Geant4_10
G4StatMFMacroMultiNucleon.cc
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27 // $Id: G4StatMFMacroMultiNucleon.cc 67983 2013-03-13 10:42:03Z gcosmo $
28 //
29 // Hadronic Process: Nuclear De-excitations
30 // by V. Lara
31 //
32 // Modified:
33 // 25.07.08 I.Pshenichnov (in collaboration with Alexander Botvina and Igor
34 // Mishustin (FIAS, Frankfurt, INR, Moscow and Kurchatov Institute,
35 // Moscow, pshenich@fias.uni-frankfurt.de) fixed computation of the
36 // symmetry energy
37 
39 #include "G4PhysicalConstants.hh"
40 #include "G4SystemOfUnits.hh"
41 
42 // Default constructor
43 G4StatMFMacroMultiNucleon::
44 G4StatMFMacroMultiNucleon() :
45  G4VStatMFMacroCluster(0) // Beacuse the def. constr. of base class is private
46 {
47  throw G4HadronicException(__FILE__, __LINE__, "G4StatMFMacroMultiNucleon::default_constructor meant to not be accessable");
48 }
49 
50 // Copy constructor
51 G4StatMFMacroMultiNucleon::
52 G4StatMFMacroMultiNucleon(const G4StatMFMacroMultiNucleon & ) :
53  G4VStatMFMacroCluster(0) // Beacuse the def. constr. of base class is private
54 {
55  throw G4HadronicException(__FILE__, __LINE__, "G4StatMFMacroMultiNucleon::copy_constructor meant to not be accessable");
56 }
57 
58 // Operators
59 
60 G4StatMFMacroMultiNucleon & G4StatMFMacroMultiNucleon::
61 operator=(const G4StatMFMacroMultiNucleon & )
62 {
63  throw G4HadronicException(__FILE__, __LINE__, "G4StatMFMacroMultiNucleon::operator= meant to not be accessable");
64  return *this;
65 }
66 
67 
68 G4bool G4StatMFMacroMultiNucleon::operator==(const G4StatMFMacroMultiNucleon & ) const
69 {
70  throw G4HadronicException(__FILE__, __LINE__, "G4StatMFMacroMultiNucleon::operator== meant to not be accessable");
71  return false;
72 }
73 
74 
75 G4bool G4StatMFMacroMultiNucleon::operator!=(const G4StatMFMacroMultiNucleon & ) const
76 {
77  throw G4HadronicException(__FILE__, __LINE__, "G4StatMFMacroMultiNucleon::operator!= meant to not be accessable");
78  return true;
79 }
80 
81 
82 
84  const G4double nu, const G4double T)
85 {
86  const G4double ThermalWaveLenght = 16.15*fermi/std::sqrt(T);
87 
88  const G4double lambda3 = ThermalWaveLenght*ThermalWaveLenght*ThermalWaveLenght;
89 
90  const G4double A23 = std::pow(static_cast<G4double>(theA),2./3.);
91 
92  const G4double Coulomb = (3./5.)*(elm_coupling/G4StatMFParameters::Getr0())*
93  (1.0 - 1.0/std::pow(1.0+G4StatMFParameters::GetKappaCoulomb(),1./3.));
94 
97  (1.0 - 2.0*theZARatio))*theA
98  - G4StatMFParameters::Beta(T)*A23 - Coulomb*theZARatio*theZARatio*A23*theA;
99 
100  exponent /= T;
101 
102  if (exponent > 30.0) exponent = 30.0;
103 
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;
108 }
109 
110 
112 {
113  const G4double Coulomb = (3./5.)*(elm_coupling/G4StatMFParameters::Getr0())*
114  (1.0 - 1.0/std::pow(1.0+G4StatMFParameters::GetKappaCoulomb(),1./3.));
115 
116  G4double den = 8.0*G4StatMFParameters::GetGamma0()+2.0*Coulomb*std::pow(static_cast<G4double>(theA),2./3.);
118 
119  return theZARatio = num/den;
120 
121 
122 }
123 
124 
125 
127 {
128  const G4double Coulomb = (3./5.)*(elm_coupling/G4StatMFParameters::Getr0())*
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.);
132 
133  // Volume term
134  G4double EVol = static_cast<G4double>(theA) * (T*T/_InvLevelDensity - G4StatMFParameters::GetE0());
135 
136  // Symmetry term
137  G4double ESym = static_cast<G4double>(theA) * G4StatMFParameters::GetGamma0() *(1. - 2.* theZARatio) * (1. - 2.* theZARatio);
138 
139  // Surface term
141 
142  // Coulomb term
143  G4double ECoul = Coulomb*A23*static_cast<G4double>(theA)*theZARatio*theZARatio;
144 
145  // Translational term
146  G4double ETrans = (3./2.)*T;
147 
148 
149  return _Energy = EVol + ESurf + ECoul + ETrans + ESym;
150 }
151 
152 
154 {
155  const G4double ThermalWaveLenght = 16.15*fermi/std::sqrt(T);
156  const G4double lambda3 = ThermalWaveLenght*ThermalWaveLenght*ThermalWaveLenght;
157 
158  G4double Entropy = 0.0;
159  if (_MeanMultiplicity > 0.0) {
160  // Volume term
161  G4double SV = 2.0*static_cast<G4double>(theA)*T/_InvLevelDensity;
162 
163  // Surface term
164  G4double SS = -G4StatMFParameters::DBetaDT(T)*std::pow(static_cast<G4double>(theA),2./3.);
165 
166  // Translational term
167  G4double ST = (5./2.)+std::log(FreeVol * std::sqrt(static_cast<G4double>(theA)) *
168  static_cast<G4double>(theA)/(lambda3*_MeanMultiplicity));
169 
170 
171  Entropy = _MeanMultiplicity*(SV + SS + ST);
172  }
173 
174 
175  return Entropy;
176 }
static G4double GetGamma0()
Float_t den
Definition: plot.C:37
static G4double GetKappaCoulomb()
tuple elm_coupling
Definition: hepunit.py:286
static G4double Getr0()
G4double CalcEnergy(const G4double T)
bool G4bool
Definition: G4Types.hh:79
static G4double GetE0()
#define A23
T max(const T t1, const T t2)
brief Return the largest of the two arguments
static G4double DBetaDT(G4double T)
G4double CalcZARatio(const G4double nu)
G4double CalcMeanMultiplicity(const G4double FreeVol, const G4double mu, const G4double nu, const G4double T)
double G4double
Definition: G4Types.hh:76
static G4double Beta(G4double T)
G4double CalcEntropy(const G4double T, const G4double FreeVol)