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>> 27 // $Id: G4StatMFMacroMultiNucleon.cc 67983 2013-03-13 10:42:03Z gcosmo $
27 // 28 //
28 // Hadronic Process: Nuclear De-excitations 29 // Hadronic Process: Nuclear De-excitations
29 // by V. Lara 30 // by V. Lara
30 // 31 //
31 // Modified: 32 // Modified:
32 // 25.07.08 I.Pshenichnov (in collaboration wi 33 // 25.07.08 I.Pshenichnov (in collaboration with Alexander Botvina and Igor
33 // Mishustin (FIAS, Frankfurt, INR, M 34 // Mishustin (FIAS, Frankfurt, INR, Moscow and Kurchatov Institute,
34 // Moscow, pshenich@fias.uni-frankfur 35 // Moscow, pshenich@fias.uni-frankfurt.de) fixed computation of the
35 // symmetry energy 36 // symmetry energy
36 37
37 #include "G4StatMFMacroMultiNucleon.hh" 38 #include "G4StatMFMacroMultiNucleon.hh"
38 #include "G4PhysicalConstants.hh" 39 #include "G4PhysicalConstants.hh"
39 #include "G4SystemOfUnits.hh" 40 #include "G4SystemOfUnits.hh"
40 #include "G4Log.hh" <<
41 #include "G4Exp.hh" <<
42 #include "G4Pow.hh" <<
43 41
44 // Default constructor 42 // Default constructor
45 G4StatMFMacroMultiNucleon:: 43 G4StatMFMacroMultiNucleon::
46 G4StatMFMacroMultiNucleon() : 44 G4StatMFMacroMultiNucleon() :
47 G4VStatMFMacroCluster(0) // Beacuse the d 45 G4VStatMFMacroCluster(0) // Beacuse the def. constr. of base class is private
48 { 46 {
49 throw G4HadronicException(__FILE__, __LINE << 47 throw G4HadronicException(__FILE__, __LINE__, "G4StatMFMacroMultiNucleon::default_constructor meant to not be accessable");
50 } 48 }
51 49
52 // Copy constructor 50 // Copy constructor
53 G4StatMFMacroMultiNucleon:: 51 G4StatMFMacroMultiNucleon::
54 G4StatMFMacroMultiNucleon(const G4StatMFMacroM 52 G4StatMFMacroMultiNucleon(const G4StatMFMacroMultiNucleon & ) :
55 G4VStatMFMacroCluster(0) // Beacuse the d 53 G4VStatMFMacroCluster(0) // Beacuse the def. constr. of base class is private
56 { 54 {
57 throw G4HadronicException(__FILE__, __LINE << 55 throw G4HadronicException(__FILE__, __LINE__, "G4StatMFMacroMultiNucleon::copy_constructor meant to not be accessable");
58 } 56 }
59 57
60 // Operators 58 // Operators
61 59
62 G4StatMFMacroMultiNucleon & G4StatMFMacroMulti 60 G4StatMFMacroMultiNucleon & G4StatMFMacroMultiNucleon::
63 operator=(const G4StatMFMacroMultiNucleon & ) 61 operator=(const G4StatMFMacroMultiNucleon & )
64 { 62 {
65 throw G4HadronicException(__FILE__, __LINE << 63 throw G4HadronicException(__FILE__, __LINE__, "G4StatMFMacroMultiNucleon::operator= meant to not be accessable");
66 return *this; 64 return *this;
67 } 65 }
68 66
>> 67
69 G4bool G4StatMFMacroMultiNucleon::operator==(c 68 G4bool G4StatMFMacroMultiNucleon::operator==(const G4StatMFMacroMultiNucleon & ) const
70 { 69 {
71 throw G4HadronicException(__FILE__, __LINE << 70 throw G4HadronicException(__FILE__, __LINE__, "G4StatMFMacroMultiNucleon::operator== meant to not be accessable");
72 return false; 71 return false;
73 } 72 }
74 73
>> 74
