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97135b34 | 1 | #ifndef ALIAODV0_H |
2 | #define ALIAODV0_H | |
61690c9e | 3 | /* Copyright(c) 1998-2007, ALICE Experiment at CERN, All rights reserved. * |
4 | * See cxx source for full Copyright notice */ | |
5 | ||
6 | //------------------------------------------------------------------------- | |
7 | // Analysis Oriented Data (AOD) V0 vertex class | |
8 | // Authors: B.Hippolyte, IPHC, hippolyt@in2p3.fr | |
9 | // G.Van Buren, BNL, gene@bnl.gov (original STAR MuDsts) | |
10 | //------------------------------------------------------------------------- | |
11 | ||
12 | #include "AliAODRecoDecay.h" | |
13 | ||
61690c9e | 14 | class AliAODv0 : public AliAODRecoDecay { |
15 | ||
16 | public: | |
17 | ||
18 | AliAODv0(); | |
61690c9e | 19 | AliAODv0(AliAODVertex *rAODVertex, Double_t rDcaV0Daughters, Double_t rDcaV0ToPrimVertex, |
96d949da | 20 | const Double_t *rMomPos, const Double_t *rMomNeg, Double_t *rDcaDaughterToPrimVertex); |
61690c9e | 21 | virtual ~AliAODv0(); |
22 | ||
23 | AliAODv0(const AliAODv0& rAliAODv0); | |
24 | AliAODv0& operator=(const AliAODv0& rAliAODv0); | |
25 | ||
61690c9e | 26 | void Fill(AliAODVertex *rAODVertex, Double_t rDcaV0Daughters, Double_t rDcaV0ToPrimVertex, |
97135b34 | 27 | const Double_t *rMomPos, const Double_t *rMomNeg, const Double_t *rDcaDaughterToPrimVertex); |
61690c9e | 28 | void ResetV0(); |
29 | void Print(Option_t* option = "") const; | |
30 | ||
105ab4d7 | 31 | void SetOnFlyStatus(Bool_t status){fOnFlyStatus=status;} |
32 | Bool_t GetOnFlyStatus() const {return fOnFlyStatus;} | |
33 | ||
61690c9e | 34 | Double_t DecayVertexV0X() const; |
35 | Double_t DecayVertexV0Y() const; | |
36 | Double_t DecayVertexV0Z() const; | |
37 | ||
96d949da | 38 | Double_t DecayLengthV0(const Double_t *) const; |
61690c9e | 39 | |
96d949da | 40 | Double_t DcaV0Daughters() const; |
41 | Double_t DcaV0ToPrimVertex() const; | |
61690c9e | 42 | Double_t DcaPosToPrimVertex() const; |
43 | Double_t DcaNegToPrimVertex() const; | |
44 | Double_t RadiusV0() const; | |
45 | Double_t OpenAngleV0() const; | |
46 | ||
47 | Double_t MomPosX() const; | |
48 | Double_t MomPosY() const; | |
49 | Double_t MomPosZ() const; | |
50 | Double_t MomNegX() const; | |
51 | Double_t MomNegY() const; | |
52 | Double_t MomNegZ() const; | |
53 | ||
61690c9e | 54 | Double_t Chi2V0() const; |
55 | ||
56 | Double_t MomV0X() const; | |
57 | Double_t MomV0Y() const; | |
58 | Double_t MomV0Z() const; | |
59 | ||
60 | Double_t Ptot2Pos() const; | |
61 | Double_t Ptot2Neg() const; | |
62 | Double_t Ptot2V0() const; | |
63 | Double_t Pt2V0() const; | |
64 | Double_t MomPosAlongV0() const; | |
65 | Double_t MomNegAlongV0() const; | |
66 | Double_t AlphaV0() const; | |
67 | Double_t PtArmV0() const; | |
68 | Double_t EPosProton() const; | |
69 | Double_t ENegProton() const; | |
70 | Double_t EPosPion() const; | |
71 | Double_t ENegPion() const; | |
72 | Double_t ELambda() const; | |
