G4EqEMFieldWithSpin.hh

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// G4EqEMFieldWithSpin
//
// Class description:
//
// This is the right-hand side of equation of motion in a combined
// electric and magnetic field.
 
// Created: Chris Gong & Peter Gumplinger, 30.08.2007
// -------------------------------------------------------------------
#ifndef G4EQEMFIELDWITHSPIN_HH
#define G4EQEMFIELDWITHSPIN_HH
 
#include "G4ChargeState.hh"
#include "G4EquationOfMotion.hh"
 
class G4ElectroMagneticField;
 
class G4EqEMFieldWithSpin : public G4EquationOfMotion
{
  public:
 
    G4EqEMFieldWithSpin(G4ElectroMagneticField* emField );
   ~G4EqEMFieldWithSpin() override;
 
    void SetChargeMomentumMass(G4ChargeState particleCharge, // in e+ units
                               G4double MomentumXc,
                               G4double mass) override;
 
    void EvaluateRhsGivenB(const G4double y[],
                           const G4double Field[],
                                 G4double dydx[] ) const override;
      // 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
 
  private:
 
    G4double charge{0.}, mass{0.}, magMoment{0.}, spin{0.};
 
    G4double fElectroMagCof{0.};
    G4double fMassCof{0.};
 
    G4double omegac{0.}, anomaly{0.0011659208};
    G4double beta{0.}, gamma{0.};
};
 
#endif