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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 << 32 //
>> 33 // INCL++ revision: v5.1.8
33 // 34 //
34 #define INCLXX_IN_GEANT4_MODE 1 35 #define INCLXX_IN_GEANT4_MODE 1
35 36
36 #include "globals.hh" 37 #include "globals.hh"
37 38
38 #include "G4INCLKinematicsUtils.hh" 39 #include "G4INCLKinematicsUtils.hh"
39 #include "G4INCLParticleTable.hh" 40 #include "G4INCLParticleTable.hh"
40 41
41 namespace G4INCL { 42 namespace G4INCL {
42 43
43 namespace KinematicsUtils { << 44 void KinematicsUtils::transformToLocalEnergyFrame(Nucleus const * const n, Particle * const p) {
44 << 45 const G4double localEnergy = KinematicsUtils::getLocalEnergy(n, p);
45 G4double fiveParFit (const G4double a, const <<
46 return a+b*std::pow(x, c)+d*std::log(x)+e* <<
47 } <<
48 <<
49 G4double compute_xs(const std::vector<G4doub <<
50 G4double sigma = 0.; <<
51 G4double Ethreshold = 0.0; <<
52 if(coefficients.size() == 6){ <<
53 Ethreshold = coefficients[5]; <<
54 if(Ethreshold >= 5){ //there are no <<
55 if(pLab > Ethreshold){ // E is E <<
56 return 0.; <<
57 } <<
58 } <<
59 else{ <<
60 if(pLab < Ethreshold){ <<
61 return 0.; <<
62 } <<
63 } <<
64 } <<
65 <<
66 sigma = fiveParFit(coefficients[0],coeff <<
67 if(sigma < 0.){ <<
68 return 0.; <<
69 }; <<
70 return sigma; <<
71 } <<
72 <<
73 void transformToLocalEnergyFrame(Nucleus con <<
74 // assert(!p->isMeson() && !p->isPhoton() && ! <<
75 const G4double localEnergy = getLocalEnerg <<
76 const G4double localTotalEnergy = p->getEn 46 const G4double localTotalEnergy = p->getEnergy() - localEnergy;
77 p->setEnergy(localTotalEnergy); 47 p->setEnergy(localTotalEnergy);
78 p->adjustMomentumFromEnergy(); 48 p->adjustMomentumFromEnergy();
79 } 49 }
80 50
81 G4double getLocalEnergy(Nucleus const * cons << 51 G4double KinematicsUtils::getLocalEnergy(Nucleus const * const n, Particle * const p) {
82 // assert(!p->isMeson() && !p->isPhoton() && ! << 52 // assert(!p->isPion()); // No local energy for pions
>> 53
83 G4double vloc = 0.0; 54 G4double vloc = 0.0;
84 const G4double r = p->getPosition().mag(); 55 const G4double r = p->getPosition().mag();
85 const G4double mass = p->getMass(); 56 const G4double mass = p->getMass();
86 57
87 // Local energy is constant outside the su 58 // Local energy is constant outside the surface
88 if(r > n->getUniverseRadius()) { 59 if(r > n->getUniverseRadius()) {
89 INCL_WARN("Tried to evaluate local energ << 60 WARN("Tried to evaluate local energy for a particle outside the maximum radius."
