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//
// 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.

// Created: Kevin Lynch, 19.02.2009 - Based on G4EqEMFieldWithSpin
// -------------------------------------------------------------------
#ifndef G4EQEMFIELDWITHEDM_HH
#define G4EQEMFIELDWITHEDM_HH

#include "G4ChargeState.hh"
#include "G4EquationOfMotion.hh"

class G4ElectroMagneticField;

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

    G4EqEMFieldWithEDM(G4ElectroMagneticField* emField );

    ~G4EqEMFieldWithEDM();
  
    void  SetChargeMomentumMass(G4ChargeState 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 charge, mass, magMoment, spin;

    G4double fElectroMagCof ;
    G4double fMassCof;

    G4double omegac, anomaly, eta;
    G4double beta, gamma;

};

#endif
