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25 // 25 //
26 // G4HyperNucleiProperties class implementatio << 26 // $Id: G4HyperNucleiProperties.cc 67971 2013-03-13 10:13:24Z gcosmo $
>> 27 //
>> 28 // ------------------------------------------------------------
>> 29 // GEANT 4 class header file
27 // 30 //
28 // Author: Mikhail Kosov << 31 // ------------------------------------------------------------
29 // Revision: H.Kurashige, Migrated to particle << 32 // Hyper Nuclei properties based on CHIPS model (Mikhail KOSOV)
30 // ------------------------------------------- << 33 // Migrate into particles category by H.Kurashige (Sep. 2007)
31 << 34 //
>> 35 #include "G4PhysicalConstants.hh"
>> 36 #include "G4SystemOfUnits.hh"
32 #include "G4HyperNucleiProperties.hh" 37 #include "G4HyperNucleiProperties.hh"
33 <<
34 #include "G4Exp.hh" <<
35 #include "G4NucleiProperties.hh" 38 #include "G4NucleiProperties.hh"
36 #include "G4ParticleTable.hh" 39 #include "G4ParticleTable.hh"
37 #include "G4PhysicalConstants.hh" <<
38 #include "G4Pow.hh" <<
39 #include "G4SystemOfUnits.hh" <<
40 40
41 G4double G4HyperNucleiProperties::GetNuclearMa <<
42 { <<
43 if (LL == 0) return G4NucleiProperties::GetN <<
44 41
45 if (A < 2 || Z < 0 || Z > A - LL || LL > A) << 42 G4double G4HyperNucleiProperties::GetNuclearMass(G4int A, G4int Z, G4int L)
>> 43 {
>> 44 if (L==0) return G4NucleiProperties::GetNuclearMass(A, Z);
>> 45
>> 46 G4ParticleTable* pTable = G4ParticleTable::GetParticleTable();
>> 47 if (A < 2 || Z < 0 || Z > A-L || L>A ) {
46 #ifdef G4VERBOSE 48 #ifdef G4VERBOSE
47 if (G4ParticleTable::GetParticleTable()->G << 49 if (pTable->GetVerboseLevel()>0) {
48 G4cout << "G4HyperNucleiProperties::GetN 50 G4cout << "G4HyperNucleiProperties::GetNuclearMass: "
49 << " Wrong values for A = " << A << 51 << " Wrong values for A = " << A
>> 52 << " Z = " << Z
>> 53 << " L = " << L
>> 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 = " << L
>> 65 << G4endl;
50 } 66 }
51 #endif 67 #endif
52 return 0.0; 68 return 0.0;
53 } 69 }
54 if (A == 2) { << 70
>> 71
>> 72 G4ParticleDefinition* lambda = pTable->FindParticle("lambda");
>> 73 if (lambda ==0) {
55 #ifdef G4VERBOSE 74 #ifdef G4VERBOSE
56 if (G4ParticleTable::GetParticleTable()->G << 75 if (pTable->GetVerboseLevel()>0) {
57 G4cout << "G4HyperNucleiProperties::GetN 76 G4cout << "G4HyperNucleiProperties::GetNuclearMass: "
58 << " No boud state for A = " << A << 77 << " Lambda is not defined " << G4endl;
59 } 78 }
60 #endif 79 #endif
61 return 0.0; 80 return 0.0;
62 } 81 }
>> 82 const G4double mL= lambda->GetPDGMass(); // mLambda
63 83
64 static const G4double b7 = 25.0 * MeV; << 84 static const G4double b7=25.*MeV;
65 static const G4double b8 = 10.5; // Slope << 85 static const G4double b8=10.5; // Slope
66 static const G4double a2 = 0.13 * MeV; // B << 86 static const G4double a2=0.13*MeV; // BindingEnergy for d+Lambda(MeV)
67 static const G4double a3 = 2.2 * MeV; // Bi << 87 static const G4double a3=2.2*MeV; // BindingEnergy for (t/He3)+Lamb(MeV)
68 static const G4double eps = 0.0001 * MeV; / << 88 static const G4double eps =0.0001*MeV; // security value (MeV)
69 << 89
70 G4double mass = G4NucleiProperties::GetNucle << 90 G4double mass = G4NucleiProperties::GetNuclearMass(A-L, Z);
71 << 91 // A non-"strange" nucleus
72 // Temporarily, the mass of the Lambda below << 92 G4double bs=0.;
73 // but it should be added in CLHEP/Units/Phy << 93 if (A-L ==2) bs=a2; // for nnL,npL,ppL
74 const G4double mLL = 1.115683 * CLHEP::GeV; << 94 else if(A-L ==3) bs=a3; // for 3nL,2npL,n2pL,3pL
75 << 95 else if(A-L >3) bs=b7*std::exp(-b8/(A-L+1.));
76 G4double bs = 0.0; << 96 mass += L*(mL-bs) + eps;
77 if (A - LL == 2) <<
78 bs = a2; // for nnL,npL,ppL <<
79 else if (A - LL == 3) <<
80 bs = a3; // for 3nL,2npL,n2pL,3pL <<
81 else if (A - LL > 3) <<
82 bs = b7 * G4Exp(-b8 / (A - LL + 1.0)); <<
83 mass += LL * (mLL - bs) + eps; <<
84 97
85 return mass; 98 return mass;
86 } 99 }
87 100
88 G4double G4HyperNucleiProperties::GetAtomicMas << 101
>> 102 G4double G4HyperNucleiProperties::GetAtomicMass(G4int A, G4int Z, G4int L)
89 { 103 {
90 G4double mass = GetNuclearMass(A, Z, LL); << 104 if (A < 1 || Z < 0 || Z > A-L || L > A || L <0 ) {
91 if (mass > 0.0) { << 105 #ifdef G4VERBOSE
92 mass += Z * electron_mass_c2 - 1.433e-5 * << 106 if (G4ParticleTable::GetParticleTable()->GetVerboseLevel()>0) {
>> 107 G4cout << "G4HyperNucleiProperties::GetAtomicMass: "
>> 108 << " Wrong values for A = " << A
>> 109 << " Z = " << Z
>> 110 << " L = " << L << G4endl;
>> 111 }
>> 112 #endif
>> 113 return 0.0;
>> 114
>> 115 } else {
>> 116 G4double nuclearMass = GetNuclearMass(A, Z, L);
>> 117 return nuclearMass + Z*electron_mass_c2
>> 118 - 1.433e-5*MeV*std::pow(G4double(Z),2.39);
93 } 119 }
94 return mass; <<
95 } 120 }
>> 121
96 122