90 << '\n' << p->print() << '\n' << 61 << std::endl << p->print() << std::endl
91 << "Maximum radius = " << n->getDe << 62 << "Maximum radius = " << n->getDensity()->getMaximumRadius() << std::endl
92 << "Universe radius = " << n->getU << 63 << "Universe radius = " << n->getUniverseRadius() << std::endl);
93 return 0.0; 64 return 0.0;
94 } 65 }
95 66
96 G4double pfl0 = 0.0; 67 G4double pfl0 = 0.0;
97 const ParticleType t = p->getType(); <<
98 const G4double kinE = p->getKineticEnergy( 68 const G4double kinE = p->getKineticEnergy();
99 if(kinE <= n->getPotential()->getFermiEner << 69 if(kinE <= n->getPotential()->getFermiEnergy(p->getType())) {
100 pfl0 = n->getPotential()->getFermiMoment 70 pfl0 = n->getPotential()->getFermiMomentum(p);
101 } else { 71 } else {
102 const G4double tf0 = p->getPotentialEner 72 const G4double tf0 = p->getPotentialEnergy() - n->getPotential()->getSeparationEnergy(p);
103 if(tf0<0.0) return 0.0; 73 if(tf0<0.0) return 0.0;
104 pfl0 = std::sqrt(tf0*(tf0 + 2.0*mass)); << 74 pfl0 = std::sqrt(tf0*(tf0 + 2.0*mass));
105 } 75 }
106 const G4double pReflection = p->getReflect << 76 const G4double pl = pfl0*n->getDensity()->getMaxTFromR(r);
107 const G4double reflectionRadius = n->getDe <<
108 const G4double pNominal = p->getMomentum() <<
109 const G4double nominalReflectionRadius = n <<
110 const G4double pl = pfl0*n->getDensity()-> <<
111 vloc = std::sqrt(pl*pl + mass*mass) - mass 77 vloc = std::sqrt(pl*pl + mass*mass) - mass;
112 78
113 return vloc; 79 return vloc;
114 } 80 }
115 81
116 ThreeVector makeBoostVector(Particle const * << 82 ThreeVector KinematicsUtils::makeBoostVector(Particle const * const p1, Particle const * const p2){
117 const G4double totalEnergy = p1->getEnergy 83 const G4double totalEnergy = p1->getEnergy() + p2->getEnergy();
118 return ((p1->getMomentum() + p2->getMoment 84 return ((p1->getMomentum() + p2->getMomentum())/totalEnergy);
119 } 85 }
120 86
121 G4double totalEnergyInCM(Particle const * co << 87 G4double KinematicsUtils::totalEnergyInCM(Particle const * const p1, Particle const * const p2){
122 return std::sqrt(squareTotalEnergyInCM(p1, 88 return std::sqrt(squareTotalEnergyInCM(p1,p2));
123 } 89 }
124 90
125 G4double squareTotalEnergyInCM(Particle cons << 91 G4double KinematicsUtils::squareTotalEnergyInCM(Particle const * const p1, Particle const * const p2) {
126 G4double beta2 = makeBoostVector(p1, p2).m << 92 G4double beta2 = KinematicsUtils::makeBoostVector(p1, p2).mag2();
127 if(beta2 > 1.0) { 93 if(beta2 > 1.0) {
128 INCL_ERROR("squareTotalEnergyInCM: beta2 << 94 ERROR("KinematicsUtils::squareTotalEnergyInCM: beta2 == " << beta2 << " > 1.0" << std::endl);
129 beta2 = 0.0; 95 beta2 = 0.0;
130 } 96 }
131 return (1.0 - beta2)*std::pow(p1->getEnerg 97 return (1.0 - beta2)*std::pow(p1->getEnergy() + p2->getEnergy(), 2);
132 } 98 }
133 99
134 G4double momentumInCM(Particle const * const << 100 G4double KinematicsUtils::momentumInCM(Particle const * const p1, Particle const * const p2) {
135 const G4double m1sq = std::pow(p1->getMass 101 const G4double m1sq = std::pow(p1->getMass(),2);
136 const G4double m2sq = std::pow(p2->getMass 102 const G4double m2sq = std::pow(p2->getMass(),2);
137 const G4double z = p1->getEnergy()*p2->get 103 const G4double z = p1->getEnergy()*p2->getEnergy() - p1->getMomentum().dot(p2->getMomentum());
138 G4double pcm2 = (z*z-m1sq*m2sq)/(2*z+m1sq+ 104 G4double pcm2 = (z*z-m1sq*m2sq)/(2*z+m1sq+m2sq);
139 if(pcm2 < 0.0) { 105 if(pcm2 < 0.0) {
140 INCL_ERROR("momentumInCM: pcm2 == " << p << 106 ERROR("KinematicsUtils::momentumInCM: pcm2 == " << pcm2 << " < 0.0" << std::endl);
141 pcm2 = 0.0; 107 pcm2 = 0.0;
142 } 108 }
