[u/mrichter/AliRoot.git] / ANALYSIS / AliESDtrackCuts.h

//
//  Class for handling of ESD track cuts.
//
//  The class manages a number of track quality cuts, a
//  track-to-vertex cut and a number of kinematic cuts. Two methods
//  can be used to figure out if an ESD track survives the cuts:
//  AcceptTrack which takes a single AliESDtrack as argument and
//  returns kTRUE/kFALSE or GetAcceptedTracks which takes an AliESDEvent
//  object and returns an TObjArray (of AliESDtracks) with the tracks
//  in the ESD that survived the cuts.
//
//
//  TODO:
//  - add functionality to save and load cuts
//  - add histograms for kinematic cut variables?
//  - upper and lower cuts for all (non-boolean) cuts
//  - update print method
//  - put comments to each variable
//

#ifndef ALIESDTRACKCUTS_H
#define ALIESDTRACKCUTS_H

#include <TString.h>

#include "AliAnalysisCuts.h"

class AliESDEvent;
class AliESDtrack;
class AliLog;
class TTree;
class TH1;
class TH1F;
class TH2F;
class TF1;
class TCollection;
class TFormula;

class AliESDtrackCuts : public AliAnalysisCuts
{
public:
  enum ITSClusterRequirement { kOff = 0, kNone, kAny, kFirst, kOnlyFirst, kSecond, kOnlySecond, kBoth };
  enum Detector { kSPD = 0, kSDD, kSSD };
  enum MultEstTrackCuts { kMultEstTrackCutGlobal = 0, kMultEstTrackCutITSSA, kMultEstTrackCutDCAwSPD, kMultEstTrackCutDCAwoSPD, kNMultEstTrackCuts /* this must always be the last */};
  enum MultEstTrackType { kTrackletsITSTPC = 0, kTrackletsITSSA, kTracklets };
  enum VertexType { kVertexTracks = 0x1, kVertexSPD = 0x2, kVertexTPC = 0x4 };
  
  AliESDtrackCuts(const Char_t* name = "AliESDtrackCuts", const Char_t* title = "");
  virtual ~AliESDtrackCuts();

  virtual Bool_t IsSelected(TObject* obj)
       {return AcceptTrack((AliESDtrack*)obj);}
  virtual Bool_t IsSelected(TList* /*list*/) {return kTRUE;}

  Bool_t AcceptTrack(const AliESDtrack* esdTrack);
  TObjArray* GetAcceptedTracks(const AliESDEvent* esd, Bool_t bTPC = kFALSE);
  Int_t CountAcceptedTracks(const AliESDEvent* const esd);
  
  static Int_t GetReferenceMultiplicity(const AliESDEvent* esd, Bool_t tpcOnly);
  static Int_t GetReferenceMultiplicity(const AliESDEvent* esd, MultEstTrackType trackType = kTrackletsITSTPC, Float_t etaRange = 0.5);
  static AliESDtrackCuts* GetMultEstTrackCuts(MultEstTrackCuts cut);

  static AliESDtrack* GetTPCOnlyTrack(const AliESDEvent* esd, Int_t iTrack);
  
  // Standard cut definitions
  static AliESDtrackCuts* GetStandardTPCOnlyTrackCuts();
  static AliESDtrackCuts* GetStandardITSTPCTrackCuts2009(Bool_t selPrimaries=kTRUE);
  static AliESDtrackCuts* GetStandardITSTPCTrackCuts2010(Bool_t selPrimaries=kTRUE, Int_t clusterCut=0);
  static AliESDtrackCuts* GetStandardITSTPCTrackCuts2011(Bool_t selPrimaries=kTRUE, Int_t clusterCut=1);
  static AliESDtrackCuts* GetStandardITSSATrackCuts2009(Bool_t selPrimaries=kTRUE, Bool_t useForPid=kTRUE);
  static AliESDtrackCuts* GetStandardITSSATrackCuts2010(Bool_t selPrimaries=kTRUE, Bool_t useForPid=kTRUE);
  static AliESDtrackCuts* GetStandardITSSATrackCutsPbPb2010(Bool_t selPrimaries=kTRUE, Bool_t useForPid=kTRUE);
  static AliESDtrackCuts* GetStandardITSPureSATrackCuts2009(Bool_t selPrimaries=kTRUE, Bool_t useForPid=kTRUE);
  static AliESDtrackCuts* GetStandardITSPureSATrackCuts2010(Bool_t selPrimaries=kTRUE, Bool_t useForPid=kTRUE);
  // Standard cuts for daughter tracks
  static AliESDtrackCuts* GetStandardV0DaughterCuts();

  virtual Long64_t Merge(TCollection* list);
  virtual void Copy(TObject &c) const;
  AliESDtrackCuts(const AliESDtrackCuts& pd);  // Copy Constructor
  AliESDtrackCuts &operator=(const AliESDtrackCuts &c);

  //######################################################
  // track quality cut setters  
  void SetMinNClustersTPC(Int_t min=-1)          {fCutMinNClusterTPC=min;}
  void SetMinNClustersTPCPtDep(TFormula *f1=0x0, Float_t ptmax=0.);
  void SetMinNClustersITS(Int_t min=-1)          {fCutMinNClusterITS=min;}
  void SetMinNCrossedRowsTPC(Float_t min=-1) { fCutMinNCrossedRowsTPC=min;}
  void SetMinRatioCrossedRowsOverFindableClustersTPC(Float_t min = -1) { fCutMinRatioCrossedRowsOverFindableClustersTPC=min;}
  void SetClusterRequirementITS(Detector det, ITSClusterRequirement req = kOff) { fCutClusterRequirementITS[det] = req; }
  void SetMaxChi2PerClusterTPC(Float_t max=1e10) {fCutMaxChi2PerClusterTPC=max;}
  void SetMaxChi2PerClusterITS(Float_t max=1e10) {fCutMaxChi2PerClusterITS=max;}
  void SetMaxChi2TPCConstrainedGlobal(Float_t max=1e10) {fCutMaxChi2TPCConstrainedVsGlobal = max; }
  void SetMaxChi2TPCConstrainedGlobalVertexType(Int_t vertexType = kVertexTracks | kVertexSPD) { fCutMaxChi2TPCConstrainedVsGlobalVertexType = vertexType; }
  void SetMaxNOfMissingITSPoints(Int_t max=6)    {fCutMaxMissingITSPoints=max;}
  void SetRequireTPCRefit(Bool_t b=kFALSE)       {fCutRequireTPCRefit=b;}
  void SetRequireTPCStandAlone(Bool_t b=kFALSE)  {fCutRequireTPCStandAlone=b;}
  void SetRequireITSRefit(Bool_t b=kFALSE)       {fCutRequireITSRefit=b;}
  void SetRequireITSPid(Bool_t b=kFALSE)         {fCutRequireITSPid=b;}
  void SetRequireITSStandAlone(Bool_t b=kFALSE)    {fCutRequireITSStandAlone = b;} 
  void SetRequireITSPureStandAlone(Bool_t b=kFALSE){fCutRequireITSpureSA = b;}


