[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 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 IsSelected(TList* /*list*/) {return kTRUE;}

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

  // 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;}
  Bool_t  GetRequireSigmaToVertex( ) const   { return fCutSigmaToVertexRequired;}
  
  // 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();

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