, q2,
	mq)((s34 + S2)/Delta - 4.mq*mq/Delta +
	12.mqmqs34(s12 + S1)/Delta/Delta -
	4.s12pow((s34 + S2),2)/Delta/Delta -
	4.s12S1pow((s34 + S2),3)/Delta/Delta/Delta) + ((s12 + S1)C0DD(k1, k2 + q2, mq) -
	s12C0DD(k1, k2, mq) - (S1 - S2)C0DD(k1 + k2, q2, mq) -
	S2C0DD(k2, q2, mq))(1./Delta +
	4.mqmq*S1/Delta/Delta -
	4.s12(s34 + S2)/Delta/Delta -
	4.s12S1*pow((s34 + S2),2)/Delta/Delta/Delta) -
	C0DD(k1 + k2, q2, mq)(4.s12s34/(S2Delta) +
	4.s12s34(S2 - S1)/(DeltaSigma) +
	4.*(s12 -
	2.mqmq)(2.s12*s34 -
	S1(S1 + S2))/(DeltaSigma)) - (B0DD(
	k2 + q2, mq) -
	B0DD(k1 + k2 + q2, mq))(4.s34/(S2*Delta) +
	8.s34(s12 + S1)/Delta/Delta) - (B0DD(q2, mq) -
	B0DD(k1 + k2 + q2, mq) +
	s12*C0DD(k1 + k2, q2,
	mq))(-12s34(2s12 + S1 +
	S2)(2.s12*s34 -
	S1(S1 + S2))/(DeltaSigma*Sigma) -
	4.s12s34s34/(S2Delta*Delta) +
	4.s34S1/(Delta*Sigma) -
	4.s34(s12s34(2.*s12 + S2) -
	S1S1(2.*s12 +
	S1))/(DeltaDeltaSigma)) - (B0DD(k1 + k2, mq) -
	B0DD(k1 + k2 + q2, mq) - (s34 + S1 + S2)C0DD(k1 + k2, q2, mq))(-12.s12(2.*s34 + S1 +
	S2)(2.s12*s34 -
	S1(S1 + S2))/(DeltaSigma*Sigma) +
	8.s12(2.s34 + S1)/(DeltaSigma) -
	8.s12s34(2.s12s34 - S1(S1 + S2) +
	s12*(S2 -
	S1))/(DeltaDeltaSigma))) + (COM(0.,1.)/(4.M_PIM_PI))((2.s12*s34 -
	S1(S1 + S2))/(DeltaSigma));

	}

	COM G10(HLV k1, HLV k2, HLV kh, double mq){
	HLV q2 = -(k1+k2+kh);
	double Delta, S1, S2, s12, s34;
	S1 = 2.*k1.dot(q2);
	S2 = 2.*k2.dot(q2);
	s12 = 2.*k1.dot(k2);
	s34 = q2.m2();
	Delta = s12s34 - S1S2;

	return looprwfactor* (-D0DD(k1, q2, k2, mq)*(1. +
	4.S1mqmq/Delta) + ((s12 + S1)C0DD(k1,
	k2 + q2, mq) -
	S1C0DD(k1, q2, mq))(1./Delta +
	4.S1mqmq/Delta/Delta) - ((s12 + S2)C0DD(k1 + q2,
	k2, mq) - S2C0DD(k2, q2, mq))(1./Delta +
	4.S1mq*mq/Delta/Delta) + (B0DD(k1 + k2 + q2, mq) -
	B0DD(k1 + q2, mq))4.(s34 +
	S1)/(Delta*(s12 + S2)) + (B0DD(q2, mq) -
	B0DD(k2 + q2, mq))4.s34/(Delta*S2));
	}

	COM H1(HLV k1, HLV k2, HLV kh, double mq){
	return E1(k1,k2,kh,mq)+F1(k1,k2,kh,mq)+G1(k1,k2,kh,mq);
	}

	COM H4(HLV k1, HLV k2, HLV kh, double mq){
	return E4(k1,k2,kh,mq)+F4(k1,k2,kh,mq)+G4(k1,k2,kh,mq);
	}

	COM H10(HLV k1, HLV k2, HLV kh, double mq){
	return E10(k1,k2,kh,mq)+F10(k1,k2,kh,mq)+G10(k1,k2,kh,mq);
	}

	COM H2(HLV k1, HLV k2, HLV kh, double mq){
	return -1.*H1(k2,k1,kh,mq);
	}

	COM H5(HLV k1, HLV k2, HLV kh, double mq){
	return -1.*H4(k2,k1,kh,mq);
	}

	COM H12(HLV k1, HLV k2, HLV kh, double mq){
	return -1.*H10(k2,k1,kh,mq);
	}

	// FL and FT functions
	COM FL(HLV q1, HLV q2, double mq){
	HLV Q = q1 + q2;
	double detQ2 = q1.m2()q2.m2() - q1.dot(q2)q1.dot(q2);
	return -1./(2.detQ2)((2.-
	3.q1.m2()q2.dot(Q)/detQ2)*(B0DD(q1, mq) -
	B0DD(Q, mq)) + (2. -
	3.q2.m2()q1.dot(Q)/detQ2)*(B0DD(q2, mq) -
	B0DD(Q, mq)) - (4.mqmq + q1.m2() + q2.m2() +
	Q.m2() - 3.q1.m2()q2.m2()Q.m2()/detQ2)C0DD(
	q1, q2, mq) - 2.);
	}

