The MEff2ss class is designed to implement the matrix element for a fermion-antifermion to scalar-scalar hard process. More...

#include <MEff2ss.h>

Inheritance diagram for Herwig::MEff2ss:

[legend]

Public Types
typedef vector< SpinorWaveFunction >	SpinorVector
	Vector of SpinorWaveFunctions objects.

typedef vector< SpinorBarWaveFunction >	SpinorBarVector
	Vector of SpinorBarWaveFunction objects.

Public Types inherited from Herwig::GeneralHardME
enum	ColourStructure { UNDEFINED , Colour11to11 , Colour11to33bar , Colour11to88 , Colour33to33 , Colour33barto11 , Colour33barto33bar , Colour33barto66bar , Colour33barto6bar6 , Colour33to61 , Colour3bar3barto6bar1 , Colour33to16 , Colour3bar3barto16bar , Colour38to3bar6 , Colour38to63bar , Colour33barto18 , Colour33barto81 , Colour33barto88 , Colour38to13 , Colour38to31 , Colour38to83 , Colour38to38 , Colour3bar3barto3bar3bar , Colour3bar8to13bar , Colour3bar8to3bar1 , Colour3bar8to83bar , Colour3bar8to3bar8 , Colour88to11 , Colour88to33bar , Colour88to66bar , Colour88to88 , Colour88to18 , Colour88to81 , Colour33to13bar , Colour33to3bar1 , Colour33to83bar , Colour33to3bar8 , Colour3bar3barto13 , Colour3bar3barto31 , Colour3bar3barto83 , Colour3bar3barto38 , Colour38to3bar3bar , Colour3bar8to33 }
	Enum for the possible colour structures. More...

typedef vector< HPDiagram >::size_type	HPCount
	Convenient typedef for size_type of HPDiagram vector.

Public Types inherited from Herwig::HwMEBase
enum	POWHEGType { No , ISR , FSR , Both }
	Virtual members to be overridden by inheriting classes which implement hard corrections. More...

Public Types inherited from ThePEG::MEBase
typedef vector< DiagPtr >	DiagramVector

typedef DiagramVector::size_type	DiagramIndex

typedef vector< ReweightPtr >	ReweightVector

Public Types inherited from ThePEG::InterfacedBase
enum	InitState

Public Types inherited from ThePEG::Pointer::ReferenceCounted
typedef unsigned int	CounterType

Public Types inherited from ThePEG::LastXCombInfo< StandardXComb >
typedef ThePEG::Ptr< XC >::pointer	XCPtr

typedef ThePEG::Ptr< XC >::const_pointer	cXCPtr

typedef ThePEG::Ptr< XC >::transient_pointer	tXCPtr

typedef ThePEG::Ptr< XC >::transient_const_pointer	tcXCPtr

Protected Member Functions
Standard Interfaced functions.
virtual void	doinit ()
	Initialize this object after the setup phase before saving an EventGenerator to disk.

Protected Member Functions inherited from Herwig::GeneralHardME
virtual void	doinitrun ()
	Initialize this object.

const vector< HPDiagram > &	getProcessInfo () const
	Access the HPDiagrams that store the required information to create the diagrams.

pair< long, long >	getIncoming () const
	Return the incoming pair.

pair< long, long >	getOutgoing () const
	Return the outgoing pair.

const vector< DVector > &	getColourFactors () const
	Return the matrix of colour factors.

HPCount	numberOfDiags () const
	Get the number of diagrams in this process.

size_t	numberOfFlows () const
	Access number of colour flows.

bool	debugME () const
	Whether to print the debug information.

unsigned int	colourFlow () const
	Set/Get Info on the selected diagram and colour flow.

void	colourFlow (unsigned int flow) const
	Colour flow.

unsigned int	diagram () const
	Diagram.

void	diagram (unsigned int diag) const
	Diagram.

double	selectColourFlow (vector< double > &flow, vector< double > &me, double average) const
	Calculate weight and select colour flow.

vector< ProductionMatrixElement > &	flowME () const
	Access to the colour flow matrix element.

vector< ProductionMatrixElement > &	diagramME () const
	Access to the diagram matrix element.

