X-Git-Url: http://git.uio.no/git/?a=blobdiff_plain;f=STEER%2FAliMCParticle.h;h=092b36e966521474056cdaff3e3b9f706777edf8;hb=0baf4718d74a902abf0d39644356e8ac3c6b104a;hp=0b1b3ccb1eeff3243cefb9bc68bf3d46cc1ebc7c;hpb=c683ddc2e4bdcb167ed5e7e4c43ea8b79d27df7c;p=u%2Fmrichter%2FAliRoot.git

diff --git a/STEER/AliMCParticle.h b/STEER/AliMCParticle.h
index 0b1b3ccb1ee..092b36e9665 100644
--- a/STEER/AliMCParticle.h
+++ b/STEER/AliMCParticle.h
@@ -21,8 +21,8 @@
 class AliMCParticle: public AliVParticle {
 public:
     AliMCParticle();
-    AliMCParticle(TParticle* part, TRefArray* rarray = 0);
-    virtual ~AliMCParticle() {}
+    AliMCParticle(TParticle* part, TRefArray* rarray = 0, Int_t label=-1);
+    virtual ~AliMCParticle();
     AliMCParticle(const AliMCParticle& mcPart); 
     AliMCParticle& operator=(const AliMCParticle& mcPart);
     
@@ -43,25 +43,29 @@ public:
     virtual Double_t Zv() const;
     virtual Bool_t   XvYvZv(Double_t x[3]) const;  
 
-    virtual Double_t E()         const;
-    virtual Double_t M()         const;
+    virtual Double_t E()          const;
+    virtual Double_t M()          const;
     
-    virtual Double_t Eta()       const;
-    virtual Double_t Y()         const;
-    
-    virtual Short_t Charge()     const;
+    virtual Double_t Eta()        const;
+    virtual Double_t Y()          const;
     
+    virtual Short_t Charge()      const;
+
+    virtual Int_t      Label()    const;
+    virtual TParticle* Particle() const  {return fParticle;}
+	    
     // PID
     virtual const Double_t *PID() const {return 0;} // return PID object (to be defined, still)
 
     // Track References
     Int_t              GetNumberOfTrackReferences() {return fNTrackRef;}
     AliTrackReference* GetTrackReference(Int_t i)
-	{return dynamic_cast<AliTrackReference*>((*fTrackReferences)[i]);}
+      {return dynamic_cast<AliTrackReference*>((*fTrackReferences)[i]);}
  private:
     TParticle *fParticle;             // The wrapped TParticle
     TRefArray *fTrackReferences;      // Reference array to track references
     Int_t      fNTrackRef;            // Number of track references
+    Int_t      fLabel;                // fParticle Label in the Stack
     
   ClassDef(AliMCParticle,0)  // AliVParticle realisation for MCParticles
 };
@@ -96,8 +100,9 @@ inline Double_t AliMCParticle::M()         const
 inline Double_t AliMCParticle::Y()         const 
 {
     Double_t e  = E();
-    Double_t pz = TMath::Abs(Pz());
-    if (e != pz) { 
+    Double_t pz = Pz();
+    
+    if (e != TMath::Abs(pz)) { 
 	return 0.5*TMath::Log((e+pz)/(e-pz));
     } else { 
 	return -999.;
@@ -114,4 +119,6 @@ inline Short_t AliMCParticle::Charge()     const
     }
 }
 
+inline Int_t AliMCParticle::Label()       const {return fLabel;}
+
 #endif