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Setting the vertex diamond to the ESD (A.Dainese)
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1 /**************************************************************************\r
2  * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *\r
3  *                                                                        *\r
4  * Author: The ALICE Off-line Project.                                    *\r
5  * Contributors are mentioned in the code where appropriate.              *\r
6  *                                                                        *\r
7  * Permission to use, copy, modify and distribute this software and its   *\r
8  * documentation strictly for non-commercial purposes is hereby granted   *\r
9  * without fee, provided that the above copyright notice appears in all   *\r
10  * copies and that both the copyright notice and this permission notice   *\r
11  * appear in the supporting documentation. The authors make no claims     *\r
12  * about the suitability of this software for any purpose. It is          *\r
13  * provided "as is" without express or implied warranty.                  *\r
14  **************************************************************************/\r
15 \r
16 /* $Id: AliAnalysisTaskESDfilter.cxx 24535 2008-03-16 22:43:30Z fca $ */\r
17  \r
18 #include <TChain.h>\r
19 #include <TTree.h>\r
20 #include <TList.h>\r
21 #include <TArrayI.h>\r
22 #include <TRandom.h>\r
23 #include <TParticle.h>\r
24 \r
25 #include "AliAnalysisTaskESDfilter.h"\r
26 #include "AliAnalysisManager.h"\r
27 #include "AliESDEvent.h"\r
28 #include "AliESDRun.h"\r
29 #include "AliStack.h"\r
30 #include "AliAODEvent.h"\r
31 #include "AliMCEvent.h"\r
32 #include "AliMCEventHandler.h"\r
33 #include "AliESDInputHandler.h"\r
34 #include "AliAODHandler.h"\r
35 #include "AliAODMCParticle.h"\r
36 #include "AliAnalysisFilter.h"\r
37 #include "AliESDMuonTrack.h"\r
38 #include "AliESDVertex.h"\r
39 #include "AliESDv0.h"\r
40 #include "AliESDkink.h"\r
41 #include "AliESDcascade.h"\r
42 #include "AliESDPmdTrack.h"\r
43 #include "AliESDCaloCluster.h"\r
44 #include "AliESDCaloCells.h"\r
45 #include "AliMultiplicity.h"\r
46 #include "AliLog.h"\r
47 \r
48 ClassImp(AliAnalysisTaskESDfilter)\r
49 \r
50 ////////////////////////////////////////////////////////////////////////\r
51 \r
52 AliAnalysisTaskESDfilter::AliAnalysisTaskESDfilter():\r
53     AliAnalysisTaskSE(),\r
54     fTrackFilter(0x0),\r
55     fKinkFilter(0x0),\r
56     fV0Filter(0x0),\r
57     fCascadeFilter(0x0),\r
58     fHighPthreshold(0),\r
59     fPtshape(0x0),\r
60     fEnableFillAOD(kTRUE)\r
61 {\r
62   // Default constructor\r
63 }\r
64 \r
65 AliAnalysisTaskESDfilter::AliAnalysisTaskESDfilter(const char* name):\r
66     AliAnalysisTaskSE(name),\r
67     fTrackFilter(0x0),\r
68     fKinkFilter(0x0),\r
69     fV0Filter(0x0),\r
70     fCascadeFilter(0x0),\r
71     fHighPthreshold(0),\r
72     fPtshape(0x0),\r
73     fEnableFillAOD(kTRUE)\r
74 {\r
75   // Constructor\r
76 }\r
77 \r
78 void AliAnalysisTaskESDfilter::UserCreateOutputObjects()\r
79 {\r
80   //\r
81   // Create Output Objects conenct filter to outputtree\r
82   // \r
83   if(OutputTree()){\r
84     OutputTree()->GetUserInfo()->Add(fTrackFilter);\r
85   }\r
86   else{\r
87     AliError("No OutputTree() for adding the track filter");\r
88   }\r
89 }\r
90 \r
91 void AliAnalysisTaskESDfilter::Init()\r
92 {\r
93     // Initialization\r
94     if (fDebug > 1) AliInfo("Init() \n");\r
95     // Call configuration file\r
96 }\r
97 \r
98 \r
99 void AliAnalysisTaskESDfilter::UserExec(Option_t */*option*/)\r
100 {\r
101 // Execute analysis for current event\r
102 //\r
103                                             \r
104   Long64_t ientry = Entry();\r
105   \r
106   if (fDebug > 0) {\r
107       printf("Filter: Analysing event # %5d\n", (Int_t) ientry);\r
108       if (fHighPthreshold == 0) AliInfo("detector PID signals are stored in each track");\r
109       if (!fPtshape) AliInfo("detector PID signals are not stored below the pt threshold");\r
110   }\r
111   // Filters must explicitely enable AOD filling in their UserExec (AG)\r
112   if (!AliAnalysisManager::GetAnalysisManager()->GetOutputEventHandler()) AliFatal("Cannot run ESD filter without an output event handler");\r
113   if(fEnableFillAOD) AliAnalysisManager::GetAnalysisManager()->GetOutputEventHandler()->SetFillAOD(kTRUE);\r
114 \r
115   ConvertESDtoAOD();\r
116 }\r
117 \r
118 void AliAnalysisTaskESDfilter::ConvertESDtoAOD() {\r