ColourStructure	colour () const
	Access to the colour structure.

ParticleVector	hardParticles (tSubProPtr subp)
	Extract the paricles from the subprocess.

void	setRescaledMomenta (const ParticleVector &external)
	Set the rescaled momenta.

void	createVertex (ProductionMatrixElement &me, ParticleVector &external)
	Create the vertes.

void	initializeMatrixElements (PDT::Spin in1, PDT::Spin in2, PDT::Spin out1, PDT::Spin out2)
	Initialize the storage of the helicity matrix elements.

Protected Member Functions inherited from Herwig::HwMEBase
Energy2	tHat () const
	Return the \(\hat{t}\) of the last set phase space point.

Energy2	uHat () const
	Return the \(\hat{u}\) of the last set phase space point.

double	phi () const
	Return the azimuth angle of the last set phase space point.

void	tHat (Energy2 e2)
	Set the \(\hat{t}\) of the last set phase space point.

void	uHat (Energy2 e2)
	Set the \(\hat{u}\) of the last set phase space point.

void	phi (double phi)
	Set the azimuth angle of the last set phase space point.

void	massOption (vector< unsigned int > iopt)
	Set the treatment of the outgoing masses.

void	rescalingOption (unsigned int iopt)
	Rescaled momenta for the helicity ME.

bool	rescaleMomenta (const vector< Lorentz5Momentum > &, const cPDVector &)
	rescale the momenta for the computation of the helicity matrix element

const vector< Lorentz5Momentum > &	rescaledMomenta () const
	Access to the rescaled momenta.

bool	generateMasses (vector< Energy > &masses, double &mjac, const double *r)
	Generate the masses of the particles.

virtual double	getCosTheta (double cthmin, double cthmax, const double r)
	Used internally by generateKinematics, after calculating the limits on cos(theta).

Protected Member Functions inherited from ThePEG::MEBase
virtual void	doinit ()

virtual void	doinitrun ()

void	add (DiagPtr dp) const

vector< Lorentz5Momentum > &	meMomenta ()

void	lastME2 (double v) const

void	lastPreweight (double w) const

void	lastMECrossSection (CrossSection v) const

void	lastMEPDFWeight (double v) const

void	lastMECouplings (double v) const

void	jacobian (double j)

void	use (tcMEPtr other)

void	useDiagrams (tcMEPtr other) const

Protected Member Functions inherited from ThePEG::Interfaced
void	reporeg (IBPtr object, string name) const

bool	setDefaultReference (PtrT &ptr, string classname, string objectname)

	Interfaced (const string &newName)

	Interfaced (const Interfaced &i)

void	setGenerator (tEGPtr generator)

Protected Member Functions inherited from ThePEG::InterfacedBase
virtual void	readSetup (istream &is)

virtual void	doupdate ()

virtual void	doinit ()

virtual void	doinitrun ()

virtual void	dofinish ()

virtual IVector	getReferences ()

virtual void	rebind (const TranslationMap &)

virtual IBPtr	clone () const=0

	InterfacedBase (string newName)

	InterfacedBase (const InterfacedBase &i)

virtual void	readSetup (istream &is)

virtual void	doupdate ()

virtual void	doinit ()

virtual void	doinitrun ()

virtual void	dofinish ()

virtual IVector	getReferences ()

virtual void	rebind (const TranslationMap &)

Protected Member Functions inherited from ThePEG::Pointer::ReferenceCounted
	ReferenceCounted (const ReferenceCounted &)

ReferenceCounted &	operator= (const ReferenceCounted &)

Protected Member Functions inherited from ThePEG::Named
const Named &	operator= (const Named &other)

const string &	name (const string &newName)

