1 #ifndef ALIDIELECTRON_H
2 #define ALIDIELECTRON_H
3 /* Copyright(c) 1998-2009, ALICE Experiment at CERN, All rights reserved. *
4 * See cxx source for full Copyright notice */
6 //#####################################################
8 //# Class AliDielectron #
9 //# Main Class for e+e- analysis #
11 //# by WooJin J. Park, GSI / W.J.Park@gsi.de #
12 //# Ionut C. Arsene, GSI / I.C.Arsene@gsi.de #
13 //# Magnus Mager, CERN / Magnus.Mager@cern.ch #
14 //# Jens Wiechula, Uni HD / Jens.Wiechula@cern.ch #
16 //#####################################################
20 #include <TObjArray.h>
22 #include <AliAnalysisFilter.h>
23 #include <AliKFParticle.h>
25 #include "AliDielectronHistos.h"
26 #include "AliDielectronHF.h"
27 #include "AliDielectronCutQA.h"
33 class AliDielectronCF;
34 class AliDielectronDebugTree;
35 class AliDielectronTrackRotator;
36 class AliDielectronPair;
37 class AliDielectronSignalMC;
38 class AliDielectronMixingHandler;
40 //________________________________________________________________
41 class AliDielectron : public TNamed {
43 friend class AliDielectronMixingHandler; //mixing as friend class
46 enum EPairType { kEv1PP=0, kEv1PM, kEv1MM,
47 kEv1PEv2P, kEv1MEv2P, kEv2PP,
48 kEv1PEv2M, kEv1MEv2M, kEv2PM,
50 enum ELegType { kEv1P, kEv1M, kEv2P, kEv2M };
53 AliDielectron(const char* name, const char* title);
54 virtual ~AliDielectron();
58 void Process(AliVEvent *ev1, AliVEvent *ev2=0);
60 const AliAnalysisFilter& GetEventFilter() const { return fEventFilter; }
61 const AliAnalysisFilter& GetTrackFilter() const { return fTrackFilter; }
62 const AliAnalysisFilter& GetPairFilter() const { return fPairFilter; }
64 AliAnalysisFilter& GetEventFilter() { return fEventFilter; }
65 AliAnalysisFilter& GetTrackFilter() { return fTrackFilter; }
66 AliAnalysisFilter& GetPairFilter() { return fPairFilter; }
67 AliAnalysisFilter& GetPairPreFilter() { return fPairPreFilter; }
68 AliAnalysisFilter& GetPairPreFilterLegs() { return fPairPreFilterLegs; }
69 AliAnalysisFilter& GetEventPlanePreFilter(){ return fEventPlanePreFilter; }
70 AliAnalysisFilter& GetEventPlanePOIPreFilter(){ return fEventPlanePOIPreFilter; }
72 void SetMotherPdg( Int_t pdgMother ) { fPdgMother=pdgMother; }
73 void SetLegPdg(Int_t pdgLeg1, Int_t pdgLeg2) { fPdgLeg1=pdgLeg1; fPdgLeg2=pdgLeg2; }
74 Int_t GetMotherPdg() const { return fPdgMother; }
75 Int_t GetLeg1Pdg() const { return fPdgLeg1; }
76 Int_t GetLeg2Pdg() const { return fPdgLeg2; }
78 void SetCutQA(Bool_t qa=kTRUE) { fCutQA=qa; }
79 void SetNoPairing(Bool_t noPairing=kTRUE) { fNoPairing=noPairing; }
80 void SetUseKF(Bool_t useKF=kTRUE) { fUseKF=useKF; }
81 const TObjArray* GetTrackArray(Int_t i) const {return (i>=0&&i<4)?&fTracks[i]:0;}
82 const TObjArray* GetPairArray(Int_t i) const {return (i>=0&&i<11)?
