Typedefs
using	HLV = CLHEP::HepLorentzVector

Functions
double	ME_H_gq (HLV const &ph, HLV const &pa, HLV const &pn, HLV const &pb, double mt, bool inc_bottom, double mb, double vev)
	Square of gq->Hq current contraction. More...

double	ME_juno_jgH (HLV const &pg, HLV const &p1, HLV const &pa, HLV const &ph, HLV const &pb, double mt, bool inc_bottom, double mb, double vev)
	Square of qg -> gqH current contraction. More...

double	ME_H_qQ (HLV const &p1out, HLV const &p1in, HLV const &p2out, HLV const &p2in, HLV const &qH1, HLV const &qH2, double mt, bool include_bottom, double mb, double vev)
	Square of qQ->qHQ Higgs+Jets Scattering Current. More...

double	ME_H_unob_qQ (HLV const &pg, HLV const &p1out, HLV const &p1in, HLV const &p2out, HLV const &p2in, HLV const &qH1, HLV const &qH2, double mt, bool include_bottom, double mb, double vev)
	Square of qQ->qQg Higgs+Jets Unordered b Scattering Current. More...

double	ME_qq (HLV const &p1out, HLV const &p1in, HLV const &p2out, HLV const &p2in)
	Helicity-summed current contraction. More...

double	ME_unob_qq (HLV const &pg, HLV const &p1out, HLV const &p1in, HLV const &p2out, HLV const &p2in)
	Helicity-summed current contraction with unordered gluon emission. More...

double	ME_qqbar_qg (HLV const &pa, HLV const &pb, HLV const &p1, HLV const &p2, HLV const &p3)
	Helicity-summed current contraction with extremal quark/anti-quark emission. More...

double	ME_Cenqqbar_qq (HLV const &pa, HLV const &pb, std::vector< HLV > const &partons, bool qbar_first, std::size_t nabove)
	Square of qq->qQQbarq Pure Jets Central qqbar Scattering Current. More...

std::vector< double >	ME_photon_qQ (const HLV &pa, const HLV &pb, const HLV &p1, const HLV &p2, const HLV &pphoton, ParticleID aptype, ParticleID bptype)
	Square of qQ->qQphoton Photon+Jets Scattering Current. More...

double	ME_photon_qg (const HLV &pa, const HLV &pb, const HLV &p1, const HLV &p2, const HLV &pphoton, ParticleID aptype, ParticleID bptype)
	Square of qg->qgphoton Photon+Jets Scattering Current. More...

std::vector< double >	ME_photon_uno_qQ (const HLV &pa, const HLV &pb, const HLV &p1, const HLV &p2, const HLV &pphoton, const HLV &pg, ParticleID aptype, ParticleID bptype)
	Photon+Jets UNO Contributions. More...

double	ME_photon_uno_qg (const HLV &pa, const HLV &pb, const HLV &pg, const HLV &p1, const HLV &p2, const HLV &pphoton, ParticleID aptype, ParticleID bptype)
	Photon+Jets Unordered Contribution, unordered same to Photon side. More...

std::vector< double >	ME_photon_Exqqbar_gq (const HLV &pa, const HLV &pb, const HLV &pq, const HLV &pqbar, const HLV &p2, const HLV &pphoton, ParticleID qptype, ParticleID bptype)
	Photon+Jets Extremal QQBAR Contributions. More...

double	ME_photon_Exqqbar_gg (const HLV &pa, const HLV &pb, const HLV &pq, const HLV &pqbar, const HLV &p2, const HLV &pphoton, ParticleID qptype)

std::vector< double >	ME_photon_Cenqqbar_qq (const HLV &pa, const HLV &pb, const HLV &pphoton, std::vector< HLV > const &partons, const bool qbar_first, const int nabove, ParticleID aptype, ParticleID bptype, ParticleID qptype)
	Photon+Jets central qqbar, qq initiated. More...

std::vector< double >	ME_photon_Cenqqbar_gq (const HLV &pa, const HLV &pb, const HLV &pphoton, std::vector< HLV > const &partons, const bool qbar_first, const int nabove, ParticleID bptype, ParticleID qptype)
	Photon+Jets central qqbar, gq initiated. More...

double	ME_photon_Cenqqbar_gg (const HLV &pa, const HLV &pb, const HLV &pphoton, std::vector< HLV > const &partons, const bool qbar_first, const int nabove, ParticleID qptype)
	Photon+Jets central qqbar, gg initiated. More...

double	ME_W_qQ (HLV const &p1out, HLV const &plbar, HLV const &pl, HLV const &p1in, HLV const &p2out, HLV const &p2in, ParticleProperties const &wprop)
	Square of qQ->qenuQ W+Jets Scattering Current. More...

double	ME_Wuno_qQ (HLV const &p1out, HLV const &p1in, HLV const &p2out, HLV const &p2in, HLV const &pg, HLV const &plbar, HLV const &pl, ParticleProperties const &wprop)
	W+uno same leg. More...

double	ME_W_unob_qQ (HLV const &p1out, HLV const &p1in, HLV const &p2out, HLV const &p2in, HLV const &pg, HLV const &plbar, HLV const &pl, ParticleProperties const &wprop)
	qQg Wjets Unordered backwards opposite leg to W More...

double	ME_WExqqbar_qqbarQ (HLV const &pgin, HLV const &pqbarout, HLV const &plbar, HLV const &pl, HLV const &pqout, HLV const &p2out, HLV const &p2in, ParticleProperties const &wprop)
	W+Extremal qqbar. qqbar+Q. More...

double	ME_W_Exqqbar_QQq (HLV const &pa, HLV const &pb, HLV const &p1, HLV const &pq, HLV const &pqbar, HLV const &plbar, HLV const &pl, bool aqlinepa, ParticleProperties const &wprop)
	W+Extremal qqbar. gg->qqbarg. qqbar on forwards leg, W emission backwards leg. More...

double	ME_WCenqqbar_qq (HLV const &pa, HLV const &pb, HLV const &pl, HLV const &plbar, std::vector< HLV > const &partons, bool aqlinepa, bool aqlinepb, bool qbar_first, int nabove, ParticleProperties const &wprop)
	W+Jets qqbarCentral. qqbar W emission. More...

