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G4ChipsKaonZeroElasticXS.cc
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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: G4ChipsKaonZeroElasticXS 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 
41 #include "G4DynamicParticle.hh"
42 #include "G4ParticleDefinition.hh"
43 #include "G4KaonZero.hh"
44 #include "G4KaonZeroLong.hh"
45 #include "G4KaonZeroShort.hh"
46 #include "G4AntiKaonZero.hh"
48 
49 // factory
50 #include "G4CrossSectionFactory.hh"
51 //
53 
54 
55 
57 {
58 
59  lastLEN=0;// Pointer to the lastArray of LowEn CS
60  lastHEN=0;// Pointer to the lastArray of HighEnCS
61  lastN=0; // The last N of calculated nucleus
62  lastZ=0; // The last Z of calculated nucleus
63  lastP=0.; // Last used in cross section Momentum
64  lastTH=0.;// Last threshold momentum
65  lastCS=0.;// Last value of the Cross Section
66  lastI=0; // The last position in the DAMDB
67 
70 }
71 
72 
74 {
75 }
76 
77 void
79 {
80  outFile << "G4ChipsKaonZeroElasticXS provides the elastic cross\n"
81  << "section for K0 nucleus scattering as a function of incident\n"
82  << "momentum. The cross section is calculated using M. Kossov's\n"
83  << "CHIPS parameterization of cross section data.\n";
84 }
85 
87  const G4Element*,
88  const G4Material*)
89 {
90  return true;
91 }
92 
93 
94 
95 // The main member function giving the collision cross section (P is in IU, CS is in mb)
96 // Make pMom in independent units ! (Now it is MeV)
97 
99  const G4Isotope*,
100  const G4Element*,
101  const G4Material*)
102 {
103  G4double pMom=Pt->GetTotalMomentum();
104  G4int N = A - tgZ;
105 
106  return GetChipsCrossSection(pMom, tgZ, N, 311);
107 }
108 
110 {
111  return (theKMinusCS->GetChipsCrossSection(mom,Z,N,pdg)
112  +theKPlusCS->GetChipsCrossSection(mom,Z,N,pdg))/2;
113 }
114 
115