119     // ESD Filter analysis task executed for each event\r
120 \r
121     AliESDEvent* esd = dynamic_cast<AliESDEvent*>(InputEvent());\r
122     if(!esd)return;\r
123     AliESD*      old = esd->GetAliESDOld();\r
124 \r
125     // Fetch Stack for debuggging if available \r
126     AliStack *pStack = 0;\r
127     AliMCEventHandler *mcH = 0;\r
128     if(MCEvent()){\r
129       pStack = MCEvent()->Stack();\r
130       mcH = (AliMCEventHandler*) ((AliAnalysisManager::GetAnalysisManager())->GetMCtruthEventHandler()); \r
131     }\r
132     // set arrays and pointers\r
133     Float_t posF[3];\r
134     Double_t pos[3];\r
135     Double_t p[3];\r
136     Double_t momPos[3]; \r
137     Double_t momNeg[3];\r
138     Double_t momBach[3];\r
139     Double_t momPosAtV0vtx[3];\r
140     Double_t momNegAtV0vtx[3];\r
141     Double_t momBachAtCascadeVtx[3];\r
142     Double_t covVtx[6];\r
143     Double_t covTr[21];\r
144     Double_t pid[10];\r
145 \r
146     for (Int_t i = 0; i < 6; i++)  covVtx[i] = 0.;\r
147     for (Int_t i = 0; i < 21; i++) covTr [i] = 0.;\r
148 \r
149     \r
150     // loop over events and fill them\r
151     // Multiplicity information needed by the header (to be revised!)\r
152     Int_t nTracks    = esd->GetNumberOfTracks();\r
153     for (Int_t iTrack=0; iTrack<nTracks; ++iTrack) esd->GetTrack(iTrack)->SetESDEvent(esd);\r
154 \r
155     //    if (fDebug > 0) printf("-------------------Bo: Number of ESD tracks %d \n",nTracks);\r
156 \r
157     Int_t nPosTracks = 0;\r
158     \r
159     // Update the header\r
160 \r
161     AliAODHeader* header = AODEvent()->GetHeader();\r
162     \r
163     header->SetRunNumber(esd->GetRunNumber());\r
164     header->SetOfflineTrigger(fInputHandler->IsEventSelected()); // propagate the decision of the physics selection\r
165     if (old) {\r
166         header->SetBunchCrossNumber(0);\r
167         header->SetOrbitNumber(0);\r
168         header->SetPeriodNumber(0);\r
169         header->SetEventType(0);\r
170         header->SetMuonMagFieldScale(-999.);\r
171         header->SetCentrality(-999.);       \r
172     } else {\r
173         header->SetBunchCrossNumber(esd->GetBunchCrossNumber());\r
174         header->SetOrbitNumber(esd->GetOrbitNumber());\r
175         header->SetPeriodNumber(esd->GetPeriodNumber());\r
176         header->SetEventType(esd->GetEventType());\r
177         header->SetCentrality(-999.);        // FIXME\r
178     }\r
179     // Trigger\r
180     header->SetFiredTriggerClasses(esd->GetFiredTriggerClasses());\r
181     header->SetTriggerMask(esd->GetTriggerMask()); \r
182     header->SetTriggerCluster(esd->GetTriggerCluster());\r
183     \r
184 \r
185     header->SetMagneticField(esd->GetMagneticField());\r
186     header->SetMuonMagFieldScale(esd->GetCurrentDip()/6000.);\r
187     header->SetZDCN1Energy(esd->GetZDCN1Energy());\r
188     header->SetZDCP1Energy(esd->GetZDCP1Energy());\r
189     header->SetZDCN2Energy(esd->GetZDCN2Energy());\r
190     header->SetZDCP2Energy(esd->GetZDCP2Energy());\r
191     header->SetZDCEMEnergy(esd->GetZDCEMEnergy(0),esd->GetZDCEMEnergy(1));\r
192 \r
193     \r
194     Float_t diamxy[2]={esd->GetDiamondX(),esd->GetDiamondY()};\r
195     Float_t diamcov[3]; esd->GetDiamondCovXY(diamcov);\r
196     header->SetDiamond(diamxy,diamcov);\r
197     header->SetDiamondZ(esd->GetDiamondZ(),esd->GetSigma2DiamondZ());\r
198 //\r
199 //\r
200     Int_t nV0s      = esd->GetNumberOfV0s();\r
201     Int_t nCascades = esd->GetNumberOfCascades();\r
202     Int_t nKinks    = esd->GetNumberOfKinks();\r
203     Int_t nVertices = nV0s + nCascades /*V0 wihtin cascade already counted*/+ nKinks + 1 /* = prim. vtx*/;\r
204     Int_t nPileSPDVertices=1+esd->GetNumberOfPileupVerticesSPD(); // also SPD main vertex\r
205     Int_t nPileTrkVertices=esd->GetNumberOfPileupVerticesTracks();\r
206     nVertices+=nPileSPDVertices;\r
207     nVertices+=nPileTrkVertices;\r
208     Int_t nJets     = 0;\r
209     Int_t nCaloClus = esd->GetNumberOfCaloClusters();\r
210     Int_t nFmdClus  = 0;\r
211     Int_t nPmdClus  = esd->GetNumberOfPmdTracks();\r
212     \r
213     if (fDebug > 0) \r
214         printf("   NV0=%d  NCASCADES=%d  NKINKS=%d\n", nV0s, nCascades, nKinks);\r
215        \r
216     AODEvent()->ResetStd(nTracks, nVertices, nV0s, nCascades, nJets, nCaloClus, nFmdClus, nPmdClus);\r
217 \r
218 \r
219     AliAODTrack   *aodTrack       = 0x0;\r
220     AliAODPid     *detpid         = 0x0;\r
221     Double_t      timezero        = 0;   //TO BE FIXED\r
222     AliAODVertex  *vV0FromCascade = 0x0;\r
223     AliAODv0      *aodV0          = 0x0;\r
