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Geant4/processes/hadronic/models/parton_string/hadronization/src/G4QGSMFragmentation.cc

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Differences between /processes/hadronic/models/parton_string/hadronization/src/G4QGSMFragmentation.cc (Version 11.3.0) and /processes/hadronic/models/parton_string/hadronization/src/G4QGSMFragmentation.cc (Version 10.3)


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 26 //                                                 26 //
                                                   >>  27 // $Id: G4QGSMFragmentation.cc 100828 2016-11-02 15:25:59Z gcosmo $
 27 //                                                 28 //
 28 // -------------------------------------------     29 // -----------------------------------------------------------------------------
 29 //      GEANT 4 class implementation file          30 //      GEANT 4 class implementation file
 30 //                                                 31 //
 31 //      History: first implementation, Maxim K     32 //      History: first implementation, Maxim Komogorov, 10-Jul-1998
 32 // -------------------------------------------     33 // -----------------------------------------------------------------------------
 33 #include "G4QGSMFragmentation.hh"                  34 #include "G4QGSMFragmentation.hh"
 34 #include "G4PhysicalConstants.hh"                  35 #include "G4PhysicalConstants.hh"
 35 #include "G4SystemOfUnits.hh"                  << 
 36 #include "Randomize.hh"                            36 #include "Randomize.hh"
 37 #include "G4ios.hh"                                37 #include "G4ios.hh"
 38 #include "G4FragmentingString.hh"                  38 #include "G4FragmentingString.hh"
 39 #include "G4DiQuarks.hh"                           39 #include "G4DiQuarks.hh"
 40 #include "G4Quarks.hh"                             40 #include "G4Quarks.hh"
 41 #include "G4HadronicParameters.hh"             <<  41 
 42 #include "G4Pow.hh"                                42 #include "G4Pow.hh"
 43                                                    43 
 44 //#define debug_QGSMfragmentation                  44 //#define debug_QGSMfragmentation 
 45                                                    45 
 46 // Class G4QGSMFragmentation                       46 // Class G4QGSMFragmentation 
 47 //********************************************     47 //****************************************************************************************
 48                                                    48  
 49 G4QGSMFragmentation::G4QGSMFragmentation()     <<  49 G4QGSMFragmentation::G4QGSMFragmentation() :
                                                   >>  50 arho(0.5), aphi(0.), an(-0.5), ala(-0.75), aksi(-1.), alft(0.5)
 50 {                                                  51 {
 51     SigmaQT = 0.45 * GeV;                      <<  52   SetStrangenessSuppression(0.41);
 52                                                <<  53   SetDiquarkSuppression(0.25);
 53     MassCut = 0.35*GeV;                        <<  54   SetDiquarkBreakProbability(0.4);
 54                                                << 
 55     SetStrangenessSuppression((1.0 - 0.16)/2.) << 
 56                                                << 
 57     // Check if charmed and bottom hadrons are << 
 58     // set the non-zero probabilities for c-cb << 
 59     // else set them to 0.0. If these probabil << 
 60     // hadrons can't/can be created during the << 
 61     // (i.e. not heavy) projectile hadron nucl << 
 62     if ( G4HadronicParameters::Instance()->Ena << 
 63       SetProbCCbar(0.0002);  // According to O << 
 64       SetProbBBbar(5.0e-5);  // According to O << 
 65     } else {                                   << 
 66       SetProbCCbar(0.0);                       << 
 67       SetProbBBbar(0.0);                       << 
 68     }                                          << 
 69                                                << 
 70     SetDiquarkSuppression(0.32);               << 
 71     SetDiquarkBreakProbability(0.7);           << 
 72                                                << 
 73     SetMinMasses();                            << 
 74                                                << 
 75     arho = 0.5;    // alpha_rho0               << 
 76     aphi = 0.0;    // alpha_fi                 << 
 77     aJPs =-2.2;    // alpha_J/Psi              << 
 78     aUps =-8.0;    // alpha_Y      ??? O. Pisk << 
 79                                                << 
 80     aksi =-1.0;                                << 
 81     alft = 0.5;    // 2 * alpha'_R *<Pt^2>     << 
 82                                                << 
 83     an    = -0.5 ;                             << 
 84     ala   = -0.75; // an - arho/2 + aphi/2     << 
 85     alaC  =  an - arho/2.0 + aJPs/2.0;         << 
 86     alaB  =  an - arho/2.0 + aUps/2.0;         << 
 87     aXi   =  0.0;  // ??                       << 
 88     aXiC  =  0.0;  // ??                       << 
 89     aXiB  =  0.0;  // ??                       << 
 90     aXiCC =  0.0;  // ??                       << 
 91     aXiCB =  0.0;  // ??                       << 
 92     aXiBB =  0.0;  // ??                       << 
 93                                                << 
 94     SetFFq2q();                                << 
 95     SetFFq2qq();                               << 
 96     SetFFqq2q();                               << 
 97     SetFFqq2qq();                              << 
 98                          // d  u   s   c   b   << 
 99     G4int Index[5][5] = { { 0, 1,  2,  3,  4 } << 
100                           { 1, 5,  6,  7,  8 } << 
101                           { 2, 6,  9, 10, 11 } << 
102                           { 3, 7, 10, 12, 13 } << 
103                           { 4, 8, 11, 13, 14 } << 
104     for (G4int i = 0; i < 5; i++ ) {           << 
105       for ( G4int j = 0; j < 5; j++ ) {        << 
106         IndexDiQ[i][j] = Index[i][j];          << 
107       }                                        << 
108     };                                         << 
109 }                                                  55 }
110                                                    56 
111 G4QGSMFragmentation::~G4QGSMFragmentation()        57 G4QGSMFragmentation::~G4QGSMFragmentation()
112 {}                                             <<  58 {
                                                   >>  59 }
113                                                    60 
114 //--------------------------------------------     61 //----------------------------------------------------------------------------------------------------------
115                                                    62 
116 G4KineticTrackVector* G4QGSMFragmentation::Fra     63 G4KineticTrackVector* G4QGSMFragmentation::FragmentString(const G4ExcitedString& theString)
117 {                                                  64 {
118                                                << 
119   G4FragmentingString  aString(theString);     << 
120   SetMinimalStringMass(&aString);              << 
121                                                << 
122   #ifdef debug_QGSMfragmentation                   65   #ifdef debug_QGSMfragmentation
123   G4cout<<G4endl<<"QGSM StringFragm: String Ma <<  66   G4cout<<G4endl<<"QGSM StringFragm: String Mass " <<theString.Get4Momentum().mag()<<" Pz "
124                              <<theString.Get4M <<  67                                                    <<theString.Get4Momentum().pz()
125                              <<theString.Get4M <<  68         <<"------------------------------------"<<G4endl;
126                              <<"-------------- << 
127   G4cout<<"String ends Direct "<<theString.Get     69   G4cout<<"String ends Direct "<<theString.GetLeftParton()->GetPDGcode()<<" "
128                                <<theString.Get     70                                <<theString.GetRightParton()->GetPDGcode()<<" "
129                                <<theString.Get     71                                <<theString.GetDirection()<< G4endl;
130   G4cout<<"Left  mom "<<theString.GetLeftParto     72   G4cout<<"Left  mom "<<theString.GetLeftParton()->Get4Momentum()<<G4endl;
131   G4cout<<"Right mom "<<theString.GetRightPart     73   G4cout<<"Right mom "<<theString.GetRightParton()->Get4Momentum()<<G4endl;
132   G4cout<<"Check for Fragmentation "<<G4endl;      74   G4cout<<"Check for Fragmentation "<<G4endl;
133   #endif                                           75   #endif
134                                                    76 
135   // Can no longer modify Parameters for Fragm     77   // Can no longer modify Parameters for Fragmentation.
136   PastInitPhase=true;                              78   PastInitPhase=true;
137                                                    79   
138   // Check if string has enough mass to fragme <<  80   // check if string has enough mass to fragment...
