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28 //
29 // GEANT4 physics class: G4ChipsHyperonElasticXS -- header file
30 // M.V. Kossov, ITEP(Moscow), 5-Feb-2010
31 // The last update: M.V. Kossov, CERN/ITEP (Moscow) 5-Feb-2010
32 //
33 // -------------------------------------------------------------------------------
34 // Short description: Interaction cross-sections for the elastic process.
35 // Class extracted from CHIPS and integrated in Geant4 by W.Pokorski
36 // -------------------------------------------------------------------------------
37 //
38
39 #ifndef G4ChipsHyperonElasticXS_h
40 #define G4ChipsHyperonElasticXS_h 1
41
42 #include <vector>
43 #include "Randomize.hh"
44 #include "G4VCrossSectionDataSet.hh"
45
46 class G4ChipsHyperonElasticXS : public G4VCrossSectionDataSet
47 {
48
49 public:
50 G4ChipsHyperonElasticXS(); // Constructor
51
52 ~G4ChipsHyperonElasticXS();
53
54 static const char* Default_Name() {return "ChipsHyperonElasticXS";}
55
56 virtual void CrossSectionDescription(std::ostream&) const;
57
58 virtual G4bool IsIsoApplicable(const G4DynamicParticle* Pt, G4int Z, G4int A,
59 const G4Element* elm,
60 const G4Material* mat );
61
62 // At present momentum (pMom) in MeV/c, CS in mb (@@ Units)
63 virtual G4double GetIsoCrossSection(const G4DynamicParticle*, G4int tgZ, G4int A,
64 const G4Isotope* iso = 0,
65 const G4Element* elm = 0,
66 const G4Material* mat = 0);
67
68 virtual G4double GetChipsCrossSection(G4double momentum, G4int Z, G4int N, G4int pdg);
69
70 G4double GetExchangeT(G4int tZ, G4int tN, G4int pPDG); // Randomizes -t=Q2 (in IU=MeV^2)
71
72 private:
73 G4double CalculateCrossSection(G4bool CS, G4int F, G4int I, G4int pPDG, G4int Z, G4int N,
74 G4double pP);
75 G4double GetSlope(G4int tZ, G4int tN, G4int pPDG); // Slope of the 1st diff. maximum
76 G4double GetHMaxT(); // Currrent Max(-t=Q2)/2. (in IU=MeV^2)
77
78 G4double GetPTables(G4double lpP, G4double lPm, G4int PDG, G4int tZ, G4int tN); // newLP
79 G4double GetTabValues(G4double lp, G4int pPDG, G4int tgZ, G4int tgN); // return CS(Si/Bi)
80 G4double GetQ2max(G4int pPDG, G4int tgZ, G4int tgN, G4double pP); // return -t=Q2
81
82 // Body
83 private:
84 // --- Data formating AMDB (define the precalculated table structure) ---
85 const G4int nPoints;// #of points in the AMDB tables
86 const G4int nLast; // the Last element in the table
87 G4double lPMin; // Min tabulated logarithmic Momentum
88 G4double lPMax; // Max tabulated logarithmic Momentum
89 G4double dlnP; // Log step in the table
90 // ---- Local (for particular pP, pPDG, tZ, tN) -----
91 G4bool onlyCS; // flag to calculate only CS (not S1/B1,S2/B2,S3/B3)
92 G4double lastSIG; // Last calculated cross section
93 G4double lastLP; // Last log(mom_of_the_incident_hadron in GeV)
94 G4double lastTM; // Last t_maximum
95 G4int lastN; // The last N of calculated nucleus
96 G4int lastZ; // The last Z of calculated nucleus
97 G4double lastP; // Last used in the cross section Momentum
98 G4double lastTH; // Last value of the Momentum Threshold
99 G4double lastCS; // Last value of the Cross Section
100 G4int lastI; // The last position in the DAMDB
101 G4double theSS; // The Last squared slope of first diffruction
102 G4double theS1; // The Last mantissa of first diffruction
103 G4double theB1; // The Last slope of first diffruction
104 G4double theS2; // The Last mantissa of second diffruction
105 G4double theB2; // The Last slope of second diffruction
106 G4double theS3; // The Last mantissa of third diffruction
107 G4double theB3; // The Last slope of third diffruction
108 G4double theS4; // The Last mantissa of 4-th diffruction
109 G4double theB4; // The Last slope of 4-th diffruction
110 // ---- Global (AMBD of P-dependent tables for pPDG,tZ,tN) -----
111 G4int lastTZ; // Last atomic number of the target
112 G4int lastTN; // Last number of neutrons of the target
113 G4double lastPIN; // Last initialized max momentum
114 G4double* lastCST; // Last cross-section table
115 G4double* lastPAR; // Last parameters for functional calculation
116 G4double* lastSST; // E-dep of squared slope of the first difruction
117 G4double* lastS1T; // E-dep of mantissa of the first difruction
118 G4double* lastB1T; // E-dep of the slope of the first difruction
119 G4double* lastS2T; // E-dep of mantissa of the second difruction
120 G4double* lastB2T; // E-dep of the slope of theSecond difruction
121 G4double* lastS3T; // E-dep of mantissa of the third difruction
122 G4double* lastB3T; // E-dep of the slope of the third difruction
123 G4double* lastS4T; // E-dep of mantissa of the 4-th difruction
124 G4double* lastB4T; // E-dep of the slope of the 4-th difruction
125
126 std::vector <G4double*> PAR; // Vector of parameters for functional calculations
127 std::vector <G4double*> CST; // Vector of cross-section table
128 std::vector <G4double*> SST; // Vector of the first squared slope
129 std::vector <G4double*> S1T; // Vector of the first mantissa
130 std::vector <G4double*> B1T; // Vector of the first slope
131 std::vector <G4double*> S2T; // Vector of the secon mantissa
132 std::vector <G4double*> B2T; // Vector of the second slope
133 std::vector <G4double*> S3T; // Vector of the third mantissa
134 std::vector <G4double*> B3T; // Vector of the third slope
135 std::vector <G4double*> S4T; // Vector of the 4-th mantissa (gloria)
136 std::vector <G4double*> B4T; // Vector of the 4-th slope (gloria)
137
138 std::vector <G4int> colN; // Vector of N for calculated nuclei (isotops)
139 std::vector <G4int> colZ; // Vector of Z for calculated nuclei (isotops)
140 std::vector <G4double> colP; // Vector of last momenta for the reaction
141 std::vector <G4double> colTH; // Vector of energy thresholds for the reaction
142 std::vector <G4double> colCS; // Vector of last cross sections for the reaction
143
144 std::vector <G4double> PIN; // Vector of max initialized log(P) in the table
145
146 };
147 #endif
148