Get information on spectators nucleons using TParticle::UniqueID()

diff --git a/THijing/AliGenHijing.cxx b/THijing/AliGenHijing.cxx
index 2a8e8b9b30fa777771104df2e563db9a4ff54746..41ccc49babaf07dee2bc87c450b9aa46a7738f5d 100644 (file)
--- a/THijing/AliGenHijing.cxx
+++ b/THijing/AliGenHijing.cxx
@@ -189,7 +189,7 @@ void AliGenHijing::Generate()
 //
   Int_t nt  = 0;
   Int_t jev = 0;
-  Int_t j, kf, ks, imo;
+  Int_t j, kf, ks, ksp, imo;
   kf = 0;
     
 
@@ -283,14 +283,15 @@ void AliGenHijing::Generate()
          Bool_t  selected             =  kTRUE;
          kf        = iparticle->GetPdgCode();
          ks        = iparticle->GetStatusCode();
+         ksp       = iparticle->GetUniqueID();
          
 // --------------------------------------------------------------------------
 // Count spectator neutrons and protons
-         if(ks == 0 || ks == 1){
+         if(ksp == 0 || ksp == 1){
              if(kf == kNeutron) fProjectileSpecn += 1;
              if(kf == kProton)  fProjectileSpecp += 1;
          }
-         else if(ks == 10 || ks == 11){
+         else if(ksp == 10 || ksp == 11){
              if(kf == kNeutron) fTargetSpecn += 1;
              if(kf == kProton)  fTargetSpecp += 1;
          }
@@ -298,8 +299,8 @@ void AliGenHijing::Generate()
 //         
          if (!fSelectAll) {
              selected = KinematicSelection(iparticle,0)&&SelectFlavor(kf);
-             if (!fSpectators && selected) selected = (ks != 0 && ks != 1 && ks != 10
-                                                       && ks != 11);
+             if (!fSpectators && selected) selected = (ksp != 0 && ksp != 1 && ksp != 10
+                                                       && ksp != 11);
          }
 //
 // Put particle on the stack if selected
@@ -605,8 +606,8 @@ Bool_t AliGenHijing::CheckTrigger()
        for (Int_t i = 0; i < np; i++) {
            TParticle* part = (TParticle*) fParticles->At(i);
            Int_t kf = part->GetPdgCode();
-           Int_t ks = part->GetStatusCode();
-           if (kf == 22 && ks == 40) {
+           Int_t ksp = part->GetUniqueID();
+           if (kf == 22 && ksp == 40) {
                Float_t phi = part->Phi();
                Float_t eta = part->Eta();
                if  (eta < fEtaMaxJet &&