[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 <TF1.h>
#include <TH2.h>
#include "AliAnalysisCuts.h"

class AliESDEvent;
class AliESDtrack;
class AliLog;
class TTree;

class AliESDtrackCuts : public AliAnalysisCuts
{
public:
  AliESDtrackCuts(const Char_t* name = "AliESDtrackCuts", const Char_t* title = "");
  virtual ~AliESDtrackCuts();

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

  Bool_t AcceptTrack(AliESDtrack* esdTrack);
  TObjArray* GetAcceptedTracks(AliESDEvent* esd, Bool_t bTPC = kFALSE);
  Int_t CountAcceptedTracks(AliESDEvent* esd);

  static AliESDtrack* GetTPCOnlyTrack(AliESDEvent* esd, Int_t iTrack);

  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 SetMinNClustersITS(Int_t min=-1)          {fCutMinNClusterITS=min;}
  void SetMaxChi2PerClusterTPC(Float_t max=1e10) {fCutMaxChi2PerClusterTPC=max;}
  void SetMaxChi2PerClusterITS(Float_t max=1e10) {fCutMaxChi2PerClusterITS=max;}
  void SetRequireTPCRefit(Bool_t b=kFALSE)       {fCutRequireTPCRefit=b;}
  void SetRequireITSRefit(Bool_t b=kFALSE)       {fCutRequireITSRefit=b;}
  void SetAcceptKingDaughters(Bool_t b=kFALSE)   {fCutAcceptKinkDaughters=b;}
  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;}

  // track to vertex cut setters
  void SetMinNsigmaToVertex(Float_t sigma=1e10)       {fCutNsigmaToVertex = sigma;}
  void SetRequireSigmaToVertex(Bool_t b=kTRUE )       {fCutSigmaToVertexRequired = b;}
  void SetDCAToVertex(Float_t dist=1e10)              {fCutDCAToVertex = dist;}
  void SetDCAToVertexXY(Float_t dist=1e10)            {fCutDCAToVertexXY = dist;}
  void SetDCAToVertexZ(Float_t dist=1e10)             {fCutDCAToVertexZ = dist;}

  // getters

  Int_t   GetMinNClusterTPC()        const   { return fCutMinNClusterTPC;}
  Int_t   GetMinNClustersITS()       const   { return fCutMinNClusterITS;}
  Float_t GetMaxChi2PerClusterTPC()  const   { return fCutMaxChi2PerClusterTPC;}
  Float_t GetMaxChi2PerClusterITS()  const   { return fCutMaxChi2PerClusterITS;}
  Bool_t  GetRequireTPCRefit()       const   { return fCutRequireTPCRefit;}
  Bool_t  GetRequireITSRefit()       const   { return fCutRequireITSRefit;}
  Bool_t  GetAcceptKingDaughters()   const   { return fCutAcceptKinkDaughters;}
  void    GetMaxCovDiagonalElements(Float_t& c1, Float_t& c2, Float_t& c3, Float_t& c4, Float_t& c5) 
      {c1 = fCutMaxC11; c2 = fCutMaxC22; c3 = fCutMaxC33; c4 = fCutMaxC44; c5 = fCutMaxC55;}
  Float_t GetMinNsigmaToVertex()     const   { return fCutNsigmaToVertex;}
  Float_t GetDCAToVertex()           const   { return fCutDCAToVertex;}
  Float_t GetDCAToVertexXY()         const   { return fCutDCAToVertexXY;}
  Bool_t  GetRequireSigmaToVertex( ) const   { return fCutSigmaToVertexRequired;}

  void GetPRange(Float_t& r1, Float_t& r2)   {r1=fPMin;   r2=fPMax;}
  void GetPtRange(Float_t& r1, Float_t& r2)  {r1=fPtMin;  r2=fPtMax;}
  void GetPxRange(Float_t& r1, Float_t& r2)  {r1=fPxMin;  r2=fPxMax;}
  void GetPyRange(Float_t& r1, Float_t& r2)  {r1=fPyMin;  r2=fPyMax;}
  void GetPzRange(Float_t& r1, Float_t& r2)  {r1=fPzMin;  r2=fPzMax;}
  void GetEtaRange(Float_t& r1, Float_t& r2) {r1=fEtaMin; r2=fEtaMax;}
  void GetRapRange(Float_t& r1, Float_t& r2) {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(AliESDtrack* esdTrack);
  
  static void EnableNeededBranches(TTree* tree);

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

	TH1* GetDZNormalized(Int_t i) const { return fhDZNormalized[i]; }

protected:
  void Init(); // sets everything to 0

  enum { kNCuts = 24 };

  //######################################################
  // esd track quality cuts
  static const Char_t* fgkCutNames[kNCuts]; //! names of cuts (for internal use)

