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563113d0 | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
7 | * Permission to use, copy, modify and distribute this software and its * | |
8 | * documentation strictly for non-commercial purposes is hereby granted * | |
9 | * without fee, provided that the above copyright notice appears in all * | |
10 | * copies and that both the copyright notice and this permission notice * | |
11 | * appear in the supporting documentation. The authors make no claims * | |
12 | * about the suitability of this software for any purpose. It is * | |
13 | * provided "as is" without express or implied warranty. * | |
14 | **************************************************************************/ | |
15 | ||
16 | // The class AliCFTrackIsPrimaryCut is designed to select reconstructed tracks | |
17 | // with a small impact parameter and tracks which are (not) daughters of kink | |
18 | // decays and to provide corresponding QA histograms. | |
19 | // This class inherits from the Analysis' Framework abstract base class | |
20 | // AliAnalysisCuts and is a part of the Correction Framework. | |
21 | // This class acts on single, reconstructed tracks, it is applicable on | |
22 | // ESD and AOD data. | |
23 | // It mainly consists of a IsSelected function that returns a boolean. | |
24 | // This function checks whether the considered track passes a set of cuts: | |
89d7d478 | 25 | // - min. and max. distance to main vertex in transverse plane (xy) |
26 | // - min. and max. longitudinal distance to main vertex (z) | |
27 | // - min. and max. distance to main vertex as ellpise in xy - z plane | |
28 | // - all above cuts on absolute values or in units of sigma (resolution) | |
29 | // - min. and max. distance to main vertex in units of sigma (resolution) | |
30 | // - max. transverse (xy) and longitudinal (z) impact parameter resolution | |
563113d0 | 31 | // - require that the dca calculation doesn't fail |
32 | // - accept or not accept daughter tracks of kink decays | |
33 | // | |
c66800ea | 34 | // By default, the distance to 'vertex calculated from tracks' is used. |
c2c45ca4 | 35 | // Optionally the SPD (tracklet based) or TPC (TPC only tracks based) vertex |
36 | // can be used. | |
37 | // Note: the distance to the TPC-vertex is already stored in the ESD, | |
38 | // the distance to the SPD-vertex has to be re-calculated by propagating each | |
39 | // track while executing this cut. | |
c66800ea | 40 | // |
563113d0 | 41 | // The cut values for these cuts are set with the corresponding set functions. |
42 | // All cut classes provided by the correction framework are supposed to be | |
43 | // added in the Analysis Framwork's class AliAnalysisFilter and applied by | |
44 | // the filter via a loop. | |
45 | // | |
46 | // author: I. Kraus (Ingrid.Kraus@cern.ch) | |
47 | // idea taken form | |
48 | // AliESDtrackCuts writte by Jan Fiete Grosse-Oetringhaus and | |
49 | // AliRsnDaughterCut class written by A. Pulvirenti. | |
50 | ||
51 | #ifndef ALICFTRACKISPRIMARYCUTS_H | |
52 | #define ALICFTRACKISPRIMARYCUTS_H | |
53 | ||
54 | #include "AliCFCutBase.h" | |
8edd0c2c | 55 | #include "AliAODTrack.h" |
045e6d86 | 56 | #include <TH2.h> |
89d7d478 | 57 | #include "AliESDtrackCuts.h" |
563113d0 | 58 | class TBits; |
c2c45ca4 | 59 | class AliESDtrack; |
8f7575ff | 60 | class AliESDEvent; |
563113d0 | 61 | |
62 | class AliCFTrackIsPrimaryCuts : public AliCFCutBase | |
63 | { | |
64 | public : | |
65 | AliCFTrackIsPrimaryCuts() ; | |
66 | AliCFTrackIsPrimaryCuts(Char_t* name, Char_t* title) ; | |
67 | AliCFTrackIsPrimaryCuts(const AliCFTrackIsPrimaryCuts& c) ; | |
