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G4HyperNucleiProperties.cc
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26 // $Id: G4HyperNucleiProperties.cc 94091 2015-11-05 15:13:52Z gcosmo $
27 //
28 // ------------------------------------------------------------
29 // GEANT 4 class header file
30 //
31 // ------------------------------------------------------------
32 // Hyper Nuclei properties based on CHIPS model (Mikhail KOSOV)
33 // Migrate into particles category by H.Kurashige (Sep. 2007)
34 //
35 #include "G4PhysicalConstants.hh"
36 #include "G4SystemOfUnits.hh"
38 #include "G4NucleiProperties.hh"
39 #include "G4ParticleTable.hh"
40 
41 
43 {
44  if (LL==0) return G4NucleiProperties::GetNuclearMass(A, Z);
45 
47  if (A < 2 || Z < 0 || Z > A-LL || LL>A ) {
48 #ifdef G4VERBOSE
49  if (pTable->GetVerboseLevel()>0) {
50  G4cout << "G4HyperNucleiProperties::GetNuclearMass: "
51  << " Wrong values for A = " << A
52  << " Z = " << Z
53  << " L = " << LL
54  << G4endl;
55  }
56 #endif
57  return 0.0;
58  } else if( A==2 ) {
59 #ifdef G4VERBOSE
60  if (pTable->GetVerboseLevel()>0) {
61  G4cout << "G4HyperNucleiProperties::GetNuclearMass: "
62  << " No boud state for A = " << A
63  << " Z = " << Z
64  << " L = " << LL
65  << G4endl;
66  }
67 #endif
68  return 0.0;
69  }
70 
71 
72  G4ParticleDefinition* lambda = pTable->FindParticle("lambda");
73  if (lambda ==0) {
74 #ifdef G4VERBOSE
75  if (pTable->GetVerboseLevel()>0) {
76  G4cout << "G4HyperNucleiProperties::GetNuclearMass: "
77  << " Lambda is not defined " << G4endl;
78  }
79 #endif
80  return 0.0;
81  }
82  const G4double mLL= lambda->GetPDGMass(); // mLambda
83 
84  static const G4double b7=25.*MeV;
85  static const G4double b8=10.5; // Slope
86  static const G4double a2=0.13*MeV; // BindingEnergy for d+Lambda(MeV)
87  static const G4double a3=2.2*MeV; // BindingEnergy for (t/He3)+Lamb(MeV)
88  static const G4double eps =0.0001*MeV; // security value (MeV)
89 
91  // A non-"strange" nucleus
92  G4double bs=0.;
93  if (A-LL ==2) bs=a2; // for nnL,npL,ppL
94  else if(A-LL ==3) bs=a3; // for 3nL,2npL,n2pL,3pL
95  else if(A-LL >3) bs=b7*std::exp(-b8/(A-LL+1.));
96  mass += LL*(mLL-bs) + eps;
97 
98  return mass;
99 }
100 
101 
103 {
104  if (A < 1 || Z < 0 || Z > A-LL || LL > A || LL <0 ) {
105 #ifdef G4VERBOSE
106  if (G4ParticleTable::GetParticleTable()->GetVerboseLevel()>0) {
107  G4cout << "G4HyperNucleiProperties::GetAtomicMass: "
108  << " Wrong values for A = " << A
109  << " Z = " << Z
110  << " L = " << LL << G4endl;
111  }
112 #endif
113  return 0.0;
114 
115  } else {
116  G4double nuclearMass = GetNuclearMass(A, Z, LL);
117  return nuclearMass + Z*electron_mass_c2
118  - 1.433e-5*MeV*std::pow(G4double(Z),2.39);
119  }
120 }
121 
G4ParticleDefinition * FindParticle(G4int PDGEncoding)
static G4ParticleTable * GetParticleTable()
static constexpr double MeV
Definition: G4SIunits.hh:214
static const G4int LL[nN]
#define G4endl
Definition: G4ios.hh:61
G4double GetPDGMass() const
Float_t Z
double G4double
Definition: G4Types.hh:76
static constexpr double electron_mass_c2
G4int GetVerboseLevel() const
double A(double temperature)
static G4double GetNuclearMass(const G4double A, const G4double Z)
static G4double GetNuclearMass(G4int A, G4int Z, G4int L)
static G4double GetAtomicMass(G4int A, G4int Z, G4int L)
int G4int
Definition: G4Types.hh:78
G4GLOB_DLL std::ostream G4cout
static const G4double eps
static const G4int mLL