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2 | // ******************************************************************** |
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3 | // * License and Disclaimer * |
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15 | // * use. Please see the license in the file LICENSE and URL above * |
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24 | // ******************************************************************** |
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25 | // |
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26 | // |
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27 | // GEANT4 tag $Name: $ |
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28 | // |
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29 | // |
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30 | // GEANT4 physics class: G4QuasiFreeRatios -- header file |
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31 | // M.V. Kossov, ITEP(Moscow), 24-OCT-01 |
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32 | // The last update: M.V. Kossov, CERN/ITEP (Moscow) 15-Oct-2006 |
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33 | // |
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34 | |
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35 | #ifndef G4QuasiFreeRatios_h |
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36 | #define G4QuasiFreeRatios_h 1 |
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37 | |
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38 | #include "globals.hh" |
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39 | #include "G4ios.hh" |
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40 | #include "Randomize.hh" |
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41 | #include <vector> |
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42 | //#include "G4DynamicParticle.hh" |
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43 | //#include "G4Element.hh" |
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44 | //#include "G4ParticleTable.hh" |
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45 | //#include "G4NucleiProperties.hh" |
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46 | //#include "G4NucleiPropertiesTable.hh" |
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47 | #include "G4QPDGCode.hh" |
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48 | #include "G4QHadron.hh" |
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49 | #include "G4VCrossSectionDataSet.hh" |
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50 | #include "G4QElasticCrossSection.hh" |
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51 | |
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52 | |
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53 | class G4QuasiFreeRatios |
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54 | { |
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55 | protected: |
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56 | |
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57 | G4QuasiFreeRatios(); // Constructor |
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58 | |
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59 | public: |
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60 | |
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61 | ~G4QuasiFreeRatios(); // Destructor |
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62 | |
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63 | static G4QuasiFreeRatios* GetPointer(); // Gives a pointer to this singletone |
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64 | |
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65 | // Pair(QuasiFree/Inelastic,QuasiElastic/QuasiFree) |
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66 | std::pair<G4double,G4double> GetRatios(G4double pIU, G4int prPDG, G4int tgZ, G4int tgN); |
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67 | // ChargeExchange/QuasiElastic factor pair<for protons (Z), for neutrons(N)> |
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68 | std::pair<G4double,G4double> GetChExFactor(G4double pIU, G4int pPDG, G4int Z, G4int N); |
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69 | // scatter (pPDG,p4M) on a virtual nucleon (NPDG,N4M), result: final pair(newN4M,newp4M) |
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70 | // if(newN4M.e()==0.) - below threshold, XS=0, no scattering of the progectile happened |
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71 | std::pair<G4LorentzVector,G4LorentzVector> Scatter(G4int NPDG, G4LorentzVector N4M, |
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72 | G4int pPDG, G4LorentzVector p4M); |
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73 | // ChExer (pPDG,p4M) on a virtual nucleon (NPDG,N4M), result: final pair(newN4M,newp4M) |
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74 | // if(newN4M.e()==0.) - keep projectile, XS=0, no interaction of the progectile happened |
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75 | // User should himself change the charge (PDG) (e.g. pn->np, pi+n->pi0p, pi-p->pi0n etc.) |
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76 | // Recepy: change target n to p or taget p to n and conserve enrgy, changing projectile |
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77 | // Do not use for the nucleon, as it is already included in quasielastic, and for pi0. |
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78 | std::pair<G4LorentzVector,G4LorentzVector> ChExer(G4int NPDG, G4LorentzVector N4M, |
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79 | G4int pPDG, G4LorentzVector p4M); |
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80 | // Mean hN El and Tot XS(IU) for the isotopic (Z,N): on p -> (Z=1,N=0), on n -> (Z=0,N=1) |
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81 | std::pair<G4double,G4double> GetElTot(G4double pIU, G4int hPDG, G4int Z, G4int N); //(IU) |
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82 | |
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83 | // Calculate ChEx/El ratio coefficient (p is in independent units, (Z,N) is a target) |
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84 | G4double ChExElCoef(G4double p, G4int Z, G4int N, G4int pPDG); |
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85 | |
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86 | private: |
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87 | // These working member functions are in CHIPS units and must not be used externally |
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88 | G4double GetQF2IN_Ratio(G4double TotCS_mb, G4int A); // QuasiFree/Inelastic (fast) |
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89 | G4double CalcQF2IN_Ratio(G4double TCSmb, G4int A); // R=QuasuFree/Inelastic (sig_t in mb) |
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90 | std::pair<G4double,G4double> FetchElTot(G4double pGeV,G4int PDG,G4bool F);//(E,T)fromAMDB |
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91 | std::pair<G4double,G4double> CalcElTot(G4double pGeV,G4int Index);//(sigE,sigT)(Index) |
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92 | |
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93 | // Body |
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94 | private: |
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95 | static std::vector<G4double*> vT; // Vector of pointers to LinTable |
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96 | static std::vector<G4double*> vL; // Vector of pointers to LogTable |
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97 | static std::vector<std::pair<G4double,G4double>*> vX; // Vector of ETPointers to LogTable |
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98 | }; |
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99 | #endif |
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