Coverity
[u/mrichter/AliRoot.git] / CORRFW / AliCFTrackIsPrimaryCuts.h
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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 58class TBits;
c2c45ca4 59class AliESDtrack;
03f487b1 60class AliAODTrack;
61class AliVEvent;
563113d0 62
63class AliCFTrackIsPrimaryCuts : public AliCFCutBase
64{
65 public :
66 AliCFTrackIsPrimaryCuts() ;
67 AliCFTrackIsPrimaryCuts(Char_t* name, Char_t* title) ;
68 AliCFTrackIsPrimaryCuts(const AliCFTrackIsPrimaryCuts& c) ;
69 AliCFTrackIsPrimaryCuts& operator=(const AliCFTrackIsPrimaryCuts& c) ;
70 ~AliCFTrackIsPrimaryCuts();
71 void Copy(TObject &c) const;
72
9eeae5d5 73 Bool_t IsSelected(TObject* obj);
74 Bool_t IsSelected(TList* /*list*/) {return kTRUE;}
563113d0 75
76 // cut value setter
c2c45ca4 77 void UseSPDvertex(Bool_t b=kFALSE);
78 void UseTPCvertex(Bool_t b=kFALSE);
89d7d478 79 void SetMinDCAToVertexXY(Float_t dist=0.) {fMinDCAToVertexXY = dist;}
80 void SetMinDCAToVertexZ(Float_t dist=0.) {fMinDCAToVertexZ = dist;}
81 void SetMaxDCAToVertexXY(Float_t dist=1e10) {fMaxDCAToVertexXY = dist;}
82 void SetMaxDCAToVertexZ(Float_t dist=1e10) {fMaxDCAToVertexZ = dist;}
83 void SetDCAToVertex2D(Bool_t b=kFALSE) {fDCAToVertex2D = b;}
84 void SetAbsDCAToVertex(Bool_t b=kTRUE) {fAbsDCAToVertex = b;}
85 void SetMinNSigmaToVertex(Double_t sigmaMin=0.) {fNSigmaToVertexMin = sigmaMin;}
86 void SetMaxNSigmaToVertex(Double_t sigmaMax=1.e+10) {fNSigmaToVertexMax = sigmaMax;}
87 void SetMaxSigmaDCAxy(Double_t sigmaMax=1.e+10) {fSigmaDCAxy = sigmaMax;}
88 void SetMaxSigmaDCAz(Double_t sigmaMax=1.e+10) {fSigmaDCAz = sigmaMax;}
89 void SetRequireSigmaToVertex(Bool_t b=kFALSE) {fRequireSigmaToVertex=b;}
90 void SetAcceptKinkDaughters(Bool_t b=kTRUE) {fAcceptKinkDaughters=b;}
91 void SetAODType(Char_t type=AliAODTrack::kUndef) {fAODType = type;}
563113d0 92
93 // QA histograms
563113d0 94 void DrawHistograms();
95 void SaveHistograms(const Char_t* dir = 0);
107a3100 96 void AddQAHistograms(TList *qaList);
563113d0 97 // QA histogram setter
98 // please use indices from the enumeration below
99 void SetHistogramBins(Int_t index, Int_t nbins, Double_t *bins);
100 void SetHistogramBins(Int_t index, Int_t nbins, Double_t xmin, Double_t xmax);
03f487b1 101 virtual void SetRecEventInfo(const TObject* esd);
563113d0 102
103 // indeces/counters for single selections
104 enum {
105 kCutNSigmaToVertex=0, // tracks's distance to main vertex in units of sigma
106 kCutRequireSigmaToVertex, // calculation is successful
107 kCutAcceptKinkDaughters, // do (not) accept secondaries
108 kDcaXY, // controll histogram: dca in xy plane
109 kDcaZ, // controll histogram: dca along z axis
110 kDcaXYnorm, // controll histogram: normalised dca in xy plane
111 kDcaZnorm, // controll histogram: normalised dca along z axis
89d7d478 112 kSigmaDcaXY, // controll histogram: impact parameter resolution in transverse plane
113 kSigmaDcaZ, // controll histogram: impact parameter resolution along z axis
8edd0c2c 114 kCutAODType, // cut on AliAODTrack::fType
89d7d478 115 kNCuts=9, // number of single selections
563113d0 116 kNStepQA=2, // number of QA steps (before/after the cuts)
89d7d478 117 kNHist=9 // number of QA histograms
563113d0 118 };
119
120 private:
107a3100 121 void SelectionBitMap(TObject* obj);
c66800ea 122 void GetDCA(AliESDtrack* esdTrack);
03f487b1 123 void GetDCA(AliAODTrack* aodTrack);
563113d0 124 void DefineHistograms(); // books histograms and TList
125 void Initialise(); // sets everything to 0
126 void FillHistograms(TObject* obj, Bool_t b);