224     AliAODcascade *aodCascade     = 0x0;\r
225     \r
226     // RefArray to store the mapping between esd track number and newly created AOD-Track\r
227     TRefArray   *aodTrackRefs = NULL;\r
228     if (nTracks > 0) aodTrackRefs = new TRefArray(nTracks);\r
229 \r
230     // RefArray to store a mapping between esd V0 number and newly created AOD-Vertex V0\r
231     TRefArray   *aodV0VtxRefs = NULL;\r
232     if (nV0s > 0) aodV0VtxRefs = new TRefArray(nV0s);\r
233 \r
234     // RefArray to store the mapping between esd V0 number and newly created AOD-V0\r
235     TRefArray   *aodV0Refs = NULL;\r
236     if (nV0s > 0) aodV0Refs = new TRefArray(nV0s);\r
237 \r
238     \r
239 \r
240 \r
241 \r
242     // Array to take into account the tracks already added to the AOD\r
243     Bool_t * usedTrack = NULL;\r
244     if (nTracks>0) {\r
245         usedTrack = new Bool_t[nTracks];\r
246         for (Int_t iTrack=0; iTrack<nTracks; ++iTrack) usedTrack[iTrack]=kFALSE;\r
247     }\r
248     // Array to take into account the V0s already added to the AOD (V0 within cascades)\r
249     Bool_t * usedV0 = NULL;\r
250     if (nV0s>0) {\r
251         usedV0 = new Bool_t[nV0s];\r
252         for (Int_t iV0=0; iV0<nV0s; ++iV0) usedV0[iV0]=kFALSE;\r
253     }\r
254     // Array to take into account the kinks already added to the AOD\r
255     Bool_t * usedKink = NULL;\r
256     if (nKinks>0) {\r
257         usedKink = new Bool_t[nKinks];\r
258         for (Int_t iKink=0; iKink<nKinks; ++iKink) usedKink[iKink]=kFALSE;\r
259     }\r
260     \r
261     // Access to the AOD container of vertices\r
262     TClonesArray &vertices = *(AODEvent()->GetVertices());\r
263     Int_t jVertices=0;\r
264     \r
265     // Access to the AOD container of tracks\r
266     TClonesArray &tracks = *(AODEvent()->GetTracks());\r
267     Int_t jTracks=0; \r
268     \r
269     // Access to the AOD container of Cascades\r
270     TClonesArray &cascades = *(AODEvent()->GetCascades());\r
271     Int_t jCascades=0;\r
272 \r
273     // Access to the AOD container of V0s\r
274     TClonesArray &v0s = *(AODEvent()->GetV0s());\r
275     Int_t jV0s=0;\r
276     \r
277     // Add primary vertex. The primary tracks will be defined\r
278     // after the loops on the composite objects (V0, cascades, kinks)\r
279     const AliESDVertex *vtx = esd->GetPrimaryVertex();\r
280     \r
281     vtx->GetXYZ(pos); // position\r
282     vtx->GetCovMatrix(covVtx); //covariance matrix\r
283     \r
284     AliAODVertex * primary = new(vertices[jVertices++])\r
285         AliAODVertex(pos, covVtx, vtx->GetChi2toNDF(), NULL, -1, AliAODVertex::kPrimary);\r
286     primary->SetName(vtx->GetName());\r
287     primary->SetTitle(vtx->GetTitle());\r
288 \r
289     TString vtitle = vtx->GetTitle();\r
290     if (!vtitle.Contains("VertexerTracks")) \r
291       primary->SetNContributors(vtx->GetNContributors());\r
292 \r
293     if (fDebug > 0) primary->Print();\r
294 \r
295 \r
296     // Add SPD "main" vertex \r
297     const AliESDVertex *vtxS = esd->GetPrimaryVertexSPD();\r
298     vtxS->GetXYZ(pos); // position\r
299     vtxS->GetCovMatrix(covVtx); //covariance matrix\r
300     AliAODVertex * mVSPD = new(vertices[jVertices++])\r
301       AliAODVertex(pos, covVtx, vtxS->GetChi2toNDF(), NULL, -1, AliAODVertex::kMainSPD);\r
302     mVSPD->SetName(vtxS->GetName());\r
303     mVSPD->SetTitle(vtxS->GetTitle());\r
304     mVSPD->SetNContributors(vtxS->GetNContributors()); \r
305 \r
306     // Add SPD pileup vertices\r
307     for(Int_t iV=0; iV<nPileSPDVertices-1; iV++){\r
308       const AliESDVertex *vtxP = esd->GetPileupVertexSPD(iV);\r
309       vtxP->GetXYZ(pos); // position\r
310       vtxP->GetCovMatrix(covVtx); //covariance matrix\r
311       AliAODVertex * pVSPD =  new(vertices[jVertices++])\r
312         AliAODVertex(pos, covVtx, vtxP->GetChi2toNDF(), NULL, -1, AliAODVertex::kPileupSPD);\r
313       pVSPD->SetName(vtxP->GetName());\r
314       pVSPD->SetTitle(vtxP->GetTitle());\r
315       pVSPD->SetNContributors(vtxP->GetNContributors()); \r
316     }\r
317 \r
318     // Add TRK pileup vertices\r
319     for(Int_t iV=0; iV<nPileTrkVertices; iV++){\r
320       const AliESDVertex *vtxP = esd->GetPileupVertexTracks(iV);\r
321       vtxP->GetXYZ(pos); // position\r
322       vtxP->GetCovMatrix(covVtx); //covariance matrix\r
323       AliAODVertex * pVTRK = new(vertices[jVertices++])\r
324         AliAODVertex(pos, covVtx, vtxP->GetChi2toNDF(), NULL, -1, AliAODVertex::kPileupTracks);\r
325       pVTRK->SetName(vtxP->GetName());\r
