EvtPropGounarisSakurai.hh

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#ifndef EVT_PROP_GOUNARIS_SAKURAI_HH
#define EVT_PROP_GOUNARIS_SAKURAI_HH
 
#include "EvtGenBase/EvtComplex.hh"
#include "EvtGenBase/EvtCyclic3.hh"
#include "EvtGenBase/EvtDalitzPlot.hh"
#include "EvtGenBase/EvtDalitzPoint.hh"
#include "EvtGenBase/EvtPropagator.hh"
 
class EvtPropGounarisSakurai : public EvtPropagator {
  public:
    EvtPropGounarisSakurai( EvtDalitzPlot* dp, EvtCyclic3::Pair pair, double m0,
                            double g0 );
 
    EvtAmplitude<EvtPoint1D>* clone() const override;
 
  protected:
    EvtComplex amplitude( const EvtPoint1D& x ) const override;
 
  private:
    EvtDalitzPlot* m_dalitzSpace;
 
    EvtCyclic3::Pair m_pair;
    double m_gbase;
    double m_m1;
    double m_m2;
    double m_dfun;
    double dFun( double s ) const;
    double dh_dsFun( double s ) const;
    double hFun( double s ) const;
    double kFun( double s ) const;
    double fsFun( double s ) const;
};
 
#endif