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G4SigmaMinusField Class Reference

#include <G4SigmaMinusField.hh>

Inheritance diagram for G4SigmaMinusField:
Collaboration diagram for G4SigmaMinusField:

Public Member Functions

 G4SigmaMinusField (G4V3DNucleus *nucleus, G4double coeff=0.36 *CLHEP::fermi)
 
virtual ~G4SigmaMinusField ()
 
virtual G4double GetField (const G4ThreeVector &aPosition)
 
virtual G4double GetBarrier ()
 
virtual G4double GetCoeff ()
 
- Public Member Functions inherited from G4VNuclearField
 G4VNuclearField (G4V3DNucleus *aNucleus=0)
 
virtual ~G4VNuclearField ()
 
void SetNucleus (G4V3DNucleus *aNucleus)
 

Additional Inherited Members

- Protected Attributes inherited from G4VNuclearField
G4V3DNucleustheNucleus
 
const G4double radius
 

Detailed Description

Definition at line 46 of file G4SigmaMinusField.hh.

Constructor & Destructor Documentation

G4SigmaMinusField::G4SigmaMinusField ( G4V3DNucleus nucleus,
G4double  coeff = 0.36*CLHEP::fermi 
)

Definition at line 49 of file G4SigmaMinusField.cc.

50  : G4VNuclearField(nucleus)
51 {
52  theCoeff = coeff;
53 }
G4VNuclearField(G4V3DNucleus *aNucleus=0)
G4SigmaMinusField::~G4SigmaMinusField ( )
virtual

Definition at line 55 of file G4SigmaMinusField.cc.

56 { }

Member Function Documentation

G4double G4SigmaMinusField::GetBarrier ( )
virtual

Implements G4VNuclearField.

Definition at line 77 of file G4SigmaMinusField.cc.

78 {
81  G4double coulombBarrier = (1.44/1.14) * MeV * Z / (1.0 + G4Pow::GetInstance()->A13(A));
82  return -coulombBarrier;
83 }
static G4Pow * GetInstance()
Definition: G4Pow.cc:55
virtual G4int GetCharge()=0
virtual G4int GetMassNumber()=0
double A(double temperature)
G4double A13(G4double A) const
Definition: G4Pow.hh:132
G4V3DNucleus * theNucleus
static constexpr double MeV
Definition: G4SIunits.hh:214
double G4double
Definition: G4Types.hh:76

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virtual G4double G4SigmaMinusField::GetCoeff ( )
inlinevirtual

Reimplemented from G4VNuclearField.

Definition at line 61 of file G4SigmaMinusField.hh.

61 { return theCoeff; }
G4double G4SigmaMinusField::GetField ( const G4ThreeVector aPosition)
virtual

Implements G4VNuclearField.

Definition at line 58 of file G4SigmaMinusField.cc.

59 {
60 // Field is 0 out of the nucleus!
61  if(aPosition.mag() >= radius) return 0.0;
62 
63  G4double sigmaMinusMass = G4SigmaMinus::SigmaMinus()->GetPDGMass();
64 
68  G4double nucleusMass = Z*proton_mass_c2+(A-Z)*neutron_mass_c2+bindingEnergy;
69  G4double reducedMass = sigmaMinusMass*nucleusMass/(sigmaMinusMass+nucleusMass);
70 
71  const G4VNuclearDensity * nuclearDensity=theNucleus->GetNuclearDensity();
72  G4double density = nuclearDensity->GetDensity(aPosition);
73 
74  return -2.*pi*hbarc*hbarc/reducedMass*(2.0)*theCoeff*density+GetBarrier();
75 }
virtual G4double GetBarrier()
virtual G4int GetCharge()=0
virtual const G4VNuclearDensity * GetNuclearDensity() const =0
virtual G4int GetMassNumber()=0
int G4int
Definition: G4Types.hh:78
double A(double temperature)
float proton_mass_c2
Definition: hepunit.py:275
static G4SigmaMinus * SigmaMinus()
float neutron_mass_c2
Definition: hepunit.py:276
const G4double radius
G4double GetPDGMass() const
G4double GetDensity(const G4ThreeVector &aPosition) const
static G4double GetBindingEnergy(const G4int A, const G4int Z)
G4V3DNucleus * theNucleus
static constexpr double pi
Definition: G4SIunits.hh:75
double G4double
Definition: G4Types.hh:76
G4double bindingEnergy(G4int A, G4int Z)
double mag() const

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The documentation for this class was generated from the following files: