1 #ifndef AliAnalysisTaskPhiCorrelations_H
2 #define AliAnalysisTaskPhiCorrelations_H
4 /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
5 * See cxx source for full Copyright notice */
7 ////////////////////////////////////////////////////////////////////////
9 // Analysis class for Underlying Event studies w.r.t. leading track
11 // Look for correlations on the tranverse regions w.r.t
12 // the leading track in the event
14 // This class needs input AODs.
15 // The output is a list of analysis-specific containers.
17 // The AOD can be either connected to the InputEventHandler
18 // for a chain of AOD files
20 // to the OutputEventHandler
21 // for a chain of ESD files,
22 // in this case the class should be in the train after the jet-finder
25 // Jan Fiete Grosse-Oetringhaus
27 ////////////////////////////////////////////////////////////////////////
29 #include "AliAnalysisTask.h"
30 #include "AliUEHist.h"
32 #include "AliVParticle.h"
34 #include "THn.h" // in cxx file causes .../THn.h:257: error: conflicting declaration ‘typedef class THnT<float> THnF’
37 class AliAnalyseLeadingTrackUE;
38 class AliInputEventHandler;
40 class AliMCEventHandler;
41 class AliUEHistograms;
45 class AliEventPoolManager;
48 class AliAnalysisUtils;
51 class AliGenEventHeader;
54 class AliAnalysisTaskPhiCorrelations : public AliAnalysisTask
57 AliAnalysisTaskPhiCorrelations(const char* name="AliAnalysisTaskPhiCorrelations");
58 virtual ~AliAnalysisTaskPhiCorrelations();
61 // Implementation of interace methods
62 virtual void ConnectInputData(Option_t *);
63 virtual void CreateOutputObjects();
64 virtual void Exec(Option_t *option);
67 // general configuration
68 virtual void SetDebugLevel( Int_t level ) { fDebug = level; }
69 virtual void SetMode(Int_t mode) { fMode = mode; }
70 virtual void SetReduceMemoryFootprint(Bool_t flag) { fReduceMemoryFootprint = flag; }
71 virtual void SetEventMixing(Bool_t flag) { fFillMixed = flag; }
72 virtual void SetMixingTracks(Int_t tracks) { fMixingTracks = tracks; }
73 virtual void SetTwoTrackEfficiencyStudy(Bool_t flag) { fTwoTrackEfficiencyStudy = flag; }
74 virtual void SetTwoTrackEfficiencyCut(Float_t value = 0.02, Float_t min = 0.8) { fTwoTrackEfficiencyCut = value; fTwoTrackCutMinRadius = min; }
75 virtual void SetUseVtxAxis(Int_t flag) { fUseVtxAxis = flag; }
76 virtual void SetCourseCentralityBinning(Bool_t flag) { fCourseCentralityBinning = flag; }
77 virtual void SetSkipTrigger(Bool_t flag) { fSkipTrigger = flag; }
78 virtual void SetInjectedSignals(Bool_t flag) { fInjectedSignals = flag; }
81 void SetEfficiencyCorrectionTriggers(THnF* hist) { fEfficiencyCorrectionTriggers = hist; }
82 void SetEfficiencyCorrectionAssociated(THnF* hist) { fEfficiencyCorrectionAssociated = hist; }
85 void SetTracksInVertex( Int_t val ){ fnTracksVertex = val; }
86 void SetZVertex( Double_t val ) { fZVertex = val; }
89 void SetTrackEtaCut( Double_t val ) { fTrackEtaCut = val; }
90 void SetTrackEtaCutMin( Double_t val ) { fTrackEtaCutMin = val; }
91 void SetOnlyOneEtaSide(Int_t flag) { fOnlyOneEtaSide = flag; }
92 void SetPtMin(Double_t val) { fPtMin = val; }
93 void SetFilterBit( UInt_t val ) { fFilterBit = val; }
