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26 // 26 //
27 // 27 //
28 // Hadronic Process: Nuclear De-excitations 28 // Hadronic Process: Nuclear De-excitations
29 // by V. Lara 29 // by V. Lara
30 30
31 31
32 #include "G4StatMFParameters.hh" 32 #include "G4StatMFParameters.hh"
33 #include "G4SystemOfUnits.hh" 33 #include "G4SystemOfUnits.hh"
34 #include "G4PhysicalConstants.hh" 34 #include "G4PhysicalConstants.hh"
35 35
36 const G4double G4StatMFParameters::fKappa = 1. 36 const G4double G4StatMFParameters::fKappa = 1.0; // dimensionless
37 37
38 const G4double G4StatMFParameters::fKappaCoulo 38 const G4double G4StatMFParameters::fKappaCoulomb = 2.0; // dimensionless
39 39
40 const G4double G4StatMFParameters::fEpsilon0 = 40 const G4double G4StatMFParameters::fEpsilon0 = 16.0*MeV;
41 41
42 // Bethe-Weizsacker coefficients 42 // Bethe-Weizsacker coefficients
43 const G4double G4StatMFParameters::fE0 = 16.0* 43 const G4double G4StatMFParameters::fE0 = 16.0*MeV;
44 44
45 const G4double G4StatMFParameters::fBeta0 = 18 45 const G4double G4StatMFParameters::fBeta0 = 18.0*MeV;
46 46
47 const G4double G4StatMFParameters::fGamma0 = 2 47 const G4double G4StatMFParameters::fGamma0 = 25.0*MeV;
48 48
49 // Critical temperature (for liquid-gas phase 49 // Critical temperature (for liquid-gas phase transitions)
50 const G4double G4StatMFParameters::fCriticalTe 50 const G4double G4StatMFParameters::fCriticalTemp = 18.0*MeV;
51 51
52 // Nuclear radius 52 // Nuclear radius
53 const G4double G4StatMFParameters::fr0 = 1.17* 53 const G4double G4StatMFParameters::fr0 = 1.17*fermi;
54 54
55 const G4double G4StatMFParameters::fCoulomb = 55 const G4double G4StatMFParameters::fCoulomb = 0.6*(CLHEP::elm_coupling/fr0)*
56 (1.0 - 1.0/std::pow(1.0+fKappaCoulomb,1./3.) 56 (1.0 - 1.0/std::pow(1.0+fKappaCoulomb,1./3.));
57 57
58 G4StatMFParameters::G4StatMFParameters() 58 G4StatMFParameters::G4StatMFParameters()
59 {} 59 {}
60 60
61 G4StatMFParameters::~G4StatMFParameters() 61 G4StatMFParameters::~G4StatMFParameters()
62 {} 62 {}
63 63
64 G4double G4StatMFParameters::GetKappa() 64 G4double G4StatMFParameters::GetKappa()
65 { 65 {
66 return fKappa; 66 return fKappa;
67 } 67 }
68 68
69 G4double G4StatMFParameters::GetKappaCoulomb() 69 G4double G4StatMFParameters::GetKappaCoulomb()
70 { 70 {
71 return fKappaCoulomb; 71 return fKappaCoulomb;
72 } 72 }
73 73
74 G4double G4StatMFParameters::GetEpsilon0() 74 G4double G4StatMFParameters::GetEpsilon0()
75 { 75 {
76 return fEpsilon0; 76 return fEpsilon0;
77 } 77 }
78 78
79 G4double G4StatMFParameters::GetE0() 79 G4double G4StatMFParameters::GetE0()
80 { 80 {
81 return fE0; 81 return fE0;
82 } 82 }
83 83
84 G4double G4StatMFParameters::GetBeta0() 84 G4double G4StatMFParameters::GetBeta0()
