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1 | // |
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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 | // |
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12 | // |
13 | // TODO: |
14 | // - add functionality to save and load cuts |
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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? |
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20 | // - put comments to each variable |
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21 | // |
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22 | |
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23 | #ifndef ALIESDTRACKCUTS_H |
24 | #define ALIESDTRACKCUTS_H |
25 | |
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26 | #include <TF1.h> |
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27 | #include <TH2.h> |
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28 | #include "AliAnalysisCuts.h" |
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29 | |
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30 | class AliESD; |
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31 | class AliESDEvent; |
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32 | class AliESDtrack; |
33 | class AliLog; |
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34 | class TTree; |
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35 | |
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36 | class AliESDtrackCuts : public AliAnalysisCuts |
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37 | { |
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38 | public: |
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39 | AliESDtrackCuts(const Char_t* name = "AliESDtrackCuts", const Char_t* title = ""); |
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40 | virtual ~AliESDtrackCuts(); |
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41 | Bool_t IsSelected(TObject* obj) |
42 | {return AcceptTrack((AliESDtrack*)obj);} |
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43 | Bool_t AcceptTrack(AliESDtrack* esdTrack); |
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44 | TObjArray* GetAcceptedTracks(AliESD* esd); |
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45 | Int_t CountAcceptedTracks(AliESD* esd); |
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46 | TObjArray* GetAcceptedTracks(AliESDEvent* esd); |
47 | Int_t CountAcceptedTracks(AliESDEvent* esd); |
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48 | |
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49 | virtual Long64_t Merge(TCollection* list); |
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50 | virtual void Copy(TObject &c) const; |
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51 | AliESDtrackCuts(const AliESDtrackCuts& pd); // Copy Constructor |
52 | AliESDtrackCuts &operator=(const AliESDtrackCuts &c); |
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53 | |
54 | //###################################################### |
55 | // track quality cut setters |
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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;} |
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63 | void SetMaxCovDiagonalElements(Float_t c1=1e99, Float_t c2=1e99, Float_t c3=1e99, Float_t c4=1e99, Float_t c5=1e99) |
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64 | {fCutMaxC11=c1; fCutMaxC22=c2; fCutMaxC33=c3; fCutMaxC44=c4; fCutMaxC55=c5;} |
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65 | |
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66 | // track to vertex cut setters |
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67 | void SetMinNsigmaToVertex(Float_t sigma=1e99) {fCutNsigmaToVertex = sigma;} |
68 | void SetRequireSigmaToVertex(Bool_t b=kTRUE ) {fCutSigmaToVertexRequired = b;} |
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69 | |
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70 | // getters |
71 | Float_t GetMinNsigmaToVertex() { return fCutNsigmaToVertex;} |
72 | Bool_t GetRequireSigmaToVertex( ) { return fCutSigmaToVertexRequired;} |
73 | |
74 | // track kinmatic cut setters |
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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); |
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86 | virtual Bool_t LoadHistograms(const Char_t* dir = 0); |
87 | void SaveHistograms(const Char_t* dir = 0); |
88 | void DrawHistograms(); |
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89 | |
90 | Float_t GetSigmaToVertex(AliESDtrack* esdTrack); |
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91 | |
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92 | static void EnableNeededBranches(TTree* tree); |
93 | |
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94 | // void SaveQualityCuts(Char_t* file) |
95 | // void LoadQualityCuts(Char_t* file) |
96 | |
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97 | TH1* GetDZNormalized(Int_t i) const { return fhDZNormalized[i]; } |
98 | |
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99 | protected: |
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100 | void Init(); // sets everything to 0 |
101 | |
102 | enum { kNCuts = 21 }; |
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103 | |
104 | //###################################################### |
105 | // esd track quality cuts |
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106 | static const Char_t* fgkCutNames[kNCuts]; //! names of cuts (for internal use) |
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107 | |
108 | Int_t fCutMinNClusterTPC; // min number of tpc clusters |
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109 | Int_t fCutMinNClusterITS; // min number of its clusters |
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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 |
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123 | |
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124 | // track to vertex cut |
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125 | Float_t fCutNsigmaToVertex; // max number of estimated sigma from track-to-vertex |
126 | Bool_t fCutSigmaToVertexRequired; // cut track if sigma from track-to-vertex could not be calculated |
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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 | |
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137 | //###################################################### |
138 | // diagnostics histograms |
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139 | Bool_t fHistogramsOn; // histograms on/off |
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140 | |
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141 | TH1F* fhNClustersITS[2]; //-> |
142 | TH1F* fhNClustersTPC[2]; //-> |
143 | |
144 | TH1F* fhChi2PerClusterITS[2]; //-> |
145 | TH1F* fhChi2PerClusterTPC[2]; //-> |
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146 | |
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147 | TH1F* fhC11[2]; //-> |
148 | TH1F* fhC22[2]; //-> |
149 | TH1F* fhC33[2]; //-> |
150 | TH1F* fhC44[2]; //-> |
151 | TH1F* fhC55[2]; //-> |
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152 | |
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153 | TH1F* fhDXY[2]; //-> |
154 | TH1F* fhDZ[2]; //-> |
155 | TH2F* fhDXYvsDZ[2]; //-> |
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156 | |
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157 | TH1F* fhDXYNormalized[2]; //-> |
158 | TH1F* fhDZNormalized[2]; //-> |
159 | TH2F* fhDXYvsDZNormalized[2]; //-> |
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160 | TH1F* fhNSigmaToVertex[2]; //-> |
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161 | |
162 | TF1* ffDTheoretical; //-> theoretical distance to vertex normalized (2d gauss) |
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163 | |
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164 | TH1F* fhCutStatistics; //-> statistics of what cuts the tracks did not survive |
165 | TH2F* fhCutCorrelation; //-> 2d statistics plot |
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166 | |
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167 | ClassDef(AliESDtrackCuts, 1) |
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168 | }; |
169 | |
170 | |
171 | #endif |