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G4StatMFMacroBiNucleon.cc
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27 // $Id: G4StatMFMacroBiNucleon.cc 91834 2015-08-07 07:24:22Z gcosmo $
28 //
29 // Hadronic Process: Nuclear De-excitations
30 // by V. Lara
31 
33 #include "G4StatMFParameters.hh"
34 #include "G4PhysicalConstants.hh"
35 #include "G4SystemOfUnits.hh"
36 #include "G4Log.hh"
37 #include "G4Exp.hh"
38 #include "G4Pow.hh"
39 
40 // Operators
41 
42 static const G4double degeneracy = 3.0;
43 
44 G4StatMFMacroBiNucleon & G4StatMFMacroBiNucleon::
45 operator=(const G4StatMFMacroBiNucleon & )
46 {
47  throw G4HadronicException(__FILE__, __LINE__, "G4StatMFMacroBiNucleon::operator= meant to not be accessable");
48  return *this;
49 }
50 
51 G4bool G4StatMFMacroBiNucleon::operator==(const G4StatMFMacroBiNucleon & ) const
52 {
53  throw G4HadronicException(__FILE__, __LINE__, "G4StatMFMacroBiNucleon::operator== meant to not be accessable");
54  return false;
55 }
56 
57 
58 G4bool G4StatMFMacroBiNucleon::operator!=(const G4StatMFMacroBiNucleon & ) const
59 {
60  throw G4HadronicException(__FILE__, __LINE__, "G4StatMFMacroBiNucleon::operator!= meant to not be accessable");
61  return true;
62 }
63 
65  const G4double mu,
66  const G4double nu,
67  const G4double T)
68 {
69  G4double ThermalWaveLenght = 16.15*fermi/std::sqrt(T);
70  G4double lambda3 = ThermalWaveLenght*ThermalWaveLenght*ThermalWaveLenght;
71 
73  //old value was 2.796*MeV
74  G4double exponent = (BindingE + theA*(mu+nu*theZARatio) -
76  *G4Pow::GetInstance()->Z23(theA))/T;
77 
78  // To avoid numerical problems
79  if (exponent < -300.0) exponent = -300.0;
80  else if (exponent > 300.0) exponent = 300.0;
81 
82  _MeanMultiplicity = (degeneracy*FreeVol*theA*std::sqrt((G4double)theA)/lambda3)*
83  G4Exp(exponent);
84 
85  return _MeanMultiplicity;
86 }
87 
89 {
92  * theA*G4Pow::GetInstance()->Z23(theA) + 1.5*T;
93 
94  return _Energy;
95 }
96 
98 {
99  G4double Entropy = 0.0;
100  if (_MeanMultiplicity > 0.0) {
101  G4double ThermalWaveLenght = 16.15*fermi/std::sqrt(T);
102  G4double lambda3 = ThermalWaveLenght*ThermalWaveLenght*ThermalWaveLenght;
103  // Is this formula correct?
104  Entropy = _MeanMultiplicity*(2.5+G4Log(3.0*theA*std::sqrt((G4double)theA)*FreeVol
105  /(lambda3*_MeanMultiplicity)));
106  }
107  return Entropy;
108 }
static G4Pow * GetInstance()
Definition: G4Pow.cc:55
G4double CalcMeanMultiplicity(const G4double FreeVol, const G4double mu, const G4double nu, const G4double T)
static const G4double degeneracy
bool G4bool
Definition: G4Types.hh:79
G4double G4Log(G4double x)
Definition: G4Log.hh:230
G4double G4Exp(G4double initial_x)
Exponential Function double precision.
Definition: G4Exp.hh:183
static G4double GetBindingEnergy(const G4int A, const G4int Z)
static G4double GetCoulomb()
G4double Z23(G4int Z) const
Definition: G4Pow.hh:154
G4double CalcEntropy(const G4double T, const G4double FreeVol)
double G4double
Definition: G4Types.hh:76
static constexpr double fermi
Definition: G4SIunits.hh:103
G4double CalcEnergy(const G4double T)