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>
24 #include <AliAnalysisFilter.h>
25 #include <AliKFParticle.h>
27 #include "AliDielectronHistos.h"
28 #include "AliDielectronHF.h"
29 #include "AliDielectronCutQA.h"
35 class AliDielectronCF;
36 class AliDielectronDebugTree;
37 class AliDielectronTrackRotator;
38 class AliDielectronPair;
39 class AliDielectronSignalMC;
40 class AliDielectronMixingHandler;
42 //________________________________________________________________
43 class AliDielectron : public TNamed {
45 friend class AliDielectronMixingHandler; //mixing as friend class
48 enum EPairType { kEv1PP=0, kEv1PM, kEv1MM,
49 kEv1PEv2P, kEv1MEv2P, kEv2PP,
50 kEv1PEv2M, kEv1MEv2M, kEv2PM,
52 enum ELegType { kEv1P, kEv1M, kEv2P, kEv2M };
55 AliDielectron(const char* name, const char* title);
56 virtual ~AliDielectron();
60 void Process(/*AliVEvent *ev1, */TObjArray *arr);
61 Bool_t Process(AliVEvent *ev1, AliVEvent *ev2=0);
63 const AliAnalysisFilter& GetEventFilter() const { return fEventFilter; }
64 const AliAnalysisFilter& GetTrackFilter() const { return fTrackFilter; }
65 const AliAnalysisFilter& GetPairFilter() const { return fPairFilter; }
67 AliAnalysisFilter& GetEventFilter() { return fEventFilter; }
68 AliAnalysisFilter& GetTrackFilter() { return fTrackFilter; }
69 AliAnalysisFilter& GetPairFilter() { return fPairFilter; }
70 AliAnalysisFilter& GetPairPreFilter() { return fPairPreFilter; }
71 AliAnalysisFilter& GetPairPreFilterLegs() { return fPairPreFilterLegs; }
72 AliAnalysisFilter& GetEventPlanePreFilter(){ return fEventPlanePreFilter; }
73 AliAnalysisFilter& GetEventPlanePOIPreFilter(){ return fEventPlanePOIPreFilter; }
75 void SetMotherPdg( Int_t pdgMother ) { fPdgMother=pdgMother; }
76 void SetLegPdg(Int_t pdgLeg1, Int_t pdgLeg2) { fPdgLeg1=pdgLeg1; fPdgLeg2=pdgLeg2; }
77 Int_t GetMotherPdg() const { return fPdgMother; }
78 Int_t GetLeg1Pdg() const { return fPdgLeg1; }
79 Int_t GetLeg2Pdg() const { return fPdgLeg2; }
81 void SetCutQA(Bool_t qa=kTRUE) { fCutQA=qa; }
82 void SetNoPairing(Bool_t noPairing=kTRUE) { fNoPairing=noPairing; }
83 void SetProcessLS(Bool_t doLS=kTRUE) { fProcessLS=doLS; }
84 void SetUseKF(Bool_t useKF=kTRUE) { fUseKF=useKF; }
85 const TObjArray* GetTrackArray(Int_t i) const {return (i>=0&&i<4)?&fTracks[i]:0;}
86 const TObjArray* GetPairArray(Int_t i) const {return (i>=0&&i<11)?
87 static_cast<TObjArray*>(fPairCandidates->UncheckedAt(i)):0;}
89 TObjArray** GetPairArraysPointer() { return &fPairCandidates; }
90 void SetPairArraysPointer( TObjArray *arr) { fPairCandidates=arr; }
91 void SetHistogramArray(AliDielectronHF * const histoarray) { fHistoArray=histoarray; }
92 const TObjArray * GetHistogramArray() const { return fHistoArray?fHistoArray->GetHistArray():0x0; }
93 const TObjArray * GetQAHistArray() const { return fQAmonitor?fQAmonitor->GetQAHistArray():0x0; }
95 void SetHistogramManager(AliDielectronHistos * const histos) { fHistos=histos; }
96 AliDielectronHistos* GetHistoManager() const { return fHistos; }
97 const THashList * GetHistogramList() const { return fHistos?fHistos->GetHistogramList():0x0; }
99 Bool_t HasCandidates() const { return GetPairArray(1)?GetPairArray(1)->GetEntriesFast()>0:0; }
100 Bool_t HasCandidatesLikeSign() const {
101 return (GetPairArray(0)&&GetPairArray(2)) ? (GetPairArray(0)->GetEntriesFast()>0 || GetPairArray(2)->GetEntriesFast()>0) : 0;
104 Bool_t HasCandidatesTR() const {return GetPairArray(10)?GetPairArray(10)->GetEntriesFast()>0:0;}
105 void SetCFManagerPair(AliDielectronCF * const cf) { fCfManagerPair=cf; }
106 AliDielectronCF* GetCFManagerPair() const { return fCfManagerPair; }
108 void SetPreFilterEventPlane(Bool_t setValue=kTRUE){fPreFilterEventPlane=setValue;};
109 void SetLikeSignSubEvents(Bool_t setValue=kTRUE){fLikeSignSubEvents=setValue;};
110 void SetPreFilterUnlikeOnly(Bool_t setValue=kTRUE){fPreFilterUnlikeOnly=setValue;};
111 void SetPreFilterAllSigns(Bool_t setValue=kTRUE){fPreFilterAllSigns=setValue;};
