Geant4 Cross Reference

Cross-Referencing   Geant4
Geant4/geometry/magneticfield/include/G4EqEMFieldWithSpin.hh

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 25 //
 26 // G4EqEMFieldWithSpin
 27 //
 28 // Class description:
 29 //
 30 // This is the right-hand side of equation of motion in a combined
 31 // electric and magnetic field.
 32 
 33 // Created: Chris Gong & Peter Gumplinger, 30.08.2007
 34 // -------------------------------------------------------------------
 35 #ifndef G4EQEMFIELDWITHSPIN_HH
 36 #define G4EQEMFIELDWITHSPIN_HH
 37 
 38 #include "G4ChargeState.hh"
 39 #include "G4EquationOfMotion.hh"
 40 
 41 class G4ElectroMagneticField;
 42 
 43 class G4EqEMFieldWithSpin : public G4EquationOfMotion
 44 {
 45   public:
 46 
 47     G4EqEMFieldWithSpin(G4ElectroMagneticField* emField );
 48    ~G4EqEMFieldWithSpin() override;
 49 
 50     void SetChargeMomentumMass(G4ChargeState particleCharge, // in e+ units
 51                                G4double MomentumXc,
 52                                G4double mass) override;
 53 
 54     void EvaluateRhsGivenB(const G4double y[],
 55                            const G4double Field[],
 56                                  G4double dydx[] ) const override;
 57       // Given the value of the electromagnetic field, this function 
 58       // calculates the value of the derivative dydx.
 59 
 60     inline void SetAnomaly(G4double a) { anomaly = a; }
 61     inline G4double GetAnomaly() const { return anomaly; }
 62       // set/get magnetic anomaly
 63 
 64   private:
 65 
 66     G4double charge{0.}, mass{0.}, magMoment{0.}, spin{0.};
 67 
 68     G4double fElectroMagCof{0.};
 69     G4double fMassCof{0.};
 70 
 71     G4double omegac{0.}, anomaly{0.0011659208};
 72     G4double beta{0.}, gamma{0.};
 73 };
 74 
 75 #endif
 76