  void SetAcceptKinkDaughters(Bool_t b=kTRUE)    {fCutAcceptKinkDaughters=b;}
  void SetAcceptSharedTPCClusters(Bool_t b=kTRUE){fCutAcceptSharedTPCClusters=b;}
  void SetMaxFractionSharedTPCClusters(Float_t max=1e10) {fCutMaxFractionSharedTPCClusters=max;}
  void SetMaxCovDiagonalElements(Float_t c1=1e10, Float_t c2=1e10, Float_t c3=1e10, Float_t c4=1e10, Float_t c5=1e10) 
    {fCutMaxC11=c1; fCutMaxC22=c2; fCutMaxC33=c3; fCutMaxC44=c4; fCutMaxC55=c5;}
  void SetMaxRel1PtUncertainty(Float_t max=1e10)      {fCutMaxRel1PtUncertainty=max;}


  // track to vertex cut setters
  void SetMaxNsigmaToVertex(Float_t sigma=1e10)       {fCutNsigmaToVertex = sigma; SetRequireSigmaToVertex(kTRUE);}
  void SetRequireSigmaToVertex(Bool_t b=kTRUE)        {fCutSigmaToVertexRequired = b;}
  void SetMaxDCAToVertexXY(Float_t dist=1e10)         {fCutMaxDCAToVertexXY = dist;}
  void SetMaxDCAToVertexZ(Float_t dist=1e10)          {fCutMaxDCAToVertexZ = dist;}
  void SetMinDCAToVertexXY(Float_t dist=0.)           {fCutMinDCAToVertexXY = dist;}
  void SetMinDCAToVertexZ(Float_t dist=0.)            {fCutMinDCAToVertexZ = dist;}
  void SetMaxDCAToVertexXYPtDep(const char *dist="");
  void SetMaxDCAToVertexZPtDep(const char *dist=""); 
  void SetMinDCAToVertexXYPtDep(const char *dist="");
  void SetMinDCAToVertexZPtDep(const char *dist=""); 
  void SetDCAToVertex2D(Bool_t b=kFALSE)              {fCutDCAToVertex2D = b;}


  // getters

  Int_t   GetMinNClusterTPC()        const   { return fCutMinNClusterTPC;}
  Int_t   GetMinNClustersITS()       const   { return fCutMinNClusterITS;}
  TFormula *GetMinNClustersTPCPtDep() const  { return f1CutMinNClustersTPCPtDep;}
  ITSClusterRequirement GetClusterRequirementITS(Detector det) const { return fCutClusterRequirementITS[det]; }
  Float_t GetMaxChi2PerClusterTPC()  const   { return fCutMaxChi2PerClusterTPC;}
  Float_t GetMaxChi2PerClusterITS()  const   { return fCutMaxChi2PerClusterITS;}
  Float_t GetMaxChi2TPCConstrainedGlobal() const { return fCutMaxChi2TPCConstrainedVsGlobal; }
  Int_t GetMaxChi2TPCConstrainedGlobalVertexType() const { return fCutMaxChi2TPCConstrainedVsGlobalVertexType; }
  Int_t   GetMaxNOfMissingITSPoints() const   { return  fCutMaxMissingITSPoints;}
  Bool_t  GetRequireTPCRefit()       const   { return fCutRequireTPCRefit;}
  Bool_t  GetRequireTPCStandAlone()  const   { return fCutRequireTPCStandAlone;}
  Bool_t  GetRequireITSRefit()       const   { return fCutRequireITSRefit;}
  Bool_t  GetRequireITSStandAlone()  const   { return fCutRequireITSStandAlone; }
  Bool_t  GetAcceptKinkDaughters()   const   { return fCutAcceptKinkDaughters;}
  Bool_t  GetAcceptSharedTPCClusters()        const   {return fCutAcceptSharedTPCClusters;}
  Float_t GetMaxFractionSharedTPCClusters()   const   {return fCutMaxFractionSharedTPCClusters;}
  void    GetMaxCovDiagonalElements(Float_t& c1, Float_t& c2, Float_t& c3, Float_t& c4, Float_t& c5) const
      {c1 = fCutMaxC11; c2 = fCutMaxC22; c3 = fCutMaxC33; c4 = fCutMaxC44; c5 = fCutMaxC55;}
  Float_t GetMaxRel1PtUncertainty()  const   { return fCutMaxRel1PtUncertainty;}
  Float_t GetMaxNsigmaToVertex()     const   { return fCutNsigmaToVertex;}
  Float_t GetMaxDCAToVertexXY()      const   { return fCutMaxDCAToVertexXY;}
  Float_t GetMaxDCAToVertexZ()       const   { return fCutMaxDCAToVertexZ;}
  Float_t GetMinDCAToVertexXY()      const   { return fCutMinDCAToVertexXY;}
  Float_t GetMinDCAToVertexZ()       const   { return fCutMinDCAToVertexZ;}
  const char* GetMaxDCAToVertexXYPtDep() const   { return fCutMaxDCAToVertexXYPtDep;}
  const char* GetMaxDCAToVertexZPtDep()  const   { return fCutMaxDCAToVertexZPtDep;}
  const char* GetMinDCAToVertexXYPtDep() const   { return fCutMinDCAToVertexXYPtDep;}
  const char* GetMinDCAToVertexZPtDep()  const   { return fCutMinDCAToVertexZPtDep;}
  Bool_t  GetDCAToVertex2D()         const   { return fCutDCAToVertex2D;}
  Bool_t  GetRequireSigmaToVertex( ) const   { return fCutSigmaToVertexRequired;}

  void GetPRange(Float_t& r1, Float_t& r2)  const {r1=fPMin;   r2=fPMax;}
  void GetPtRange(Float_t& r1, Float_t& r2) const {r1=fPtMin;  r2=fPtMax;}
  void GetPxRange(Float_t& r1, Float_t& r2) const {r1=fPxMin;  r2=fPxMax;}
  void GetPyRange(Float_t& r1, Float_t& r2) const {r1=fPyMin;  r2=fPyMax;}
  void GetPzRange(Float_t& r1, Float_t& r2) const {r1=fPzMin;  r2=fPzMax;}
  void GetEtaRange(Float_t& r1, Float_t& r2) const {r1=fEtaMin; r2=fEtaMax;}
  void GetRapRange(Float_t& r1, Float_t& r2) const {r1=fRapMin; r2=fRapMax;}

