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>> 27 // $Id: G4StatMFMacroMultiNucleon.cc,v 1.7 2008-11-19 14:33:31 vnivanch Exp $
>> 28 // GEANT4 tag $Name: geant4-09-04-patch-02 $
27 // 29 //
28 // Hadronic Process: Nuclear De-excitations 30 // Hadronic Process: Nuclear De-excitations
29 // by V. Lara 31 // by V. Lara
30 // 32 //
31 // Modified: 33 // Modified:
32 // 25.07.08 I.Pshenichnov (in collaboration wi 34 // 25.07.08 I.Pshenichnov (in collaboration with Alexander Botvina and Igor
33 // Mishustin (FIAS, Frankfurt, INR, M 35 // Mishustin (FIAS, Frankfurt, INR, Moscow and Kurchatov Institute,
34 // Moscow, pshenich@fias.uni-frankfur 36 // Moscow, pshenich@fias.uni-frankfurt.de) fixed computation of the
35 // symmetry energy 37 // symmetry energy
36 38
37 #include "G4StatMFMacroMultiNucleon.hh" 39 #include "G4StatMFMacroMultiNucleon.hh"
38 #include "G4PhysicalConstants.hh" <<
39 #include "G4SystemOfUnits.hh" <<
40 #include "G4Log.hh" <<
41 #include "G4Exp.hh" <<
42 #include "G4Pow.hh" <<
43 40
44 // Default constructor 41 // Default constructor
45 G4StatMFMacroMultiNucleon:: 42 G4StatMFMacroMultiNucleon::
46 G4StatMFMacroMultiNucleon() : 43 G4StatMFMacroMultiNucleon() :
47 G4VStatMFMacroCluster(0) // Beacuse the d 44 G4VStatMFMacroCluster(0) // Beacuse the def. constr. of base class is private
48 { 45 {
49 throw G4HadronicException(__FILE__, __LINE << 46 throw G4HadronicException(__FILE__, __LINE__, "G4StatMFMacroMultiNucleon::default_constructor meant to not be accessable");
50 } 47 }
51 48
52 // Copy constructor 49 // Copy constructor
53 G4StatMFMacroMultiNucleon:: 50 G4StatMFMacroMultiNucleon::
54 G4StatMFMacroMultiNucleon(const G4StatMFMacroM 51 G4StatMFMacroMultiNucleon(const G4StatMFMacroMultiNucleon & ) :
55 G4VStatMFMacroCluster(0) // Beacuse the d 52 G4VStatMFMacroCluster(0) // Beacuse the def. constr. of base class is private
56 { 53 {
57 throw G4HadronicException(__FILE__, __LINE << 54 throw G4HadronicException(__FILE__, __LINE__, "G4StatMFMacroMultiNucleon::copy_constructor meant to not be accessable");
58 } 55 }
59 56
60 // Operators 57 // Operators
61 58
62 G4StatMFMacroMultiNucleon & G4StatMFMacroMulti 59 G4StatMFMacroMultiNucleon & G4StatMFMacroMultiNucleon::
63 operator=(const G4StatMFMacroMultiNucleon & ) 60 operator=(const G4StatMFMacroMultiNucleon & )
64 { 61 {
65 throw G4HadronicException(__FILE__, __LINE << 62 throw G4HadronicException(__FILE__, __LINE__, "G4StatMFMacroMultiNucleon::operator= meant to not be accessable");
66 return *this; 63 return *this;
67 } 64 }
68 65
>> 66
69 G4bool G4StatMFMacroMultiNucleon::operator==(c 67 G4bool G4StatMFMacroMultiNucleon::operator==(const G4StatMFMacroMultiNucleon & ) const
70 { 68 {
71 throw G4HadronicException(__FILE__, __LINE << 69 throw G4HadronicException(__FILE__, __LINE__, "G4StatMFMacroMultiNucleon::operator== meant to not be accessable");
72 return false; 70 return false;
73 } 71 }
74 72
>> 73