139   G4KineticTrackVector * LeftVector=NULL;      << 
140                                                    81 
141   if ( !IsItFragmentable(&aString) ) {         <<  82   G4KineticTrackVector * LeftVector=LightFragmentationTest(&theString);
142      LeftVector=ProduceOneHadron(&theString);  << 
143                                                    83 
144      #ifdef debug_QGSMfragmentation            <<  84   #ifdef debug_QGSMfragmentation
145      if ( LeftVector != 0 ) G4cout<<"Non fragm <<  85   if ( LeftVector != 0 ) G4cout<<"Non fragmentable - the string is converted to one hadron "<<G4endl;
146      #endif                                    <<  86   #endif
147                                                    87 
148      if ( LeftVector == nullptr ) LeftVector = <<  88   if ( LeftVector != 0 ) return LeftVector;
149      return LeftVector;                        << 
150   }                                            << 
151                                                    89 
152   #ifdef debug_QGSMfragmentation                   90   #ifdef debug_QGSMfragmentation
153   G4cout<<"The string will be fragmented. "<<G     91   G4cout<<"The string will be fragmented. "<<G4endl;
154   #endif                                           92   #endif
155                                                    93   
156   LeftVector = new G4KineticTrackVector;           94   LeftVector = new G4KineticTrackVector;
157   G4KineticTrackVector * RightVector=new G4Kin     95   G4KineticTrackVector * RightVector=new G4KineticTrackVector;
158                                                    96 
159   G4ExcitedString *theStringInCMS=CopyExcited( <<  97   // this should work but its only a semi deep copy. %GF  G4ExcitedString theStringInCMS(theString);
                                                   >>  98   G4ExcitedString *theStringInCMS=CPExcited(theString);
160   G4LorentzRotation toCms=theStringInCMS->Tran     99   G4LorentzRotation toCms=theStringInCMS->TransformToAlignedCms();
161                                                   100 
162   G4bool success=false, inner_sucess=true;        101   G4bool success=false, inner_sucess=true;
163   G4int attempt=0;                                102   G4int attempt=0;
164   while ( !success && attempt++ < StringLoopIn    103   while ( !success && attempt++ < StringLoopInterrupt )  /* Loop checking, 07.08.2015, A.Ribon */
165   {                                               104   {
166                 #ifdef debug_QGSMfragmentation << 105     #ifdef debug_QGSMfragmentation
167                 G4cout<<"Loop_toFrag "<<theStr << 106     G4cout<<"Loop_toFrag "<<theStringInCMS->GetLeftParton()->GetPDGcode()<<" "
168                                       <<theStr << 107                           <<theStringInCMS->GetRightParton()->GetPDGcode()<<" "
169                                       <<theStr << 108                           <<theStringInCMS->GetDirection()<< G4endl;
170                 #endif                         << 109     #endif
171                                                << 110 
172     G4FragmentingString *currentString=new G4F << 111     G4FragmentingString *currentString=new G4FragmentingString(*theStringInCMS);
173                                                << 112 
174     std::for_each(LeftVector->begin(), LeftVec << 113     std::for_each(LeftVector->begin(), LeftVector->end(), DeleteKineticTrack());
175     LeftVector->clear();                       << 114     LeftVector->clear();
176     std::for_each(RightVector->begin(), RightV << 115     std::for_each(RightVector->begin(), RightVector->end(), DeleteKineticTrack());
177     RightVector->clear();                      << 116     RightVector->clear();
178                                                   117     
179     inner_sucess=true;  // set false on failur << 118     inner_sucess=true;  // set false on failure..
180                 const G4int maxNumberOfLoops = << 119     const G4int maxNumberOfLoops = 1000;
181                 G4int loopCounter = -1;        << 120     G4int loopCounter = -1;
182     while (! StopFragmenting(currentString) && << 121     while (! StopFragmenting(currentString) && ++loopCounter < maxNumberOfLoops )   /* Loop checking, 07.08.2015, A.Ribon */
183     {  // Split current string into hadron + n << 122     {  // Split current string into hadron + new string
184                                                << 123 
185                         #ifdef debug_QGSMfragm << 124       #ifdef debug_QGSMfragmentation
186                         G4cout<<"The string ca << 125       G4cout<<"The string can fragment. "<<G4endl;;
187                         #endif                 << 126       #endif
188       G4FragmentingString *newString=0;  // us << 127 
189       G4KineticTrack * Hadron=Splitup(currentS << 128       G4FragmentingString *newString=0;  // used as output from SplitUp...
190                                                << 129       G4KineticTrack * Hadron=Splitup(currentString,newString);
191       if ( Hadron != 0 )                       << 130 
192       {                                        << 131       if ( Hadron != 0 ) // && IsFragmentable(newString))
193                            #ifdef debug_QGSMfr << 132       {
194                            G4cout<<"Hadron pro << 133         #ifdef debug_QGSMfragmentation
195                            #endif              << 134         G4cout<<"Hadron prod at fragm. "<<Hadron->GetDefinition()->GetParticleName()<<G4endl;
196                            // To close the pro << 135         #endif
197          if ( currentString->GetDecayDirection << 136 
198            LeftVector->push_back(Hadron);      << 137         if ( currentString->GetDecayDirection() > 0 ) LeftVector->push_back(Hadron);
199                else                            << 138         else                                          RightVector->push_back(Hadron);
200              RightVector->push_back(Hadron);   << 139 
201                                                << 140   delete currentString;
202          delete currentString;                 << 141   currentString=newString;
203          currentString=newString;              << 142 
204                                                << 143       } else {
205       } else {                                 << 144 
206                                                << 145         #ifdef debug_QGSMfragmentation
207                            #ifdef debug_QGSMfr << 146         G4cout<<"abandon ... start from the beginning ---------------"<<G4endl;
208                            G4cout<<"abandon .. << 147         #endif
209                            #endif              << 148 
210                                                << 149   // abandon ... start from the beginning
211          // Abandon ... start from the beginni << 150   if (newString) delete newString;
212          if (newString) delete newString;      << 151   inner_sucess=false;
213          inner_sucess=false;                   << 152   break;
214          break;                                << 153       }
215       }                                        << 154     }
216     }                                          << 155     if ( loopCounter >= maxNumberOfLoops ) inner_sucess=false;
217                 if ( loopCounter >= maxNumberO << 156               
218                   inner_sucess=false;          << 157     // Split current string into 2 final Hadrons
219                 }                              << 158     #ifdef debug_QGSMfragmentation
220                                                << 159     G4cout<<"Split remaining string into 2 final hadrons."<<G4endl;
221     // Split current string into 2 final Hadro << 160     #endif
222                 #ifdef debug_QGSMfragmentation << 161 
223                 if( inner_sucess ) {           << 162     if ( inner_sucess && SplitLast(currentString,LeftVector, RightVector) ) 
224                   G4cout<<"Split remaining str << 163     {
225                 } else {                       << 164       success=true;
226       G4cout<<" New attempt to fragment string << 165     }
227     }                                          << 166     delete currentString;
228                 #endif                         << 167   } // End of while loop
229                 // To the close production of  << 
230     if ( inner_sucess &&                       << 
231          SplitLast(currentString,LeftVector, R << 
232     {                                          << 
233       success=true;                            << 
234     }                                          << 
235     delete currentString;                      << 
236   }                                            << 
237                                                   168   
238   delete theStringInCMS;                       << 169   delete theStringInCMS;
239                                                   170   
240   if ( ! success )                             << 171   if ( ! success )
241   {                                            << 172   {
242     std::for_each(LeftVector->begin(), LeftVec << 173     std::for_each(LeftVector->begin(), LeftVector->end(), DeleteKineticTrack());
243     LeftVector->clear();                       << 174     LeftVector->clear();
244     std::for_each(RightVector->begin(), RightV << 175     std::for_each(RightVector->begin(), RightVector->end(), DeleteKineticTrack());
245     delete RightVector;                        << 176     delete RightVector;
246     return LeftVector;                         << 177     return LeftVector;
247   }                                            << 178   }
248                                                   179     
249   // Join Left- and RightVector into LeftVecto << 180   // Join Left- and RightVector into LeftVector in correct order.
