[u/mrichter/AliRoot.git] / PWG2 / 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 <TNamed.h>
#include <TF1.h>
#include <TH2.h>

class AliESD;
class AliESDtrack;
class AliLog;
class TTree;

class AliESDtrackCuts : public TNamed 
{

public:
  AliESDtrackCuts();
  AliESDtrackCuts(Char_t* name, Char_t* title="");
  virtual ~AliESDtrackCuts();

  Bool_t AcceptTrack(AliESDtrack* esdTrack);
  TObjArray* GetAcceptedTracks(AliESD* esd);
  Int_t CountAcceptedTracks(AliESD* 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;}

  // 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;}

  Float_t GetMinNsigmaToVertex() { return fCutNsigmaToVertex; } 

  //######################################################
  void SetHistogramsOn(Bool_t b=kFALSE) {fHistogramsOn = b;}
  void DefineHistograms(Int_t color=1);
  void SaveHistograms(Char_t* dir="track_selection");

  Float_t GetSigmaToVertex(AliESDtrack* esdTrack);
  
  virtual void Print(const Option_t* = "") const;

  static void EnableNeededBranches(TTree* tree);

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

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
7dbd4e68	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 <TNamed.h>
	27	#include <TF1.h>
	28	#include <TH2.h>
	29
	30	class AliESD;
	31	class AliESDtrack;
	32	class AliLog;
	33	class TTree;
	34
	35	class AliESDtrackCuts : public TNamed
	36	{
	37
	38	public:
	39	AliESDtrackCuts();
	40	AliESDtrackCuts(Char_t* name, Char_t* title="");
	41	virtual ~AliESDtrackCuts();
	42
	43	Bool_t AcceptTrack(AliESDtrack* esdTrack);
	44	TObjArray* GetAcceptedTracks(AliESD* esd);
	45	Int_t CountAcceptedTracks(AliESD* esd);
	46
	47	virtual Long64_t Merge(TCollection* list);
	48	virtual void Copy(TObject &c) const;
	49	AliESDtrackCuts(const AliESDtrackCuts& pd); // Copy Constructor
	50	AliESDtrackCuts &operator=(const AliESDtrackCuts &c);
	51
	52	//######################################################
	53	// track quality cut setters
	54	void SetMinNClustersTPC(Int_t min=-1) {fCutMinNClusterTPC=min;}
	55	void SetMinNClustersITS(Int_t min=-1) {fCutMinNClusterITS=min;}
	56	void SetMaxChi2PerClusterTPC(Float_t max=1e99) {fCutMaxChi2PerClusterTPC=max;}
	57	void SetMaxChi2PerClusterITS(Float_t max=1e99) {fCutMaxChi2PerClusterITS=max;}
	58	void SetRequireTPCRefit(Bool_t b=kFALSE) {fCutRequireTPCRefit=b;}
	59	void SetRequireITSRefit(Bool_t b=kFALSE) {fCutRequireITSRefit=b;}
	60	void SetAcceptKingDaughters(Bool_t b=kFALSE) {fCutAcceptKinkDaughters=b;}
	61	void SetMaxCovDiagonalElements(Float_t c1=1e99, Float_t c2=1e99, Float_t c3=1e99, Float_t c4=1e99, Float_t c5=1e99)
	62	{fCutMaxC11=c1; fCutMaxC22=c2; fCutMaxC33=c3; fCutMaxC44=c4; fCutMaxC55=c5;}
	63
	64	// track to vertex cut setters
65	void SetMinNsigmaToVertex(Float_t sigma=1e99) {fCutNsigmaToVertex = sigma;}
66	void SetRequireSigmaToVertex(Bool_t b=kTRUE ) {fCutSigmaToVertexRequired = b;}
67
68	// track kinmatic cut setters
69	void SetPRange(Float_t r1=0, Float_t r2=1e99) {fPMin=r1; fPMax=r2;}
70	void SetPtRange(Float_t r1=0, Float_t r2=1e99) {fPtMin=r1; fPtMax=r2;}
71	void SetPxRange(Float_t r1=-1e99, Float_t r2=1e99) {fPxMin=r1; fPxMax=r2;}
72	void SetPyRange(Float_t r1=-1e99, Float_t r2=1e99) {fPyMin=r1; fPyMax=r2;}
73	void SetPzRange(Float_t r1=-1e99, Float_t r2=1e99) {fPzMin=r1; fPzMax=r2;}
74	void SetEtaRange(Float_t r1=-1e99, Float_t r2=1e99) {fEtaMin=r1; fEtaMax=r2;}