94 void SetDCAXYCut(TFormula* value) { fDCAXYCut = value; }
95 void SetTrackStatus(UInt_t status) { fTrackStatus = status; }
96 void SetCheckMotherPDG(Bool_t checkpdg) { fCheckMotherPDG = checkpdg; }
98 void SetEventSelectionBit( UInt_t val ) { fSelectBit = val; }
99 void SetUseChargeHadrons( Bool_t val ) { fUseChargeHadrons = val; }
100 void SetSelectParticleSpecies( Int_t trigger, Int_t associated ) { fParticleSpeciesTrigger = trigger; fParticleSpeciesAssociated = associated; }
101 void SetSelectCharge(Int_t selectCharge) { fSelectCharge = selectCharge; }
102 void SetSelectTriggerCharge(Int_t selectCharge) { fTriggerSelectCharge = selectCharge; }
103 void SetSelectAssociatedCharge(Int_t selectCharge) { fAssociatedSelectCharge = selectCharge; }
104 void SetTriggerRestrictEta(Float_t eta) { fTriggerRestrictEta = eta; }
105 void SetEtaOrdering(Bool_t flag) { fEtaOrdering = flag; }
106 void SetPairCuts(Bool_t conversions, Bool_t resonances) { fCutConversions = conversions; fCutResonances = resonances; }
107 void SetRejectResonanceDaughters(Int_t value) { fRejectResonanceDaughters = value; }
108 void SetCentralityMethod(const char* method) { fCentralityMethod = method; }
109 void SetFillpT(Bool_t flag) { fFillpT = flag; }
110 void SetStepsFillSkip(Bool_t step0, Bool_t step6) { fFillOnlyStep0 = step0; fSkipStep6 = step6; }
111 void SetRejectCentralityOutliers(Bool_t flag = kTRUE) { fRejectCentralityOutliers = flag; }
112 void SetRejectZeroTrackEvents(Bool_t flag) { fRejectZeroTrackEvents = flag; }
113 void SetRemoveWeakDecays(Bool_t flag = kTRUE) { fRemoveWeakDecays = flag; }
114 void SetRemoveDuplicates(Bool_t flag = kTRUE) { fRemoveDuplicates = flag; }
115 void SetSkipFastCluster(Bool_t flag = kTRUE) { fSkipFastCluster = flag; }
116 void SetWeightPerEvent(Bool_t flag = kTRUE) { fWeightPerEvent = flag; }
117 void SetCustomBinning(const char* binningStr) { fCustomBinning = binningStr; }
118 void SetPtOrder(Bool_t flag) { fPtOrder = flag; }
119 void SetTriggersFromDetector(Int_t flag) { fTriggersFromDetector = flag; }
120 void SetMCUseUncheckedCentrality(Bool_t flag) { fMCUseUncheckedCentrality = flag; }
122 AliHelperPID* GetHelperPID() { return fHelperPID; }
123 void SetHelperPID(AliHelperPID* pid){ fHelperPID = pid; }
125 AliAnalysisUtils* GetAnalysisUtils() { return fAnalysisUtils; }
126 void SetAnalysisUtils(AliAnalysisUtils* utils){ fAnalysisUtils = utils; }
128 TMap* GetMap() { return fMap; }
129 void SetMap(TMap* map){ fMap = map; }
132 AliAnalysisTaskPhiCorrelations(const AliAnalysisTaskPhiCorrelations &det);
133 AliAnalysisTaskPhiCorrelations& operator=(const AliAnalysisTaskPhiCorrelations &det);
134 void AddSettingsTree(); // add list of settings to output list
136 void AnalyseCorrectionMode(); // main algorithm to get correction maps
137 void AnalyseDataMode(); // main algorithm to get raw distributions
138 void Initialize(); // initialize some common pointer
139 TObjArray* CloneAndReduceTrackList(TObjArray* tracks);
140 void RemoveDuplicates(TObjArray* tracks);
141 void CleanUp(TObjArray* tracks, TObject* mcObj, Int_t maxLabel);
142 void SelectCharge(TObjArray* tracks);