250   while(!RightVector->empty())  /* Loop checki << 181   while(!RightVector->empty())  /* Loop checking, 07.08.2015, A.Ribon */
251   {                                            << 182   {
252       LeftVector->push_back(RightVector->back( << 183     LeftVector->push_back(RightVector->back());
253       RightVector->erase(RightVector->end()-1) << 184     RightVector->erase(RightVector->end()-1);
254   }                                            << 185   }
255   delete RightVector;                          << 186   delete RightVector;
256                                                << 
257   CalculateHadronTimePosition(theString.Get4Mo << 
258                                                << 
259   G4LorentzRotation toObserverFrame(toCms.inve << 
260                                                << 
261   for (size_t C1 = 0; C1 < LeftVector->size(); << 
262   {                                            << 
263      G4KineticTrack* Hadron = LeftVector->oper << 
264      G4LorentzVector Momentum = Hadron->Get4Mo << 
265      Momentum = toObserverFrame*Momentum;      << 
266      Hadron->Set4Momentum(Momentum);           << 
267      G4LorentzVector Coordinate(Hadron->GetPos << 
268      Momentum = toObserverFrame*Coordinate;    << 
269      Hadron->SetFormationTime(Momentum.e());   << 
270      G4ThreeVector aPosition(Momentum.vect()); << 
271      Hadron->SetPosition(theString.GetPosition << 
272   }                                            << 
273   return LeftVector;                           << 
274 }                                              << 
275                                                   187 
276 //-------------------------------------------- << 188   CalculateHadronTimePosition(theString.Get4Momentum().mag(), LeftVector);
277                                                   189 
278 G4bool G4QGSMFragmentation::IsItFragmentable(c << 190   G4LorentzRotation toObserverFrame(toCms.inverse());
279 {                                              << 191 
280   return sqr( MinimalStringMass + MassCut ) <  << 192   for(size_t C1 = 0; C1 < LeftVector->size(); C1++)
                                                   >> 193   {
                                                   >> 194     G4KineticTrack* Hadron = LeftVector->operator[](C1);
                                                   >> 195     G4LorentzVector Momentum = Hadron->Get4Momentum();
                                                   >> 196     Momentum = toObserverFrame*Momentum;
                                                   >> 197     Hadron->Set4Momentum(Momentum);
                                                   >> 198     G4LorentzVector Coordinate(Hadron->GetPosition(), Hadron->GetFormationTime());
                                                   >> 199     Momentum = toObserverFrame*Coordinate;
                                                   >> 200     Hadron->SetFormationTime(Momentum.e());
                                                   >> 201     G4ThreeVector aPosition(Momentum.vect());
                                                   >> 202     Hadron->SetPosition(theString.GetPosition()+aPosition);
                                                   >> 203    }
                                                   >> 204    return LeftVector;
281 }                                                 205 }
282                                                   206 
283 //--------------------------------------------    207 //----------------------------------------------------------------------------------------------------------
284                                                   208 
285 G4bool G4QGSMFragmentation::StopFragmenting(co << 209 G4double G4QGSMFragmentation::GetLightConeZ(G4double zmin, G4double zmax, G4int PartonEncoding,  
286 {                                              << 210                                             G4ParticleDefinition* pHadron, G4double , G4double )
287   SetMinimalStringMass(string);                << 211 {    
288         if ( MinimalStringMass < 0.0 ) return  << 212   #ifdef debug_QGSMfragmentation
                                                   >> 213   G4cout<<"GetLightConeZ zmin zmax Parton pHadron "<<zmin<<" "<<zmax<<" "<<PartonEncoding<<" "<<pHadron->GetParticleName()<<G4endl;
                                                   >> 214   #endif
289                                                   215 
290         G4double smass = string->Mass();       << 216   G4double z;    
291   G4double x = (string->IsAFourQuarkString())  << 217   G4double d1, d2, yf;
292     : 0.66e-6*(smass - MinimalStringMass)*(sma << 218   G4double invD1(0.),invD2(0.), r1(0.),r2(0.),r12(0.);
293                                                << 
294         G4bool res = true;                     << 
295         if(x > 0.0) {                          << 
296           res = (x < 200.) ? (G4UniformRand()  << 
297   }                                            << 
298   return res;                                  << 
299 }                                              << 
300                                                   219 
301 //-------------------------------------------- << 220   G4int absCode = std::abs( PartonEncoding );
                                                   >> 221   G4int absHadronCode=std::abs(pHadron->GetPDGEncoding());
302                                                   222 
303 G4KineticTrack * G4QGSMFragmentation::Splitup( << 223   G4int q1, q2, q3;
304                              G4FragmentingStri << 224   q1 = absHadronCode/1000; q2 = (absHadronCode % 1000)/100; q3 = (absHadronCode % 100)/10;
305 {                                              << 
306        #ifdef debug_QGSMfragmentation          << 
307        G4cout<<G4endl;                         << 
308        G4cout<<"Start SplitUP (G4VLongitudinal << 
309        G4cout<<"String partons: " <<string->Ge << 
310                                   <<string->Ge << 
311              <<"Direction "       <<string->Ge << 
312        #endif                                  << 
313                                                << 
314        //... random choice of string end to us << 
315        G4int SideOfDecay = (G4UniformRand() <  << 
316        if (SideOfDecay < 0)                    << 
317        {                                       << 
318     string->SetLeftPartonStable();             << 
319        } else                                  << 
320        {                                       << 
321           string->SetRightPartonStable();      << 
322        }                                       << 
323                                                << 
324        G4ParticleDefinition *newStringEnd;     << 
325        G4ParticleDefinition * HadronDefinition << 
326        if (string->DecayIsQuark())             << 
327        {                                       << 
328     G4double ProbDqADq = GetDiquarkSuppress(); << 
329                                                << 
330     G4int NumberOfpossibleBaryons = 2;         << 
331                                                << 
332     if (string->GetLeftParton()->GetParticleSu << 
333     if (string->GetRightParton()->GetParticleS << 
334                                                << 
335     G4double ActualProb  = ProbDqADq ;         << 
336           ActualProb *= (1.0-G4Exp(2.0*(1.0 -  << 
337                                                << 
338     SetDiquarkSuppression(ActualProb);         << 
339                                                << 
340           HadronDefinition= QuarkSplitup(strin << 
341                                                << 
342     SetDiquarkSuppression(ProbDqADq);          << 
343        } else {                                << 
344           HadronDefinition= DiQuarkSplitup(str << 
345        }                                       << 
346                                                << 
347        if ( HadronDefinition == NULL ) return  << 
348                                                << 
349        #ifdef debug_QGSMfragmentation          << 
350        G4cout<<"The parton "<<string->GetDecay << 
351              <<" produces hadron "<<HadronDefi << 
352              <<" and is transformed to "<<newS << 
353        G4cout<<"The side of the string decay L << 
354        #endif                                  << 
355        // create new String from old, ie. keep << 
356                                                << 
357        newString=new G4FragmentingString(*stri << 
358                                                << 
359                                                << 
360        #ifdef debug_QGSMfragmentation          << 
361        G4cout<<"An attempt to determine its en << 
362        #endif                                  << 
363        G4LorentzVector* HadronMomentum=SplitEa << 
364                                                   225 
365        delete newString; newString=0;          << 226   G4bool StrangeHadron = (q1 == 3) || (q2 == 3) || (q3 == 3);
366                                                << 
367        G4KineticTrack * Hadron =0;             << 
368        if ( HadronMomentum != 0 ) {            << 
369                                                   227 
370            #ifdef debug_QGSMfragmentation      << 228   if (absCode < 10)
371            G4cout<<"The attempt was successful << 229   {                                              // A quark fragmentation ----------------------------
372            #endif                              << 230     if(absCode == 1 || absCode == 2) 
373      G4ThreeVector   Pos;                      << 231     {
374      Hadron = new G4KineticTrack(HadronDefinit << 232       if(absHadronCode < 1000) 
375                                                << 233       {                        // Meson  produced
376          newString=new G4FragmentingString(*st << 234         if( !StrangeHadron )  {d1=2.0;        d2 = -arho + alft;}
377                                                << 235         else                  {d1=1.0;        d2 = -aphi + alft;}
378      delete HadronMomentum;                    << 236       } else                 
379        }                                       << 237       {                        // Baryon produced
380        else                                    << 238         if( !StrangeHadron )  {d1=0.0;        d2 =      arho - 2.0*an        + alft;}
381        {                                       << 239         else                  {d1=0.0;        d2 =  2.0*arho - 2.0*an - aphi + alft;} 
382          #ifdef debug_QGSMfragmentation        << 240       }
383          G4cout<<"The attempt was not successf << 241     } 
384          #endif                                << 242     else if(absCode == 3)  
385        }                                       << 243     {
386                                                << 244       if(absHadronCode < 1000){d1=1.0 - aphi; d2 =  -arho          + alft;}  // Meson  produced s->K + u/d
387        #ifdef debug_VStringDecay               << 245       else                    {d1=1.0 - aphi; d2 =   arho - 2.0*an + alft;}  // Baryon produced 
388        G4cout<<"End SplitUP (G4VLongitudinalSt << 
389        #endif                                  << 
390                                                   246 
391        return Hadron;                          << 247     } else throw G4HadronicException(__FILE__, __LINE__, "Unknown PDGencoding in G4QGSMFragmentation::G4LightConeZ");
392 }                                              << 
393                                                   248 
394 //-------------------------------------------- << 249     #ifdef debug_QGSMfragmentation
                                                   >> 250     G4cout<<"d1 d2 "<<d1<<" "<<d2<<G4endl;
                                                   >> 251     #endif
395                                                   252 
396 G4ParticleDefinition *G4QGSMFragmentation::DiQ << 253     d1+=1.0; d2+=1.0;
397                                                << 
398 {                                              << 
399    //... can Diquark break or not?             << 
400    if (G4UniformRand() < DiquarkBreakProb )  / << 
401    {                                           << 
402       G4int stableQuarkEncoding = decay->GetPD << 
403       G4int decayQuarkEncoding = (decay->GetPD << 
404                                                   254 
405       if (G4UniformRand() < 0.5)               << 255     invD1=1./d1; invD2=1./d2;
406       {                                        << 
407          G4int Swap = stableQuarkEncoding;     << 
408          stableQuarkEncoding = decayQuarkEncod << 
409          decayQuarkEncoding = Swap;            << 
410       }                                        << 
411                                                   256 
412       G4int IsParticle=(decayQuarkEncoding>0)  << 257     const G4int maxNumberOfLoops = 10000;
                                                   >> 258     G4int loopCounter = 0;
                                                   >> 259     do
                                                   >> 260     {
                                                   >> 261       r1=G4Pow::GetInstance()->powA(G4UniformRand(),invD1);
                                                   >> 262       r2=G4Pow::GetInstance()->powA(G4UniformRand(),invD2);
                                                   >> 263       r12=r1+r2;
                                                   >> 264       z=r1/r12;
                                                   >> 265     } while( ( (r12 > 1.0) || !((zmin <= z)&&(z <= zmax))) && ++loopCounter < maxNumberOfLoops );  /* Loop checking, 07.08.2015, A.Ribon */
                                                   >> 266     if ( loopCounter >= maxNumberOfLoops ) {
                                                   >> 267       z = 0.5*(zmin + zmax);  // Just a value between zmin and zmax, no physics considerations at all! 
