Gabriele Cosmo
138 lines
7.5 KiB
C++
138 lines
7.5 KiB
C++
//
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// ********************************************************************
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// * License and Disclaimer *
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// * *
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// * The Geant4 software is copyright of the Copyright Holders of *
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// * the Geant4 Collaboration. It is provided under the terms and *
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// * conditions of the Geant4 Software License, included in the file *
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// * LICENSE and available at http://cern.ch/geant4/license . These *
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// * include a list of copyright holders. *
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// * *
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// * Neither the authors of this software system, nor their employing *
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// * institutes,nor the agencies providing financial support for this *
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// * work make any representation or warranty, express or implied, *
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// * regarding this software system or assume any liability for its *
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// * use. Please see the license in the file LICENSE and URL above *
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// * for the full disclaimer and the limitation of liability. *
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// * *
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// * This code implementation is the result of the scientific and *
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// * technical work of the GEANT4 collaboration. *
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// * By using, copying, modifying or distributing the software (or *
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// * any work based on the software) you agree to acknowledge its *
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// * use in resulting scientific publications, and indicate your *
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// * acceptance of all terms of the Geant4 Software license. *
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// ********************************************************************
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//
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//
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//
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//
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// GEANT4 physics class: G4QuasiElRatios -- header file
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// M.V. Kossov, ITEP(Moscow), 24-OCT-01
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// The last update: M.V. Kossov, CERN/ITEP (Moscow) 15-Oct-2006
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// ----------------------------------------------------------------------
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// This class has been extracted from the CHIPS model.
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// All the dependencies on CHIPS classes have been removed.
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// Short description: Provides percentage of quasi-free and quasi-elastic
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// reactions in the inelastic reactions.
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// ----------------------------------------------------------------------
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#ifndef G4QuasiElRatios_h
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#define G4QuasiElRatios_h 1
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#include "globals.hh"
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#include "G4ios.hh"
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#include "Randomize.hh"
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#include <vector>
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#include "G4LorentzVector.hh"
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#include "G4ChipsProtonElasticXS.hh"
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#include "G4ChipsNeutronElasticXS.hh"
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class G4QuasiElRatios
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{
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public:
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G4QuasiElRatios(); // Constructor
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~G4QuasiElRatios(); // Destructor
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// Pair(QuasiFree/Inelastic,QuasiElastic/QuasiFree)
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std::pair<G4double,G4double> GetRatios(G4double pIU, G4int prPDG, G4int tgZ, G4int tgN);
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// ChargeExchange/QuasiElastic factor pair<for protons (Z), for neutrons(N)>
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std::pair<G4double,G4double> GetChExFactor(G4double pIU, G4int pPDG, G4int Z, G4int N);
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// scatter (pPDG,p4M) on a virtual nucleon (NPDG,N4M), result: final pair(newN4M,newp4M)
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// if(newN4M.e()==0.) - below threshold, XS=0, no scattering of the projectile happened
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std::pair<G4LorentzVector,G4LorentzVector> Scatter(G4int NPDG, G4LorentzVector N4M,
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G4int pPDG, G4LorentzVector p4M);
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// ChExer (pPDG,p4M) on a virtual nucleon (NPDG,N4M), result: final pair(newN4M,newp4M)
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// if(newN4M.e()==0.) - keep projectile, XS=0, no interaction of the progectile happened
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// User should himself change the charge (PDG) (e.g. pn->np, pi+n->pi0p, pi-p->pi0n etc.)
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// Recepy: change target n to p or taget p to n and conserve enrgy, changing projectile
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// Do not use for the nucleon, as it is already included in quasielastic, and for pi0.
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std::pair<G4LorentzVector,G4LorentzVector> ChExer(G4int NPDG, G4LorentzVector N4M,
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G4int pPDG, G4LorentzVector p4M);
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// 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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std::pair<G4double,G4double> GetElTot(G4double pIU, G4int hPDG, G4int Z, G4int N); //(IU)
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// Calculate ChEx/El ratio coefficient (p is in independent units, (Z,N) is a target)
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G4double ChExElCoef(G4double p, G4int Z, G4int N, G4int pPDG);
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// For hadron PDG with momentum Mom (GeV/c) on F(p/n) calculate <sig_el,sig_tot> pair(mb)
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// F=true corresponds to the Nroton target, F=false corresponds to the Proton target
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std::pair<G4double,G4double> GetElTotXS(G4double Mom, G4int PDG, G4bool F);//<sigEl,sigT>
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std::pair<G4double,G4double> FetchElTot(G4double pGeV,G4int PDG,G4bool F);//<E,T>fromAMDB
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G4bool RelDecayIn2(G4LorentzVector& theMomentum, G4LorentzVector& f4Mom,
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G4LorentzVector& s4Mom, G4LorentzVector& dir,
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G4double maxCost = 1., G4double minCost = -1.);
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private:
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G4ChipsProtonElasticXS* PCSmanager;
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G4ChipsNeutronElasticXS* NCSmanager;
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// These working member functions are in CHIPS units and must not be used externally
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G4double GetQF2IN_Ratio(G4double TotCS_mb, G4int A); // QuasiFree/Inelastic (fast)
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G4double CalcQF2IN_Ratio(G4double TCSmb, G4int A); // R=QuasuFree/Inelastic (sig_t in mb)
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std::pair<G4double,G4double> CalcElTot(G4double pGeV,G4int Index);//(sigEl,sigTot)(Index)
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// Body
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private:
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std::vector<G4double*> *vT; // Vector of pointers to LinTable
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std::vector<G4double*> *vL; // Vector of pointers to LogTable
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std::vector<std::pair<G4double,G4double>*> *vX; // Vector of ETPointers to LogTable
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G4double lastSRatio; // The last sigma value for which R was calculated
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G4double lastRRatio; // The last ratio R which was calculated
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std::vector<G4int> vARatio;
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std::vector<G4double> vHRatio; // Vector of max s initialized in the LinTable
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std::vector<G4int> vNRatio; // Vector of topBin number initialized in LinTable
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std::vector<G4double> vMRatio; // Vector of rel max ln(s) initialized in LogTable
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std::vector<G4int> vKRatio; // Vector of topBin number initialized in LogTable
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G4int lastARatio; // theLast of calculated A
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G4double lastHRatio; // theLast of max s initialized in the LinTable
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G4int lastNRatio; // theLast of topBin number initialized in LinTable
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G4double lastMRatio; // theLast of rel max ln(s) initialized in LogTable
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G4int lastKRatio; // theLast of topBin number initialized in LogTable
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G4double* lastTRatio; // theLast of pointer to LinTable in the C++ heap
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G4double* lastLRatio; // theLast of pointer to LogTable in the C++ heap
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G4double lastPtot; // The last momentum for which XS was calculated
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G4int lastHtot; // The last projPDG for which XS was calculated
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G4bool lastFtot; // The last nucleon for which XS was calculated
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std::pair<G4double,G4double> lastRtot; // The last result
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std::vector<G4int> vItot; // Vector of index for which XS was calculated
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std::vector<G4double> vMtot; // Vector of rel max ln(p) initialized in LogTable
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std::vector<G4int> vKtot; // Vector of topBin number initialized in LogTable
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G4int lastItot; // The Last index for which XS was calculated
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G4double lastMtot; // The Last rel max ln(p) initialized in LogTable
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G4int lastKtot; // The Last topBin number initialized in LogTable
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std::pair<G4double,G4double>* lastXtot; // The Last ETPointers to LogTable in heap
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};
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#endif
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