Geant4  10.00.p01
G4KaonMinusField.cc
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28 // GEANT 4 class implementation file
29 //
30 // CERN, Geneva, Switzerland
31 //
32 // File name: G4KaonMinusField.cc
33 //
34 // Author: Alessandro Brunengo (Alessandro.Brunengo@ge.infn.it)
35 //
36 // Creation date: 5 June 2000
37 // -------------------------------------------------------------------
38 
39 #include "G4KaonMinusField.hh"
40 #include "G4PhysicalConstants.hh"
41 #include "G4SystemOfUnits.hh"
42 #include "G4NucleiProperties.hh"
43 #include "G4VNuclearDensity.hh"
44 #include "G4FermiMomentum.hh"
45 #include "G4KaonMinus.hh"
46 #include "G4HadTmpUtil.hh"
47 
49  : G4VNuclearField(nucleus)
50 {
51  theCoeff = coeff;
52 }
53 
54 
56 { }
57 
58 
60 {
61 // Field is 0 out of the nucleus!
62  if(aPosition.mag() >= radius) return 0.0;
63 
65 
67  G4int Z = theNucleus->GetCharge();
69  G4double nucleusMass = Z*proton_mass_c2+(A-Z)*neutron_mass_c2+bindingEnergy;
70  G4double reducedMass = kaonMass*nucleusMass/(kaonMass+nucleusMass);
71 
73 
74  return -2.*pi*hbarc*hbarc/reducedMass*(2.0)*theCoeff*density+GetBarrier();
75 }
76 
77 
79 {
81  G4int Z = theNucleus->GetCharge();
82  G4double coulombBarrier = (1.44/1.14) * MeV * Z / (1.0 + std::pow(A,1./3.));
83  return -coulombBarrier;
84 }
85 
virtual G4double GetBarrier()
static const double MeV
Definition: G4SIunits.hh:193
virtual G4int GetCharge()=0
virtual G4double GetField(const G4ThreeVector &aPosition)
CLHEP::Hep3Vector G4ThreeVector
virtual const G4VNuclearDensity * GetNuclearDensity() const =0
const G4double pi
virtual G4int GetMassNumber()=0
int G4int
Definition: G4Types.hh:78
static G4KaonMinus * KaonMinus()
Definition: G4KaonMinus.cc:113
G4double density
Definition: TRTMaterials.hh:39
static const G4double A[nN]
G4KaonMinusField(G4V3DNucleus *nucleus, G4double coeff=0.35 *CLHEP::fermi)
const G4double radius
G4double GetPDGMass() const
G4double GetDensity(const G4ThreeVector &aPosition) const
static G4double GetBindingEnergy(const G4int A, const G4int Z)
G4V3DNucleus * theNucleus
virtual ~G4KaonMinusField()
double G4double
Definition: G4Types.hh:76
G4double bindingEnergy(G4int A, G4int Z)