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684aef2e 1#ifndef ALIANALYSISTASKCHECKCASCADE_H
2#define ALIANALYSISTASKCHECKCASCADE_H
eed7ee51 3
4/* See cxx source for full Copyright notice */
5
6//-----------------------------------------------------------------
45ee0bcc 7// AliAnalysisTaskCheckCascade class
8// (AliAnalysisTaskCheckCascade)
32599cd4 9// This task has four roles :
3873f6ee 10// 1. QAing the Cascades from ESD and AOD
11// Origin: AliAnalysisTaskESDCheckV0 by B.H. Nov2007, hippolyt@in2p3.fr
32599cd4 12// 2. Prepare the plots which stand as raw material for yield extraction (wi/wo PID)
13// 3. Supply an AliCFContainer meant to define the optimised topological selections
14// 4. Rough azimuthal correlation study (Eta, Phi)
e9c3f0b6 15// Adapted to Cascade : A.Maire Mar2008, antonin.maire@ires.in2p3.fr
9d670198 16// Modified : A.Maire Mar2010, antonin.maire@ires.in2p3.fr
eed7ee51 17//-----------------------------------------------------------------
18
19class TList;
20class TH1F;
6dc8b253 21class TH2F;
ff0753e1 22class TH3F;
3873f6ee 23class TVector3;
24class THnSparse;
45ee0bcc 25
10d100d4 26class AliESDpid;
7e504402 27class AliESDEvent;
28class AliPhysicsSelection;
32599cd4 29class AliCFContainer;
30
45ee0bcc 31
32#include "TString.h"
eed7ee51 33
45ee0bcc 34#include "AliAnalysisTaskSE.h"
eed7ee51 35
45ee0bcc 36class AliAnalysisTaskCheckCascade : public AliAnalysisTaskSE {
eed7ee51 37 public:
45ee0bcc 38 AliAnalysisTaskCheckCascade();
39 AliAnalysisTaskCheckCascade(const char *name);
9d670198 40 virtual ~AliAnalysisTaskCheckCascade();
eed7ee51 41
45ee0bcc 42 virtual void UserCreateOutputObjects();
43 virtual void UserExec(Option_t *option);
3873f6ee 44 void DoAngularCorrelation(const Char_t *lCascType,
45 Double_t lInvMassCascade,
46 const Int_t *lArrTrackID,
47 TVector3 &lTVect3MomXi,
48 Double_t lEtaXi);
7e504402 49 virtual Int_t DoESDTrackWithTPCrefitMultiplicity(const AliESDEvent *lESDevent);
50
eed7ee51 51 virtual void Terminate(Option_t *);
52
9d670198 53 void SetCollidingSystems (Short_t collidingSystems = 0 ) { fCollidingSystems = collidingSystems;}
54 void SetAnalysisType (const char* analysisType = "ESD") { fAnalysisType = analysisType;}
55 void SetRelaunchV0CascVertexers (Bool_t rerunV0CascVertexers = 0 ) { fkRerunV0CascVertexers = rerunV0CascVertexers; }
56 void SetQualityCutZprimVtxPos (Bool_t qualityCutZprimVtxPos = kTRUE) { fkQualityCutZprimVtxPos = qualityCutZprimVtxPos; }
57 void SetQualityCutNoTPConlyPrimVtx (Bool_t qualityCutNoTPConlyPrimVtx = kTRUE) { fkQualityCutNoTPConlyPrimVtx = qualityCutNoTPConlyPrimVtx;}
58 void SetQualityCutTPCrefit (Bool_t qualityCutTPCrefit = kTRUE) { fkQualityCutTPCrefit = qualityCutTPCrefit; }
59 void SetQualityCut80TPCcls (Bool_t qualityCut80TPCcls = kTRUE) { fkQualityCut80TPCcls = qualityCut80TPCcls; }
60 void SetExtraSelections (Bool_t extraSelections = 0 ) { fkExtraSelections = extraSelections; }
61
62
45ee0bcc 63 private:
7e504402 64 // Note : In ROOT, "//!" means "do not stream the data from Master node to Worker node" ...
