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"
31 class AliDielectronCF;
32 class AliDielectronDebugTree;
33 class AliDielectronTrackRotator;
34 class AliDielectronPair;
35 class AliDielectronSignalMC;
36 class AliDielectronMixingHandler;
38 //________________________________________________________________
39 class AliDielectron : public TNamed {
41 friend class AliDielectronMixingHandler; //mixing as friend class
44 enum EPairType { kEv1PP=0, kEv1PM, kEv1MM,
45 kEv1PEv2P, kEv1MEv2P, kEv2PP,
46 kEv1PEv2M, kEv1MEv2M, kEv2PM,
48 enum ELegType { kEv1P, kEv1M, kEv2P, kEv2M };
51 AliDielectron(const char* name, const char* title);
52 virtual ~AliDielectron();
56 void Process(AliVEvent *ev1, AliVEvent *ev2=0);
58 const AliAnalysisFilter& GetEventFilter() const { return fEventFilter; }
59 const AliAnalysisFilter& GetTrackFilter() const { return fTrackFilter; }
60 const AliAnalysisFilter& GetPairFilter() const { return fPairFilter; }
62 AliAnalysisFilter& GetEventFilter() { return fEventFilter; }
63 AliAnalysisFilter& GetTrackFilter() { return fTrackFilter; }
64 AliAnalysisFilter& GetPairFilter() { return fPairFilter; }
65 AliAnalysisFilter& GetPairPreFilter() { return fPairPreFilter; }
66 AliAnalysisFilter& GetPairPreFilterLegs() { return fPairPreFilterLegs; }
67 AliAnalysisFilter& GetEventPlanePreFilter(){ return fEventPlanePreFilter; }
68 AliAnalysisFilter& GetEventPlanePOIPreFilter(){ return fEventPlanePOIPreFilter; }
70 void SetMotherPdg( Int_t pdgMother ) { fPdgMother=pdgMother; }
71 void SetLegPdg(Int_t pdgLeg1, Int_t pdgLeg2) { fPdgLeg1=pdgLeg1; fPdgLeg2=pdgLeg2; }
72 Int_t GetMotherPdg() const { return fPdgMother; }
73 Int_t GetLeg1Pdg() const { return fPdgLeg1; }
74 Int_t GetLeg2Pdg() const { return fPdgLeg2; }
76 void SetNoPairing(Bool_t noPairing=kTRUE) { fNoPairing=noPairing; }
77 const TObjArray* GetTrackArray(Int_t i) const {return (i>=0&&i<4)?&fTracks[i]:0;}
78 const TObjArray* GetPairArray(Int_t i) const {return (i>=0&&i<11)?
79 static_cast<TObjArray*>(fPairCandidates->UncheckedAt(i)):0;}
81 TObjArray** GetPairArraysPointer() { return &fPairCandidates; }
83 void SetHistogramManager(AliDielectronHistos * const histos) { fHistos=histos; }
84 AliDielectronHistos* GetHistoManager() const { return fHistos; }
85 const THashList * GetHistogramList() const { return fHistos?fHistos->GetHistogramList():0x0; }
87 Bool_t HasCandidates() const { return GetPairArray(1)?GetPairArray(1)->GetEntriesFast()>0:0; }
88 Bool_t HasCandidatesLikeSign() const {
89 return (GetPairArray(0)&&GetPairArray(2)) ? (GetPairArray(0)->GetEntriesFast()>0 || GetPairArray(2)->GetEntriesFast()>0) : 0;
92 Bool_t HasCandidatesTR() const {return GetPairArray(10)?GetPairArray(10)->GetEntriesFast()>0:0;}
93 void SetCFManagerPair(AliDielectronCF * const cf) { fCfManagerPair=cf; }
94 AliDielectronCF* GetCFManagerPair() const { return fCfManagerPair; }
96 void SetPreFilterEventPlane(Bool_t setValue=kTRUE){fPreFilterEventPlane=setValue;};
97 void SetLikeSignSubEvents(Bool_t setValue=kTRUE){fLikeSignSubEvents=setValue;};
98 void SetPreFilterUnlikeOnly(Bool_t setValue=kTRUE){fPreFilterUnlikeOnly=setValue;};
99 void SetPreFilterAllSigns(Bool_t setValue=kTRUE){fPreFilterAllSigns=setValue;};
101 void SetTrackRotator(AliDielectronTrackRotator * const rot) { fTrackRotator=rot; }
102 AliDielectronTrackRotator* GetTrackRotator() const { return fTrackRotator; }
104 void SetMixingHandler(AliDielectronMixingHandler *mix) { fMixing=mix; }
105 AliDielectronMixingHandler* GetMixingHandler() const { return fMixing; }
107 void SetHasMC(Bool_t hasMC) { fHasMC = hasMC; }
108 Bool_t GetHasMC() const { return fHasMC; }
110 void SetStoreRotatedPairs(Bool_t storeTR) {fStoreRotatedPairs = storeTR;}
112 void AddSignalMC(AliDielectronSignalMC* signal);
114 void SetDebugTree(AliDielectronDebugTree * const tree) { fDebugTree=tree; }
116 const TObjArray* GetMCSignals() const { return fSignalsMC; }
117 static const char* TrackClassName(Int_t i) { return (i>=0&&i<4)?fgkTrackClassNames[i]:""; }
118 static const char* PairClassName(Int_t i) { return (i>=0&&i<11)?fgkPairClassNames[i]:""; }
120 void SetEstimatorFilename(const Char_t* filename) {fEstimatorFilename = filename;}
121 void SetTRDcorrectionFilename(const Char_t* filename) {fTRDpidCorrectionFilename = filename;}
