Gabriele Cosmo
107 lines
3.9 KiB
C++
107 lines
3.9 KiB
C++
//
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// ********************************************************************
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// * DISCLAIMER *
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// * *
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// * The following disclaimer summarizes all the specific disclaimers *
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// * of contributors to this software. The specific disclaimers,which *
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// * govern, are listed with their locations in: *
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// * http://cern.ch/geant4/license *
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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. *
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// * *
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// * This code implementation is the intellectual property of the *
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// * GEANT4 collaboration. *
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// * By copying, distributing or modifying the Program (or any work *
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// * based on the Program) you indicate your acceptance of this *
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// * statement, and all its terms. *
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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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const G4QGSMSplitableHadron & operator=(const G4QGSMSplitableHadron &right);
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virtual void SplitUp();
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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. @@@@ HPW
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std::deque<G4Parton *> Color;
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std::deque<G4Parton *> AntiColor;
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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.back();
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Color.pop_back();
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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.front();
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AntiColor.pop_front();
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return result;
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}
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#endif
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