Clone Methods.
vector< pair< AbstractFFSVertexPtr, AbstractSSSVertexPtr > >	scalar_
	Storage for dynamically cast vertices for a diagram with intermediate vector.

vector< pair< AbstractFFSVertexPtr, AbstractFFSVertexPtr > >	fermion_
	Storage for dynamically cast vertices for a diagram with intermediate fermion.

vector< pair< AbstractFFVVertexPtr, AbstractVSSVertexPtr > >	vector_
	Storage for dynamically cast vertices for a diagram with intermediate vector.

vector< pair< AbstractRFSVertexPtr, AbstractRFSVertexPtr > >	RSfermion_
	Storage for dynamically cast vertices for a diagram with intermediate fermion.

vector< pair< AbstractFFTVertexPtr, AbstractSSTVertexPtr > >	tensor_
	Storage for dynamically cast vertices for a diagram with intermediate tensor.

vector< AbstractFFSSVertexPtr >	fourPoint_
	Storage for dynamically cast 4 point vertices.

virtual IBPtr	clone () const
	Make a simple clone of this object.

virtual IBPtr	fullclone () const
	Make a clone of this object, possibly modifying the cloned object to make it sane.

MEff2ss &	operator= (const MEff2ss &)=delete
	The assignment operator is private and must never be called.

ProductionMatrixElement	ff2ssME (const SpinorVector &sp, const SpinorBarVector &sbar, const ScalarWaveFunction &sca1, const ScalarWaveFunction &sca2, double &me2, bool first) const
	Calculate the matrix element.

Virtual functions required by the MEBase class.
virtual double	me2 () const
	The matrix element for the kinematical configuration previously provided by the last call to setKinematics(), suitably scaled by sHat() to give a dimension-less number.

virtual void	constructVertex (tSubProPtr sub)
	Construct the vertex information for the spin correlations.

virtual void	debug (double me2) const
	A debugging function to test the value of me2 against an analytic function.

Functions used by the persistent I/O system.
void	persistentOutput (PersistentOStream &os) const
	Function used to write out object persistently.

void	persistentInput (PersistentIStream &is, int version)
	Function used to read in object persistently.

static void	Init ()
	The standard Init function used to initialize the interfaces.

Additional Inherited Members
Public Member Functions inherited from Herwig::GeneralHardME
	GeneralHardME ()
	The default constructor.

virtual unsigned int	orderInAlphaS () const
	Return the order in \(\alpha_S\) in which this matrix element is given.

virtual unsigned int	orderInAlphaEW () const
	Return the order in \(\alpha_{EW}\) in which this matrix element is given.

virtual Energy2	scale () const
	Return the scale associated with the last set phase space point.

virtual void	getDiagrams () const
	Add all possible diagrams with the add() function.

virtual Selector< DiagramIndex >	diagrams (const DiagramVector &dv) const
	Get diagram selector.

virtual Selector< const ColourLines * >	colourGeometries (tcDiagPtr diag) const
	Return a Selector with possible colour geometries for the selected diagram weighted by their relative probabilities.

void	setProcessInfo (const vector< HPDiagram > &process, ColourStructure colour, bool debug, unsigned int scaleOption, double scaleFactor)
	Set the diagrams and matrix of colour factors.

void	persistentOutput (PersistentOStream &os) const
	Function used to write out object persistently.

void	persistentInput (PersistentIStream &is, int version)
	Function used to read in object persistently.

