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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 | // - implement destructor !!! |
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22 | // |
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23 | |
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24 | #ifndef ALIESDTRACKCUTS_H |
25 | #define ALIESDTRACKCUTS_H |
26 | |
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27 | #include <TObject.h> |
28 | #include <TH2.h> |
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29 | |
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30 | class AliESD; |
31 | class AliESDtrack; |
32 | class AliLog; |
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33 | |
34 | class AliESDtrackCuts : public TObject |
35 | { |
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36 | |
37 | public: |
38 | AliESDtrackCuts(); |
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39 | virtual ~AliESDtrackCuts(); |
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40 | |
41 | Bool_t AcceptTrack(AliESDtrack* esdTrack); |
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42 | TObjArray* GetAcceptedTracks(AliESD* esd); |
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43 | Int_t CountAcceptedTracks(AliESD* esd); |
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44 | |
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45 | virtual Long64_t Merge(TCollection* list); |
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46 | virtual void Copy(TObject &c) const; |
47 | |
48 | //###################################################### |
49 | // track quality cut setters |
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50 | void SetMinNClustersTPC(Int_t min=-1) {fCutMinNClusterTPC=min;} |
51 | void SetMinNClustersITS(Int_t min=-1) {fCutMinNClusterITS=min;} |
52 | void SetMaxChi2PerClusterTPC(Float_t max=1e99) {fCutMaxChi2PerClusterTPC=max;} |
53 | void SetMaxChi2PerClusterITS(Float_t max=1e99) {fCutMaxChi2PerClusterITS=max;} |
54 | void SetRequireTPCRefit(Bool_t b=kFALSE) {fCutRequireTPCRefit=b;} |
55 | void SetRequireITSRefit(Bool_t b=kFALSE) {fCutRequireITSRefit=b;} |
56 | void SetAcceptKingDaughters(Bool_t b=kFALSE) {fCutAcceptKinkDaughters=b;} |
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57 | 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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58 | {fCutMaxC11=c1; fCutMaxC22=c2; fCutMaxC33=c3; fCutMaxC44=c4; fCutMaxC55=c5;} |
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59 | |
60 | // track to vertex cut setters |
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61 | void SetMinNsigmaToVertex(Float_t sigma=1e99) {fCutNsigmaToVertex = sigma;} |
62 | void SetRequireSigmaToVertex(Bool_t b=kTRUE ) {fCutSigmaToVertexRequired = b;} |
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63 | |
64 | // track kinmatic cut setters |
65 | void SetPRange(Float_t r1=0, Float_t r2=1e99) {fPMin=r1; fPMax=r2;} |
66 | void SetPtRange(Float_t r1=0, Float_t r2=1e99) {fPtMin=r1; fPtMax=r2;} |
67 | void SetPxRange(Float_t r1=-1e99, Float_t r2=1e99) {fPxMin=r1; fPxMax=r2;} |
68 | void SetPyRange(Float_t r1=-1e99, Float_t r2=1e99) {fPyMin=r1; fPyMax=r2;} |
69 | void SetPzRange(Float_t r1=-1e99, Float_t r2=1e99) {fPzMin=r1; fPzMax=r2;} |
70 | void SetEtaRange(Float_t r1=-1e99, Float_t r2=1e99) {fEtaMin=r1; fEtaMax=r2;} |
71 | void SetRapRange(Float_t r1=-1e99, Float_t r2=1e99) {fRapMin=r1; fRapMax=r2;} |
72 | |
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73 | Float_t GetMinNsigmaToVertex() { return fCutNsigmaToVertex; } |
74 | |
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75 | //###################################################### |
76 | void SetHistogramsOn(Bool_t b=kFALSE) {fHistogramsOn = b;} |
77 | void DefineHistograms(Int_t color=1); |
78 | void SaveHistograms(Char_t* dir="track_selection"); |
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79 | |
80 | Float_t GetSigmaToVertex(AliESDtrack* esdTrack); |
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81 | |
82 | virtual void Print(const Option_t* = "") const; |
83 | |
84 | // void SaveQualityCuts(Char_t* file) |
85 | // void LoadQualityCuts(Char_t* file) |
86 | |
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87 | protected: |
