Geant4-11
Public Member Functions | Protected Attributes | Private Member Functions | Private Attributes
G4PionPlusField Class Reference

#include <G4PionPlusField.hh>

Inheritance diagram for G4PionPlusField:
G4VNuclearField

Public Member Functions

 G4PionPlusField (G4V3DNucleus *nucleus, G4double coeff=0.042 *CLHEP::fermi)
 
virtual G4double GetBarrier ()
 
virtual G4double GetCoeff ()
 
virtual G4double GetField (const G4ThreeVector &aPosition)
 
void SetNucleus (G4V3DNucleus *aNucleus)
 
virtual ~G4PionPlusField ()
 

Protected Attributes

const G4double radius
 
G4V3DNucleus * theNucleus
 

Private Member Functions

 G4PionPlusField (const G4PionPlusField &right)
 
G4bool operator!= (const G4PionPlusField &right) const
 
const G4PionPlusField & operator= (const G4PionPlusField &right)
 
G4bool operator== (const G4PionPlusField &right) const
 

Private Attributes

G4double theCoeff
 

Detailed Description

Definition at line 47 of file G4PionPlusField.hh.

Constructor & Destructor Documentation

◆ G4PionPlusField() [1/2]

G4PionPlusField::G4PionPlusField ( G4V3DNucleus *  nucleus,
G4double  coeff = 0.042*CLHEP::fermi 
)

Definition at line 49 of file G4PionPlusField.cc.

50 : G4VNuclearField(nucleus)
51{
52 theCoeff = coeff;
53}
G4VNuclearField::G4VNuclearField
G4VNuclearField(G4V3DNucleus *aNucleus=0)
Definition: G4VNuclearField.cc:42

References theCoeff.

◆ ~G4PionPlusField()

G4PionPlusField::~G4PionPlusField ( )
virtual

Definition at line 56 of file G4PionPlusField.cc.

57{ }

◆ G4PionPlusField() [2/2]

G4PionPlusField::G4PionPlusField ( const G4PionPlusField &  right)
private

Member Function Documentation

◆ GetBarrier()

G4double G4PionPlusField::GetBarrier ( )
virtual

Implements G4VNuclearField.

Definition at line 79 of file G4PionPlusField.cc.

80{
81 G4int A = theNucleus->GetMassNumber();
82 G4int Z = theNucleus->GetCharge();
83 G4double coulombBarrier = (1.44/1.14) * MeV * Z / (1.0 + G4Pow::GetInstance()->Z13(A));
84 return coulombBarrier;
85}
MeV
static constexpr double MeV
Definition: G4SIunits.hh:200
G4double
double G4double
Definition: G4Types.hh:83
G4int
int G4int
Definition: G4Types.hh:85
Z
const G4int Z[17]
Definition: G4WaterStopping.cc:51
A
const G4double A[17]
Definition: G4WaterStopping.cc:53
G4Pow::GetInstance
static G4Pow * GetInstance()
Definition: G4Pow.cc:41
G4Pow::Z13
G4double Z13(G4int Z) const
Definition: G4Pow.hh:123
G4V3DNucleus::GetCharge
virtual G4int GetCharge()=0
G4V3DNucleus::GetMassNumber
virtual G4int GetMassNumber()=0
G4VNuclearField::theNucleus
G4V3DNucleus * theNucleus
Definition: G4VNuclearField.hh:47

References A, G4V3DNucleus::GetCharge(), G4Pow::GetInstance(), G4V3DNucleus::GetMassNumber(), MeV, G4VNuclearField::theNucleus, Z, and G4Pow::Z13().

Referenced by GetField().

◆ GetCoeff()

virtual G4double G4PionPlusField::GetCoeff ( )
inlinevirtual

Reimplemented from G4VNuclearField.

Definition at line 62 of file G4PionPlusField.hh.

62{ return theCoeff; }

References theCoeff.

◆ GetField()

G4double G4PionPlusField::GetField ( const G4ThreeVector &  aPosition)
virtual

Implements G4VNuclearField.

Definition at line 59 of file G4PionPlusField.cc.