75 G4bool G4StatMFMacroMultiNucleon::operator!=(c 75 G4bool G4StatMFMacroMultiNucleon::operator!=(const G4StatMFMacroMultiNucleon & ) const
76 { 76 {
77 throw G4HadronicException(__FILE__, __LINE << 77 throw G4HadronicException(__FILE__, __LINE__, "G4StatMFMacroMultiNucleon::operator!= meant to not be accessable");
78 return true; 78 return true;
79 } 79 }
80 80
81 G4double G4StatMFMacroMultiNucleon::CalcMeanMu << 81
82 const G4double mu, << 82
83 const G4double nu, << 83 G4double G4StatMFMacroMultiNucleon::CalcMeanMultiplicity(const G4double FreeVol, const G4double mu,
84 const G4double T) << 84 const G4double nu, const G4double T)
85 { << 85 {
86 G4double ThermalWaveLenght = 16.15*fermi/std << 86 const G4double ThermalWaveLenght = 16.15*fermi/std::sqrt(T);
87 G4double lambda3 = ThermalWaveLenght*Thermal << 87
88 G4Pow* g4calc = G4Pow::GetInstance(); << 88 const G4double lambda3 = ThermalWaveLenght*ThermalWaveLenght*ThermalWaveLenght;
89 G4double A23 = g4calc->Z23(theA); << 89
90 << 90 const G4double A23 = std::pow(static_cast<G4double>(theA),2./3.);
91 G4double exponent = (mu + nu*theZARatio+ G4S << 91
92 + T*T/_InvLevelDensity << 92 const G4double Coulomb = (3./5.)*(elm_coupling/G4StatMFParameters::Getr0())*
93 - G4StatMFParameters::GetGamma0()*( << 93 (1.0 - 1.0/std::pow(1.0+G4StatMFParameters::GetKappaCoulomb(),1./3.));
94 (1.0 - 2.0*theZARatio))*theA << 94
95 - G4StatMFParameters::Beta(T)*A23 << 95 G4double exponent = (mu + nu*theZARatio+ G4StatMFParameters::GetE0() + T*T/_InvLevelDensity
96 - G4StatMFParameters::GetCoulomb()*theZARa << 96 - G4StatMFParameters::GetGamma0()*(1.0 - 2.0*theZARatio)*
97 << 97 (1.0 - 2.0*theZARatio))*theA
98 exponent /= T; << 98 - G4StatMFParameters::Beta(T)*A23 - Coulomb*theZARatio*theZARatio*A23*theA;
99 << 99
100 if (exponent > 30.0) exponent = 30.0; << 100 exponent /= T;
101 << 101
102 _MeanMultiplicity = std::max((FreeVol * theA << 102 if (exponent > 30.0) exponent = 30.0;
103 G4Exp(exponent),1.0e-30); << 103
104 return _MeanMultiplicity; << 104 _MeanMultiplicity = std::max((FreeVol * static_cast<G4double>(theA) *
>> 105 std::sqrt(static_cast<G4double>(theA))/lambda3) *
>> 106 std::exp(exponent),1.0e-30);
>> 107 return _MeanMultiplicity;
105 } 108 }
106 109
>> 110
107 G4double G4StatMFMacroMultiNucleon::CalcZARati 111 G4double G4StatMFMacroMultiNucleon::CalcZARatio(const G4double nu)
108 { 112 {
109 G4double den = 8*G4StatMFParameters::GetGamm << 113 const G4double Coulomb = (3./5.)*(elm_coupling/G4StatMFParameters::Getr0())*
110 + 2*G4StatMFParameters::GetCoulomb()*G4Pow << 114 (1.0 - 1.0/std::pow(1.0+G4StatMFParameters::GetKappaCoulomb(),1./3.));
111 theZARatio = (4.0*G4StatMFParameters::GetGam << 115
112 return theZARatio; << 116 G4double den = 8.0*G4StatMFParameters::GetGamma0()+2.0*Coulomb*std::pow(static_cast<G4double>(theA),2./3.);
>> 117 G4double num = 4.0*G4StatMFParameters::GetGamma0()+nu;
>> 118
>> 119 return theZARatio = num/den;
>> 120
>> 121
113 } 122 }
114 123
>> 124
>> 125