65 // your data member object is created on the worker nodes and streaming is not needed.
66 // http://root.cern.ch/download/doc/11InputOutput.pdf, page 14
eed7ee51 67
68
9d670198 69 TString fAnalysisType; // "ESD" or "AOD" analysis type
70 Short_t fCollidingSystems; // 0 = pp collisions or 1 = AA collisions
eed7ee51 71
9d670198 72 AliESDpid *fESDpid; // Tool data member to manage the TPC Bethe-Bloch info
73 //TPaveText *fPaveTextBookKeeping; // TString to store all the relevant info necessary for book keeping (v0 cuts, cascade cuts, quality cuts, ...)
f42573c1 74
9d670198 75 Bool_t fkRerunV0CascVertexers; // Boolean : kTRUE = relaunch both V0 + Cascade vertexers
76 Bool_t fkQualityCutZprimVtxPos; // Boolean : kTRUE = cut on the prim.vtx z-position
77 Bool_t fkQualityCutNoTPConlyPrimVtx; // Boolean : kTRUE = prim vtx should be SPD or Tracking vertex
78 Bool_t fkQualityCutTPCrefit; // Boolean : kTRUE = ask for TPCrefit for the 3 daughter tracks
79 Bool_t fkQualityCut80TPCcls; // Boolean : kTRUE = ask for 80 TPC clusters for each daughter track
80 Bool_t fkExtraSelections; // Boolean : kTRUE = apply tighter selections, before starting the analysis
81
82 Double_t fAlephParameters[5]; // Array to store the 5 param values for the TPC Bethe-Bloch parametrisation
83 Double_t fV0Sels[7]; // Array to store the 7 values for the different selections V0 related (if fkRerunV0CascVertexers)
84 Double_t fCascSels[8]; // Array to store the 8 values for the different selections Casc. related (if fkRerunV0CascVertexers)
7e504402 85
86
87 TList *fListHistCascade; //! List of Cascade histograms
9d670198 88
89 // - General histos (filled before the trigger selection)
90 TH1F *fHistCascadeMultiplicityBeforeTrigSel; //! Cascade multiplicity distribution
91
92 // - General histos (filled for any triggered event)
93 TH1F *fHistCascadeMultiplicityForTrigEvt; //! Cascade multiplicity distribution
94 TH1F *fHistTrackMultiplicityForTrigEvt; //! Track multiplicity distribution (without any cut = include ITS stand-alone + global tracks)
95 TH1F *fHistTPCrefitTrackMultiplicityForTrigEvt; //! Track multiplicity distribution for tracks with TPCrefit
96
97
98 // - General histos (filled for events selected in this analysis (|z(prim. vtx)| < 10 cm + prim vtx = SPD or Tracking) )
99 TH1F *fHistCascadeMultiplicityForSelEvt; //! Cascade multiplicity distribution
100 TH1F *fHistPosBestPrimaryVtxXForSelEvt; //! (best) primary vertex position distribution in x
101 TH1F *fHistPosBestPrimaryVtxYForSelEvt; //! (best) primary vertex position distribution in y
102 TH1F *fHistPosBestPrimaryVtxZForSelEvt; //! (best) primary vertex position distribution in z
103
104
105
7e504402 106
107 // - Characteristics for event with >1 cascade : Track Multiplicity, TPC clusters + Prim. vertex positions
108 TH1F *fHistTPCrefitTrackMultiplicityForCascadeEvt; //! TPCrefit Track multiplicity distribution for event with >1 cascade candidate (NB: after quality sel. within the task)
