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25 | // |
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26 | // |
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27 | // $Id: G4QHadron.hh,v 1.46 2009/09/08 14:04:14 mkossov Exp $ |
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28 | // GEANT4 tag $Name: hadr-chips-V09-03-08 $ |
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29 | // |
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30 | // ---------------- G4QHadron ---------------- |
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31 | // by Mikhail Kossov, Sept 1999. |
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32 | // class header for Hadrons generated by the CHIPS Model |
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33 | // ------------------------------------------------------ |
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34 | // Short description: In CHIPS all particles are G4QHadrons, while they |
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35 | // can be leptons, gammas or nuclei. The G4QPDGCode makes the difference. |
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36 | // In addition the 4-momentum is a basic value, so the mass can be |
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37 | // different from the GS mass (e.g. for the virtual gamma). |
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38 | // ------------------------------------------------------------------- |
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39 | |
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40 | #ifndef G4QHadron_h |
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41 | #define G4QHadron_h 1 |
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42 | |
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43 | #include "globals.hh" |
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44 | #include "G4ThreeVector.hh" |
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45 | #include "G4LorentzVector.hh" |
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46 | #include "Randomize.hh" |
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47 | #include "G4QParticle.hh" |
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48 | #include "G4QPartonVector.hh" |
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49 | #include "G4QPartonPair.hh" |
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50 | #include "G4LorentzRotation.hh" |
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51 | #include <list> |
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52 | |
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53 | class G4QHadron |
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54 | { |
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55 | public: |
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56 | // Constructors |
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57 | G4QHadron(); // Default Constructor |
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58 | G4QHadron(G4LorentzVector p); // Kinematical Constructor |
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59 | G4QHadron(G4int PDGcode, G4LorentzVector p=G4LorentzVector(0.,0.,0.,0.));//CHIPS-W Hadron |
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60 | G4QHadron(G4QPDGCode QPDG, G4LorentzVector p=G4LorentzVector(0.,0.,0.,0.));//CHIPS-W Had. |
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61 | G4QHadron(G4QContent QC, G4LorentzVector p=G4LorentzVector(0.,0.,0.,0.));//QC C-W Hadron |
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62 | G4QHadron(G4int PDG, G4double m, G4QContent QC); // Constructor for Chipolino or Quasmon |
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63 | G4QHadron(G4QPDGCode QPDG, G4double m, G4QContent QC);// Constr. for Chipolino or Quasmon |
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64 | G4QHadron(G4int PDG, G4LorentzVector p, G4QContent QC);// Constr for Chipolino or Quasmon |
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65 | G4QHadron(G4QPDGCode QPDG, G4LorentzVector p, G4QContent QC);// Con. for Chipo or Quasmon |
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66 | G4QHadron(G4QParticle* pPart, G4double maxM); // Constructor for Res with RANDOM mass |
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67 | G4QHadron(const G4QHadron& right); // Copy constructor by object |
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68 | G4QHadron(const G4QHadron* right); // Copy constructor by pointer |
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69 | G4QHadron(const G4QHadron* right, G4int ColC, G4ThreeVector Pos, G4LorentzVector Mom); |
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70 | virtual ~G4QHadron(); // Destructor |
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71 | // Operators |
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72 | const G4QHadron& operator=(const G4QHadron& right); |
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73 | G4bool operator==(const G4QHadron& right) const; |
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74 | G4bool operator!=(const G4QHadron& right) const; |
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75 | // Selectors |
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76 | G4int GetPDGCode() const; // Get PDG code of the Hadron |
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77 | G4int GetQCode() const; // Get Q code of the Hadron |
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78 | G4QPDGCode GetQPDG() const; // Get QPDG of the Hadron |
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79 | G4double GetSpin() const{return .5*(GetPDGCode()%10-1);} |
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80 | G4LorentzVector Get4Momentum() const{return theMomentum;} // Get 4-mom of Hadron |
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81 | G4ThreeVector Get3Momentum() const{return theMomentum.vect();}// Get 3-mom ofH |
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82 | G4double GetEnergy() const{return theMomentum.e();} // Get E of Hadron |
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83 | G4QContent GetQC() const; // Get private quark content |
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84 | G4double GetMass() const; // Get a mass of the Hadron |
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85 | G4double GetMass2() const; // Get an m^2 value for the Hadron |