68 | AliCFTrackIsPrimaryCuts& operator=(const AliCFTrackIsPrimaryCuts& c) ; | |
69 | ~AliCFTrackIsPrimaryCuts(); | |
70 | void Copy(TObject &c) const; | |
71 | ||
563113d0 | 72 | Bool_t IsSelected(TObject* obj); |
264ebaac | 73 | Bool_t IsSelected(TList* /*list*/) {return kTRUE;} |
563113d0 | 74 | |
75 | // cut value setter | |
c2c45ca4 | 76 | void UseSPDvertex(Bool_t b=kFALSE); |
77 | void UseTPCvertex(Bool_t b=kFALSE); | |
89d7d478 | 78 | void SetMinDCAToVertexXY(Float_t dist=0.) {fMinDCAToVertexXY = dist;} |
79 | void SetMinDCAToVertexZ(Float_t dist=0.) {fMinDCAToVertexZ = dist;} | |
80 | void SetMaxDCAToVertexXY(Float_t dist=1e10) {fMaxDCAToVertexXY = dist;} | |
81 | void SetMaxDCAToVertexZ(Float_t dist=1e10) {fMaxDCAToVertexZ = dist;} | |
82 | void SetDCAToVertex2D(Bool_t b=kFALSE) {fDCAToVertex2D = b;} | |
83 | void SetAbsDCAToVertex(Bool_t b=kTRUE) {fAbsDCAToVertex = b;} | |
84 | void SetMinNSigmaToVertex(Double_t sigmaMin=0.) {fNSigmaToVertexMin = sigmaMin;} | |
85 | void SetMaxNSigmaToVertex(Double_t sigmaMax=1.e+10) {fNSigmaToVertexMax = sigmaMax;} | |
86 | void SetMaxSigmaDCAxy(Double_t sigmaMax=1.e+10) {fSigmaDCAxy = sigmaMax;} | |
87 | void SetMaxSigmaDCAz(Double_t sigmaMax=1.e+10) {fSigmaDCAz = sigmaMax;} | |
88 | void SetRequireSigmaToVertex(Bool_t b=kFALSE) {fRequireSigmaToVertex=b;} | |
89 | void SetAcceptKinkDaughters(Bool_t b=kTRUE) {fAcceptKinkDaughters=b;} | |
90 | void SetAODType(Char_t type=AliAODTrack::kUndef) {fAODType = type;} | |
563113d0 | 91 | |
92 | // QA histograms | |
563113d0 | 93 | void DrawHistograms(); |
94 | void SaveHistograms(const Char_t* dir = 0); | |
107a3100 | 95 | void AddQAHistograms(TList *qaList); |
563113d0 | 96 | // QA histogram setter |
97 | // please use indices from the enumeration below | |
98 | void SetHistogramBins(Int_t index, Int_t nbins, Double_t *bins); | |
99 | void SetHistogramBins(Int_t index, Int_t nbins, Double_t xmin, Double_t xmax); | |
0c01ae65 | 100 | virtual void SetRecEventInfo(const TObject* esd) ; |
563113d0 | 101 | |
102 | // indeces/counters for single selections | |
103 | enum { | |
104 | kCutNSigmaToVertex=0, // tracks's distance to main vertex in units of sigma | |
105 | kCutRequireSigmaToVertex, // calculation is successful | |
106 | kCutAcceptKinkDaughters, // do (not) accept secondaries | |
107 | kDcaXY, // controll histogram: dca in xy plane | |
108 | kDcaZ, // controll histogram: dca along z axis | |
109 | kDcaXYnorm, // controll histogram: normalised dca in xy plane | |
110 | kDcaZnorm, // controll histogram: normalised dca along z axis | |
89d7d478 | 111 | kSigmaDcaXY, // controll histogram: impact parameter resolution in transverse plane |
112 | kSigmaDcaZ, // controll histogram: impact parameter resolution along z axis | |
8edd0c2c | 113 | kCutAODType, // cut on AliAODTrack::fType |
89d7d478 | 114 | kNCuts=9, // number of single selections |
563113d0 | 115 | kNStepQA=2, // number of QA steps (before/after the cuts) |
89d7d478 | 116 | kNHist=9 // number of QA histograms |
563113d0 | 117 | }; |
118 | ||
119 | private: | |
107a3100 | 120 | void SelectionBitMap(TObject* obj); |
c66800ea | 121 | void GetDCA(AliESDtrack* esdTrack); |
563113d0 | 122 | void DefineHistograms(); // books histograms and TList |
123 | void Initialise(); // sets everything to 0 | |
124 | void FillHistograms(TObject* obj, Bool_t b); | |
125 | // Fills histograms before and after cuts | |
8f7575ff | 126 | AliESDEvent* fESD; // pointer to event, needed for SPD vertex |
c2c45ca4 | 127 | Bool_t fUseSPDvertex; // flag: calculate dca to SPD-vertex, off by default |