  // track kinmatic cut setters
  void SetPRange(Float_t r1=0, Float_t r2=1e10)       {fPMin=r1;   fPMax=r2;}
  void SetPtRange(Float_t r1=0, Float_t r2=1e10)      {fPtMin=r1;  fPtMax=r2;}
  void SetPxRange(Float_t r1=-1e10, Float_t r2=1e10)  {fPxMin=r1;  fPxMax=r2;}
  void SetPyRange(Float_t r1=-1e10, Float_t r2=1e10)  {fPyMin=r1;  fPyMax=r2;}
  void SetPzRange(Float_t r1=-1e10, Float_t r2=1e10)  {fPzMin=r1;  fPzMax=r2;}
  void SetEtaRange(Float_t r1=-1e10, Float_t r2=1e10) {fEtaMin=r1; fEtaMax=r2;}
  void SetRapRange(Float_t r1=-1e10, Float_t r2=1e10) {fRapMin=r1; fRapMax=r2;}

  //######################################################
  void SetHistogramsOn(Bool_t b=kFALSE) {fHistogramsOn = b;}
  void DefineHistograms(Int_t color=1);
  virtual Bool_t LoadHistograms(const Char_t* dir = 0);
  void SaveHistograms(const Char_t* dir = 0);
  void DrawHistograms();

  static Float_t GetSigmaToVertex(const AliESDtrack* const esdTrack);
  
  static void EnableNeededBranches(TTree* tree);

  // void SaveQualityCuts(Char_t* file)
  // void LoadQualityCuts(Char_t* file)

  TH1F* GetDZNormalized(Int_t i) const { return fhDZNormalized[i]; }
  TH1F* GetNClustersTPC(Int_t i) const { return fhNClustersTPC[i]; }
  TH1F* GetPtHist(Int_t i) const { return fhPt[i]; }
  
  // TOF cuts
  void SetFlagCutTOFdistance(Bool_t flagTOFcut) { fFlagCutTOFdistance = flagTOFcut;}
  Bool_t GetFlagCutTOFdistance() const { return fFlagCutTOFdistance;}
  void SetCutTOFdistance(Float_t cut) { fCutTOFdistance = cut;}
  Float_t GetCutTOFdistance() const { return fCutTOFdistance;}
  void SetRequireTOFout(Bool_t b = kFALSE) {fCutRequireTOFout = b;} 
  void SetRequireStandardTOFmatchCuts();

protected:
  void Init(); // sets everything to 0
  Bool_t CheckITSClusterRequirement(ITSClusterRequirement req, Bool_t clusterL1, Bool_t clusterL2);
  Bool_t CheckPtDepDCA(TString dist,Bool_t print=kFALSE) const;
  void SetPtDepDCACuts(Double_t pt);

  enum { kNCuts = 42 }; 

  //######################################################
  // esd track quality cuts
  static const Char_t* fgkCutNames[kNCuts]; //! names of cuts (for internal use)
  static AliESDtrackCuts* fgMultEstTrackCuts[kNMultEstTrackCuts]; //! track cuts used for the multiplicity estimate

  Int_t   fCutMinNClusterTPC;         // min number of tpc clusters
  Int_t   fCutMinNClusterITS;         // min number of its clusters
  Float_t   fCutMinNCrossedRowsTPC;     // min number of tpc crossed rows
  Float_t fCutMinRatioCrossedRowsOverFindableClustersTPC; // min ratio crossed rows / findable clusters
  TFormula *f1CutMinNClustersTPCPtDep; // pt dependent tpc clusters cut
  Float_t fCutMaxPtDepNClustersTPC;   // maximum pt for pt dependend TPC cluster cut. For pt=>ptmax NClusterMin = f1CutMinNClustersTPCPtDep->Eval(fCutMaxPtDepNClustersTPC).

  ITSClusterRequirement fCutClusterRequirementITS[3];  // detailed ITS cluster requirements for (SPD, SDD, SSD)

  Float_t fCutMaxChi2PerClusterTPC;   // max tpc fit chi2 per tpc cluster
  Float_t fCutMaxChi2PerClusterITS;   // max its fit chi2 per its cluster
  Float_t fCutMaxChi2TPCConstrainedVsGlobal; // max chi2 TPC track constrained with vtx vs. global track
  Int_t fCutMaxChi2TPCConstrainedVsGlobalVertexType; // vertex type for max chi2 TPC track constrained with vtx vs. global track (can be configured to accept several vertex types)
  Int_t   fCutMaxMissingITSPoints;    // max n. of missing ITS points

  Float_t fCutMaxC11;                 // max cov. matrix diag. elements (res. y^2)
  Float_t fCutMaxC22;                 // max cov. matrix diag. elements (res. z^2)
  Float_t fCutMaxC33;                 // max cov. matrix diag. elements (res. sin(phi)^2)
  Float_t fCutMaxC44;                 // max cov. matrix diag. elements (res. tan(theta_dip)^2)
  Float_t fCutMaxC55;                 // max cov. matrix diag. elements (res. 1/pt^2)

