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Geant4/processes/hadronic/models/de_excitation/multifragmentation/src/G4StatMFFragment.cc

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Diff markup

Differences between /processes/hadronic/models/de_excitation/multifragmentation/src/G4StatMFFragment.cc (Version 11.3.0) and /processes/hadronic/models/de_excitation/multifragmentation/src/G4StatMFFragment.cc (Version 11.2)


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 25 //                                                 25 //
 26 //                                                 26 //
 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 "G4StatMFFragment.hh"                     31 #include "G4StatMFFragment.hh"
 32 #include "G4PhysicalConstants.hh"                  32 #include "G4PhysicalConstants.hh"
 33 #include "G4HadronicException.hh"                  33 #include "G4HadronicException.hh"
 34 #include "G4Pow.hh"                                34 #include "G4Pow.hh"
 35                                                    35 
 36 // Copy constructor                                36 // Copy constructor
 37 G4StatMFFragment::G4StatMFFragment(const G4Sta     37 G4StatMFFragment::G4StatMFFragment(const G4StatMFFragment & )
 38 {                                                  38 {
 39     throw G4HadronicException(__FILE__, __LINE     39     throw G4HadronicException(__FILE__, __LINE__, "G4StatMFFragment::copy_constructor meant to not be accessible");
 40 }                                                  40 }
 41                                                    41 
 42 // Operators                                       42 // Operators
 43                                                    43 
 44 G4StatMFFragment & G4StatMFFragment::              44 G4StatMFFragment & G4StatMFFragment::
 45 operator=(const G4StatMFFragment & )               45 operator=(const G4StatMFFragment & )
 46 {                                                  46 {
 47     throw G4HadronicException(__FILE__, __LINE     47     throw G4HadronicException(__FILE__, __LINE__, "G4StatMFFragment::operator= meant to not be accessible");
 48     return *this;                                  48     return *this;
 49 }                                                  49 }
 50                                                    50 
 51 G4bool G4StatMFFragment::operator==(const G4St     51 G4bool G4StatMFFragment::operator==(const G4StatMFFragment & ) const
 52 {                                                  52 {
 53 //  throw G4HadronicException(__FILE__, __LINE     53 //  throw G4HadronicException(__FILE__, __LINE__, "G4StatMFFragment::operator== meant to not be accessible");
 54     return false;                                  54     return false;
 55 }                                                  55 }
 56                                                    56  
 57 G4bool G4StatMFFragment::operator!=(const G4St     57 G4bool G4StatMFFragment::operator!=(const G4StatMFFragment & ) const
 58 {                                                  58 {
 59 //  throw G4HadronicException(__FILE__, __LINE     59 //  throw G4HadronicException(__FILE__, __LINE__, "G4StatMFFragment::operator!= meant to not be accessible");
 60     return true;                                   60     return true;
 61 }                                                  61 }
 62                                                    62 
 63 G4double G4StatMFFragment::GetCoulombEnergy(vo     63 G4double G4StatMFFragment::GetCoulombEnergy(void) const
 64 {                                                  64 {
 65   G4double res = 0.0;                              65   G4double res = 0.0;
 66   if (theZ >= 1) {                                 66   if (theZ >= 1) {
 67     res = G4StatMFParameters::GetCoulomb();        67     res = G4StatMFParameters::GetCoulomb();
 68   }                                                68   }
 69   return res;                                      69   return res;
 70 }                                                  70 }
 71                                                    71 
 72 G4double G4StatMFFragment::GetEnergy(const G4d     72 G4double G4StatMFFragment::GetEnergy(const G4double T) const
 73 {                                                  73 {
 74   if (theA < 1 || theZ < 0 || theZ > theA) {       74   if (theA < 1 || theZ < 0 || theZ > theA) {
 75     G4cout << "G4StatMFFragment::GetEnergy: A      75     G4cout << "G4StatMFFragment::GetEnergy: A = " << theA 
 76      << ", Z = " << theZ << G4endl;                76      << ", Z = " << theZ << G4endl;
 77     throw G4HadronicException(__FILE__, __LINE     77     throw G4HadronicException(__FILE__, __LINE__, 
 78             "G4StatMFFragment::GetEnergy: Wron     78             "G4StatMFFragment::GetEnergy: Wrong values for A and Z!");
