1 /* $Id: AliPhysicsSelection.h 35782 2009-10-22 11:54:31Z jgrosseo $ */
3 #ifndef ALIPHYSICSSELECTION_H
4 #define ALIPHYSICSSELECTION_H
6 /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
7 * See cxx source for full Copyright notice */
9 //-------------------------------------------------------------------------
10 // Implementation of Class AliPhysicsSelection
12 // This class selects collision candidates from data runs, applying selection cuts on triggers
13 // and background rejection based on the content of the ESD
15 // Origin: Jan Fiete Grosse-Oetringhaus, CERN
16 // Michele Floris, CERN
17 //-------------------------------------------------------------------------
19 #include <AliAnalysisCuts.h>
21 #include "TObjString.h"
29 class AliTriggerAnalysis;
30 class AliAnalysisTaskSE;
32 class AliPhysicsSelection : public AliAnalysisCuts
37 enum {kStatTriggerClass=1,kStatHWTrig,kStatV0ABG,kStatV0CBG,kStatMB1,kStatMB1Prime,kStatFMD,kStatFO1,kStatFO2,kStatV0A,kStatV0C,kStatSSD1,kStatFO1AndV0,kStatV0,kStatAny2Hits,kStatOffline,kStatBG,kStatAccepted};
40 enum {kStatRowBG=5,kStatRowAcc,kStatRowBGFrac,kStatRowAccFrac,kStatRowErrGoodFrac,kStatRowGoodFrac,kStatRowErrGood,kStatRowGood};
42 enum {kStatRowBG=5,kStatRowAcc,kStatRowGood};
45 enum {kStatIdxAll=0,kStatIdxBin0=1};
48 typedef Bool_t (*Bin0Callback_t)(const AliESDEvent *);
50 AliPhysicsSelection();
51 virtual ~AliPhysicsSelection();
53 // AliAnalysisCuts interface
54 virtual UInt_t GetSelectionMask(const TObject* obj) { return IsCollisionCandidate((const AliESDEvent*) obj); }
55 virtual Bool_t IsSelected(TList*) { return kFALSE; }
56 virtual Bool_t IsSelected(TObject*) {return kFALSE;}
58 UInt_t IsCollisionCandidate(const AliESDEvent* aEsd);
59 Bool_t Initialize(Int_t runNumber);
61 void SetAnalyzeMC(Bool_t flag = kTRUE) { fMC = flag; }
62 void SetSkipTriggerClassSelection(Bool_t flag = kTRUE) { fSkipTriggerClassSelection = flag; }
63 void SetSkipV0(Bool_t flag=kTRUE) { fSkipV0 = flag;}
65 void AddBackgroundIdentification(AliAnalysisCuts* background) { fBackgroundIdentification = background; }
67 virtual void Print(Option_t* option = "") const;
68 virtual Long64_t Merge(TCollection* list);
69 void SaveHistograms(const char* folder = 0) const;
71 const TList* GetCollisionTriggerClasses() const { return &fCollTrigClasses; }
72 const TList* GetBGTriggerClasses() const { return &fBGTrigClasses; }
73 void AddCollisionTriggerClass(const char* className){ fCollTrigClasses.Add(new TObjString(className)); fUsingCustomClasses = kTRUE; }
74 void AddBGTriggerClass(const char* className) { fBGTrigClasses.Add(new TObjString(className)); fUsingCustomClasses = kTRUE; }
76 AliTriggerAnalysis* GetTriggerAnalysis(Int_t i = 0) { return (fTriggerAnalysis.GetEntries() > 0) ? (AliTriggerAnalysis*) fTriggerAnalysis.At(i) : 0; }
78 const TH2F* GetStatisticsHistogram(Int_t idx=kStatIdxAll) const { return fHistStatistics[idx]; }
79 const TH2F* GetBunchCrossingHistogram() const { return fHistBunchCrossing; }
81 void SetBIFactors(Int_t run);
83 void SetUseBXNumbers(Bool_t flag = kTRUE) {fUseBXNumbers = flag;}
84 void SetComputeBG (Bool_t flag = kTRUE) {fComputeBG = flag; if(flag) fUseBXNumbers = flag;}
85 void SetUseMuonTriggers(Bool_t flag = kTRUE) {fUseMuonTriggers = flag;}
86 void SetBin0Callback( const char * cb) {fBin0CallBack = cb;}
87 void SetBin0CallbackViaPointer( Bin0Callback_t cb) {fBin0CallBackPointer = cb;}// WARNING: THIS SHOULD NOT BE USED, WILL BE REMOVED SOON
91 UInt_t CheckTriggerClass(const AliESDEvent* aEsd, const char* trigger) const;
92 Int_t GetTriggerScheme(UInt_t runNumber) const;
93 const char * GetBXIDs(UInt_t runNumber, const char * trigger ) ;
94 const char * GetFillingScheme(UInt_t runNumber) ;
95 TH2F * BookHistStatistics(const char * tag) ;
97 Int_t fCurrentRun; // run number for which the object is initialized
98 Bool_t fMC; // flag if MC is analyzed
99 TList fCollTrigClasses; // trigger class identifying collision candidates
100 TList fBGTrigClasses; // trigger classes identifying background events
102 TList fTriggerAnalysis; // list of offline trigger objects (several are needed to keep the control histograms separate per trigger class)
104 AliAnalysisCuts* fBackgroundIdentification; // class that performs additional background identification
106 TH2F* fHistStatistics[2]; // how many events are cut away why {all,bin 0}
107 TH2F* fHistBunchCrossing; // histograms of accepted bunch crossing numbers
108 TH1F* fHistTriggerPattern; // Pattern of the individual detectors in the MB1 trigger. Can reveal inconsistencies/inefficiencies in the trigger
110 Bool_t fSkipTriggerClassSelection; // flag that determines if the trigger classs selection is skipped
111 Bool_t fUsingCustomClasses; // flag that is set if costum trigger classes are defined
112 Bool_t fSkipV0; // ignore information from v0
114 Float_t fBIFactorA; // ratio of interacting over non interacting bunch intensities for beam 1
115 Float_t fBIFactorC; // ratio of interacting over non interacting bunch intensities for beam 2
118 Bool_t fComputeBG; // Switch on computation of background and filling of relevant stat table entries. If you enable this you can only process one run at a time (the relative bunch intensity used to compute this chages from run to run)
119 Bool_t fUseBXNumbers; // Explicitely select "good" bunch crossing numbers (exclude pilot, afterpulses and fakes). If you anable this you can only process runs within the same filling scheme.
120 Bool_t fUseMuonTriggers; // if true, also use the muon triggers
121 TString fFillingScheme; // stores the filling scheme of the current run.
123 TString fBin0CallBack; // callback used to determine if an event is in the bin0 (name of the task where the callback is implemented);
124 Bin0Callback_t fBin0CallBackPointer; //! don't stream this. TO BE REMOVED SOON
126 ClassDef(AliPhysicsSelection, 9)
129 AliPhysicsSelection(const AliPhysicsSelection&);
130 AliPhysicsSelection& operator=(const AliPhysicsSelection&);