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>
24 class AliTriggerAnalysis;
26 class AliPhysicsSelection : public AliAnalysisCuts
29 AliPhysicsSelection();
30 virtual ~AliPhysicsSelection();
32 // AliAnalysisCuts interface
33 virtual Bool_t IsSelected(TObject* obj) { return IsCollisionCandidate((const AliESDEvent*) obj); }
34 virtual Bool_t IsSelected(TList*) { return kFALSE; }
36 Bool_t IsCollisionCandidate(const AliESDEvent* aEsd);
37 Bool_t Initialize(UInt_t runNumber);
39 void AddBackgroundIdentification(AliAnalysisCuts* background) { fBackgroundIdentification = background; }
41 virtual void Print(Option_t* option = "") const;
42 virtual Long64_t Merge(TCollection* list);
43 void SaveHistograms(const char* folder = 0) const;
45 TList* GetCollisionTriggerClasses() { return &fCollTrigClasses; }
46 TList* GetBGTriggerClasses() { return &fBGTrigClasses; }
47 AliTriggerAnalysis* GetTriggerAnalysis() { return (fTriggerAnalysis.GetEntries() > 0) ? (AliTriggerAnalysis*) fTriggerAnalysis.At(0) : 0; }
49 const TH2F* GetStatisticsHistogram() const { return fHistStatistics; }
50 const TH2F* GetBunchCrossingHistogram() const { return fHistBunchCrossing; }
53 Bool_t CheckTriggerClass(const AliESDEvent* aEsd, const char* trigger) const;
55 Int_t fCurrentRun; // run number for which the object is initialized
56 TList fCollTrigClasses; // trigger class identifying collision candidates
57 TList fBGTrigClasses; // trigger classes identifying background events
59 TList fTriggerAnalysis; // list of offline trigger objects (several are needed to keep the control histograms separate per trigger class)
61 AliAnalysisCuts* fBackgroundIdentification; // class that performs additional background identification
63 TH2F* fHistStatistics; // how many events are cut away why
64 TH2F* fHistBunchCrossing; // histograms of accepted bunch crossing numbers
66 ClassDef(AliPhysicsSelection, 1)
69 AliPhysicsSelection(const AliPhysicsSelection&);
70 AliPhysicsSelection& operator=(const AliPhysicsSelection&);