73 | Double_t EK0Short() const; | |
74 | Double_t MassLambda() const; | |
75 | Double_t MassAntiLambda() const; | |
76 | Double_t MassK0Short() const; | |
77 | Double_t RapK0Short() const; | |
78 | Double_t RapLambda() const; | |
79 | Double_t PseudoRapV0() const; | |
80 | Double_t PseudoRapPos() const; | |
81 | Double_t PseudoRapNeg() const; | |
3c43fb2b | 82 | |
96d949da | 83 | Short_t GetPosID() const; |
84 | Short_t GetNegID() const; | |
3c43fb2b | 85 | Int_t GetLabel() const {return -1;} // Dummy |
61690c9e | 86 | |
87 | protected: | |
88 | Double32_t fDcaV0ToPrimVertex; // dca of V0 to primary vertex | |
105ab4d7 | 89 | Bool_t fOnFlyStatus; // if kTRUE, then this V0 is recontructed |
90 | // "on fly" during the tracking | |
91 | ClassDef(AliAODv0,2) | |
61690c9e | 92 | }; |
93 | ||
94 | inline Double_t AliAODv0::DecayVertexV0X() const {return this->GetSecVtxX();} | |
95 | inline Double_t AliAODv0::DecayVertexV0Y() const {return this->GetSecVtxY();} | |
96 | inline Double_t AliAODv0::DecayVertexV0Z() const {return this->GetSecVtxZ();} | |
97 | ||
96d949da | 98 | inline Double_t AliAODv0::DecayLengthV0(const Double_t *tParentVertexPosition) const { |
61690c9e | 99 | return ::sqrt(::pow(DecayVertexV0X() - tParentVertexPosition[0],2) + |
100 | ::pow(DecayVertexV0Y() - tParentVertexPosition[1],2) + | |
101 | ::pow(DecayVertexV0Z() - tParentVertexPosition[2],2)); | |
102 | } | |
103 | ||
104 | inline Double_t AliAODv0::DcaV0Daughters() const {return fDCA[0];} | |
105 | inline Double_t AliAODv0::DcaV0ToPrimVertex() const {return fDcaV0ToPrimVertex;} | |
106 | inline Double_t AliAODv0::DcaPosToPrimVertex() const {return fd0[0];} | |
107 | inline Double_t AliAODv0::DcaNegToPrimVertex() const {return fd0[1];} | |
108 | ||
109 | inline Double_t AliAODv0::RadiusV0() const { | |
110 | return RadiusSecVtx(); | |
111 | } | |
112 | ||
113 | inline Double_t AliAODv0::OpenAngleV0() const { | |
97135b34 | 114 | Double_t lScalPtot1Ptot2 = PxProng(0)*PxProng(1)+PyProng(0)*PyProng(1)+PzProng(0)*PzProng(1); |
115 | Double_t lPtot1xPtot2 = Ptot2Pos()*Ptot2Neg(); | |
116 | return ::acos(lScalPtot1Ptot2/::sqrt(lPtot1xPtot2) ); | |
61690c9e | 117 | } |
118 | ||
119 | inline Double_t AliAODv0::MomPosX() const {return fPx[0];} | |
120 | inline Double_t AliAODv0::MomPosY() const {return fPy[0];} | |
121 | inline Double_t AliAODv0::MomPosZ() const {return fPz[0];} | |
122 | inline Double_t AliAODv0::MomNegX() const {return fPx[1];} | |
123 | inline Double_t AliAODv0::MomNegY() const {return fPy[1];} | |
124 | inline Double_t AliAODv0::MomNegZ() const {return fPz[1];} | |
125 | ||
5cc73331 | 126 | inline Double_t AliAODv0::Chi2V0() const {return GetSecondaryVtx()->GetChi2perNDF();} |
61690c9e | 127 | |
128 | // Compare eventually AliAODv0::MomV0X() and AliAODRecoDecay::Px() | |
129 | inline Double_t AliAODv0::MomV0X() const {return MomPosX()+MomNegX();} | |
130 | inline Double_t AliAODv0::MomV0Y() const {return MomPosY()+MomNegY();} | |
131 | inline Double_t AliAODv0::MomV0Z() const {return MomPosZ()+MomNegZ();} | |