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88 | void Init(); // sets everything to 0 |
89 | |
90 | enum { kNCuts = 21 }; |
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91 | |
92 | //###################################################### |
93 | // esd track quality cuts |
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94 | static const Char_t* fgkCutNames[kNCuts]; //! names of cuts (for internal use) |
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95 | |
96 | Int_t fCutMinNClusterTPC; // min number of tpc clusters |
97 | Int_t fCutMinNClusterITS; // min number of its clusters |
98 | |
99 | Float_t fCutMaxChi2PerClusterTPC; // max tpc fit chi2 per tpc cluster |
100 | Float_t fCutMaxChi2PerClusterITS; // max its fit chi2 per its cluster |
101 | |
102 | Float_t fCutMaxC11; // max cov. matrix diag. elements (res. y^2) |
103 | Float_t fCutMaxC22; // max cov. matrix diag. elements (res. z^2) |
104 | Float_t fCutMaxC33; // max cov. matrix diag. elements (res. sin(phi)^2) |
105 | Float_t fCutMaxC44; // max cov. matrix diag. elements (res. tan(theta_dip)^2) |
106 | Float_t fCutMaxC55; // max cov. matrix diag. elements (res. 1/pt^2) |
107 | |
108 | Bool_t fCutAcceptKinkDaughters; // accepting kink daughters? |
109 | Bool_t fCutRequireTPCRefit; // require TPC refit |
110 | Bool_t fCutRequireITSRefit; // require ITS refit |
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111 | |
112 | // track to vertex cut |
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113 | Float_t fCutNsigmaToVertex; // max number of estimated sigma from track-to-vertex |
114 | Bool_t fCutSigmaToVertexRequired; // cut track if sigma from track-to-vertex could not be calculated |
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115 | |
116 | // esd kinematics cuts |
117 | Float_t fPMin, fPMax; // definition of the range of the P |
118 | Float_t fPtMin, fPtMax; // definition of the range of the Pt |
119 | Float_t fPxMin, fPxMax; // definition of the range of the Px |
120 | Float_t fPyMin, fPyMax; // definition of the range of the Py |
121 | Float_t fPzMin, fPzMax; // definition of the range of the Pz |
122 | Float_t fEtaMin, fEtaMax; // definition of the range of the eta |
123 | Float_t fRapMin, fRapMax; // definition of the range of the y |
124 | |
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125 | //###################################################### |
126 | // diagnostics histograms |
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127 | Bool_t fHistogramsOn; // histograms on/off |
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128 | |
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129 | TH1F* fhNClustersITS[2]; //-> |
130 | TH1F* fhNClustersTPC[2]; //-> |
131 | |
132 | TH1F* fhChi2PerClusterITS[2]; //-> |
133 | TH1F* fhChi2PerClusterTPC[2]; //-> |
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134 | |
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135 | TH1F* fhC11[2]; //-> |
136 | TH1F* fhC22[2]; //-> |
137 | TH1F* fhC33[2]; //-> |
138 | TH1F* fhC44[2]; //-> |
139 | TH1F* fhC55[2]; //-> |
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140 | |
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141 | TH1F* fhDXY[2]; //-> |
142 | TH1F* fhDZ[2]; //-> |
143 | TH2F* fhDXYvsDZ[2]; //-> |
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144 | |
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145 | TH1F* fhDXYNormalized[2]; //-> |
146 | TH1F* fhDZNormalized[2]; //-> |
147 | TH2F* fhDXYvsDZNormalized[2]; //-> |
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148 | |
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149 | TH1F* fhCutStatistics; //-> statistics of what cuts the tracks did not survive |
150 | TH2F* fhCutCorrelation; //-> 2d statistics plot |
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151 | |
152 | private: |
153 | |
154 | AliESDtrackCuts(const AliESDtrackCuts& pd); // Copy Constructor |
155 | AliESDtrackCuts &operator=(const AliESDtrackCuts &c); |
156 | |
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157 | |
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158 | ClassDef(AliESDtrackCuts, 1) |
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159 | }; |
160 | |
161 | |
162 | #endif |