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25 //
26 // INCL++ intra-nuclear cascade model
27 // Alain Boudard, CEA-Saclay, France
28 // Joseph Cugnon, University of Liege, Belgium
29 // Jean-Christophe David, CEA-Saclay, France
30 // Pekka Kaitaniemi, CEA-Saclay, France, and Helsinki Institute of Physics, Finland
31 // Sylvie Leray, CEA-Saclay, France
32 // Davide Mancusi, CEA-Saclay, France
33 //
34 #define INCLXX_IN_GEANT4_MODE 1
35
36 #include "globals.hh"
37
38 /** \file G4INCLEventInfo.cc
39 * \brief Simple container for output of event results.
40 *
41 * Contains the results of an INCL cascade.
42 *
43 * \date 21 January 2011
44 * \author Davide Mancusi
45 */
46
47 #include "G4INCLEventInfo.hh"
48 #include "G4INCLGlobals.hh"
49 #include "G4INCLParticleTable.hh"
50 #include "G4INCLParticle.hh"
51 #include <cmath>
52
53 namespace G4INCL {
54
55 G4ThreadLocal Int_t EventInfo::eventNumber = 0;
56
57 void EventInfo::fillInverseKinematics(const Double_t gamma) {
58 const Double_t beta = std::sqrt(1.-1./(gamma*gamma));
59 for(Int_t i=0; i<nParticles; ++i) {
60 // determine the particle mass from the kinetic energy and the momentum;
61 // this ensures consistency with the masses uses by the models
62 Double_t mass;
63 if(EKin[i]>0.) {
64 mass = std::max(
65 0.5 * (px[i]*px[i]+py[i]*py[i]+pz[i]*pz[i]-EKin[i]*EKin[i]) / EKin[i],
66 0.0);
67 } else {
68 INCL_WARN("Particle with null kinetic energy in fillInverseKinematics, cannot determine its mass:\n"
69 << " A=" << A[i] << ", Z=" << Z[i] << ", S=" << S[i] << '\n'
70 << " EKin=" << EKin[i] << ", px=" << px[i] << ", py=" << py[i] << ", pz=" << pz[i] << '\n'
71 << " Falling back to the mass from the INCL ParticleTable" << '\n');
72 mass = ParticleTable::getRealMass(A[i], Z[i], S[i]);
73 }
74
75 const Double_t ETot = EKin[i] + mass;
76 const Double_t ETotPrime = gamma*(ETot - beta*pz[i]);
77 EKinPrime[i] = ETotPrime - mass;
78 pzPrime[i] = -gamma*(pz[i] - beta*ETot);
79 const Double_t pPrime = std::sqrt(px[i]*px[i] + py[i]*py[i] + pzPrime[i]*pzPrime[i]);
80 const Double_t cosThetaPrime = (pPrime>0.) ? (pzPrime[i]/pPrime) : 1.;
81 if(cosThetaPrime>=1.)
82 thetaPrime[i] = 0.;
83 else if(cosThetaPrime<=-1.)
84 thetaPrime[i] = 180.;
85 else
86 thetaPrime[i] = Math::toDegrees(Math::arcCos(cosThetaPrime));
87 }
88 }
89
90 void EventInfo::remnantToParticle(const G4int remnantIndex) {
91
92 INCL_DEBUG("remnantToParticle function used\n");
93
94 A[nParticles] = ARem[remnantIndex];
95 Z[nParticles] = ZRem[remnantIndex];
96 S[nParticles] = SRem[remnantIndex];
97 J[nParticles] = JRem[remnantIndex];
98
99
100 ParticleSpecies pt(A[nParticles],Z[nParticles],S[nParticles]);
101 PDGCode[nParticles] = pt.getPDGCode();
102
103 ParticleBias[nParticles] = Particle::getTotalBias();
104 emissionTime[nParticles] = stoppingTime;
105
106 px[nParticles] = pxRem[remnantIndex];
107 py[nParticles] = pyRem[remnantIndex];
108 pz[nParticles] = pzRem[remnantIndex];
109
110 const G4double plab = std::sqrt(pxRem[remnantIndex]*pxRem[remnantIndex]
111 +pyRem[remnantIndex]*pyRem[remnantIndex]
112 +pzRem[remnantIndex]*pzRem[remnantIndex]);
113 if(plab != 0.0){
114 G4double pznorm = pzRem[remnantIndex]/plab;
115 if(pznorm>1.) pznorm = 1.;
116 else if(pznorm<-1.) pznorm = -1.;
117 theta[nParticles] = Math::toDegrees(Math::arcCos(pznorm));
118 phi[nParticles] = Math::toDegrees(std::atan2(pyRem[remnantIndex],pxRem[remnantIndex]));
119 EKin[nParticles] = EKinRem[remnantIndex];
120 }
121 else{
122 theta[nParticles] = 0.0;
123 phi[nParticles] = 0.0;
124 EKin[nParticles] = 0.0;
125 }
126 origin[nParticles] = -1; // Origin: cascade
127 #ifdef INCLXX_IN_GEANT4_MODE
128 parentResonancePDGCode[nParticles] = 0; // No parent resonance
129 parentResonanceID[nParticles] = 0; // No parent resonance
130 #endif
131 history.push_back(""); // history
132 nParticles++;
133 // assert(history.size()==(unsigned int)nParticles);
134 }
135 }
136
137