/////////////////////////////////////
//                                 //
// MScatter                        //
//                                 //
// Scattering of two pions.        //
//                                 //
/////////////////////////////////////

#ifndef ROOT_MScatter
#define ROOT_MScatter

#include "TObject.h"

class MScatter : public TObject
{
public: 

  MScatter();
  ~MScatter();
  
  double  Get_phi(double *P);
  double  Get_tetha(double *P);
  double  Get_energy(double *p);
  double  Get_velocity(double *p1, double *p2);
  double  Get_gamma(double v);
  double  Get_invariant_momentum(double p1[4], double p2[4]);
  double  Dice_phi(void);
  double  Dice_tetha(double R);
  double  Get_R(double p1[4], double p2[4]);
  
  void Center_of_gravity(double *P, double p1[4], double p2[4]);
  void Lorentz(double v, double p1[4], double p2[4]);
  void Turn(double p1[4], double p2[4], double phi, double tetha);
  void Turnback(double p1[4], double p2[4], double phi, double tetha);  
  void Scatter(double tetha, double phi, double p1[4], double p2[4]);
  void Scattering(double  p1[4], double p2[4]);

  ClassDef(MScatter,2)  // Scatterinng of two pions

};

#endif