| Geant4 Cross Reference |
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25 //
26 //
27
28 #include "globals.hh"
29 #include "G4ios.hh"
30 #include "G4KineticTrack.hh"
31 #include "G4XResonance.hh"
32 #include "Randomize.hh"
33 #include "G4Proton.hh"
34
35 G4XResonance::G4XResonance(const G4ParticleDefinition* in1,
36 const G4ParticleDefinition* in2,
37 G4int iIsospinOut1, G4double spinOut1, G4double massOut1,
38 G4int iIsospinOut2, G4double spinOut2, G4double massOut2,
39 G4String subType1, G4String subType2,
40 const G4VXResonanceTable& sigmaTable) :
41 isoOut1(iIsospinOut1), iSpinOut1(spinOut1), mOut1(massOut1),
42 isoOut2(iIsospinOut2), iSpinOut2(spinOut2), mOut2(massOut2)
43
44 {
45 table = sigmaTable.CrossSectionTable();
46 // Check if there is a valid cross section table for this channel
47 if (table == 0)
48 throw G4HadronicException(__FILE__, __LINE__, "G4XResonance::G4XResonance - no cross section table available");
49
50 name = in1->GetParticleName() + in2->GetParticleName() + " -> " + subType1 + subType2;
51 }
52
53
54 G4XResonance::~G4XResonance()
55 {
56 delete table;
57 table = 0;
58 }
59
60
61 G4bool G4XResonance::operator==(const G4XResonance &right) const
62 {
63 return (this == (G4XResonance *) &right);
64 }
65
66
67 G4bool G4XResonance::operator!=(const G4XResonance &right) const
68 {
69 return (this != (G4XResonance *) &right);
70 }
71
72
73 G4String G4XResonance::Name() const
74 {
75 return name;
76 }
77
78 G4double G4XResonance::CrossSection(const G4KineticTrack& trk1, const G4KineticTrack& trk2) const
79 {
80 G4bool dummy = false;
81 G4double sqrtS = (trk1.Get4Momentum() + trk2.Get4Momentum()).mag();
82
83 // pp -> trk1 + trk2 cross section
84 G4double sigma = table->GetValue(sqrtS,dummy);
85
86 // Isospin correction
87 // from G4VXResonance;
88 // G4cout << "SigmaCheck "<<sigma;
89 sigma *= IsospinCorrection(trk1,trk2,isoOut1,isoOut2,iSpinOut1,iSpinOut2); // from G4VXResonance
90 // G4cout << " "<<sigma<<G4endl;
91
92 // Detailed balance
93 if (trk1.GetDefinition()->IsShortLived() || trk2.GetDefinition()->IsShortLived())
94 {
95 sigma *= DetailedBalance(trk1,trk2, isoOut1,isoOut2, iSpinOut1,iSpinOut2, mOut1,mOut2);
96 }
97
98 return sigma;
99
100 }
101
102