                                                   >> 268     }
413                                                   269 
414       G4double StrSup=GetStrangeSuppress();    << 270     return z;
415       SetStrangenessSuppression((1.0 - 0.07)/2 << 271   }
416       pDefPair QuarkPair = CreatePartonPair(Is << 272   else
417       SetStrangenessSuppression(StrSup);       << 273   {                                              // A di-quark fragmentation -------------------------
                                                   >> 274     if(absCode == 1103 || absCode == 2101 || 
                                                   >> 275        absCode == 2203 || absCode == 2103)
                                                   >> 276     {
                                                   >> 277       if(absHadronCode < 1000)                                                // Meson production
                                                   >> 278       {
                                                   >> 279         if( !StrangeHadron )  {d1=1.0; d2=     arho - 2.0*an        + alft;} 
                                                   >> 280         else                  {d1=1.0; d2 = 2.*arho - 2.0*an - aphi + alft;}
                                                   >> 281       } else {                                                                // Baryon production
                                                   >> 282         if( !StrangeHadron )  {d1=2.0*(arho - an); d2= -arho         + alft;}
                                                   >> 283         else                  {d1=2.0*(arho - an); d2 =-aphi         + alft;} 
                                                   >> 284       }
418                                                   285 
419       //... Build new Diquark                  << 286       #ifdef debug_QGSMfragmentation
420       G4int QuarkEncoding=QuarkPair.second->Ge << 287       G4cout<<"d1 d2 "<<d1<<" "<<d2<<G4endl;
421       G4int i10  = std::max(std::abs(QuarkEnco << 288       #endif
422       G4int i20  = std::min(std::abs(QuarkEnco << 289 
423       G4int spin = (i10 != i20 && G4UniformRan << 290       d1+=1.0; d2+=1.0;
424       G4int NewDecayEncoding = -1*IsParticle*( << 291       invD1=1./d1; invD2=1./d2;
425                                                << 292 
426       created = FindParticle(NewDecayEncoding) << 293       const G4int maxNumberOfLoops = 10000;
427       G4ParticleDefinition * decayQuark=FindPa << 294       G4int loopCounter = 0;
428       G4ParticleDefinition * had=hadronizer->B << 295       do
429                                                << 296       {
430       DecayQuark = decay->GetPDGEncoding();    << 297         r1=G4Pow::GetInstance()->powA(G4UniformRand(),invD1);
431       NewQuark   = NewDecayEncoding;           << 298         r2=G4Pow::GetInstance()->powA(G4UniformRand(),invD2);
432                                                << 299         r12=r1+r2;
433       return had;                              << 300         z=r1/r12;
434                                                << 301       } while( ( (r12 > 1.0) || !((zmin <= z)&&(z <= zmax))) && ++loopCounter < maxNumberOfLoops );  /* Loop checking, 07.08.2015, A.Ribon */ 
435    } else {  //... Diquark does not break      << 302       if ( loopCounter >= maxNumberOfLoops ) {
436                                                << 303         z = 0.5*(zmin + zmax);  // Just a value between zmin and zmax, no physics considerations at all! 
437       G4int IsParticle=(decay->GetPDGEncoding( << 304       }
438       G4double StrSup=GetStrangeSuppress();  / << 
439       SetStrangenessSuppression((1.0 - 0.07)/2 << 
440       pDefPair QuarkPair = CreatePartonPair(Is << 
441       SetStrangenessSuppression(StrSup);       << 
442                                                   305 
443       created = QuarkPair.second;              << 306       return z;
                                                   >> 307     }
                                                   >> 308     else if(absCode == 3101 || absCode == 3103 ||           // For strange d-quarks
                                                   >> 309             absCode == 3201 || absCode == 3203)
                                                   >> 310     {
                                                   >> 311       d2 =  (alft - (2.*ala - arho));
                                                   >> 312     }
                                                   >> 313     else
                                                   >> 314     {
                                                   >> 315       d2 =  (alft - (2.*aksi - arho));
                                                   >> 316     }
444                                                   317 
445       DecayQuark = decay->GetPDGEncoding();    << 318     const G4int maxNumberOfLoops = 1000;
446       NewQuark   = created->GetPDGEncoding();  << 319     G4int loopCounter = 0;
                                                   >> 320     do  
                                                   >> 321     {
                                                   >> 322       z = zmin + G4UniformRand() * (zmax - zmin);
                                                   >> 323       d1 =  (1. - z);
                                                   >> 324       yf = G4Pow::GetInstance()->powA(d1, d2);
                                                   >> 325     } 
                                                   >> 326     while( (G4UniformRand() > yf) && ++loopCounter < maxNumberOfLoops );  /* Loop checking, 07.08.2015, A.Ribon */   
                                                   >> 327   }
447                                                   328 
448       G4ParticleDefinition * had=hadronizer->B << 329   return z;
449       return had;                              << 
450    }                                           << 
451 }                                                 330 }
452                                                   331 
453 //--------------------------------------------    332 //-----------------------------------------------------------------------------------------
454                                                   333 
455 G4LorentzVector * G4QGSMFragmentation::SplitEa    334 G4LorentzVector * G4QGSMFragmentation::SplitEandP(G4ParticleDefinition * pHadron,
456                                                << 335                                                   G4FragmentingString * string,
457                                                   336                                                   G4FragmentingString * NewString)
458 {                                                 337 {
459        G4double HadronMass = pHadron->GetPDGMa << 338   G4double HadronMass = pHadron->GetPDGMass();
460                                                << 
461        SetMinimalStringMass(NewString);        << 
462                                                   339 
463        if ( MinimalStringMass < 0.0 ) return n << 340   //G4double MinimalStringMass= FragmentationMass(NewString,&G4HadronBuilder::BuildHighSpin);
                                                   >> 341   G4double MinimalStringMass= FragmentationMass(NewString,&G4HadronBuilder::Build);
                                                   >> 342   //FragmentationMass(NewString,&G4HadronBuilder::BuildLowSpin); // Uzhi 03.06.2015
                                                   >> 343   // Uzhi 03.06.2015 It would be well to sample randomly HighSpin
464                                                   344 
465        #ifdef debug_QGSMfragmentation          << 345   #ifdef debug_QGSMfragmentation
466        G4cout<<"G4QGSMFragmentation::SplitEand << 346   G4cout<<"G4QGSMFragmentation::SplitEandP "<<pHadron->GetParticleName()<<G4endl;
467        G4cout<<"String 4 mom, String M "<<stri << 347   G4cout<<"String 4 mom, String M "<<string->Get4Momentum()<<" "<<string->Mass()<<G4endl;
468        G4cout<<"HadM MinimalStringMassLeft Str << 348   G4cout<<"HadM MinimalStringMassLeft StringM hM+sM "<<HadronMass<<" "<<MinimalStringMass<<" "
469              <<string->Mass()<<" "<<HadronMass << 349         <<string->Mass()<<" "<<HadronMass+MinimalStringMass<<G4endl;
470        #endif                                  << 350   #endif
471                                                   351 
472        if (HadronMass + MinimalStringMass > st << 352   if(HadronMass + MinimalStringMass > string->Mass())
473        {                                       << 353   {
474          #ifdef debug_QGSMfragmentation        << 354     #ifdef debug_QGSMfragmentation
475          G4cout<<"Mass of the string is not su << 355     G4cout<<"Mass of the string is not sufficient to produce the hadron!"<<G4endl;
476          #endif                                << 356     #endif
477    return 0;                                   << 357     return 0;
478        }  // have to start all over!           << 358   } // have to start all over!