109
110 TH1F *fHistPosV0TPCClusters; //! TPC clusters distribution for Positive V0 daughter track
111 TH1F *fHistNegV0TPCClusters; //! TPC clusters distribution for Negative V0 daughter track
112 TH1F *fHistBachTPCClusters; //! TPC clusters distribution for Bachelor track
113
114 TH1F *fHistVtxStatus; //! Is there a tracking vertex in the cascade event ?
115
9d670198 116 // Vtx coming from the full tracking, for events containing at least a cascade
117 TH1F *fHistPosTrkgPrimaryVtxXForCascadeEvt; //! primary vertex position distribution in x
118 TH1F *fHistPosTrkgPrimaryVtxYForCascadeEvt; //! primary vertex position distribution in y
119 TH1F *fHistPosTrkgPrimaryVtxZForCascadeEvt; //! primary vertex position distribution in z
7e504402 120 TH1F *fHistTrkgPrimaryVtxRadius; //! primary vertex (3D) radius distribution
121
9d670198 122 // Best primary Vtx available, for events containing at least a cascade
123 TH1F *fHistPosBestPrimaryVtxXForCascadeEvt; //! (best) primary vertex position distribution in x
124 TH1F *fHistPosBestPrimaryVtxYForCascadeEvt; //! (best) primary vertex position distribution in y
125 TH1F *fHistPosBestPrimaryVtxZForCascadeEvt; //! (best) primary vertex position distribution in z
7e504402 126 TH1F *fHistBestPrimaryVtxRadius; //! (best) primary vertex radius distribution
127
128 // Correlation Best Vtx / Full Tracking Vtx
129 TH2F *f2dHistTrkgPrimVtxVsBestPrimVtx; //! Radius of prim. Vtx from tracks Vs Radius of best Prim. Vtx
130
131
132// PART 1 : Adavanced QA
133// - Typical histos on the variables used for the selection of cascades
134 TH1F *fHistEffMassXi; //! reconstructed cascade effective mass
135 TH1F *fHistChi2Xi; //! chi2 value
136 TH1F *fHistDcaXiDaughters; //! dca between Xi's daughters
137 TH1F *fHistDcaBachToPrimVertex; //! dca of the bachelor track to primary vertex
138 TH1F *fHistXiCosineOfPointingAngle; //! cosine of Xi pointing angle in a cascade
139 TH1F *fHistXiRadius; //! (transverse) radius of the cascade vertex
eed7ee51 140
f42573c1 141 // - Histos about ~ the "V0 selection part" of the cascade, coming by inheritance from AliESDv0
eed7ee51 142 TH1F *fHistMassLambdaAsCascDghter; //! Test Invariant Mass of Lambda coming from Cascade
f42573c1 143 TH1F *fHistV0Chi2Xi; //! V0 chi2 distribution, for the V0 associated to a cascade
144 TH1F *fHistDcaV0DaughtersXi; //! Dca between V0 daughters, for the V0 associated to a cascade
db166251 145 TH1F *fHistDcaV0ToPrimVertexXi; //! Dca of V0 to primary vertex, for the V0 associated to a cascade
146 TH1F *fHistV0CosineOfPointingAngleXi; //! Cosine of V0 pointing angle, for the V0 associated to a cascade
147 TH1F *fHistV0RadiusXi; //! V0 (transverse) distance distribution, for the V0 associated to a cascade
eed7ee51 148
db166251 149 TH1F *fHistDcaPosToPrimVertexXi; //! Dca of V0 positive daughter to primary vertex, for the V0 associated to a cascade
150 TH1F *fHistDcaNegToPrimVertexXi; //! Dca of V0 negative daughter to primary vertex, for the V0 associated to a cascade
eed7ee51 151
152
153 // - Effective mass histos for cascades.
