adding AliESDtrackCuts which provides the possibility to cut in quality parameters,

track-to-vertex and kinematic parameters.

diff --git a/PWG0/esdTrackCuts/AliESDtrackCuts.h b/PWG0/esdTrackCuts/AliESDtrackCuts.h
new file mode 100644 (file)
index 0000000..46dcbb1
--- /dev/null
+++ b/PWG0/esdTrackCuts/AliESDtrackCuts.h
@@ -0,0 +1,157 @@
+#ifndef ALIESDTRACKCUTS_H
+#define ALIESDTRACKCUTS_H
+
+//**************************************************************** 
+//
+//  Class for handling of ESD track cuts
+//
+//  TODO: 
+//  - add functionality to save and load cuts
+//  - fix the n sigma cut so it is really a n sigma cut
+//  - add different ways to make track to vertex cut
+//  - add histograms for kinematic cut variables?
+//  - upper and lower cuts for all (non-boolean) cuts
+//  - update print method
+//  - is there a smarter way to manage the cuts?
+//
+
+#ifndef ROOT_TObject
+#include "TObject.h"
+#endif
+#ifndef ROOT_TTree
+#include "TTree.h"
+#endif
+#ifndef ROOT_TH2
+#include "TH2.h"
+#endif
+
+#include "AliESD.h"
+#include "AliESDtrack.h"
+#include "AliLog.h"
+
+class AliESDtrackCuts : public TObject 
+{
+protected:
+
+  //######################################################
+  // esd track quality cuts
+  static const Int_t fNCuts = 21;
+  Char_t*            fCutNames[21];
+
+  Int_t   fCut_MinNClusterTPC;        // min number of tpc clusters
+  Int_t   fCut_MinNClusterITS;        // min number of its clusters  
+
+  Float_t fCut_MaxChi2PerClusterTPC;  // max tpc fit chi2 per tpc cluster
+  Float_t fCut_MaxChi2PerClusterITS;  // max its fit chi2 per its cluster
+
+  Float_t fCut_MaxC11;                // max resolutions of covariance matrix diag. elements
+  Float_t fCut_MaxC22;
+  Float_t fCut_MaxC33;
+  Float_t fCut_MaxC44;
+  Float_t fCut_MaxC55;
+ 
+  Bool_t  fCut_AcceptKinkDaughters;   // accepting kink daughters?
+  Bool_t  fCut_RequireTPCRefit;       // require TPC refit
+  Bool_t  fCut_RequireITSRefit;       // require ITS refit
+  
+  // track to vertex cut
+  Float_t fCut_NsigmaToVertex;        // max number of estimated sigma from track-to-vertex
+  Bool_t  fCut_SigmaToVertexRequired; // cut track if sigma from track-to-vertex could not be calculated
+
+  // esd kinematics cuts
+  Float_t fPMin,   fPMax;             // definition of the range of the P
+  Float_t fPtMin,  fPtMax;            // definition of the range of the Pt
+  Float_t fPxMin,  fPxMax;            // definition of the range of the Px
+  Float_t fPyMin,  fPyMax;            // definition of the range of the Py
+  Float_t fPzMin,  fPzMax;            // definition of the range of the Pz
+  Float_t fEtaMin, fEtaMax;           // definition of the range of the eta
+  Float_t fRapMin, fRapMax;           // definition of the range of the y
+
+  //######################################################
+  // array of accepted ESD tracks
+
+  TObjArray* fAcceptedTracks; // List of accepted esd tracks after cuts
+
+
+  //######################################################
