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; }
79 void SetRandomizeReactionPlane(Bool_t flag) { fRandomizeReactionPlane = flag; }
82 void SetEfficiencyCorrectionTriggers(THnF* hist) { fEfficiencyCorrectionTriggers = hist; }
83 void SetEfficiencyCorrectionAssociated(THnF* hist) { fEfficiencyCorrectionAssociated = hist; }
84 void SetCentralityWeights(TH1* hist) { fCentralityWeights = hist; }
87 void SetTracksInVertex( Int_t val ){ fnTracksVertex = val; }
88 void SetZVertex( Double_t val ) { fZVertex = val; }
91 void SetTrackEtaCut( Double_t val ) { fTrackEtaCut = val; }
92 void SetTrackEtaCutMin( Double_t val ) { fTrackEtaCutMin = val; }
93 void SetOnlyOneEtaSide(Int_t flag) { fOnlyOneEtaSide = flag; }
94 void SetPtMin(Double_t val) { fPtMin = val; }
95 void SetFilterBit( UInt_t val ) { fFilterBit = val; }
96 void SetDCAXYCut(TFormula* value) { fDCAXYCut = value; }
97 void SetSharedClusterCut(Float_t value) { fSharedClusterCut = value; }
98 void SetTrackStatus(UInt_t status) { fTrackStatus = status; }
99 void SetCheckMotherPDG(Bool_t checkpdg) { fCheckMotherPDG = checkpdg; }
101 void SetEventSelectionBit( UInt_t val ) { fSelectBit = val; }
102 void SetUseChargeHadrons( Bool_t val ) { fUseChargeHadrons = val; }
103 void SetSelectParticleSpecies( Int_t trigger, Int_t associated ) { fParticleSpeciesTrigger = trigger; fParticleSpeciesAssociated = associated; }
104 void SetSelectCharge(Int_t selectCharge) { fSelectCharge = selectCharge; }
105 void SetSelectTriggerCharge(Int_t selectCharge) { fTriggerSelectCharge = selectCharge; }
106 void SetSelectAssociatedCharge(Int_t selectCharge) { fAssociatedSelectCharge = selectCharge; }
107 void SetTriggerRestrictEta(Float_t eta) { fTriggerRestrictEta = eta; }
108 void SetEtaOrdering(Bool_t flag) { fEtaOrdering = flag; }
109 void SetPairCuts(Bool_t conversions, Bool_t resonances) { fCutConversions = conversions; fCutResonances = resonances; }
110 void SetRejectResonanceDaughters(Int_t value) { fRejectResonanceDaughters = value; }
111 void SetCentralityMethod(const char* method) { fCentralityMethod = method; }
112 void SetFillpT(Bool_t flag) { fFillpT = flag; }
113 void SetStepsFillSkip(Bool_t step0, Bool_t step6) { fFillOnlyStep0 = step0; fSkipStep6 = step6; }
114 void SetRejectCentralityOutliers(Bool_t flag = kTRUE) { fRejectCentralityOutliers = flag; }
115 void SetRejectZeroTrackEvents(Bool_t flag) { fRejectZeroTrackEvents = flag; }
116 void SetRemoveWeakDecays(Bool_t flag = kTRUE) { fRemoveWeakDecays = flag; }
117 void SetRemoveDuplicates(Bool_t flag = kTRUE) { fRemoveDuplicates = flag; }
118 void SetSkipFastCluster(Bool_t flag = kTRUE) { fSkipFastCluster = flag; }
119 void SetWeightPerEvent(Bool_t flag = kTRUE) { fWeightPerEvent = flag; }
120 void SetCustomBinning(const char* binningStr) { fCustomBinning = binningStr; }
121 void SetPtOrder(Bool_t flag) { fPtOrder = flag; }
122 void SetTriggersFromDetector(Int_t flag) { fTriggersFromDetector = flag; }
123 void SetMCUseUncheckedCentrality(Bool_t flag) { fMCUseUncheckedCentrality = flag; }
125 AliHelperPID* GetHelperPID() { return fHelperPID; }
126 void SetHelperPID(AliHelperPID* pid){ fHelperPID = pid; }
128 AliAnalysisUtils* GetAnalysisUtils() { return fAnalysisUtils; }
129 void SetAnalysisUtils(AliAnalysisUtils* utils){ fAnalysisUtils = utils; }
131 TMap* GetMap() { return fMap; }
132 void SetMap(TMap* map){ fMap = map; }
135 AliAnalysisTaskPhiCorrelations(const AliAnalysisTaskPhiCorrelations &det);
136 AliAnalysisTaskPhiCorrelations& operator=(const AliAnalysisTaskPhiCorrelations &det);
137 void AddSettingsTree(); // add list of settings to output list
139 void AnalyseCorrectionMode(); // main algorithm to get correction maps
140 void AnalyseDataMode(); // main algorithm to get raw distributions
141 void Initialize(); // initialize some common pointer
142 TObjArray* CloneAndReduceTrackList(TObjArray* tracks);
143 void RemoveDuplicates(TObjArray* tracks);