double	ME_W_Cenqqbar_qq (HLV pa, HLV pb, HLV pl, HLV plbar, std::vector< HLV > partons, bool aqlinepa, bool aqlinepb, bool qbar_first, int nabove, int nbelow, bool forwards, ParticleProperties const &wprop)
	W+Jets qqbarCentral. W emission from backwards leg. More...

std::vector< double >	ME_WW_qQ (const HLV &p1out, const HLV &pl1bar, const HLV &pl1, const HLV &p1in, const HLV &p2out, const HLV &pl2bar, const HLV &pl2, const HLV &p2in, ParticleProperties const &wprop)
	Current contractions for qQ -> qQWW with leptonically decaying same-sign W. More...

std::vector< double >	ME_WW_qbarQ (const HLV &p1out, const HLV &pl1bar, const HLV &pl1, const HLV &p1in, const HLV &p2out, const HLV &pl2bar, const HLV &pl2, const HLV &p2in, ParticleProperties const &wprop)
	Current contractions for qbarQ -> qbarQWW with leptonically decaying same-sign W. More...

std::vector< double >	ME_WW_qQbar (const HLV &p1out, const HLV &pl1bar, const HLV &pl1, const HLV &p1in, const HLV &p2out, const HLV &pl2bar, const HLV &pl2, const HLV &p2in, ParticleProperties const &wprop)
	Current contractions for qQbar -> qQbarWW with leptonically decaying same-sign W. More...

std::vector< double >	ME_WW_qbarQbar (const HLV &p1out, const HLV &pl1bar, const HLV &pl1, const HLV &p1in, const HLV &p2out, const HLV &pl2bar, const HLV &pl2, const HLV &p2in, ParticleProperties const &wprop)
	Current contractions for qbarQbar -> qbarQbarWW with leptonically decaying same-sign W. More...

std::vector< double >	ME_Z_qQ (const HLV &pa, const HLV &pb, const HLV &p1, const HLV &p2, const HLV &plbar, const HLV &pl, ParticleID ltype, ParticleID aptype, ParticleID bptype, ParticleProperties const &zprop, double stw2, double ctw)
	Square of qQ->qQlbarl- Z+Jets Scattering Current. More...

double	ME_Z_qg (const HLV &pa, const HLV &pb, const HLV &p1, const HLV &p2, const HLV &plbar, const HLV &pl, ParticleID aptype, ParticleID bptype, ParticleID ltype, ParticleProperties const &zprop, double stw2, double ctw)
	Square of qg->qglbarl- Z+Jets Scattering Current. More...

std::vector< double >	ME_Zuno_qQ (const HLV &pa, const HLV &pb, const HLV &pg, const HLV &p1, const HLV &p2, const HLV &plbar, const HLV &pl, ParticleID aptype, ParticleID bptype, ParticleID ltype, ParticleProperties const &zprop, double stw2, double ctw)
	Square of qQ->gqQlbarl- Z+Jets Unordered Current. More...

double	ME_Zuno_qg (const HLV &pa, const HLV &pb, const HLV &pg, const HLV &p1, const HLV &p2, const HLV &plbar, const HLV &pl, ParticleID aptype, ParticleID bptype, ParticleID ltype, ParticleProperties const &zprop, double stw2, double ctw)
	Square of qg->gqglbarl- Z+Jets Unordered Current. More...

std::vector< double >	ME_ZExqqbar_gq (const HLV &pa, const HLV &pb, const HLV &pq, const HLV &pqbar, const HLV &p3, const HLV &plbar, const HLV &pl, ParticleID qptype, ParticleID bptype, ParticleID ltype, ParticleProperties const &zprop, const double stw2, const double ctw)
	Square of gQ->qqbarQlbarl- Z+jets extremal qqbar current. More...

double	ME_ZExqqbar_gg (const HLV &pa, const HLV &pb, const HLV &pq, const HLV &pqbar, const HLV &p3, const HLV &plbar, const HLV &pl, ParticleID qptype, ParticleID ltype, ParticleProperties const &zprop, double stw2, double ctw)
	Square of gg->qqbarglbarl- Z+Jets extremal qqbar current. More...

std::vector< double >	ME_ZCenqqbar_qq (const HLV &pa, const HLV &pb, const HLV &plbar, const HLV &pl, std::vector< HLV > const &partons, const bool qbar_first, const int nabove, ParticleID aptype, ParticleID bptype, ParticleID qptype, ParticleID ltype, ParticleProperties const &zprop, const double stw2, const double ctw)
	Z+Jets central qqbar, qq initiated. More...

std::vector< double >	ME_ZCenqqbar_gq (const HLV &pa, const HLV &pb, const HLV &plbar, const HLV &pl, std::vector< HLV > const &partons, const bool qbar_first, const int nabove, ParticleID bptype, ParticleID qptype, ParticleID ltype, ParticleProperties const &zprop, const double stw2, const double ctw)
	Z+Jets central qqbar, gq initiated. More...

double	ME_ZCenqqbar_gg (const HLV &pa, const HLV &pb, const HLV &plbar, const HLV &pl, std::vector< HLV > const &partons, const bool qbar_first, const int nabove, ParticleID qptype, ParticleID ltype, ParticleProperties const &zprop, const double stw2, const double ctw)
	Z+Jets central qqbar, gg initiated. More...

Typedef Documentation

◆ HLV

typedef CLHEP::HepLorentzVector HEJ::currents::HLV

Function Documentation

◆ ME_Cenqqbar_qq()

double HEJ::currents::ME_Cenqqbar_qq	(	HLV const &	pa,
		HLV const &	pb,
		std::vector< HLV > const &	partons,
		bool	qbar_first,
		std::size_t	nabove
	)

Square of qq->qQQbarq Pure Jets Central qqbar Scattering Current.

Parameters

pa	Momentum of incoming leg a
pb	Momentum of incoming leg b
partons	vector of outgoing partons
qbar_first	Is anti-quark further back in rapidity than quark (qqbar pair)
nabove	Number of gluons emitted above qqbar pair (back in rap)

Returns: Square of the current contractions for qq->q+QQbar+q

◆ ME_H_gq()

double HEJ::currents::ME_H_gq	(	HLV const &	ph,
		HLV const &	pa,
		HLV const &	pn,
		HLV const &	pb,
		double	mt,
		bool	inc_bottom,
		double	mb,
		double	vev
	)

Square of gq->Hq current contraction.