Public Member Functions inherited from Herwig::HwMEBase
	HwMEBase ()
	Default constructor.

virtual int	nDim () const
	The number of internal degreed of freedom used in the matrix element.

virtual bool	generateKinematics (const double *r)
	Generate internal degrees of freedom given 'nDim()' uniform random numbers in the interval ]0,1[.

virtual CrossSection	dSigHatDR () const
	Return the matrix element for the kinematical configuation previously provided by the last call to setKinematics().

virtual void	setKinematics ()
	Set the typed and momenta of the incoming and outgoing partons to be used in subsequent calls to me() and colourGeometries() according to the associated XComb object.

virtual POWHEGType	hasPOWHEGCorrection ()
	Has a POWHEG style correction.

virtual bool	hasMECorrection ()
	Has an old fashioned ME correction.

virtual void	initializeMECorrection (RealEmissionProcessPtr, double &, double &)
	Initialize the ME correction.

virtual RealEmissionProcessPtr	applyHardMatrixElementCorrection (RealEmissionProcessPtr)
	Apply the hard matrix element correction to a given hard process or decay.

virtual bool	softMatrixElementVeto (PPtr parent, PPtr progenitor, const bool &fs, const Energy &highestpT, const vector< tcPDPtr > &ids, const double &z, const Energy &scale, const Energy &pT)
	Apply the soft matrix element correction.

virtual RealEmissionProcessPtr	generateHardest (RealEmissionProcessPtr, ShowerInteraction)
	Apply the POWHEG style correction.

void	persistentOutput (PersistentOStream &os) const
	Function used to write out object persistently.

void	persistentInput (PersistentIStream &is, int version)
	Function used to read in object persistently.

Public Member Functions inherited from ThePEG::MEBase
virtual unsigned int	orderInAlphaS () const=0

virtual unsigned int	orderInAlphaEW () const=0

virtual double	me2 () const=0

virtual Energy2	scale () const=0

virtual double	alphaS () const

virtual double	alphaEM () const

void	setKinematics (tPPair in, const PVector &out)

virtual void	setKinematics ()

virtual void	constructVertex (tSubProPtr sub)

virtual void	constructVertex (tSubProPtr sub, const ColourLines *cl)

virtual int	nDim () const

virtual bool	generateKinematics (const double *r)=0

virtual bool	wantCMS () const

virtual bool	headCuts () const

virtual bool	ignoreCuts () const

virtual bool	apply () const

virtual CrossSection	dSigHatDR () const=0

virtual map< string, double >	generateOptionalWeights ()

virtual bool	haveX1X2 () const

virtual bool	havePDFWeight1 () const

virtual bool	havePDFWeight2 () const

virtual bool	keepRandomNumbers () const

virtual void	generateSubCollision (SubProcess &)

virtual void	clearKinematics ()

virtual void	getDiagrams () const=0

virtual bool	noMirror () const

const DiagramVector &	diagrams () const

virtual Selector< const ColourLines * >	colourGeometries (tcDiagPtr diag) const=0

virtual const ColourLines &	selectColourGeometry (tcDiagPtr diag) const

virtual Selector< DiagramIndex >	diagrams (const DiagramVector &) const

virtual DiagramIndex	diagram (const DiagramVector &) const

bool	reweighted () const

double	reWeight () const

double	preWeight () const

void	addReweighter (tReweightPtr rw)

void	addPreweighter (tReweightPtr rw)

Ptr< Amplitude >::pointer	amplitude () const

void	amplitude (Ptr< Amplitude >::pointer amp)

Energy2	sHat () const

double	preweight () const

virtual void	flushCaches ()

virtual StdXCombPtr	makeXComb (Energy newMaxEnergy, const cPDPair &inc, tEHPtr newEventHandler, tSubHdlPtr newSubProcessHandler, tPExtrPtr newExtractor, tCascHdlPtr newCKKW, const PBPair &newPartonBins, tCutsPtr newCuts, const DiagramVector &newDiagrams, bool mir, const PartonPairVec &allPBins, tStdXCombPtr newHead=tStdXCombPtr(), tMEPtr newME=tMEPtr())

virtual StdXCombPtr	makeXComb (tStdXCombPtr newHead, const PBPair &newPartonBins, const DiagramVector &newDiagrams, tMEPtr newME=tMEPtr())

virtual void	fillProjectors ()