  Int_t   fCutMinNClusterTPC;         // min number of tpc clusters
  Int_t   fCutMinNClusterITS;         // min number of its clusters

  Float_t fCutMaxChi2PerClusterTPC;   // max tpc fit chi2 per tpc cluster
  Float_t fCutMaxChi2PerClusterITS;   // max its fit chi2 per its cluster

  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)

  Bool_t  fCutAcceptKinkDaughters;    // accepting kink daughters?
  Bool_t  fCutRequireTPCRefit;        // require TPC refit
  Bool_t  fCutRequireITSRefit;        // require ITS refit

  // 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 fCutDCAToVertex;            // track-to-vertex cut in absolute distance
  Float_t fCutDCAToVertexXY;          // track-to-vertex cut in absolute distance in xy-plane
  Float_t fCutDCAToVertexZ;           // track-to-vertex cut in absolute distance in z-plane

  // 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

  //######################################################
  // diagnostics histograms
  Bool_t fHistogramsOn;               // histograms on/off

  TH1F* fhNClustersITS[2];            //->
  TH1F* fhNClustersTPC[2];            //->

  TH1F* fhChi2PerClusterITS[2];       //->
  TH1F* fhChi2PerClusterTPC[2];       //->

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

  TH1F* fhDXY[2];                     //->
  TH1F* fhDZ[2];                      //->
  TH1F* fhDXYDZ[2];                   //-> absolute distance sqrt(dxy**2 + dz**2) to vertex
  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

  ClassDef(AliESDtrackCuts, 2)
};