326       pVTRK->SetTitle(vtxP->GetTitle());\r
327       pVTRK->SetNContributors(vtxP->GetNContributors());\r
328     }\r
329 \r
330     // Create vertices starting from the most complex objects\r
331     Double_t chi2 = 0.;\r
332     \r
333     // Cascades (Modified by A.Maire - February 2009)\r
334     for (Int_t nCascade = 0; nCascade < nCascades; ++nCascade) {\r
335 \r
336         if (fDebug > 1) \r
337         printf("\n ******** Cascade number : %d/%d *********\n", nCascade, nCascades);\r
338 \r
339         // 0- Preparation\r
340         //\r
341         AliESDcascade *esdCascade = esd->GetCascade(nCascade);\r
342                 Int_t  idxPosFromV0Dghter  = esdCascade->GetPindex();\r
343                 Int_t  idxNegFromV0Dghter  = esdCascade->GetNindex();\r
344                 Int_t  idxBachFromCascade  = esdCascade->GetBindex();\r
345         \r
346         AliESDtrack  *esdCascadePos  = esd->GetTrack( idxPosFromV0Dghter);\r
347         AliESDtrack  *esdCascadeNeg  = esd->GetTrack( idxNegFromV0Dghter);\r
348         AliESDtrack  *esdCascadeBach = esd->GetTrack( idxBachFromCascade);\r
349 \r
350         // Identification of the V0 within the esdCascade (via both daughter track indices)\r
351         AliESDv0 * currentV0   = 0x0;\r
352         Int_t      idxV0FromCascade = -1;\r
353         \r
354         for (Int_t iV0=0; iV0<nV0s; ++iV0) {\r
355         \r
356                          currentV0 = esd->GetV0(iV0);\r
357                 Int_t posCurrentV0 = currentV0->GetPindex();\r
358                 Int_t negCurrentV0 = currentV0->GetNindex();\r
359         \r
360                 if (posCurrentV0==idxPosFromV0Dghter && negCurrentV0==idxNegFromV0Dghter) {\r
361                 idxV0FromCascade = iV0;\r
362                 break;\r
363                 }\r
364         }\r
365 \r
366         if(idxV0FromCascade < 0){\r
367                 printf("Cascade - no matching for the V0 (index V0 = -1) ! Skip ... \n");\r
368                 continue;\r
369         }// a priori, useless check, but safer ... in case of pb with tracks "out of bounds"\r
370 \r
371         if (fDebug > 1) \r
372                 printf("Cascade %d - V0fromCascade ind : %d/%d\n", nCascade, idxV0FromCascade, nV0s);\r
373 \r
374         AliESDv0 *esdV0FromCascade   = esd->GetV0(idxV0FromCascade);\r
375         \r
376 \r
377         // 1 - Cascade selection \r
378         \r
379         //      AliESDVertex *esdPrimVtx = new AliESDVertex(*(esd->GetPrimaryVertex()));\r
380         //      TList cascadeObjects;\r
381         //      cascadeObjects.AddAt(esdV0FromCascade, 0);\r
382         //      cascadeObjects.AddAt(esdCascadePos,    1);\r
383         //      cascadeObjects.AddAt(esdCascadeNeg,    2);\r
384         //      cascadeObjects.AddAt(esdCascade,       3);\r
385         //      cascadeObjects.AddAt(esdCascadeBach,   4);\r
386         //      cascadeObjects.AddAt(esdPrimVtx,       5);\r
387         // \r
388         //      UInt_t selectCascade = 0;\r
389         //      if (fCascadeFilter) {\r
390         //        // selectCascade = fCascadeFilter->IsSelected(&cascadeObjects); \r
391         //              // FIXME AliESDCascadeCuts to be implemented ...\r
392         // \r
393         //              // Here we may encounter a moot point at the V0 level \r
394         //              // between the cascade selections and the V0 ones :\r
395         //              // the V0 selected along with the cascade (secondary V0) may \r
396         //              // usually be removed from the dedicated V0 selections (prim V0) ...\r
397         //              // -> To be discussed !\r
398         // \r
399         //        // this is a little awkward but otherwise the \r
400         //        // list wants to access the pointer (delete it) \r
401         //        // again when going out of scope\r
402         //        delete cascadeObjects.RemoveAt(5); // esdPrimVtx created via copy construct\r
403         //        esdPrimVtx = 0;\r
404         //        if (!selectCascade) \r
405         //          continue;\r
406         //      }\r
407         //      else{\r
408         //        delete cascadeObjects.RemoveAt(5); // esdPrimVtx created via copy construct\r
409         //        esdPrimVtx = 0;\r
410         //      }\r
411 \r
412         // 2 - Add the cascade vertex\r
413         \r
414         esdCascade->GetXYZcascade(pos[0], pos[1], pos[2]);\r
415         esdCascade->GetPosCovXi(covVtx);\r
416         chi2 = esdCascade->GetChi2Xi(); \r
417         \r