113 void SetTrackRotator(AliDielectronTrackRotator * const rot) { fTrackRotator=rot; }
114 AliDielectronTrackRotator* GetTrackRotator() const { return fTrackRotator; }
116 void SetMixingHandler(AliDielectronMixingHandler *mix) { fMixing=mix; }
117 AliDielectronMixingHandler* GetMixingHandler() const { return fMixing; }
119 void SetHasMC(Bool_t hasMC) { fHasMC = hasMC; }
120 Bool_t GetHasMC() const { return fHasMC; }
122 void SetStoreRotatedPairs(Bool_t storeTR) {fStoreRotatedPairs = storeTR;}
123 void SetDontClearArrays(Bool_t dontClearArrays=kTRUE) { fDontClearArrays=dontClearArrays; }
124 Bool_t DontClearArrays() const { return fDontClearArrays; }
126 void AddSignalMC(AliDielectronSignalMC* signal);
128 void SetDebugTree(AliDielectronDebugTree * const tree) { fDebugTree=tree; }
130 const TObjArray* GetMCSignals() const { return fSignalsMC; }
131 static const char* TrackClassName(Int_t i) { return (i>=0&&i<4)?fgkTrackClassNames[i]:""; }
132 static const char* PairClassName(Int_t i) { return (i>=0&&i<11)?fgkPairClassNames[i]:""; }
134 void SetEstimatorFilename(const Char_t* filename) {fEstimatorFilename = filename;}
135 void SetTRDcorrectionFilename(const Char_t* filename) {fTRDpidCorrectionFilename = filename;}
136 void SetVZEROCalibrationFilename(const Char_t* filename) {fVZEROCalibrationFilename = filename;}
137 void SetVZERORecenteringFilename(const Char_t* filename) {fVZERORecenteringFilename = filename;}
138 void SetZDCRecenteringFilename(const Char_t* filename) {fZDCRecenteringFilename = filename;}
139 void InitLegEffMap(TString filename) { fLegEffMap=InitEffMap(filename) ;}
140 void InitPairEffMap(TString filename) { fPairEffMap=InitEffMap(filename) ;}
142 void SetCentroidCorrFunction(TF1 *fun, UInt_t varx, UInt_t vary=0, UInt_t varz=0);
143 void SetWidthCorrFunction(TF1 *fun, UInt_t varx, UInt_t vary=0, UInt_t varz=0);
144 void SetCentroidCorrFunction(TH1 *fun, UInt_t varx, UInt_t vary=0, UInt_t varz=0);
145 void SetWidthCorrFunction(TH1 *fun, UInt_t varx, UInt_t vary=0, UInt_t varz=0);
147 void SaveDebugTree();
148 Bool_t DoEventProcess() const { return fEventProcess; }
149 void SetEventProcess(Bool_t setValue=kTRUE) { fEventProcess=setValue; }
150 void FillHistogramsFromPairArray(Bool_t pairInfoOnly=kFALSE);
154 Bool_t fCutQA; // monitor cuts
155 AliDielectronCutQA *fQAmonitor; // monitoring of cuts
156 TH1 *fPostPIDCntrdCorr; // post pid correction object for centroids
157 TH1 *fPostPIDWdthCorr; // post pid correction object for widths
158 TObject *fLegEffMap; // single electron efficiency map
159 TObject *fPairEffMap; // pair efficiency map
160 AliAnalysisFilter fEventFilter; // Event cuts
161 AliAnalysisFilter fTrackFilter; // leg cuts
162 AliAnalysisFilter fPairPreFilter; // pair prefilter cuts
163 AliAnalysisFilter fPairPreFilterLegs; // Leg filter after the pair prefilter cuts
164 AliAnalysisFilter fPairFilter; // pair cuts
165 AliAnalysisFilter fEventPlanePreFilter; // event plane prefilter cuts
166 AliAnalysisFilter fEventPlanePOIPreFilter; // PoI cuts in the event plane prefilter
168 Int_t fPdgMother; // pdg code of mother tracks
169 Int_t fPdgLeg1; // pdg code leg1
170 Int_t fPdgLeg2; // pdg code leg2
172 TObjArray* fSignalsMC; // array of AliDielectronSignalMC
174 Bool_t fNoPairing; // if to skip pairing, can be used for track QA only
175 Bool_t fProcessLS; // do the like-sign pairing (default kTRUE)
176 Bool_t fUseKF; // if to skip pairing, can be used for track QA only
178 AliDielectronHF *fHistoArray; // Histogram framework
179 AliDielectronHistos *fHistos; // Histogram manager
180 // Streaming and merging should be handled
181 // by the analysis framework
182 TBits *fUsedVars; // used variables
184 TObjArray fTracks[4]; //! Selected track candidates
185 // 0: Event1, positive particles
186 // 1: Event1, negative particles
187 // 2: Event2, positive particles
188 // 3: Event2, negative particles
190 TObjArray *fPairCandidates; //! Pair candidate arrays
191 //TODO: better way to store it? TClonesArray?