75 G4bool G4StatMFMacroMultiNucleon::operator!=(c 74 G4bool G4StatMFMacroMultiNucleon::operator!=(const G4StatMFMacroMultiNucleon & ) const
76 { 75 {
77 throw G4HadronicException(__FILE__, __LINE << 76 throw G4HadronicException(__FILE__, __LINE__, "G4StatMFMacroMultiNucleon::operator!= meant to not be accessable");
78 return true; 77 return true;
79 } 78 }
80 79
81 G4double G4StatMFMacroMultiNucleon::CalcMeanMu << 80
82 const G4double mu, << 81
83 const G4double nu, << 82 G4double G4StatMFMacroMultiNucleon::CalcMeanMultiplicity(const G4double FreeVol, const G4double mu,
84 const G4double T) << 83 const G4double nu, const G4double T)
85 { << 84 {
86 G4double ThermalWaveLenght = 16.15*fermi/std << 85 const G4double ThermalWaveLenght = 16.15*fermi/std::sqrt(T);
87 G4double lambda3 = ThermalWaveLenght*Thermal << 86
88 G4Pow* g4calc = G4Pow::GetInstance(); << 87 const G4double lambda3 = ThermalWaveLenght*ThermalWaveLenght*ThermalWaveLenght;
89 G4double A23 = g4calc->Z23(theA); << 88
90 << 89 const G4double A23 = std::pow(static_cast<G4double>(theA),2./3.);
91 G4double exponent = (mu + nu*theZARatio+ G4S << 90
92 + T*T/_InvLevelDensity << 91 const G4double Coulomb = (3./5.)*(elm_coupling/G4StatMFParameters::Getr0())*
93 - G4StatMFParameters::GetGamma0()*( << 92 (1.0 - 1.0/std::pow(1.0+G4StatMFParameters::GetKappaCoulomb(),1./3.));
94 (1.0 - 2.0*theZARatio))*theA << 93
95 - G4StatMFParameters::Beta(T)*A23 << 94 G4double exponent = (mu + nu*theZARatio+ G4StatMFParameters::GetE0() + T*T/_InvLevelDensity
96 - G4StatMFParameters::GetCoulomb()*theZARa << 95 - G4StatMFParameters::GetGamma0()*(1.0 - 2.0*theZARatio)*
97 << 96 (1.0 - 2.0*theZARatio))*theA
98 exponent /= T; << 97 - G4StatMFParameters::Beta(T)*A23 - Coulomb*theZARatio*theZARatio*A23*theA;
99 << 98
100 if (exponent > 30.0) exponent = 30.0; << 99 exponent /= T;
101 << 100
102 _MeanMultiplicity = std::max((FreeVol * theA << 101 if (exponent > 30.0) exponent = 30.0;
103 G4Exp(exponent),1.0e-30); << 102
104 return _MeanMultiplicity; << 103 _MeanMultiplicity = std::max((FreeVol * static_cast<G4double>(theA) *
>> 104 std::sqrt(static_cast<G4double>(theA))/lambda3) *
>> 105 std::exp(exponent),1.0e-30);
>> 106 return _MeanMultiplicity;
105 } 107 }
106 108
>> 109
107 G4double G4StatMFMacroMultiNucleon::CalcZARati 110 G4double G4StatMFMacroMultiNucleon::CalcZARatio(const G4double nu)
108 { 111 {
109 G4double den = 8*G4StatMFParameters::GetGamm << 112 const G4double Coulomb = (3./5.)*(elm_coupling/G4StatMFParameters::Getr0())*
110 + 2*G4StatMFParameters::GetCoulomb()*G4Pow << 113 (1.0 - 1.0/std::pow(1.0+G4StatMFParameters::GetKappaCoulomb(),1./3.));
111 theZARatio = (4.0*G4StatMFParameters::GetGam << 114
112 return theZARatio; << 115 G4double den = 8.0*G4StatMFParameters::GetGamma0()+2.0*Coulomb*std::pow(static_cast<G4double>(theA),2./3.);
>> 116 G4double num = 4.0*G4StatMFParameters::GetGamma0()+nu;
>> 117
>> 118 return theZARatio = num/den;
>> 119
>> 120
113 } 121 }
114 122
>> 123
>> 124