 79   }                                                79   }
 80   G4double BulkEnergy = G4NucleiProperties::Ge     80   G4double BulkEnergy = G4NucleiProperties::GetMassExcess(theA,theZ);
 81                                                    81   
 82   if (theA < 4) return BulkEnergy - GetCoulomb     82   if (theA < 4) return BulkEnergy - GetCoulombEnergy();
 83                                                    83   
 84   G4double SurfaceEnergy;                          84   G4double SurfaceEnergy;
 85   if (G4StatMFParameters::DBetaDT(T) == 0.0) S     85   if (G4StatMFParameters::DBetaDT(T) == 0.0) SurfaceEnergy = 0.0;
 86   else SurfaceEnergy = 2.5*G4Pow::GetInstance(     86   else SurfaceEnergy = 2.5*G4Pow::GetInstance()->Z23(theA)*T*T*
 87    G4StatMFParameters::GetBeta0()/                 87    G4StatMFParameters::GetBeta0()/
 88    (G4StatMFParameters::GetCriticalTemp()*         88    (G4StatMFParameters::GetCriticalTemp()*
 89     G4StatMFParameters::GetCriticalTemp());        89     G4StatMFParameters::GetCriticalTemp());
 90                                                    90                    
 91   G4double ExchangeEnergy = theA*T*T/GetInvLev     91   G4double ExchangeEnergy = theA*T*T/GetInvLevelDensity();
 92   if (theA != 4) ExchangeEnergy += SurfaceEner     92   if (theA != 4) ExchangeEnergy += SurfaceEnergy;     
 93   return BulkEnergy + ExchangeEnergy - GetCoul     93   return BulkEnergy + ExchangeEnergy - GetCoulombEnergy();
 94 }                                                  94 }
 95                                                    95 
 96 G4double G4StatMFFragment::GetInvLevelDensity(     96 G4double G4StatMFFragment::GetInvLevelDensity(void) const
 97 {                                                  97 {
 98   G4double res = 0.0;                              98   G4double res = 0.0;
 99   if (theA > 1) {                                  99   if (theA > 1) {
100     res =  G4StatMFParameters::GetEpsilon0()*(    100     res =  G4StatMFParameters::GetEpsilon0()*(1.0+3.0/(theA - 1.0));
101   }                                               101   }
102   return res;                                     102   return res;
103 }                                                 103 }
104                                                   104 
105 G4Fragment * G4StatMFFragment::GetFragment(con    105 G4Fragment * G4StatMFFragment::GetFragment(const G4double T)
106 {                                                 106 {
107   G4double U = CalcExcitationEnergy(T);           107   G4double U = CalcExcitationEnergy(T);
108   G4double M = GetNuclearMass();                  108   G4double M = GetNuclearMass();
109   G4LorentzVector FourMomentum(_momentum,std::    109   G4LorentzVector FourMomentum(_momentum,std::sqrt(_momentum.mag2()+(M+U)*(M+U)));
110   G4Fragment * theFragment = new G4Fragment(th    110   G4Fragment * theFragment = new G4Fragment(theA, theZ, FourMomentum);
111   return theFragment;                             111   return theFragment;
112 }                                                 112 }
113                                                   113 
114 G4double G4StatMFFragment::CalcExcitationEnerg    114 G4double G4StatMFFragment::CalcExcitationEnergy(const G4double T)
115 {                                                 115 {
116   if (theA <= 3) return 0.0;                      116   if (theA <= 3) return 0.0;
117                                                   117   
118   G4double BulkEnergy = theA*T*T/GetInvLevelDe    118   G4double BulkEnergy = theA*T*T/GetInvLevelDensity();
119                                                   119   
120   // if it is an alpha particle: done             120   // if it is an alpha particle: done
121   if (theA == 4) return BulkEnergy;               121   if (theA == 4) return BulkEnergy;
122                                                   122     
123   // Term connected with surface energy           123   // Term connected with surface energy
124   G4double SurfaceEnergy = 0.0;                   124   G4double SurfaceEnergy = 0.0;
125   G4double q = G4StatMFParameters::DBetaDT(T);    125   G4double q = G4StatMFParameters::DBetaDT(T);
126   if (std::abs(q) > 1.0e-20) {                    126   if (std::abs(q) > 1.0e-20) { 
127     SurfaceEnergy = 2.5*G4Pow::GetInstance()->    127     SurfaceEnergy = 2.5*G4Pow::GetInstance()->Z23(theA)
128       *(G4StatMFParameters::Beta(T) - T*q - G4    128       *(G4StatMFParameters::Beta(T) - T*q - G4StatMFParameters::GetBeta0());
129   }                                               129   }
130   return BulkEnergy + SurfaceEnergy;              130   return BulkEnergy + SurfaceEnergy;
131 }                                                 131 }
132                                                   132