144 void CleanUp(TObjArray* tracks, TObject* mcObj, Int_t maxLabel);
145 void SelectCharge(TObjArray* tracks);
146 AliGenEventHeader* GetFirstHeader();
147 Bool_t AcceptEventCentralityWeight(Double_t centrality);
148 void ShiftTracks(TObjArray* tracks, Double_t angle);
150 // General configuration
151 Int_t fDebug; // Debug flag
152 Int_t fMode; // fMode = 0: data-like analysis
153 // fMode = 1: corrections analysis
154 Bool_t fReduceMemoryFootprint; // reduce memory consumption by writing less debug histograms
155 Bool_t fFillMixed; // enable event mixing (default: ON)
156 Int_t fMixingTracks; // size of track buffer for event mixing
157 Bool_t fTwoTrackEfficiencyStudy; // two-track efficiency study on
158 Float_t fTwoTrackEfficiencyCut; // enable two-track efficiency cut
159 Float_t fTwoTrackCutMinRadius; // minimum radius for two-track efficiency cut
160 Int_t fUseVtxAxis; // use z vtx as axis (needs 7-10 times more memory!)
161 Bool_t fCourseCentralityBinning; // less centrality bins
162 Bool_t fSkipTrigger; // skip trigger selection
163 Bool_t fInjectedSignals; // check header to skip injected signals in MC
164 Bool_t fRandomizeReactionPlane; // change the orientation of the RP by a random value by shifting all tracks
166 AliHelperPID* fHelperPID; // points to class for PID
167 AliAnalysisUtils* fAnalysisUtils; // points to class with common analysis utilities
168 TMap* fMap; // points to TMap class containing scaling factors for VZERO A signal
170 // Pointers to external UE classes
171 AliAnalyseLeadingTrackUE* fAnalyseUE; //! points to class containing common analysis algorithms
172 AliUEHistograms* fHistos; //! points to class to handle histograms/containers
173 AliUEHistograms* fHistosMixed; //! points to class to handle mixed histograms/containers
175 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
176 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
177 TH1* fCentralityWeights; // for centrality flattening
179 // Handlers and events
180 AliAODEvent* fAOD; //! AOD Event
181 AliESDEvent* fESD; //! ESD Event
182 TClonesArray* fArrayMC; //! Array of MC particles
183 AliInputEventHandler* fInputHandler; //! Generic InputEventHandler
184 AliMCEvent* fMcEvent; //! MC event
185 AliInputEventHandler* fMcHandler; //! MCEventHandler
186 AliEventPoolManager* fPoolMgr; //! event pool manager
188 // Histogram settings
189 TList* fListOfHistos; // Output list of containers
192 Int_t fnTracksVertex; // QA tracks pointing to principal vertex
193 Double_t fZVertex; // Position of Vertex in Z direction
194 TString fCentralityMethod; // Method to determine centrality
197 Double_t fTrackEtaCut; // Maximum Eta cut on particles
198 Double_t fTrackEtaCutMin; // Minimum Eta cut on particles
199 Int_t fOnlyOneEtaSide; // decides that only trigger particle from one eta side are considered (0 = all; -1 = negative, 1 = positive)
200 Double_t fPtMin; // Min pT to start correlations
201 TFormula* fDCAXYCut; // additional pt dependent cut on DCA XY (only for AOD)
202 Double_t fSharedClusterCut; // cut on shared clusters (only for AOD)
203 UInt_t fFilterBit; // Select tracks from an specific track cut
204 UInt_t fTrackStatus; // if non-0, the bits set in this variable are required for each track
205 UInt_t fSelectBit; // Select events according to AliAnalysisTaskJetServices bit maps
206 Bool_t fUseChargeHadrons; // Only use charge hadrons
207 Int_t fParticleSpeciesTrigger; // Select which particle to use for the trigger [ -1 (all, default) 0 (pions) 1 (kaons) 2 (protons) 3 (others) particles ]
208 Int_t fParticleSpeciesAssociated; // Select which particle to use for the associated [ -1 (all, default) 0 (pions) 1 (kaons) 2 (protons) 3 (others) particles ]
209 Bool_t fCheckMotherPDG; // Check the PDG code of mother for secondaries
211 Int_t fSelectCharge; // (un)like sign selection when building correlations: 0: no selection; 1: unlike sign; 2: like sign
