PYTHIA  8.303
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HMEX2TwoFermions Class Reference

Helicity matrix element for the hard process of X -> two fermions. More...

#include <HelicityMatrixElements.h>

Inheritance diagram for HMEX2TwoFermions:
HelicityMatrixElement HMEGamma2TwoFermions HMEW2TwoFermions HMEZ2TwoFermions

Public Member Functions

void initWaves (vector< HelicityParticle > &)
 Helicity matrix element for X -> two fermions. More...
 
- Public Member Functions inherited from HelicityMatrixElement
 HelicityMatrixElement ()
 Constructor and destructor.
 
virtual void initPointers (ParticleData *, CoupSM *, Settings *=0)
 Initialize the physics matrices and pointers. More...
 
virtual HelicityMatrixElementinitChannel (vector< HelicityParticle > &)
 Initialize the channel. More...
 
virtual double decayWeight (vector< HelicityParticle > &)
 Calculate the matrix element weight for a decay. More...
 
virtual double decayWeightMax (vector< HelicityParticle > &)
 Calculate the maximum matrix element decay weight.
 
virtual complex calculateME (vector< int >)
 Calculate the helicity matrix element.
 
virtual void calculateD (vector< HelicityParticle > &)
 Calculate the decay matrix for a particle. More...
 
virtual void calculateRho (unsigned int, vector< HelicityParticle > &)
 Calculate the density matrix for a particle. More...
 
void setFermionLine (int, HelicityParticle &, HelicityParticle &)
 Set a fermion line. More...
 
virtual complex breitWigner (double s, double M, double G)
 Calculate Breit-Wigner's with running widths and fixed. More...
 
virtual complex sBreitWigner (double m0, double m1, double s, double M, double G)
 Return an s-wave BreitWigner.
 
virtual complex pBreitWigner (double m0, double m1, double s, double M, double G)
 Return a p-wave BreitWigner.
 
virtual complex dBreitWigner (double m0, double m1, double s, double M, double G)
 Return a d-wave BreitWigner.
 

Additional Inherited Members

- Protected Member Functions inherited from HelicityMatrixElement
virtual void initConstants ()
 Initialize the constants for the matrix element (called by initChannel).
 
- Protected Attributes inherited from HelicityMatrixElement
double DECAYWEIGHTMAX
 Maximum decay weight. WARNING: hardcoded constant.
 
vector< GammaMatrixgamma
 Physics matrices.
 
vector< int > pMap
 Particle map vector.
 
vector< int > pID
 Particle ID vector.
 
vector< double > pM
 Particle mass vector.
 
vector< vector< Wave4 > > u
 Wave functions.
 
ParticleDataparticleDataPtr
 Pointer to particle data.
 
CoupSMcoupSMPtr
 Pointer to Standard Model constants.
 
SettingssettingsPtr
 Pointer to Settings.
 

Detailed Description

Helicity matrix element for the hard process of X -> two fermions.

Member Function Documentation

void initWaves ( vector< HelicityParticle > &  p)
virtual

Helicity matrix element for X -> two fermions.

Base class for the W, photon, and Z -> two fermions helicity matrix elements. Initialize wave functions for the helicity matrix element.

Initialize W wave function.

Initialize fermion wave functions.

Reimplemented from HelicityMatrixElement.


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