  Float_t fCutMaxRel1PtUncertainty;   // max relative uncertainty of 1/pt

  Bool_t  fCutAcceptKinkDaughters;    // accepting kink daughters?
  Bool_t  fCutAcceptSharedTPCClusters;// accepting shared clusters in TPC?
  Float_t fCutMaxFractionSharedTPCClusters; //Maximum fraction of shared clusters in TPC
  Bool_t  fCutRequireTPCRefit;        // require TPC refit
  Bool_t  fCutRequireTPCStandAlone;   // require TPC standalone tracks
  Bool_t  fCutRequireITSRefit;        // require ITS refit
  Bool_t  fCutRequireITSPid;          // require ITS pid
  Bool_t  fCutRequireITSStandAlone;   // require ITS standalone tracks (remove pure SA)
  Bool_t  fCutRequireITSpureSA;       // require ITS pure standalone tracks (found using all ITS clusters)


  // track to vertex cut
  Float_t fCutNsigmaToVertex;         // max number of estimated sigma from track-to-vertex
  Bool_t  fCutSigmaToVertexRequired;  // cut track if sigma from track-to-vertex could not be calculated
  Float_t fCutMaxDCAToVertexXY;       // track-to-vertex cut in max absolute distance in xy-plane
  Float_t fCutMaxDCAToVertexZ;        // track-to-vertex cut in max absolute distance in z-plane
  Float_t fCutMinDCAToVertexXY;       // track-to-vertex cut on min absolute distance in xy-plane
  Float_t fCutMinDCAToVertexZ;        // track-to-vertex cut on min absolute distance in z-plane
  // 
  TString fCutMaxDCAToVertexXYPtDep;  // pt-dep track-to-vertex cut in max absolute distance in xy-plane
  TString fCutMaxDCAToVertexZPtDep;   // pt-dep track-to-vertex cut in max absolute distance in z-plane
  TString fCutMinDCAToVertexXYPtDep;  // pt-dep track-to-vertex cut on min absolute distance in xy-plane
  TString fCutMinDCAToVertexZPtDep;   // pt-dep track-to-vertex cut on min absolute distance in z-plane

  // only internal use, set via strings above
  TFormula *f1CutMaxDCAToVertexXYPtDep;  // pt-dep track-to-vertex cut in max absolute distance in xy-plane
  TFormula *f1CutMaxDCAToVertexZPtDep;   // pt-dep track-to-vertex cut in max absolute distance in z-plane
  TFormula *f1CutMinDCAToVertexXYPtDep;  // pt-dep track-to-vertex cut on min absolute distance in xy-plane
  TFormula *f1CutMinDCAToVertexZPtDep;   // pt-dep track-to-vertex cut on min absolute distance in z-plane

  Bool_t  fCutDCAToVertex2D;          // if true a 2D DCA cut is made. Tracks are accepted if sqrt((DCAXY / fCutMaxDCAToVertexXY)^2 + (DCAZ / fCutMaxDCAToVertexZ)^2) < 1 AND sqrt((DCAXY / fCutMinDCAToVertexXY)^2 + (DCAZ / fCutMinDCAToVertexZ)^2) > 1

  // 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

  Bool_t  fCutRequireTOFout;        // require TOF out 
  Bool_t  fFlagCutTOFdistance;       // cut on TOFdistance? --> yes by default!
  Float_t fCutTOFdistance;           // value of the cut on TOFdistance
  static Char_t fgBeamTypeFlag;      // -1 --> no check done on the beam type yet
                                     // 0 --> beam type != "A-A"
                                     // 1  --> beam type == "A-A"
   
  //######################################################
  // diagnostics histograms
  Bool_t fHistogramsOn;               // histograms on/off

  TH1F* fhNClustersITS[2];            //->
  TH1F* fhNClustersTPC[2];            //->
  TH1F* fhNSharedClustersTPC[2];      //->
  TH1F* fhNCrossedRowsTPC[2];         //->
  TH1F* fhRatioCrossedRowsOverFindableClustersTPC[2]; // ->

  TH1F* fhChi2PerClusterITS[2];       //->
  TH1F* fhChi2PerClusterTPC[2];       //->
  TH1F* fhChi2TPCConstrainedVsGlobal[2];       //->
  TH1F* fhNClustersForITSPID[2];      //-> number of points in SDD+SSD (ITS PID selection)
  TH1F* fhNMissingITSPoints[2];       //-> number of missing ITS points

  TH1F* fhC11[2];                     //->
  TH1F* fhC22[2];                     //->
  TH1F* fhC33[2];                     //->
  TH1F* fhC44[2];                     //->
  TH1F* fhC55[2];                     //->

  TH1F* fhRel1PtUncertainty[2];       //-> rel. uncertainty of 1/pt

  TH1F* fhDXY[2];                     //->
  TH1F* fhDZ[2];                      //->
  TH1F* fhDXYDZ[2];                   //-> absolute distance sqrt(dxy**2 + dz**2) to vertex; if 2D cut is set, normalized to given values
  TH2F* fhDXYvsDZ[2];                 //->

  TH1F* fhDXYNormalized[2];           //->
  TH1F* fhDZNormalized[2];            //->
  TH2F* fhDXYvsDZNormalized[2];       //->
  TH1F* fhNSigmaToVertex[2];          //->

  TH1F* fhPt[2];                      //-> pt of esd tracks
  TH1F* fhEta[2];                     //-> eta of esd tracks

  TF1*  ffDTheoretical;               //-> theoretical distance to vertex normalized (2d gauss)

  TH1F*  fhCutStatistics;             //-> statistics of what cuts the tracks did not survive
  TH2F*  fhCutCorrelation;            //-> 2d statistics plot

  TH2F* fhTOFdistance[2];            //-> TOF signal distance dx vs dz

  ClassDef(AliESDtrackCuts, 20)
};


