herwig is hosted by Hepforge, IPPP Durham
Herwig 7.3.0
Herwig::MEfv2fs Class Reference

This class is designed to implement the matrix element for fermion-vector to fermion scalar. More...

#include <MEfv2fs.h>

Inheritance diagram for Herwig::MEfv2fs:

Public Member Functions

Virtual functions required by the GeneralHardME 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 subp)
 Construct the vertex information for the spin correlations.
 
- 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< DiagramIndexdiagrams (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 DiagramVectordiagrams () const
 
virtual Selector< const ColourLines * > colourGeometries (tcDiagPtr diag) const=0
 
virtual const ColourLinesselectColourGeometry (tcDiagPtr diag) const
 
virtual Selector< DiagramIndexdiagrams (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 DVectormeInfo () 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 DiagramVectordiagrams () const
 
virtual Selector< const ColourLines * > colourGeometries (tcDiagPtr diag) const=0
 
virtual const ColourLinesselectColourGeometry (tcDiagPtr diag) const
 
virtual Selector< DiagramIndexdiagrams (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 DVectormeInfo () 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 StandardModelBaseSM () 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 EventHandlerlastEventHandler () const
 
const EventHandlerlastEventHandler () const
 
tPExtrPtr lastExtractor () const
 
tPExtrPtr lastExtractor () const
 
PDFT pdf (tcPPtr parton) const
 
PDFT pdf (tcPPtr parton) const
 
const CutslastCuts () const
 
const CutslastCuts () const
 
tCutsPtr lastCutsPtr () const
 
tCutsPtr lastCutsPtr () const
 
const PPairlastParticles () const
 
const PPairlastParticles () const
 
Energy2 lastS () const
 
Energy2 lastS () const
 
const PPairlastPartons () const
 
const PPairlastPartons () 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 cPDVectormePartonData () const
 

Protected Member Functions

Standard Interfaced functions.
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 &)
 
ReferenceCountedoperator= (const ReferenceCounted &)
 
- Protected Member Functions inherited from ThePEG::Named
const Namedoperator= (const Named &other)
 
const string & name (const string &newName)
 

Private Types

typedef vector< SpinorWaveFunctionSpinorVector
 Vector of SpinorWaveFunctions.
 
typedef vector< SpinorBarWaveFunctionSpinorBarVector
 Vector of SpinorBarWaveFunctions.
 
typedef vector< VectorWaveFunctionVecWFVector
 Vector of VectorWaveFunctions.
 

Clone Methods.

vector< pair< AbstractFFSVertexPtr, AbstractVSSVertexPtr > > scalar_
 Store a pair of FFSVertex and VSSVertex pointers

 
vector< pair< AbstractFFSVertexPtr, AbstractFFVVertexPtr > > fermion_
 Store a pair of FFSVertex and FFVVertex pointers

 
vector< pair< AbstractFFVVertexPtr, AbstractVVSVertexPtr > > vector_
 Store a pair of VVSVertex and FFVVertex pointers

 
vector< pair< AbstractRFSVertexPtr, AbstractRFVVertexPtr > > RSfermion_
 Store a pair of FFSVertex and FFVVertex pointers

 
vector< AbstractFFVSVertexPtr > four_
 Store any 4-point vertices.
 
MEfv2fsoperator= (const MEfv2fs &)=delete
 The assignment operator is private and must never be called.
 
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.
 

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.
 

Functions to calculate production matrix elements and me2.

ProductionMatrixElement fv2fbsHeME (const SpinorVector &spIn, const VecWFVector &vecIn, const SpinorBarVector &spbOut, const ScalarWaveFunction &scaOut, double &full_me, bool first) const
 Calculate me2 and the production matrix element for the normal mode.
 
ProductionMatrixElement fbv2fsHeME (const SpinorBarVector &spbIn, const VecWFVector &vecIn, const SpinorVector &spOut, const ScalarWaveFunction &scaOut, double &full_me, bool first) const
 Calculate me2 and the production matrix element for the cc mode.
 
virtual void debug (double me2) const
 A debugging function to test the value of me2 against an analytic function.
 

Additional Inherited Members

- 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< ReweightPtrReweightVector
 
- 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
 
- 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

This class is designed to implement the matrix element for fermion-vector to fermion scalar.

It inherits from GeneralHardME and implements the required virtual functions.

See also
GeneralHardME

Definition at line 44 of file MEfv2fs.h.

Member Typedef Documentation

◆ SpinorBarVector

Vector of SpinorBarWaveFunctions.

Definition at line 50 of file MEfv2fs.h.

◆ SpinorVector

Vector of SpinorWaveFunctions.

Definition at line 47 of file MEfv2fs.h.