virtual void	setXComb (tStdXCombPtr)

const DVector &	meInfo () const

void	meInfo (const DVector &info) const

virtual int	maxMultCKKW () const

virtual int	minMultCKKW () const

virtual void	maxMultCKKW (int mult)

virtual void	minMultCKKW (int mult)

virtual void	setVetoScales (tSubProPtr) const

virtual unsigned int	orderInAlphaS () const=0

virtual unsigned int	orderInAlphaEW () const=0

virtual double	me2 () const=0

virtual Energy2	scale () const=0

virtual double	alphaS () const

virtual double	alphaEM () const

void	setKinematics (tPPair in, const PVector &out)

virtual void	setKinematics ()

virtual void	constructVertex (tSubProPtr sub)

virtual void	constructVertex (tSubProPtr sub, const ColourLines *cl)

virtual int	nDim () const

virtual bool	generateKinematics (const double *r)=0

virtual bool	wantCMS () const

virtual bool	headCuts () const

virtual bool	ignoreCuts () const

virtual bool	apply () const

virtual CrossSection	dSigHatDR () const=0

virtual map< string, double >	generateOptionalWeights ()

virtual bool	haveX1X2 () const

virtual bool	havePDFWeight1 () const

virtual bool	havePDFWeight2 () const

virtual bool	keepRandomNumbers () const

virtual void	generateSubCollision (SubProcess &)

virtual void	clearKinematics ()

virtual void	getDiagrams () const=0

virtual bool	noMirror () const

const DiagramVector &	diagrams () const

virtual Selector< const ColourLines * >	colourGeometries (tcDiagPtr diag) const=0

virtual const ColourLines &	selectColourGeometry (tcDiagPtr diag) const

virtual Selector< DiagramIndex >	diagrams (const DiagramVector &) const

virtual DiagramIndex	diagram (const DiagramVector &) const

bool	reweighted () const

double	reWeight () const

double	preWeight () const

void	addReweighter (tReweightPtr rw)

void	addPreweighter (tReweightPtr rw)

Ptr< Amplitude >::pointer	amplitude () const

void	amplitude (Ptr< Amplitude >::pointer amp)

Energy2	sHat () const

double	preweight () const

virtual void	flushCaches ()

virtual StdXCombPtr	makeXComb (Energy newMaxEnergy, const cPDPair &inc, tEHPtr newEventHandler, tSubHdlPtr newSubProcessHandler, tPExtrPtr newExtractor, tCascHdlPtr newCKKW, const PBPair &newPartonBins, tCutsPtr newCuts, const DiagramVector &newDiagrams, bool mir, const PartonPairVec &allPBins, tStdXCombPtr newHead=tStdXCombPtr(), tMEPtr newME=tMEPtr())

virtual StdXCombPtr	makeXComb (tStdXCombPtr newHead, const PBPair &newPartonBins, const DiagramVector &newDiagrams, tMEPtr newME=tMEPtr())

virtual void	fillProjectors ()

virtual void	setXComb (tStdXCombPtr)

const DVector &	meInfo () const

void	meInfo (const DVector &info) const

virtual int	maxMultCKKW () const

virtual int	minMultCKKW () const

virtual void	maxMultCKKW (int mult)

virtual void	minMultCKKW (int mult)

virtual void	setVetoScales (tSubProPtr) const

void	persistentOutput (PersistentOStream &os) const

void	persistentInput (PersistentIStream &is, int version)

Public Member Functions inherited from ThePEG::HandlerBaseT< UseRandom >
double	rnd () const

double	rnd (double xu) const

double	rnd (double xl, double xu) const

bool	rndbool () const

bool	rndbool (double p) const

bool	rndbool (double p1, double p2) const

int	rndsign (double p1, double p2, double p3) const

int	rnd2 (double p0, double p1) const

int	rnd3 (double p0, double p1, double p2) const

int	rnd4 (double p0, double p1, double p2, double p3) const

long	irnd (long xu=2) const

long	irnd (long xl, long xu) const

const StandardModelBase &	SM () const

tSMPtr	standardModel () const

Public Member Functions inherited from ThePEG::Interfaced
virtual bool	defaultInit ()