83 static_cast<TObjArray*>(fPairCandidates->UncheckedAt(i)):0;}
85 TObjArray** GetPairArraysPointer() { return &fPairCandidates; }
86 void SetHistogramArray(AliDielectronHF * const histoarray) { fHistoArray=histoarray; }
87 const TObjArray * GetHistogramArray() const { return fHistoArray?fHistoArray->GetHistArray():0x0; }
88 const TObjArray * GetQAHistArray() const { return fQAmonitor?fQAmonitor->GetQAHistArray():0x0; }
90 void SetHistogramManager(AliDielectronHistos * const histos) { fHistos=histos; }
91 AliDielectronHistos* GetHistoManager() const { return fHistos; }
92 const THashList * GetHistogramList() const { return fHistos?fHistos->GetHistogramList():0x0; }
94 Bool_t HasCandidates() const { return GetPairArray(1)?GetPairArray(1)->GetEntriesFast()>0:0; }
95 Bool_t HasCandidatesLikeSign() const {
96 return (GetPairArray(0)&&GetPairArray(2)) ? (GetPairArray(0)->GetEntriesFast()>0 || GetPairArray(2)->GetEntriesFast()>0) : 0;
99 Bool_t HasCandidatesTR() const {return GetPairArray(10)?GetPairArray(10)->GetEntriesFast()>0:0;}
100 void SetCFManagerPair(AliDielectronCF * const cf) { fCfManagerPair=cf; }
101 AliDielectronCF* GetCFManagerPair() const { return fCfManagerPair; }
103 void SetPreFilterEventPlane(Bool_t setValue=kTRUE){fPreFilterEventPlane=setValue;};
104 void SetLikeSignSubEvents(Bool_t setValue=kTRUE){fLikeSignSubEvents=setValue;};
105 void SetPreFilterUnlikeOnly(Bool_t setValue=kTRUE){fPreFilterUnlikeOnly=setValue;};
106 void SetPreFilterAllSigns(Bool_t setValue=kTRUE){fPreFilterAllSigns=setValue;};
108 void SetTrackRotator(AliDielectronTrackRotator * const rot) { fTrackRotator=rot; }
109 AliDielectronTrackRotator* GetTrackRotator() const { return fTrackRotator; }
111 void SetMixingHandler(AliDielectronMixingHandler *mix) { fMixing=mix; }
112 AliDielectronMixingHandler* GetMixingHandler() const { return fMixing; }
114 void SetHasMC(Bool_t hasMC) { fHasMC = hasMC; }
115 Bool_t GetHasMC() const { return fHasMC; }
117 void SetStoreRotatedPairs(Bool_t storeTR) {fStoreRotatedPairs = storeTR;}
118 void SetDontClearArrays(Bool_t dontClearArrays=kTRUE) { fDontClearArrays=dontClearArrays; }
120 void AddSignalMC(AliDielectronSignalMC* signal);
122 void SetDebugTree(AliDielectronDebugTree * const tree) { fDebugTree=tree; }
124 const TObjArray* GetMCSignals() const { return fSignalsMC; }
125 static const char* TrackClassName(Int_t i) { return (i>=0&&i<4)?fgkTrackClassNames[i]:""; }
126 static const char* PairClassName(Int_t i) { return (i>=0&&i<11)?fgkPairClassNames[i]:""; }
128 void SetEstimatorFilename(const Char_t* filename) {fEstimatorFilename = filename;}
129 void SetTRDcorrectionFilename(const Char_t* filename) {fTRDpidCorrectionFilename = filename;}
130 void SetVZEROCalibrationFilename(const Char_t* filename) {fVZEROCalibrationFilename = filename;}
131 void SetVZERORecenteringFilename(const Char_t* filename) {fVZERORecenteringFilename = filename;}
133 void SaveDebugTree();
137 Bool_t fCutQA; // monitor cuts
138 AliDielectronCutQA *fQAmonitor; // monitoring of cuts
139 AliAnalysisFilter fEventFilter; // Event cuts
140 AliAnalysisFilter fTrackFilter; // leg cuts
141 AliAnalysisFilter fPairPreFilter; // pair prefilter cuts
142 AliAnalysisFilter fPairPreFilterLegs; // Leg filter after the pair prefilter cuts
143 AliAnalysisFilter fPairFilter; // pair cuts
144 AliAnalysisFilter fEventPlanePreFilter; // event plane prefilter cuts
145 AliAnalysisFilter fEventPlanePOIPreFilter; // PoI cuts in the event plane prefilter
147 Int_t fPdgMother; // pdg code of mother tracks
148 Int_t fPdgLeg1; // pdg code leg1
149 Int_t fPdgLeg2; // pdg code leg2
151 TObjArray* fSignalsMC; // array of AliDielectronSignalMC
153 Bool_t fNoPairing; // if to skip pairing, can be used for track QA only
154 Bool_t fUseKF; // if to skip pairing, can be used for track QA only
156 AliDielectronHF *fHistoArray; // Histogram framework
157 AliDielectronHistos *fHistos; // Histogram manager
158 // Streaming and merging should be handled
159 // by the analysis framework
161 TObjArray fTracks[4]; //! Selected track candidates
162 // 0: Event1, positive particles
163 // 1: Event1, negative particles
164 // 2: Event2, positive particles
165 // 3: Event2, negative particles
167 TObjArray *fPairCandidates; //! Pair candidate arrays
168 //TODO: better way to store it? TClonesArray?
