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geant4/source/processes/hadronic/util/include/G4NuclearPolarization.hh
2017-12-08 12:52:30 +01:00

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// -------------------------------------------------------------------
// GEANT4 Class file
//
// File name: G4NuclearPolarization
//
// Author: Jason Detwiler (jasondet@gmail.com)
//
// Creation date: Aug 2015
//
// Description:
// Stores the statistical tensor describing the nuclear polarization
// (see Alder and Winther, "Electromagnetic Excitation" (1975),
// Appendix F).
//
// V.Ivanchenko left only polarization tensor and access methods
// in this class, also add operators
// this allows future implemention of polarized
// hadronic models with polarized initial and
// final states
//
// -------------------------------------------------------------------
#ifndef G4NUCLEARPOLARIZATION_HH
#define G4NUCLEARPOLARIZATION_HH
#include "globals.hh"
#include <vector>
class G4NuclearPolarization
{
public:
explicit G4NuclearPolarization(G4int Z, G4int A, G4double exc);
~G4NuclearPolarization();
inline void Unpolarize()
{
Clean();
fPolarization.resize(1);
fPolarization[0].push_back(1.0);
}
inline void SetPolarization(std::vector< std::vector<G4complex> >& p)
{
Clean();
for(auto & pol : p) {
fPolarization.push_back(pol);
}
}
inline std::vector< std::vector<G4complex> >& GetPolarization()
{
return fPolarization;
}
inline G4int GetZ() const
{
return fZ;
}
inline G4int GetA() const
{
return fA;
}
inline G4double GetExcitationEnergy() const
{
return fExcEnergy;
}
inline void SetExcitationEnergy(G4double val)
{
fExcEnergy = val;
}
// ============= OPERATORS ==================
inline G4NuclearPolarization & operator=(const G4NuclearPolarization &right)
{
if (this != &right) {
fZ = right.fZ;
fA = right.fA;
fExcEnergy = right.fExcEnergy;
fPolarization = right.fPolarization;
}
return *this;
}
inline G4NuclearPolarization(const G4NuclearPolarization &right )
{
*this = right;
}
G4bool operator==(const G4NuclearPolarization &right) const;
G4bool operator!=(const G4NuclearPolarization &right) const;
friend std::ostream& operator<<(std::ostream&, const G4NuclearPolarization&);
private:
void Clean();
G4int fZ;
G4int fA;
G4double fExcEnergy;
std::vector< std::vector<G4complex> > fPolarization;
};
#endif