85 { 85 {
86 return fBeta0; 86 return fBeta0;
87 } 87 }
88 88
89 G4double G4StatMFParameters::GetGamma0() 89 G4double G4StatMFParameters::GetGamma0()
90 { 90 {
91 return fGamma0; 91 return fGamma0;
92 } 92 }
93 93
94 G4double G4StatMFParameters::GetCriticalTemp() 94 G4double G4StatMFParameters::GetCriticalTemp()
95 { 95 {
96 return fCriticalTemp; 96 return fCriticalTemp;
97 } 97 }
98 98
99 G4double G4StatMFParameters::Getr0() 99 G4double G4StatMFParameters::Getr0()
100 { 100 {
101 return fr0; 101 return fr0;
102 } 102 }
103 103
104 G4double G4StatMFParameters::GetCoulomb() 104 G4double G4StatMFParameters::GetCoulomb()
105 { 105 {
106 return fCoulomb; 106 return fCoulomb;
107 } 107 }
108 108
109 G4double G4StatMFParameters::Beta(G4double T) 109 G4double G4StatMFParameters::Beta(G4double T)
110 { 110 {
111 G4double res = 0.0; 111 G4double res = 0.0;
112 if (T < fCriticalTemp) { 112 if (T < fCriticalTemp) {
113 G4double CriticalTempSqr = fCriticalTemp*f 113 G4double CriticalTempSqr = fCriticalTemp*fCriticalTemp;
114 G4double TempSqr = T*T; 114 G4double TempSqr = T*T;
115 G4double tmp = (CriticalTempSqr-TempSqr)/( 115 G4double tmp = (CriticalTempSqr-TempSqr)/(CriticalTempSqr+TempSqr);
116 116
117 res = fBeta0*tmp*std::pow(tmp,0.25); 117 res = fBeta0*tmp*std::pow(tmp,0.25);
118 } 118 }
119 return res; 119 return res;
120 } 120 }
121 121
122 G4double G4StatMFParameters::DBetaDT(G4double 122 G4double G4StatMFParameters::DBetaDT(G4double T)
123 { 123 {
124 G4double res = 0.0; 124 G4double res = 0.0;
125 if (T < fCriticalTemp) { 125 if (T < fCriticalTemp) {
126 G4double CriticalTempSqr = fCriticalTemp*f 126 G4double CriticalTempSqr = fCriticalTemp*fCriticalTemp;
127 G4double TempSqr = T*T; 127 G4double TempSqr = T*T;
128 G4double tmp = (CriticalTempSqr-TempSqr)/( 128 G4double tmp = (CriticalTempSqr-TempSqr)/(CriticalTempSqr+TempSqr);
129 129
130 res = -5.0*fBeta0*std::pow(tmp,0.25)*(Crit 130 res = -5.0*fBeta0*std::pow(tmp,0.25)*(CriticalTempSqr*T)/
131 ((CriticalTempSqr+TempSqr)*(CriticalTemp 131 ((CriticalTempSqr+TempSqr)*(CriticalTempSqr+TempSqr));
132 } 132 }
133 return res; 133 return res;
134 } 134 }
135 135
136 G4double 136 G4double
137 G4StatMFParameters::GetMaxAverageMultiplicity( 137 G4StatMFParameters::GetMaxAverageMultiplicity(G4int A)
138 { 138 {
139 // Maximun average multiplicity: M_0 = 2.6 f 139 // Maximun average multiplicity: M_0 = 2.6 for A ~ 200
140 // and M_0 = 3.3 for A <= 110 140 // and M_0 = 3.3 for A <= 110
141 G4double MaxAverageMultiplicity = 2.6; 141 G4double MaxAverageMultiplicity = 2.6;
142 if (A <= 110) { MaxAverageMultiplicity = 3.3 142 if (A <= 110) { MaxAverageMultiplicity = 3.3; }
143 return MaxAverageMultiplicity; 143 return MaxAverageMultiplicity;
144 } 144 }
145 145
146 146