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G4QEnvironment.hh
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27 // $Id$
28 //
29 // ---------------- G4QEnvironment ----------------
30 // by Mikhail Kossov, August 2000.
31 // header for Multy Quasmon Environment in the CHIPS Model
32 // ------------------------------------------------------------
33 // Short description: The G4QEnvironment class corresponds to the nuclear
34 // environment, containing excited nucleons or nuclear clusters
35 // (G4Quasmons). In the constructer the nucleus (G4QNucleus) is clusterized
36 // and then the projectile hadron (or hadrons) can create one (or a few)
37 // Quasmons, which are fragmented by the Fragment member function. As a
38 // result a vector of G4QHadrons is created, which can include the residual
39 // nucleus in the ground state.
40 //---------------------------------------------------------------------
41 
42 #ifndef G4QEnvironment_h
43 #define G4QEnvironment_h 1
44 
45 #include "G4RandomDirection.hh"
46 #include "G4QuasmonVector.hh"
47 #include "G4QFreeScattering.hh"
48 #include "G4QThd.hh"
49 
50 class G4QEnvironment
51 {
52 public:
53  G4QEnvironment(const G4QNucleus& theEnv); // Create Env and add Quasmons
54  // later
55  G4QEnvironment(const G4QHadronVector& projHadrons, const G4int targPDG);
56  G4QEnvironment(const G4QEnvironment& right); // copy QEnvironment by value
57  G4QEnvironment(G4QEnvironment* right); // copy QEnvironment by pointer
58  ~G4QEnvironment(); // Public Destructor
59 
60  // Overloaded operators
61  const G4QEnvironment& operator=(const G4QEnvironment& right);
62  G4bool operator==(const G4QEnvironment &right) const;
63  G4bool operator!=(const G4QEnvironment &right) const;
64 
65  //Selectors
66  G4QNucleus GetEnvironment() const;
67  G4QuasmonVector* GetQuasmons(); // User is responsible for Destroy/Clear/Delete
68  G4QHadronVector* GetQHadrons(); // User is responsible for Destroy/Clear/Delete
69  G4QHadronVector* GetProjectiles(); // User is responsible for Destroy/Clear/Delete
70 
71  // Modifiers
72  void AddQuasmon(G4Quasmon* Q); // Add aQuasmon to theEnvironment
73  G4QHadronVector* Fragment(); // User must clear and destroy the G4QHadronVec
74 
75  // External managment
76  void DecayBaryon(G4QHadron* dB, G4QHadronVector* HV); // Decay baryon
77  void DecayMeson(G4QHadron* dB, G4QHadronVector* HV); // Decay meson
78  void DecayAntistrange(G4QHadron* aS, G4QHadronVector* HV);// Decay AntiStrNuc
79  void CheckMassShell(G4QHadronVector* HV); // All hadrons on mass shell
80 
81  // Static functions
82  static void SetParameters(G4double solAn=0.4,G4bool efFlag=false,G4double piThresh=141.4,
83  G4double mpisq=20000., G4double dinum=1880.);
84  static void OpenElectromagneticDecays();
85  static void CloseElectromagneticDecays();
86 
87 protected:
88  void CleanUpQHadrons(); // Only another G4QEnvironment issue can use it (can make mess)
89  void FillQHadrons(G4QHadronVector* input); //Only another G4QEnvironment issue can use it
90 
91 private:
92  G4QHadronVector* FSInteraction(); // Final State Interaction after Hadronization
93  G4QHadronVector HadronizeQEnvironment(); // Main HadronizationFunction used in Fragment
94  void CopyAndDeleteHadronVector(G4QHadronVector* HV);//Copy HadrVect to Output
95  void CreateQuasmon(const G4QContent& pQC, const G4LorentzVector& p4M, G4bool f=false);
96  void InitClustersVector(G4int maxC, G4int maxA);//Init.NucClust's for 1st int
97  void CleanUp(); // Makes theEnvironment=vacuum & kill Quasmons
98  void PrepareInteractionProbabilities(const G4QContent& projQC, G4double AP);
99  void EvaporateResidual(G4QHadron* h, G4bool f=true);// Evaporate NuclearFragm
100  G4bool CheckGroundState(G4Quasmon* quasm,G4bool corFlag=false);//as G4Q for QHV
101  G4bool DecayInEnvQ(G4Quasmon* quasm); // Use befor evaporation in PANIC case
102 
103 // Body
104 private:
105  // Static Parameters
106  static G4bool WeakDecays; // Flag for opening WeakDecays (notUsed: allAreClosed)
107  static G4bool ElMaDecays; // Flag for opening ElectroMagDecays (true by default)
108  static G4bool EnergyFlux; // Flag for Energy Flux use instead of Multy Quasmon
109  static G4double SolidAngle; // Part of Solid Angle to capture secondaries(@@A-dep)
110  static G4double PiPrThresh; // Pion Production Threshold for gammas
111  static G4double M2ShiftVir; // Shift for M2=-Q2=m_pi^2 of the virtual gamma
112  static G4double DiNuclMass; // Double Nucleon Mass for virtual normalization
113  // Output hadrons
114  G4QHadronVector theQHadrons; // Vector of generated secondary hadrons
115  // Internal working objects
116  G4QHadronVector intQHadrons; // Vector of postponed secondary hadrons
117  G4QCHIPSWorld* theWorld; // the CHIPS World
118  G4int nBarClust; // Maximum BarionNumber of clusters (To optimize calc)
119  G4double f2all; // Ratio of freeNucleons to free+denseNucleons
120  G4QuasmonVector theQuasmons; // Intermediate vectorOfQuasmons before fragmentation
121  G4QCandidateVector theQCandidates; // Vector of possible candidates to clusters
122  G4QNucleus theEnvironment; // InitialNucleus (later ResidualNuclearEnvironment)
123  G4LorentzVector tot4Mom; // Total 4-momentum in the reaction
124  G4int totCharge; // Total charge in the reaction (for current control)
125  G4int totBaryoN; // Total baryon number in the reaction (for cur.cont)
126  G4QHadronVector theProjectiles; // Vector of projectiles in the interaction
127  G4int theTargetPDG; // PDG of the target nucleus in the interaction
128  G4QFreeScattering* theQFScat; // Pointer to the CHIPS Quasi-Free Scatterer
129 };
130 
131 // Inline functions
132 inline G4bool G4QEnvironment::operator==(const G4QEnvironment &rhs) const
133  {return this == &rhs;}
134 inline G4bool G4QEnvironment::operator!=(const G4QEnvironment &rhs) const
135  {return this != &rhs;}
136 inline G4QNucleus G4QEnvironment::GetEnvironment() const {return theEnvironment;}
137 
138 #endif
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