EvtD0TopipiEta.hh

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#ifndef EVTD0TOPIPIETA_HH 
#define EVTD0TOPIPIETA_HH
 
#include "EvtGenBase/EvtDecayProb.hh"
 
class EvtParticle;
 
class EvtD0TopipiEta:public EvtDecayProb {
 
public:
   EvtD0TopipiEta() {}
   virtual ~EvtD0TopipiEta();
 
   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