PPtr	getParticle (PID) const

PDPtr	getParticleData (PID) const

bool	used () const

void	useMe () const

tEGPtr	generator () const

void	persistentOutput (PersistentOStream &os) const

void	persistentInput (PersistentIStream &is, int version)

PPtr	getParticle (PID) const

PDPtr	getParticleData (PID) const

bool	used () const

void	useMe () const

tEGPtr	generator () const

Public Member Functions inherited from ThePEG::InterfacedBase
string	fullName () const

string	name () const

string	path () const

string	comment () const

void	setup (istream &is)

void	update ()

void	init ()

virtual bool	preInitialize () const

void	initrun ()

void	finish ()

void	touch ()

void	reset ()

void	clear ()

InitState	state () const

bool	locked () const

bool	touched () const

virtual IBPtr	fullclone () const

void	persistentOutput (PersistentOStream &os) const

void	persistentInput (PersistentIStream &is, int version)

virtual void	debugme () const

void	update ()

void	init ()

virtual bool	preInitialize () const

void	initrun ()

void	finish ()

void	touch ()

void	reset ()

void	clear ()

InitState	state () const

bool	locked () const

bool	touched () const

virtual IBPtr	fullclone () const

Public Member Functions inherited from ThePEG::Base
void	debug () const

virtual void	debugme () const

Public Member Functions inherited from ThePEG::Pointer::ReferenceCounted
CounterType	referenceCount () const

Public Member Functions inherited from ThePEG::Named
	Named (const string &newName=string())

	Named (const Named &)=default

const string &	name () const

bool	operator== (const Named &other) const

bool	operator< (const Named &other) const

Public Member Functions inherited from ThePEG::LastXCombInfo< StandardXComb >
const XC &	lastXComb () const

const XC &	lastXComb () const

tXCPtr	lastXCombPtr () const

tXCPtr	lastXCombPtr () const

const XC &	lastHeadXComb () const

const XC &	lastHeadXComb () const

tXCPtr	lastHeadXCombPtr () const

tXCPtr	lastHeadXCombPtr () const

const EventHandler &	lastEventHandler () const

const EventHandler &	lastEventHandler () const

tPExtrPtr	lastExtractor () const

tPExtrPtr	lastExtractor () const

PDFT	pdf (tcPPtr parton) const

PDFT	pdf (tcPPtr parton) const

const Cuts &	lastCuts () const

const Cuts &	lastCuts () const

tCutsPtr	lastCutsPtr () const

tCutsPtr	lastCutsPtr () const

const PPair &	lastParticles () const

const PPair &	lastParticles () const

Energy2	lastS () const

Energy2	lastS () const

const PPair &	lastPartons () const

const PPair &	lastPartons () const

Energy2	lastSHat () const

Energy2	lastSHat () const

double	lastTau () const

double	lastTau () const

double	lastY () const

double	lastY () const

double	lastP1 () const

double	lastP1 () const

double	lastP2 () const

double	lastP2 () const

double	lastL1 () const

double	lastL1 () const

double	lastL2 () const

double	lastL2 () const

double	lastX1 () const

double	lastX1 () const

double	lastX2 () const

double	lastX2 () const

double	lastE1 () const

double	lastE1 () const

double	lastE2 () const

double	lastE2 () const

double	lastFL1L2 () const

double	lastFL1L2 () const

Energy2	lastScale () const

double	lastAlphaS () const

double	lastAlphaEM () const

const vector< Lorentz5Momentum > &	meMomenta () const

double	lastME2 () const

double	lastPreweight () const

double	jacobian () const

CrossSection	lastMECrossSection () const

double	lastMEPDFWeight () const

double	lastMECouplings () const

tSubProPtr	subProcess () const

const cPDVector &	mePartonData () const

Static Public Member Functions inherited from Herwig::GeneralHardME
static void	Init ()
	The standard Init function used to initialize the interfaces.