c66800ea | 128 | Bool_t fUseTPCvertex; // flag: calculate dca to TPC-vertex, off by default |
89d7d478 | 129 | Double_t fMinDCAToVertexXY; // cut value: min distance to main vertex in transverse plane |
130 | Double_t fMinDCAToVertexZ; // cut value: min longitudinal distance to main vertex | |
131 | Double_t fMaxDCAToVertexXY; // cut value: max distance to main vertex in transverse plane | |
132 | Double_t fMaxDCAToVertexZ; // cut value: max longitudinal distance to main vertex | |
133 | Bool_t fDCAToVertex2D; // flag: cut on ellipse in xy - z plane | |
134 | Bool_t fAbsDCAToVertex; // flag: cut on absolute values or in units of sigma | |
135 | Double_t fNSigmaToVertexMin; // cut value: min distance to main vertex in units of sigma | |
107a3100 | 136 | Double_t fNSigmaToVertexMax; // cut value: max distance to main vertex in units of sigma |
89d7d478 | 137 | Double_t fSigmaDCAxy; // cut value: impact parameter resolution in xy plane |
138 | Double_t fSigmaDCAz; // cut value: impact parameter resolution in z direction | |
c66800ea | 139 | Double_t fDCA[6]; // impact parameters |
8edd0c2c | 140 | Bool_t fRequireSigmaToVertex; // require calculable distance to main vertex |
141 | Char_t fAODType; // type of AOD track (undef, primary, secondary, orphan) | |
142 | // applicable at AOD level only ! | |
563113d0 | 143 | |
144 | TH2F* fhDcaXYvsDcaZ[2]; // Histogram: dca xy vs. z | |
c66800ea | 145 | Bool_t fAcceptKinkDaughters; // accepting kink daughters |
563113d0 | 146 | |
045e6d86 | 147 | TH1F* fhCutStatistics; // Histogram: statistics of what cuts the tracks did not survive |
148 | TH2F* fhCutCorrelation; // Histogram: 2d statistics plot | |
563113d0 | 149 | |
150 | TH1F* fhQA[kNHist][kNStepQA]; // QA Histograms | |
045e6d86 | 151 | TBits *fBitmap ; // stores single selection decisions |
563113d0 | 152 | |
153 | // QA histogram setters | |
db6722a5 | 154 | Int_t fhNBinsNSigma; // number of bins+1: dca in units of sigma |
155 | Int_t fhNBinsRequireSigma; // number of bins+1: require successful calcuation | |
156 | Int_t fhNBinsAcceptKink; // number of bins+1: acceptkink daughters | |
157 | Int_t fhNBinsDcaXY; // number of bins+1: dca in transverse plane | |
158 | Int_t fhNBinsDcaZ; // number of bins+1: dca along beam axis | |
159 | Int_t fhNBinsDcaXYnorm; // number of bins+1: normalised dca in transverse plane | |
160 | Int_t fhNBinsDcaZnorm; // number of bins+1: normalised dca along beam axis | |
89d7d478 | 161 | Int_t fhNBinsSigmaDcaXY; // number of bins+1: impact parameter resolution in transverse plane |
162 | Int_t fhNBinsSigmaDcaZ; // number of bins+1: impact parameter resolution along beam axis | |
045e6d86 | 163 | |
164 | Double_t *fhBinLimNSigma; //[fhNBinsNSigma] bin limits: dca in units of sigma | |
165 | Double_t *fhBinLimRequireSigma;//[fhNBinsRequireSigma] bin limits: require successful calcuation | |
166 | Double_t *fhBinLimAcceptKink;//[fhNBinsAcceptKink] bin limits: acceptkink daughters | |
167 | Double_t *fhBinLimDcaXY;//[fhNBinsDcaXY] bin limits: dca in transverse plane | |
168 | Double_t *fhBinLimDcaZ; //[fhNBinsDcaZ] bin limits: dca along beam axis | |
169 | Double_t *fhBinLimDcaXYnorm; //[fhNBinsDcaXYnorm] bin limits: normalised dca in transverse plane | |
170 | Double_t *fhBinLimDcaZnorm;//[fhNBinsDcaZnorm] bin limits: normalised dca along beam axis | |
89d7d478 | 171 | Double_t *fhBinLimSigmaDcaXY; //[fhNBinsSigmaDcaXY] bin limits: impact parameter in transverse plane |
172 | Double_t *fhBinLimSigmaDcaZ; //[fhNBinsSigmaDcaZ] bin limits: impact parameter along beam axis | |
045e6d86 | 173 | |
8edd0c2c | 174 | ClassDef(AliCFTrackIsPrimaryCuts,3); |
563113d0 | 175 | }; |
176 | ||
177 | #endif |