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28 //
29 // GEANT4 physics class: G4ChipsPionPlusInelasticXS -- header file
30 // Created: M.V. Kossov, CERN/ITEP(Moscow), 20-Dec-01
31 // The last update: M.V. Kossov, CERN/ITEP (Moscow) 17-May-02
32 //
33 // -------------------------------------------------------------------------------------
34 // Short description: Cross-sections extracted (by W.Pokorski) from the CHIPS package for
35 // pion interactions. Original author: M. Kossov
36 // -------------------------------------------------------------------------------------
37 //
38
39
40 #ifndef G4ChipsPionPlusInelasticXS_h
41 #define G4ChipsPionPlusInelasticXS_h 1
42
43 #include "G4ParticleTable.hh"
44 #include "G4NucleiProperties.hh"
45 #include <vector>
46 #include "G4VCrossSectionDataSet.hh"
47
48 class G4ChipsPionPlusInelasticXS : public G4VCrossSectionDataSet
49 {
50
51 public:
52
53 G4ChipsPionPlusInelasticXS();
54
55 ~G4ChipsPionPlusInelasticXS();
56
57 static const char* Default_Name() {return "ChipsPionPlusInelasticXS";}
58
59 virtual void CrossSectionDescription(std::ostream&) const;
60
61 virtual G4bool IsIsoApplicable(const G4DynamicParticle* Pt, G4int Z, G4int A,
62 const G4Element* elm,
63 const G4Material* mat );
64
65 // At present momentum (pMom) in MeV/c, CS in mb (@@ Units)
66 virtual G4double GetIsoCrossSection(const G4DynamicParticle*, G4int tgZ, G4int A,
67 const G4Isotope* iso = 0,
68 const G4Element* elm = 0,
69 const G4Material* mat = 0);
70
71 virtual G4double GetChipsCrossSection(G4double momentum, G4int Z, G4int N, G4int pdg);
72
73 private:
74 G4double CalculateCrossSection(G4int F, G4int I, G4int PDG, G4int Z,
75 G4int N, G4double Momentum);
76
77 G4int GetFunctions(G4int tZ, G4int tN, G4double* y, G4double* z); // y&z=ArrayPointers
78 G4double CrossSectionLin(G4int targZ, G4int targN, G4double P);
79 G4double CrossSectionLog(G4int targZ, G4int targN, G4double lP);
80 G4double CrossSectionFormula(G4int targZ, G4int targN, G4double P, G4double lP);
81 G4double ThresholdMomentum(G4int targZ, G4int targN); // Threshold of pA reaction (MeV/c)
82 G4double EquLinearFit(G4double X, G4int N, G4double X0, G4double DX, G4double* Y);
83 // Body
84 private:
85 G4double lastSig=0.; // Last value of the Cross Section
86 G4double* lastLEN; // Pointer to the last array of LowEnergy cross sections
87 G4double* lastHEN; // Pointer to the last array of HighEnergy cross sections
88 G4double lastE=0.; // Last used in the cross section Energy
89 G4int lastPDG=0; // The last projectile PDG
90 G4int lastN; // The last N of calculated nucleus
91 G4int lastZ; // The last Z of calculated nucleus
92 G4double lastP; // Last used in the cross section Momentum
93 G4double lastTH; // Last value of the Momentum Threshold
94 G4double lastCS; // Last value of the Cross Section
95 G4int lastI; // The last position in the DAMDB
96 std::vector<G4double*>* LEN; // Vector of pointers to LowEnProtonCrossSection
97 std::vector<G4double*>* HEN; // Vector of pointers to HighEnProtonCrossSection
98
99 G4int j=0; // A#0f Z/N-records already tested in AMDB
100 std::vector <G4int> colN; // Vector of N for calculated nuclei (isotops)
101 std::vector <G4int> colZ; // Vector of Z for calculated nuclei (isotops)
102 std::vector <G4double> colP; // Vector of last momenta for the reaction
103 std::vector <G4double> colTH; // Vector of energy thresholds for the reaction
104 std::vector <G4double> colCS; // Vector of last cross sections for the reaction
105
106 };
107
108 #endif
109