#endif
Commit	Line	Data
73318471	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
524916f0	8	// returns kTRUE/kFALSE or GetAcceptedTracks which takes an AliESDEvent
73318471	9	// object and returns an TObjArray (of AliESDtracks) with the tracks
	10	// in the ESD that survived the cuts.
	11	//
	12	//
524916f0	13	// TODO:
73318471	14	// - add functionality to save and load cuts
73318471	15	// - add histograms for kinematic cut variables?
	16	// - upper and lower cuts for all (non-boolean) cuts
	17	// - update print method
73318471	18	// - put comments to each variable
	19	//
	20
	21	#ifndef ALIESDTRACKCUTS_H
	22	#define ALIESDTRACKCUTS_H
	23
	24	#include <TF1.h>
	25	#include <TH2.h>
	26	#include "AliAnalysisCuts.h"
	27
73318471	28	class AliESDEvent;
	29	class AliESDtrack;
	30	class AliLog;
	31	class TTree;
	32
	33	class AliESDtrackCuts : public AliAnalysisCuts
	34	{
	35	public:
	36	AliESDtrackCuts(const Char_t* name = "AliESDtrackCuts", const Char_t* title = "");
	37	virtual ~AliESDtrackCuts();
36853ddd	38
73318471	39	Bool_t IsSelected(TObject* obj)
73318471	40	{return AcceptTrack((AliESDtrack*)obj);}
264ebaac	41	Bool_t IsSelected(TList* /list/) {return kTRUE;}
36853ddd	42
73318471	43	Bool_t AcceptTrack(AliESDtrack* esdTrack);
74687314	44	TObjArray* GetAcceptedTracks(AliESDEvent* esd, Bool_t bTPC = kFALSE);
73318471	45	Int_t CountAcceptedTracks(AliESDEvent* esd);
73318471	46
524916f0	47	static AliESDtrack* GetTPCOnlyTrack(AliESDEvent* esd, Int_t iTrack);
524916f0	48
73318471	49	virtual Long64_t Merge(TCollection* list);
	50	virtual void Copy(TObject &c) const;
	51	AliESDtrackCuts(const AliESDtrackCuts& pd); // Copy Constructor
	52	AliESDtrackCuts &operator=(const AliESDtrackCuts &c);
	53
	54	//######################################################
	55	// track quality cut setters
	56	void SetMinNClustersTPC(Int_t min=-1) {fCutMinNClusterTPC=min;}
	57	void SetMinNClustersITS(Int_t min=-1) {fCutMinNClusterITS=min;}
	58	void SetMaxChi2PerClusterTPC(Float_t max=1e10) {fCutMaxChi2PerClusterTPC=max;}
	59	void SetMaxChi2PerClusterITS(Float_t max=1e10) {fCutMaxChi2PerClusterITS=max;}
	60	void SetRequireTPCRefit(Bool_t b=kFALSE) {fCutRequireTPCRefit=b;}
	61	void SetRequireITSRefit(Bool_t b=kFALSE) {fCutRequireITSRefit=b;}
	62	void SetAcceptKingDaughters(Bool_t b=kFALSE) {fCutAcceptKinkDaughters=b;}
	63	void SetMaxCovDiagonalElements(Float_t c1=1e10, Float_t c2=1e10, Float_t c3=1e10, Float_t c4=1e10, Float_t c5=1e10)
	64	{fCutMaxC11=c1; fCutMaxC22=c2; fCutMaxC33=c3; fCutMaxC44=c4; fCutMaxC55=c5;}
	65
	66	// track to vertex cut setters
	67	void SetMinNsigmaToVertex(Float_t sigma=1e10) {fCutNsigmaToVertex = sigma;}
	68	void SetRequireSigmaToVertex(Bool_t b=kTRUE ) {fCutSigmaToVertexRequired = b;}
524916f0	69	void SetDCAToVertex(Float_t dist=1e10) {fCutDCAToVertex = dist;}
e4617f4e	70	void SetDCAToVertexXY(Float_t dist=1e10) {fCutDCAToVertexXY = dist;}
74687314	71	void SetDCAToVertexZ(Float_t dist=1e10) {fCutDCAToVertexZ = dist;}
73318471	72
73318471	73	// getters
73318471	74
5ce43eaf	75	Int_t GetMinNClusterTPC() const { return fCutMinNClusterTPC;}
	76	Int_t GetMinNClustersITS() const { return fCutMinNClusterITS;}
	77	Float_t GetMaxChi2PerClusterTPC() const { return fCutMaxChi2PerClusterTPC;}
	78	Float_t GetMaxChi2PerClusterITS() const { return fCutMaxChi2PerClusterITS;}
	79	Bool_t GetRequireTPCRefit() const { return fCutRequireTPCRefit;}
	80	Bool_t GetRequireITSRefit() const { return fCutRequireITSRefit;}
	81	Bool_t GetAcceptKingDaughters() const { return fCutAcceptKinkDaughters;}
	82	void GetMaxCovDiagonalElements(Float_t& c1, Float_t& c2, Float_t& c3, Float_t& c4, Float_t& c5)
	83	{c1 = fCutMaxC11; c2 = fCutMaxC22; c3 = fCutMaxC33; c4 = fCutMaxC44; c5 = fCutMaxC55;}
	84	Float_t GetMinNsigmaToVertex() const { return fCutNsigmaToVertex;}
f34cc45a	85	Float_t GetDCAToVertex() const { return fCutDCAToVertex;}
e4617f4e	86	Float_t GetDCAToVertexXY() const { return fCutDCAToVertexXY;}
5ce43eaf	87	Bool_t GetRequireSigmaToVertex( ) const { return fCutSigmaToVertexRequired;}
5ac99092	88
	89	void GetPRange(Float_t& r1, Float_t& r2) {r1=fPMin; r2=fPMax;}
	90	void GetPtRange(Float_t& r1, Float_t& r2) {r1=fPtMin; r2=fPtMax;}
	91	void GetPxRange(Float_t& r1, Float_t& r2) {r1=fPxMin; r2=fPxMax;}
	92	void GetPyRange(Float_t& r1, Float_t& r2) {r1=fPyMin; r2=fPyMax;}
	93	void GetPzRange(Float_t& r1, Float_t& r2) {r1=fPzMin; r2=fPzMax;}
	94	void GetEtaRange(Float_t& r1, Float_t& r2) {r1=fEtaMin; r2=fEtaMax;}
	95	void GetRapRange(Float_t& r1, Float_t& r2) {r1=fRapMin; r2=fRapMax;}