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86 | G4double GetWidth() const; // Get Width of Hadron |
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87 | G4int GetNFragments() const; // Get a#of Fragments of this Hadron |
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88 | G4int GetCharge() const; // Get Charge of the Hadron |
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89 | G4int GetStrangeness() const; // Get Strangeness of the Hadron |
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90 | G4int GetBaryonNumber() const; // Get Baryon Number of the Hadron |
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91 | const G4ThreeVector& GetPosition() const; // Get hadron coordinates |
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92 | G4double GetBindingEnergy() {return bindE;}// Returns binding E in NucMatter |
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93 | G4double GetFormationTime() {return formTime;} // Returns formation time |
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94 | std::list<G4QParton*> GetColor() {return Color;} // pointer to quarks/anti-diquarks |
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95 | std::list<G4QParton*> GetAntiColor() {return AntiColor;}//pointer to anti-quarks/diquarks |
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96 | // Modifiers |
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97 | void SetQPDG(const G4QPDGCode& QPDG); // Set QPDG of the Hadron |
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98 | void SetPDGCode(const G4QPDGCode& PDG){SetQPDG(G4QPDGCode(PDG));}// Set PDGCode of Hadron |
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99 | void Set4Momentum(const G4LorentzVector& aMom); // Set 4-mom of the Hadron |
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100 | void SetQC(const G4QContent& newQC); // Set new private quark content |
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101 | void SetNFragments(const G4int& nf); // Set a#of Fragments of this Hadron |
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102 | void NegPDGCode(); // Change a sign of the PDG code |
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103 | void MakeAntiHadron(); // Make AntiHadron of this Hadron |
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104 | void SetPosition(const G4ThreeVector& aPosition); // Set coordinates of hadron position |
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105 | void IncrementCollisionCount(G4int aCount) {theCollisionCount+=aCount;}// IncrTheCCounter |
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106 | void SplitUp(); // Make QGSM String Splitting of Hadron |
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107 | G4QPartonPair* SplitInTwoPartons(); // RandomSplit ofTheHadron in 2 partons |
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108 | G4QParton* GetNextParton(); // Next Parton in a string |
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109 | G4QParton* GetNextAntiParton(); // Next Anti-Parton in a string |
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110 | void SetBindingEnergy(G4double aBindE){bindE=aBindE;}// Set Binding E in Nuclear Matter |
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111 | void Boost(const G4LorentzVector& theBoost); // Boosts hadron's 4-Momentum using 4M |
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112 | void Boost(const G4ThreeVector& B){theMomentum.boost(B);} // Boosts 4-Momentum using v/c |
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113 | void LorentzRotate(const G4LorentzRotation& rotation){theMomentum=rotation*theMomentum;} |
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114 | void SetFormationTime(G4double fT){formTime=fT;} // Defines formationTime for the Hadron |
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115 | |
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116 | // General |
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117 | G4double RandomizeMass(G4QParticle* pPart, G4double maxM); // Randomize a mass value |
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118 | G4bool TestRealNeutral(); |
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119 | G4bool DecayIn2(G4LorentzVector& f4Mom, G4LorentzVector& s4Mom); |
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120 | G4bool CorMDecayIn2(G4double corM, G4LorentzVector& fr4Mom);// This(newMass corM)+fr4Mom |
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121 | G4bool CorEDecayIn2(G4double corE, G4LorentzVector& fr4Mom);// This(E+=cE,P)+f(fE-=cE,fP) |
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122 | G4bool RelDecayIn2(G4LorentzVector& f4Mom, G4LorentzVector& s4Mom, G4LorentzVector& dir, |
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123 | G4double maxCost = 1., G4double minCost = -1.); |
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124 | G4bool CopDecayIn2(G4LorentzVector& f4Mom, G4LorentzVector& s4Mom, G4LorentzVector& dir, |
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125 | G4double cop); |
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126 | G4bool DecayIn3(G4LorentzVector& f4Mom, G4LorentzVector& s4Mom, G4LorentzVector& t4Mom); |
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127 | G4bool RelDecayIn3(G4LorentzVector& fh4M, G4LorentzVector& sh4M, G4LorentzVector& th4Mom, |
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128 | G4LorentzVector& dir, G4double maxCost = 1., G4double minCost = -1.); |
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129 | G4bool CopDecayIn3(G4LorentzVector& fh4M, G4LorentzVector& sh4M, G4LorentzVector& th4Mom, |
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130 | G4LorentzVector& dir, G4double cosp); |
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131 | void Init3D(); // Initializes 3D nucleus with (Pos,4M)nucleons |
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132 | private: |
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133 | // Private methods |
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134 | void DefineQC(G4int PDGCode); |
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135 | G4QParton* BuildSeaQuark(G4bool isAntiQuark, G4int aPDGCode); |
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136 | G4double SampleCHIPSX(G4double anXtot, G4int nSea); |
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137 | G4double* RandomX(G4int nPart); |
