source: trunk/source/processes/hadronic/models/chiral_inv_phase_space/interface/src/G4QDiffraction.cc @ 836

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26// $Id: G4QDiffraction.cc,v 1.3 2007/10/02 10:00:37 mkossov Exp $
27// GEANT4 tag $Name:  $
28//
29//      ---------------- G4QDiffraction class -----------------
30//                 by Mikhail Kossov, Aug 2007.
31// G4QDiffraction class of the CHIPS Simulation Branch in GEANT4
32// ---------------------------------------------------------------
33// ****************************************************************************************
34// ********** This CLASS is temporary moved from the "chips/interface" directory *********
35// ****************************************************************************************
36
37//#define debug
38//#define pdebug
39//#define tdebug
40//#define nandebug
41//#define ppdebug
42
43#include "G4QDiffraction.hh"
44
45// Initialization of static vectors
46G4int    G4QDiffraction::nPartCWorld=152;  // #of particles initialized in CHIPS
47std::vector<G4int> G4QDiffraction::ElementZ; // Z of element(i) in theLastCalc
48std::vector<G4double> G4QDiffraction::ElProbInMat; // SumProbOfElem in Material
49std::vector<std::vector<G4int>*> G4QDiffraction::ElIsoN;// N of isotope(j), E(i)
50std::vector<std::vector<G4double>*>G4QDiffraction::IsoProbInEl;//SumProbIsotE(i)
51
52// Constructor
53G4QDiffraction::G4QDiffraction(const G4String& processName):G4VDiscreteProcess(processName)
54{
55#ifdef debug
56  G4cout<<"G4QDiffraction::Constructor is called processName="<<processName<<G4endl;
57#endif
58  if (verboseLevel>0) G4cout << GetProcessName() << " process is created "<< G4endl;
59
60  G4QCHIPSWorld::Get()->GetParticles(nPartCWorld); // Create CHIPS World (234 part. max)
61}
62
63// Destructor
64G4QDiffraction::~G4QDiffraction() {}
65
66
67G4LorentzVector G4QDiffraction::GetEnegryMomentumConservation(){return EnMomConservation;}
68
69G4int G4QDiffraction::GetNumberOfNeutronsInTarget() {return nOfNeutrons;}
70
71// output of the function must be in units of length! L=1/sig_V,sig_V=SUM(n(j,i)*sig(j,i)),
72// where n(i,j) is a number of nuclei of the isotop j of the element i in V=1(lengtUnit^3)
73// ********** All CHIPS cross sections are calculated in the surface units ************
74G4double G4QDiffraction::GetMeanFreePath(const G4Track&Track,G4double Q,G4ForceCondition*F)
75{
76  *F = NotForced;
77  const G4DynamicParticle* incidentParticle = Track.GetDynamicParticle();
78  G4ParticleDefinition* incidentParticleDefinition=incidentParticle->GetDefinition();
79  if( !IsApplicable(*incidentParticleDefinition))
80    G4cout<<"-Warning-G4QDiffraction::GetMeanFreePath for notImplemented Particle"<<G4endl;
81  // Calculate the mean Cross Section for the set of Elements(*Isotopes) in the Material
82  G4double Momentum = incidentParticle->GetTotalMomentum(); // 3-momentum of the Particle
83#ifdef debug
84  G4double KinEn = incidentParticle->GetKineticEnergy();
85  G4cout<<"G4QDiffraction::GetMeanFreePath:Prpj, kinE="<<KinEn<<", Mom="<<Momentum<<G4endl;
86#endif
87  const G4Material* material = Track.GetMaterial();        // Get the current material
88  const G4double* NOfNucPerVolume = material->GetVecNbOfAtomsPerVolume();
89  const G4ElementVector* theElementVector = material->GetElementVector();
90  G4int nE=material->GetNumberOfElements();
91#ifdef debug
92  G4cout<<"G4QDiffraction::GetMeanFreePath:"<<nE<<" Elems in Material="<<*material<<G4endl;
93#endif
94  G4int pPDG=0;
95  // @@ At present it is made only for n & p, but can be extended if inXS are available
96  if     (incidentParticleDefinition == G4Proton::Proton()  ) pPDG=2212;
97  else if(incidentParticleDefinition == G4Neutron::Neutron()) pPDG=2112;
98  else G4cout<<"G4QDiffraction::GetMeanFreePath: only nA & pA are implemented"<<G4endl;