Parameters

ph	Outgoing Higgs boson momentum
pa	Incoming gluon momentum
pn	Momentum of outgoing particle in FKL current
pb	Momentum of incoming particle in FKL current
mt	top mass (inf or value)
inc_bottom	whether to include bottom mass effects (true) or not (false)
mb	bottom mass (value)
vev	Higgs vacuum expectation value

Calculates helicity-averaged \(\| \epsilon_\mu V_H^{\mu\nu} j_\nu \|^2\). See eq:S_gf_Hf in developer manual

◆ ME_H_qQ()

double HEJ::currents::ME_H_qQ	(	HLV const &	p1out,
		HLV const &	p1in,
		HLV const &	p2out,
		HLV const &	p2in,
		HLV const &	qH1,
		HLV const &	qH2,
		double	mt,
		bool	include_bottom,
		double	mb,
		double	vev
	)

Square of qQ->qHQ Higgs+Jets Scattering Current.

Parameters

p1out	Momentum of final state quark
p1in	Momentum of initial state quark
p2out	Momentum of final state quark
p2in	Momentum of intial state quark
qH1	Momentum of t-channel propagator before Higgs
qH2	Momentum of t-channel propagator after Higgs
mt	Top quark mass
include_bottom	Specifies whether bottom corrections are included
mb	Bottom quark mass
vev	Vacuum expectation value

Returns: Square of the current contractions for qQ->qQ

q~p1 Q~p2 (i.e. ALWAYS p1 for quark, p2 for quark) should be called with qH1 meant to be contracted with p2 in first part of vertex (i.e. if Q is backward, qH1 is forward)

◆ ME_H_unob_qQ()

double HEJ::currents::ME_H_unob_qQ	(	HLV const &	pg,
		HLV const &	p1out,
		HLV const &	p1in,
		HLV const &	p2out,
		HLV const &	p2in,
		HLV const &	qH1,
		HLV const &	qH2,
		double	mt,
		bool	include_bottom,
		double	mb,
		double	vev
	)

Square of qQ->qQg Higgs+Jets Unordered b Scattering Current.

Parameters

pg	Momentum of unordered b gluon
p1out	Momentum of final state quark
p1in	Momentum of initial state quark
p2out	Momentum of final state quark
p2in	Momentum of intial state quark
qH1	Momentum of t-channel propagator before Higgs
qH2	Momentum of t-channel propagator after Higgs
mt	Top quark mass
include_bottom	Specifies whether bottom corrections are included
mb	Bottom quark mass
vev	Vacuum expectation value

Returns: Square of the current contractions for qQ->qQg

This construction is taking rapidity order: p1out >> p2out > pg

◆ ME_juno_jgH()

double HEJ::currents::ME_juno_jgH	(	HLV const &	pg,
		HLV const &	p1,
		HLV const &	pa,
		HLV const &	ph,
		HLV const &	pb,
		double	mt,
		bool	inc_bottom,
		double	mb,
		double	vev
	)

Square of qg -> gqH current contraction.

Parameters

pg	Outgoing (unordered) gluon momentum
p1	Outgoing quark momentum
pa	Incoming quark momentum
ph	Outgoing Higgs boson momentum
pb	Incoming gluon momentum
mt	top mass (inf or value)
inc_bottom	whether to include bottom mass effects (true) or not (false)
mb	bottom mass (value)
vev	Higgs vacuum expectation value

Calculates helicity-averaged \(\| j_{{\rm uno} \mu} V_H^{\mu\nu} \epsilon_\nu \|^2\). See eq:S_gf_Hf in developer manual

◆ ME_photon_Cenqqbar_gg()

double HEJ::currents::ME_photon_Cenqqbar_gg	(	const HLV &	pa,
		const HLV &	pb,
		const HLV &	pphoton,
		std::vector< HLV > const &	partons,
		const bool	qbar_first,
		const int	nabove,
		ParticleID	qptype
	)

Photon+Jets central qqbar, gg initiated.

Parameters

pa	Momentum of initial state gluon a
pb	Momentum of initial state gluon b
pphoton	Momentum of final state photon
partons	Vector of outgoing parton momenta
qbar_first	Ordering of the qqbar pair (true: qbar-q, false: q-qbar)
nabove	Number of lipatov vertices "above" qqbar pair
qptype	Type of quark in qqbar pair

Returns: Square of the current contractions for gg-> g QQbar g photon - scattering

This returns the square of the current contraction in gg->g QQbar g scattering with an emission of a Photon.

◆ ME_photon_Cenqqbar_gq()

std::vector<double> HEJ::currents::ME_photon_Cenqqbar_gq	(	const HLV &	pa,
		const HLV &	pb,
		const HLV &	pphoton,
		std::vector< HLV > const &	partons,
		const bool	qbar_first,
		const int	nabove,
		ParticleID	bptype,
		ParticleID	qptype
	)

Photon+Jets central qqbar, gq initiated.

Parameters

pa	Momentum of initial state gluon a
pb	Momentum of initial state quark b
pphoton	Momentum of final state photon
partons	Vector of outgoing parton momenta
qbar_first	Ordering of the qqbar pair (true: qbar-q, false: q-qbar)
nabove	Number of lipatov vertices "above" qqbar pair
bptype	Initial particle b type
qptype	Type of quark in qqbar pair

Returns: Square of the current contractions for gq->g QQbar q photon - scattering

This returns the squares of the current contractions in gq->g QQbar q scattering with an emission of a Photon.

◆ ME_photon_Cenqqbar_qq()

std::vector<double> HEJ::currents::ME_photon_Cenqqbar_qq	(	const HLV &	pa,
		const HLV &	pb,
		const HLV &	pphoton,
		std::vector< HLV > const &	partons,
		const bool	qbar_first,
		const int	nabove,
		ParticleID	aptype,
		ParticleID	bptype,
		ParticleID	qptype
	)

Photon+Jets central qqbar, qq initiated.