Static Public Member Functions inherited from Herwig::HwMEBase
static void	Init ()
	The standard Init function used to initialize the interfaces.

Static Public Member Functions inherited from ThePEG::MEBase
static void	Init ()

Static Public Member Functions inherited from ThePEG::HandlerBase
static void	Init ()

Static Public Member Functions inherited from ThePEG::Interfaced
static void	Init ()

Static Public Member Functions inherited from ThePEG::InterfacedBase
static void	Init ()

Static Public Member Functions inherited from ThePEG::Base
static void	Init ()

Public Attributes inherited from ThePEG::InterfacedBase
	initializing

	uninitialized

	initialized

	runready

Public Attributes inherited from ThePEG::Pointer::ReferenceCounted
const unsigned long	uniqueId

Static Protected Member Functions inherited from ThePEG::Interfaced
static void	registerRepository (IBPtr)

static void	registerRepository (IBPtr, string newName)

Protected Attributes inherited from ThePEG::LastXCombInfo< StandardXComb >
XCPtr	theLastXComb

Detailed Description

The MEff2ss class is designed to implement the matrix element for a fermion-antifermion to scalar-scalar hard process.

It inherits from GeneralHardME and implements the appropriate virtual functions for this specific spin combination.

See also: GeneralHardME

Definition at line 40 of file MEff2ss.h.

Member Typedef Documentation

◆ SpinorBarVector

typedef vector<SpinorBarWaveFunction> Herwig::MEff2ss::SpinorBarVector

Vector of SpinorBarWaveFunction objects.

Definition at line 48 of file MEff2ss.h.

◆ SpinorVector

typedef vector<SpinorWaveFunction> Herwig::MEff2ss::SpinorVector

Vector of SpinorWaveFunctions objects.

Definition at line 45 of file MEff2ss.h.

Member Function Documentation

◆ clone()

virtual IBPtr Herwig::MEff2ss::clone ( ) const

inlineprotectedvirtual

Make a simple clone of this object.

Returns: a pointer to the new object.

Implements ThePEG::InterfacedBase.

Definition at line 126 of file MEff2ss.h.

◆ constructVertex()

virtual void Herwig::MEff2ss::constructVertex ( tSubProPtr sub )

virtual

Construct the vertex information for the spin correlations.

Parameters

sub	Pointer to the relevent SubProcess

Reimplemented from ThePEG::MEBase.

◆ debug()

virtual void Herwig::MEff2ss::debug ( double me2 ) const

protectedvirtual

A debugging function to test the value of me2 against an analytic function.

Parameters

me2	The value of the \( \|\bar{\mathcal{M}}\|^2 \)

Reimplemented from Herwig::GeneralHardME.

◆ doinit()

virtual void Herwig::MEff2ss::doinit ( )

protectedvirtual

Initialize this object after the setup phase before saving an EventGenerator to disk.

Exceptions

InitException if object could not be initialized properly.

Reimplemented from ThePEG::MEBase.

◆ ff2ssME()

ProductionMatrixElement Herwig::MEff2ss::ff2ssME	(	const SpinorVector &	sp,
		const SpinorBarVector &	sbar,
		const ScalarWaveFunction &	sca1,
		const ScalarWaveFunction &	sca2,
		double &	me2,
		bool	first
	)		const

private

Calculate the matrix element.

Parameters

sp	A vector of SpinorWaveFunction objects
sbar	A vector of SpinorBarWaveFunction objects
sca1	A ScalarWaveFunction for an outgoing scalar
sca2	A ScalarWaveFunction for the other outgoing scalar
me2	The spin averaged matrix element
first	Whether or not first call to decide if colour decomposition etc should be calculated

◆ fullclone()

virtual IBPtr Herwig::MEff2ss::fullclone ( ) const

inlineprotectedvirtual

Make a clone of this object, possibly modifying the cloned object to make it sane.