212 Int_t fTriggerSelectCharge; // select charge of trigger particle: 1: positive; -1 negative
213 Int_t fAssociatedSelectCharge; // select charge of associated particle: 1: positive; -1 negative
214 Float_t fTriggerRestrictEta; // restrict eta range for trigger particle (default: -1 [off])
215 Bool_t fEtaOrdering; // eta ordering, see AliUEHistograms.h for documentation
216 Bool_t fCutConversions; // cut on conversions (inv mass)
217 Bool_t fCutResonances; // cut on resonances (inv mass)
218 Int_t fRejectResonanceDaughters; // reject all daughters of all resonance candidates (1: test method (cut at m_inv=0.9); 2: k0; 3: lambda)
219 Bool_t fFillOnlyStep0; // fill only step 0
220 Bool_t fSkipStep6; // skip step 6 when filling
221 Bool_t fRejectCentralityOutliers; // enable rejection of outliers in centrality vs no track correlation
222 Bool_t fRejectZeroTrackEvents; // reject events which have no tracks (using the eta, pT cuts defined)
223 Bool_t fRemoveWeakDecays; // remove secondaries from weak decays from tracks and particles
224 Bool_t fRemoveDuplicates; // remove particles with the same label (double reconstruction)
225 Bool_t fSkipFastCluster; // skip kFastOnly flagged events (only for data)
226 Bool_t fWeightPerEvent; // weight with the number of trigger particles per event
227 TString fCustomBinning; // supersedes default binning if set, see AliUEHist::GetBinning or AliUEHistograms::AliUEHistograms for syntax and examples
228 Bool_t fPtOrder; // apply pT,a < pt,t condition; default: kTRUE
229 Int_t fTriggersFromDetector; // 0 = tracks (default); 1 = VZERO_A; 2 = VZERO_C
230 Bool_t fMCUseUncheckedCentrality; // use unchecked centrality (only applies to MC); default: kFALSE
232 Bool_t fFillpT; // fill sum pT instead of number density
234 ClassDef(AliAnalysisTaskPhiCorrelations, 42); // Analysis task for delta phi correlations
237 class AliDPhiBasicParticle : public AliVParticle
240 AliDPhiBasicParticle(Float_t eta, Float_t phi, Float_t pt, Short_t charge)
241 : fEta(eta), fPhi(phi), fpT(pt), fCharge(charge)
244 ~AliDPhiBasicParticle() {}
247 virtual Double_t Px() const { AliFatal("Not implemented"); return 0; }
248 virtual Double_t Py() const { AliFatal("Not implemented"); return 0; }
249 virtual Double_t Pz() const { AliFatal("Not implemented"); return 0; }
250 virtual Double_t Pt() const { return fpT; }
251 virtual Double_t P() const { AliFatal("Not implemented"); return 0; }
252 virtual Bool_t PxPyPz(Double_t[3]) const { AliFatal("Not implemented"); return 0; }
254 virtual Double_t Xv() const { AliFatal("Not implemented"); return 0; }
255 virtual Double_t Yv() const { AliFatal("Not implemented"); return 0; }
256 virtual Double_t Zv() const { AliFatal("Not implemented"); return 0; }
257 virtual Bool_t XvYvZv(Double_t[3]) const { AliFatal("Not implemented"); return 0; }
259 virtual Double_t OneOverPt() const { AliFatal("Not implemented"); return 0; }
260 virtual Double_t Phi() const { return fPhi; }
261 virtual Double_t Theta() const { AliFatal("Not implemented"); return 0; }
264 virtual Double_t E() const { AliFatal("Not implemented"); return 0; }
265 virtual Double_t M() const { AliFatal("Not implemented"); return 0; }
267 virtual Double_t Eta() const { return fEta; }
268 virtual Double_t Y() const { AliFatal("Not implemented"); return 0; }
270 virtual Short_t Charge() const { return fCharge; }
271 virtual Int_t GetLabel() const { AliFatal("Not implemented"); return 0; }
273 virtual Int_t PdgCode() const { AliFatal("Not implemented"); return 0; }
274 virtual const Double_t *PID() const { AliFatal("Not implemented"); return 0; }
276 virtual Bool_t IsEqual(const TObject* obj) const { return (obj->GetUniqueID() == GetUniqueID()); }
278 virtual void SetPhi(Double_t phi) { fPhi = phi; }
284 Short_t fCharge; // charge
286 ClassDef( AliDPhiBasicParticle, 1); // class which contains only quantities requires for this analysis to reduce memory consumption for event mixing