1 #ifndef ALIRSNMINIVALUE_H
2 #define ALIRSNMINIVALUE_H
4 /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
5 * See cxx source for full Copyright notice */
7 ////////////////////////////////////////////////////////////////////////////////
9 // Values which depend on 4-momentum of the pair.
11 ////////////////////////////////////////////////////////////////////////////////
14 class AliRsnMiniEvent;
16 class AliRsnMiniValue : public TNamed {
20 kVz, // event Z position of primary vertex
21 kMult, // event multiplicity or centrality (depends on task settings)
22 kTracklets, // event tracklets
23 kPlaneAngle, // event reaction plane angle
24 kLeadingPt, // event leading particle momentum
25 kEventCuts, // -- limit of event cuts ----------------------------------------------------
26 kPt, // pair transverse momentum
27 kPz, // pair longitudinal momentum
28 kInvMass, // pair invariant mass (with reconstructed momenta)
29 kInvMassRes, // pair invariant mass resolution
30 kInvMassDiff, // pair invariant mass difference (MC - reconstructed)
31 kEta, // pair pseudo-rapidity
32 kMt, // pair transverse mass (need a reference mass)
33 kY, // pair rapidity (need a reference mass)
34 kPtRatio, // ratio |pt1 - pt2|/(pt1 + pt2) of daughter transverse momenta
35 kDipAngle, // inverse cosine of the angle between daughter vector momenta
36 kCosThetaStar, // polarization angle
37 kAngleLeading, // angle to leading particle
38 kFirstDaughterPt, //pt of the first daughter of the pair
39 kSecondDaughterPt, //pt of the second daughter of the pair
40 kFirstDaughterP, //p of the first daughter of the pair
41 kSecondDaughterP, //p of the second daughter of the pair
42 kDCAproduct, // product of the daughter's dca to PV (same in AliRsnValuePair)
43 kFirstDaughterDCA, //DCA to PV of the first daughter of the pair
44 kSecondDaughterDCA, //DCA to PV of the second daughter of the pair
45 kNSisters, // number of daughters (only for MC)
46 kTypes // -- general limit ----------------------------------------------------------
49 AliRsnMiniValue(EType type = kTypes, Bool_t useMC = kFALSE);
50 AliRsnMiniValue(const AliRsnMiniValue ©);
51 AliRsnMiniValue &operator=(const AliRsnMiniValue ©);
52 virtual ~AliRsnMiniValue() { }
54 void SetType(EType type) {fType = type;}
55 EType GetType() const {return fType;}
56 const char *GetTypeName() const {return TypeName(fType);}
57 Bool_t IsEventValue() const {return (fType < kEventCuts);}
59 Float_t Eval(AliRsnMiniPair *pair, AliRsnMiniEvent *event = 0x0);
61 static const char *TypeName(EType type);
62 static const char *ValueName(EType type, Bool_t useMC);
66 EType fType; // type from enumeration
67 Bool_t fUseMCInfo; // switch to use rec/sim momentum
69 ClassDef(AliRsnMiniValue, 1) // AliRsnMiniValue class
72 inline const char *AliRsnMiniValue::ValueName(EType type, Bool_t useMC)
75 // Define a criterion to name these object.
76 // They are not managed by the user, since each object is a singleton
80 return Form("MC_%s", TypeName(type));
82 return TypeName(type);