Returns: a pointer to the new object.

Reimplemented from ThePEG::InterfacedBase.

Definition at line 132 of file MEff2ss.h.

◆ Init()

static void Herwig::MEff2ss::Init ( )

static

The standard Init function used to initialize the interfaces.

Called exactly once for each class by the class description system before the main function starts or when this class is dynamically loaded.

◆ me2()

virtual double Herwig::MEff2ss::me2 ( ) const

virtual

The matrix element for the kinematical configuration previously provided by the last call to setKinematics(), suitably scaled by sHat() to give a dimension-less number.

Returns: the matrix element scaled with sHat() to give a dimensionless number.

Implements Herwig::GeneralHardME.

◆ operator=()

MEff2ss & Herwig::MEff2ss::operator= ( const MEff2ss & )

privatedelete

The assignment operator is private and must never be called.

In fact, it should not even be implemented.

◆ persistentInput()

void Herwig::MEff2ss::persistentInput	(	PersistentIStream &	is,
		int	version
	)

Function used to read in object persistently.

Parameters

is	the persistent input stream read from.
version	the version number of the object when written.

◆ persistentOutput()

void Herwig::MEff2ss::persistentOutput ( PersistentOStream & os ) const

Function used to write out object persistently.

Parameters

os	the persistent output stream written to.

Member Data Documentation

◆ fermion_

vector<pair<AbstractFFSVertexPtr, AbstractFFSVertexPtr> > Herwig::MEff2ss::fermion_

private

Storage for dynamically cast vertices for a diagram with intermediate fermion.

Definition at line 173 of file MEff2ss.h.

◆ fourPoint_

vector<AbstractFFSSVertexPtr> Herwig::MEff2ss::fourPoint_

private

Storage for dynamically cast 4 point vertices.

Definition at line 196 of file MEff2ss.h.

◆ RSfermion_

vector<pair<AbstractRFSVertexPtr, AbstractRFSVertexPtr> > Herwig::MEff2ss::RSfermion_

private

Storage for dynamically cast vertices for a diagram with intermediate fermion.

Definition at line 185 of file MEff2ss.h.

◆ scalar_

vector<pair<AbstractFFSVertexPtr, AbstractSSSVertexPtr> > Herwig::MEff2ss::scalar_

private

Storage for dynamically cast vertices for a diagram with intermediate vector.

Definition at line 167 of file MEff2ss.h.

◆ tensor_

vector<pair<AbstractFFTVertexPtr, AbstractSSTVertexPtr> > Herwig::MEff2ss::tensor_

private

Storage for dynamically cast vertices for a diagram with intermediate tensor.

Definition at line 191 of file MEff2ss.h.

◆ vector_

vector<pair<AbstractFFVVertexPtr, AbstractVSSVertexPtr> > Herwig::MEff2ss::vector_

private

Storage for dynamically cast vertices for a diagram with intermediate vector.

Definition at line 179 of file MEff2ss.h.

The documentation for this class was generated from the following file:

MEff2ss.h

Public Types

Protected Member Functions

Clone Methods.

Virtual functions required by the MEBase class.

Functions used by the persistent I/O system.

Additional Inherited Members

Detailed Description

Member Typedef Documentation

◆ SpinorBarVector

◆ SpinorVector

Member Function Documentation

◆ clone()

◆ constructVertex()

◆ debug()

◆ doinit()

◆ ff2ssME()

◆ fullclone()

◆ Init()

◆ me2()

◆ operator=()

◆ persistentInput()

◆ persistentOutput()

Member Data Documentation

◆ fermion_

◆ fourPoint_

◆ RSfermion_

◆ scalar_

◆ tensor_

◆ vector_