154 TH1F *fHistMassXiMinus; //! reconstructed cascade effective mass, under Xi- hyp.
155 TH1F *fHistMassXiPlus; //! reconstructed cascade effective mass, under Xi+ hyp.
156 TH1F *fHistMassOmegaMinus; //! reconstructed cascade effective mass, under Omega- hyp.
157 TH1F *fHistMassOmegaPlus; //! reconstructed cascade effective mass, under Omega+ hyp.
f87cd3db 158
159 TH1F *fHistMassWithCombPIDXiMinus; //! reconstructed Xi- effective mass, with bach. comb PID
160 TH1F *fHistMassWithCombPIDXiPlus; //! reconstructed Xi+ effective mass, with bach. comb PID
161 TH1F *fHistMassWithCombPIDOmegaMinus; //! reconstructed Omega- effective mass, with bach. comb PID
162 TH1F *fHistMassWithCombPIDOmegaPlus; //! reconstructed Omega+ effective mass, with bach. comb PID
f42573c1 163
164 // - Complements for QA
90926f02 165 TH1F *fHistXiTransvMom; //! Xi transverse momentum, around the mass peak of Xi-/+
166 TH1F *fHistXiTotMom; //! Xi momentum norm, around the mass peak of Xi-/+
f42573c1 167
90926f02 168 TH1F *fHistBachTransvMomXi; //! bachelor transverse momentum, for cand. around the mass peak of Xi-/+
169 TH1F *fHistBachTotMomXi; //! bachelor momentum norm, for cand. around the mass peak of Xi-/+
170
f42573c1 171 TH1F *fHistChargeXi; //! Charge sign of the cascade candidate
172 TH1F *fHistV0toXiCosineOfPointingAngle; //! Cos. of Pointing angle between the V0 mom and the Xi-V0 vtx line
eed7ee51 173
90926f02 174 TH1F *fHistRapXi; //! rapidity of Xi candidates, around the mass peak of Xi-/+
175 TH1F *fHistRapOmega; //! rapidity of Omega candidates, around the mass peak of Omega-/+
176 TH1F *fHistEtaXi; //! eta distrib. of all the cascade candidates, around the mass peak of Xi-/+
177 TH1F *fHistThetaXi; //! theta distrib. of all the cascade candidates, around the mass peak of Xi-/+
178 TH1F *fHistPhiXi; //! phi distrib. of all the cascade candidates, around the mass peak of Xi-/+
f42573c1 179
180 TH2F *f2dHistArmenteros; //! alpha(casc. cand.) Vs PtArm(casc. cand.)
45ee0bcc 181
182 TH2F *f2dHistEffMassLambdaVsEffMassXiMinus; //! Xi- Eff mass Vs V0 Eff mass, under Xi- hyp.
183 TH2F *f2dHistEffMassXiVsEffMassOmegaMinus; //! Xi- Eff mass Vs Omega- Eff mass, for negative cascades
184 TH2F *f2dHistEffMassLambdaVsEffMassXiPlus; //! Xi+ Eff mass Vs V0 Eff mass, under Xi+ hyp.
185 TH2F *f2dHistEffMassXiVsEffMassOmegaPlus; //! Xi+ Eff mass Vs Omega+ Eff mass, for positive cascades
186
187 TH2F *f2dHistXiRadiusVsEffMassXiMinus; //! transv. casc. decay radius Vs Xi- Eff mass, under Xi- hyp.
188 TH2F *f2dHistXiRadiusVsEffMassXiPlus; //! transv. casc. decay radius Vs Xi+ Eff mass, under Xi+ hyp.
e9c3f0b6 189 TH2F *f2dHistXiRadiusVsEffMassOmegaMinus; //! transv. casc. decay radius Vs Omega- Eff mass, under Omega- hyp.