143 AliGenEventHeader* GetFirstHeader();
145 // General configuration
146 Int_t fDebug; // Debug flag
147 Int_t fMode; // fMode = 0: data-like analysis
148 // fMode = 1: corrections analysis
149 Bool_t fReduceMemoryFootprint; // reduce memory consumption by writing less debug histograms
150 Bool_t fFillMixed; // enable event mixing (default: ON)
151 Int_t fMixingTracks; // size of track buffer for event mixing
152 Bool_t fTwoTrackEfficiencyStudy; // two-track efficiency study on
153 Float_t fTwoTrackEfficiencyCut; // enable two-track efficiency cut
154 Float_t fTwoTrackCutMinRadius; // minimum radius for two-track efficiency cut
155 Int_t fUseVtxAxis; // use z vtx as axis (needs 7-10 times more memory!)
156 Bool_t fCourseCentralityBinning; // less centrality bins
157 Bool_t fSkipTrigger; // skip trigger selection
158 Bool_t fInjectedSignals; // check header to skip injected signals in MC
160 AliHelperPID* fHelperPID; // points to class for PID
161 AliAnalysisUtils* fAnalysisUtils; // points to class with common analysis utilities
162 TMap* fMap; // points to TMap class containing scaling factors for VZERO A signal
164 // Pointers to external UE classes
165 AliAnalyseLeadingTrackUE* fAnalyseUE; //! points to class containing common analysis algorithms
166 AliUEHistograms* fHistos; //! points to class to handle histograms/containers
167 AliUEHistograms* fHistosMixed; //! points to class to handle mixed histograms/containers
169 THnF* fEfficiencyCorrectionTriggers; // if non-0 this efficiency correction is applied on the fly to the filling for trigger particles. The factor is multiplicative, i.e. should contain 1/efficiency. Axes: eta, pT, centrality, z-vtx
170 THnF* fEfficiencyCorrectionAssociated; // if non-0 this efficiency correction is applied on the fly to the filling for associated particles. The factor is multiplicative, i.e. should contain 1/efficiency. Axes: eta, pT, centrality, z-vtx
172 // Handlers and events
173 AliAODEvent* fAOD; //! AOD Event
174 AliESDEvent* fESD; //! ESD Event
175 TClonesArray* fArrayMC; //! Array of MC particles
176 AliInputEventHandler* fInputHandler; //! Generic InputEventHandler
177 AliMCEvent* fMcEvent; //! MC event
178 AliMCEventHandler* fMcHandler; //! MCEventHandler
179 AliEventPoolManager* fPoolMgr; //! event pool manager
181 // Histogram settings
182 TList* fListOfHistos; // Output list of containers
185 Int_t fnTracksVertex; // QA tracks pointing to principal vertex
186 Double_t fZVertex; // Position of Vertex in Z direction
187 TString fCentralityMethod; // Method to determine centrality
190 Double_t fTrackEtaCut; // Maximum Eta cut on particles
191 Double_t fTrackEtaCutMin; // Minimum Eta cut on particles
192 Int_t fOnlyOneEtaSide; // decides that only trigger particle from one eta side are considered (0 = all; -1 = negative, 1 = positive)
193 Double_t fPtMin; // Min pT to start correlations
194 TFormula* fDCAXYCut; // additional pt dependent cut on DCA XY (only for AOD)
195 UInt_t fFilterBit; // Select tracks from an specific track cut
196 UInt_t fTrackStatus; // if non-0, the bits set in this variable are required for each track
197 UInt_t fSelectBit; // Select events according to AliAnalysisTaskJetServices bit maps
198 Bool_t fUseChargeHadrons; // Only use charge hadrons
199 Int_t fParticleSpeciesTrigger; // Select which particle to use for the trigger [ -1 (all, default) 0 (pions) 1 (kaons) 2 (protons) 3 (others) particles ]
200 Int_t fParticleSpeciesAssociated; // Select which particle to use for the associated [ -1 (all, default) 0 (pions) 1 (kaons) 2 (protons) 3 (others) particles ]
201 Bool_t fCheckMotherPDG; // Check the PDG code of mother for secondaries
203 Int_t fSelectCharge; // (un)like sign selection when building correlations: 0: no selection; 1: unlike sign; 2: like sign