122 void SetVZEROCalibrationFilename(const Char_t* filename) {fVZEROCalibrationFilename = filename;}
123 void SetVZERORecenteringFilename(const Char_t* filename) {fVZERORecenteringFilename = filename;}
125 void SaveDebugTree();
129 AliAnalysisFilter fEventFilter; // Event cuts
130 AliAnalysisFilter fTrackFilter; // leg cuts
131 AliAnalysisFilter fPairPreFilter; // pair prefilter cuts
132 AliAnalysisFilter fPairPreFilterLegs; // Leg filter after the pair prefilter cuts
133 AliAnalysisFilter fPairFilter; // pair cuts
134 AliAnalysisFilter fEventPlanePreFilter; // event plane prefilter cuts
135 AliAnalysisFilter fEventPlanePOIPreFilter; // PoI cuts in the event plane prefilter
137 Int_t fPdgMother; // pdg code of mother tracks
138 Int_t fPdgLeg1; // pdg code leg1
139 Int_t fPdgLeg2; // pdg code leg2
141 TObjArray* fSignalsMC; // array of AliDielectronSignalMC
143 Bool_t fNoPairing; // if to skip pairing, can be used for track QA only
145 AliDielectronHistos *fHistos; // Histogram manager
146 // Streaming and merging should be handled
147 // by the analysis framework
149 TObjArray fTracks[4]; //! Selected track candidates
150 // 0: Event1, positive particles
151 // 1: Event1, negative particles
152 // 2: Event2, positive particles
153 // 3: Event2, negative particles
155 TObjArray *fPairCandidates; //! Pair candidate arrays
156 //TODO: better way to store it? TClonesArray?
158 AliDielectronCF *fCfManagerPair;//Correction Framework Manager for the Pair
159 AliDielectronTrackRotator *fTrackRotator; //Track rotator
160 AliDielectronDebugTree *fDebugTree; // Debug tree output
161 AliDielectronMixingHandler *fMixing; // handler for event mixing
163 Bool_t fPreFilterEventPlane; //Filter for the Eventplane determination in TPC
164 Bool_t fLikeSignSubEvents; //Option for dividing into subevents, sub1 ++ sub2 --
165 Bool_t fPreFilterUnlikeOnly; //Apply PreFilter either in +- or to ++/--/+- individually
166 Bool_t fPreFilterAllSigns; //Apply PreFilter find in ++/--/+- and remove from all
167 Bool_t fHasMC; //If we run with MC, at the moment only needed in AOD
168 Bool_t fStoreRotatedPairs; //It the rotated pairs should be stored in the pair array
170 void FillTrackArrays(AliVEvent * const ev, Int_t eventNr=0);
171 void EventPlanePreFilter(Int_t arr1, Int_t arr2, TObjArray arrTracks1, TObjArray arrTracks2, const AliVEvent *ev, AliEventplane *cevplane);
172 void PairPreFilter(Int_t arr1, Int_t arr2, TObjArray &arrTracks1, TObjArray &arrTracks2);
173 void FillPairArrays(Int_t arr1, Int_t arr2);
174 void FillPairArrayTR();
176 Int_t GetPairIndex(Int_t arr1, Int_t arr2) const {return arr1>=arr2?arr1*(arr1+1)/2+arr2:arr2*(arr2+1)/2+arr1;}
178 void InitPairCandidateArrays();
181 TObjArray* PairArray(Int_t i);
183 static const char* fgkTrackClassNames[4]; //Names for track arrays
184 static const char* fgkPairClassNames[11]; //Names for pair arrays
186 TString fEstimatorFilename; // name for the pp multiplicity estimators filename
187 TString fTRDpidCorrectionFilename; // name for the file containing the single particle TRD pid corrections
188 TString fVZEROCalibrationFilename; // file containing VZERO channel-by-channel calibration
189 TString fVZERORecenteringFilename; // file containing VZERO Q-vector recentering averages
191 void ProcessMC(AliVEvent *ev1);
193 void FillHistograms(const AliVEvent *ev, Bool_t pairInfoOnly=kFALSE);
194 void FillHistogramsMC(const AliMCEvent *ev, AliVEvent *ev1);
195 void FillHistogramsPair(AliDielectronPair *pair,Bool_t fromPreFilter=kFALSE);
196 void FillHistogramsTracks(TObjArray **tracks);
198 void FillDebugTree();
200 AliDielectron(const AliDielectron &c);
201 AliDielectron &operator=(const AliDielectron &c);
203 ClassDef(AliDielectron,4);
206 inline void AliDielectron::InitPairCandidateArrays()
209 // initialise all pair candidate arrays
211 fPairCandidates->SetOwner();
212 for (Int_t i=0;i<11;++i){
213 TObjArray *arr=new TObjArray;
214 fPairCandidates->AddAt(arr,i);
219 inline TObjArray* AliDielectron::PairArray(Int_t i)
222 // for internal use only: unchecked return of track array for fast access
224 return static_cast<TObjArray*>(fPairCandidates->UncheckedAt(i));
227 inline void AliDielectron::ClearArrays()
232 for (Int_t i=0;i<4;++i){
235 for (Int_t i=0;i<11;++i){
236 if (PairArray(i)) PairArray(i)->Delete();