Added extra branch containing cosine of PA of V0 wrt to cascade vertex.

---David

diff --git a/PWGLF/STRANGENESS/Cascades/AliAnalysisTaskExtractCascade.cxx b/PWGLF/STRANGENESS/Cascades/AliAnalysisTaskExtractCascade.cxx
index 9567689a3fa51420c94934709de7ce601195cda7..0853619ebe9df1828d4902dc275749ac37e0eb86 100644 (file)
--- a/PWGLF/STRANGENESS/Cascades/AliAnalysisTaskExtractCascade.cxx
+++ b/PWGLF/STRANGENESS/Cascades/AliAnalysisTaskExtractCascade.cxx
@@ -128,6 +128,7 @@ AliAnalysisTaskExtractCascade::AliAnalysisTaskExtractCascade()
    fTreeCascVarCascRadius(0),
    fTreeCascVarV0Mass(0),
    fTreeCascVarV0CosPointingAngle(0),
+   fTreeCascVarV0CosPointingAngleSpecial(0),
    fTreeCascVarV0Radius(0),
    fTreeCascVarLeastNbrClusters(0),
    fTreeCascVarMultiplicity(0),
@@ -236,6 +237,7 @@ AliAnalysisTaskExtractCascade::AliAnalysisTaskExtractCascade(const char *name)
    fTreeCascVarCascRadius(0),
    fTreeCascVarV0Mass(0),
    fTreeCascVarV0CosPointingAngle(0),
+   fTreeCascVarV0CosPointingAngleSpecial(0),
    fTreeCascVarV0Radius(0),
    fTreeCascVarLeastNbrClusters(0),
    fTreeCascVarMultiplicity(0),
@@ -403,6 +405,7 @@ void AliAnalysisTaskExtractCascade::UserCreateOutputObjects()
 /*17*/         fTreeCascade->Branch("fTreeCascVarCascRadius",&fTreeCascVarCascRadius,"fTreeCascVarCascRadius/F");
 /*18*/         fTreeCascade->Branch("fTreeCascVarV0Mass",&fTreeCascVarV0Mass,"fTreeCascVarV0Mass/F");
 /*19*/         fTreeCascade->Branch("fTreeCascVarV0CosPointingAngle",&fTreeCascVarV0CosPointingAngle,"fTreeCascVarV0CosPointingAngle/F");
+/*19*/         fTreeCascade->Branch("fTreeCascVarV0CosPointingAngleSpecial",&fTreeCascVarV0CosPointingAngleSpecial,"fTreeCascVarV0CosPointingAngleSpecial/F");
 /*20*/         fTreeCascade->Branch("fTreeCascVarV0Radius",&fTreeCascVarV0Radius,"fTreeCascVarV0Radius/F");
 /*21*/         fTreeCascade->Branch("fTreeCascVarLeastNbrClusters",&fTreeCascVarLeastNbrClusters,"fTreeCascVarLeastNbrClusters/I");
 //-----------MULTIPLICITY-INFO--------------------
@@ -990,6 +993,7 @@ void AliAnalysisTaskExtractCascade::UserExec(Option_t *)
          Double_t lDcaPosToPrimVertexXi  = -1.;
          Double_t lDcaNegToPrimVertexXi  = -1.;
          Double_t lV0CosineOfPointingAngleXi = -1. ;
+         Double_t lV0CosineOfPointingAngleXiSpecial = -1. ;
          Double_t lPosV0Xi[3] = { -1000. , -1000., -1000. }; // Position of VO coming from cascade
          Double_t lV0RadiusXi = -1000.0;
          Double_t lV0quality  = 0.;
@@ -1131,6 +1135,10 @@ void AliAnalysisTaskExtractCascade::UserExec(Option_t *)
          lV0CosineOfPointingAngleXi    = xi->GetV0CosineOfPointingAngle( lBestPrimaryVtxPos[0],
                                                                            lBestPrimaryVtxPos[1],
                                                                            lBestPrimaryVtxPos[2] );
+    //Modification: V0 CosPA wrt to Cascade decay vertex
+         lV0CosineOfPointingAngleXiSpecial     = xi->GetV0CosineOfPointingAngle( lPosXi[0],
+                                                                           lPosXi[1],
+                                                                           lPosXi[2] );
 
          lDcaV0ToPrimVertexXi          = xi->GetD( lBestPrimaryVtxPos[0], 
                                                      lBestPrimaryVtxPos[1], 
@@ -1237,6 +1245,7 @@ void AliAnalysisTaskExtractCascade::UserExec(Option_t *)
 /*14*/         fTreeCascVarCascRadius = lXiRadius;
 /*15*/         fTreeCascVarV0Mass = lInvMassLambdaAsCascDghter;
 /*16*/         fTreeCascVarV0CosPointingAngle = lV0CosineOfPointingAngleXi;
+/*16*/         fTreeCascVarV0CosPointingAngleSpecial = lV0CosineOfPointingAngleXiSpecial;
 /*17*/         fTreeCascVarV0Radius = lV0RadiusXi;
 /*20*/         fTreeCascVarLeastNbrClusters = leastnumberofclusters;
 /*21*/         fTreeCascVarMultiplicity = lMultiplicity; //multiplicity, whatever that may be

diff --git a/PWGLF/STRANGENESS/Cascades/AliAnalysisTaskExtractCascade.h b/PWGLF/STRANGENESS/Cascades/AliAnalysisTaskExtractCascade.h
index 5f09f2c4207b2fca229c971651abcf8a5b5a888a..44fc4c1e5c9d3d784a8fc00fedd0f0f1fb06210a 100644 (file)
--- a/PWGLF/STRANGENESS/Cascades/AliAnalysisTaskExtractCascade.h
+++ b/PWGLF/STRANGENESS/Cascades/AliAnalysisTaskExtractCascade.h
@@ -110,6 +110,7 @@ class AliAnalysisTaskExtractCascade : public AliAnalysisTaskSE {
   Float_t fTreeCascVarCascRadius;           //!
   Float_t fTreeCascVarV0Mass;               //!
   Float_t fTreeCascVarV0CosPointingAngle;   //!
+  Float_t fTreeCascVarV0CosPointingAngleSpecial;   //!
   Float_t fTreeCascVarV0Radius;             //!
   Int_t   fTreeCascVarLeastNbrClusters;     //!
   Int_t   fTreeCascVarMultiplicity;         //!