99 
100  G4QIsotope* Isotopes = G4QIsotope::Get(); // Pointer to the G4QIsotopes singleton
101  G4double sigma=0.;                        // Sums over elements for the material
102  G4int IPIE=IsoProbInEl.size();            // How many old elements?
103  if(IPIE) for(G4int ip=0; ip<IPIE; ++ip)   // Clean up the SumProb's of Isotopes (SPI)
104  {
105    std::vector<G4double>* SPI=IsoProbInEl[ip]; // Pointer to the SPI vector
106    SPI->clear();
107    delete SPI;
108    std::vector<G4int>* IsN=ElIsoN[ip];     // Pointer to the N vector
109    IsN->clear();
110    delete IsN;
111  }
112  ElProbInMat.clear();                      // Clean up the SumProb's of Elements (SPE)
113  ElementZ.clear();                         // Clear the body vector for Z of Elements
114  IsoProbInEl.clear();                      // Clear the body vector for SPI
115  ElIsoN.clear();                           // Clear the body vector for N of Isotopes
116  for(G4int i=0; i<nE; ++i)
117  {
118    G4Element* pElement=(*theElementVector)[i]; // Pointer to the current element
119    G4int Z = static_cast<G4int>(pElement->GetZ()); // Z of the Element
120    ElementZ.push_back(Z);                  // Remember Z of the Element
121    G4int isoSize=0;                        // The default for the isoVectorLength is 0
122    G4int indEl=0;                          // Index of non-natural element or 0(default)
123    G4IsotopeVector* isoVector=pElement->GetIsotopeVector(); // Get the predefined IsoVect
124    if(isoVector) isoSize=isoVector->size();// Get size of the existing isotopeVector
125#ifdef debug
126    G4cout<<"G4QDiffraction::GetMeanFreePath: isovector Length="<<isoSize<<G4endl;
127#endif
128    if(isoSize)                             // The Element has non-trivial abundance set
129    {
130      indEl=pElement->GetIndex()+1;         // Index of the non-trivial element is an order
131#ifdef debug
132      G4cout<<"G4QDiffr::GetMFP:iE="<<indEl<<",def="<<Isotopes->IsDefined(Z,indEl)<<G4endl;
133#endif
134      if(!Isotopes->IsDefined(Z,indEl))     // This index is not defined for this Z: define
135      {
136        std::vector<std::pair<G4int,G4double>*>* newAbund =
137                                               new std::vector<std::pair<G4int,G4double>*>;
138        G4double* abuVector=pElement->GetRelativeAbundanceVector();
139        for(G4int j=0; j<isoSize; j++)      // Calculation of abundance vector for isotopes
140        {
141          G4int N=pElement->GetIsotope(j)->GetN()-Z; // N means A=N+Z !
142          if(pElement->GetIsotope(j)->GetZ()!=Z)G4cerr<<"G4QDiffract::GetMeanFreePath: Z="
143                                         <<pElement->GetIsotope(j)->GetZ()<<"#"<<Z<<G4endl;
144          G4double abund=abuVector[j];
145                                                                  std::pair<G4int,G4double>* pr= new std::pair<G4int,G4double>(N,abund);
146#ifdef debug
147          G4cout<<"G4QDiffract::GetMeanFreePath:pair#"<<j<<",N="<<N<<",ab="<<abund<<G4endl;
148#endif
149          newAbund->push_back(pr);
150                                                  }
151#ifdef debug
152        G4cout<<"G4QDiffract::GetMeanFreePath:pairVectorLength="<<newAbund->size()<<G4endl;
153#endif
154        indEl=G4QIsotope::Get()->InitElement(Z,indEl,newAbund); // definition of the newInd
155        for(G4int k=0; k<isoSize; k++) delete (*newAbund)[k];   // Cleaning temporary
156        delete newAbund; // Was "new" in the beginning of the name space
157      }
158    }
159    std::vector<std::pair<G4int,G4double>*>* cs= Isotopes->GetCSVector(Z,indEl);//CSPointer
160    std::vector<G4double>* SPI = new std::vector<G4double>; // Pointer to the SPI vector
161    IsoProbInEl.push_back(SPI);
