[u/mrichter/AliRoot.git] / PWG0 / esdTrackCuts / 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 AliESD
//  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 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?
//  - put comments to each variable
//

#ifndef ALIESDTRACKCUTS_H
#define ALIESDTRACKCUTS_H

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

class AliESD;
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 AcceptTrack(AliESDtrack* esdTrack);
  TObjArray* GetAcceptedTracks(AliESD* esd);
  Int_t CountAcceptedTracks(AliESD* esd);
  TObjArray* GetAcceptedTracks(AliESDEvent* esd);
  Int_t CountAcceptedTracks(AliESDEvent* esd);

  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=1e99) {fCutMaxChi2PerClusterTPC=max;}
  void SetMaxChi2PerClusterITS(Float_t max=1e99) {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=1e99, Float_t c2=1e99, Float_t c3=1e99, Float_t c4=1e99, Float_t c5=1e99) 
    {fCutMaxC11=c1; fCutMaxC22=c2; fCutMaxC33=c3; fCutMaxC44=c4; fCutMaxC55=c5;}

  // track to vertex cut setters
  void SetMinNsigmaToVertex(Float_t sigma=1e99)       {fCutNsigmaToVertex = sigma;}
  void SetRequireSigmaToVertex(Bool_t b=kTRUE )       {fCutSigmaToVertexRequired = b;}

  // getters
  Float_t GetMinNsigmaToVertex()       { return fCutNsigmaToVertex;}
  Bool_t GetRequireSigmaToVertex( )    { return fCutSigmaToVertexRequired;}

  // 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);
  virtual Bool_t LoadHistograms(const Char_t* dir = 0);
  void SaveHistograms(const Char_t* dir = 0);
  void DrawHistograms();

  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 = 21 };

  //######################################################
  // 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

  // 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];                      //->
  TH2F* fhDXYvsDZ[2];                 //->

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

  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, 1)
};