115 G4double G4StatMFMacroMultiNucleon::CalcEnergy 125 G4double G4StatMFMacroMultiNucleon::CalcEnergy(const G4double T)
116 { 126 {
117 G4Pow* g4calc = G4Pow::GetInstance(); << 127 const G4double Coulomb = (3./5.)*(elm_coupling/G4StatMFParameters::Getr0())*
118 G4double A23 = g4calc->Z23(theA); << 128 (1.0 - 1.0/std::pow(1.0+G4StatMFParameters::GetKappaCoulomb(),1./3.));
>> 129
>> 130 const G4double A23 = std::pow(static_cast<G4double>(theA),2./3.);
119 131
120 // Volume term << 132 // Volume term
121 G4double EVol = theA * (T*T/_InvLevelDensity << 133 G4double EVol = static_cast<G4double>(theA) * (T*T/_InvLevelDensity - G4StatMFParameters::GetE0());
122 134
123 // Symmetry term << 135 // Symmetry term
124 G4double ESym = theA * G4StatMFParameters::G << 136 G4double ESym = static_cast<G4double>(theA) * G4StatMFParameters::GetGamma0() *(1. - 2.* theZARatio) * (1. - 2.* theZARatio);
125 *(1. - 2.* theZARatio) * (1. - 2.* theZARa <<
126 137
127 // Surface term << 138 // Surface term
128 G4double ESurf = A23*(G4StatMFParameters::Be << 139 G4double ESurf = A23*(G4StatMFParameters::Beta(T) - T*G4StatMFParameters::DBetaDT(T));
129 140
130 // Coulomb term << 141 // Coulomb term
131 G4double ECoul = G4StatMFParameters::GetCoul << 142 G4double ECoul = Coulomb*A23*static_cast<G4double>(theA)*theZARatio*theZARatio;
132 143
133 // Translational term << 144 // Translational term
134 G4double ETrans = 1.5*T; << 145 G4double ETrans = (3./2.)*T;
135 return _Energy = EVol + ESurf + ECoul + ETra << 146
>> 147
>> 148 return _Energy = EVol + ESurf + ECoul + ETrans + ESym;
136 } 149 }
137 150
138 G4double G4StatMFMacroMultiNucleon::CalcEntrop << 151
139 const G4double FreeVol) << 152 G4double G4StatMFMacroMultiNucleon::CalcEntropy(const G4double T, const G4double FreeVol)
140 { 153 {
141 G4double Entropy = 0.0; << 154 const G4double ThermalWaveLenght = 16.15*fermi/std::sqrt(T);
142 if (_MeanMultiplicity > 0.0) { << 155 const G4double lambda3 = ThermalWaveLenght*ThermalWaveLenght*ThermalWaveLenght;
143 156
144 G4double ThermalWaveLenght = 16.15*fermi/s << 157 G4double Entropy = 0.0;
145 G4double lambda3 = ThermalWaveLenght*Therm << 158 if (_MeanMultiplicity > 0.0) {
146 // Volume term << 159 // Volume term
147 G4double SV = 2.0*theA*T/_InvLevelDensity; << 160 G4double SV = 2.0*static_cast<G4double>(theA)*T/_InvLevelDensity;
148 161
149 // Surface term << 162 // Surface term
150 G4double SS = -G4StatMFParameters::DBetaDT << 163 G4double SS = -G4StatMFParameters::DBetaDT(T)*std::pow(static_cast<G4double>(theA),2./3.);
151 164
152 // Translational term << 165 // Translational term
153 G4double ST = 2.5 + G4Log(FreeVol * std::s << 166 G4double ST = (5./2.)+std::log(FreeVol * std::sqrt(static_cast<G4double>(theA)) *
154 /(lambda3*_MeanMultiplicity)); << 167 static_cast<G4double>(theA)/(lambda3*_MeanMultiplicity));
155 << 168
156 Entropy = _MeanMultiplicity*(SV + SS + ST) << 169
157 } << 170 Entropy = _MeanMultiplicity*(SV + SS + ST);
158 return Entropy; << 171 }
>> 172
>> 173
>> 174 return Entropy;
159 } 175 }
160 176