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// $Id: G4EqEMFieldWithEDM.hh,v 1.2 2010-07-14 10:00:36 gcosmo Exp $
// GEANT4 tag $Name: not supported by cvs2svn $
//
//
// class G4EqEMFieldWithEDM
//
// Class description:
//
// This is the right-hand side of equation of motion in a combined
// electric and magnetic field, with spin tracking for both MDM and
// EDM terms.

// History:
// - Created. Kevin Lynch, 19.02.2009, based on G4EqEMFieldWithSpin
// -------------------------------------------------------------------

#ifndef G4EQEMFIELDWITHEDM_hh
#define G4EQEMFIELDWITHEDM_hh

#include "G4EquationOfMotion.hh"

class G4ElectroMagneticField;

class G4EqEMFieldWithEDM : public G4EquationOfMotion
{
  public:  // with description

    G4EqEMFieldWithEDM(G4ElectroMagneticField *emField );

    ~G4EqEMFieldWithEDM();
  
    void  SetChargeMomentumMass(G4double particleCharge, // in e+ units
                                G4double MomentumXc,
                                G4double mass);

    void EvaluateRhsGivenB(const G4double y[],
                           const G4double Field[],
                                 G4double dydx[] ) const;
      // Given the value of the electromagnetic field, this function 
      // calculates the value of the derivative dydx.

    inline void SetAnomaly(G4double a) { anomaly = a; }
    inline G4double GetAnomaly() const { return anomaly; }
      // set/get magnetic anomaly

    inline void SetEta(G4double n) { eta = n; }
    inline G4double GetEta() const { return eta; }
      // set/get EDM eta parameter

  private:

    G4double fElectroMagCof ;
    G4double fMassCof;
    G4double omegac;
    G4double anomaly;
    G4double eta;
    G4double pcharge;
    G4double E;
    G4double gamma;
    G4double beta;

};

#endif /* G4EQEMFIELDWITHEDM */