162    std::vector<G4int>* IsN = new std::vector<G4int>; // Pointer to the N vector
163    ElIsoN.push_back(IsN);
164    G4int nIs=cs->size();                   // A#Of Isotopes in the Element
165#ifdef debug
166    G4cout<<"G4QDiffract::GetMFP:=***=>,#isot="<<nIs<<", Z="<<Z<<", indEl="<<indEl<<G4endl;
167#endif
168    G4double susi=0.;                       // sum of CS over isotopes
169    if(nIs) for(G4int j=0; j<nIs; j++)      // Calculate CS for eachIsotope of El
170    {
171      std::pair<G4int,G4double>* curIs=(*cs)[j]; // A pointer, which is used twice
172      G4int N=curIs->first;                 // #of Neuterons in the isotope j of El i
173      IsN->push_back(N);                    // Remember Min N for the Element
174#ifdef debug
175      G4cout<<"G4QDiff::GMFP:true,P="<<Momentum<<",Z="<<Z<<",N="<<N<<",PDG="<<pPDG<<G4endl;
176#endif
177                    G4bool ccsf=true;
178      if(Q==-27.) ccsf=false;
179#ifdef debug
180      G4cout<<"G4QDiffraction::GMFP: GetCS #1 j="<<j<<G4endl;
181#endif
182      G4double CSI=CalculateXS(Momentum, Z, N, pPDG); // XS(j,i) for theIsotope
183
184#ifdef debug
185      G4cout<<"G4QDiffraction::GetMeanFreePath: jI="<<j<<", Zt="<<Z<<", Nt="<<N<<", Mom="
186            <<Momentu<<", XSec="<<CSI/millibarn<<G4endl;
187#endif
188      curIs->second = CSI;
189      susi+=CSI;                            // Make a sum per isotopes
190      SPI->push_back(susi);                 // Remember summed cross-section
191    } // End of temporary initialization of the cross sections in the G4QIsotope singeltone
192    sigma+=Isotopes->GetMeanCrossSection(Z,indEl)*NOfNucPerVolume[i];//SUM(MeanCS*NOfNperV)
193#ifdef debug
194    G4cout<<"G4QDiffraction::GetMeanFreePath:<XS>="<<Isotopes->GetMeanCrossSection(Z,indEl)
195          <<",AddSigm="<<Isotopes->GetMeanCrossSection(Z,indEl)*NOfNucPerVolume[i]<<G4endl;
196#endif
197    ElProbInMat.push_back(sigma);
198  } // End of LOOP over Elements
199  // Check that cross section is not zero and return the mean free path
200#ifdef debug
201  G4cout<<"G4QDiffraction::GetMeanFreePath: MeanFreePath="<<1./sigma<<G4endl;
202#endif
203  if(sigma > 0.) return 1./sigma;                 // Mean path [distance]
204  return DBL_MAX;
205}
206
207G4bool G4QDiffraction::IsApplicable(const G4ParticleDefinition& particle) 
208{
209  if      (particle == *(        G4Proton::Proton()        )) return true;
210  else if (particle == *(       G4Neutron::Neutron()       )) return true;
211  //else if (particle == *(     G4MuonMinus::MuonMinus()     )) return true;
212  //else if (particle == *(       G4TauPlus::TauPlus()       )) return true;
213  //else if (particle == *(      G4TauMinus::TauMinus()      )) return true;
214  //else if (particle == *(      G4Electron::Electron()      )) return true;
215  //else if (particle == *(      G4Positron::Positron()      )) return true;
216  //else if (particle == *(         G4Gamma::Gamma()         )) return true;
217  //else if (particle == *(      G4MuonPlus::MuonPlus()      )) return true;
218  //else if (particle == *(G4AntiNeutrinoMu::AntiNeutrinoMu())) return true;
219  //else if (particle == *(    G4NeutrinoMu::NeutrinoMu()    )) return true;
220  //else if (particle == *(     G4PionMinus::PionMinus()     )) return true;
221  //else if (particle == *(      G4PionPlus::PionPlus()      )) return true;
222  //else if (particle == *(      G4KaonPlus::KaonPlus()      )) return true;
223  //else if (particle == *(     G4KaonMinus::KaonMinus()     )) return true;
224  //else if (particle == *(  G4KaonZeroLong::KaonZeroLong()  )) return true;
225  //else if (particle == *( G4KaonZeroShort::KaonZeroShort() )) return true;