+  // diagnostics histograms
+  Bool_t fHistogramsOn;
+
+  TH1F** hNClustersITS;
+  TH1F** hNClustersTPC;
+  
+  TH1F** hChi2PerClusterITS;
+  TH1F** hChi2PerClusterTPC;
+
+  TH1F** hC11;
+  TH1F** hC22;
+  TH1F** hC33;
+  TH1F** hC44;
+  TH1F** hC55;
+
+  TH1F** hDXY;
+  TH1F** hDZ;
+  TH2F** hDXYvsDZ;
+
+  TH1F** hDXYNormalized;
+  TH1F** hDZNormalized;
+  TH2F** hDXYvsDZNormalized;
+
+  TH1F*  hCutStatistics;
+  TH2F*  hCutCorrelation;
+  
+
+  // dummy array
+  Int_t  fIdxInt[200];
+
+public:
+  AliESDtrackCuts();
+  
+  Bool_t AcceptTrack(AliESDtrack* esdTrack);
+  Bool_t AcceptTrack(AliESDtrack* esdTrack, AliESDVertex* esdVtx, Double_t field);
+  Bool_t AcceptTrack(AliESDtrack* esdTrack, Double_t* vtx, Double_t* vtx_res, Double_t field);
+  Bool_t AcceptTrack(AliESDtrack* esdTrack, AliESDVertex* esdVtx, Float_t field)
+    {return AcceptTrack(esdTrack,esdVtx, Double_t(field));}
+
+  TObjArray* GetAcceptedTracks(AliESD* esd);
+
+  //######################################################
+  // track quality cut setters  
+  void SetMinNClustersTPC(Int_t min=-1)          {fCut_MinNClusterTPC=min;}
+  void SetMinNClustersITS(Int_t min=-1)          {fCut_MinNClusterITS=min;}
+  void SetMaxChi2PerClusterTPC(Float_t max=1e99) {fCut_MaxChi2PerClusterTPC=max;}
+  void SetMaxChi2PerClusterITS(Float_t max=1e99) {fCut_MaxChi2PerClusterITS=max;}
+  void SetRequireTPCRefit(Bool_t b=kFALSE)       {fCut_RequireTPCRefit=b;}
+  void SetRequireITSRefit(Bool_t b=kFALSE)       {fCut_RequireITSRefit=b;}
+  void SetAcceptKingDaughters(Bool_t b=kFALSE)   {fCut_AcceptKinkDaughters=b;}
+  void SetMaxCovDiagonalElements(Float_t c1=1e99, Float_t c2=1e99, Float_t c3=1e99, Float_t c4=1e99, Float_t c5=1e99) 
+    {fCut_MaxC11=c1; fCut_MaxC22=c2; fCut_MaxC33=c3; fCut_MaxC44=c4; fCut_MaxC55=c5;}
+  
+  // track to vertex cut setters
+  void SetMinNsigmaToVertex(Float_t sigma=1e99)       {fCut_NsigmaToVertex = sigma;}
+  void SetRequireSigmaToVertex(Bool_t b=kTRUE )       {fCut_SigmaToVertexRequired = b;}
+  
+  // track kinmatic cut setters  
+  void SetPRange(Float_t r1=0, Float_t r2=1e99)       {fPMin=r1;   fPMax=r2;}
+  void SetPtRange(Float_t r1=0, Float_t r2=1e99)      {fPtMin=r1;  fPtMax=r2;}
+  void SetPxRange(Float_t r1=-1e99, Float_t r2=1e99)  {fPxMin=r1;  fPxMax=r2;}
+  void SetPyRange(Float_t r1=-1e99, Float_t r2=1e99)  {fPyMin=r1;  fPyMax=r2;}
+  void SetPzRange(Float_t r1=-1e99, Float_t r2=1e99)  {fPzMin=r1;  fPzMax=r2;}
+  void SetEtaRange(Float_t r1=-1e99, Float_t r2=1e99) {fEtaMin=r1; fEtaMax=r2;}
+  void SetRapRange(Float_t r1=-1e99, Float_t r2=1e99) {fRapMin=r1; fRapMax=r2;}
+
+  //######################################################
+  void SetHistogramsOn(Bool_t b=kFALSE) {fHistogramsOn = b;}
+  void DefineHistograms(Int_t color=1);
+  void SaveHistograms(Char_t* dir="track_selection");
+  
+  void Print();
+
+  // void SaveQualityCuts(Char_t* file)
+  // void LoadQualityCuts(Char_t* file)
+
+  ClassDef(AliESDtrackCuts,0)
+};
+
+
+#endif