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G4HETCNeutron.cc
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26 // $Id: G4HETCNeutron.cc 90337 2015-05-26 08:34:27Z gcosmo $
27 //
28 // by V. Lara
29 //
30 // Modified:
31 // 23.08.2010 V.Ivanchenko general cleanup, move constructor and destructor
32 // the source, use G4Pow
33 
34 #include "G4HETCNeutron.hh"
35 #include "G4PhysicalConstants.hh"
36 #include "G4SystemOfUnits.hh"
37 #include "G4Neutron.hh"
38 
40  : G4HETCFragment(G4Neutron::Neutron(), &theNeutronCoulombBarrier)
41 {}
42 
44 {}
45 
47 {
48  return 0.76+2.2/theResA13;
49 }
50 
52 {
53  return (2.12/(theResA13*theResA13)-0.05)*MeV/GetAlpha();
54 }
55 
57 {
58  // (2s+1)
59  return 2.0;
60 }
61 
63 {
64  // Number of protons in emitted fragment
65  G4int Pa = theZ;
66  // Number of neutrons in emitted fragment
67  G4int Na = theA - Pa;
68 
70 
71  G4int P = aFragment.GetNumberOfParticles();
72  G4int H = aFragment.GetNumberOfHoles();
73 
74  G4double result = 0.0;
75  if (P > 0)
76  {
77  result = (H + Na/(1.0-r))/P;
78  }
79 
80  return std::max(0.0,result);
81 }
82 
84 {
85  G4int H = aFragment.GetNumberOfHoles();
86  G4int Pb = aFragment.GetNumberOfParticles();
87  G4int Nb = Pb + H;
89 
90  G4double Ab = std::max(0.0,G4double(Pb*Pb+H*H+Pb-3*H)/(4.0*g0));
92 
93  G4double cut = GetBeta() / (GetBeta()+Emax/G4double(Nb+1));
94  G4double x(0.0);
95  if (G4UniformRand() <= cut)
96  {
97  x = BetaRand(Nb,1);
98  }
99  else
100  {
101  x = BetaRand(Nb,2);
102  }
103 
104  return Emax * (1.0 - x);
105 }
G4double G4ParticleHPJENDLHEData::G4double result
virtual G4double SampleKineticEnergy(const G4Fragment &aFragment)
G4int GetNumberOfParticles() const
Definition: G4Fragment.hh:345
tuple x
Definition: test.py:50
virtual G4double GetBeta() const
G4double GetLevelDensity() const
int G4int
Definition: G4Types.hh:78
static double P[]
G4DeexPrecoParameters * theParameters
virtual G4double K(const G4Fragment &aFragment)
G4int GetNumberOfHoles() const
Definition: G4Fragment.hh:365
#define G4UniformRand()
Definition: Randomize.hh:97
T max(const T t1, const T t2)
brief Return the largest of the two arguments
virtual G4double GetAlpha() const
static const G4double Emax
static constexpr double MeV
Definition: G4SIunits.hh:214
double G4double
Definition: G4Types.hh:76
virtual G4double GetSpinFactor() const
G4double BetaRand(G4int N, G4int L) const
static constexpr double pi2
Definition: G4SIunits.hh:78