193 AliDielectronCF *fCfManagerPair;//Correction Framework Manager for the Pair
194 AliDielectronTrackRotator *fTrackRotator; //Track rotator
195 AliDielectronDebugTree *fDebugTree; // Debug tree output
196 AliDielectronMixingHandler *fMixing; // handler for event mixing
198 Bool_t fPreFilterEventPlane; //Filter for the Eventplane determination in TPC
199 Bool_t fLikeSignSubEvents; //Option for dividing into subevents, sub1 ++ sub2 --
200 Bool_t fPreFilterUnlikeOnly; //Apply PreFilter either in +- or to ++/--/+- individually
201 Bool_t fPreFilterAllSigns; //Apply PreFilter find in ++/--/+- and remove from all
202 Bool_t fHasMC; //If we run with MC, at the moment only needed in AOD
203 Bool_t fStoreRotatedPairs; //It the rotated pairs should be stored in the pair array
204 Bool_t fDontClearArrays; //Don't clear the arrays at the end of the Process function, needed for external use of pair and tracks
205 Bool_t fEventProcess; //Process event (or pair array)
207 void FillTrackArrays(AliVEvent * const ev, Int_t eventNr=0);
208 void EventPlanePreFilter(Int_t arr1, Int_t arr2, TObjArray arrTracks1, TObjArray arrTracks2, const AliVEvent *ev);
209 void PairPreFilter(Int_t arr1, Int_t arr2, TObjArray &arrTracks1, TObjArray &arrTracks2);
210 void FillPairArrays(Int_t arr1, Int_t arr2);
211 void FillPairArrayTR();
213 Int_t GetPairIndex(Int_t arr1, Int_t arr2) const {return arr1>=arr2?arr1*(arr1+1)/2+arr2:arr2*(arr2+1)/2+arr1;}
215 void InitPairCandidateArrays();
218 TObjArray* PairArray(Int_t i);
219 TObject* InitEffMap(TString filename);
221 static const char* fgkTrackClassNames[4]; //Names for track arrays
222 static const char* fgkPairClassNames[11]; //Names for pair arrays
224 TString fEstimatorFilename; // name for the pp multiplicity estimators filename
225 TString fTRDpidCorrectionFilename; // name for the file containing the single particle TRD pid corrections
226 TString fVZEROCalibrationFilename; // file containing VZERO channel-by-channel calibration
227 TString fVZERORecenteringFilename; // file containing VZERO Q-vector recentering averages
228 TString fZDCRecenteringFilename; // file containing ZDCQ-vector recentering averages
230 void ProcessMC(AliVEvent *ev1);
232 void FillHistograms(const AliVEvent *ev, Bool_t pairInfoOnly=kFALSE);
233 void FillMCHistograms(const AliVEvent *ev);
234 void FillMCHistograms(Int_t label1, Int_t label2, Int_t nSignal);
235 void FillHistogramsMC(const AliMCEvent *ev, AliVEvent *ev1);
236 void FillHistogramsPair(AliDielectronPair *pair,Bool_t fromPreFilter=kFALSE);
237 void FillHistogramsTracks(TObjArray **tracks);
239 void FillDebugTree();
241 AliDielectron(const AliDielectron &c);
242 AliDielectron &operator=(const AliDielectron &c);
244 ClassDef(AliDielectron,12);
247 inline void AliDielectron::InitPairCandidateArrays()
250 // initialise all pair candidate arrays
252 fPairCandidates->SetOwner();
253 for (Int_t i=0;i<11;++i){
254 TObjArray *arr=new TObjArray;
255 fPairCandidates->AddAt(arr,i);
260 inline TObjArray* AliDielectron::PairArray(Int_t i)
263 // for internal use only: unchecked return of track array for fast access
265 return static_cast<TObjArray*>(fPairCandidates->UncheckedAt(i));
268 inline void AliDielectron::ClearArrays()
273 for (Int_t i=0;i<4;++i){
276 for (Int_t i=0;i<11;++i){
277 if (PairArray(i)) PairArray(i)->Delete();