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25 // 25 //
26 // INCL++ intra-nuclear cascade model 26 // INCL++ intra-nuclear cascade model
27 // Alain Boudard, CEA-Saclay, France << 27 // Pekka Kaitaniemi, CEA and Helsinki Institute of Physics
28 // Joseph Cugnon, University of Liege, Belgium << 28 // Davide Mancusi, CEA
29 // Jean-Christophe David, CEA-Saclay, France << 29 // Alain Boudard, CEA
30 // Pekka Kaitaniemi, CEA-Saclay, France, and H << 30 // Sylvie Leray, CEA
31 // Sylvie Leray, CEA-Saclay, France << 31 // Joseph Cugnon, University of Liege
32 // Davide Mancusi, CEA-Saclay, France <<
33 // 32 //
34 #define INCLXX_IN_GEANT4_MODE 1 33 #define INCLXX_IN_GEANT4_MODE 1
35 34
36 #include "globals.hh" 35 #include "globals.hh"
37 36
38 /* \file G4INCLInteractionAvatar.hh 37 /* \file G4INCLInteractionAvatar.hh
39 * \brief Virtual class for interaction avatar 38 * \brief Virtual class for interaction avatars.
40 * 39 *
41 * This class is inherited by decay and collis 40 * This class is inherited by decay and collision avatars. The goal is to
42 * provide a uniform treatment of common physi 41 * provide a uniform treatment of common physics, such as Pauli blocking,
43 * enforcement of energy conservation, etc. 42 * enforcement of energy conservation, etc.
44 * 43 *
45 * \date Mar 1st, 2011 44 * \date Mar 1st, 2011
46 * \author Davide Mancusi 45 * \author Davide Mancusi
47 */ 46 */
48 47
49 #ifndef G4INCLINTERACTIONAVATAR_HH_ 48 #ifndef G4INCLINTERACTIONAVATAR_HH_
50 #define G4INCLINTERACTIONAVATAR_HH_ 49 #define G4INCLINTERACTIONAVATAR_HH_
51 50
52 #include "G4INCLIAvatar.hh" 51 #include "G4INCLIAvatar.hh"
53 #include "G4INCLNucleus.hh" 52 #include "G4INCLNucleus.hh"
54 #include "G4INCLFinalState.hh" 53 #include "G4INCLFinalState.hh"
55 #include "G4INCLRootFinder.hh" 54 #include "G4INCLRootFinder.hh"
56 #include "G4INCLKinematicsUtils.hh" 55 #include "G4INCLKinematicsUtils.hh"
57 #include "G4INCLAllocationPool.hh" <<
58 56
59 namespace G4INCL { 57 namespace G4INCL {
60 58
61 class InteractionAvatar : public G4INCL::IAv 59 class InteractionAvatar : public G4INCL::IAvatar {
62 public: 60 public:
63 InteractionAvatar(G4double, G4INCL::Nucl 61 InteractionAvatar(G4double, G4INCL::Nucleus*, G4INCL::Particle*);
64 InteractionAvatar(G4double, G4INCL::Nucl 62 InteractionAvatar(G4double, G4INCL::Nucleus*, G4INCL::Particle*, G4INCL::Particle*);
65 virtual ~InteractionAvatar(); 63 virtual ~InteractionAvatar();
66 64
67 /// \brief Target accuracy in the determ 65 /// \brief Target accuracy in the determination of the local-energy Q-value
68 static const G4double locEAccuracy; 66 static const G4double locEAccuracy;
69 /// \brief Max number of iterations for 67 /// \brief Max number of iterations for the determination of the local-energy Q-value
70 static const G4int maxIterLocE; 68 static const G4int maxIterLocE;
71 69
72 /// \brief Release the memory allocated 70 /// \brief Release the memory allocated for the backup particles
73 static void deleteBackupParticles(); 71 static void deleteBackupParticles();
74 72
75 protected: 73 protected:
76 virtual G4INCL::IChannel* getChannel() = 74 virtual G4INCL::IChannel* getChannel() = 0;
77 75
78 G4bool bringParticleInside(Particle * co 76 G4bool bringParticleInside(Particle * const p);
79 77
80 /** \brief Apply local-energy transforma 78 /** \brief Apply local-energy transformation, if appropriate
81 * 79 *
82 * \param p particle to apply the transf 80 * \param p particle to apply the transformation to
83 */ 81 */
84 void preInteractionLocalEnergy(Particle 82 void preInteractionLocalEnergy(Particle * const p);
85 83
86 /** \brief Store the state of the partic 84 /** \brief Store the state of the particles before the interaction
87 * 85 *
88 * If the interaction cannot be realised 86 * If the interaction cannot be realised for any reason, we will need to
89 * restore the particle state as it was 87 * restore the particle state as it was before. This is done by calling
90 * the restoreParticles() method. 88 * the restoreParticles() method.