479                                                   359 
480        // calculate and assign hadron transver << 360   // calculate and assign hadron transverse momentum component HadronPx andHadronPy
481        G4double StringMT2 = string->MassT2();  << 361   G4double StringMT2 = string->MassT2();
482        G4double StringMT  = std::sqrt(StringMT << 362   G4double StringMT  = std::sqrt(StringMT2);
483                                                   363 
484        G4LorentzVector String4Momentum = strin << 364   G4LorentzVector String4Momentum = string->Get4Momentum();
485        String4Momentum.setPz(0.);              << 365   String4Momentum.setPz(0.);
486        G4ThreeVector StringPt = String4Momentu << 366   G4ThreeVector StringPt = String4Momentum.vect();
487                                                   367 
488        G4ThreeVector HadronPt    , RemSysPt;   << 368   G4ThreeVector HadronPt    , RemSysPt;
489        G4double      HadronMassT2, ResidualMas << 369   G4double      HadronMassT2, ResidualMassT2;
490                                                   370 
491        // Mt distribution is implemented       << 371   //...  sample Pt of the hadron
492        G4double HadronMt, Pt, Pt2, phi;        << 372   G4int attempt=0;
                                                   >> 373   do
                                                   >> 374   {
                                                   >> 375     attempt++; if(attempt > StringLoopInterrupt) return 0;
493                                                   376 
494        //...  sample Pt of the hadron          << 377     HadronPt =SampleQuarkPt()  + string->DecayPt(); 
495        G4int attempt=0;                        << 378     HadronPt.setZ(0);
496        do                                      << 379     RemSysPt = StringPt - HadronPt;
497        {                                       << 
498          attempt++; if (attempt > StringLoopIn << 
499                                                   380 
500          HadronMt = HadronMass - 200.0*G4Log(G << 381     HadronMassT2 = sqr(HadronMass) + HadronPt.mag2();
501          Pt2 = sqr(HadronMt)-sqr(HadronMass);  << 382     ResidualMassT2=sqr(MinimalStringMass) + RemSysPt.mag2();
502          phi = 2.*pi*G4UniformRand();          << 
503          G4ThreeVector SampleQuarkPtw= G4Three << 
504          HadronPt =SampleQuarkPtw  + string->D << 
505          HadronPt.setZ(0);                     << 
506          RemSysPt = StringPt - HadronPt;       << 
507                                                   383 
508          HadronMassT2 = sqr(HadronMass) + Hadr << 384   } while(std::sqrt(HadronMassT2) + std::sqrt(ResidualMassT2) > StringMT);  /* Loop checking, 07.08.2015, A.Ribon */
509          ResidualMassT2=sqr(MinimalStringMass) << 
510                                                   385 
511        } while (std::sqrt(HadronMassT2) + std: << 386   //...  sample z to define hadron longitudinal momentum and energy
                                                   >> 387   //... but first check the available phase space
512                                                   388 
513        //...  sample z to define hadron longit << 389   G4double Pz2 = (sqr(StringMT2 - HadronMassT2 - ResidualMassT2) -
514        //... but first check the available pha << 390       4*HadronMassT2 * ResidualMassT2)/4./StringMT2;
515                                                   391 
516        G4double Pz2 = (sqr(StringMT2 - HadronM << 392   if(Pz2 < 0 ) {return 0;}          // have to start all over!
517           4*HadronMassT2 * ResidualMassT2)/4./ << 
518                                                   393 
519        if ( Pz2 < 0 ) {return 0;}          //  << 394   //... then compute allowed z region  z_min <= z <= z_max
520                                                   395 
521        //... then compute allowed z region  z_ << 396   G4double Pz = std::sqrt(Pz2);
                                                   >> 397   G4double zMin = (std::sqrt(HadronMassT2+Pz2) - Pz)/std::sqrt(StringMT2);
                                                   >> 398   G4double zMax = (std::sqrt(HadronMassT2+Pz2) + Pz)/std::sqrt(StringMT2);
522                                                   399 
523        G4double Pz = std::sqrt(Pz2);           << 400   /*
524        G4double zMin = (std::sqrt(HadronMassT2 << 401   G4double DecayQuarkMass2  = sqr(string->GetDecayParton()->GetPDGMass());
525        G4double zMax = (std::sqrt(HadronMassT2 << 402   G4double HadronMass2T = sqr(HadronMass) + HadronPt.mag2();
                                                   >> 403   if (DecayQuarkMass2 + HadronMass2T >= SmoothParam*(string->Mass2()) ) 
                                                   >> 404     return 0;   // have to start all over!
                                                   >> 405   //... then compute allowed z region  z_min <= z <= z_max 
                                                   >> 406   //G4double zMin = HadronMass2T/(string->Mass2());
                                                   >> 407   //G4double zMax = 1. - DecayQuarkMass2/(string->Mass2());
                                                   >> 408   */
526                                                   409 
527        if (zMin >= zMax) return 0;    // have  << 410   if (zMin >= zMax) return 0;   // have to start all over!
