PYTHIA
8.312
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Helicity matrix element for a tau decay into three mesons with kaons. More...
#include <HelicityMatrixElements.h>
Additional Inherited Members | |
Public Member Functions inherited from HMETau2ThreeMesons | |
void | initConstants () |
Initialize constants for the helicity matrix element. More... | |
void | initHadronicCurrent (vector< HelicityParticle > &) |
Initialize the hadronic current for the helicity matrix element. More... | |
Public Member Functions inherited from HMETauDecay | |
virtual void | initWaves (vector< HelicityParticle > &) |
Initialize wave functions for the helicity matrix element. More... | |
virtual complex | calculateME (vector< int >) |
Return element for the helicity matrix element. | |
virtual double | decayWeightMax (vector< HelicityParticle > &) |
Return the maximum decay weight for the helicity matrix element. 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 HelicityMatrixElement * | initChannel (vector< HelicityParticle > &) |
Initialize the channel. More... | |
virtual double | decayWeight (vector< HelicityParticle > &) |
Calculate the matrix element weight for a decay. More... | |
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. | |
Protected Types inherited from HMETau2ThreeMesons | |
enum | Mode { Pi0Pi0Pim, PimPimPip, Pi0PimK0b, PimPipKm, Pi0PimEta, PimKmKp, Pi0K0Km, KlPimKs, Pi0Pi0Km, KlKlPim, PimKsKs, PimK0bK0, Uknown } |
Decay mode of the tau. | |
Protected Member Functions inherited from HMETau2ThreeMesons | |
virtual void | initMode () |
Initialize decay mode and resonance constants (called by initConstants). More... | |
virtual void | initMomenta (vector< HelicityParticle > &) |
Initialize the momenta. More... | |
virtual complex | F3 () |
virtual double | a1PhaseSpace (double) |
Phase space and Breit-Wigner for the a1. More... | |
virtual complex | a1BreitWigner (double) |
complex | T (double m0, double m1, double s, vector< double > &M, vector< double > &G, vector< double > &W) |
Sum running p and fixed width Breit-Wigner resonances. More... | |
complex | T (double s, vector< double > &M, vector< double > &G, vector< double > &W) |
Return summed weighted fixed width Breit-Wigner resonances. | |
Protected Member Functions inherited from HMETauDecay | |
virtual void | calculateResonanceWeights (vector< double > &, vector< double > &, vector< complex > &) |
Calculate complex resonance weights given a phase and amplitude vector. | |
Protected Attributes inherited from HMETau2ThreeMesons | |
Mode | mode {} |
double | s1 {} |
Center of mass energies and momenta. | |
double | s2 {} |
double | s3 {} |
double | s4 {} |
Wave4 | q {} |
Wave4 | q2 {} |
Wave4 | q3 {} |
Wave4 | q4 {} |
complex | a1BW {} |
Stored a1 Breit-Wigner (for speed). | |
Protected Attributes inherited from HelicityMatrixElement | |
double | DECAYWEIGHTMAX |
Maximum decay weight. WARNING: hardcoded constant. | |
vector< GammaMatrix > | gamma |
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. | |
ParticleData * | particleDataPtr |
Pointer to particle data. | |
CoupSM * | coupSMPtr |
Pointer to Standard Model constants. | |
Settings * | settingsPtr |
Pointer to Settings. | |
Helicity matrix element for a tau decay into three mesons with kaons.