	COM FT(HLV q1, HLV q2, double mq){
	HLV Q = q1 + q2;
	double detQ2 = q1.m2()q2.m2() - q1.dot(q2)q1.dot(q2);
	return -1./(2.detQ2)(Q.m2()(B0DD(q1, mq) + B0DD(q2, mq) - 2.B0DD(Q, mq) -
	2.q1.dot(q2)C0DD(q1, q2, mq)) + (q1.m2() -
	q2.m2()) *(B0DD(q1, mq) - B0DD(q2, mq))) -
	q1.dot(q2)*FL(q1, q2, mq);
	}

	HLV ParityFlip(HLV p){
	HLV flippedVector;
	flippedVector.setE(p.e());
	flippedVector.setX(-p.x());
	flippedVector.setY(-p.y());
	flippedVector.setZ(-p.z());
	return flippedVector;
	}

	/// @brief HC amp for qg->qgH with finite top (i.e. j^{++}_H)
	void g_gH_HC(HLV pa, HLV p1,
	HLV pH, double mq, double vev, current &retAns)
	{
	current cura1,pacur,p1cur,pHcur,conjeps1,conjepsH1,epsa,epsHa,epsHapart1,
	epsHapart2,conjepsH1part1,conjepsH1part2;
	COM ang1a,sqa1;

	const double F = 4.mqmq/vev;
	// Easier to have the whole thing as current object so I can use cdot functionality.
	// Means I need to write pa,p1 as current objects
	to_current(pa, pacur);
	to_current(p1,p1cur);
	to_current(pH,pHcur);
	bool gluonforward = true;
	if(pa.z() < 0)
	gluonforward = false;
	//HEJ gauge
	jio(pa,false,p1,false,cura1);

	if(gluonforward){
	// sqrt(2pa_-/p1_-)*p1_perp/abs(p1_perp)
	ang1a = sqrt(pa.plus()p1.minus())(p1.x()+COM(0.,1.)*p1.y())/p1.perp();
	// sqrt(2pa_-/p1_-)p1_perp/abs(p1_perp)
	sqa1 = sqrt(pa.plus()p1.minus())(p1.x()-COM(0.,1.)*p1.y())/p1.perp();
	} else {
	ang1a = sqrt(pa.minus()*p1.plus());
	sqa1 = sqrt(pa.minus()*p1.plus());
	}

	const double prop = (pa-p1-pH).m2();

	cmult(-1./sqrt(2)/ang1a,cura1,conjeps1);
	cmult(1./sqrt(2)/sqa1,cura1,epsa);

	const COM Fta = FT(-pa,pa-pH,mq)/(pa-pH).m2();
	const COM Ft1 = FT(-p1-pH,p1,mq)/(p1+pH).m2();

	const COM h4 = H4(p1,-pa,pH,mq);
	const COM h5 = H5(p1,-pa,pH,mq);
	const COM h10 = H10(p1,-pa,pH,mq);
	const COM h12 = H12(p1,-pa,pH,mq);

	cmult(Fta*pa.dot(pH), epsa, epsHapart1);
	cmult(-1.Ftacdot(pHcur,epsa), pacur, epsHapart2);
	cmult(Ft1*cdot(pHcur,conjeps1), p1cur, conjepsH1part1);
	cmult(-Ft1*p1.dot(pH), conjeps1, conjepsH1part2);
	cadd(epsHapart1, epsHapart2, epsHa);
	cadd(conjepsH1part1, conjepsH1part2, conjepsH1);
	const COM aH1 = cdot(pHcur, cura1);

	current T1,T2,T3,T4,T5,T6,T7,T8,T9,T10;

	if(gluonforward){
	cmult(sqrt(2.)sqrt(p1.plus()/pa.plus())prop/sqa1, conjepsH1, T1);
	cmult(-sqrt(2.)sqrt(pa.plus()/p1.plus())prop/ang1a, epsHa, T2);
	}
	else{
	cmult(-sqrt(2.)*sqrt(p1.minus()/pa.minus())
	((p1.x()-COM(0.,1.)p1.y())/p1.perp())*prop/sqa1, conjepsH1, T1);
	cmult(sqrt(2.)*sqrt(pa.minus()/p1.minus())
	((p1.x()-COM(0.,1.)p1.y())/p1.perp())*prop/ang1a, epsHa, T2);
	}

	cmult(sqrt(2.)/ang1a*aH1, epsHa, T3);
	cmult(sqrt(2.)/sqa1*aH1, conjepsH1, T4);

	cmult(-sqrt(2.)Ftapa.dot(p1)*aH1/sqa1, conjeps1, T5);
	cmult(-sqrt(2.)Ft1pa.dot(p1)*aH1/ang1a, epsa, T6);

	cmult(-aH1/sqrt(2.)/sqa1h48.COM(0.,1.)M_PI*M_PI, conjeps1, T7);
	cmult(aH1/sqrt(2.)/ang1ah58.COM(0.,1.)M_PI*M_PI, epsa, T8);
	cmult(aH1aH1/2./ang1a/sqa1h108.COM(0.,1.)M_PIM_PI, pacur, T9);
	cmult(-aH1aH1/2./ang1a/sqa1h128.COM(0.,1.)M_PIM_PI, p1cur, T10);

	current ans;
	for(int i=0;i<4;i++)
	{
	ans[i] = T1[i]+T2[i]+T3[i]+T4[i]+T5[i]+T6[i]+T7[i]+T8[i]+T9[i]+T10[i];
	}

	retAns[0] = F/prop*ans[0];
	retAns[1] = F/prop*ans[1];
	retAns[2] = F/prop*ans[2];
	retAns[3] = F/prop*ans[3];
	}