91 */ 89 */
92 void preInteractionBlocking(); 90 void preInteractionBlocking();
93 91
94 void preInteraction(); 92 void preInteraction();
95 void postInteraction(FinalState *); << 93 FinalState *postInteraction(FinalState *);
96 94
97 /** \brief Restore the state of both par 95 /** \brief Restore the state of both particles.
98 * 96 *
99 * The state must first be stored by cal 97 * The state must first be stored by calling preInteractionBlocking().
100 */ 98 */
101 void restoreParticles() const; 99 void restoreParticles() const;
102 100
103 /// \brief true if the given avatar shou 101 /// \brief true if the given avatar should use local energy
104 G4bool shouldUseLocalEnergy() const; << 102 G4bool shouldUseLocalEnergy() const {
>> 103 if(!theNucleus) return false;
>> 104 LocalEnergyType theLocalEnergyType;
>> 105 if(getType()==DecayAvatarType || isPiN)
>> 106 theLocalEnergyType = theNucleus->getStore()->getConfig()->getLocalEnergyPiType();
>> 107 else
>> 108 theLocalEnergyType = theNucleus->getStore()->getConfig()->getLocalEnergyBBType();
>> 109
>> 110 const G4bool firstAvatar = (theNucleus->getStore()->getBook().getAcceptedCollisions() == 0);
>> 111 return ((theLocalEnergyType == FirstCollisionLocalEnergy && firstAvatar) ||
>> 112 theLocalEnergyType == AlwaysLocalEnergy);
>> 113 }
105 114
106 Nucleus *theNucleus; 115 Nucleus *theNucleus;
107 Particle *particle1, *particle2; 116 Particle *particle1, *particle2;
108 static G4ThreadLocal Particle *backupPar 117 static G4ThreadLocal Particle *backupParticle1, *backupParticle2;
109 ThreeVector boostVector; 118 ThreeVector boostVector;
110 G4double oldTotalEnergy, oldXSec; 119 G4double oldTotalEnergy, oldXSec;
111 G4bool isPiN; 120 G4bool isPiN;
112 G4double weight; <<
113 121
114 private: 122 private:
115 /// \brief RootFunctor-derived object fo 123 /// \brief RootFunctor-derived object for enforcing energy conservation in N-N.
116 class ViolationEMomentumFunctor : public 124 class ViolationEMomentumFunctor : public RootFunctor {
117 public: 125 public:
118 /** \brief Prepare for calling the ( 126 /** \brief Prepare for calling the () operator and scaleParticleMomenta
119 * 127 *
120 * The constructor sets the private 128 * The constructor sets the private class members.
121 */ 129 */
122 ViolationEMomentumFunctor(Nucleus * << 130 ViolationEMomentumFunctor(Nucleus * const nucleus, FinalState const * const finalState, ThreeVector const * const boost, const G4bool localE);
123 virtual ~ViolationEMomentumFunctor() << 131 virtual ~ViolationEMomentumFunctor() { particleMomenta.clear(); }
124 132
125 /** \brief Compute the energy-conser 133 /** \brief Compute the energy-conservation violation.
126 * 134 *
127 * \param x scale factor for the par 135 * \param x scale factor for the particle momenta
128 * \return the energy-conservation v 136 * \return the energy-conservation violation
129 */ 137 */
130 G4double operator()(const G4double x 138 G4double operator()(const G4double x) const;
131 139
132 /// \brief Clean up after root findi 140 /// \brief Clean up after root finding
133 void cleanUp(const G4bool success) c 141 void cleanUp(const G4bool success) const;
134 142
135 private: 143 private:
136 /// \brief List of final-state parti 144 /// \brief List of final-state particles.
137 ParticleList finalParticles; 145 ParticleList finalParticles;
138 /// \brief CM particle momenta, as d 146 /// \brief CM particle momenta, as determined by the channel.
139 std::vector<ThreeVector> particleMom << 147 std::list<ThreeVector> particleMomenta;
140 /// \brief Total energy before the i 148 /// \brief Total energy before the interaction.
141 G4double initialEnergy; 149 G4double initialEnergy;
142 /// \brief Pointer to the nucleus 150 /// \brief Pointer to the nucleus
143 Nucleus *theNucleus; 151 Nucleus *theNucleus;
144 /// \brief Pointer to the boost vect 152 /// \brief Pointer to the boost vector
145 ThreeVector const &boostVector; << 153 ThreeVector const *boostVector;
146 154
147 /// \brief True if we should use loc 155 /// \brief True if we should use local energy
148 const G4bool shouldUseLocalEnergy; 156 const G4bool shouldUseLocalEnergy;
149 157
150 /** \brief Scale the momenta of the 158 /** \brief Scale the momenta of the modified and created particles.