Parameters

pa	Momentum of initial state quark a
pb	Momentum of initial state quark b
pphoton	Momentum of final state photon
partons	Vector of outgoing parton momenta
qbar_first	Ordering of the qqbar pair (true: qbar-q, false: q-qbar)
nabove	Number of lipatov vertices "above" qqbar pair
aptype	Initial particle a type
bptype	Initial particle b type
qptype	Type of quark in qqbar pair

Returns: Square of the current contractions for qq->q QQbar q photon - scattering

This returns the squares of the current contractions in qq->q QQbar q scattering with an emission of a Photon.

◆ ME_photon_Exqqbar_gg()

double HEJ::currents::ME_photon_Exqqbar_gg	(	const HLV &	pa,
		const HLV &	pb,
		const HLV &	pq,
		const HLV &	pqbar,
		const HLV &	p2,
		const HLV &	pphoton,
		ParticleID	qptype
	)

Parameters

pa	Momentum of initial state gluon splitting into qqbar
pb	Momentum of initial state gluon b
pq	Momentum of final state quark
pqbar	Momentum of final state anti-quark
p2	Momentum of final state gluon/parton b (from the FKL current)
pphoton	Momentum of final state photon
qptype	Type of quark in qqbar pair

Returns: Square of the current contractions for gg->qqbar g photon

This returns the square of the current contractions in gg->qqbarg scattering with an emission of a Photon.

◆ ME_photon_Exqqbar_gq()

std::vector<double> HEJ::currents::ME_photon_Exqqbar_gq	(	const HLV &	pa,
		const HLV &	pb,
		const HLV &	pq,
		const HLV &	pqbar,
		const HLV &	p2,
		const HLV &	pphoton,
		ParticleID	qptype,
		ParticleID	bptype
	)

Photon+Jets Extremal QQBAR Contributions.

Photon+Jets extremal qqbar contribution

Parameters

pa	Momentum of initial state gluon
pb	Momentum of initial state parton b
pq	Outgoing quark from qqbar pair
pqbar	Outgoing anti-quark from qqbar pair
p2	Outgoing parton from the initial state parton line b
pphoton	Outgoing photon momentum
qptype	Type of quark in qqbar pair
bptype	Initial particle b type

Returns: Square of the current contractions for gQ -> qqbar Q photon

This returns the square of the current contractions in gQ->qqbarQ scattering with an emission of a Photon

◆ ME_photon_qg()

double HEJ::currents::ME_photon_qg	(	const HLV &	pa,
		const HLV &	pb,
		const HLV &	p1,
		const HLV &	p2,
		const HLV &	pphoton,
		ParticleID	aptype,
		ParticleID	bptype
	)

Square of qg->qgphoton Photon+Jets Scattering Current.

Parameters

pa	Momentum of initial state quark
pb	Momentum of initial state gluon
p1	Momentum of final state quark
p2	Momentum of final state gluon
pphoton	Momentum of final state photon
aptype	Initial particle 1 type
bptype	Initial particle 2 type

Returns: Square of the current contractions for qg->qgphoton Scattering

This returns the square of the current contractions in qg->qg scattering with an emission of a photon.

◆ ME_photon_qQ()

std::vector<double> HEJ::currents::ME_photon_qQ	(	const HLV &	pa,
		const HLV &	pb,
		const HLV &	p1,
		const HLV &	p2,
		const HLV &	pphoton,
		ParticleID	aptype,
		ParticleID	bptype
	)

Square of qQ->qQphoton Photon+Jets Scattering Current.

Parameters

pa	Momentum of initial state quark
pb	Momentum of initial state quark
p1	Momentum of final state quark
p2	Momentum of final state quark
pphoton	Momentum of final state photon
aptype	Initial particle 1 type
bptype	Initial particle 2 type

Returns: Square of the current contractions for qQ->qQphoton Scattering

This returns the square of the current contractions in qQ->qQ scattering with an emission of a photon.

◆ ME_photon_uno_qg()

double HEJ::currents::ME_photon_uno_qg	(	const HLV &	pa,
		const HLV &	pb,
		const HLV &	pg,
		const HLV &	p1,
		const HLV &	p2,
		const HLV &	pphoton,
		ParticleID	aptype,
		ParticleID	bptype
	)

Photon+Jets Unordered Contribution, unordered same to Photon side.

Parameters

pa	Incoming Particle 1 (photon and unordered emission)
pb	Incoming Particle 2
p1	Outgoing Particle 1 (photon emission and unordered)
p2	Outgoing Particle 2
pg	Unordered Gluon momentum
pphoton	Outgoing Photon momentum
aptype	Initial particle 1 type
bptype	Initial particle 2 type

Returns: Square of the current contractions for qg -> photon g qg

This returns the square of the current contractions in qQ->qQg scattering with an emission of a photon.

◆ ME_photon_uno_qQ()

std::vector<double> HEJ::currents::ME_photon_uno_qQ	(	const HLV &	pa,
		const HLV &	pb,
		const HLV &	p1,
		const HLV &	p2,
		const HLV &	pphoton,
		const HLV &	pg,
		ParticleID	aptype,
		ParticleID	bptype
	)

Photon+Jets UNO Contributions.

Photon+Jets Unordered Contribution, unordered opposite to Photon side

Parameters

pa	Incoming Particle 1 (photon emission)
pb	Incoming Particle 2 (unorderd emission)
p1	Outgoing Particle 1 (photon emission)
p2	Outgoing Particle 2 (unordered emission)
pg	Unordered Gluon momentum
pphoton	Outgoing Photon momentum
aptype	Initial particle 1 type
bptype	Initial particle 2 type

Returns: Square of the current contractions for qQ -> photon qQ g

This returns the square of the current contractions in qQ->qQg scattering with an emission of a photon.

◆ ME_qq()

double HEJ::currents::ME_qq	(	HLV const &	p1out,
		HLV const &	p1in,
		HLV const &	p2out,
		HLV const &	p2in
	)

Helicity-summed current contraction.

Parameters

p1out	Final-state momentum of first current
p1in	Initial-state momentum of first current
p2out	Final-state momentum of second current
p2in	Initial-state momentum of second current

Returns: Current contractions

◆ ME_qqbar_qg()

double HEJ::currents::ME_qqbar_qg	(	HLV const &	pa,
		HLV const &	pb,
		HLV const &	p1,
		HLV const &	p2,
		HLV const &	p3
	)

Helicity-summed current contraction with extremal quark/anti-quark emission.

