Private path removed.

[u/mrichter/AliRoot.git] / PYTHIA6 / AliGenPythiaPlus.cxx

diff --git a/PYTHIA6/AliGenPythiaPlus.cxx b/PYTHIA6/AliGenPythiaPlus.cxx
index dcecd7b4261678ef9f05e62e32e47ca4159d45e3..35bf65020a3a97dd3f36af263a7275f21e3ae7c7 100644 (file)
--- a/PYTHIA6/AliGenPythiaPlus.cxx
+++ b/PYTHIA6/AliGenPythiaPlus.cxx
@@ -128,7 +128,7 @@ AliGenPythiaPlus::AliGenPythiaPlus():
 
 {
 // Default Constructor
-  SetEnergyCMS(5500.);
+  fEnergyCMS = 5500.;
   SetNuclei(0,0);
   if (!AliPythiaRndm::GetPythiaRandom()) 
       AliPythiaRndm::SetPythiaRandom(GetRandom());
@@ -217,7 +217,7 @@ AliGenPythiaPlus::AliGenPythiaPlus(AliPythiaBase* pythia)
 // semimuonic decay
 // structure function GRVHO
 //
-    SetEnergyCMS(5500.);
+    fEnergyCMS = 5500.;
     fName = "Pythia";
     fTitle= "Particle Generator using PYTHIA";
     SetForceDecay();
@@ -375,6 +375,9 @@ void AliGenPythiaPlus::Init()
        fParentSelect[1] =   421;
        fParentSelect[2] =   431;
        fParentSelect[3] =  4122;
+       fParentSelect[4] =  4232;
+       fParentSelect[5] =  4132;
+       fParentSelect[6] =  4332;
        fFlavorSelect    =  4;  
        break;
     case kPyD0PbPbMNR:
@@ -425,6 +428,7 @@ void AliGenPythiaPlus::Init()
        break;
     case kPyMbDefault:
     case kPyMb:
+    case kPyMbWithDirectPhoton:
     case kPyMbNonDiffr:
     case kPyMbMSEL1:
     case kPyJets:
@@ -525,8 +529,8 @@ void AliGenPythiaPlus::Generate()
            }
            fNpartons = fPythia->GetNumberOfParticles();
        } else {
-           printf("Loading Event %d\n",AliRunLoader::GetRunLoader()->GetEventNumber());
-           fRL->GetEvent(AliRunLoader::GetRunLoader()->GetEventNumber());
+           printf("Loading Event %d\n",AliRunLoader::Instance()->GetEventNumber());
+           fRL->GetEvent(AliRunLoader::Instance()->GetEventNumber());
            fPythia->SetNumberOfParticles(0);
            fPythia->LoadEvent(fRL->Stack(), 0 , 1);
            fPythia->EditEventList(21);
@@ -580,6 +584,7 @@ void AliGenPythiaPlus::Generate()
        Int_t nTkbles = 0;   // Trackable particles
        if (fProcess != kPyMbDefault && 
            fProcess != kPyMb && 
+           fProcess != kPyMbWithDirectPhoton && 
            fProcess != kPyJets && 
            fProcess != kPyDirectGamma &&
            fProcess != kPyMbNonDiffr  &&
@@ -905,23 +910,45 @@ Int_t  AliGenPythiaPlus::GenerateMB()
     // Check if there is a ccbar or bbbar pair with at least one of the two
     // in fYMin < y < fYMax
     if (fProcess == kPyCharmppMNRwmi || fProcess == kPyBeautyppMNRwmi) {
-      TParticle *hvq;
+      TParticle *partCheck;
+      TParticle *mother;
       Bool_t  theQ=kFALSE,theQbar=kFALSE,inYcut=kFALSE;
-      Float_t yQ;  
-      Int_t   pdgQ;
+      Bool_t  theChild=kFALSE;
+      Float_t y;  
+      Int_t   pdg,mpdg,mpdgUpperFamily;
       for(i=0; i<np; i++) {
-       hvq = (TParticle*)fParticles.At(i);
-       pdgQ = hvq->GetPdgCode();  
-       if(TMath::Abs(pdgQ) != fFlavorSelect) continue; 
-       if(pdgQ>0) { theQ=kTRUE; } else { theQbar=kTRUE; }
-       yQ = 0.5*TMath::Log((hvq->Energy()+hvq->Pz()+1.e-13)/
-                           (hvq->Energy()-hvq->Pz()+1.e-13));
-       if(yQ>fYMin && yQ<fYMax) inYcut=kTRUE;
+       partCheck = (TParticle*)fParticles.At(i);
+       pdg = partCheck->GetPdgCode();  
+       if(TMath::Abs(pdg) == fFlavorSelect) { // quark  
+         if(pdg>0) { theQ=kTRUE; } else { theQbar=kTRUE; }
+         y = 0.5*TMath::Log((partCheck->Energy()+partCheck->Pz()+1.e-13)/
+                            (partCheck->Energy()-partCheck->Pz()+1.e-13));
+         if(y>fYMin && y<fYMax) inYcut=kTRUE;
+       }
+
+       if(fCutOnChild && TMath::Abs(pdg) == fPdgCodeParticleforAcceptanceCut) {
+         Int_t mi = partCheck->GetFirstMother() - 1;
+         if(mi<0) continue;
+         mother = (TParticle*)fParticles.At(mi);
+         mpdg=TMath::Abs(mother->GetPdgCode());
+         mpdgUpperFamily=(mpdg>1000 ? mpdg+1000 : mpdg+100); // keep e from c from b
+         if ( ParentSelected(mpdg) || 
+             (fFlavorSelect==5 && ParentSelected(mpdgUpperFamily))) {
+           if (KinematicSelection(partCheck,1)) {
+             theChild=kTRUE;
+           }
+         }
+       }
       }
-      if (!theQ || !theQbar || !inYcut) {
+      if (!theQ || !theQbar || !inYcut) { // one of the c/b conditions not satisfied
        delete[] pParent;
        return 0;
       }
+      if (fCutOnChild && !theChild) { // one of the child conditions not satisfied
+       delete[] pParent;
+       return 0;       
+      }
+
     }
 
     //Introducing child cuts in case kPyW, kPyZ, kPyMb, and kPyMbNonDiff
@@ -929,6 +956,7 @@ Int_t  AliGenPythiaPlus::GenerateMB()
          fProcess == kPyZ ||
          fProcess == kPyMbDefault ||
          fProcess == kPyMb ||
+         fProcess == kPyMbWithDirectPhoton ||
          fProcess == kPyMbNonDiffr)  
         && (fCutOnChild == 1) ) {
       if ( !CheckKinematicsOnChild() ) {
@@ -984,7 +1012,7 @@ Int_t  AliGenPythiaPlus::GenerateMB()
                if (fStack) {
                    particle = fStack->Particle(nt);
                } else {
-                   particle = gAlice->Stack()->Particle(nt);
+                   particle = AliRunLoader::Instance()->Stack()->Particle(nt);
                }
 //             particle->SetFirstDaughter(fPythia->GetK(2, i));
 //             particle->SetLastDaughter(fPythia->GetK(3, i));