418         AliAODVertex *vCascade = new(vertices[jVertices++]) AliAODVertex( pos,\r
419                                                                           covVtx,\r
420                                                                           chi2, // FIXME = Chi2/NDF will be needed\r
421                                                                           primary,\r
422                                                                           nCascade, // id\r
423                                                                           AliAODVertex::kCascade);\r
424         primary->AddDaughter(vCascade);\r
425 \r
426         if (fDebug > 2) {\r
427                 printf("---- Cascade / Cascade Vertex (AOD) : \n");\r
428                 vCascade->Print();\r
429         }\r
430 \r
431 \r
432         // 3 - Add the bachelor track from the cascade\r
433         \r
434         if (!usedTrack[idxBachFromCascade]) {\r
435 \r
436         esdCascadeBach->GetPxPyPz(momBach);\r
437         esdCascadeBach->GetXYZ(pos);\r
438         esdCascadeBach->GetCovarianceXYZPxPyPz(covTr);\r
439         esdCascadeBach->GetESDpid(pid);\r
440 \r
441             usedTrack[idxBachFromCascade] = kTRUE;\r
442             UInt_t selectInfo = 0;\r
443             if (fTrackFilter) selectInfo = fTrackFilter->IsSelected(esdCascadeBach);\r
444             if(mcH)mcH->SelectParticle(esdCascadeBach->GetLabel());\r
445             aodTrack = new(tracks[jTracks++]) AliAODTrack(esdCascadeBach->GetID(),\r
446                                                           esdCascadeBach->GetLabel(), \r
447                                                           momBach, \r
448                                                           kTRUE,\r
449                                                           pos,\r
450                                                           kFALSE, // Why kFALSE for "isDCA" ? FIXME\r
451                                                           covTr, \r
452                                                           (Short_t)esdCascadeBach->GetSign(),\r
453                                                           esdCascadeBach->GetITSClusterMap(), \r
454                                                           pid,\r
455                                                           vCascade,\r
456                                                           kTRUE,  // usedForVtxFit = kFALSE ? FIXME\r
457                                                           vtx->UsesTrack(esdCascadeBach->GetID()),\r
458                                                           AliAODTrack::kSecondary,\r
459                                                           selectInfo);\r
460             aodTrack->SetTPCClusterMap(esdCascadeBach->GetTPCClusterMap());\r
461             aodTrack->SetTPCSharedMap (esdCascadeBach->GetTPCSharedMap());\r
462             aodTrack->SetChi2perNDF(Chi2perNDF(esdCascadeBach));\r
463             aodTrackRefs->AddAt(aodTrack,idxBachFromCascade);\r
464             \r
465             if (esdCascadeBach->GetSign() > 0) nPosTracks++;\r
466             aodTrack->ConvertAliPIDtoAODPID();\r
467             aodTrack->SetFlags(esdCascadeBach->GetStatus());\r
468             SetAODPID(esdCascadeBach,aodTrack,detpid,timezero,esd->GetMagneticField());\r
469         }\r
470         else {\r
471             aodTrack = dynamic_cast<AliAODTrack*>( aodTrackRefs->At(idxBachFromCascade) );\r
472         }\r
473 \r
474         vCascade->AddDaughter(aodTrack);\r
475 \r
476         if (fDebug > 4) {\r
477                 printf("---- Cascade / bach dghter : \n");\r
478                 aodTrack->Print();\r
479         }\r
480         \r
481 \r
482         // 4 - Add the V0 from the cascade. \r
483         // = V0vtx + both pos and neg daughter tracks + the aodV0 itself\r
484         //\r
485 \r
486         if ( !usedV0[idxV0FromCascade] ) {\r
487         // 4.A - if VO structure hasn't been created yet\r
488                 \r
489                 // 4.A.1 - Create the V0 vertex of the cascade\r
490         \r
491                 esdV0FromCascade->GetXYZ(pos[0], pos[1], pos[2]);\r
492                 esdV0FromCascade->GetPosCov(covVtx);\r
493                 chi2 = esdV0FromCascade->GetChi2V0();  // = chi2/NDF since NDF = 2*2-3 ?\r
494                         \r
495                 vV0FromCascade = new(vertices[jVertices++]) AliAODVertex(pos,\r
496                                                                         covVtx,\r
497                                                                         chi2,\r
