Geant4  10.01.p02
G4KaonPlusField.cc
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28 // GEANT 4 class implementation file
29 //
30 // CERN, Geneva, Switzerland
31 //
32 // File name: G4KaonPlusField.cc
33 //
34 // Author: Alessandro Brunengo (Alessandro.Brunengo@ge.infn.it)
35 //
36 // Creation date: 5 June 2000
37 // -------------------------------------------------------------------
38 
39 #include "G4KaonPlusField.hh"
40 #include "G4PhysicalConstants.hh"
41 #include "G4SystemOfUnits.hh"
42 #include "G4NucleiProperties.hh"
43 #include "G4VNuclearDensity.hh"
44 #include "G4FermiMomentum.hh"
45 #include "G4KaonPlus.hh"
46 #include "G4HadTmpUtil.hh"
47 
49  : G4VNuclearField(nucleus)
50 {
51  theCoeff = coeff;
52 }
53 
54 
56 { }
57 
59 {
60 // Field is 0 out of the nucleus!
61  if(aPosition.mag() >= radius) return 0.0;
62 
64 
66  G4int Z = theNucleus->GetCharge();
68  G4double nucleusMass = Z*proton_mass_c2+(A-Z)*neutron_mass_c2+bindingEnergy;
69  G4double reducedMass = kaonMass*nucleusMass/(kaonMass+nucleusMass);
70 
72 
73  return -2.*pi*hbarc*hbarc/reducedMass*(2.0)*theCoeff*density+GetBarrier();
74 }
75 
77 {
79  G4int Z = theNucleus->GetCharge();
80  G4double coulombBarrier = (1.44/1.14) * MeV * Z / (1.0 + std::pow(A,1./3.));
81  return coulombBarrier;
82 }
83 
84 
virtual G4double GetBarrier()
static const double MeV
Definition: G4SIunits.hh:193
virtual G4int GetCharge()=0
CLHEP::Hep3Vector G4ThreeVector
virtual const G4VNuclearDensity * GetNuclearDensity() const =0
const G4double pi
virtual G4int GetMassNumber()=0
virtual ~G4KaonPlusField()
int G4int
Definition: G4Types.hh:78
G4double density
Definition: TRTMaterials.hh:39
virtual G4double GetField(const G4ThreeVector &aPosition)
static const G4double A[nN]
const G4double radius
G4double GetPDGMass() const
G4double GetDensity(const G4ThreeVector &aPosition) const
static G4double GetBindingEnergy(const G4int A, const G4int Z)
G4V3DNucleus * theNucleus
double G4double
Definition: G4Types.hh:76
G4KaonPlusField(G4V3DNucleus *nucleus, G4double coeff=0.35 *CLHEP::fermi)
static G4KaonPlus * KaonPlus()
Definition: G4KaonPlus.cc:113
G4double bindingEnergy(G4int A, G4int Z)