170 AliDielectronCF *fCfManagerPair;//Correction Framework Manager for the Pair
171 AliDielectronTrackRotator *fTrackRotator; //Track rotator
172 AliDielectronDebugTree *fDebugTree; // Debug tree output
173 AliDielectronMixingHandler *fMixing; // handler for event mixing
175 Bool_t fPreFilterEventPlane; //Filter for the Eventplane determination in TPC
176 Bool_t fLikeSignSubEvents; //Option for dividing into subevents, sub1 ++ sub2 --
177 Bool_t fPreFilterUnlikeOnly; //Apply PreFilter either in +- or to ++/--/+- individually
178 Bool_t fPreFilterAllSigns; //Apply PreFilter find in ++/--/+- and remove from all
179 Bool_t fHasMC; //If we run with MC, at the moment only needed in AOD
180 Bool_t fStoreRotatedPairs; //It the rotated pairs should be stored in the pair array
181 Bool_t fDontClearArrays; //Don't clear the arrays at the end of the Process function, needed for external use of pair and tracks
183 void FillTrackArrays(AliVEvent * const ev, Int_t eventNr=0);
184 void EventPlanePreFilter(Int_t arr1, Int_t arr2, TObjArray arrTracks1, TObjArray arrTracks2, const AliVEvent *ev);
185 void PairPreFilter(Int_t arr1, Int_t arr2, TObjArray &arrTracks1, TObjArray &arrTracks2);
186 void FillPairArrays(Int_t arr1, Int_t arr2);
187 void FillPairArrayTR();
189 Int_t GetPairIndex(Int_t arr1, Int_t arr2) const {return arr1>=arr2?arr1*(arr1+1)/2+arr2:arr2*(arr2+1)/2+arr1;}
191 void InitPairCandidateArrays();
194 TObjArray* PairArray(Int_t i);
196 static const char* fgkTrackClassNames[4]; //Names for track arrays
197 static const char* fgkPairClassNames[11]; //Names for pair arrays
199 TString fEstimatorFilename; // name for the pp multiplicity estimators filename
200 TString fTRDpidCorrectionFilename; // name for the file containing the single particle TRD pid corrections
201 TString fVZEROCalibrationFilename; // file containing VZERO channel-by-channel calibration
202 TString fVZERORecenteringFilename; // file containing VZERO Q-vector recentering averages
204 void ProcessMC(AliVEvent *ev1);
206 void FillHistograms(const AliVEvent *ev, Bool_t pairInfoOnly=kFALSE);
207 void FillMCHistograms(const AliVEvent *ev);
208 void FillMCHistograms(Int_t label1, Int_t label2, Int_t nSignal);
209 void FillHistogramsMC(const AliMCEvent *ev, AliVEvent *ev1);
210 void FillHistogramsPair(AliDielectronPair *pair,Bool_t fromPreFilter=kFALSE);
211 void FillHistogramsTracks(TObjArray **tracks);
213 void FillDebugTree();
215 AliDielectron(const AliDielectron &c);
216 AliDielectron &operator=(const AliDielectron &c);
218 ClassDef(AliDielectron,5);
221 inline void AliDielectron::InitPairCandidateArrays()
224 // initialise all pair candidate arrays
226 fPairCandidates->SetOwner();
227 for (Int_t i=0;i<11;++i){
228 TObjArray *arr=new TObjArray;
229 fPairCandidates->AddAt(arr,i);
234 inline TObjArray* AliDielectron::PairArray(Int_t i)
237 // for internal use only: unchecked return of track array for fast access
239 return static_cast<TObjArray*>(fPairCandidates->UncheckedAt(i));
242 inline void AliDielectron::ClearArrays()
247 for (Int_t i=0;i<4;++i){
250 for (Int_t i=0;i<11;++i){
251 if (PairArray(i)) PairArray(i)->Delete();