498                                                                         vCascade,\r
499                                                                         idxV0FromCascade, //id of ESDv0\r
500                                                                         AliAODVertex::kV0);\r
501                 // Note:\r
502                 //    one V0 can be used by several cascades.\r
503                 // So, one AOD V0 vtx can have several parent vtx.\r
504                 // This is not directly allowed by AliAODvertex.\r
505                 // Setting the parent vtx (here = param "vCascade") doesn't lead to a crash\r
506                 // but to a problem of consistency within AODEvent.\r
507                 // -> See below paragraph 4.B, for the proposed treatment of such a case.\r
508 \r
509                 // Add the vV0FromCascade to the aodVOVtxRefs\r
510                 aodV0VtxRefs->AddAt(vV0FromCascade,idxV0FromCascade);\r
511                 \r
512                 \r
513                 // 4.A.2 - Add the positive tracks from the V0\r
514                 \r
515                 esdCascadePos->GetPxPyPz(momPos);\r
516                 esdCascadePos->GetXYZ(pos);\r
517                 esdCascadePos->GetCovarianceXYZPxPyPz(covTr);\r
518                 esdCascadePos->GetESDpid(pid);\r
519                 \r
520         \r
521                 if (!usedTrack[idxPosFromV0Dghter]) {\r
522                 usedTrack[idxPosFromV0Dghter] = kTRUE;\r
523         \r
524                 UInt_t selectInfo = 0;\r
525                 if (fTrackFilter) selectInfo = fTrackFilter->IsSelected(esdCascadePos);\r
526                 if(mcH) mcH->SelectParticle(esdCascadePos->GetLabel());\r
527                 aodTrack = new(tracks[jTracks++]) AliAODTrack(  esdCascadePos->GetID(),\r
528                                                                 esdCascadePos->GetLabel(), \r
529                                                                 momPos, \r
530                                                                 kTRUE,\r
531                                                                 pos,\r
532                                                                 kFALSE, // Why kFALSE for "isDCA" ? FIXME\r
533                                                                 covTr, \r
534                                                                 (Short_t)esdCascadePos->GetSign(),\r
535                                                                 esdCascadePos->GetITSClusterMap(), \r
536                                                                 pid,\r
537                                                                 vV0FromCascade,\r
538                                                                 kTRUE,  // usedForVtxFit = kFALSE ? FIXME\r
539                                                                 vtx->UsesTrack(esdCascadePos->GetID()),\r
540                                                                 AliAODTrack::kSecondary,\r
541                                                                 selectInfo);\r
542                 aodTrack->SetTPCClusterMap(esdCascadePos->GetTPCClusterMap());\r
543                 aodTrack->SetTPCSharedMap (esdCascadePos->GetTPCSharedMap());\r
544                 aodTrack->SetChi2perNDF(Chi2perNDF(esdCascadePos));\r
545                 aodTrackRefs->AddAt(aodTrack,idxPosFromV0Dghter);\r
546 \r
547                 if (esdCascadePos->GetSign() > 0) nPosTracks++;\r
548                 aodTrack->ConvertAliPIDtoAODPID();\r
549                 aodTrack->SetFlags(esdCascadePos->GetStatus());\r
550                 SetAODPID(esdCascadePos,aodTrack,detpid,timezero,esd->GetMagneticField());\r
551                 }\r
552                 else {\r
553                         aodTrack = dynamic_cast<AliAODTrack*>(aodTrackRefs->At(idxPosFromV0Dghter));\r
554                 }\r
555                 vV0FromCascade->AddDaughter(aodTrack);\r
556         \r
557         \r
558                 // 4.A.3 - Add the negative tracks from the V0\r
559                 \r
560                 esdCascadeNeg->GetPxPyPz(momNeg);\r
561                 esdCascadeNeg->GetXYZ(pos);\r
562                 esdCascadeNeg->GetCovarianceXYZPxPyPz(covTr);\r
563                 esdCascadeNeg->GetESDpid(pid);\r
564                 \r
565                 \r
566                 if (!usedTrack[idxNegFromV0Dghter]) {\r
567                 usedTrack[idxNegFromV0Dghter] = kTRUE;\r
568         \r
569                 UInt_t selectInfo = 0;\r