#endif
Commit	Line	Data
	1	//
	2	// Class for handling of ESD track cuts.
	3	//
	4	// The class manages a number of track quality cuts, a
	5	// track-to-vertex cut and a number of kinematic cuts. Two methods
	6	// can be used to figure out if an ESD track survives the cuts:
	7	// AcceptTrack which takes a single AliESDtrack as argument and
	8	// returns kTRUE/kFALSE or GetAcceptedTracks which takes an AliESDEvent
	9	// object and returns an TObjArray (of AliESDtracks) with the tracks
	10	// in the ESD that survived the cuts.
	11	//
	12	//
	13	// TODO:
	14	// - add functionality to save and load cuts
	15	// - add histograms for kinematic cut variables?
	16	// - upper and lower cuts for all (non-boolean) cuts
	17	// - update print method
	18	// - put comments to each variable
	19	//
	20
	21	#ifndef ALIESDTRACKCUTS_H
	22	#define ALIESDTRACKCUTS_H
	23
	24	#include <TString.h>
	25
	26	#include "AliAnalysisCuts.h"
	27
	28	class AliESDEvent;
	29	class AliESDtrack;
	30	class AliLog;
	31	class TTree;
	32	class TH1;
	33	class TH1F;
	34	class TH2F;
	35	class TF1;
	36	class TCollection;
	37	class TFormula;
	38
	39	class AliESDtrackCuts : public AliAnalysisCuts
	40	{
	41	public:
	42	enum ITSClusterRequirement { kOff = 0, kNone, kAny, kFirst, kOnlyFirst, kSecond, kOnlySecond, kBoth };
	43	enum Detector { kSPD = 0, kSDD, kSSD };
	44	enum MultEstTrackCuts { kMultEstTrackCutGlobal = 0, kMultEstTrackCutITSSA, kMultEstTrackCutDCAwSPD, kMultEstTrackCutDCAwoSPD, kNMultEstTrackCuts /* this must always be the last */};
	45	enum MultEstTrackType { kTrackletsITSTPC = 0, kTrackletsITSSA, kTracklets };
	46	enum VertexType { kVertexTracks = 0x1, kVertexSPD = 0x2, kVertexTPC = 0x4 };
	47
	48	AliESDtrackCuts(const Char_t* name = "AliESDtrackCuts", const Char_t* title = "");
	49	virtual ~AliESDtrackCuts();
	50
	51	virtual Bool_t IsSelected(TObject* obj)
	52	{return AcceptTrack((AliESDtrack*)obj);}
	53	virtual Bool_t IsSelected(TList* /list/) {return kTRUE;}
	54
	55	Bool_t AcceptTrack(const AliESDtrack* esdTrack);
	56	TObjArray* GetAcceptedTracks(const AliESDEvent* esd, Bool_t bTPC = kFALSE);
	57	Int_t CountAcceptedTracks(const AliESDEvent* const esd);
	58
	59	static Int_t GetReferenceMultiplicity(const AliESDEvent* esd, Bool_t tpcOnly);
	60	static Int_t GetReferenceMultiplicity(const AliESDEvent* esd, MultEstTrackType trackType = kTrackletsITSTPC, Float_t etaRange = 0.5);
	61	static AliESDtrackCuts* GetMultEstTrackCuts(MultEstTrackCuts cut);
	62
	63	static AliESDtrack* GetTPCOnlyTrack(const AliESDEvent* esd, Int_t iTrack);
	64
	65	// Standard cut definitions
	66	static AliESDtrackCuts* GetStandardTPCOnlyTrackCuts();
	67	static AliESDtrackCuts* GetStandardITSTPCTrackCuts2009(Bool_t selPrimaries=kTRUE);
	68	static AliESDtrackCuts* GetStandardITSTPCTrackCuts2010(Bool_t selPrimaries=kTRUE, Int_t clusterCut=0);
	69	static AliESDtrackCuts* GetStandardITSTPCTrackCuts2011(Bool_t selPrimaries=kTRUE, Int_t clusterCut=1);
	70	static AliESDtrackCuts* GetStandardITSSATrackCuts2009(Bool_t selPrimaries=kTRUE, Bool_t useForPid=kTRUE);
	71	static AliESDtrackCuts* GetStandardITSSATrackCuts2010(Bool_t selPrimaries=kTRUE, Bool_t useForPid=kTRUE);
	72	static AliESDtrackCuts* GetStandardITSSATrackCutsPbPb2010(Bool_t selPrimaries=kTRUE, Bool_t useForPid=kTRUE);
	73	static AliESDtrackCuts* GetStandardITSPureSATrackCuts2009(Bool_t selPrimaries=kTRUE, Bool_t useForPid=kTRUE);
	74	static AliESDtrackCuts* GetStandardITSPureSATrackCuts2010(Bool_t selPrimaries=kTRUE, Bool_t useForPid=kTRUE);
	75	// Standard cuts for daughter tracks
	76	static AliESDtrackCuts* GetStandardV0DaughterCuts();
	77
	78	virtual Long64_t Merge(TCollection* list);
	79	virtual void Copy(TObject &c) const;
	80	AliESDtrackCuts(const AliESDtrackCuts& pd); // Copy Constructor
	81	AliESDtrackCuts &operator=(const AliESDtrackCuts &c);
	82
	83	//######################################################
	84	// track quality cut setters
	85	void SetMinNClustersTPC(Int_t min=-1) {fCutMinNClusterTPC=min;}
	86	void SetMinNClustersTPCPtDep(TFormula *f1=0x0, Float_t ptmax=0.);
	87	void SetMinNClustersITS(Int_t min=-1) {fCutMinNClusterITS=min;}
	88	void SetMinNCrossedRowsTPC(Float_t min=-1) { fCutMinNCrossedRowsTPC=min;}
	89	void SetMinRatioCrossedRowsOverFindableClustersTPC(Float_t min = -1) { fCutMinRatioCrossedRowsOverFindableClustersTPC=min;}
	90	void SetClusterRequirementITS(Detector det, ITSClusterRequirement req = kOff) { fCutClusterRequirementITS[det] = req; }
	91	void SetMaxChi2PerClusterTPC(Float_t max=1e10) {fCutMaxChi2PerClusterTPC=max;}
	92	void SetMaxChi2PerClusterITS(Float_t max=1e10) {fCutMaxChi2PerClusterITS=max;}
	93	void SetMaxChi2TPCConstrainedGlobal(Float_t max=1e10) {fCutMaxChi2TPCConstrainedVsGlobal = max; }