528                                                   411   
529        G4double z = GetLightConeZ(zMin, zMax,  << 412   G4double z = GetLightConeZ(zMin, zMax, string->GetDecayParton()->GetPDGEncoding(),
530                       string->GetDecayParton() << 413                              pHadron, HadronPt.x(), HadronPt.y());      
531                       HadronPt.x(), HadronPt.y << 
532                                                << 
533        //... now compute hadron longitudinal m << 
534        // longitudinal hadron momentum compone << 
535                                                << 
536        HadronPt.setZ( 0.5* string->GetDecayDir << 
537           (z * string->LightConeDecay() -      << 
538            HadronMassT2/(z * string->LightCone << 
539        G4double HadronE  = 0.5* (z * string->L << 
540          HadronMassT2/(z * string->LightConeDe << 
541                                                << 
542        G4LorentzVector * a4Momentum= new G4Lor << 
543                                                << 
544        #ifdef debug_QGSMfragmentation          << 
545        G4cout<<"string->GetDecayDirection() st << 
546              <<string->GetDecayDirection()<<"  << 
547        G4cout<<"HadronPt,HadronE "<<HadronPt<< << 
548        G4cout<<"Out of QGSM SplitEandP "<<G4en << 
549        #endif                                  << 
550                                                   414 
551        return a4Momentum;                      << 415   //... now compute hadron longitudinal momentum and energy
552 }                                              << 416   // longitudinal hadron momentum component HadronPz
553                                                   417 
554 //-------------------------------------------- << 418   HadronPt.setZ(0.5* string->GetDecayDirection() * (z * string->LightConeDecay() - 
                                                   >> 419           HadronMassT2/(z * string->LightConeDecay())));
                                                   >> 420   G4double HadronE  = 0.5* (z * string->LightConeDecay() + 
                                                   >> 421                 HadronMassT2/(z * string->LightConeDecay()));
555                                                   422 
556 G4double G4QGSMFragmentation::GetLightConeZ(G4 << 423   G4LorentzVector * a4Momentum= new G4LorentzVector(HadronPt,HadronE);
557                                             G4 << 
558 {                                              << 
559   G4double lambda = 2.0*(sqr(ptx)+sqr(pty))/sq << 
560                                                   424 
561   #ifdef debug_QGSMfragmentation                  425   #ifdef debug_QGSMfragmentation
562   G4cout<<"GetLightConeZ zmin zmax Parton pHad << 426   G4cout<<"string->GetDecayDirection() string->LightConeDecay() "
563         <<" "/*<< pHadron->GetParticleName() * << 427         <<string->GetDecayDirection()<<" "<<string->LightConeDecay()<<G4endl;
                                                   >> 428   G4cout<<"HadronPt,HadronE "<<HadronPt<<" "<<HadronE<<G4endl;
                                                   >> 429   //G4cout<<"String4Momentum "<<String4Momentum<<G4endl;
                                                   >> 430   //G4int Uzhi; G4cin>>Uzhi;
                                                   >> 431   G4cout<<"Out of QGSM SplitEandP "<<G4endl;
564   #endif                                          432   #endif
565                                                   433 
566   G4double z(0.);                              << 434   return a4Momentum;
567   G4int DiQold(0), DiQnew(0);                  << 
568   G4double d1(-1.0), d2(0.);                   << 
569   G4double invD1(0.),invD2(0.), r1(0.),r2(0.), << 
570                                                << 
571   G4int absDecayQuarkCode = std::abs( DecayQua << 
572   G4int absNewQuarkCode   = std::abs( NewQuark << 
573                                                << 
574   G4int q1(0), q2(0);                          << 
575   //  q1 = absDecayQuarkCode/1000; q2 = (absDe << 
576                                                << 
577   G4int qA(0), qB(0);                          << 
578   //  qA = absNewQuarkCode/1000;   qB = (absNe << 
579                                                << 
580   if ( (absDecayQuarkCode < 6) && (absNewQuark << 
581     d1 = FFq2q[absDecayQuarkCode-1][absNewQuar << 
582   }                                            << 
583                                                << 
584   if ( (absDecayQuarkCode < 6) && (absNewQuark << 
585    qA = absNewQuarkCode/1000;   qB = (absNewQu << 
586    d1 = FFq2qq[absDecayQuarkCode-1][DiQnew][0] << 
587   }                                            << 
588                                                << 
589   if ( (absDecayQuarkCode > 6) && (absNewQuark << 
590     q1 = absDecayQuarkCode/1000; q2 = (absDeca << 
591     d1 = FFqq2q[DiQold][absNewQuarkCode-1][0]; << 
592   }                                            << 
593                                                << 
594   if ( d1 < 0. ) {                             << 
595     q1 = absDecayQuarkCode/1000; q2 = (absDeca << 
596     qA = absNewQuarkCode/1000;   qB = (absNewQ << 
597     d1 = FFqq2qq[DiQold][DiQnew][0]; d2 = FFqq << 
598   }                                            << 
599                                                << 
600   d2 +=lambda;                                 << 
601   d1+=1.0; d2+=1.0;                            << 
602                                                << 
603   invD1=1./d1; invD2=1./d2;                    << 
604                                                << 
605   const G4int maxNumberOfLoops = 10000;        << 
606   G4int loopCounter = 0;                       << 
607   do  // Jong's algorithm                      << 
608   {                                            << 
609     r1=G4Pow::GetInstance()->powA(G4UniformRan << 
610     r2=G4Pow::GetInstance()->powA(G4UniformRan << 
611     r12=r1+r2;                                 << 
612     z=r1/r12;                                  << 
613   } while ( ( (r12 > 1.0) || !((zmin <= z)&&(z << 
614             ++loopCounter < maxNumberOfLoops ) << 
615                                                << 
616   if ( loopCounter >= maxNumberOfLoops ) {     << 
617     z = 0.5*(zmin + zmax);  // Just a value be << 
618   }                                            << 
619                                                << 
620   return z;                                    << 
621 }                                                 435 }
622                                                   436 
623 //--------------------------------------------    437 //-----------------------------------------------------------------------------------------
624                                                   438 
625 G4bool G4QGSMFragmentation::SplitLast(G4Fragme    439 G4bool G4QGSMFragmentation::SplitLast(G4FragmentingString * string,
626                     G4KineticTrackVector * Lef << 440               G4KineticTrackVector * LeftVector,
627                   G4KineticTrackVector * Right    441                   G4KineticTrackVector * RightVector)
628 {                                                 442 {
629     //... perform last cluster decay           << 443   //... perform last cluster decay
630                                                   444 
631     G4ThreeVector ClusterVel =string->Get4Mome << 445   G4ThreeVector ClusterVel =string->Get4Momentum().boostVector();
632     G4double ResidualMass    =string->Mass();  << 446   G4double ResidualMass    =string->Mass(); 
633                                                   447 
634     #ifdef debug_QGSMfragmentation             << 448   #ifdef debug_QGSMfragmentation
635     G4cout<<"Split last----------------------- << 449   G4cout<<"Split last-----------------------------------------"<<G4endl;
636     G4cout<<"StrMass "<<ResidualMass<<" q's "  << 450   G4cout<<"StrMass "<<ResidualMass<<" q's "
637           <<string->GetLeftParton()->GetPartic << 451         <<string->GetLeftParton()->GetParticleName()<<" "
638           <<string->GetRightParton()->GetParti << 452         <<string->GetRightParton()->GetParticleName()<<G4endl;
639     #endif                                     << 453   #endif
640                                                << 
641     G4int cClusterInterrupt = 0;               << 
642     G4ParticleDefinition *LeftHadron = nullptr << 
643     G4ParticleDefinition *RightHadron = nullpt << 
644     const G4int maxNumberOfLoops = 1000;       << 
645     G4int loopCounter = 0;                     << 
646                                                   454 
647     G4double LeftHadronMass(0.); G4double Righ << 455   G4double ClusterMassCut = ClusterMass;            // Taken from G4VLongitudinalStringDecay
648     do                                         << 456   G4int cClusterInterrupt = 0;
                                                   >> 457   G4ParticleDefinition * LeftHadron, * RightHadron;
                                                   >> 458   const G4int maxNumberOfLoops = 1000;
                                                   >> 459   G4int loopCounter = 0;
                                                   >> 460   do
                                                   >> 461   {
                                                   >> 462     if (cClusterInterrupt++ >= ClusterLoopInterrupt)
649     {                                             463     {
650         if (cClusterInterrupt++ >= ClusterLoop << 
651         LeftHadronMass = -MaxMass; RightHadron << 
652                                                << 
653   G4ParticleDefinition * quark = nullptr;      << 
654   string->SetLeftPartonStable(); // to query q << 
655                                                << 
656   if (string->DecayIsQuark() && string->Stable << 
657   {                                            << 
658     //... there are quarks on cluster ends     << 
659                                                << 
660     G4int IsParticle=(string->GetLeftParton()- << 
661                 // if we have a quark, we need << 
662                                                << 
663     pDefPair QuarkPair = CreatePartonPair(IsPa << 
664     quark = QuarkPair.second;                  << 
665                                                << 
666     LeftHadron= hadronizer->Build(QuarkPair.fi << 
667           if ( LeftHadron == NULL ) continue;  << 
668           RightHadron = hadronizer->Build(stri << 
669           if ( RightHadron == NULL ) continue; << 
670   } else if( (!string->DecayIsQuark() &&  stri << 
671              ( string->DecayIsQuark() && !stri << 
672     //... there is a Diquark on one of cluster << 
673     G4int IsParticle;                          << 
674     if ( string->StableIsQuark() ) {           << 
675       IsParticle=(string->GetLeftParton()->Get << 
676     } else {                                   << 
677       IsParticle=(string->GetLeftParton()->Get << 
678     }                                          << 
679                                                << 
680           //G4double ProbSaS   = 1.0 - 2.0 * G << 
681           //G4double ActualProb = ProbSaS * 1. << 
682           //SetStrangenessSuppression((1.0-Act << 
683                                                << 
684           pDefPair QuarkPair = CreatePartonPai << 
685           //SetStrangenessSuppression((1.0-Pro << 
686           quark = QuarkPair.second;            << 
687           LeftHadron=hadronizer->Build(QuarkPa << 
688           if ( LeftHadron == NULL ) continue;  << 
689           RightHadron = hadronizer->Build(stri << 
690           if ( RightHadron == NULL ) continue; << 
691         } else {  // Diquark and anti-diquark  << 
692           if (cClusterInterrupt++ >= ClusterLo << 
693           G4int LeftQuark1= string->GetLeftPar << 
694           G4int LeftQuark2=(string->GetLeftPar << 
695           G4int RightQuark1= string->GetRightP << 
696           G4int RightQuark2=(string->GetRightP << 
697           if (G4UniformRand()<0.5) {           << 
698             LeftHadron  =hadronizer->Build(Fin << 
699             RightHadron =hadronizer->Build(Fin << 
700           } else {                             << 
701             LeftHadron  =hadronizer->Build(Fin << 
702             RightHadron =hadronizer->Build(Fin << 
703           }                                    << 
704     if ( (LeftHadron == NULL) || (RightHadron  << 
705         }                                      << 
706         LeftHadronMass  = LeftHadron->GetPDGMa << 
707         RightHadronMass = RightHadron->GetPDGM << 
708         //... repeat procedure, if mass of clu << 
709     } while ( ( ResidualMass <= LeftHadronMass << 
710               && ++loopCounter < maxNumberOfLo << 
711                                                << 
712     if ( loopCounter >= maxNumberOfLoops ) {   << 
713       return false;                               464       return false;
714     }                                             465     }
715                                                   466 
716     //... compute hadron momenta and energies  << 467     G4ParticleDefinition * quark = NULL;
717     G4LorentzVector  LeftMom, RightMom;        << 468     string->SetLeftPartonStable(); // to query quark contents..
