source: trunk/source/processes/hadronic/models/chiral_inv_phase_space/interface/include/G4QElasticCrossSection.hh @ 1055

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27// GEANT4 tag $Name: geant4-09-03-beta-cand-01 $
28//
29//
30// GEANT4 physics class: G4QElasticCrossSection -- header file
31// M.V. Kossov, ITEP(Moscow), 24-OCT-01
32// The last update: M.V. Kossov, CERN/ITEP (Moscow) 15-Oct-2006
33//
34//================================================================================
35// Short description: Interaction cross-sections for the G4QElastic process
36// -------------------------------------------------------------------------------
37
38#ifndef G4QElasticCrossSection_h
39#define G4QElasticCrossSection_h 1
40
41#include "G4VCrossSectionDataSet.hh"
42#include "G4DynamicParticle.hh"
43#include "G4Element.hh"
44#include "G4ParticleTable.hh"
45#include "G4NucleiProperties.hh"
46#include "G4NucleiPropertiesTable.hh"
47#include "G4QPDGCode.hh"
48#include "G4QException.hh"
49#include <vector>
50#include "Randomize.hh"
51#include "G4Electron.hh"
52#include "G4Positron.hh"
53#include "G4VQCrossSection.hh"
54#include "G4QElastic.hh"
55#include "G4QCoherentChargeExchange.hh"
56#include "G4QuasiFreeRatios.hh"
57#include "G4QIonIonCrossSection.hh"
58
59class G4QElasticCrossSection : public G4VQCrossSection
60{
61protected:
62
63  G4QElasticCrossSection();               // Constructor
64
65public:
66
67  ~G4QElasticCrossSection();
68
69  static G4VQCrossSection* GetPointer(); // Gives a pointer to this singletone
70
71  // Cross-section is mb. At present momentum (pMom) is in MeV=IU (@@ make Indep. Units)
72  virtual G4double GetCrossSection(G4bool fCS, G4double pMom, G4int tgZ, G4int tgN,
73                                                                             G4int pPDG=0);
74
75  G4double CalculateCrossSection(G4bool CS, G4int F, G4int I, G4int pPDG, G4int Z, G4int N,
76                                                                              G4double pP);
77protected:
78  friend class G4QElastic;
79  friend class G4QCoherentChargeExchange;
80  friend class G4QuasiFreeRatios;
81  friend class G4QIonIonCrossSection;
82  G4double GetSlope(G4int tZ, G4int tN, G4int pPDG);     // Slope of the 1st diff. maximum
83  G4double GetExchangeT(G4int tZ, G4int tN, G4int pPDG); // Randomizes -t=Q2 (in IU=MeV^2)
84  G4double GetHMaxT();                   // Currrent Max(-t=Q2)/2. (in IU=MeV^2)
85
86private:
87  G4double GetPTables(G4double lpP, G4double lPm, G4int PDG, G4int tZ, G4int tN); // newLP
88  G4double GetTabValues(G4double lp, G4int pPDG, G4int tgZ, G4int tgN); // return CS(Si/Bi)
89  G4double GetQ2max(G4int pPDG, G4int tgZ, G4int tgN, G4double pP); // return -t=Q2
90
91// Body
92private:
93  // --- Data formating AMDB (define the precalculated table structure) ---
94  static const G4int nPoints;// #of points in the AMDB tables     
95  static const G4int nLast;  // the Last element in the table
96  static G4double    lPMin;  // Min tabulated logarithmic Momentum 
97  static G4double    lPMax;  // Max tabulated logarithmic Momentum 
98  static G4double    dlnP;   // Log step in the table     
99  // ---- Local (for particular pP, pPDG, tZ, tN) -----
100  static G4bool    onlyCS;   // flag to calculate only CS (not S1/B1,S2/B2,S3/B3)
101  static G4double  lastSIG;  // Last calculated cross section
102  static G4double  lastLP;   // Last log(mom_of_the_incident_hadron in GeV)
103  static G4double  lastTM;   // Last t_maximum                       
104  static G4int     lastN;    // The last N of calculated nucleus
105  static G4int     lastZ;    // The last Z of calculated nucleus
106  static G4double  lastP;    // Last used in the cross section Momentum
107  static G4double  lastTH;   // Last value of the Momentum Threshold
108  static G4double  lastCS;   // Last value of the Cross Section
109  static G4int     lastI;    // The last position in the DAMDB
110  static G4double  theSS;    // The Last squared slope of first diffruction
111  static G4double  theS1;    // The Last mantissa of first diffruction
112  static G4double  theB1;    // The Last slope of first diffruction   
113  static G4double  theS2;    // The Last mantissa of second diffruction
114  static G4double  theB2;    // The Last slope of second diffruction   
115  static G4double  theS3;    // The Last mantissa of third diffruction
116  static G4double  theB3;    // The Last slope of third diffruction   
117  static G4double  theS4;    // The Last mantissa of 4-th diffruction
118  static G4double  theB4;    // The Last slope of 4-th diffruction   
119  // ---- Global (AMBD of P-dependent tables for pPDG,tZ,tN) -----
120  static G4int     lastPDG;  // Last PDG code of the projectile
121  static G4int     lastTZ;   // Last atomic number of the target
122  static G4int     lastTN;   // Last number of neutrons of the target
123  static G4double  lastPIN;  // Last initialized max momentum
124  static G4double* lastCST;  // Last cross-section table
125  static G4double* lastPAR;  // Last parameters for functional calculation
126  static G4double* lastSST;  // E-dep of squared slope of the first difruction
127  static G4double* lastS1T;  // E-dep of mantissa of the first difruction
128  static G4double* lastB1T;  // E-dep of the slope of the first difruction
129  static G4double* lastS2T;  // E-dep of mantissa of the second difruction
130  static G4double* lastB2T;  // E-dep of the slope of theSecond difruction
131  static G4double* lastS3T;  // E-dep of mantissa of the third difruction
132  static G4double* lastB3T;  // E-dep of the slope of the third difruction
133  static G4double* lastS4T;  // E-dep of mantissa of the 4-th difruction
134  static G4double* lastB4T;  // E-dep of the slope of the 4-th difruction
135
136  static std::vector <G4double*> PAR;   // Vector of parameters for functional calculations
137  static std::vector <G4double*> CST;   // Vector of cross-section table
138  static std::vector <G4double*> SST;   // Vector of the first squared slope
139  static std::vector <G4double*> S1T;   // Vector of the first mantissa
140  static std::vector <G4double*> B1T;   // Vector of the first slope
141  static std::vector <G4double*> S2T;   // Vector of the secon mantissa
142  static std::vector <G4double*> B2T;   // Vector of the second slope
143  static std::vector <G4double*> S3T;   // Vector of the third mantissa
144  static std::vector <G4double*> B3T;   // Vector of the third slope
145  static std::vector <G4double*> S4T;   // Vector of the 4-th mantissa (gloria)
146  static std::vector <G4double*> B4T;   // Vector of the 4-th slope    (gloria)
147 };
148#endif
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