#endif
Commit	Line	Data
5c834ad5	1	//
ab2c1f0d	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 AliESD
	9	// object and returns an TObjArray (of AliESDtracks) with the tracks
	10	// in the ESD that survived the cuts.
	11	//
5c834ad5	12	//
	13	// TODO:
	14	// - add functionality to save and load cuts
5c834ad5	15	// - add different ways to make track to vertex cut
	16	// - add histograms for kinematic cut variables?
	17	// - upper and lower cuts for all (non-boolean) cuts
	18	// - update print method
	19	// - is there a smarter way to manage the cuts?
aa93c798	20	// - put comments to each variable
49dc84d9	21	//
49dc84d9	22
ab2c1f0d	23	#ifndef ALIESDTRACKCUTS_H
	24	#define ALIESDTRACKCUTS_H
	25
129a66bb	26	#include <TF1.h>
aa93c798	27	#include <TH2.h>
88ad8b0a	28	#include "AliAnalysisCuts.h"
5c834ad5	29
aa93c798	30	class AliESD;
70d782ef	31	class AliESDEvent;
aa93c798	32	class AliESDtrack;
aa93c798	33	class AliLog;
5c495d37	34	class TTree;
5c834ad5	35
70d782ef	36	class AliESDtrackCuts : public AliAnalysisCuts
5c834ad5	37	{
ebd60d8e	38	public:
70d782ef	39	AliESDtrackCuts(const Char_t* name = "AliESDtrackCuts", const Char_t* title = "");
aa93c798	40	virtual ~AliESDtrackCuts();
88ad8b0a	41	Bool_t IsSelected(TObject* obj)
88ad8b0a	42	{return AcceptTrack((AliESDtrack*)obj);}
ebd60d8e	43	Bool_t AcceptTrack(AliESDtrack* esdTrack);
ebd60d8e	44	TObjArray* GetAcceptedTracks(AliESD* esd);
c5858666	45	Int_t CountAcceptedTracks(AliESD* esd);
70d782ef	46	TObjArray* GetAcceptedTracks(AliESDEvent* esd);
70d782ef	47	Int_t CountAcceptedTracks(AliESDEvent* esd);
ebd60d8e	48
927c71e5	49	virtual Long64_t Merge(TCollection* list);
ebd60d8e	50	virtual void Copy(TObject &c) const;
0b8a2421	51	AliESDtrackCuts(const AliESDtrackCuts& pd); // Copy Constructor
0b8a2421	52	AliESDtrackCuts &operator=(const AliESDtrackCuts &c);
ebd60d8e	53
	54	//######################################################
	55	// track quality cut setters
ab2c1f0d	56	void SetMinNClustersTPC(Int_t min=-1) {fCutMinNClusterTPC=min;}
	57	void SetMinNClustersITS(Int_t min=-1) {fCutMinNClusterITS=min;}
	58	void SetMaxChi2PerClusterTPC(Float_t max=1e99) {fCutMaxChi2PerClusterTPC=max;}
	59	void SetMaxChi2PerClusterITS(Float_t max=1e99) {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;}
ebd60d8e	63	void SetMaxCovDiagonalElements(Float_t c1=1e99, Float_t c2=1e99, Float_t c3=1e99, Float_t c4=1e99, Float_t c5=1e99)
ab2c1f0d	64	{fCutMaxC11=c1; fCutMaxC22=c2; fCutMaxC33=c3; fCutMaxC44=c4; fCutMaxC55=c5;}
d8594d03	65
ebd60d8e	66	// track to vertex cut setters
ab2c1f0d	67	void SetMinNsigmaToVertex(Float_t sigma=1e99) {fCutNsigmaToVertex = sigma;}
ab2c1f0d	68	void SetRequireSigmaToVertex(Bool_t b=kTRUE ) {fCutSigmaToVertexRequired = b;}
d8594d03	69
70d782ef	70	// getters
	71	Float_t GetMinNsigmaToVertex() { return fCutNsigmaToVertex;}
	72	Bool_t GetRequireSigmaToVertex( ) { return fCutSigmaToVertexRequired;}
	73
	74	// track kinmatic cut setters
ebd60d8e	75	void SetPRange(Float_t r1=0, Float_t r2=1e99) {fPMin=r1; fPMax=r2;}
	76	void SetPtRange(Float_t r1=0, Float_t r2=1e99) {fPtMin=r1; fPtMax=r2;}
	77	void SetPxRange(Float_t r1=-1e99, Float_t r2=1e99) {fPxMin=r1; fPxMax=r2;}
	78	void SetPyRange(Float_t r1=-1e99, Float_t r2=1e99) {fPyMin=r1; fPyMax=r2;}
	79	void SetPzRange(Float_t r1=-1e99, Float_t r2=1e99) {fPzMin=r1; fPzMax=r2;}
	80	void SetEtaRange(Float_t r1=-1e99, Float_t r2=1e99) {fEtaMin=r1; fEtaMax=r2;}
	81	void SetRapRange(Float_t r1=-1e99, Float_t r2=1e99) {fRapMin=r1; fRapMax=r2;}
	82
	83	//######################################################
	84	void SetHistogramsOn(Bool_t b=kFALSE) {fHistogramsOn = b;}