	94	void SetMaxChi2TPCConstrainedGlobalVertexType(Int_t vertexType = kVertexTracks \| kVertexSPD) { fCutMaxChi2TPCConstrainedVsGlobalVertexType = vertexType; }
	95	void SetMaxNOfMissingITSPoints(Int_t max=6) {fCutMaxMissingITSPoints=max;}
	96	void SetRequireTPCRefit(Bool_t b=kFALSE) {fCutRequireTPCRefit=b;}
	97	void SetRequireTPCStandAlone(Bool_t b=kFALSE) {fCutRequireTPCStandAlone=b;}
	98	void SetRequireITSRefit(Bool_t b=kFALSE) {fCutRequireITSRefit=b;}
	99	void SetRequireITSPid(Bool_t b=kFALSE) {fCutRequireITSPid=b;}
	100	void SetRequireITSStandAlone(Bool_t b=kFALSE) {fCutRequireITSStandAlone = b;}
	101	void SetRequireITSPureStandAlone(Bool_t b=kFALSE){fCutRequireITSpureSA = b;}
	102
	103
	104	void SetAcceptKinkDaughters(Bool_t b=kTRUE) {fCutAcceptKinkDaughters=b;}
	105	void SetAcceptSharedTPCClusters(Bool_t b=kTRUE){fCutAcceptSharedTPCClusters=b;}
	106	void SetMaxFractionSharedTPCClusters(Float_t max=1e10) {fCutMaxFractionSharedTPCClusters=max;}
	107	void SetMaxCovDiagonalElements(Float_t c1=1e10, Float_t c2=1e10, Float_t c3=1e10, Float_t c4=1e10, Float_t c5=1e10)
	108	{fCutMaxC11=c1; fCutMaxC22=c2; fCutMaxC33=c3; fCutMaxC44=c4; fCutMaxC55=c5;}
	109	void SetMaxRel1PtUncertainty(Float_t max=1e10) {fCutMaxRel1PtUncertainty=max;}
	110
	111
	112	// track to vertex cut setters
	113	void SetMaxNsigmaToVertex(Float_t sigma=1e10) {fCutNsigmaToVertex = sigma; SetRequireSigmaToVertex(kTRUE);}
	114	void SetRequireSigmaToVertex(Bool_t b=kTRUE) {fCutSigmaToVertexRequired = b;}
	115	void SetMaxDCAToVertexXY(Float_t dist=1e10) {fCutMaxDCAToVertexXY = dist;}
	116	void SetMaxDCAToVertexZ(Float_t dist=1e10) {fCutMaxDCAToVertexZ = dist;}
	117	void SetMinDCAToVertexXY(Float_t dist=0.) {fCutMinDCAToVertexXY = dist;}
	118	void SetMinDCAToVertexZ(Float_t dist=0.) {fCutMinDCAToVertexZ = dist;}
	119	void SetMaxDCAToVertexXYPtDep(const char *dist="");
	120	void SetMaxDCAToVertexZPtDep(const char *dist="");
	121	void SetMinDCAToVertexXYPtDep(const char *dist="");
	122	void SetMinDCAToVertexZPtDep(const char *dist="");
	123	void SetDCAToVertex2D(Bool_t b=kFALSE) {fCutDCAToVertex2D = b;}
	124
	125
	126	// getters
	127
	128	Int_t GetMinNClusterTPC() const { return fCutMinNClusterTPC;}
	129	Int_t GetMinNClustersITS() const { return fCutMinNClusterITS;}
	130	TFormula *GetMinNClustersTPCPtDep() const { return f1CutMinNClustersTPCPtDep;}
	131	ITSClusterRequirement GetClusterRequirementITS(Detector det) const { return fCutClusterRequirementITS[det]; }
	132	Float_t GetMaxChi2PerClusterTPC() const { return fCutMaxChi2PerClusterTPC;}
	133	Float_t GetMaxChi2PerClusterITS() const { return fCutMaxChi2PerClusterITS;}
	134	Float_t GetMaxChi2TPCConstrainedGlobal() const { return fCutMaxChi2TPCConstrainedVsGlobal; }
	135	Int_t GetMaxChi2TPCConstrainedGlobalVertexType() const { return fCutMaxChi2TPCConstrainedVsGlobalVertexType; }
	136	Int_t GetMaxNOfMissingITSPoints() const { return fCutMaxMissingITSPoints;}
	137	Bool_t GetRequireTPCRefit() const { return fCutRequireTPCRefit;}
	138	Bool_t GetRequireTPCStandAlone() const { return fCutRequireTPCStandAlone;}
	139	Bool_t GetRequireITSRefit() const { return fCutRequireITSRefit;}
	140	Bool_t GetRequireITSStandAlone() const { return fCutRequireITSStandAlone; }
	141	Bool_t GetAcceptKinkDaughters() const { return fCutAcceptKinkDaughters;}
	142	Bool_t GetAcceptSharedTPCClusters() const {return fCutAcceptSharedTPCClusters;}
	143	Float_t GetMaxFractionSharedTPCClusters() const {return fCutMaxFractionSharedTPCClusters;}
	144	void GetMaxCovDiagonalElements(Float_t& c1, Float_t& c2, Float_t& c3, Float_t& c4, Float_t& c5) const
	145	{c1 = fCutMaxC11; c2 = fCutMaxC22; c3 = fCutMaxC33; c4 = fCutMaxC44; c5 = fCutMaxC55;}
	146	Float_t GetMaxRel1PtUncertainty() const { return fCutMaxRel1PtUncertainty;}
	147	Float_t GetMaxNsigmaToVertex() const { return fCutNsigmaToVertex;}
	148	Float_t GetMaxDCAToVertexXY() const { return fCutMaxDCAToVertexXY;}
	149	Float_t GetMaxDCAToVertexZ() const { return fCutMaxDCAToVertexZ;}
	150	Float_t GetMinDCAToVertexXY() const { return fCutMinDCAToVertexXY;}
	151	Float_t GetMinDCAToVertexZ() const { return fCutMinDCAToVertexZ;}
	152	const char* GetMaxDCAToVertexXYPtDep() const { return fCutMaxDCAToVertexXYPtDep;}
	153	const char* GetMaxDCAToVertexZPtDep() const { return fCutMaxDCAToVertexZPtDep;}
	154	const char* GetMinDCAToVertexXYPtDep() const { return fCutMinDCAToVertexXYPtDep;}
	155	const char* GetMinDCAToVertexZPtDep() const { return fCutMinDCAToVertexZPtDep;}
	156	Bool_t GetDCAToVertex2D() const { return fCutDCAToVertex2D;}
	157	Bool_t GetRequireSigmaToVertex( ) const { return fCutSigmaToVertexRequired;}
	158
	159	void GetPRange(Float_t& r1, Float_t& r2) const {r1=fPMin; r2=fPMax;}
