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25 //
26 //
27 // The lust update: M.V. Kossov, CERN/ITEP(Moscow) 17-June-02
28 //
29 //
30 // G4 Physics class: G4ChipsKaonZeroInelasticXS for gamma+A cross sections
31 // Created: M.V. Kossov, CERN/ITEP(Moscow), 20-Dec-03
32 // The last update: M.V. Kossov, CERN/ITEP (Moscow) 15-Feb-04
33 //
34 // ****************************************************************************************
35 // Short description: Cross-sections extracted (by W.Pokorski) from the CHIPS package for
36 // K(zero)-nuclear interactions. Original author: M. Kossov
37 // -------------------------------------------------------------------------------------
38 //
39
40 #include "G4ChipsKaonZeroInelasticXS.hh"
41 #include "G4DynamicParticle.hh"
42 #include "G4ParticleDefinition.hh"
43 #include "G4KaonZero.hh"
44 #include "G4KaonZeroLong.hh"
45 #include "G4KaonZeroShort.hh"
46 #include "G4AntiKaonZero.hh"
47 #include "G4CrossSectionDataSetRegistry.hh"
48
49 // factory
50 #include "G4CrossSectionFactory.hh"
51 //
52 G4_DECLARE_XS_FACTORY(G4ChipsKaonZeroInelasticXS);
53
54 G4ChipsKaonZeroInelasticXS::G4ChipsKaonZeroInelasticXS():G4VCrossSectionDataSet(Default_Name())
55 {
56 lastLEN=0;// Pointer to the lastArray of LowEn CS
57 lastHEN=0;// Pointer to the lastArray of HighEnCS
58 lastN=0; // The last N of calculated nucleus
59 lastZ=0; // The last Z of calculated nucleus
60 lastP=0.; // Last used in cross section Momentum
61 lastTH=0.;// Last threshold momentum
62 lastCS=0.;// Last value of the Cross Section
63 lastI=0; // The last position in the DAMDB
64
65 theKMinusCS = (G4ChipsKaonMinusInelasticXS*)G4CrossSectionDataSetRegistry::Instance()->GetCrossSectionDataSet(G4ChipsKaonMinusInelasticXS::Default_Name());;
66 theKPlusCS = (G4ChipsKaonPlusInelasticXS*)G4CrossSectionDataSetRegistry::Instance()->GetCrossSectionDataSet(G4ChipsKaonPlusInelasticXS::Default_Name());
67 }
68
69
70 G4ChipsKaonZeroInelasticXS::~G4ChipsKaonZeroInelasticXS()
71 {
72 }
73
74 void
75 G4ChipsKaonZeroInelasticXS::CrossSectionDescription(std::ostream& outFile) const
76 {
77 outFile << "G4ChipsKaonZeroInelasticXS provides the inelastic cross\n"
78 << "section for K0 nucleus scattering as a function of incident\n"
79 << "momentum. The cross section is calculated using M. Kossov's\n"
80 << "CHIPS parameterization of cross section data.\n";
81 }
82
83 G4bool G4ChipsKaonZeroInelasticXS::IsIsoApplicable(const G4DynamicParticle*, G4int, G4int,
84 const G4Element*,
85 const G4Material*)
86 {
87 return true;
88 }
89
90
91
92 // The main member function giving the collision cross section (P is in IU, CS is in mb)
93 // Make pMom in independent units ! (Now it is MeV)
94
95 G4double G4ChipsKaonZeroInelasticXS::GetIsoCrossSection(const G4DynamicParticle* Pt, G4int tgZ, G4int A,
96 const G4Isotope*,
97 const G4Element*,
98 const G4Material*)
99 {
100 G4double pMom=Pt->GetTotalMomentum();
101 G4int N = A - tgZ;
102
103 return GetChipsCrossSection(pMom, tgZ, N, 311);
104 }
105
106 G4double G4ChipsKaonZeroInelasticXS::GetChipsCrossSection(G4double mom, G4int Z, G4int N, G4int pdg)
107 {
108 return (theKMinusCS->GetChipsCrossSection(mom,Z,N,pdg)
109 +theKPlusCS->GetChipsCrossSection(mom,Z,N,pdg))/2;
110 }
111