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 //-------------------------------------------------------------------------
18 #include <AliAnalysisCuts.h>
20 #include "TObjString.h"
25 class AliTriggerAnalysis;
26 class AliAnalysisTaskSE;
28 class AliPhysicsSelection : public AliAnalysisCuts
31 enum {kStatTriggerClass=1,kStatHWTrig,kStatV0ABG,kStatV0CBG,kStatMB1,kStatMB1Prime,kStatFMD,kStatFO1,kStatFO2,kStatV0A,kStatV0C,kStatSSD1,kStatFO1AndV0,kStatV0,kStatAny2Hits,kStatOffline,kStatBG,kStatAccepted};
34 enum {kStatRowBG=5,kStatRowAcc,kStatRowBGFrac,kStatRowAccFrac,kStatRowErrGood,kStatRowFracGood,kStatRowGood};
36 enum {kStatRowBG=5,kStatRowAcc,kStatRowGood};
39 enum {kStatIdxAll=0,kStatIdxBin0=1};
43 typedef Bool_t (*Bin0Callback_t)(const AliESDEvent *);
45 AliPhysicsSelection();
46 virtual ~AliPhysicsSelection();
48 // AliAnalysisCuts interface
49 virtual Bool_t IsSelected(TObject* obj) { return IsCollisionCandidate((const AliESDEvent*) obj); }
50 virtual Bool_t IsSelected(TList*) { return kFALSE; }
52 Bool_t IsCollisionCandidate(const AliESDEvent* aEsd);
53 Bool_t Initialize(Int_t runNumber);
55 void SetAnalyzeMC(Bool_t flag = kTRUE) { fMC = flag; }
56 void SetSkipTriggerClassSelection(Bool_t flag = kTRUE) { fSkipTriggerClassSelection = flag; }
57 void SetSkipV0(Bool_t flag=kTRUE) { fSkipV0 = flag;}
59 void AddBackgroundIdentification(AliAnalysisCuts* background) { fBackgroundIdentification = background; }
61 virtual void Print(Option_t* option = "") const;
62 virtual Long64_t Merge(TCollection* list);
63 void SaveHistograms(const char* folder = 0) const;
65 const TList* GetCollisionTriggerClasses() const { return &fCollTrigClasses; }
66 const TList* GetBGTriggerClasses() const { return &fBGTrigClasses; }
67 void AddCollisionTriggerClass(const char* className){ fCollTrigClasses.Add(new TObjString(className)); fUsingCustomClasses = kTRUE; }
68 void AddBGTriggerClass(const char* className) { fBGTrigClasses.Add(new TObjString(className)); fUsingCustomClasses = kTRUE; }
70 AliTriggerAnalysis* GetTriggerAnalysis() { return (fTriggerAnalysis.GetEntries() > 0) ? (AliTriggerAnalysis*) fTriggerAnalysis.At(0) : 0; }
72 const TH2F* GetStatisticsHistogram(Int_t idx=kStatIdxAll) const { return fHistStatistics[idx]; }
73 const TH2F* GetBunchCrossingHistogram() const { return fHistBunchCrossing; }
75 void SetBIFactors(Int_t run);
77 void SetUseBXNumbers(Bool_t flag = kTRUE) {fUseBXNumbers = flag;}
78 void SetComputeBG (Bool_t flag = kTRUE) {fComputeBG = flag; if(flag) fUseBXNumbers = flag;}
79 void SetBin0Callback( const char * cb) {fBin0CallBack = cb;}
80 void SetBin0CallbackViaPointer( Bin0Callback_t cb) {fBin0CallBackPointer = cb;}// WARNING: THIS SHOULD NOT BE USED, WILL BE REMOVED SOON
83 Bool_t CheckTriggerClass(const AliESDEvent* aEsd, const char* trigger) const;
84 Int_t GetTriggerScheme(UInt_t runNumber) const;
85 const char * GetBXIDs(UInt_t runNumber, const char * trigger ) ;
86 const char * GetFillingScheme(UInt_t runNumber) ;
87 Int_t GetRatioBBBE(Int_t runNumber);
88 TH2F * BookHistStatistics(const char * tag) ;
91 Int_t fCurrentRun; // run number for which the object is initialized
92 Bool_t fMC; // flag if MC is analyzed
93 TList fCollTrigClasses; // trigger class identifying collision candidates
94 TList fBGTrigClasses; // trigger classes identifying background events
96 TList fTriggerAnalysis; // list of offline trigger objects (several are needed to keep the control histograms separate per trigger class)
98 AliAnalysisCuts* fBackgroundIdentification; // class that performs additional background identification
100 TH2F* fHistStatistics[2]; // how many events are cut away why {all,bin 0}
101 TH2F* fHistBunchCrossing; // histograms of accepted bunch crossing numbers
103 Bool_t fSkipTriggerClassSelection; // flag that determines if the trigger classs selection is skipped
104 Bool_t fUsingCustomClasses; // flag that is set if costum trigger classes are defined
105 Bool_t fSkipV0; // ignore information from v0
107 Float_t fBIFactorA; // ratio of interacting over non interacting bunch intensities for beam 1
108 Float_t fBIFactorC; // ratio of interacting over non interacting bunch intensities for beam 2
110 Int_t fRatioBEEE; // ratio between the number of BX in the Beam-Empty and the Empty-Empty. Depends on the filling and on the trigger scheme
112 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)
113 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.
114 TString fFillingScheme; // stores the filling scheme of the current run.
116 TString fBin0CallBack; // callback used to determine if an event is in the bin0 (name of the task where the callback is implemented);
117 Bin0Callback_t fBin0CallBackPointer; //! don't stream this. TO BE REMOVED SOON
119 ClassDef(AliPhysicsSelection, 6)
122 AliPhysicsSelection(const AliPhysicsSelection&);
123 AliPhysicsSelection& operator=(const AliPhysicsSelection&);