Parameters

pa	Initial-state momentum of gluon splitting into qqbar
pb	Initial-state momentum of second current
p1	More extremal (anti-)quark from splitting momentum
p2	Less extremal (anti-)quark from splitting momentum
p3	Final-state momentum of second current

Returns: Current contraction

◆ ME_unob_qq()

double HEJ::currents::ME_unob_qq	(	HLV const &	pg,
		HLV const &	p1out,
		HLV const &	p1in,
		HLV const &	p2out,
		HLV const &	p2in
	)

Helicity-summed current contraction with unordered gluon emission.

Parameters

pg	Momentum of gluon emitted off first current
p1out	Final-state momentum of first current
p1in	Initial-state momentum of first current
p2out	Final-state momentum of second current
p2in	Initial-state momentum of second current

Returns: Current contraction

◆ ME_W_Cenqqbar_qq()

double HEJ::currents::ME_W_Cenqqbar_qq	(	HLV	pa,
		HLV	pb,
		HLV	pl,
		HLV	plbar,
		std::vector< HLV >	partons,
		bool	aqlinepa,
		bool	aqlinepb,
		bool	qbar_first,
		int	nabove,
		int	nbelow,
		bool	forwards,
		ParticleProperties const &	wprop
	)

W+Jets qqbarCentral. W emission from backwards leg.

Parameters

pa	Momentum of initial state particle a
pb	Momentum of initial state particle b
pl	Momentum of final state lepton
plbar	Momentum of final state anti-lepton
partons	outgoing parton momenta
aqlinepa	True= pa is anti-quark
aqlinepb	True= pb is anti-quark
qbar_first	Ordering of the qqbar pair (true: qbar-q, false: q-qbar)
nabove	Number of lipatov vertices "above" qqbar pair
nbelow	Number of lipatov vertices "below" qqbar pair
forwards	Swap to emission off front leg TODO: remove so args can be const
wprop	Mass and width of the W boson

Returns: Square of the current contractions for qq>qQQbarWq

Calculates the square of the current contractions with extremal qqbar pair production. This is calculated through the use of crossing symmetry.

◆ ME_W_Exqqbar_QQq()

double HEJ::currents::ME_W_Exqqbar_QQq	(	HLV const &	pa,
		HLV const &	pb,
		HLV const &	p1,
		HLV const &	pq,
		HLV const &	pqbar,
		HLV const &	plbar,
		HLV const &	pl,
		bool	aqlinepa,
		ParticleProperties const &	wprop
	)

W+Extremal qqbar. gg->qqbarg. qqbar on forwards leg, W emission backwards leg.

Parameters

pa	Momentum of initial state (anti-)quark
pb	Momentum of initial state gluon
p1	Momentum of final state (anti-)quark (after W emission)
pq	Momentum of final state quark
pqbar	Momentum of final state anti-quark
plbar	Momentum of final state anti-lepton
pl	Momentum of final state lepton
aqlinepa	Is opposite extremal leg to qqbar a quark or antiquark line
wprop	Mass and width of the W boson

Returns: Square of the current contractions for gq->qqbarqW

Calculates the square of the current contractions with extremal qqbar pair production. This is calculated via current contraction of existing currents. Assumes qqbar split from forwards leg, W emission from backwards leg. Switch input (pa<->pb, p1<->pn) if calculating forwards qqbar.

◆ ME_W_qQ()

double HEJ::currents::ME_W_qQ	(	HLV const &	p1out,
		HLV const &	plbar,
		HLV const &	pl,
		HLV const &	p1in,
		HLV const &	p2out,
		HLV const &	p2in,
		ParticleProperties const &	wprop
	)

Square of qQ->qenuQ W+Jets Scattering Current.

Parameters

p1out	Momentum of final state quark
plbar	Momentum of final state anti-lepton
pl	Momentum of final state lepton
p1in	Momentum of initial state quark
p2out	Momentum of final state quark
p2in	Momentum of intial state quark
wprop	Mass and width of the W boson

Returns: Square of the current contractions for qQ->qenuQ

This returns the square of the current contractions in qQ->qenuQ scattering with an emission of a W Boson off the quark q.

◆ ME_W_unob_qQ()

double HEJ::currents::ME_W_unob_qQ	(	HLV const &	p1out,
		HLV const &	p1in,
		HLV const &	p2out,
		HLV const &	p2in,
		HLV const &	pg,
		HLV const &	plbar,
		HLV const &	pl,
		ParticleProperties const &	wprop
	)

qQg Wjets Unordered backwards opposite leg to W

Parameters

p1out	Momentum of final state quark a
p1in	Momentum of initial state quark a
p2out	Momentum of final state quark b
p2in	Momentum of intial state quark b
pg	Momentum of final state unordered gluon
plbar	Momentum of final state anti-lepton
pl	Momentum of final state lepton
wprop	Mass and width of the W boson

Returns: Square of the current contractions for qQ->qQg Scattering

This returns the square of the current contractions in qQg->qQg scattering with an emission of a W Boson.

◆ ME_WCenqqbar_qq()

double HEJ::currents::ME_WCenqqbar_qq	(	HLV const &	pa,
		HLV const &	pb,
		HLV const &	pl,
		HLV const &	plbar,
		std::vector< HLV > const &	partons,
		bool	aqlinepa,
		bool	aqlinepb,
		bool	qbar_first,
		int	nabove,
		ParticleProperties const &	wprop
	)

W+Jets qqbarCentral. qqbar W emission.

Parameters

pa	Momentum of initial state particle a
pb	Momentum of initial state particle b
pl	Momentum of final state lepton
plbar	Momentum of final state anti-lepton
partons	Vector of outgoing parton momenta
aqlinepa	True= pa is anti-quark
aqlinepb	True= pb is anti-quark
qbar_first	Ordering of the qqbar pair (true: qbar-q, false: q-qbar)
nabove	Number of lipatov vertices "above" qqbar pair
wprop	Mass and width of the W boson

Returns: Square of the current contractions for qq>qQQbarWq

Calculates the square of the current contractions with extremal qqbar pair production. This is calculated through the use of crossing symmetry.