570                 if (fTrackFilter) selectInfo = fTrackFilter->IsSelected(esdCascadeNeg);\r
571                 if(mcH)mcH->SelectParticle(esdCascadeNeg->GetLabel());\r
572                 aodTrack = new(tracks[jTracks++]) AliAODTrack(  esdCascadeNeg->GetID(),\r
573                                                                 esdCascadeNeg->GetLabel(),\r
574                                                                 momNeg,\r
575                                                                 kTRUE,\r
576                                                                 pos,\r
577                                                                 kFALSE, // Why kFALSE for "isDCA" ? FIXME\r
578                                                                 covTr, \r
579                                                                 (Short_t)esdCascadeNeg->GetSign(),\r
580                                                                 esdCascadeNeg->GetITSClusterMap(), \r
581                                                                 pid,\r
582                                                                 vV0FromCascade,\r
583                                                                 kTRUE,  // usedForVtxFit = kFALSE ? FIXME\r
584                                                                 vtx->UsesTrack(esdCascadeNeg->GetID()),\r
585                                                                 AliAODTrack::kSecondary,\r
586                                                                 selectInfo);\r
587                 aodTrack->SetTPCClusterMap(esdCascadeNeg->GetTPCClusterMap());\r
588                 aodTrack->SetTPCSharedMap (esdCascadeNeg->GetTPCSharedMap());\r
589                 aodTrack->SetChi2perNDF(Chi2perNDF(esdCascadeNeg));\r
590                 aodTrackRefs->AddAt(aodTrack,idxNegFromV0Dghter);\r
591                 \r
592                 if (esdCascadeNeg->GetSign() > 0) nPosTracks++;\r
593                 aodTrack->ConvertAliPIDtoAODPID();\r
594                 aodTrack->SetFlags(esdCascadeNeg->GetStatus());\r
595                 SetAODPID(esdCascadeNeg,aodTrack,detpid,timezero,esd->GetMagneticField());\r
596                 }\r
597                 else {\r
598                         aodTrack = dynamic_cast<AliAODTrack*>(aodTrackRefs->At(idxNegFromV0Dghter));\r
599                 }\r
600         \r
601                 vV0FromCascade->AddDaughter(aodTrack);\r
602         \r
603                         \r
604                 // 4.A.4 - Add the V0 from cascade to the V0 array\r
605 \r
606                 Double_t  dcaV0Daughters      = esdV0FromCascade->GetDcaV0Daughters();\r
607                 Double_t  dcaV0ToPrimVertex   = esdV0FromCascade->GetD( esd->GetPrimaryVertex()->GetX(),\r
608                                                                         esd->GetPrimaryVertex()->GetY(),\r
609                                                                         esd->GetPrimaryVertex()->GetZ() );\r
610                 esdV0FromCascade->GetPPxPyPz( momPosAtV0vtx[0],momPosAtV0vtx[1],momPosAtV0vtx[2] ); \r
611                 esdV0FromCascade->GetNPxPyPz( momNegAtV0vtx[0],momNegAtV0vtx[1],momNegAtV0vtx[2] ); \r
612         \r
613                 Double_t dcaDaughterToPrimVertex[2] = { 999., 999.}; // ..[0] = DCA in (x,y) for Pos and ..[1] = Neg\r
614                 dcaDaughterToPrimVertex[0] = TMath::Abs(esdCascadePos->GetD(    esd->GetPrimaryVertex()->GetX(),\r
615                                                                                 esd->GetPrimaryVertex()->GetY(),\r
616                                                                                 esd->GetMagneticField())        );\r
617                 dcaDaughterToPrimVertex[1] = TMath::Abs(esdCascadeNeg->GetD(    esd->GetPrimaryVertex()->GetX(),\r
618                                                                                 esd->GetPrimaryVertex()->GetY(),\r
619                                                                                 esd->GetMagneticField())        );\r
620                 \r
621                 aodV0 = new(v0s[jV0s++]) AliAODv0( vV0FromCascade, \r
622                                                    dcaV0Daughters,\r
623                                                    dcaV0ToPrimVertex, \r
624                                                    momPosAtV0vtx, \r
625                                                    momNegAtV0vtx, \r
626                                                    dcaDaughterToPrimVertex); \r
627                 // set the aod v0 on-the-fly status\r
