Gabriele Cosmo
122 lines
4.2 KiB
C++
122 lines
4.2 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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#ifndef G4QGSMSplitableHadron_h
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#define G4QGSMSplitableHadron_h 1
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#include "G4VSplitableHadron.hh"
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#include "G4PartonVector.hh"
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#include "G4MesonSplitter.hh"
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#include "G4BaryonSplitter.hh"
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#include "Randomize.hh"
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#include <deque>
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// based on prototype by Maxim Komogorov
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// Splitting into methods, and centralizing of model parameters HPW Feb 1999
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// continued clean-up of interfaces and algorithms HPW 1999.
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// Redesign of data structures and algorithms HPW Feb 1999
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class G4QGSMSplitableHadron : public G4VSplitableHadron
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{
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public:
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G4QGSMSplitableHadron();
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G4QGSMSplitableHadron(const G4ReactionProduct & aPrimary);
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G4QGSMSplitableHadron(const G4ReactionProduct & aPrimary, G4bool Direction);
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G4QGSMSplitableHadron(const G4Nucleon & aNucleon);
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G4QGSMSplitableHadron(const G4Nucleon & aNucleon, G4bool Direction);
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virtual ~G4QGSMSplitableHadron();
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private:
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const G4QGSMSplitableHadron & operator=(const G4QGSMSplitableHadron &right);
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public:
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virtual void SplitUp();
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virtual void SetFirstParton(G4int PDGcode);
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virtual void SetSecondParton(G4int PDGcode);
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virtual G4Parton * GetNextParton();
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virtual G4Parton * GetNextAntiParton();
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private:
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void InitParameters();
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void DiffractiveSplitUp();
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void SoftSplitUp();
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G4ThreeVector GaussianPt(G4double widthSquare, G4double maxPtSquare);
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void GetValenceQuarkFlavors(const G4ParticleDefinition * aPart,
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G4Parton *& Parton1, G4Parton *& Parton2);
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G4Parton * BuildSeaQuark(G4bool isAntiQuark, G4int aPDGCode, G4int nSeaPair);
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G4double SampleX(G4double anXmin, G4int nSea, G4int theTotalSea, G4double aBeta);
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private:
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// aggregated data
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G4bool Direction; // FALSE is target. - candidate for more detailed design.
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std::deque<G4Parton *> Color;
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std::deque<G4Parton *> AntiColor;
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unsigned int iP;
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unsigned int iAP;
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private:
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// associated classes
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G4MesonSplitter theMesonSplitter;
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G4BaryonSplitter theBaryonSplitter;
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private:
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// model parameters
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G4double alpha;
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G4double beta;
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G4double theMinPz;
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G4double StrangeSuppress;
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G4double sigmaPt;
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G4double widthOfPtSquare;
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G4double minTransverseMass;
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};
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inline G4Parton* G4QGSMSplitableHadron::GetNextParton()
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{
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if(Color.size()==0) return 0;
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G4Parton * result = Color.operator[](iP);
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iP++; if(iP == Color.size()) iP=0;
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return result;
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}
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inline G4Parton* G4QGSMSplitableHadron::GetNextAntiParton()
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{
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if(AntiColor.size() == 0) return 0;
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G4Parton * result = AntiColor.operator[](iAP);
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iAP++; if(iAP == AntiColor.size()) iAP=0;
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return result;
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}
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inline void G4QGSMSplitableHadron::SetFirstParton(G4int)
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{}
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inline void G4QGSMSplitableHadron::SetSecondParton(G4int)
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{}
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#endif
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