EvtDTopiEtaEta.hh

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#ifndef EVTDTOPIETAETA_HH
#define EVTDTOPIETAETA_HH
 
#include "../EvtGenBase/EvtDecayProb.hh"
 
class EvtParticle;
 
class EvtDTopiEtaEta : public EvtDecayProb {
 
public:
  EvtDTopiEtaEta() {}
  virtual ~EvtDTopiEtaEta();
 
  void          getName( std::string& name );
  EvtDecayBase* clone();
 
  void init();
  void initProbMax();
  void decay( EvtParticle* p );
 
private:
  double     calDalEva( double P1[], double P2[], double P3[] );
  EvtComplex Spin_factor( double P1[], double P2[], double P3[], int spin, int flag,
                          double mass_R, double width_R );
 
  double dot( double* a1, double* a2 );
  double Qabcs( double sa, double sb, double sc );
  double barrier( double l, double sa, double sb, double sc, double r, double mass );
  void   calt1( double daug1[], double daug2[], double t1[] );
  void   calt2( double daug1[], double daug2[], double t2[][4] );
 
  double     wid( double mass, double sa, double sb, double sc, double r, int l );
  EvtComplex propagatorRBW( double mass, double width, double sa, double sb, double sc,
                            double r, int l );
 
  double     h( double m, double q );
  double     dh( double mass, double q0 );
  double     f( double mass, double sx, double q0, double q );
  double     d( double mass, double q0 );
  EvtComplex propagatorGS( double mass, double width, double sa, double sb, double sc,
                           double r, int l );
 
  EvtComplex Flatte_rhoab( double sa, double sb, double sc );
  EvtComplex propagatorFlatte( double mass, double width, double sx, double* sb, double* sc );
 
  double     rho[24];
  double     phi[24];
  double     mrho, ma0;
  double     Grho, Ga0;
  double     mpi, mD, sD, spi, snk, sck, scpi, snpi, seta;
  double     pi;
  EvtComplex ci;
  EvtComplex one;
  int        G[4][4];
};
 
#endif