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138 | void GetValenceQuarkFlavors(G4QParton* &Part1,G4QParton* &Part2); |
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139 | G4ThreeVector GaussianPt(G4double widthSquare, G4double maxPtSquare); |
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140 | G4bool SplitMeson(G4int PDGcode, G4int* aEnd, G4int* bEnd); |
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141 | G4bool SplitBaryon(G4int PDGcode, G4int* aEnd, G4int* bEnd); |
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142 | |
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143 | protected: |
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144 | G4LorentzVector theMomentum; // The 4-mom of Hadron |
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145 | |
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146 | private: |
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147 | // Static Parameters of QGSM Splitting |
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148 | static G4double StrangeSuppress; // ? M.K. |
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149 | static G4double sigmaPt; // Can be 0 ? |
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150 | static G4double widthOfPtSquare; // ? M.K. |
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151 | // Body |
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152 | G4QPDGCode theQPDG; // Instance of QPDG for the Hadron |
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153 | G4QContent valQ; // QC (@@ for Quasmon and Chipolino?) |
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154 | G4int nFragm; // 0 - stable, N - decayed in N part's |
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155 | // Body of Splitable Hadron and Nuclear Nucleon |
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156 | G4ThreeVector thePosition; // Coordinates of Hadron position |
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157 | G4int theCollisionCount; // ? |
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158 | G4bool isSplit; // Flag, that splitting was done |
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159 | G4bool Direction; // FALSE=target, TRUE=projectile |
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160 | std::list<G4QParton*> Color; // container for quarks & anti-diquarks |
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161 | std::list<G4QParton*> AntiColor; // container for anti-quarks & diquarks |
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162 | G4double bindE; // Binding energy in nuclear matter |
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163 | G4double formTime; // Formation time for the hadron |
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164 | }; |
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165 | |
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166 | typedef std::pair<G4QHadron*, G4QHadron*> G4QHadronPair; |
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167 | |
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168 | inline G4bool G4QHadron::operator==(const G4QHadron &rhs) const {return this==&rhs;} |
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169 | inline G4bool G4QHadron::operator!=(const G4QHadron &rhs) const {return this!=&rhs;} |
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170 | |
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171 | inline G4int G4QHadron::GetPDGCode() const {return theQPDG.GetPDGCode();} |
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172 | inline G4int G4QHadron::GetQCode() const {return theQPDG.GetQCode();} |
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173 | inline G4QPDGCode G4QHadron::GetQPDG() const {return theQPDG;} |
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174 | inline G4QContent G4QHadron::GetQC() const {return valQ;} |
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175 | inline G4int G4QHadron::GetNFragments() const {return nFragm;} |
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176 | //@@ This is an example how to make other inline selectors for the 4-Momentum of the Hadron |
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177 | inline G4double G4QHadron::GetMass() const {return theMomentum.m();} |
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178 | inline G4double G4QHadron::GetMass2() const {return theMomentum.m2();} |
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179 | //@@ This is an example how to make other inline selectors for the Hadron |
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180 | inline G4int G4QHadron::GetCharge() const {return valQ.GetCharge();} |
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181 | inline G4int G4QHadron::GetStrangeness() const {return valQ.GetStrangeness();} |
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182 | inline G4int G4QHadron::GetBaryonNumber() const {return valQ.GetBaryonNumber();} |
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183 | inline const G4ThreeVector& G4QHadron::GetPosition() const {return thePosition;} |
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184 | //inline G4int G4QHadron::GetSoftCollisionCount() {return theCollisionCount;} |
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185 | |
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186 | inline void G4QHadron::MakeAntiHadron() {if(TestRealNeutral()) NegPDGCode();} |
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187 | inline void G4QHadron::SetQC(const G4QContent& newQC) {valQ=newQC;} |
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188 | inline void G4QHadron::Set4Momentum(const G4LorentzVector& aMom) {theMomentum=aMom;} |
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189 | inline void G4QHadron::SetNFragments(const G4int& nf) {nFragm=nf;} |
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190 | inline void G4QHadron::SetPosition(const G4ThreeVector& position) {thePosition=position;} |
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191 | |
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192 | inline void G4QHadron::NegPDGCode() {theQPDG.NegPDGCode(); valQ.Anti();} |
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193 | inline G4bool G4QHadron::TestRealNeutral() { return theQPDG.TestRealNeutral();} |
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194 | |
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195 | #endif |
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