Store number of produced particles in header.

diff --git a/EVGEN/AliGenHIJINGpara.cxx b/EVGEN/AliGenHIJINGpara.cxx
index 30cfb02248c95d24723713f67bcd4daeedf52185..65f33b3936e08e4c0f2e88f2e6450a6064508891 100644 (file)
--- a/EVGEN/AliGenHIJINGpara.cxx
+++ b/EVGEN/AliGenHIJINGpara.cxx
@@ -175,6 +175,7 @@ AliGenHIJINGpara::AliGenHIJINGpara()
     fETAkac  =  0;
     fDecayer =  0;
     fNt      = -1;
+    fNpartProd = 0;
     SetCutVertexZ();
     SetPtRange();
     SetPi0Decays();
@@ -195,6 +196,7 @@ AliGenHIJINGpara::AliGenHIJINGpara(Int_t npart)
     fETAkac  =  0;
     fDecayer =  0;
     fNt      = -1;
+    fNpartProd = npart;
     SetCutVertexZ();
     SetPtRange();
     SetPi0Decays();
@@ -360,7 +362,7 @@ void AliGenHIJINGpara::Generate()
                        TMath::Sqrt(-2*TMath::Log(random[2*j+1]));
                }
            }
-           
+
            if (fAnalog == 0) { 
                wgt = fParentWeight;
            } else {
@@ -375,7 +377,9 @@ void AliGenHIJINGpara::Generate()
                KeepTrack(fNt);
                DecayPi0(origin, p);
            } else {
+      // printf("fNt %d", fNt);
                PushTrack(fTrackIt,-1,part,p,origin,polar,0,kPPrimary,fNt,wgt);
+
                KeepTrack(fNt);
            }
 
@@ -389,6 +393,7 @@ void AliGenHIJINGpara::Generate()
     AliGenEventHeader* header = new AliGenEventHeader("HIJINGparam");
 // Event Vertex
     header->SetPrimaryVertex(eventVertex);
+    header->SetNProduced(fNpartProd);
     gAlice->SetGenEventHeader(header); 
 }
 
@@ -417,6 +422,7 @@ void AliGenHIJINGpara::DecayPi0(Float_t* orig, Float_t * p)
 //
     Float_t polar[3] = {0., 0., 0.};
     Int_t np = fDecayer->ImportParticles(particles);
+    fNpartProd += (np-1);
     Int_t nt;    
     for (Int_t i = 1; i < np; i++)
     {

diff --git a/EVGEN/AliGenHIJINGpara.h b/EVGEN/AliGenHIJINGpara.h
index 2164880d47fd6bd6986a15b7517211acea31cbcc..67763a6883d203050eae0c335ec5bed1fe2551ef 100644 (file)
--- a/EVGEN/AliGenHIJINGpara.h
+++ b/EVGEN/AliGenHIJINGpara.h
@@ -34,6 +34,7 @@ class AliGenHIJINGpara : public AliGenerator
   
  protected:
   Int_t   fNt;          // CurrentTrack;
+  Int_t   fNpartProd;   // Total number of particles produced  
   Bool_t  fPi0Decays;   // Flag for pi0 decays
   Float_t fPtWgtPi;     // pt weight for pions
   Float_t fPtWgtKa;     // pt weight for kaons