3 #ifndef ALIPWG0HELPER_H
4 #define ALIPWG0HELPER_H
8 // static helper functions
18 class AliGenEventHeader;
22 class AliPWG0Helper : public TObject
25 enum Trigger { kMB1 = 0, kMB2, kSPDFASTOR }; // definition from ALICE-INT-2005-025
26 enum AnalysisMode { kInvalid = -1, kSPD = 0, kTPC, kTPCITS };
27 // in case we want to use bitmaps...
28 enum MCProcessType { kInvalidProcess = -1, kND = 0x1, kDD = 0x2, kSD = 0x4 };
30 static Bool_t IsEventTriggered(const AliESD* aEsd, Trigger trigger = kMB2);
31 static Bool_t IsEventTriggered(ULong64_t triggerMask, Trigger trigger = kMB2);
32 static const AliESDVertex* GetVertex(AliESDEvent* aEsd, AnalysisMode analysisMethod, Bool_t debug = kFALSE,Bool_t bRedoTPC = false);
33 static Bool_t TestVertex(const AliESDVertex* vertex, AnalysisMode analysisMode, Bool_t debug = kFALSE);
35 static Bool_t IsPrimaryCharged(TParticle* aParticle, Int_t aTotalPrimaries, Bool_t adebug = kFALSE);
37 static AliPWG0Helper::MCProcessType GetEventProcessType(AliHeader* aHeader, Bool_t adebug = kFALSE);
38 static AliPWG0Helper::MCProcessType GetPythiaEventProcessType(AliGenEventHeader* aHeader, Bool_t adebug = kFALSE);
39 static AliPWG0Helper::MCProcessType GetDPMjetEventProcessType(AliGenEventHeader* aHeader, Bool_t adebug = kFALSE);
40 static Int_t GetLastProcessType() { return fgLastProcessType; }
42 static TParticle* FindPrimaryMother(AliStack* stack, Int_t label);
43 static Int_t FindPrimaryMotherLabel(AliStack* stack, Int_t label);
45 static void CreateProjections(TH3* hist, Bool_t save = kFALSE);
46 static void CreateDividedProjections(TH3* hist, TH3* hist2, const char* axis = 0, Bool_t putErrors = kFALSE, Bool_t save = kFALSE);
47 static const char* GetAxisTitle(TH3* hist, const char axis);
49 static void NormalizeToBinWidth(TH1* hist);
50 static void NormalizeToBinWidth(TH2* hist);
52 static void PrintConf(AnalysisMode analysisMode, Trigger trigger);
55 static Int_t fgLastProcessType; // stores the raw value of the last process type extracnted
57 ClassDef(AliPWG0Helper, 0)
60 AliPWG0Helper(const AliPWG0Helper&);
61 AliPWG0Helper& operator=(const AliPWG0Helper&);