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PYTHIA
8.312
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Helicity matrix element for a tau decay into three pions. 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 | F4 () |
| 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 pions.
1.8.11