115 G4double G4StatMFMacroMultiNucleon::CalcEnergy 126 G4double G4StatMFMacroMultiNucleon::CalcEnergy(const G4double T)
116 { 127 {
117 G4Pow* g4calc = G4Pow::GetInstance(); << 128 const G4double Coulomb = (3./5.)*(elm_coupling/G4StatMFParameters::Getr0())*
118 G4double A23 = g4calc->Z23(theA); << 129 (1.0 - 1.0/std::pow(1.0+G4StatMFParameters::GetKappaCoulomb(),1./3.));
>> 130
>> 131 const G4double A23 = std::pow(static_cast<G4double>(theA),2./3.);
119 132
120 // Volume term << 133 // Volume term
121 G4double EVol = theA * (T*T/_InvLevelDensity << 134 G4double EVol = static_cast<G4double>(theA) * (T*T/_InvLevelDensity - G4StatMFParameters::GetE0());
122 135
123 // Symmetry term << 136 // Symmetry term
124 G4double ESym = theA * G4StatMFParameters::G << 137 G4double ESym = static_cast<G4double>(theA) * G4StatMFParameters::GetGamma0() *(1. - 2.* theZARatio) * (1. - 2.* theZARatio);
125 *(1. - 2.* theZARatio) * (1. - 2.* theZARa <<
126 138
127 // Surface term << 139 // Surface term
128 G4double ESurf = A23*(G4StatMFParameters::Be << 140 G4double ESurf = A23*(G4StatMFParameters::Beta(T) - T*G4StatMFParameters::DBetaDT(T));
129 141
130 // Coulomb term << 142 // Coulomb term
131 G4double ECoul = G4StatMFParameters::GetCoul << 143 G4double ECoul = Coulomb*A23*static_cast<G4double>(theA)*theZARatio*theZARatio;
132 144
133 // Translational term << 145 // Translational term
134 G4double ETrans = 1.5*T; << 146 G4double ETrans = (3./2.)*T;
135 return _Energy = EVol + ESurf + ECoul + ETra << 147
>> 148
>> 149 return _Energy = EVol + ESurf + ECoul + ETrans + ESym;
136 } 150 }
137 151
138 G4double G4StatMFMacroMultiNucleon::CalcEntrop << 152
139 const G4double FreeVol) << 153 G4double G4StatMFMacroMultiNucleon::CalcEntropy(const G4double T, const G4double FreeVol)
140 { 154 {
141 G4double Entropy = 0.0; << 155 const G4double ThermalWaveLenght = 16.15*fermi/std::sqrt(T);
142 if (_MeanMultiplicity > 0.0) { << 156 const G4double lambda3 = ThermalWaveLenght*ThermalWaveLenght*ThermalWaveLenght;
143 157
144 G4double ThermalWaveLenght = 16.15*fermi/s << 158 G4double Entropy = 0.0;
145 G4double lambda3 = ThermalWaveLenght*Therm << 159 if (_MeanMultiplicity > 0.0) {
146 // Volume term << 160 // Volume term
147 G4double SV = 2.0*theA*T/_InvLevelDensity; << 161 G4double SV = 2.0*static_cast<G4double>(theA)*T/_InvLevelDensity;
148 162
149 // Surface term << 163 // Surface term
150 G4double SS = -G4StatMFParameters::DBetaDT << 164 G4double SS = -G4StatMFParameters::DBetaDT(T)*std::pow(static_cast<G4double>(theA),2./3.);
151 165
152 // Translational term << 166 // Translational term
153 G4double ST = 2.5 + G4Log(FreeVol * std::s << 167 G4double ST = (5./2.)+std::log(FreeVol * std::sqrt(static_cast<G4double>(theA)) *
154 /(lambda3*_MeanMultiplicity)); << 168 static_cast<G4double>(theA)/(lambda3*_MeanMultiplicity));
155 << 169
156 Entropy = _MeanMultiplicity*(SV + SS + ST) << 170
157 } << 171 Entropy = _MeanMultiplicity*(SV + SS + ST);
158 return Entropy; << 172 }
>> 173
>> 174
>> 175 return Entropy;
159 } 176 }
160 177