◆ ME_WExqqbar_qqbarQ()

double HEJ::currents::ME_WExqqbar_qqbarQ	(	HLV const &	pgin,
		HLV const &	pqbarout,
		HLV const &	plbar,
		HLV const &	pl,
		HLV const &	pqout,
		HLV const &	p2out,
		HLV const &	p2in,
		ParticleProperties const &	wprop
	)

W+Extremal qqbar. qqbar+Q.

Parameters

pgin	Momentum of initial state gluon
pqbarout	Momentum of final state anti-quark a
plbar	Momentum of final state anti-lepton
pl	Momentum of final state lepton
pqout	Momentum of final state quark a
p2out	Momentum of initial state anti-quark b
p2in	Momentum of final state gluon b
wprop	Mass and width of the W boson

Returns: Square of the current contractions for ->qqbarQ

Calculates the square of the current contractions with extremal qqbar pair production. This is calculated through the use of crossing symmetry.

◆ ME_Wuno_qQ()

double HEJ::currents::ME_Wuno_qQ	(	HLV const &	p1out,
		HLV const &	p1in,
		HLV const &	p2out,
		HLV const &	p2in,
		HLV const &	pg,
		HLV const &	plbar,
		HLV const &	pl,
		ParticleProperties const &	wprop
	)

W+uno same leg.

Parameters

p1out	Momentum of final state quark a
p1in	Momentum of initial state quark a
p2out	Momentum of final state quark b
p2in	Momentum of intial state quark b
pg	Momentum of final state unordered gluon
plbar	Momentum of final state anti-lepton
pl	Momentum of final state lepton
wprop	Mass and width of the W boson

Returns: Square of the current contractions for qQ->qQg

This returns the square of the current contractions in gqQ->gqQ scattering with an emission of a W Boson.

◆ ME_WW_qbarQ()

std::vector<double> HEJ::currents::ME_WW_qbarQ	(	const HLV &	p1out,
		const HLV &	pl1bar,
		const HLV &	pl1,
		const HLV &	p1in,
		const HLV &	p2out,
		const HLV &	pl2bar,
		const HLV &	pl2,
		const HLV &	p2in,
		ParticleProperties const &	wprop
	)

Current contractions for qbarQ -> qbarQWW with leptonically decaying same-sign W.

Parameters

p1out	Momentum of final state anti-quark
pl1bar	Momentum of final state anti-lepton from first W decay
pl1	Momentum of final state lepton from first W decay
p1in	Momentum of initial state anti-quark
p2out	Momentum of final state quark
pl2bar	Momentum of final state anti-lepton from second W decay
pl2	Momentum of final state lepton from second W decay
p2in	Momentum of initial state quark
wprop	Mass and width of the W boson

Returns: Square of the current contractions for qbarQ -> qQWW

This returns the square of the current contractions in qbarQ->qbarQ WW scattering, where the two W bosons have the same charge and decay leptonically.

◆ ME_WW_qbarQbar()

std::vector<double> HEJ::currents::ME_WW_qbarQbar	(	const HLV &	p1out,
		const HLV &	pl1bar,
		const HLV &	pl1,
		const HLV &	p1in,
		const HLV &	p2out,
		const HLV &	pl2bar,
		const HLV &	pl2,
		const HLV &	p2in,
		ParticleProperties const &	wprop
	)

Current contractions for qbarQbar -> qbarQbarWW with leptonically decaying same-sign W.

Parameters

p1out	Momentum of first final state anti-quark
pl1bar	Momentum of final state anti-lepton from first W decay
pl1	Momentum of final state lepton from first W decay
p1in	Momentum of first initial state anti-quark
p2out	Momentum of second final state anti-quark
pl2bar	Momentum of final state anti-lepton from second W decay
pl2	Momentum of final state lepton from second W decay
p2in	Momentum of second initial state anti-quark
wprop	Mass and width of the W boson

Returns: Square of the current contractions for qbarQbar -> qbarQbarWW

This returns the square of the current contractions in qbarQbar->qbarQbar WW scattering, where the two W bosons have the same charge and decay leptonically.

◆ ME_WW_qQ()

std::vector<double> HEJ::currents::ME_WW_qQ	(	const HLV &	p1out,
		const HLV &	pl1bar,
		const HLV &	pl1,
		const HLV &	p1in,
		const HLV &	p2out,
		const HLV &	pl2bar,
		const HLV &	pl2,
		const HLV &	p2in,
		ParticleProperties const &	wprop
	)

Current contractions for qQ -> qQWW with leptonically decaying same-sign W.

Parameters

p1out	Momentum of first final state quark
pl1bar	Momentum of final state anti-lepton from first W decay
pl1	Momentum of final state lepton from first W decay
p1in	Momentum of first initial state quark
p2out	Momentum of second final state quark
pl2bar	Momentum of final state anti-lepton from second W decay
pl2	Momentum of final state lepton from second W decay
p2in	Momentum of second initial state quark
wprop	Mass and width of the W boson

Returns: Square of the current contractions for qQ -> qQWW

This returns the square of the current contractions in qQ->qQ WW scattering, where the two W bosons have the same charge and decay leptonically.

◆ ME_WW_qQbar()

std::vector<double> HEJ::currents::ME_WW_qQbar	(	const HLV &	p1out,
		const HLV &	pl1bar,
		const HLV &	pl1,
		const HLV &	p1in,
		const HLV &	p2out,
		const HLV &	pl2bar,
		const HLV &	pl2,
		const HLV &	p2in,
		ParticleProperties const &	wprop
	)

Current contractions for qQbar -> qQbarWW with leptonically decaying same-sign W.

Parameters

p1out	Momentum of final state quark
pl1bar	Momentum of final state anti-lepton from first W decay
pl1	Momentum of final state lepton from first W decay
p1in	Momentum of initial state quark
p2out	Momentum of final state anti-quark
pl2bar	Momentum of final state anti-lepton from second W decay
pl2	Momentum of final state lepton from second W decay
p2in	Momentum of initial state anti-quark
wprop	Mass and width of the W boson

Returns: Square of the current contractions for qQbar -> qQbarWW

This returns the square of the current contractions in qQbar->qQbar WW scattering, where the two W bosons have the same charge and decay leptonically.

