Import Geant4 6.0.0 source tree

2016-06-09 10:41:53 +02:00
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+//
+// ********************************************************************
+// * DISCLAIMER                                                       *
+// *                                                                  *
+// * The following disclaimer summarizes all the specific disclaimers *
+// * of contributors to this software. The specific disclaimers,which *
+// * govern, are listed with their locations in:                      *
+// *   http://cern.ch/geant4/license                                  *
+// *                                                                  *
+// * Neither the authors of this software system, nor their employing *
+// * institutes,nor the agencies providing financial support for this *
+// * work  make  any representation or  warranty, express or implied, *
+// * regarding  this  software system or assume any liability for its *
+// * use.                                                             *
+// *                                                                  *
+// * This  code  implementation is the  intellectual property  of the *
+// * GEANT4 collaboration.                                            *
+// * By copying,  distributing  or modifying the Program (or any work *
+// * based  on  the Program)  you indicate  your  acceptance of  this *
+// * statement, and all its terms.                                    *
+// ********************************************************************
+//
+#ifndef G4RKFieldIntegrator_h
+#define G4RKFieldIntegrator_h 1
+
+#include "G4FieldPropagation.hh"
+
+class G4RKFieldIntegrator : public G4FieldPropagation  
+{
+public:
+   G4RKFieldIntegrator() {}
+   G4RKFieldIntegrator(const G4RKFieldIntegrator &):G4FieldPropagation() {}
+
+   ~G4RKFieldIntegrator() {}
+
+   //Operators
+   const G4RKFieldIntegrator & operator=(const G4RKFieldIntegrator &) {return *this;}
+   
+   int operator==(const G4RKFieldIntegrator &) const {return 1;}
+   int operator!=(const G4RKFieldIntegrator &) const {return 1;}
+
+   // only theActive are propagated, nothing else
+   // only theSpectators define the field, nothing else
+   void Transport(G4KineticTrackVector &theActive, const G4KineticTrackVector &theSpectators, G4double theTimeStep);
+   G4double GetExcitationEnergy(G4int nHitNucleons, const G4KineticTrackVector &theParticles);
+
+   // methods for calculating potentials for different types of particles
+   void Init(G4int z, G4int a) {theZ = z;  theA = a;} // prepare potentials' functions
+   
+   // aPosition is relative to the nucleus center
+   G4double GetNeutronPotential(G4double radius);
+   G4double GetNeutronPotential(G4ThreeVector &aPosition) {return GetNeutronPotential(aPosition.mag());}
+   
+   G4double GetProtonPotential(G4double radius);
+   G4double GetProtonPotential(G4ThreeVector &aPosition)  {return GetProtonPotential(aPosition.mag());}
+   
+   G4double GetAntiprotonPotential(G4double radius);
+   G4double GetAntiprotonPotential(G4ThreeVector &aPosition) {return GetAntiprotonPotential(aPosition.mag());};
+
+   G4double GetKaonPotential(G4double radius);
+   G4double GetKaonPotential(G4ThreeVector &aPosition) {return GetKaonPotential(aPosition.mag());}
+   
+   G4double GetPionPotential(G4double radius);
+   G4double GetPionPotential(G4ThreeVector &aPosition) {return GetPionPotential(aPosition.mag());}
+      
+private:
+   void Integrate(const G4KineticTrackVector & theActive, G4double theTimeStep);
+   G4double CalculateTotalEnergy(const G4KineticTrackVector& Barions);
+   G4double Erf(G4double X);
+
+  // parameters to calculate potentials
+  G4int theA;
+  G4int theZ;
+  
+  // Vc(A, Z) = 1.44 * Z /(r0*(1 + pow(A, 1/3))) 
+  //          = colomb * Z / (1 + pow(A, 1/3))
+  static const G4double coulomb;       // coulomb barier constant
+  static const G4double a_kaon;        // kaon's potential constant
+  static const G4double a_pion;        // pion's potential constant
+  static const G4double a_antiproton;  // antiproton's potential constant
+};
+
+#endif // G4RKFieldIntegrator_h
+
+