	/// @brief HNC amp for qg->qgH with finite top (i.e. j^{+-}_H)
	void g_gH_HNC(HLV pa, HLV p1, HLV pH, double mq, double vev, current &retAns)
	{
	const double F = 4.mqmq/vev;
	COM ang1a,sqa1;
	current conjepsH1,epsHa,p1cur,pacur,pHcur,conjeps1,epsa,paplusp1cur,
	p1minuspacur,cur1a,cura1,epsHapart1,epsHapart2,conjepsH1part1,
	conjepsH1part2;
	// Find here if pa, meaning the gluon, is forward or backward
	bool gluonforward = true;
	if(pa.z() < 0)
	gluonforward = false;

	jio(pa,true,p1,true,cura1);
	joi(p1,true,pa,true,cur1a);

	to_current(pa,pacur);
	to_current(p1,p1cur);
	to_current(pH,pHcur);
	to_current(pa+p1,paplusp1cur);
	to_current(p1-pa,p1minuspacur);
	const COM aH1 = cdot(pHcur,cura1);
	const COM oneHa = std::conj(aH1); // = cdot(pHcur,cur1a)

	if(gluonforward){
	// sqrt(2pa_-/p1_-)*p1_perp/abs(p1_perp)
	ang1a = sqrt(pa.plus()p1.minus())(p1.x()+COM(0.,1.)*p1.y())/p1.perp();
	// sqrt(2pa_-/p1_-)p1_perp/abs(p1_perp)
	sqa1 = sqrt(pa.plus()p1.minus())(p1.x()-COM(0.,1.)*p1.y())/p1.perp();
	}
	else {
	ang1a = sqrt(pa.minus()*p1.plus());
	sqa1 = sqrt(pa.minus()*p1.plus());
	}

	const double prop = (pa-p1-pH).m2();

	cmult(1./sqrt(2)/sqa1, cur1a, epsa);
	cmult(-1./sqrt(2)/sqa1, cura1, conjeps1);
	const COM phase = cdot(conjeps1, epsa);
	const COM Fta = FT(-pa,pa-pH,mq)/(pa-pH).m2();
	const COM Ft1 = FT(-p1-pH,p1,mq)/(p1+pH).m2();
	const COM Falpha = FT(p1-pa,pa-p1-pH,mq);
	const COM Fbeta = FL(p1-pa,pa-p1-pH,mq);

	const COM h1 = H1(p1,-pa, pH, mq);
	const COM h2 = H2(p1,-pa, pH, mq);
	const COM h4 = H4(p1,-pa, pH, mq);
	const COM h5 = H5(p1,-pa, pH, mq);
	const COM h10 = H10(p1,-pa, pH, mq);
	const COM h12 = H12(p1,-pa, pH, mq);

	cmult(Fta*pa.dot(pH), epsa, epsHapart1);
	cmult(-1.Ftacdot(pHcur,epsa), pacur, epsHapart2);
	cmult(Ft1*cdot(pHcur,conjeps1), p1cur, conjepsH1part1);
	cmult(-Ft1*p1.dot(pH), conjeps1, conjepsH1part2);
	cadd(epsHapart1, epsHapart2, epsHa);
	cadd(conjepsH1part1, conjepsH1part2, conjepsH1);

	current T1,T2,T3,T4,T5a,T5b,T6,T7,T8a,T8b,T9,T10,T11a,
	T11b,T12a,T12b,T13;

	if(gluonforward){
	cmult(sqrt(2.)sqrt(p1.plus()/pa.plus())prop/sqa1, conjepsH1, T1);
	cmult(-sqrt(2.)sqrt(pa.plus()/p1.plus())prop/sqa1, epsHa, T2);
	}
	else{
	cmult(-sqrt(2.)sqrt(p1.minus()/pa.minus())((p1.x()-COM(0.,1.)*p1.y())/p1.perp())
	*prop/sqa1, conjepsH1, T1);
	cmult(sqrt(2.)sqrt(pa.minus()/p1.minus())((p1.x()+COM(0.,1.)*p1.y())/p1.perp())
	*prop/sqa1, epsHa, T2);
	}

	const COM boxdiagFact = 8.COM(0.,1.)M_PI*M_PI;

	cmult(aH1*sqrt(2.)/sqa1, epsHa, T3);
	cmult(oneHa*sqrt(2.)/sqa1, conjepsH1, T4);
	cmult(-2.phaseFta*pa.dot(pH), p1cur, T5a);
	cmult(2.phaseFt1*p1.dot(pH), pacur, T5b);
	cmult(-sqrt(2.)Ftap1.dot(pa)*oneHa/sqa1, conjeps1, T6);
	cmult(-sqrt(2.)Ft1pa.dot(p1)*aH1/sqa1, epsa, T7);

	cmult(-boxdiagFactphaseh2, pacur, T8a);
	cmult(boxdiagFactphaseh1, p1cur, T8b);
	cmult(boxdiagFactaH1/sqrt(2.)/sqa1h5, epsa, T9);
	cmult(-boxdiagFactoneHa/sqrt(2.)/sqa1h4, conjeps1, T10);
	cmult(boxdiagFactaH1oneHa/2./sqa1/sqa1*h10, pacur, T11a);
	cmult(-boxdiagFactaH1oneHa/2./sqa1/sqa1*h12, p1cur, T11b);

	cmult(-phase/(pa-p1).m2()Falpha(p1-pa).dot(pa-p1-pH), paplusp1cur, T12a);
	cmult(phase/(pa-p1).m2()Falpha(pa+p1).dot(pa-p1-pH), p1minuspacur, T12b);
	cmult(-phaseFbeta(pa-p1-pH).m2(), paplusp1cur, T13);

	current ans;
	for(int i=0;i<4;i++)
	{
	ans[i] = T1[i]+T2[i]+T3[i]+T4[i]+T5a[i]+T5b[i]+T6[i]+T7[i]+T8a[i]+T8b[i]
	+T9[i]+T10[i]+T11a[i]+T11b[i]+T12a[i]+T12b[i]+T13[i];
	}

	retAns[0] = F/prop*ans[0];
	retAns[1] = F/prop*ans[1];
	retAns[2] = F/prop*ans[2];
	retAns[3] = F/prop*ans[3];
	}