226  //else if (particle == *(        G4Lambda::Lambda()        )) return true;
227  //else if (particle == *(     G4SigmaPlus::SigmaPlus()     )) return true;
228  //else if (particle == *(    G4SigmaMinus::SigmaMinus()    )) return true;
229  //else if (particle == *(     G4SigmaZero::SigmaZero()     )) return true;
230  //else if (particle == *(       G4XiMinus::XiMinus()       )) return true;
231  //else if (particle == *(        G4XiZero::XiZero()        )) return true;
232  //else if (particle == *(    G4OmegaMinus::OmegaMinus()    )) return true;
233  //else if (particle == *(   G4AntiNeutron::AntiNeutron()   )) return true;
234  //else if (particle == *(    G4AntiProton::AntiProton()    )) return true;
235#ifdef debug
236  G4cout<<"***>>G4QDiffraction::IsApplicable: projPDG="<<particle.GetPDGEncoding()<<G4endl;
237#endif
238  return false;
239}
240
241G4VParticleChange* G4QDiffraction::PostStepDoIt(const G4Track& track, const G4Step& step)
242{
243  static const G4double mProt= G4QPDGCode(2212).GetMass();     // CHIPS proton Mass in MeV
244  static const G4double mNeut= G4QPDGCode(2112).GetMass();     // CHIPS neutron Mass in MeV
245  static const G4double mPion= G4QPDGCode(111).GetMass();      // CHIPS Pi0 Mass in MeV
246  static G4QDiffractionRatio* diffRatio;
247  //
248  //-------------------------------------------------------------------------------------
249  static G4bool CWinit = true;                       // CHIPS Warld needs to be initted
250  if(CWinit)
251                {
252    CWinit=false;
253    G4QCHIPSWorld::Get()->GetParticles(nPartCWorld); // Create CHIPS World (234 part.max)
254    diffRatio=G4QDiffractionRatio::GetPointer();
255  }
256  //-------------------------------------------------------------------------------------
257  const G4DynamicParticle* projHadron = track.GetDynamicParticle();
258  const G4ParticleDefinition* particle=projHadron->GetDefinition();
259#ifdef debug
260  G4cout<<"G4QDiffraction::PostStepDoIt: Before the GetMeanFreePath is called In4M="
261        <<projHadron->Get4Momentum()<<" of PDG="<<particle->GetPDGEncoding()<<", Type="
262        <<particle->GetParticleType()<<",SubType="<<particle->GetParticleSubType()<<G4endl;
263#endif
264  G4ForceCondition cond=NotForced;
265  GetMeanFreePath(track, -27., &cond);                  // @@ ?? jus to update parameters?
266#ifdef debug
267  G4cout<<"G4QDiffraction::PostStepDoIt: After GetMeanFreePath is called"<<G4endl;
268#endif
269  G4LorentzVector proj4M=(projHadron->Get4Momentum())/MeV; // Convert to MeV!
270  G4double momentum = projHadron->GetTotalMomentum()/MeV; // 3-momentum of the Proj in MeV
271  G4double Momentum = proj4M.rho();                   // @@ Just for the test purposes
272  if(std::fabs(Momentum-momentum)>.000001)
273    G4cerr<<"-Warning-G4QDiffraction::PostStepDoIt:P_IU="<<Momentum<<"#"<<momentum<<G4endl;
274#ifdef pdebug
275  G4cout<<"G4QDiffraction::PostStepDoIt: pP(IU)="<<Momentum<<"="<<momentum
276        <<",proj4M="<<proj4M<<", projM="<<proj4M.m()<<G4endl;
277#endif
278  if (!IsApplicable(*particle))  // Check applicability
279  {
280    G4cerr<<"G4QDiffraction::PostStepDoIt: Only NA is implemented."<<G4endl;
281    return 0;
282  }
283  const G4Material* material = track.GetMaterial();      // Get the current material
284  G4int Z=0;
285  const G4ElementVector* theElementVector = material->GetElementVector();
286  G4int nE=material->GetNumberOfElements();
287#ifdef debug
288  G4cout<<"G4QDiffraction::PostStepDoIt: "<<nE<<" elements in the material."<<G4endl;
289#endif
290  G4int projPDG=0;                           // PDG Code prototype for the captured hadron
291  // Not all these particles are implemented yet (see Is Applicable)