	85	void DefineHistograms(Int_t color=1);
3c4b53f0	86	virtual Bool_t LoadHistograms(const Char_t* dir = 0);
	87	void SaveHistograms(const Char_t* dir = 0);
	88	void DrawHistograms();
2b9019e4	89
2b9019e4	90	Float_t GetSigmaToVertex(AliESDtrack* esdTrack);
ebd60d8e	91
5c495d37	92	static void EnableNeededBranches(TTree* tree);
5c495d37	93
ebd60d8e	94	// void SaveQualityCuts(Char_t* file)
	95	// void LoadQualityCuts(Char_t* file)
	96
3c4b53f0	97	TH1* GetDZNormalized(Int_t i) const { return fhDZNormalized[i]; }
3c4b53f0	98
5c834ad5	99	protected:
ebd60d8e	100	void Init(); // sets everything to 0
	101
	102	enum { kNCuts = 21 };
5c834ad5	103
	104	//######################################################
	105	// esd track quality cuts
8b3563f4	106	static const Char_t* fgkCutNames[kNCuts]; //! names of cuts (for internal use)
ab2c1f0d	107
ab2c1f0d	108	Int_t fCutMinNClusterTPC; // min number of tpc clusters
3c4b53f0	109	Int_t fCutMinNClusterITS; // min number of its clusters
ab2c1f0d	110
	111	Float_t fCutMaxChi2PerClusterTPC; // max tpc fit chi2 per tpc cluster
	112	Float_t fCutMaxChi2PerClusterITS; // max its fit chi2 per its cluster
	113
	114	Float_t fCutMaxC11; // max cov. matrix diag. elements (res. y^2)
	115	Float_t fCutMaxC22; // max cov. matrix diag. elements (res. z^2)
	116	Float_t fCutMaxC33; // max cov. matrix diag. elements (res. sin(phi)^2)
	117	Float_t fCutMaxC44; // max cov. matrix diag. elements (res. tan(theta_dip)^2)
	118	Float_t fCutMaxC55; // max cov. matrix diag. elements (res. 1/pt^2)
	119
	120	Bool_t fCutAcceptKinkDaughters; // accepting kink daughters?
	121	Bool_t fCutRequireTPCRefit; // require TPC refit
	122	Bool_t fCutRequireITSRefit; // require ITS refit
3c4b53f0	123
5c834ad5	124	// track to vertex cut
ab2c1f0d	125	Float_t fCutNsigmaToVertex; // max number of estimated sigma from track-to-vertex
ab2c1f0d	126	Bool_t fCutSigmaToVertexRequired; // cut track if sigma from track-to-vertex could not be calculated
5c834ad5	127
	128	// esd kinematics cuts
	129	Float_t fPMin, fPMax; // definition of the range of the P
	130	Float_t fPtMin, fPtMax; // definition of the range of the Pt
	131	Float_t fPxMin, fPxMax; // definition of the range of the Px
	132	Float_t fPyMin, fPyMax; // definition of the range of the Py
	133	Float_t fPzMin, fPzMax; // definition of the range of the Pz
	134	Float_t fEtaMin, fEtaMax; // definition of the range of the eta
	135	Float_t fRapMin, fRapMax; // definition of the range of the y
	136
5c834ad5	137	//######################################################
5c834ad5	138	// diagnostics histograms
ab2c1f0d	139	Bool_t fHistogramsOn; // histograms on/off
5c834ad5	140
8b3563f4	141	TH1F* fhNClustersITS[2]; //->
	142	TH1F* fhNClustersTPC[2]; //->
	143
	144	TH1F* fhChi2PerClusterITS[2]; //->
	145	TH1F* fhChi2PerClusterTPC[2]; //->
5c834ad5	146
8b3563f4	147	TH1F* fhC11[2]; //->
	148	TH1F* fhC22[2]; //->
	149	TH1F* fhC33[2]; //->
	150	TH1F* fhC44[2]; //->
	151	TH1F* fhC55[2]; //->
5c834ad5	152
8b3563f4	153	TH1F* fhDXY[2]; //->
	154	TH1F* fhDZ[2]; //->
	155	TH2F* fhDXYvsDZ[2]; //->
5c834ad5	156
8b3563f4	157	TH1F* fhDXYNormalized[2]; //->
	158	TH1F* fhDZNormalized[2]; //->
	159	TH2F* fhDXYvsDZNormalized[2]; //->
3c4b53f0	160	TH1F* fhNSigmaToVertex[2]; //->
129a66bb	161
129a66bb	162	TF1* ffDTheoretical; //-> theoretical distance to vertex normalized (2d gauss)
5c834ad5	163
8b3563f4	164	TH1F* fhCutStatistics; //-> statistics of what cuts the tracks did not survive
8b3563f4	165	TH2F* fhCutCorrelation; //-> 2d statistics plot
aa617804	166
8b3563f4	167	ClassDef(AliESDtrackCuts, 1)
5c834ad5	168	};
	169
	170
	171	#endif