EvtISGW2FF.hh

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#ifndef EVTISGW2FF_HH
#define EVTISGW2FF_HH

#include "EvtGenBase/EvtSemiLeptonicFF.hh"

class EvtId;

// Description:Form factor routines specific to EvtISGW2

class EvtISGW2FF : public EvtSemiLeptonicFF {
  public:
    void getscalarff( EvtId parent, EvtId daught, double t, double mass,
                      double* fpf, double* f0f ) override;
    void getvectorff( EvtId parent, EvtId daught, double t, double mass,
                      double* a1f, double* a2f, double* vf,
                      double* a0f ) override;
    void gettensorff( EvtId parent, EvtId daught, double t, double mass,
                      double* hf, double* kf, double* bpf, double* bmf ) override;

    void getbaryonff( EvtId, EvtId, double, double, double*, double*, double*,
                      double* ) override;

    void getdiracff( EvtId, EvtId, double, double, double*, double*, double*,
                     double*, double*, double* ) override;

    void getraritaff( EvtId, EvtId, double, double, double*, double*, double*,
                      double*, double*, double*, double*, double* ) override;

  private:
    // getscalarff, getvectorff, and gettensorff call the
    // correct isgw2 form factor routine which computes
    // form factors according to the ISGW2 paper.

    void EvtISGW2FF3S1( EvtId parent, EvtId daught, double t, double mass,
                        double* ff, double* gf, double* apf, double* amf );
    void EvtISGW2FF23S1( EvtId parent, EvtId daught, double t, double mass,
                         double* fpf, double* gpf, double* app, double* apm );
    void EvtISGW2FF3P1( EvtId parent, EvtId daught, double t, double mass,
                        double* lf, double* qf, double* cpf, double* cmf );
    void EvtISGW2FF3P0( EvtId parent, EvtId daught, double t, double mass,
                        double* upf, double* umf );
    void EvtISGW2FF1S0( EvtId parent, EvtId daught, double t, double mass,
                        double* fpf, double* fmf );
    void EvtISGW2FF21S0( EvtId parent, EvtId daught, double t, double mass,
                         double* fppf, double* fpmf );
    void EvtISGW2FF3P2( EvtId parent, EvtId daught, double t, double mass,
                        double* h, double* k, double* bp, double* bm );
    void EvtISGW2FF1P1( EvtId parent, EvtId daught, double t, double mass,
                        double* rf, double* vf, double* spf, double* smf );

    double EvtGetas( double mass );
    double EvtGetas( double mass, double mass1 );
    double EvtGetGammaji( double z );
};

#endif