292  if      (particle ==          G4Proton::Proton()         ) projPDG= 2212;
293  else if (particle ==         G4Neutron::Neutron()        ) projPDG= 2112;
294  //else if (particle ==       G4PionMinus::PionMinus()      ) projPDG= -211;
295  //else if (particle ==        G4PionPlus::PionPlus()       ) projPDG=  211;
296  //else if (particle ==        G4KaonPlus::KaonPlus()       ) projPDG=  321;
297  //else if (particle ==       G4KaonMinus::KaonMinus()      ) projPDG= -321;
298  //else if (particle ==    G4KaonZeroLong::KaonZeroLong()   ) projPDG=  130;
299  //else if (particle ==   G4KaonZeroShort::KaonZeroShort()  ) projPDG=  310;
300  //else if (particle ==        G4MuonPlus::MuonPlus()       ) projPDG=  -13;
301  //else if (particle ==       G4MuonMinus::MuonMinus()      ) projPDG=   13;
302  //else if (particle ==      G4NeutrinoMu::NeutrinoMu()     ) projPDG=   14;
303  //else if (particle ==  G4AntiNeutrinoMu::AntiNeutrinoMu() ) projPDG=  -14;
304  //else if (particle ==        G4Electron::Electron()       ) projPDG=   11;
305  //else if (particle ==        G4Positron::Positron()       ) projPDG=  -11;
306  //else if (particle ==       G4NeutrinoE::NeutrinoE()      ) projPDG=   12;
307  //else if (particle ==   G4AntiNeutrinoE::AntiNeutrinoE()  ) projPDG=  -12;
308  //else if (particle ==           G4Gamma::Gamma()          ) projPDG=   22;
309  //else if (particle ==         G4TauPlus::TauPlus()        ) projPDG=  -15;
310  //else if (particle ==        G4TauMinus::TauMinus()       ) projPDG=   15;
311  //else if (particle ==     G4NeutrinoTau::NeutrinoTau()    ) projPDG=   16;
312  //else if (particle == G4AntiNeutrinoTau::AntiNeutrinoTau()) projPDG=  -16;
313  //else if (particle ==          G4Lambda::Lambda()         ) projPDG= 3122;
314  //else if (particle ==       G4SigmaPlus::SigmaPlus()      ) projPDG= 3222;
315  //else if (particle ==      G4SigmaMinus::SigmaMinus()     ) projPDG= 3112;
316  //else if (particle ==       G4SigmaZero::SigmaZero()      ) projPDG= 3212;
317  //else if (particle ==         G4XiMinus::XiMinus()        ) projPDG= 3312;
318  //else if (particle ==          G4XiZero::XiZero()         ) projPDG= 3322;
319  //else if (particle ==      G4OmegaMinus::OmegaMinus()     ) projPDG= 3334;
320  //else if (particle ==     G4AntiNeutron::AntiNeutron()    ) projPDG=-2112;
321  //else if (particle ==      G4AntiProton::AntiProton()     ) projPDG=-2212;
322#ifdef debug
323  G4int prPDG=particle->GetPDGEncoding();
324                G4cout<<"G4QDiffraction::PostStepDoIt: projPDG="<<projPDG<<", stPDG="<<prPDG<<G4endl;
325#endif
326  if(!projPDG)
327  {
328    G4cerr<<"-Warning-G4QDiffraction::PostStepDoIt:UndefProjHadron(PDG=0) ->ret 0"<<G4endl;
329    return 0;
330  }
331  //G4double pM2=proj4M.m2();        // in MeV^2
332  //G4double pM=std::sqrt(pM2);      // in MeV
333  G4double pM=mNeut;
334  G4int    fPDG=2112;
335  if(projPDG==2112)
336  {
337    pM=mProt;
338    fPDG=2212;
339  }
340                // Element treatment
341  G4int EPIM=ElProbInMat.size();
342#ifdef debug
343                G4cout<<"G4QDiffra::PostStDoIt: m="<<EPIM<<",n="<<nE<<",T="<<ElProbInMat[EPIM-1]<<G4endl;
344#endif
345  G4int i=0;
346  if(EPIM>1)
347  {
348    G4double rnd = ElProbInMat[EPIM-1]*G4UniformRand();
349    for(i=0; i<nE; ++i)
350                  {
351#ifdef debug
352                                  G4cout<<"G4QDiffra::PostStepDoIt: EPM["<<i<<"]="<<ElProbInMat[i]<<",r="<<rnd<<G4endl;
353#endif
354      if (rnd<ElProbInMat[i]) break;
355    }
356    if(i>=nE) i=nE-1;                        // Top limit for the Element
357  }
358  G4Element* pElement=(*theElementVector)[i];
359  Z=static_cast<G4int>(pElement->GetZ());
360#ifdef debug