204 Int_t fTriggerSelectCharge; // select charge of trigger particle: 1: positive; -1 negative
205 Int_t fAssociatedSelectCharge; // select charge of associated particle: 1: positive; -1 negative
206 Float_t fTriggerRestrictEta; // restrict eta range for trigger particle (default: -1 [off])
207 Bool_t fEtaOrdering; // eta ordering, see AliUEHistograms.h for documentation
208 Bool_t fCutConversions; // cut on conversions (inv mass)
209 Bool_t fCutResonances; // cut on resonances (inv mass)
210 Int_t fRejectResonanceDaughters; // reject all daughters of all resonance candidates (1: test method (cut at m_inv=0.9); 2: k0; 3: lambda)
211 Bool_t fFillOnlyStep0; // fill only step 0
212 Bool_t fSkipStep6; // skip step 6 when filling
213 Bool_t fRejectCentralityOutliers; // enable rejection of outliers in centrality vs no track correlation
214 Bool_t fRejectZeroTrackEvents; // reject events which have no tracks (using the eta, pT cuts defined)
215 Bool_t fRemoveWeakDecays; // remove secondaries from weak decays from tracks and particles
216 Bool_t fRemoveDuplicates; // remove particles with the same label (double reconstruction)
217 Bool_t fSkipFastCluster; // skip kFastOnly flagged events (only for data)
218 Bool_t fWeightPerEvent; // weight with the number of trigger particles per event
219 TString fCustomBinning; // supersedes default binning if set, see AliUEHist::GetBinning or AliUEHistograms::AliUEHistograms for syntax and examples
220 Bool_t fPtOrder; // apply pT,a < pt,t condition; default: kTRUE
221 Int_t fTriggersFromDetector; // 0 = tracks (default); 1 = VZERO_A; 2 = VZERO_C
222 Bool_t fMCUseUncheckedCentrality; // use unchecked centrality (only applies to MC); default: kFALSE
224 Bool_t fFillpT; // fill sum pT instead of number density
226 ClassDef(AliAnalysisTaskPhiCorrelations, 39); // Analysis task for delta phi correlations
229 class AliDPhiBasicParticle : public AliVParticle
232 AliDPhiBasicParticle(Float_t eta, Float_t phi, Float_t pt, Short_t charge)
233 : fEta(eta), fPhi(phi), fpT(pt), fCharge(charge)
236 ~AliDPhiBasicParticle() {}
239 virtual Double_t Px() const { AliFatal("Not implemented"); return 0; }
240 virtual Double_t Py() const { AliFatal("Not implemented"); return 0; }
241 virtual Double_t Pz() const { AliFatal("Not implemented"); return 0; }
242 virtual Double_t Pt() const { return fpT; }
243 virtual Double_t P() const { AliFatal("Not implemented"); return 0; }
244 virtual Bool_t PxPyPz(Double_t[3]) const { AliFatal("Not implemented"); return 0; }
246 virtual Double_t Xv() const { AliFatal("Not implemented"); return 0; }
247 virtual Double_t Yv() const { AliFatal("Not implemented"); return 0; }
248 virtual Double_t Zv() const { AliFatal("Not implemented"); return 0; }
249 virtual Bool_t XvYvZv(Double_t[3]) const { AliFatal("Not implemented"); return 0; }
251 virtual Double_t OneOverPt() const { AliFatal("Not implemented"); return 0; }
252 virtual Double_t Phi() const { return fPhi; }
253 virtual Double_t Theta() const { AliFatal("Not implemented"); return 0; }
256 virtual Double_t E() const { AliFatal("Not implemented"); return 0; }
257 virtual Double_t M() const { AliFatal("Not implemented"); return 0; }
259 virtual Double_t Eta() const { return fEta; }
260 virtual Double_t Y() const { AliFatal("Not implemented"); return 0; }
262 virtual Short_t Charge() const { return fCharge; }
263 virtual Int_t GetLabel() const { AliFatal("Not implemented"); return 0; }
265 virtual Int_t PdgCode() const { AliFatal("Not implemented"); return 0; }
266 virtual const Double_t *PID() const { AliFatal("Not implemented"); return 0; }
268 virtual Bool_t IsEqual(const TObject* obj) const { return (obj->GetUniqueID() == GetUniqueID()); }
274 Short_t fCharge; // charge
276 ClassDef( AliDPhiBasicParticle, 1); // class which contains only quantities requires for this analysis to reduce memory consumption for event mixing