143 return std::sqrt(pcm2); 109 return std::sqrt(pcm2);
144 } 110 }
145 111
146 G4double momentumInCM(const G4double E, cons << 112 G4double KinematicsUtils::momentumInCM(const G4double E, const G4double M1, const G4double M2) {
147 return 0.5*std::sqrt((E*E - std::pow(M1 + 113 return 0.5*std::sqrt((E*E - std::pow(M1 + M2, 2))
148 *(E*E - std::pow(M1 - M2, 2)))/E; 114 *(E*E - std::pow(M1 - M2, 2)))/E;
149 } 115 }
150 116
151 G4double momentumInLab(const G4double s, con << 117 G4double KinematicsUtils::momentumInLab(const G4double s, const G4double m1, const G4double m2) {
152 const G4double m1sq = m1*m1; 118 const G4double m1sq = m1*m1;
153 const G4double m2sq = m2*m2; 119 const G4double m2sq = m2*m2;
154 G4double plab2 = (s*s-2*s*(m1sq+m2sq)+(m1s 120 G4double plab2 = (s*s-2*s*(m1sq+m2sq)+(m1sq-m2sq)*(m1sq-m2sq))/(4*m2sq);
155 if(plab2 < 0.0) { 121 if(plab2 < 0.0) {
156 INCL_ERROR("momentumInLab: plab2 == " << << 122 ERROR("KinematicsUtils::momentumInLab: plab2 == " << plab2 << " < 0.0; m1sq == " << m1sq << "; m2sq == " << m2sq << "; s == " << s << std::endl);
157 plab2 = 0.0; 123 plab2 = 0.0;
158 } 124 }
159 return std::sqrt(plab2); 125 return std::sqrt(plab2);
160 } 126 }
161 127
162 G4double momentumInLab(Particle const * cons << 128 G4double KinematicsUtils::momentumInLab(Particle const * const p1, Particle const * const p2) {
163 const G4double m1 = p1->getMass(); 129 const G4double m1 = p1->getMass();
164 const G4double m2 = p2->getMass(); 130 const G4double m2 = p2->getMass();
165 const G4double s = squareTotalEnergyInCM(p 131 const G4double s = squareTotalEnergyInCM(p1, p2);
166 return momentumInLab(s, m1, m2); << 132 return KinematicsUtils::momentumInLab(s, m1, m2);
167 } 133 }
168 134
169 G4double sumTotalEnergies(const ParticleList << 135 G4double KinematicsUtils::sumTotalEnergies(const ParticleList &pl) {
170 G4double E = 0.0; 136 G4double E = 0.0;
171 for(ParticleIter i=pl.begin(), e=pl.end(); << 137 for(ParticleIter i = pl.begin(); i != pl.end(); ++i) {
172 E += (*i)->getEnergy(); 138 E += (*i)->getEnergy();
173 } 139 }
174 return E; 140 return E;
175 } 141 }
176 142
177 ThreeVector sumMomenta(const ParticleList &p << 143 ThreeVector KinematicsUtils::sumMomenta(const ParticleList &pl) {
178 ThreeVector p(0.0, 0.0, 0.0); 144 ThreeVector p(0.0, 0.0, 0.0);
179 for(ParticleIter i=pl.begin(), e=pl.end(); << 145 for(ParticleIter i = pl.begin(); i != pl.end(); ++i) {
180 p += (*i)->getMomentum(); 146 p += (*i)->getMomentum();
181 } 147 }
182 return p; 148 return p;
183 } 149 }
184 150
185 G4double energy(const ThreeVector &p, const << 151 G4double KinematicsUtils::energy(const ThreeVector &p, const G4double m) {
186 return std::sqrt(p.mag2() + m*m); 152 return std::sqrt(p.mag2() + m*m);
187 } 153 }
188 154
189 G4double invariantMass(const G4double E, con << 155 G4double KinematicsUtils::invariantMass(const G4double E, const ThreeVector & p) {
190 return std::sqrt(squareInvariantMass(E, p) << 156 return std::sqrt(E*E - p.mag2());
191 } 157 }
192 158
193 G4double squareInvariantMass(const G4double << 159 G4double KinematicsUtils::gammaFromKineticEnergy(const ParticleSpecies &p, const G4double EKin) {
194 return E*E - p.mag2(); <<
195 } <<
196 <<
197 G4double gammaFromKineticEnergy(const Partic <<
198 G4double mass; 160 G4double mass;
199 if(p.theType==Composite) 161 if(p.theType==Composite)
200 mass = ParticleTable::getTableMass(p.the << 162 mass = ParticleTable::getTableMass(p.theA, p.theZ);
201 else 163 else
202 mass = ParticleTable::getTableParticleMa 164 mass = ParticleTable::getTableParticleMass(p.theType);
203 return (1.+EKin/mass); 165 return (1.+EKin/mass);
204 } <<
205 <<
206 } 166 }
207 167
208 } 168 }
209 169