361                                G4cout<<"G4QDiffraction::PostStepDoIt: i="<<i<<", Z(element)="<<Z<<G4endl;
362#endif
363  if(Z<=0)
364  {
365    G4cerr<<"-Warning-G4QDiffraction::PostStepDoIt: Element with Z="<<Z<<G4endl;
366    if(Z<0) return 0;
367  }
368  std::vector<G4double>* SPI = IsoProbInEl[i];// Vector of summedProbabilities for isotopes
369  std::vector<G4int>* IsN = ElIsoN[i];     // Vector of "#of neutrons" in the isotope El[i]
370  G4int nofIsot=SPI->size();               // #of isotopes in the element i
371#ifdef debug
372                G4cout<<"G4QDiffraction::PostStepDoIt: nI="<<nofIsot<<", T="<<(*SPI)[nofIsot-1]<<G4endl;
373#endif
374  G4int j=0;
375  if(nofIsot>1)
376  {
377    G4double rndI=(*SPI)[nofIsot-1]*G4UniformRand(); // Randomize the isotop of the Element
378    for(j=0; j<nofIsot; ++j)
379    {
380#ifdef debug
381                                  G4cout<<"G4QDiffraction::PostStepDoIt: SP["<<j<<"]="<<(*SPI)[j]<<",r="<<rndI<<G4endl;
382#endif
383      if(rndI < (*SPI)[j]) break;
384    }
385    if(j>=nofIsot) j=nofIsot-1;            // Top limit for the isotope
386  }
387  G4int N =(*IsN)[j]; ;                    // Randomized number of neutrons
388#ifdef debug
389                G4cout<<"G4QDiffraction::PostStepDoIt: j="<<i<<", N(isotope)="<<N<<", MeV="<<MeV<<G4endl;
390#endif
391  if(N<0)
392  {
393    G4cerr<<"-Warning-G4QDiffraction::PostStepDoIt: Isotope Z="<<Z<<" has 0>N="<<N<<G4endl;
394    return 0;
395  }
396  nOfNeutrons=N;                           // Remember it for the energy-momentum check
397#ifdef debug
398  G4cout<<"G4QDiffraction::PostStepDoIt: N="<<N<<" for element with Z="<<Z<<G4endl;
399#endif
400  if(N<0)
401  {
402    G4cerr<<"*Warning*G4QDiffraction::PostStepDoIt:Element with N="<<N<< G4endl;
403    return 0;
404  }
405  aParticleChange.Initialize(track);
406#ifdef debug
407  G4cout<<"G4QDiffraction::PostStepDoIt: track is initialized"<<G4endl;
408#endif
409  G4double      weight    = track.GetWeight();
410  G4double      localtime = track.GetGlobalTime();
411  G4ThreeVector position  = track.GetPosition();
412#ifdef debug
413  G4cout<<"G4QDiffraction::PostStepDoIt: before Touchable extraction"<<G4endl;
414#endif
415  G4TouchableHandle trTouchable = track.GetTouchableHandle();
416#ifdef debug
417  G4cout<<"G4QDiffraction::PostStepDoIt: Touchable is extracted"<<G4endl;
418#endif
419  G4int targPDG=90000000+Z*1000+N;         // CHIPS PDG Code of the target nucleus
420  G4QPDGCode targQPDG(targPDG);            // @@ use G4Ion and get rid of CHIPS World
421  G4double tM=targQPDG.GetMass();          // CHIPS final nucleus mass in MeV
422  G4double kinEnergy= projHadron->GetKineticEnergy()*MeV; // Kin energy in MeV (Is *MeV n?)
423  G4ParticleMomentum dir = projHadron->GetMomentumDirection();// It is a unit three-vector
424  G4LorentzVector tot4M=proj4M+G4LorentzVector(0.,0.,0.,tM); // Total 4-mom of the reaction
425#ifdef debug
426  G4cout<<"G4QDiffraction::PostStepDoIt: tM="<<tM<<",p4M="<<proj4M<<",t4M="<<tot4M<<G4endl;
427#endif
428  EnMomConservation=tot4M;                 // Total 4-mom of reaction for E/M conservation
429  // @@ Probably this is not necessary any more
430#ifdef debug
431  G4cout<<"G4QDiff::PSDI:false,P="<<Momentum<<",Z="<<Z<<",N="<<N<<",PDG="<<projPDG<<G4endl;
432#endif
433  G4double xSec=CalculateXS(Momentum, Z, N, projPDG); // Recalculate CrossSection
434#ifdef debug
435  G4cout<<"G4QDiffra::PSDI:PDG="<<projPDG<<",P="<<Momentum<<",XS="<<xSec/millibarn<<G4endl;
436#endif
437#ifdef nandebug
438  if(xSec>0. || xSec<0. || xSec==0);
439  else  G4cout<<"-Warning-G4QDiffraction::PostSDI: *NAN* xSec="<<xSec/millibarn<<G4endl;
440#endif
441  // @@ check a possibility to separate p, n, or alpha (!)