	} // namespace anonymous

	// JDC - new amplitude with Higgs emitted close to gluon with full mt effects.
	// Keep usual HEJ-style function call
	double ME_Houtside_gq(HLV p1out, HLV p1in, HLV p2out, HLV p2in, HLV pH,
	double mq, bool includeBottom, double mq2, double vev
	){

	current cur2bplus,cur2bminus, cur2bplusFlip, cur2bminusFlip;
	current retAns,retAnsb;
	joi(p2out,true,p2in,true,cur2bplus);
	joi(p2out,false,p2in,false,cur2bminus);
	joi(ParityFlip(p2out),true,ParityFlip(p2in),true,cur2bplusFlip);
	joi(ParityFlip(p2out),false,ParityFlip(p2in),false,cur2bminusFlip);

	COM app1,app2,apm1,apm2;
	COM app3, app4, apm3, apm4;

	if(!includeBottom)
	{
	g_gH_HC(p1in,p1out,pH,mq,vev,retAns);
	app1=cdot(retAns,cur2bplus);
	app2=cdot(retAns,cur2bminus);

	g_gH_HC(ParityFlip(p1in),ParityFlip(p1out),ParityFlip(pH),mq,vev,retAns);
	app3=cdot(retAns,cur2bplusFlip);
	app4=cdot(retAns,cur2bminusFlip);

	// And non-conserving bits
	g_gH_HNC(p1in,p1out,pH,mq,vev,retAns);
	apm1=cdot(retAns,cur2bplus);
	apm2=cdot(retAns,cur2bminus);

	g_gH_HNC(ParityFlip(p1in),ParityFlip(p1out),ParityFlip(pH),mq,vev,retAns);
	apm3=cdot(retAns,cur2bplusFlip);
	apm4=cdot(retAns,cur2bminusFlip);
	} else {
	g_gH_HC(p1in,p1out,pH,mq,vev,retAns);
	g_gH_HC(p1in,p1out,pH,mq2,vev,retAnsb);
	app1=cdot(retAns,cur2bplus) + cdot(retAnsb,cur2bplus);
	app2=cdot(retAns,cur2bminus) + cdot(retAnsb,cur2bminus);

	g_gH_HC(ParityFlip(p1in),ParityFlip(p1out),ParityFlip(pH),mq,vev,retAns);
	g_gH_HC(ParityFlip(p1in),ParityFlip(p1out),ParityFlip(pH),mq2,vev,retAnsb);
	app3=cdot(retAns,cur2bplusFlip) + cdot(retAnsb,cur2bplusFlip);
	app4=cdot(retAns,cur2bminusFlip) + cdot(retAnsb,cur2bminusFlip);

	// And non-conserving bits
	g_gH_HNC(p1in,p1out,pH,mq,vev,retAns);
	g_gH_HNC(p1in,p1out,pH,mq2,vev,retAnsb);
	apm1=cdot(retAns,cur2bplus) + cdot(retAnsb,cur2bplus);
	apm2=cdot(retAns,cur2bminus) + cdot(retAnsb,cur2bminus);

	g_gH_HNC(ParityFlip(p1in),ParityFlip(p1out),ParityFlip(pH),mq,vev,retAns);
	g_gH_HNC(ParityFlip(p1in),ParityFlip(p1out),ParityFlip(pH),mq2,vev,retAnsb);
	apm3=cdot(retAns,cur2bplusFlip) + cdot(retAnsb,cur2bplusFlip);
	apm4=cdot(retAns,cur2bminusFlip) + cdot(retAnsb,cur2bminusFlip);
	}

	return abs2(app1) + abs2(app2) + abs2(app3) + abs2(app4) + abs2(apm1)
	+ abs2(apm2) + abs2(apm3) + abs2(apm4);
	}
	#endif // HEJ_BUILD_WITH_QCDLOOP

	double C2gHgm(HLV p2, HLV p1, HLV pH, double vev)
	{
	const double A=1./(3.M_PIvev);
	// Implements Eq. (4.22) in hep-ph/0301013 with modifications to incoming plus momenta
	double s12,p1p,p2p;
	COM p1perp,p3perp,phperp;
	// Determine first whether this is the case p1p\sim php>>p3p or the opposite
	s12=p1.invariantMass2(-p2);
	if (p2.pz()>0.) { // case considered in hep-ph/0301013
	p1p=p1.plus();
	p2p=p2.plus();
	} else { // opposite case
	p1p=p1.minus();
	p2p=p2.minus();
	}
	p1perp=p1.px()+COM(0,1)*p1.py();
	phperp=pH.px()+COM(0,1)*pH.py();
	p3perp=-(p1perp+phperp);