132 | ||
133 | inline Double_t AliAODv0::Ptot2Pos() const { | |
134 | return (::pow(MomPosX(),2) + ::pow(MomPosY(),2) + ::pow(MomPosZ(),2) ); | |
135 | } | |
136 | inline Double_t AliAODv0::Ptot2Neg() const { | |
137 | return (::pow(MomNegX(),2) + ::pow(MomNegY(),2) + ::pow(MomNegZ(),2) ); | |
138 | } | |
139 | inline Double_t AliAODv0::Ptot2V0() const {return ( Pt2V0() + ::pow(MomV0Z(),2) );} | |
140 | inline Double_t AliAODv0::Pt2V0() const { | |
141 | return (::pow(MomV0X(),2) + ::pow(MomV0Y(),2) ); | |
142 | } | |
143 | ||
144 | inline Double_t AliAODv0::MomPosAlongV0() const { | |
145 | Double_t lPtot2V0 = Ptot2V0(); | |
146 | if (lPtot2V0) | |
147 | return (MomPosX()*MomV0X() + | |
148 | MomPosY()*MomV0Y() + | |
149 | MomPosZ()*MomV0Z()) / ::sqrt(lPtot2V0); | |
150 | return 0.; | |
151 | } | |
152 | ||
153 | inline Double_t AliAODv0::MomNegAlongV0() const { | |
154 | Double_t lPtot2V0 = Ptot2V0(); | |
155 | if (lPtot2V0) | |
156 | return (MomNegX()*MomV0X() + | |
157 | MomNegY()*MomV0Y() + | |
158 | MomNegZ()*MomV0Z()) / ::sqrt(lPtot2V0); | |
159 | return 0.; | |
160 | } | |
161 | ||
162 | inline Double_t AliAODv0::AlphaV0() const { | |
163 | return Alpha(); | |
164 | } | |
165 | inline Double_t AliAODv0::PtArmV0() const { | |
166 | return QtProng(0); | |
167 | } | |
168 | ||
169 | inline Double_t AliAODv0::EPosProton() const { | |
170 | return EProng(0,2212); | |
171 | } | |
172 | ||
173 | inline Double_t AliAODv0::ENegProton() const { | |
174 | return EProng(1,2212); | |
175 | } | |
176 | ||
177 | inline Double_t AliAODv0::EPosPion() const { | |
178 | return EProng(0,211); | |
179 | } | |
180 | ||
181 | inline Double_t AliAODv0::ENegPion() const { | |
182 | return EProng(1,211); | |
183 | } | |
184 | ||
185 | inline Double_t AliAODv0::ELambda() const { | |
186 | return E(3122); | |
187 | } | |
188 | ||
189 | inline Double_t AliAODv0::EK0Short() const { | |
190 | return E(310); | |
191 | } | |
192 | ||
193 | inline Double_t AliAODv0::MassLambda() const { | |
194 | return InvMass2Prongs(0,1,2212,211); | |
195 | } | |
196 | ||
197 | inline Double_t AliAODv0::MassAntiLambda() const { | |
198 | return InvMass2Prongs(0,1,211,2212); | |
199 | } | |
200 | ||
201 | inline Double_t AliAODv0::MassK0Short() const { | |
202 | return InvMass2Prongs(0,1,211,211); | |
203 | } | |
204 | ||
205 | inline Double_t AliAODv0::RapK0Short() const { | |
206 | return Y(310); | |
207 | } | |
208 | ||
209 | inline Double_t AliAODv0::RapLambda() const { | |
210 | return Y(3122); | |
211 | } | |
212 | ||
213 | inline Double_t AliAODv0::PseudoRapV0() const { | |
214 | return Eta(); | |
215 | } | |
216 | ||
217 | inline Double_t AliAODv0::PseudoRapPos() const { | |
218 | return EtaProng(0); | |
219 | } | |
220 | ||
221 | inline Double_t AliAODv0::PseudoRapNeg() const { | |
222 | return EtaProng(1); | |
223 | } | |
224 | //---------------------------------------------------------------------------- | |
225 | ||
226 | #endif |