	160	void GetPtRange(Float_t& r1, Float_t& r2) const {r1=fPtMin; r2=fPtMax;}
	161	void GetPxRange(Float_t& r1, Float_t& r2) const {r1=fPxMin; r2=fPxMax;}
	162	void GetPyRange(Float_t& r1, Float_t& r2) const {r1=fPyMin; r2=fPyMax;}
	163	void GetPzRange(Float_t& r1, Float_t& r2) const {r1=fPzMin; r2=fPzMax;}
	164	void GetEtaRange(Float_t& r1, Float_t& r2) const {r1=fEtaMin; r2=fEtaMax;}
	165	void GetRapRange(Float_t& r1, Float_t& r2) const {r1=fRapMin; r2=fRapMax;}
	166
	167	// track kinmatic cut setters
	168	void SetPRange(Float_t r1=0, Float_t r2=1e10) {fPMin=r1; fPMax=r2;}
	169	void SetPtRange(Float_t r1=0, Float_t r2=1e10) {fPtMin=r1; fPtMax=r2;}
	170	void SetPxRange(Float_t r1=-1e10, Float_t r2=1e10) {fPxMin=r1; fPxMax=r2;}
	171	void SetPyRange(Float_t r1=-1e10, Float_t r2=1e10) {fPyMin=r1; fPyMax=r2;}
	172	void SetPzRange(Float_t r1=-1e10, Float_t r2=1e10) {fPzMin=r1; fPzMax=r2;}
	173	void SetEtaRange(Float_t r1=-1e10, Float_t r2=1e10) {fEtaMin=r1; fEtaMax=r2;}
	174	void SetRapRange(Float_t r1=-1e10, Float_t r2=1e10) {fRapMin=r1; fRapMax=r2;}
	175
	176	//######################################################
	177	void SetHistogramsOn(Bool_t b=kFALSE) {fHistogramsOn = b;}
	178	void DefineHistograms(Int_t color=1);
	179	virtual Bool_t LoadHistograms(const Char_t* dir = 0);
	180	void SaveHistograms(const Char_t* dir = 0);
	181	void DrawHistograms();
	182
	183	static Float_t GetSigmaToVertex(const AliESDtrack* const esdTrack);
	184
	185	static void EnableNeededBranches(TTree* tree);
	186
	187	// void SaveQualityCuts(Char_t* file)
	188	// void LoadQualityCuts(Char_t* file)
	189
	190	TH1F* GetDZNormalized(Int_t i) const { return fhDZNormalized[i]; }
	191	TH1F* GetNClustersTPC(Int_t i) const { return fhNClustersTPC[i]; }
	192	TH1F* GetPtHist(Int_t i) const { return fhPt[i]; }
	193
	194	// TOF cuts
	195	void SetFlagCutTOFdistance(Bool_t flagTOFcut) { fFlagCutTOFdistance = flagTOFcut;}
	196	Bool_t GetFlagCutTOFdistance() const { return fFlagCutTOFdistance;}
	197	void SetCutTOFdistance(Float_t cut) { fCutTOFdistance = cut;}
	198	Float_t GetCutTOFdistance() const { return fCutTOFdistance;}
	199	void SetRequireTOFout(Bool_t b = kFALSE) {fCutRequireTOFout = b;}
	200	void SetRequireStandardTOFmatchCuts();
	201
	202	protected:
	203	void Init(); // sets everything to 0
	204	Bool_t CheckITSClusterRequirement(ITSClusterRequirement req, Bool_t clusterL1, Bool_t clusterL2);
	205	Bool_t CheckPtDepDCA(TString dist,Bool_t print=kFALSE) const;
	206	void SetPtDepDCACuts(Double_t pt);
	207
	208	enum { kNCuts = 42 };
	209
	210	//######################################################
	211	// esd track quality cuts
	212	static const Char_t* fgkCutNames[kNCuts]; //! names of cuts (for internal use)
	213	static AliESDtrackCuts* fgMultEstTrackCuts[kNMultEstTrackCuts]; //! track cuts used for the multiplicity estimate
	214
	215	Int_t fCutMinNClusterTPC; // min number of tpc clusters
	216	Int_t fCutMinNClusterITS; // min number of its clusters
	217	Float_t fCutMinNCrossedRowsTPC; // min number of tpc crossed rows
	218	Float_t fCutMinRatioCrossedRowsOverFindableClustersTPC; // min ratio crossed rows / findable clusters
	219	TFormula *f1CutMinNClustersTPCPtDep; // pt dependent tpc clusters cut
	220	Float_t fCutMaxPtDepNClustersTPC; // maximum pt for pt dependend TPC cluster cut. For pt=>ptmax NClusterMin = f1CutMinNClustersTPCPtDep->Eval(fCutMaxPtDepNClustersTPC).
	221
	222	ITSClusterRequirement fCutClusterRequirementITS[3]; // detailed ITS cluster requirements for (SPD, SDD, SSD)
	223
	224	Float_t fCutMaxChi2PerClusterTPC; // max tpc fit chi2 per tpc cluster
	225	Float_t fCutMaxChi2PerClusterITS; // max its fit chi2 per its cluster
	226	Float_t fCutMaxChi2TPCConstrainedVsGlobal; // max chi2 TPC track constrained with vtx vs. global track
	227	Int_t fCutMaxChi2TPCConstrainedVsGlobalVertexType; // vertex type for max chi2 TPC track constrained with vtx vs. global track (can be configured to accept several vertex types)
	228	Int_t fCutMaxMissingITSPoints; // max n. of missing ITS points
	229
	230	Float_t fCutMaxC11; // max cov. matrix diag. elements (res. y^2)
	231	Float_t fCutMaxC22; // max cov. matrix diag. elements (res. z^2)
	232	Float_t fCutMaxC33; // max cov. matrix diag. elements (res. sin(phi)^2)
	233	Float_t fCutMaxC44; // max cov. matrix diag. elements (res. tan(theta_dip)^2)
	234	Float_t fCutMaxC55; // max cov. matrix diag. elements (res. 1/pt^2)
	235
	236	Float_t fCutMaxRel1PtUncertainty; // max relative uncertainty of 1/pt
	237
	238	Bool_t fCutAcceptKinkDaughters; // accepting kink daughters?
	239	Bool_t fCutAcceptSharedTPCClusters;// accepting shared clusters in TPC?
	240	Float_t fCutMaxFractionSharedTPCClusters; //Maximum fraction of shared clusters in TPC