	COM temp=COM(0,1)A/(2.s12)(p2p/p1pconj(p1perp)p3perp+p1p/p2pp1perp*conj(p3perp));
	temp=temp*conj(temp);
	return temp.real();
	}

	double C2gHgp(HLV p2, HLV p1, HLV pH, double vev)
	{
	const double A=1./(3.M_PIvev);
	// Implements Eq. (4.23) in hep-ph/0301013
	double s12,php,p1p,phm;
	COM p1perp,p3perp,phperp;
	// Determine first whether this is the case p1p\sim php>>p3p or the opposite
	s12=p1.invariantMass2(-p2);
	if (p2.pz()>0.) { // case considered in hep-ph/0301013
	php=pH.plus();
	phm=pH.minus();
	p1p=p1.plus();
	} else { // opposite case
	php=pH.minus();
	phm=pH.plus();
	p1p=p1.minus();
	}
	p1perp=p1.px()+COM(0,1)*p1.py();
	phperp=pH.px()+COM(0,1)*pH.py();
	p3perp=-(p1perp+phperp);

	COM temp=-COM(0,1)A/(2.s12)( conj(p1perpp3perp)*pow(php/p1p,2)/(1.+php/p1p)
	+s12(pow(conj(phperp),2)/(pow(abs(phperp),2)+p1pphm)
	-pow(conj(p3perp)
	+(1.+php/p1p)conj(p1perp),2)/((1.+php/p1p)(pH.m2()+2.*p1.dot(pH)))) );
	temp=temp*conj(temp);
	return temp.real();
	}

	double C2qHqm(HLV p2, HLV p1, HLV pH, double vev)
	{
	const double A=1./(3.M_PIvev);
	// Implements Eq. (4.22) in hep-ph/0301013
	double s12,p2p,p1p;
	COM p1perp,p3perp,phperp;
	// Determine first whether this is the case p1p\sim php>>p3p or the opposite
	s12=p1.invariantMass2(-p2);
	if (p2.pz()>0.) { // case considered in hep-ph/0301013
	p2p=p2.plus();
	p1p=p1.plus();
	} else { // opposite case
	p2p=p2.minus();
	p1p=p1.minus();
	}
	p1perp=p1.px()+COM(0,1)*p1.py();
	phperp=pH.px()+COM(0,1)*pH.py();
	p3perp=-(p1perp+phperp);

	COM temp=A/(2.s12)( sqrt(p2p/p1p)p3perpconj(p1perp)
	+sqrt(p1p/p2p)p1perpconj(p3perp) );
	temp=temp*conj(temp);
	return temp.real();
	}
	diff --git a/src/jets.cc b/src/jets.cc
	index c97ca19..4a07c63 100644
	--- a/src/jets.cc
	+++ b/src/jets.cc
	@@ -1,369 +1,372 @@
	/**
	* \authors The HEJ collaboration (see AUTHORS for details)
	* \date 2019
	* \copyright GPLv2 or later
	*/
	#include "HEJ/jets.hh"
	+
	#include "HEJ/Constants.hh"

	// Colour acceleration multiplier for gluons see eq. (7) in arXiv:0910.5113
	// @TODO: this is not a current and should be moved somewhere else
	double K_g(double p1minus, double paminus) {
	return 1./2.(p1minus/paminus + paminus/p1minus)(HEJ::C_A - 1./HEJ::C_A) + 1./HEJ::C_A;
	}
	double K_g(
	HLV const & pout,
	HLV const & pin
	) {
	if(pin.z() > 0) return K_g(pout.plus(), pin.plus());
	return K_g(pout.minus(), pin.minus());
	}

	CCurrent CCurrent::operator+(const CCurrent& other)
	{
	COM result_c0=c0 + other.c0;
	COM result_c1=c1 + other.c1;
	COM result_c2=c2 + other.c2;
	COM result_c3=c3 + other.c3;

	return CCurrent(result_c0,result_c1,result_c2,result_c3);
	}

	CCurrent CCurrent::operator-(const CCurrent& other)
	{
	COM result_c0=c0 - other.c0;
	COM result_c1=c1 - other.c1;
	COM result_c2=c2 - other.c2;
	COM result_c3=c3 - other.c3;

	return CCurrent(result_c0,result_c1,result_c2,result_c3);
	}

	CCurrent CCurrent::operator*(const double x)
	{
	COM result_c0=x*CCurrent::c0;
	COM result_c1=x*CCurrent::c1;
	COM result_c2=x*CCurrent::c2;
	COM result_c3=x*CCurrent::c3;

	return CCurrent(result_c0,result_c1,result_c2,result_c3);
	}

	CCurrent CCurrent::operator/(const double x)
	{
	COM result_c0=CCurrent::c0/x;
	COM result_c1=CCurrent::c1/x;
	COM result_c2=CCurrent::c2/x;
	COM result_c3=CCurrent::c3/x;

	return CCurrent(result_c0,result_c1,result_c2,result_c3);
	}

	CCurrent CCurrent::operator*(const COM x)
	{
	COM result_c0=x*CCurrent::c0;
	COM result_c1=x*CCurrent::c1;
	COM result_c2=x*CCurrent::c2;
	COM result_c3=x*CCurrent::c3;

	return CCurrent(result_c0,result_c1,result_c2,result_c3);
	}

	CCurrent CCurrent::operator/(const COM x)
	{
	COM result_c0=(CCurrent::c0)/x;
	COM result_c1=(CCurrent::c1)/x;
	COM result_c2=(CCurrent::c2)/x;
	COM result_c3=(CCurrent::c3)/x;

	return CCurrent(result_c0,result_c1,result_c2,result_c3);
	}

	std::ostream& operator <<(std::ostream& os, const CCurrent& cur)
	{
	os << "("<<cur.c0<< " ; "<<cur.c1<<" , "<<cur.c2<<" , "<<cur.c3<<")";
	return os;
	}