127 // Fills histograms before and after cuts
03f487b1 128 AliVEvent* fEvt; // pointer to event, needed for SPD vertex and DCA in AODs
c2c45ca4 129 Bool_t fUseSPDvertex; // flag: calculate dca to SPD-vertex, off by default
c66800ea 130 Bool_t fUseTPCvertex; // flag: calculate dca to TPC-vertex, off by default
89d7d478 131 Double_t fMinDCAToVertexXY; // cut value: min distance to main vertex in transverse plane
132 Double_t fMinDCAToVertexZ; // cut value: min longitudinal distance to main vertex
133 Double_t fMaxDCAToVertexXY; // cut value: max distance to main vertex in transverse plane
134 Double_t fMaxDCAToVertexZ; // cut value: max longitudinal distance to main vertex
135 Bool_t fDCAToVertex2D; // flag: cut on ellipse in xy - z plane
136 Bool_t fAbsDCAToVertex; // flag: cut on absolute values or in units of sigma
137 Double_t fNSigmaToVertexMin; // cut value: min distance to main vertex in units of sigma
107a3100 138 Double_t fNSigmaToVertexMax; // cut value: max distance to main vertex in units of sigma
89d7d478 139 Double_t fSigmaDCAxy; // cut value: impact parameter resolution in xy plane
140 Double_t fSigmaDCAz; // cut value: impact parameter resolution in z direction
c66800ea 141 Double_t fDCA[6]; // impact parameters
8edd0c2c 142 Bool_t fRequireSigmaToVertex; // require calculable distance to main vertex
143 Char_t fAODType; // type of AOD track (undef, primary, secondary, orphan)
144 // applicable at AOD level only !
563113d0 145
146 TH2F* fhDcaXYvsDcaZ[2]; // Histogram: dca xy vs. z
c66800ea 147 Bool_t fAcceptKinkDaughters; // accepting kink daughters
563113d0 148
045e6d86 149 TH1F* fhCutStatistics; // Histogram: statistics of what cuts the tracks did not survive
150 TH2F* fhCutCorrelation; // Histogram: 2d statistics plot
563113d0 151
152 TH1F* fhQA[kNHist][kNStepQA]; // QA Histograms
045e6d86 153 TBits *fBitmap ; // stores single selection decisions
563113d0 154
155 // QA histogram setters
db6722a5 156 Int_t fhNBinsNSigma; // number of bins+1: dca in units of sigma
157 Int_t fhNBinsRequireSigma; // number of bins+1: require successful calcuation
158 Int_t fhNBinsAcceptKink; // number of bins+1: acceptkink daughters
159 Int_t fhNBinsDcaXY; // number of bins+1: dca in transverse plane
160 Int_t fhNBinsDcaZ; // number of bins+1: dca along beam axis
161 Int_t fhNBinsDcaXYnorm; // number of bins+1: normalised dca in transverse plane
162 Int_t fhNBinsDcaZnorm; // number of bins+1: normalised dca along beam axis
89d7d478 163 Int_t fhNBinsSigmaDcaXY; // number of bins+1: impact parameter resolution in transverse plane
164 Int_t fhNBinsSigmaDcaZ; // number of bins+1: impact parameter resolution along beam axis
045e6d86 165
166 Double_t *fhBinLimNSigma; //[fhNBinsNSigma] bin limits: dca in units of sigma
167 Double_t *fhBinLimRequireSigma;//[fhNBinsRequireSigma] bin limits: require successful calcuation
168 Double_t *fhBinLimAcceptKink;//[fhNBinsAcceptKink] bin limits: acceptkink daughters
169 Double_t *fhBinLimDcaXY;//[fhNBinsDcaXY] bin limits: dca in transverse plane
170 Double_t *fhBinLimDcaZ; //[fhNBinsDcaZ] bin limits: dca along beam axis
171 Double_t *fhBinLimDcaXYnorm; //[fhNBinsDcaXYnorm] bin limits: normalised dca in transverse plane
172 Double_t *fhBinLimDcaZnorm;//[fhNBinsDcaZnorm] bin limits: normalised dca along beam axis
89d7d478 173 Double_t *fhBinLimSigmaDcaXY; //[fhNBinsSigmaDcaXY] bin limits: impact parameter in transverse plane
174 Double_t *fhBinLimSigmaDcaZ; //[fhNBinsSigmaDcaZ] bin limits: impact parameter along beam axis
045e6d86 175
8edd0c2c 176 ClassDef(AliCFTrackIsPrimaryCuts,3);
563113d0 177};
178
179#endif