3 #ifndef ALIPWG0HELPER_H
4 #define ALIPWG0HELPER_H
7 #include <AliTriggerAnalysis.h>
9 // static helper functions
18 class AliGenEventHeader;
21 class AliOfflineTrigger;
23 class AliPWG0Helper : public TObject
26 enum AnalysisMode { kInvalid = -1, kSPD = 0x1, kTPC = 0x2, kTPCITS = 0x4, kFieldOn = 0x8 };
27 // in case we want to use bitmaps...
28 enum MCProcessType { kInvalidProcess = -1, kND = 0x1, kDD = 0x2, kSD = 0x4 };
30 static const AliESDVertex* GetVertex(AliESDEvent* aEsd, AnalysisMode analysisMethod, Bool_t debug = kFALSE, Bool_t bRedoTPC = kFALSE);
31 static Bool_t TestVertex(const AliESDVertex* vertex, AnalysisMode analysisMode, Bool_t debug = kFALSE);
33 static Bool_t IsPrimaryCharged(TParticle* aParticle, Int_t aTotalPrimaries, Bool_t adebug = kFALSE);
35 static AliPWG0Helper::MCProcessType GetEventProcessType(AliHeader* aHeader, Bool_t adebug = kFALSE);
36 static AliPWG0Helper::MCProcessType GetPythiaEventProcessType(AliGenEventHeader* aHeader, Bool_t adebug = kFALSE);
37 static AliPWG0Helper::MCProcessType GetDPMjetEventProcessType(AliGenEventHeader* aHeader, Bool_t adebug = kFALSE);
38 static Int_t GetLastProcessType() { return fgLastProcessType; }
40 static TParticle* FindPrimaryMother(AliStack* stack, Int_t label);
41 static Int_t FindPrimaryMotherLabel(AliStack* stack, Int_t label);
43 static void CreateProjections(TH3* hist, Bool_t save = kFALSE);
44 static void CreateDividedProjections(TH3* hist, TH3* hist2, const char* axis = 0, Bool_t putErrors = kFALSE, Bool_t save = kFALSE);
45 static const char* GetAxisTitle(TH3* hist, const char axis);
47 static void NormalizeToBinWidth(TH1* hist);
48 static void NormalizeToBinWidth(TH2* hist);
50 static void PrintConf(AnalysisMode analysisMode, AliTriggerAnalysis::Trigger trigger);
53 static Int_t fgLastProcessType; // stores the raw value of the last process type extracnted
55 ClassDef(AliPWG0Helper, 0)
58 AliPWG0Helper(const AliPWG0Helper&);
59 AliPWG0Helper& operator=(const AliPWG0Helper&);