442  if(xSec <= 0.) // The cross-section iz 0 -> Do Nothing
443  {
444#ifdef pdebug
445    G4cerr<<"*Warning*G4QDiffraction::PSDoIt:*Zero cross-section* PDG="<<projPDG
446          <<",tPDG="<<targPDG<<",P="<<Momentum<<G4endl;
447#endif
448    //Do Nothing Action insead of the reaction
449    aParticleChange.ProposeEnergy(kinEnergy);
450    aParticleChange.ProposeLocalEnergyDeposit(0.);
451    aParticleChange.ProposeMomentumDirection(dir) ;
452    return G4VDiscreteProcess::PostStepDoIt(track,step);
453  }
454  G4double totCMMass=tot4M.m(); // Total CM mass, pM=projectileMass, tM=targetMass
455  if(totCMMass < mPion+pM+tM) // The diffraction reaction is impossible -> Do Nothing
456  {
457#ifdef pdebug
458    G4cerr<<"*Warning*G4QDiffraction::PSDoIt:*Below Diffraction Threshold* cmM="<<totCMMass
459          <<">pM="<<pM<<"+tM="<<tM<<"+pi0="<<mPion<<"=="<<pM+tM+mPion<<G4endl;
460#endif
461    //Do Nothing Action insead of the reaction
462    aParticleChange.ProposeEnergy(kinEnergy);
463    aParticleChange.ProposeLocalEnergyDeposit(0.);
464    aParticleChange.ProposeMomentumDirection(dir) ;
465    return G4VDiscreteProcess::PostStepDoIt(track,step);
466  }
467  // Kill interacting hadron
468  aParticleChange.ProposeTrackStatus(fStopAndKill);
469  G4QHadronVector* out=diffRatio->TargFragment(projPDG, proj4M, Z, N);
470  G4int nSec=out->size();             // #of secondaries in the diffraction reaction
471                G4DynamicParticle* theSec=0;        // A prototype for secondary for the secondary
472  G4LorentzVector dif4M(0.,0.,0.,0.); // Prototype for the secondary 4-momentum
473  G4int difPDG=0;                     // PDG code of the secondary
474  G4QHadron* difQH=0;                 // Prototype for a Q-secondary
475#ifdef pdebug
476                G4cout<<"G4QDiffraction::PostStepDoIt: =====found===== nSecondaries="<<nSec<<G4endl;
477#endif
478  for(G4int i=0; i<nSec; i++)
479  {
480    difQH = (*out)[i];
481    difPDG= difQH->GetPDGCode();
482    G4ParticleDefinition*  theDefinition=0;
483    if     (difPDG==2212 || difPDG==90001000) theDefinition=G4Proton::Proton();
484    else if(difPDG==2112 || difPDG==90000001) theDefinition=G4Neutron::Neutron();
485    else if(difPDG==  22) theDefinition=G4Gamma::Gamma();
486    else if(difPDG== 111) theDefinition=G4PionZero::PionZero();
487    else if(difPDG==-211 || difPDG==89999001) theDefinition=G4PionMinus::PionMinus();
488    else if(difPDG== 211 || difPDG==90000999) theDefinition=G4PionPlus::PionPlus();
489    else if(difPDG== 321 || difPDG==89001000) theDefinition=G4KaonPlus::KaonPlus();
490    else if(difPDG==-321 || difPDG==90999000) theDefinition=G4KaonMinus::KaonMinus();
491    else if(difPDG== 130 || difPDG==-311 || difPDG==89000001)
492                                              theDefinition=G4KaonZeroLong::KaonZeroLong();
493    else if(difPDG== 310 || difPDG== 311 || difPDG==90999999)
494                                            theDefinition=G4KaonZeroShort::KaonZeroShort();
495    else if(difPDG==3122 || difPDG==91000000) theDefinition=G4Lambda::Lambda();
496    else if(difPDG== 3222) theDefinition=G4SigmaPlus::SigmaPlus();
497    else if(difPDG== 3112) theDefinition=G4SigmaMinus::SigmaMinus();
498    else if(difPDG== 3212) theDefinition=G4SigmaZero::SigmaZero();
499    else if(difPDG== 3312) theDefinition=G4XiMinus::XiMinus();
500    else if(difPDG== 3322) theDefinition=G4XiZero::XiZero();
501    else if(difPDG== 3334) theDefinition=G4OmegaMinus::OmegaMinus();
502    else if(difPDG==-2112) theDefinition=G4AntiNeutron::AntiNeutron();