	241	Bool_t fCutRequireTPCRefit; // require TPC refit
	242	Bool_t fCutRequireTPCStandAlone; // require TPC standalone tracks
	243	Bool_t fCutRequireITSRefit; // require ITS refit
	244	Bool_t fCutRequireITSPid; // require ITS pid
	245	Bool_t fCutRequireITSStandAlone; // require ITS standalone tracks (remove pure SA)
	246	Bool_t fCutRequireITSpureSA; // require ITS pure standalone tracks (found using all ITS clusters)
	247
	248
	249	// track to vertex cut
	250	Float_t fCutNsigmaToVertex; // max number of estimated sigma from track-to-vertex
	251	Bool_t fCutSigmaToVertexRequired; // cut track if sigma from track-to-vertex could not be calculated
	252	Float_t fCutMaxDCAToVertexXY; // track-to-vertex cut in max absolute distance in xy-plane
	253	Float_t fCutMaxDCAToVertexZ; // track-to-vertex cut in max absolute distance in z-plane
	254	Float_t fCutMinDCAToVertexXY; // track-to-vertex cut on min absolute distance in xy-plane
	255	Float_t fCutMinDCAToVertexZ; // track-to-vertex cut on min absolute distance in z-plane
	256	//
	257	TString fCutMaxDCAToVertexXYPtDep; // pt-dep track-to-vertex cut in max absolute distance in xy-plane
	258	TString fCutMaxDCAToVertexZPtDep; // pt-dep track-to-vertex cut in max absolute distance in z-plane
	259	TString fCutMinDCAToVertexXYPtDep; // pt-dep track-to-vertex cut on min absolute distance in xy-plane
	260	TString fCutMinDCAToVertexZPtDep; // pt-dep track-to-vertex cut on min absolute distance in z-plane
	261
	262	// only internal use, set via strings above
	263	TFormula *f1CutMaxDCAToVertexXYPtDep; // pt-dep track-to-vertex cut in max absolute distance in xy-plane
	264	TFormula *f1CutMaxDCAToVertexZPtDep; // pt-dep track-to-vertex cut in max absolute distance in z-plane
	265	TFormula *f1CutMinDCAToVertexXYPtDep; // pt-dep track-to-vertex cut on min absolute distance in xy-plane
	266	TFormula *f1CutMinDCAToVertexZPtDep; // pt-dep track-to-vertex cut on min absolute distance in z-plane
	267
	268	Bool_t fCutDCAToVertex2D; // if true a 2D DCA cut is made. Tracks are accepted if sqrt((DCAXY / fCutMaxDCAToVertexXY)^2 + (DCAZ / fCutMaxDCAToVertexZ)^2) < 1 AND sqrt((DCAXY / fCutMinDCAToVertexXY)^2 + (DCAZ / fCutMinDCAToVertexZ)^2) > 1
	269
	270	// esd kinematics cuts
	271	Float_t fPMin, fPMax; // definition of the range of the P
	272	Float_t fPtMin, fPtMax; // definition of the range of the Pt
	273	Float_t fPxMin, fPxMax; // definition of the range of the Px
	274	Float_t fPyMin, fPyMax; // definition of the range of the Py
	275	Float_t fPzMin, fPzMax; // definition of the range of the Pz
	276	Float_t fEtaMin, fEtaMax; // definition of the range of the eta
	277	Float_t fRapMin, fRapMax; // definition of the range of the y
	278
	279	Bool_t fCutRequireTOFout; // require TOF out
	280	Bool_t fFlagCutTOFdistance; // cut on TOFdistance? --> yes by default!
	281	Float_t fCutTOFdistance; // value of the cut on TOFdistance
	282	static Char_t fgBeamTypeFlag; // -1 --> no check done on the beam type yet
	283	// 0 --> beam type != "A-A"
	284	// 1 --> beam type == "A-A"
	285
	286	//######################################################
	287	// diagnostics histograms
	288	Bool_t fHistogramsOn; // histograms on/off
	289
	290	TH1F* fhNClustersITS[2]; //->
	291	TH1F* fhNClustersTPC[2]; //->
	292	TH1F* fhNSharedClustersTPC[2]; //->
	293	TH1F* fhNCrossedRowsTPC[2]; //->
	294	TH1F* fhRatioCrossedRowsOverFindableClustersTPC[2]; // ->
	295
	296	TH1F* fhChi2PerClusterITS[2]; //->
	297	TH1F* fhChi2PerClusterTPC[2]; //->
	298	TH1F* fhChi2TPCConstrainedVsGlobal[2]; //->
	299	TH1F* fhNClustersForITSPID[2]; //-> number of points in SDD+SSD (ITS PID selection)
	300	TH1F* fhNMissingITSPoints[2]; //-> number of missing ITS points
	301
	302	TH1F* fhC11[2]; //->
	303	TH1F* fhC22[2]; //->
	304	TH1F* fhC33[2]; //->
	305	TH1F* fhC44[2]; //->
	306	TH1F* fhC55[2]; //->
	307
	308	TH1F* fhRel1PtUncertainty[2]; //-> rel. uncertainty of 1/pt
	309
	310	TH1F* fhDXY[2]; //->
	311	TH1F* fhDZ[2]; //->
	312	TH1F* fhDXYDZ[2]; //-> absolute distance sqrt(dxy2 + dz2) to vertex; if 2D cut is set, normalized to given values
	313	TH2F* fhDXYvsDZ[2]; //->
	314
	315	TH1F* fhDXYNormalized[2]; //->
	316	TH1F* fhDZNormalized[2]; //->
	317	TH2F* fhDXYvsDZNormalized[2]; //->
	318	TH1F* fhNSigmaToVertex[2]; //->
	319
	320	TH1F* fhPt[2]; //-> pt of esd tracks
	321	TH1F* fhEta[2]; //-> eta of esd tracks
	322
	323	TF1* ffDTheoretical; //-> theoretical distance to vertex normalized (2d gauss)
	324
	325	TH1F* fhCutStatistics; //-> statistics of what cuts the tracks did not survive
	326	TH2F* fhCutCorrelation; //-> 2d statistics plot
	327
	328	TH2F* fhTOFdistance[2]; //-> TOF signal distance dx vs dz
	329
	330	ClassDef(AliESDtrackCuts, 20)
	331	};
	332
	333
	334	#endif