◆ VecWFVector

Vector of VectorWaveFunctions.

Definition at line 53 of file MEfv2fs.h.

Member Function Documentation

◆ clone()

virtual IBPtr Herwig::MEfv2fs::clone ( ) const
inlineprotectedvirtual

Make a simple clone of this object.

Returns
a pointer to the new object.

Implements ThePEG::InterfacedBase.

Definition at line 167 of file MEfv2fs.h.

◆ constructVertex()

virtual void Herwig::MEfv2fs::constructVertex ( tSubProPtr  subp)
virtual

Construct the vertex information for the spin correlations.

Parameters
subpPointer to the relevent SubProcess

Reimplemented from ThePEG::MEBase.

◆ debug()

virtual void Herwig::MEfv2fs::debug ( double  me2) const
protectedvirtual

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

Parameters
me2The value of the \( |\bar{\mathcal{M}}|^2 \)

Reimplemented from Herwig::GeneralHardME.

◆ doinit()

void Herwig::MEfv2fs::doinit ( )
protectedvirtual

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

Exceptions
InitExceptionif object could not be initialized properly.

Reimplemented from ThePEG::MEBase.

◆ fbv2fsHeME()

ProductionMatrixElement Herwig::MEfv2fs::fbv2fsHeME ( const SpinorBarVector spbIn,
const VecWFVector vecIn,
const SpinorVector spOut,
const ScalarWaveFunction scaOut,
double &  full_me,
bool  first 
) const
private

Calculate me2 and the production matrix element for the cc mode.

Parameters
spbInVector of SpinorBarWaveFunction for the incoming fermion
vecInVector of VectorWaveFunction for incoming boson
spOutVector of SpinorWaveFunction for outgoing fermion
scaOutScalarWaveFunction for outgoing scalar.
firstWhether or not first call to decide if colour decomposition etc should be calculated
full_meThe value of me2 calculation

◆ fullclone()

virtual IBPtr Herwig::MEfv2fs::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 173 of file MEfv2fs.h.

◆ fv2fbsHeME()

ProductionMatrixElement Herwig::MEfv2fs::fv2fbsHeME ( const SpinorVector spIn,
const VecWFVector vecIn,
const SpinorBarVector spbOut,
const ScalarWaveFunction scaOut,
double &  full_me,
bool  first 
) const
private

Calculate me2 and the production matrix element for the normal mode.

Parameters
spInVector of SpinorWaveFunction for the incoming fermion
vecInVector of VectorWaveFunction for incoming boson
spbOutVector of SpinorBarWaveFunction for outgoing fermion
scaOutScalarWaveFunction for outgoing scalar.
firstWhether or not first call to decide if colour decomposition etc should be calculated
full_meThe value of me2 calculation

◆ Init()

static void Herwig::MEfv2fs::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::MEfv2fs::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=()

MEfv2fs & Herwig::MEfv2fs::operator= ( const MEfv2fs )
privatedelete

The assignment operator is private and must never be called.

In fact, it should not even be implemented.

◆ persistentInput()

void Herwig::MEfv2fs::persistentInput ( PersistentIStream is,
int  version 
)

Function used to read in object persistently.

Parameters
isthe persistent input stream read from.
versionthe version number of the object when written.

◆ persistentOutput()

void Herwig::MEfv2fs::persistentOutput ( PersistentOStream os) const

Function used to write out object persistently.

Parameters
osthe persistent output stream written to.

Member Data Documentation

◆ fermion_

vector<pair<AbstractFFSVertexPtr, AbstractFFVVertexPtr> > Herwig::MEfv2fs::fermion_
private

Store a pair of FFSVertex and FFVVertex pointers

Definition at line 194 of file MEfv2fs.h.

◆ four_

vector<AbstractFFVSVertexPtr> Herwig::MEfv2fs::four_
private

Store any 4-point vertices.

Definition at line 209 of file MEfv2fs.h.

◆ RSfermion_

vector<pair<AbstractRFSVertexPtr, AbstractRFVVertexPtr> > Herwig::MEfv2fs::RSfermion_
private

Store a pair of FFSVertex and FFVVertex pointers

Definition at line 204 of file MEfv2fs.h.

◆ scalar_

vector<pair<AbstractFFSVertexPtr, AbstractVSSVertexPtr> > Herwig::MEfv2fs::scalar_
private

Store a pair of FFSVertex and VSSVertex pointers

Definition at line 189 of file MEfv2fs.h.

◆ vector_

vector<pair<AbstractFFVVertexPtr,AbstractVVSVertexPtr> > Herwig::MEfv2fs::vector_
private

Store a pair of VVSVertex and FFVVertex pointers

Definition at line 199 of file MEfv2fs.h.


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