	CCurrent operator * ( double x, CCurrent& m)
	{
	return m*x;
	}

	CCurrent operator * ( COM x, CCurrent& m)
	{
	return m*x;
	}

	CCurrent operator / ( double x, CCurrent& m)
	{
	return m/x;
	}

	CCurrent operator / ( COM x, CCurrent& m)
	{
	return m/x;
	}

	COM CCurrent::dot(HLV p1)
	{
	// Current goes (E,px,py,pz)
	// Vector goes (px,py,pz,E)
	return p1[3]c0-p1[0]c1-p1[1]c2-p1[2]c3;
	}

	COM CCurrent::dot(CCurrent p1)
	{
	return p1.c0c0-p1.c1c1-p1.c2c2-p1.c3c3;
	}

	//Current Functions
	void joi(HLV pout, bool helout, HLV pin, bool helin, current &cur) {
	cur[0]=0.;
	cur[1]=0.;
	cur[2]=0.;
	cur[3]=0.;

	const double sqpop = sqrt(pout.plus());
	const double sqpom = sqrt(pout.minus());
	const COM poperp = pout.x() + COM(0, 1) * pout.y();

	if (helout != helin) {
	throw std::invalid_argument{"Non-matching helicities"};
	} else if (helout == false) { // negative helicity
	if (pin.plus() > pin.minus()) { // if forward
	const double sqpip = sqrt(pin.plus());
	cur[0] = sqpop * sqpip;
	cur[1] = sqpom * sqpip * poperp / abs(poperp);
	cur[2] = -COM(0,1) * cur[1];
	cur[3] = cur[0];
	} else { // if backward
	const double sqpim = sqrt(pin.minus());
	cur[0] = -sqpom * sqpim * poperp / abs(poperp);
	cur[1] = -sqpim * sqpop;
	cur[2] = COM(0,1) * cur[1];
	cur[3] = -cur[0];
	}
	} else { // positive helicity
	if (pin.plus() > pin.minus()) { // if forward
	const double sqpip = sqrt(pin.plus());
	cur[0] = sqpop * sqpip;
	cur[1] = sqpom * sqpip * conj(poperp) / abs(poperp);
	cur[2] = COM(0,1) * cur[1];
	cur[3] = cur[0];
	} else { // if backward
	const double sqpim = sqrt(pin.minus());
	cur[0] = -sqpom * sqpim * conj(poperp) / abs(poperp);
	cur[1] = -sqpim * sqpop;
	cur[2] = -COM(0,1) * cur[1];
	cur[3] = -cur[0];
	}
	}
	}

	CCurrent joi (HLV pout, bool helout, HLV pin, bool helin)
	{
	current cur;
	joi(pout, helout, pin, helin, cur);
	return CCurrent(cur[0],cur[1],cur[2],cur[3]);
	}

	void jio(HLV pin, bool helin, HLV pout, bool helout, current &cur) {
	joi(pout, !helout, pin, !helin, cur);
	}

	CCurrent jio (HLV pin, bool helin, HLV pout, bool helout)
	{
	current cur;
	jio(pin, helin, pout, helout, cur);
	return CCurrent(cur[0],cur[1],cur[2],cur[3]);
	}

	void joo(HLV pi, bool heli, HLV pj, bool helj, current &cur) {

	// Zero our current
	cur[0] = 0.0;
	cur[1] = 0.0;
	cur[2] = 0.0;
	cur[3] = 0.0;
	if (heli!=helj) {
	throw std::invalid_argument{"Non-matching helicities"};
	} else if ( heli == true ) { // If positive helicity swap momenta
	std::swap(pi,pj);
	}

	const double sqpjp = sqrt(pj.plus());
	const double sqpjm = sqrt(pj.minus());
	const double sqpip = sqrt(pi.plus());
	const double sqpim = sqrt(pi.minus());

	const COM piperp = pi.x() + COM(0,1) * pi.y();
	const COM pjperp = pj.x() + COM(0,1) * pj.y();
	const COM phasei = piperp / abs(piperp);
	const COM phasej = pjperp / abs(pjperp);

	cur[0] = sqpim * sqpjm * phasei * conj(phasej) + sqpip * sqpjp;
	cur[1] = sqpim * sqpjp * phasei + sqpip * sqpjm * conj(phasej);
	cur[2] = -COM(0, 1) * (sqpim * sqpjp * phasei - sqpip * sqpjm * conj(phasej));
	cur[3] = -sqpim * sqpjm * phasei * conj(phasej) + sqpip * sqpjp;
	}

	CCurrent joo (HLV pi, bool heli, HLV pj, bool helj)
	{
	current cur;
	joo(pi, heli, pj, helj, cur);
	return CCurrent(cur[0],cur[1],cur[2],cur[3]);
	}
	namespace{
	//@{
	/**
	* @brief Pure Jet FKL Contributions, function to handle all incoming types.
	* @param p1out Outgoing Particle 1.
	* @param p1in Incoming Particle 1.
	* @param p2out Outgoing Particle 2
	* @param p2in Incoming Particle 2
	- * @param aqlineb Bool. Is Backwards quark line an anti-quark line?
	- * @param aqlinef Bool. Is Forwards quark line an anti-quark line?
	*
	* Calculates j_\mu j^\mu.
	- * Handles all possible incoming states.
	+ * Handles all possible incoming states. Helicity doesn't matter since we sum
	+ * over all of them.
	*/
	- double j_j(HLV p1out, HLV p1in, HLV p2out, HLV p2in, bool aqlineb, bool aqlinef){
	- HLV q1=p1in-p1out;
	- HLV q2=-(p2in-p2out);
	+ double j_j(HLV const & p1out, HLV const & p1in,
	+ HLV const & p2out, HLV const & p2in
	+ ){
	+ HLV const q1=p1in-p1out;
	+ HLV const q2=-(p2in-p2out);
	current mj1m,mj1p,mj2m,mj2p;