74687314	96
73318471	97	// track kinmatic cut setters
	98	void SetPRange(Float_t r1=0, Float_t r2=1e10) {fPMin=r1; fPMax=r2;}
	99	void SetPtRange(Float_t r1=0, Float_t r2=1e10) {fPtMin=r1; fPtMax=r2;}
	100	void SetPxRange(Float_t r1=-1e10, Float_t r2=1e10) {fPxMin=r1; fPxMax=r2;}
	101	void SetPyRange(Float_t r1=-1e10, Float_t r2=1e10) {fPyMin=r1; fPyMax=r2;}
	102	void SetPzRange(Float_t r1=-1e10, Float_t r2=1e10) {fPzMin=r1; fPzMax=r2;}
	103	void SetEtaRange(Float_t r1=-1e10, Float_t r2=1e10) {fEtaMin=r1; fEtaMax=r2;}
	104	void SetRapRange(Float_t r1=-1e10, Float_t r2=1e10) {fRapMin=r1; fRapMax=r2;}
	105
	106	//######################################################
	107	void SetHistogramsOn(Bool_t b=kFALSE) {fHistogramsOn = b;}
	108	void DefineHistograms(Int_t color=1);
	109	virtual Bool_t LoadHistograms(const Char_t* dir = 0);
	110	void SaveHistograms(const Char_t* dir = 0);
	111	void DrawHistograms();
	112
57fddfbc	113	static Float_t GetSigmaToVertex(AliESDtrack* esdTrack);
73318471	114
	115	static void EnableNeededBranches(TTree* tree);
	116
	117	// void SaveQualityCuts(Char_t* file)
	118	// void LoadQualityCuts(Char_t* file)
	119
	120	TH1* GetDZNormalized(Int_t i) const { return fhDZNormalized[i]; }
	121
	122	protected:
	123	void Init(); // sets everything to 0
	124
74687314	125	enum { kNCuts = 24 };
73318471	126
	127	//######################################################
	128	// esd track quality cuts
	129	static const Char_t* fgkCutNames[kNCuts]; //! names of cuts (for internal use)
	130
	131	Int_t fCutMinNClusterTPC; // min number of tpc clusters
	132	Int_t fCutMinNClusterITS; // min number of its clusters
	133
	134	Float_t fCutMaxChi2PerClusterTPC; // max tpc fit chi2 per tpc cluster
	135	Float_t fCutMaxChi2PerClusterITS; // max its fit chi2 per its cluster
	136
	137	Float_t fCutMaxC11; // max cov. matrix diag. elements (res. y^2)
	138	Float_t fCutMaxC22; // max cov. matrix diag. elements (res. z^2)
	139	Float_t fCutMaxC33; // max cov. matrix diag. elements (res. sin(phi)^2)
	140	Float_t fCutMaxC44; // max cov. matrix diag. elements (res. tan(theta_dip)^2)
	141	Float_t fCutMaxC55; // max cov. matrix diag. elements (res. 1/pt^2)
	142
	143	Bool_t fCutAcceptKinkDaughters; // accepting kink daughters?
	144	Bool_t fCutRequireTPCRefit; // require TPC refit
	145	Bool_t fCutRequireITSRefit; // require ITS refit
	146
	147	// track to vertex cut
	148	Float_t fCutNsigmaToVertex; // max number of estimated sigma from track-to-vertex
	149	Bool_t fCutSigmaToVertexRequired; // cut track if sigma from track-to-vertex could not be calculated
524916f0	150	Float_t fCutDCAToVertex; // track-to-vertex cut in absolute distance
e4617f4e	151	Float_t fCutDCAToVertexXY; // track-to-vertex cut in absolute distance in xy-plane
74687314	152	Float_t fCutDCAToVertexZ; // track-to-vertex cut in absolute distance in z-plane
73318471	153
	154	// esd kinematics cuts
	155	Float_t fPMin, fPMax; // definition of the range of the P
	156	Float_t fPtMin, fPtMax; // definition of the range of the Pt
	157	Float_t fPxMin, fPxMax; // definition of the range of the Px
	158	Float_t fPyMin, fPyMax; // definition of the range of the Py
	159	Float_t fPzMin, fPzMax; // definition of the range of the Pz
	160	Float_t fEtaMin, fEtaMax; // definition of the range of the eta
	161	Float_t fRapMin, fRapMax; // definition of the range of the y
	162
	163	//######################################################
	164	// diagnostics histograms
	165	Bool_t fHistogramsOn; // histograms on/off
	166
	167	TH1F* fhNClustersITS[2]; //->
	168	TH1F* fhNClustersTPC[2]; //->
	169
	170	TH1F* fhChi2PerClusterITS[2]; //->
	171	TH1F* fhChi2PerClusterTPC[2]; //->
	172
	173	TH1F* fhC11[2]; //->
	174	TH1F* fhC22[2]; //->
	175	TH1F* fhC33[2]; //->
	176	TH1F* fhC44[2]; //->
	177	TH1F* fhC55[2]; //->
	178
	179	TH1F* fhDXY[2]; //->
	180	TH1F* fhDZ[2]; //->
524916f0	181	TH1F* fhDXYDZ[2]; //-> absolute distance sqrt(dxy2 + dz2) to vertex
73318471	182	TH2F* fhDXYvsDZ[2]; //->
	183
	184	TH1F* fhDXYNormalized[2]; //->
	185	TH1F* fhDZNormalized[2]; //->
	186	TH2F* fhDXYvsDZNormalized[2]; //->
	187	TH1F* fhNSigmaToVertex[2]; //->
524916f0	188
73318471	189	TH1F* fhPt[2]; //-> pt of esd tracks
	190	TH1F* fhEta[2]; //-> eta of esd tracks
	191
	192	TF1* ffDTheoretical; //-> theoretical distance to vertex normalized (2d gauss)
	193
	194	TH1F* fhCutStatistics; //-> statistics of what cuts the tracks did not survive
	195	TH2F* fhCutCorrelation; //-> 2d statistics plot
	196
	197	ClassDef(AliESDtrackCuts, 2)
	198	};
	199
	200
	201	#endif