503    else if(difPDG==-2212) theDefinition=G4AntiProton::AntiProton();
504    else if(difPDG==-3122) theDefinition=G4AntiLambda::AntiLambda();
505    else if(difPDG==-3222) theDefinition=G4AntiSigmaPlus::AntiSigmaPlus();
506    else if(difPDG==-3112) theDefinition=G4AntiSigmaMinus::AntiSigmaMinus();
507    else if(difPDG==-3212) theDefinition=G4AntiSigmaZero::AntiSigmaZero();
508    else if(difPDG==-3312) theDefinition=G4AntiXiMinus::AntiXiMinus();
509    else if(difPDG==-3322) theDefinition=G4AntiXiZero::AntiXiZero();
510    else if(difPDG==-3334) theDefinition=G4AntiOmegaMinus::AntiOmegaMinus();
511    else if(difPDG==  -11) theDefinition=G4Electron::Electron();
512    else if(difPDG==  -13) theDefinition=G4MuonMinus::MuonMinus();
513    else if(difPDG==   11) theDefinition=G4Positron::Positron();
514    else if(difPDG==   13) theDefinition=G4MuonPlus::MuonPlus();
515    else
516    {
517      G4int Z = difQH->GetCharge();
518      G4int B = difQH->GetBaryonNumber();
519      G4int S = difQH->GetStrangeness();
520      if(S||Z>B||Z<0)G4cout<<"-Warning-G4QDif::PoStDoIt:Z="<<Z<<",A="<<B<<",S="<<S<<G4endl;
521      theDefinition = G4ParticleTable::GetParticleTable()->FindIon(Z,B,0,0);
522#ifdef pdebug
523                    G4cout<<"G4QDiffraction::PoStDoIt:Ion,Z="<<Z<<",A="<<B<<",D="<<theDefinition<<G4endl;
524#endif
525    }
526    if(theDefinition)
527    {
528                theSec = new G4DynamicParticle;       // A secondary for the recoil hadron
529      theSec->SetDefinition(theDefinition);
530      dif4M  = difQH->Get4Momentum();
531      EnMomConservation-=dif4M;
532      theSec->Set4Momentum(dif4M);
533      G4Track* aNewTrack = new G4Track(theSec, localtime, position );
534      aNewTrack->SetWeight(weight);                                   //    weighted
535      aNewTrack->SetTouchableHandle(trTouchable);
536      aParticleChange.AddSecondary( aNewTrack );
537#ifdef pdebug
538                    G4cout<<"G4QDiffraction::PostStepDoIt: Filled 4M="<<dif4M<<", PDG="<<difPDG<<G4endl;
539#endif
540    }
541    else G4cout<<"-Warning-G4QDif::PSDI: Lost PDG="<<difPDG<<", Z="<<difQH->GetCharge()
542               <<", A="<<difQH->GetBaryonNumber()<<",S ="<<difQH->GetStrangeness()<<G4endl;
543    delete difQH; // Clean up the output QHadrons
544  }
545  delete out;     // Delete the output QHadron-vector
546#ifdef debug
547  G4cout<<"G4QDiffraction::PostStepDoIt:*** PostStepDoIt is done ***"<<G4endl;
548#endif
549  return G4VDiscreteProcess::PostStepDoIt(track, step);
550}
551
552G4double G4QDiffraction::CalculateXS(G4double p, G4int Z, G4int N, G4int PDG) 
553{
554  static G4bool first=true;
555  static G4VQCrossSection* CSmanager;
556  static G4QDiffractionRatio* diffRatio;
557  if(first)                              // Connection with a singletone
558  {
559    CSmanager=G4QProtonNuclearCrossSection::GetPointer();
560    diffRatio=G4QDiffractionRatio::GetPointer();
561    first=false;
562  }
563  //G4double x=CSmanager->GetCrossSection(true, p, Z, N, PDG); // inelastic XS
564  //G4double pIU=p*GeV;                                        // IndependentUnistMomentum
565  //G4double r=diffRatio->GetRatio(pIU, PDG, Z, N);            // Proj. Diffraction Part
566  //G4double s=x*r;                                            // XS for proj. diffraction
567  G4double s=diffRatio->GetTargSingDiffXS(p, PDG, Z, N);     // XS for target diffraction
568#ifdef debug
569                G4cout<<"G4QDiff::CXS:p="<<p<<",Z="<<Z<<",N="<<N<<",C="<<PDG<<",XS="<<s<<G4endl;
570#endif
571  return s;
572}
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