	// Note need to flip helicities in anti-quark case.
	- joi(p1out,!aqlineb, p1in,!aqlineb, mj1p);
	- joi(p1out, aqlineb, p1in, aqlineb, mj1m);
	- joi(p2out,!aqlinef, p2in,!aqlinef, mj2p);
	- joi(p2out, aqlinef, p2in, aqlinef, mj2m);
	+ joi(p1out, false, p1in, false, mj1p);
	+ joi(p1out, true, p1in, true, mj1m);
	+ joi(p2out, false, p2in, false, mj2p);
	+ joi(p2out, true, p2in, true, mj2m);

	- COM Mmp=cdot(mj1m,mj2p);
	- COM Mmm=cdot(mj1m,mj2m);
	- COM Mpp=cdot(mj1p,mj2p);
	- COM Mpm=cdot(mj1p,mj2m);
	+ COM const Mmp=cdot(mj1m,mj2p);
	+ COM const Mmm=cdot(mj1m,mj2m);
	+ COM const Mpp=cdot(mj1p,mj2p);
	+ COM const Mpm=cdot(mj1p,mj2m);

	- double sst=abs2(Mmm)+abs2(Mmp)+abs2(Mpp)+abs2(Mpm);
	+ double const sst=abs2(Mmm)+abs2(Mmp)+abs2(Mpp)+abs2(Mpm);

	// Multiply by Cf^2
	return HEJ::C_FHEJ::C_F(sst)/(q1.m2()*q2.m2());
	}
	} //anonymous namespace
	double ME_qQ(HLV p1out, HLV p1in, HLV p2out, HLV p2in){
	- return j_j(p1out, p1in, p2out, p2in, false, false);
	+ return j_j(p1out, p1in, p2out, p2in);
	}

	double ME_qQbar(HLV p1out, HLV p1in, HLV p2out, HLV p2in){
	- return j_j(p1out, p1in, p2out, p2in, false, true);
	+ return j_j(p1out, p1in, p2out, p2in);
	}

	double ME_qbarQbar(HLV p1out, HLV p1in, HLV p2out, HLV p2in){
	- return j_j(p1out, p1in, p2out, p2in, true, true);
	+ return j_j(p1out, p1in, p2out, p2in);
	}

	double ME_qg(HLV p1out, HLV p1in, HLV p2out, HLV p2in){
	- return j_j(p1out, p1in, p2out, p2in, false, false)*K_g(p2out, p2in)/HEJ::C_F;
	+ return j_j(p1out, p1in, p2out, p2in)*K_g(p2out, p2in)/HEJ::C_F;
	}

	double ME_qbarg(HLV p1out, HLV p1in, HLV p2out, HLV p2in){
	- return j_j(p1out, p1in, p2out, p2in, true, false)*K_g(p2out, p2in)/(HEJ::C_F);
	+ return j_j(p1out, p1in, p2out, p2in)*K_g(p2out, p2in)/(HEJ::C_F);
	}

	double ME_gg(HLV p1out, HLV p1in, HLV p2out, HLV p2in){
	- return j_j(p1out, p1in, p2out, p2in, false, false)K_g(p1out, p1in)K_g(p2out, p2in)/(HEJ::C_F*HEJ::C_F);
	+ return j_j(p1out, p1in, p2out, p2in)K_g(p1out, p1in)K_g(p2out, p2in)/(HEJ::C_F*HEJ::C_F);
	}
	//@}

	namespace{
	- double juno_j(HLV pg, HLV p1out, HLV p1in, HLV p2out,
	- HLV p2in, bool aqlinea, bool aqlineb){
	+ double juno_j(HLV const & pg, HLV const & p1out,
	+ HLV const & p1in, HLV const & p2out, HLV const & p2in
	+ ){
	// This construction is taking rapidity order: pg > p1out >> p2out
	HLV q1=p1in-p1out; // Top End
	HLV q2=-(p2in-p2out); // Bottom End
	HLV qg=p1in-p1out-pg; // Extra bit post-gluon

	// Note <p1\|eps\|pa> current split into two by gauge choice.
	// See James C's Thesis (p72). <p1\|eps\|pa> -> <p1\|pg><pg\|pa>
	- CCurrent mj1p=joi(p1out,!aqlinea,p1in,!aqlinea);
	- CCurrent mj1m=joi(p1out,aqlinea,p1in,aqlinea);
	- CCurrent jgap=joi(pg,!aqlinea,p1in,!aqlinea);
	- CCurrent jgam=joi(pg,aqlinea,p1in,aqlinea);
	+ CCurrent mj1p=joi(p1out, false, p1in, false);
	+ CCurrent mj1m=joi(p1out, true, p1in, true);
	+ CCurrent jgap=joi(pg, false, p1in, false);
	+ CCurrent jgam=joi(pg, true, p1in, true);

	// Note for function joo(): <p1+\|pg+> = <pg-\|p1->.
	- CCurrent j2gp=joo(p1out,!aqlinea,pg,!aqlinea);
	- CCurrent j2gm=joo(p1out,aqlinea,pg,aqlinea);
	+ CCurrent j2gp=joo(p1out, false, pg, false);
	+ CCurrent j2gm=joo(p1out, true, pg, true);

	- CCurrent mj2p=joi(p2out,!aqlineb,p2in,!aqlineb);
	- CCurrent mj2m=joi(p2out,aqlineb,p2in,aqlineb);
	+ CCurrent mj2p=joi(p2out, false, p2in, false);
	+ CCurrent mj2m=joi(p2out, true, p2in, true);