718     G4ThreeVector    Pos;                      << 
719     Sample4Momentum(&LeftMom , LeftHadron->Get << 
720                     &RightMom, RightHadron->Ge << 
721     LeftMom.boost(ClusterVel);                 << 
722     RightMom.boost(ClusterVel);                << 
723                                                   469 
724     #ifdef debug_QGSMfragmentation             << 470     if (string->DecayIsQuark() && string->StableIsQuark() ) 
725     G4cout<<LeftHadron->GetParticleName()<<" " << 471     {
726     G4cout<<"Left  Hadrom P M "<<LeftMom<<" "< << 472       //... there are quarks on cluster ends
727     G4cout<<"Right Hadrom P M "<<RightMom<<" " << 473       LeftHadron= QuarkSplitup(string->GetLeftParton(), quark);
728     #endif                                     << 474     } else {
                                                   >> 475       //... there is a Diquark on cluster ends
                                                   >> 476       G4int IsParticle;
                                                   >> 477       if ( string->StableIsQuark() ) {
                                                   >> 478   IsParticle=(string->GetLeftParton()->GetPDGEncoding()>0) ? -1 : +1; 
                                                   >> 479       } else {
                                                   >> 480   IsParticle=(string->GetLeftParton()->GetPDGEncoding()>0) ? +1 : -1;
                                                   >> 481       }
729                                                   482 
730     LeftVector->push_back(new G4KineticTrack(L << 483       pDefPair QuarkPair = CreatePartonPair(IsParticle,false);  // no diquarks wanted
731     RightVector->push_back(new G4KineticTrack( << 484       quark = QuarkPair.second;
                                                   >> 485       LeftHadron=hadronizer->Build(QuarkPair.first, string->GetLeftParton());
                                                   >> 486     }
732                                                   487 
733     return true;                               << 488     RightHadron = hadronizer->Build(string->GetRightParton(), quark);
734 }                                              << 
735                                                   489 
736 //-------------------------------------------- << 490     //... repeat procedure, if mass of cluster is too low to produce hadrons
                                                   >> 491     //... ClusterMassCut = 0.15*GeV model parameter
                                                   >> 492     if ( quark->GetParticleSubType()== "quark" ) {ClusterMassCut = 0.;}
                                                   >> 493     else {ClusterMassCut = ClusterMass;}
                                                   >> 494   
                                                   >> 495   } while ( (ResidualMass <= LeftHadron->GetPDGMass() + RightHadron->GetPDGMass() + ClusterMassCut)
                                                   >> 496             && ++loopCounter < maxNumberOfLoops );  /* Loop checking, 07.08.2015, A.Ribon */
737                                                   497 
738 void G4QGSMFragmentation::Sample4Momentum(G4Lo << 498   if ( loopCounter >= maxNumberOfLoops ) {
739                                           G4Lo << 499     return false;
740 {                                              << 500   }
741     #ifdef debug_QGSMfragmentation             << 
742     G4cout<<"Sample4Momentum Last------------- << 
743     G4cout<<"  StrMass "<<InitialMass<<" Mass1 << 
744     G4cout<<"  SumMass "<<Mass+AntiMass<<G4end << 
745     #endif                                     << 
746                                                   501 
747     G4double r_val = sqr(InitialMass*InitialMa << 502   //... compute hadron momenta and energies   
748     G4double Pabs = (r_val > 0.)? std::sqrt(r_ << 503   G4LorentzVector  LeftMom, RightMom;
                                                   >> 504   G4ThreeVector    Pos;
                                                   >> 505   Sample4Momentum(&LeftMom , LeftHadron->GetPDGMass() , 
                                                   >> 506                   &RightMom, RightHadron->GetPDGMass(), ResidualMass);
                                                   >> 507   LeftMom.boost(ClusterVel);
                                                   >> 508   RightMom.boost(ClusterVel);
749                                                   509 
750     //... sample unit vector                   << 510   #ifdef debug_QGSMfragmentation
751     G4double pz = 1. - 2.*G4UniformRand();     << 511   G4cout<<LeftHadron->GetParticleName()<<" "<<RightHadron->GetParticleName()<<G4endl;
752     G4double st     = std::sqrt(1. - pz * pz)* << 512   G4cout<<"Left  Hadrom P M "<<LeftMom<<" "<<LeftMom.mag()<<G4endl;
753     G4double phi    = 2.*pi*G4UniformRand();   << 513   G4cout<<"Right Hadrom P M "<<RightMom<<" "<<RightMom.mag()<<G4endl;
754     G4double px = st*std::cos(phi);            << 514   #endif
755     G4double py = st*std::sin(phi);            << 515 
756     pz *= Pabs;                                << 516   LeftVector->push_back(new G4KineticTrack(LeftHadron, 0, Pos, LeftMom));
757                                                << 517   RightVector->push_back(new G4KineticTrack(RightHadron, 0, Pos, RightMom));
758     Mom->setPx(px); Mom->setPy(py); Mom->setPz << 
759     Mom->setE(std::sqrt(Pabs*Pabs + Mass*Mass) << 
760                                                   518 
761     AntiMom->setPx(-px); AntiMom->setPy(-py);  << 519   return true;
762     AntiMom->setE (std::sqrt(Pabs*Pabs + AntiM << 
763 }                                                 520 }
764                                                   521 
765 //--------------------------------------------    522 //----------------------------------------------------------------------------------------------------------
766                                                   523 
767 void G4QGSMFragmentation::SetFFq2q()  // q-> q << 524 G4bool G4QGSMFragmentation::IsFragmentable(const G4FragmentingString * const string)
768 {                                                 525 {
769   for (G4int i=0; i < 5; i++) {                << 526   return sqr(FragmentationMass(string)+MassCut) < string->Mass2();
770     FFq2q[i][0][0] = 2.0 ; FFq2q[i][0][1] = -a << 
771     FFq2q[i][1][0] = 2.0 ; FFq2q[i][1][1] = -a << 
772     FFq2q[i][2][0] = 1.0 ; FFq2q[i][2][1] = -a << 
773     FFq2q[i][3][0] = 1.0 ; FFq2q[i][3][1] = -a << 
774     FFq2q[i][4][0] = 1.0 ; FFq2q[i][4][1] = -a << 
775   }                                            << 
776 }                                                 527 }
777                                                   528 
778 //--------------------------------------------    529 //----------------------------------------------------------------------------------------------------------
779                                                   530 
780 void G4QGSMFragmentation::SetFFq2qq()  // q->  << 531 G4bool G4QGSMFragmentation::StopFragmenting(const G4FragmentingString * const string)
781 {                                                 532 {
782   for (G4int i=0; i < 5; i++) {                << 533   return sqr(FragmentationMass(string,&G4HadronBuilder::BuildHighSpin)+MassCut) >
783     FFq2qq[i][ 0][0] = 0.0 ; FFq2qq[i][ 0][1]  << 534          string->Get4Momentum().mag2();
784     FFq2qq[i][ 1][0] = 0.0 ; FFq2qq[i][ 1][1]  << 
785     FFq2qq[i][ 2][0] = 0.0 ; FFq2qq[i][ 2][1]  << 
786     FFq2qq[i][ 3][0] = 0.0 ; FFq2qq[i][ 3][1]  << 
787     FFq2qq[i][ 4][0] = 0.0 ; FFq2qq[i][ 4][1]  << 
788     FFq2qq[i][ 5][0] = 0.0 ; FFq2qq[i][ 5][1]  << 
789     FFq2qq[i][ 6][0] = 0.0 ; FFq2qq[i][ 6][1]  << 
790     FFq2qq[i][ 7][0] = 0.0 ; FFq2qq[i][ 7][1]  << 
791     FFq2qq[i][ 8][0] = 0.0 ; FFq2qq[i][ 8][1]  << 
792     FFq2qq[i][ 9][0] = 0.0 ; FFq2qq[i][ 9][1]  << 
793     FFq2qq[i][10][0] = 0.0 ; FFq2qq[i][10][1]  << 
794     FFq2qq[i][11][0] = 0.0 ; FFq2qq[i][11][1]  << 
795     FFq2qq[i][12][0] = 0.0 ; FFq2qq[i][12][1]  << 
796     FFq2qq[i][13][0] = 0.0 ; FFq2qq[i][13][1]  << 
797     FFq2qq[i][14][0] = 0.0 ; FFq2qq[i][14][1]  << 
798   }                                            << 
799 }                                                 535 }
800                                                   536 