190 TH2F *f2dHistXiRadiusVsEffMassOmegaPlus; //! transv. casc. decay radius Vs Omega+ Eff mass, under Omega+ hyp.
191
3873f6ee 192
193 // PART 2 : TH3F needed for pt spectrum and yield extraction
3aedd4a5 194 // Without any PID
195 TH3F *f3dHistXiPtVsEffMassVsYXiMinus; //! casc. transv. momemtum Vs Xi- Eff mass Vs Y
196 TH3F *f3dHistXiPtVsEffMassVsYXiPlus; //! casc. transv. momemtum Vs Xi+ Eff mass Vs Y
197 TH3F *f3dHistXiPtVsEffMassVsYOmegaMinus; //! casc. transv. momemtum Vs Omega- Eff mass Vs Y
198 TH3F *f3dHistXiPtVsEffMassVsYOmegaPlus; //! casc. transv. momemtum Vs Omega+ Eff mass Vs Y
199
200 // With single PID : proton PID for Xi (pion = useless) / bachelor PID for Omega
201 // = a priori, the most important PID info for each species
202 TH3F *f3dHistXiPtVsEffMassVsYWithCombPIDXiMinus; //! casc. transv. momemtum Vs Xi- Eff mass Vs Y
203 TH3F *f3dHistXiPtVsEffMassVsYWithCombPIDXiPlus; //! casc. transv. momemtum Vs Xi+ Eff mass Vs Y
204 TH3F *f3dHistXiPtVsEffMassVsYWithCombPIDOmegaMinus; //! casc. transv. momemtum Vs Omega- Eff mass Vs Y
205 TH3F *f3dHistXiPtVsEffMassVsYWithCombPIDOmegaPlus; //! casc. transv. momemtum Vs Omega+ Eff mass Vs Y
206
207 // With double PID : proton PID + bachelor PID for Omega
208 // = "second order" refinement for omegas
209 TH3F *f3dHistXiPtVsEffMassVsYWith2CombPIDOmegaMinus; //! casc. transv. momemtum Vs Omega- Eff mass Vs Y
210 TH3F *f3dHistXiPtVsEffMassVsYWith2CombPIDOmegaPlus; //! casc. transv. momemtum Vs Omega+ Eff mass Vs Y
211
32599cd4 212 // With TPC PID : 3-sigma band on the Bethe-Bloch curve
213 // = directly detector-based
214 TH3F *f3dHistXiPtVsEffMassVsYWithTpcPIDOmegaMinus; //! casc. transv. momemtum Vs Omega- Eff mass Vs Y
215
216 // Compilation of all PID plots (3D = casc. transv. momemtum Vs Casc Eff mass Vs Y), stored into an AliCFContainer
217 AliCFContainer *fCFContCascadePIDXiMinus; //! for Xi- : Container to store any 3D histos with the different PID flavours
218 AliCFContainer *fCFContCascadePIDXiPlus; //! for Xi+ : Container to store any 3D histos with the different PID flavours
219 AliCFContainer *fCFContCascadePIDOmegaMinus; //! for Omega-: Container to store any 3D histos with the different PID flavours
220 AliCFContainer *fCFContCascadePIDOmegaPlus; //! for Omega+: Container to store any 3D histos with the different PID flavours
221
222
223
9d670198 224 // PART 3 : Towards the optimisation of topological selections / systematics
225 AliCFContainer *fCFContCascadeCuts; //! Container meant to store all the relevant distributions corresponding to the cut variables
3873f6ee 226
227
32599cd4 228 // PART 4 : Azimuthal correlation study
3873f6ee 229 THnSparseF *fHnSpAngularCorrXiMinus; //! Delta Phi(Casc,any trck) Vs Delta Eta(Casc,any trck) Vs Casc Pt Vs Pt of the tracks Vs Eff Mass
230 THnSparseF *fHnSpAngularCorrXiPlus; //! Delta Phi(Casc,any trck) Vs Delta Eta(Casc,any trck) Vs Casc Pt Vs Pt of the tracks Vs Eff Mass
231 THnSparseF *fHnSpAngularCorrOmegaMinus; //! Delta Phi(Casc,any trck) Vs Delta Eta(Casc,any trck) Vs Casc Pt Vs Pt of the tracks Vs Eff Mass
232 THnSparseF *fHnSpAngularCorrOmegaPlus; //! Delta Phi(Casc,any trck) Vs Delta Eta(Casc,any trck) Vs Casc Pt Vs Pt of the tracks Vs Eff Mass
233
eed7ee51 234
45ee0bcc 235 AliAnalysisTaskCheckCascade(const AliAnalysisTaskCheckCascade&); // not implemented
236 AliAnalysisTaskCheckCascade& operator=(const AliAnalysisTaskCheckCascade&); // not implemented
eed7ee51 237
9d670198 238 ClassDef(AliAnalysisTaskCheckCascade, 11);
eed7ee51 239};
240
241#endif