	// Dot products of these which occur again and again
	COM Mmp=mj1m.dot(mj2p);
	COM Mmm=mj1m.dot(mj2m);
	COM Mpp=mj1p.dot(mj2p);
	COM Mpm=mj1p.dot(mj2m);

	CCurrent p1o(p1out),p2o(p2out),p2i(p2in),qsum(q1+qg),p1i(p1in);

	CCurrent Lmm=(qsum(Mmm)+(-2.mj2m.dot(pg))mj1m+2.mj1m.dot(pg)*mj2m
	+(p2o/pg.dot(p2out) + p2i/pg.dot(p2in))(qg.m2()Mmm/2.))/q1.m2();
	CCurrent Lmp=(qsum(Mmp) + (-2.mj2p.dot(pg))mj1m+2.mj1m.dot(pg)*mj2p
	+(p2o/pg.dot(p2out) + p2i/pg.dot(p2in))(qg.m2()Mmp/2.))/q1.m2();
	CCurrent Lpm=(qsum(Mpm) + (-2.mj2m.dot(pg))mj1p+2.mj1p.dot(pg)*mj2m
	+(p2o/pg.dot(p2out) + p2i/pg.dot(p2in))(qg.m2()Mpm/2.))/q1.m2();
	CCurrent Lpp=(qsum(Mpp) + (-2.mj2p.dot(pg))mj1p+2.mj1p.dot(pg)*mj2p
	+(p2o/pg.dot(p2out) + p2i/pg.dot(p2in))(qg.m2()Mpp/2.))/q1.m2();

	CCurrent U1mm=(jgam.dot(mj2m)j2gm+2.p1o*Mmm)/(p1out+pg).m2();
	CCurrent U1mp=(jgam.dot(mj2p)j2gm+2.p1o*Mmp)/(p1out+pg).m2();
	CCurrent U1pm=(jgap.dot(mj2m)j2gp+2.p1o*Mpm)/(p1out+pg).m2();
	CCurrent U1pp=(jgap.dot(mj2p)j2gp+2.p1o*Mpp)/(p1out+pg).m2();
	CCurrent U2mm=((-1.)j2gm.dot(mj2m)jgam+2.p1iMmm)/(p1in-pg).m2();
	CCurrent U2mp=((-1.)j2gm.dot(mj2p)jgam+2.p1iMmp)/(p1in-pg).m2();
	CCurrent U2pm=((-1.)j2gp.dot(mj2m)jgap+2.p1iMpm)/(p1in-pg).m2();
	CCurrent U2pp=((-1.)j2gp.dot(mj2p)jgap+2.p1iMpp)/(p1in-pg).m2();

	constexpr double cf=HEJ::C_F;

	double amm=cf(2.vre(Lmm-U1mm,Lmm+U2mm))+2.cfcf/3.*vabs2(U1mm+U2mm);
	double amp=cf(2.vre(Lmp-U1mp,Lmp+U2mp))+2.cfcf/3.*vabs2(U1mp+U2mp);
	double apm=cf(2.vre(Lpm-U1pm,Lpm+U2pm))+2.cfcf/3.*vabs2(U1pm+U2pm);
	double app=cf(2.vre(Lpp-U1pp,Lpp+U2pp))+2.cfcf/3.*vabs2(U1pp+U2pp);
	double ampsq=-(amm+amp+apm+app);

	//Divide by t-channels
	ampsq/=q2.m2()*qg.m2();
	ampsq/=16.;

	// Factor of (Cf/Ca) for each quark to match j_j.
	ampsq=(HEJ::C_FHEJ::C_F)/(HEJ::C_A*HEJ::C_A);

	return ampsq;

	}
	}

	//Unordered bits for pure jet
	double ME_unob_qQ (HLV pg, HLV p1out, HLV p1in, HLV p2out, HLV p2in){
	- return juno_j(pg, p1out, p1in, p2out, p2in, false, false);
	+ return juno_j(pg, p1out, p1in, p2out, p2in);
	}

	double ME_unob_qbarQ (HLV pg, HLV p1out, HLV p1in, HLV p2out, HLV p2in){
	- return juno_j(pg, p1out, p1in, p2out, p2in, true, false);
	+ return juno_j(pg, p1out, p1in, p2out, p2in);
	}

	double ME_unob_qQbar (HLV pg, HLV p1out, HLV p1in, HLV p2out, HLV p2in){
	- return juno_j(pg, p1out, p1in, p2out, p2in, false, true);
	+ return juno_j(pg, p1out, p1in, p2out, p2in);
	}

	double ME_unob_qbarQbar (HLV pg, HLV p1out, HLV p1in, HLV p2out, HLV p2in){
	- return juno_j(pg, p1out, p1in, p2out, p2in, true, true);
	+ return juno_j(pg, p1out, p1in, p2out, p2in);
	}

	double ME_unob_qg (HLV pg, HLV p1out, HLV p1in, HLV p2out, HLV p2in){
	- return juno_j(pg, p1out, p1in, p2out, p2in, false, false)*K_g(p2out,p2in)/HEJ::C_F;
	+ return juno_j(pg, p1out, p1in, p2out, p2in)*K_g(p2out,p2in)/HEJ::C_F;
	}

	double ME_unob_qbarg (HLV pg, HLV p1out, HLV p1in, HLV p2out, HLV p2in){
	- return juno_j(pg, p1out, p1in, p2out, p2in, true, false)*K_g(p2out,p2in)/HEJ::C_F;
	+ return juno_j(pg, p1out, p1in, p2out, p2in)*K_g(p2out,p2in)/HEJ::C_F;
	}

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