75	void SetRapRange(Float_t r1=-1e99, Float_t r2=1e99) {fRapMin=r1; fRapMax=r2;}
76
77	Float_t GetMinNsigmaToVertex() { return fCutNsigmaToVertex; }
78
79	//######################################################
80	void SetHistogramsOn(Bool_t b=kFALSE) {fHistogramsOn = b;}
81	void DefineHistograms(Int_t color=1);
82	void SaveHistograms(Char_t* dir="track_selection");
83
84	Float_t GetSigmaToVertex(AliESDtrack* esdTrack);
85
86	virtual void Print(const Option_t* = "") const;
87
88	static void EnableNeededBranches(TTree* tree);
89
90	// void SaveQualityCuts(Char_t* file)
91	// void LoadQualityCuts(Char_t* file)
92
93	protected:
94	void Init(); // sets everything to 0
95
96	enum { kNCuts = 21 };
97
98	//######################################################
99	// esd track quality cuts
100	static const Char_t* fgkCutNames[kNCuts]; //! names of cuts (for internal use)
101
102	Int_t fCutMinNClusterTPC; // min number of tpc clusters
103	Int_t fCutMinNClusterITS; // min number of its clusters
104
105	Float_t fCutMaxChi2PerClusterTPC; // max tpc fit chi2 per tpc cluster
106	Float_t fCutMaxChi2PerClusterITS; // max its fit chi2 per its cluster
107
108	Float_t fCutMaxC11; // max cov. matrix diag. elements (res. y^2)
109	Float_t fCutMaxC22; // max cov. matrix diag. elements (res. z^2)
110	Float_t fCutMaxC33; // max cov. matrix diag. elements (res. sin(phi)^2)
111	Float_t fCutMaxC44; // max cov. matrix diag. elements (res. tan(theta_dip)^2)
112	Float_t fCutMaxC55; // max cov. matrix diag. elements (res. 1/pt^2)
113
114	Bool_t fCutAcceptKinkDaughters; // accepting kink daughters?
115	Bool_t fCutRequireTPCRefit; // require TPC refit
116	Bool_t fCutRequireITSRefit; // require ITS refit
117
118	// track to vertex cut
119	Float_t fCutNsigmaToVertex; // max number of estimated sigma from track-to-vertex
120	Bool_t fCutSigmaToVertexRequired; // cut track if sigma from track-to-vertex could not be calculated
121
122	// esd kinematics cuts
123	Float_t fPMin, fPMax; // definition of the range of the P
124	Float_t fPtMin, fPtMax; // definition of the range of the Pt
125	Float_t fPxMin, fPxMax; // definition of the range of the Px
126	Float_t fPyMin, fPyMax; // definition of the range of the Py
127	Float_t fPzMin, fPzMax; // definition of the range of the Pz
128	Float_t fEtaMin, fEtaMax; // definition of the range of the eta
129	Float_t fRapMin, fRapMax; // definition of the range of the y
130
131	//######################################################
132	// diagnostics histograms
133	Bool_t fHistogramsOn; // histograms on/off
134
135	TH1F* fhNClustersITS[2]; //->
136	TH1F* fhNClustersTPC[2]; //->
137
138	TH1F* fhChi2PerClusterITS[2]; //->
139	TH1F* fhChi2PerClusterTPC[2]; //->
140
141	TH1F* fhC11[2]; //->
142	TH1F* fhC22[2]; //->
143	TH1F* fhC33[2]; //->
144	TH1F* fhC44[2]; //->
145	TH1F* fhC55[2]; //->
146
147	TH1F* fhDXY[2]; //->
148	TH1F* fhDZ[2]; //->
149	TH2F* fhDXYvsDZ[2]; //->
150
151	TH1F* fhDXYNormalized[2]; //->
152	TH1F* fhDZNormalized[2]; //->
153	TH2F* fhDXYvsDZNormalized[2]; //->
154	TH1F* fhNSigmaToVertex[2]; //->
155
156	TF1* ffDTheoretical; //-> theoretical distance to vertex normalized (2d gauss)
157
158	TH1F* fhCutStatistics; //-> statistics of what cuts the tracks did not survive
159	TH2F* fhCutCorrelation; //-> 2d statistics plot
160
161	ClassDef(AliESDtrackCuts, 1)
162	};
163
164
165	#endif