◆ ME_Z_qg()

double HEJ::currents::ME_Z_qg	(	const HLV &	pa,
		const HLV &	pb,
		const HLV &	p1,
		const HLV &	p2,
		const HLV &	plbar,
		const HLV &	pl,
		ParticleID	aptype,
		ParticleID	bptype,
		ParticleID	ltype,
		ParticleProperties const &	zprop,
		double	stw2,
		double	ctw
	)

Square of qg->qglbarl- Z+Jets Scattering Current.

Parameters

pa	Momentum of initial state quark
pb	Momentum of initial state gluon
p1	Momentum of final state quark
p2	Momentum of final state gluon
plbar	Momentum of final state anti-lepton
pl	Momentum of final state lepton
aptype	Initial particle 1 type
bptype	Initial particle 2 type
ltype	Final-state lepton type
zprop	Mass and width of the Z boson
stw2	Value of sin(theta_w)^2
ctw	Value of cos(theta_w)

Returns: Square of the current contractions for qg->qglbarl- Scattering

This returns the square of the current contractions in qg->qg scattering with an emission of a Z Boson.

◆ ME_Z_qQ()

std::vector<double> HEJ::currents::ME_Z_qQ	(	const HLV &	pa,
		const HLV &	pb,
		const HLV &	p1,
		const HLV &	p2,
		const HLV &	plbar,
		const HLV &	pl,
		ParticleID	ltype,
		ParticleID	aptype,
		ParticleID	bptype,
		ParticleProperties const &	zprop,
		double	stw2,
		double	ctw
	)

Square of qQ->qQlbarl- Z+Jets Scattering Current.

Parameters

pa	Momentum of initial state quark
pb	Momentum of initial state quark
p1	Momentum of final state quark
p2	Momentum of final state quark
plbar	Momentum of final state anti-lepton
pl	Momentum of final state lepton
aptype	Initial particle 1 type
bptype	Initial particle 2 type
ltype	Final-state lepton type
zprop	Mass and width of the Z boson
stw2	Value of sin(theta_w)^2
ctw	Value of cos(theta_w)

Returns: Square of the current contractions for qQ->qQlbarl- Scattering

This returns the square of the current contractions in qQ->qQ scattering with an emission of a Z Boson.

◆ ME_ZCenqqbar_gg()

double HEJ::currents::ME_ZCenqqbar_gg	(	const HLV &	pa,
		const HLV &	pb,
		const HLV &	plbar,
		const HLV &	pl,
		std::vector< HLV > const &	partons,
		const bool	qbar_first,
		const int	nabove,
		ParticleID	qptype,
		ParticleID	ltype,
		ParticleProperties const &	zprop,
		const double	stw2,
		const double	ctw
	)

Z+Jets central qqbar, gg initiated.

Parameters

pa	Momentum of initial state gluon a
pb	Momentum of initial state gluon b
plbar	Momentum of final state anti-lepton
pl	Momentum of final state lepton
partons	Vector of outgoing parton momenta
qbar_first	Ordering of the qqbar pair (true: qbar-q, false: q-qbar)
nabove	Number of lipatov vertices "above" qqbar pair
qptype	Type of quark in qqbar pair
ltype	Final-state lepton type
zprop	Mass and width of the Z boson
stw2	Value of sin(theta_w)^2
ctw	Value of cos(theta_w)

Returns: Square of the current contractions for gg->gQQbarglbarl- scattering

This returns the square of the current contraction in gg->gQQbarg scattering with an emission of a Z Boson.

◆ ME_ZCenqqbar_gq()

std::vector<double> HEJ::currents::ME_ZCenqqbar_gq	(	const HLV &	pa,
		const HLV &	pb,
		const HLV &	plbar,
		const HLV &	pl,
		std::vector< HLV > const &	partons,
		const bool	qbar_first,
		const int	nabove,
		ParticleID	bptype,
		ParticleID	qptype,
		ParticleID	ltype,
		ParticleProperties const &	zprop,
		const double	stw2,
		const double	ctw
	)

Z+Jets central qqbar, gq initiated.

Parameters

pa	Momentum of initial state gluon a
pb	Momentum of initial state quark b
plbar	Momentum of final state anti-lepton
pl	Momentum of final state lepton
partons	Vector of outgoing parton momenta
qbar_first	Ordering of the qqbar pair (true: qbar-q, false: q-qbar)
nabove	Number of lipatov vertices "above" qqbar pair
bptype	Initial particle b type
qptype	Type of quark in qqbar pair
ltype	Final-state lepton type
zprop	Mass and width of the Z boson
stw2	Value of sin(theta_w)^2
ctw	Value of cos(theta_w)

Returns: Square of the current contractions for gq->gQQbarqlbarl- scattering

This returns the squares of the current contractions in gq->gQQbarq scattering with an emission of a Z Boson.

◆ ME_ZCenqqbar_qq()

std::vector<double> HEJ::currents::ME_ZCenqqbar_qq	(	const HLV &	pa,
		const HLV &	pb,
		const HLV &	plbar,
		const HLV &	pl,
		std::vector< HLV > const &	partons,
		const bool	qbar_first,
		const int	nabove,
		ParticleID	aptype,
		ParticleID	bptype,
		ParticleID	qptype,
		ParticleID	ltype,
		ParticleProperties const &	zprop,
		const double	stw2,
		const double	ctw
	)

Z+Jets central qqbar, qq initiated.

Parameters

pa	Momentum of initial state quark a
pb	Momentum of initial state quark b
plbar	Momentum of final state anti-lepton
pl	Momentum of final state lepton
partons	Vector of outgoing parton momenta
qbar_first	Ordering of the qqbar pair (true: qbar-q, false: q-qbar)
nabove	Number of lipatov vertices "above" qqbar pair
aptype	Initial particle a type
bptype	Initial particle b type
qptype	Type of quark in qqbar pair
ltype	Final-state lepton type
zprop	Mass and width of the Z boson
stw2	Value of sin(theta_w)^2
ctw	Value of cos(theta_w)

Returns: Square of the current contractions for qq->qQQbarqlbarl- scattering

This returns the squares of the current contractions in qq->qQQbarq scattering with an emission of a Z Boson.