60{
61// Field is 0 out of the nucleus!
62 if(aPosition.mag() >= radius) return 0.0;
63
64 G4double pionPlusMass = G4PionPlus::PionPlus()->GetPDGMass();
65
66 G4int A = theNucleus->GetMassNumber();
67 G4int Z = theNucleus->GetCharge();
68 G4double bindingEnergy = G4NucleiProperties::GetBindingEnergy(A, Z);
69 G4double nucleusMass = Z*proton_mass_c2+(A-Z)*neutron_mass_c2+bindingEnergy;
70 G4double reducedMass = pionPlusMass*nucleusMass/(pionPlusMass+nucleusMass);
71
72 G4double density = A*theNucleus->GetNuclearDensity()->GetDensity(aPosition);
73 G4double nucleonMass = (proton_mass_c2+neutron_mass_c2)/2;
74
75 return 2.*pi*hbarc*hbarc/reducedMass*(1+pionPlusMass/nucleonMass)*theCoeff*density + GetBarrier();
76}
pi
static constexpr double pi
Definition: G4SIunits.hh:55
CLHEP::Hep3Vector::mag
double mag() const
G4NucleiProperties::GetBindingEnergy
static G4double GetBindingEnergy(const G4int A, const G4int Z)
Definition: G4NucleiProperties.cc:246
G4PionPlusField::GetBarrier
virtual G4double GetBarrier()
Definition: G4PionPlusField.cc:79
G4PionPlus::PionPlus
static G4PionPlus * PionPlus()
Definition: G4PionPlus.cc:97
G4V3DNucleus::GetNuclearDensity
virtual const G4VNuclearDensity * GetNuclearDensity() const =0
G4VNuclearDensity::GetDensity
G4double GetDensity(const G4ThreeVector &aPosition) const
Definition: G4VNuclearDensity.hh:42
G4VNuclearField::radius
const G4double radius
Definition: G4VNuclearField.hh:48
G4InuclSpecialFunctions::bindingEnergy
G4double bindingEnergy(G4int A, G4int Z)
Definition: bindingEnergy.cc:36
source.hepunit.proton_mass_c2
float proton_mass_c2
Definition: hepunit.py:274
source.hepunit.hbarc
float hbarc
Definition: hepunit.py:264
source.hepunit.neutron_mass_c2
float neutron_mass_c2
Definition: hepunit.py:275

References A, G4InuclSpecialFunctions::bindingEnergy(), GetBarrier(), G4NucleiProperties::GetBindingEnergy(), G4V3DNucleus::GetCharge(), G4VNuclearDensity::GetDensity(), G4V3DNucleus::GetMassNumber(), G4V3DNucleus::GetNuclearDensity(), G4ParticleDefinition::GetPDGMass(), source.hepunit::hbarc, CLHEP::Hep3Vector::mag(), source.hepunit::neutron_mass_c2, pi, G4PionPlus::PionPlus(), source.hepunit::proton_mass_c2, G4VNuclearField::radius, theCoeff, G4VNuclearField::theNucleus, and Z.

◆ operator!=()

G4bool G4PionPlusField::operator!= ( const G4PionPlusField &  right) const
private

◆ operator=()

const G4PionPlusField & G4PionPlusField::operator= ( const G4PionPlusField &  right)
private

◆ operator==()

G4bool G4PionPlusField::operator== ( const G4PionPlusField &  right) const
private

◆ SetNucleus()

void G4VNuclearField::SetNucleus ( G4V3DNucleus *  aNucleus)
inlineinherited

Definition at line 61 of file G4VNuclearField.hh.

62{
63 theNucleus = aNucleus;
64}

References G4VNuclearField::theNucleus.

Field Documentation

◆ radius

const G4double G4VNuclearField::radius
protectedinherited

Definition at line 48 of file G4VNuclearField.hh.

Referenced by G4AntiProtonField::GetField(), G4KaonMinusField::GetField(), G4KaonPlusField::GetField(), G4KaonZeroField::GetField(), G4PionMinusField::GetField(), GetField(), G4PionZeroField::GetField(), G4SigmaMinusField::GetField(), G4SigmaPlusField::GetField(), and G4SigmaZeroField::GetField().

◆ theCoeff

G4double G4PionPlusField::theCoeff
private

Definition at line 65 of file G4PionPlusField.hh.

Referenced by G4PionPlusField(), GetCoeff(), and GetField().

◆ theNucleus

G4V3DNucleus* G4VNuclearField::theNucleus
protectedinherited

Definition at line 47 of file G4VNuclearField.hh.

Referenced by G4NeutronField::G4NeutronField(), G4ProtonField::G4ProtonField(), G4AntiProtonField::GetBarrier(), G4KaonMinusField::GetBarrier(), G4KaonPlusField::GetBarrier(), G4PionMinusField::GetBarrier(), GetBarrier(), G4SigmaMinusField::GetBarrier(), G4SigmaPlusField::GetBarrier(), G4AntiProtonField::GetField(), G4KaonMinusField::GetField(), G4KaonPlusField::GetField(), G4KaonZeroField::GetField(), G4PionMinusField::GetField(), GetField(), G4PionZeroField::GetField(), G4SigmaMinusField::GetField(), G4SigmaPlusField::GetField(), G4SigmaZeroField::GetField(), and G4VNuclearField::SetNucleus().

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