801 //--------------------------------------------    537 //----------------------------------------------------------------------------------------------------------
802                                                   538 
803 void G4QGSMFragmentation::SetFFqq2q()  // q1q2 << 539 void G4QGSMFragmentation::Sample4Momentum(G4LorentzVector* Mom    , G4double Mass    , 
                                                   >> 540                                           G4LorentzVector* AntiMom, G4double AntiMass, G4double InitialMass) 
804 {                                                 541 {
805   for (G4int i=0; i < 15; i++) {               << 542   G4double r_val = sqr(InitialMass*InitialMass - Mass*Mass - AntiMass*AntiMass) - sqr(2.*Mass*AntiMass);
806     FFqq2q[i][0][0] = 2.0*(arho - an); FFqq2q[ << 543   G4double Pabs = (r_val > 0.)? std::sqrt(r_val)/(2.*InitialMass) : 0;
807     FFqq2q[i][1][0] = 2.0*(arho - an); FFqq2q[ << 
808     FFqq2q[i][2][0] = 2.0*(arho - an); FFqq2q[ << 
809     FFqq2q[i][3][0] = 2.0*(arho - an); FFqq2q[ << 
810     FFqq2q[i][4][0] = 2.0*(arho - an); FFqq2q[ << 
811   }                                            << 
812 }                                              << 
813                                                   544 
814 //-------------------------------------------- << 545   //... sample unit vector       
                                                   >> 546   G4double pz = 1. - 2.*G4UniformRand();  
                                                   >> 547   G4double st     = std::sqrt(1. - pz * pz)*Pabs;
                                                   >> 548   G4double phi    = 2.*pi*G4UniformRand();
                                                   >> 549   G4double px = st*std::cos(phi);
                                                   >> 550   G4double py = st*std::sin(phi);
                                                   >> 551   pz *= Pabs;
                                                   >> 552     
                                                   >> 553   Mom->setPx(px); Mom->setPy(py); Mom->setPz(pz);
                                                   >> 554   Mom->setE(std::sqrt(Pabs*Pabs + Mass*Mass));
815                                                   555 
816 void G4QGSMFragmentation::SetFFqq2qq()  // q1( << 556   AntiMom->setPx(-px); AntiMom->setPy(-py); AntiMom->setPz(-pz);
                                                   >> 557   AntiMom->setE (std::sqrt(Pabs*Pabs + AntiMass*AntiMass));
                                                   >> 558 }
                                                   >> 559     
                                                   >> 560 //*********************************************************************************************
                                                   >> 561 // Uzhi June 2014 Insert from G4ExcitedStringDecay.cc
                                                   >> 562 //-----------------------------------------------------------------------------
                                                   >> 563 
                                                   >> 564 G4ParticleDefinition *G4QGSMFragmentation::DiQuarkSplitup(G4ParticleDefinition* decay,
                                                   >> 565                                                           G4ParticleDefinition *&created)
817 {                                                 566 {
818   for (G4int i=0; i < 15; i++) {               << 567   //... can Diquark break or not?
819     FFqq2qq[i][0][0] = 0.  ;  FFqq2qq[i][0][1] << 568   if (G4UniformRand() < DiquarkBreakProb ){
820     FFqq2qq[i][1][0] = 0.  ;  FFqq2qq[i][1][1] << 569     //... Diquark break
821     FFqq2qq[i][2][0] = 0.  ;  FFqq2qq[i][2][1] << 570 
822     FFqq2qq[i][3][0] = 0.  ;  FFqq2qq[i][3][1] << 571     G4int stableQuarkEncoding = decay->GetPDGEncoding()/1000;
823     FFqq2qq[i][4][0] = 0.  ;  FFqq2qq[i][4][1] << 572     G4int decayQuarkEncoding = (decay->GetPDGEncoding()/100)%10;
                                                   >> 573 
                                                   >> 574     if (G4UniformRand() < 0.5)
                                                   >> 575     {
                                                   >> 576       G4int Swap = stableQuarkEncoding;
                                                   >> 577       stableQuarkEncoding = decayQuarkEncoding;
                                                   >> 578       decayQuarkEncoding = Swap;
                                                   >> 579     }
                                                   >> 580 
                                                   >> 581     G4int IsParticle=(decayQuarkEncoding>0) ? -1 : +1; // if we have a quark, we need antiquark)
                                                   >> 582 
                                                   >> 583     G4double StrSup=GetStrangeSuppress();  // for changing s-sbar production
                                                   >> 584     StrangeSuppress=0.41;                          // was 0.47
                                                   >> 585     pDefPair QuarkPair = CreatePartonPair(IsParticle,false);  // no diquarks wanted
                                                   >> 586     StrangeSuppress=StrSup;
                                                   >> 587 
                                                   >> 588     //... Build new Diquark
                                                   >> 589     G4int QuarkEncoding=QuarkPair.second->GetPDGEncoding();
                                                   >> 590     G4int i10  = std::max(std::abs(QuarkEncoding), std::abs(stableQuarkEncoding));
                                                   >> 591     G4int i20  = std::min(std::abs(QuarkEncoding), std::abs(stableQuarkEncoding));
                                                   >> 592     G4int spin = (i10 != i20 && G4UniformRand() <= 0.5)? 1 : 3;
                                                   >> 593     G4int NewDecayEncoding = -1*IsParticle*(i10 * 1000 + i20 * 100 + spin);
                                                   >> 594     created = FindParticle(NewDecayEncoding);
                                                   >> 595     G4ParticleDefinition * decayQuark=FindParticle(decayQuarkEncoding);
                                                   >> 596     G4ParticleDefinition * had=hadronizer->Build(QuarkPair.first, decayQuark);
                                                   >> 597 
                                                   >> 598     return had;
                                                   >> 599     //return hadronizer->Build(QuarkPair.first, decayQuark);
                                                   >> 600 
                                                   >> 601   } else {
                                                   >> 602     //... Diquark does not break
                                                   >> 603 
                                                   >> 604     G4int IsParticle=(decay->GetPDGEncoding()>0) ? +1 : -1;  // if we have a diquark, we need quark)
                                                   >> 605     G4double StrSup=GetStrangeSuppress();  // for changing s-sbar production
                                                   >> 606     StrangeSuppress=0.41; //0.41; 0.47
                                                   >> 607     pDefPair QuarkPair = CreatePartonPair(IsParticle,false);  // no diquarks wanted
                                                   >> 608     StrangeSuppress=StrSup;
                                                   >> 609 
                                                   >> 610     created = QuarkPair.second;
                                                   >> 611 
                                                   >> 612     G4ParticleDefinition * had=hadronizer->Build(QuarkPair.first, decay);
                                                   >> 613     return had;
                                                   >> 614     //return G4ParticleDefinition * had=hadronizer->Build(QuarkPair.first, decay);
824   }                                               615   }
825 }                                                 616 }
826                                                   617 
827                                                   618