151 * 159 *
152 * Set the momenta of the modified a 160 * Set the momenta of the modified and created particles to alpha times
153 * their original momenta (stored in 161 * their original momenta (stored in particleMomenta). You must call
154 * init() before using this method. 162 * init() before using this method.
155 * 163 *
156 * \param alpha scale factor 164 * \param alpha scale factor
157 */ 165 */
158 void scaleParticleMomenta(const G4do 166 void scaleParticleMomenta(const G4double alpha) const;
159 167
160 }; 168 };
161 169
162 /// \brief RootFunctor-derived object fo << 170 /// \brief RootFunctor-derived object for enforcing energy conservation in pi-N.
163 class ViolationEEnergyFunctor : public R 171 class ViolationEEnergyFunctor : public RootFunctor {
164 public: 172 public:
165 /** \brief Prepare for calling the ( << 173 /** \brief Prepare for calling the () operator and scaleParticleMomenta
166 * 174 *
167 * The constructor sets the private 175 * The constructor sets the private class members.
168 */ 176 */
169 ViolationEEnergyFunctor(Nucleus * co << 177 ViolationEEnergyFunctor(Nucleus * const nucleus, FinalState const * const finalState, const G4bool localE);
170 virtual ~ViolationEEnergyFunctor() { 178 virtual ~ViolationEEnergyFunctor() {}
171 179
172 /** \brief Compute the energy-conser 180 /** \brief Compute the energy-conservation violation.
173 * 181 *
174 * \param x scale factor for the par << 182 * \param x scale factor for the particle momenta
175 * \return the energy-conservation v 183 * \return the energy-conservation violation
176 */ 184 */
177 G4double operator()(const G4double x 185 G4double operator()(const G4double x) const;
178 186
179 /// \brief Clean up after root findi 187 /// \brief Clean up after root finding
180 void cleanUp(const G4bool success) c 188 void cleanUp(const G4bool success) const;
181 189
182 /** \brief Set the energy of the par 190 /** \brief Set the energy of the particle.
183 * 191 *
184 * \param energy 192 * \param energy
185 */ 193 */
186 void setParticleEnergy(const G4doubl 194 void setParticleEnergy(const G4double energy) const;
187 195
188 private: 196 private:
189 /// \brief Total energy before the i 197 /// \brief Total energy before the interaction.
190 G4double initialEnergy; 198 G4double initialEnergy;
191 /// \brief Pointer to the nucleus. 199 /// \brief Pointer to the nucleus.
192 Nucleus *theNucleus; 200 Nucleus *theNucleus;
193 /// \brief The final-state particle. 201 /// \brief The final-state particle.
194 Particle *theParticle; 202 Particle *theParticle;
195 /// \brief The initial energy of the 203 /// \brief The initial energy of the particle.
196 G4double theEnergy; 204 G4double theEnergy;
197 /// \brief The initial momentum of t 205 /// \brief The initial momentum of the particle.
198 ThreeVector theMomentum; 206 ThreeVector theMomentum;
199 /** \brief Threshold for the energy 207 /** \brief Threshold for the energy of the particle
200 * 208 *
201 * The particle (a delta) cannot hav 209 * The particle (a delta) cannot have less than this energy.
202 */ 210 */
203 G4double energyThreshold; 211 G4double energyThreshold;
204 /// \brief Whether we should use loc 212 /// \brief Whether we should use local energy
205 const G4bool shouldUseLocalEnergy; 213 const G4bool shouldUseLocalEnergy;
206 }; 214 };
207 215
208 RootFunctor *violationEFunctor; 216 RootFunctor *violationEFunctor;
209 217
210 protected: 218 protected:
211 /** \brief Enforce energy conservation. 219 /** \brief Enforce energy conservation.
212 * 220 *
213 * Final states generated by the channel 221 * Final states generated by the channels might violate energy conservation
214 * because of different reasons (energy- 222 * because of different reasons (energy-dependent potentials, local
215 * energy...). This conservation law mus 223 * energy...). This conservation law must therefore be enforced by hand. We
216 * do so by rescaling the momenta of the 224 * do so by rescaling the momenta of the final-state particles in the CM
217 * frame. If this turns out to be imposs 225 * frame. If this turns out to be impossible, this method returns false.
218 * 226 *
219 * \return true if the algorithm succeed 227 * \return true if the algorithm succeeded
220 */ 228 */
221 G4bool enforceEnergyConservation(FinalSt 229 G4bool enforceEnergyConservation(FinalState * const fs);
222 230
223 ParticleList modified, created, modified <<
224 <<
225 INCL_DECLARE_ALLOCATION_POOL(Interaction <<
226 }; 231 };
227 232
228 } 233 }
229 234
230 #endif /* G4INCLINTERACTIONAVATAR_HH_ */ 235 #endif /* G4INCLINTERACTIONAVATAR_HH_ */
231 236