TPiCrossPart.h

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#ifndef RAD_TPiCrossPart
#define RAD_TPiCrossPart
 
#include "TVCrossPart.h"
#include "TPiKFun.h"
#include "TFormFactor.h"
 
class TPiCrossPart:public TVCrossPart{
protected:
  TPiKFun *fK;          // Soft and virtual photons correction 
  TPhotonD *fPhD1;
  TPhotonD *fPhD2;
  TPhotonI *fPhI1;
  TPhotonI *fPhI2;
  TPhotonFS *fPhFS;
  TFormFactor *fFpi;
  double fCosMin;
  double fSinTheta2;
  double fNorm;
  double fCompPiSV;
  double fBetaPi;
  double MakeCosTheta();
  double GetCNorm();
  double R_Gamma();
  double R_Gamma_t();
  double R_Gamma_kuraev_eidelman();
public:
  TPiCrossPart();
  virtual ~TPiCrossPart();
  double BornShift(const double&, const double&, const double&);
  double GetValue(const unsigned int);
  void Init();
  void SetThetaMin(const double &);
  TFormFactor *GetFormFactor(){return fFpi;}
};
 
#endif //#ifndef RAD_TPiCrossPart