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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 #include "G4StatMFMacroTetraNucleon.hh" 31 #include "G4StatMFMacroTetraNucleon.hh"
32 #include "G4PhysicalConstants.hh" 32 #include "G4PhysicalConstants.hh"
33 #include "G4SystemOfUnits.hh" 33 #include "G4SystemOfUnits.hh"
34 #include "G4Log.hh" 34 #include "G4Log.hh"
35 #include "G4Exp.hh" 35 #include "G4Exp.hh"
36 #include "G4Pow.hh" 36 #include "G4Pow.hh"
37 37
38 G4StatMFMacroTetraNucleon::G4StatMFMacroTetraN 38 G4StatMFMacroTetraNucleon::G4StatMFMacroTetraNucleon()
39 : G4VStatMFMacroCluster(4) 39 : G4VStatMFMacroCluster(4)
40 {} 40 {}
41 41
42 G4StatMFMacroTetraNucleon::~G4StatMFMacroTetra 42 G4StatMFMacroTetraNucleon::~G4StatMFMacroTetraNucleon()
43 {} 43 {}
44 44
45 G4double 45 G4double
46 G4StatMFMacroTetraNucleon::CalcMeanMultiplicit 46 G4StatMFMacroTetraNucleon::CalcMeanMultiplicity(const G4double FreeVol,
47 const G4double mu, 47 const G4double mu,
48 const G4double nu, 48 const G4double nu,
49 const G4double T) 49 const G4double T)
50 { 50 {
51 G4double ThermalWaveLenght = 16.15*fermi/std 51 G4double ThermalWaveLenght = 16.15*fermi/std::sqrt(T);
52 G4double lambda3 = ThermalWaveLenght*Thermal 52 G4double lambda3 = ThermalWaveLenght*ThermalWaveLenght*ThermalWaveLenght;
53 static const G4double degeneracy = 1; // He 53 static const G4double degeneracy = 1; // He4
54 54
55 //old value was 30.11*MeV 55 //old value was 30.11*MeV
56 G4double BindingE = G4NucleiProperties::GetB 56 G4double BindingE = G4NucleiProperties::GetBindingEnergy(theA,2);
57 57
58 G4double exponent = (BindingE + theA*(mu+nu* 58 G4double exponent = (BindingE + theA*(mu+nu*theZARatio+T*T/_InvLevelDensity)
59 - G4StatMFParameters::GetCoulomb()* 59 - G4StatMFParameters::GetCoulomb()*theZARatio*theZARatio*
60 theA*G4Pow::GetInstance()->Z23(theA 60 theA*G4Pow::GetInstance()->Z23(theA))/T;
61 if (exponent > 300.0) exponent = 300.0; 61 if (exponent > 300.0) exponent = 300.0;
62 62
63 _MeanMultiplicity = ( degeneracy*FreeVol*the 63 _MeanMultiplicity = ( degeneracy*FreeVol*theA*std::sqrt((G4double)theA)/lambda3)*
64 G4Exp(exponent); 64 G4Exp(exponent);
65 65
66 return _MeanMultiplicity; 66 return _MeanMultiplicity;
67 } 67 }
68 68
69 G4double G4StatMFMacroTetraNucleon::CalcEnergy 69 G4double G4StatMFMacroTetraNucleon::CalcEnergy(const G4double T)
70 { 70 {
71 return _Energy = -G4NucleiProperties::GetBin 71 return _Energy = -G4NucleiProperties::GetBindingEnergy(theA,2) +
72 G4StatMFParameters::GetCoulomb() * theZARa 72 G4StatMFParameters::GetCoulomb() * theZARatio * theZARatio *
73 theA*G4Pow::GetInstance()->Z23(theA) + 73 theA*G4Pow::GetInstance()->Z23(theA) +
74 1.5 * T + theA * T*T/_InvLevelDensity; 74 1.5 * T + theA * T*T/_InvLevelDensity;
75 } 75 }
76 76
77 G4double 77 G4double
78 G4StatMFMacroTetraNucleon::CalcEntropy(const G 78 G4StatMFMacroTetraNucleon::CalcEntropy(const G4double T,
79 const G4double FreeVol) 79 const G4double FreeVol)
80 { 80 {
81 G4double Entropy = 0.0; 81 G4double Entropy = 0.0;
82 if (_MeanMultiplicity > 0.0) { 82 if (_MeanMultiplicity > 0.0) {
83 G4double ThermalWaveLenght = 16.15*fermi/s 83 G4double ThermalWaveLenght = 16.15*fermi/std::sqrt(T);
84 G4double lambda3 = ThermalWaveLenght*Therm 84 G4double lambda3 = ThermalWaveLenght*ThermalWaveLenght*ThermalWaveLenght;
85 Entropy = _MeanMultiplicity*(2.5 + G4Log(8 85 Entropy = _MeanMultiplicity*(2.5 + G4Log(8*FreeVol/(lambda3*_MeanMultiplicity)))+
86 8.0*T/_InvLevelDensity; 86 8.0*T/_InvLevelDensity;
87 } 87 }
88 return Entropy; 88 return Entropy;
89 } 89 }
90 90