◆ ME_ZExqqbar_gg()

double HEJ::currents::ME_ZExqqbar_gg	(	const HLV &	pa,
		const HLV &	pb,
		const HLV &	pq,
		const HLV &	pqbar,
		const HLV &	p3,
		const HLV &	plbar,
		const HLV &	pl,
		ParticleID	qptype,
		ParticleID	ltype,
		ParticleProperties const &	zprop,
		double	stw2,
		double	ctw
	)

Square of gg->qqbarglbarl- Z+Jets extremal qqbar current.

Parameters

pa	Momentum of initial state gluon splitting into qqbar
pb	Momentum of initial state gluon b
pq	Momentum of final state quark
pqbar	Momentum of final state anti-quark
p3	Momentum of final state gluon b
plbar	Momentum of final state anti-lepton
pl	Momentum of final state lepton
qptype	Type of quark in qqbar pair
ltype	Final-state lepton type
zprop	Mass and width of the Z boson
stw2	Value of sin(theta_w)^2
ctw	Value of cos(theta_w)

Returns: Square of the current contractions for gg->qqbarglbarl- scattering

This returns the square of the current contractions in gg->qqbarg scattering with an emission of a Z Boson.

◆ ME_ZExqqbar_gq()

std::vector<double> HEJ::currents::ME_ZExqqbar_gq	(	const HLV &	pa,
		const HLV &	pb,
		const HLV &	pq,
		const HLV &	pqbar,
		const HLV &	p3,
		const HLV &	plbar,
		const HLV &	pl,
		ParticleID	qptype,
		ParticleID	bptype,
		ParticleID	ltype,
		ParticleProperties const &	zprop,
		const double	stw2,
		const double	ctw
	)

Square of gQ->qqbarQlbarl- Z+jets extremal qqbar current.

Parameters

pa	Momentum of initial state gluon
pb	Momentum of initial state quark b
pq	Momentum of final state quark from qqbar pair
pqbar	Momentum of final state anti-quark from qqbar pair
p3	Momentum of final state quark b
plbar	Momentum of final state anti-lepton
pl	Momentum of final state lepton
qptype	Type of quark in qqbar pair
bptype	Initial particle b type
ltype	Final-state lepton type
zprop	Mass and width of the Z boson
stw2	Value of sin(theta_w)^2
ctw	Value of cos(theta_w)

Returns: Square of the current contractions for gQ->qqbarQlbarl- scattering

This returns the square of the current contractions in gQ->qqbarQ scattering with an emission of a Z Boson.

◆ ME_Zuno_qg()

double HEJ::currents::ME_Zuno_qg	(	const HLV &	pa,
		const HLV &	pb,
		const HLV &	pg,
		const HLV &	p1,
		const HLV &	p2,
		const HLV &	plbar,
		const HLV &	pl,
		ParticleID	aptype,
		ParticleID	bptype,
		ParticleID	ltype,
		ParticleProperties const &	zprop,
		double	stw2,
		double	ctw
	)

Square of qg->gqglbarl- Z+Jets Unordered Current.

Parameters

pa	Momentum of initial state quark
pb	Momentum of initial state gluon
pg	Momentum of final state unordered gluon
p1	Momentum of final state quark
p2	Momentum of final state gluon
plbar	Momentum of final state anti-lepton
pl	Momentum of final state lepton
aptype	Initial particle 1 type
bptype	Initial particle 2 type
ltype	Final-state lepton type
zprop	Mass and width of the Z boson
stw2	Value of sin(theta_w)^2
ctw	Value of cos(theta_w)

Returns: Square of the current contractions for qg->gqglbarl- Scattering

This returns the square of the current contractions in qg->gqg scattering with an emission of a Z Boson.

◆ ME_Zuno_qQ()

std::vector<double> HEJ::currents::ME_Zuno_qQ	(	const HLV &	pa,
		const HLV &	pb,
		const HLV &	pg,
		const HLV &	p1,
		const HLV &	p2,
		const HLV &	plbar,
		const HLV &	pl,
		ParticleID	aptype,
		ParticleID	bptype,
		ParticleID	ltype,
		ParticleProperties const &	zprop,
		double	stw2,
		double	ctw
	)

Square of qQ->gqQlbarl- Z+Jets Unordered Current.

Parameters

pa	Momentum of initial state quark a
pb	Momentum of initial state quark b
pg	Momentum of final state unordered gluon
p1	Momentum of final state quark a
p2	Momentum of final state quark b
plbar	Momentum of final state anti-lepton
pl	Momentum of final state lepton
aptype	Initial particle 1 type
bptype	Initial particle 2 type
ltype	Final-state lepton type
zprop	Mass and width of the Z boson
stw2	Value of sin(theta_w)^2
ctw	Value of cos(theta_w)

Returns: Square of the current contractions for qQ->gqQlbarl- Scattering

This returns the square of the current contractions in qQ->gqQ scattering with an emission of a Z Boson.

Typedefs

Functions

Typedef Documentation

◆ HLV

Function Documentation

◆ ME_Cenqqbar_qq()

◆ ME_H_gq()

◆ ME_H_qQ()

◆ ME_H_unob_qQ()

◆ ME_juno_jgH()

◆ ME_photon_Cenqqbar_gg()

◆ ME_photon_Cenqqbar_gq()

◆ ME_photon_Cenqqbar_qq()

◆ ME_photon_Exqqbar_gg()

◆ ME_photon_Exqqbar_gq()

◆ ME_photon_qg()

◆ ME_photon_qQ()

◆ ME_photon_uno_qg()

◆ ME_photon_uno_qQ()

◆ ME_qq()

◆ ME_qqbar_qg()

◆ ME_unob_qq()

◆ ME_W_Cenqqbar_qq()

◆ ME_W_Exqqbar_QQq()

◆ ME_W_qQ()

◆ ME_W_unob_qQ()

◆ ME_WCenqqbar_qq()

◆ ME_WExqqbar_qqbarQ()

◆ ME_Wuno_qQ()

◆ ME_WW_qbarQ()

◆ ME_WW_qbarQbar()

◆ ME_WW_qQ()

◆ ME_WW_qQbar()

◆ ME_Z_qg()

◆ ME_Z_qQ()

◆ ME_ZCenqqbar_gg()

◆ ME_ZCenqqbar_gq()

◆ ME_ZCenqqbar_qq()

◆ ME_ZExqqbar_gg()

◆ ME_ZExqqbar_gq()

◆ ME_Zuno_qg()

◆ ME_Zuno_qQ()