628                 aodV0->SetOnFlyStatus(esdV0FromCascade->GetOnFlyStatus());\r
629 \r
630                 // Add the aodV0 to the aodVORefs\r
631                 aodV0Refs->AddAt(aodV0,idxV0FromCascade);\r
632                 \r
633         usedV0[idxV0FromCascade] = kTRUE;\r
634 \r
635         } else { \r
636         // 4.B - if V0 structure already used\r
637 \r
638                 // Note :\r
639                 //    one V0 can be used by several cascades (frequent in PbPb evts) : \r
640                 // same V0 which used but attached to different bachelor tracks\r
641                 // -> aodVORefs and aodV0VtxRefs are needed.\r
642                 // Goal : avoid a redundancy of the info in "Vertices" and "v0s" clones array.\r
643         \r
644                 vV0FromCascade = dynamic_cast<AliAODVertex*>( aodV0VtxRefs->At(idxV0FromCascade) );\r
645                 aodV0          = dynamic_cast<AliAODv0*>    ( aodV0Refs   ->At(idxV0FromCascade) );\r
646                  \r
647                 // - Treatment of the parent for such a "re-used" V0 :\r
648                 // Insert the cascade that reuses the V0 vertex in the lineage chain\r
649                 // Before : vV0 -> vCascade1 -> vPrimary\r
650                 //  - Hyp : cascade2 uses the same V0 as cascade1\r
651                 //  After :  vV0 -> vCascade2 -> vCascade1 -> vPrimary\r
652                 \r
653                 AliAODVertex *vCascadePreviousParent = dynamic_cast<AliAODVertex*> (vV0FromCascade->GetParent());\r
654                         vV0FromCascade->SetParent(vCascade);\r
655                         vCascade      ->SetParent(vCascadePreviousParent);\r
656 \r
657                 if(fDebug > 2)  \r
658                         printf("---- Cascade / Lineage insertion\n"\r
659                                 "Parent of V0 vtx                 = Cascade vtx %p\n"\r
660                                 "Parent of the cascade vtx        = Cascade vtx %p\n"\r
661                                 "Parent of the parent cascade vtx = Cascade vtx %p\n", \r
662                                                 static_cast<void*> (vV0FromCascade->GetParent()),\r
663                                                 static_cast<void*> (vCascade->GetParent()),\r
664                                                 static_cast<void*> (vCascadePreviousParent->GetParent()) );\r
665                 \r
666         }// end if V0 structure already used\r
667 \r
668         if (fDebug > 2) {\r
669                 printf("---- Cascade / V0 vertex: \n");\r
670                 vV0FromCascade->Print();\r
671         }\r
672 \r
673         if (fDebug > 4) {\r
674                 printf("---- Cascade / pos dghter : \n");\r
675                         aodTrack->Print();\r
676                 printf("---- Cascade / neg dghter : \n");\r
677                         aodTrack->Print();\r
678                 printf("---- Cascade / aodV0 : \n");\r
679                         aodV0->Print();\r
680         }\r
681 \r
682         // In any case (used V0 or not), add the V0 vertex to the cascade one.\r
683         vCascade->AddDaughter(vV0FromCascade);  \r
684         \r
685                 \r
686         // 5 - Add the primary track of the cascade (if any)\r
687 \r
688 \r
689         // 6 - Add the cascade to the AOD array of cascades\r
690 \r
691         Double_t dcaBachToPrimVertexXY = TMath::Abs(esdCascadeBach->GetD(esd->GetPrimaryVertex()->GetX(),\r
692                                                                          esd->GetPrimaryVertex()->GetY(),\r
693                                                                          esd->GetMagneticField())        );\r
694 \r
695         esdCascade->GetBPxPyPz(momBachAtCascadeVtx[0], momBachAtCascadeVtx[1], momBachAtCascadeVtx[2]);\r
696 \r
697         aodCascade = new(cascades[jCascades++]) AliAODcascade(  vCascade,\r
698                                                                 esdCascade->Charge(),\r
699                                                                 esdCascade->GetDcaXiDaughters(),\r
700                                                                 -999.,\r
701                 // DCAXiToPrimVtx -> needs to be calculated   ----|\r
702                 // doesn't exist at ESD level;\r
703                 // See AODcascade::DcaXiToPrimVertex(Double, Double, Double)\r
704                                                                 dcaBachToPrimVertexXY,\r
705                                                                 momBachAtCascadeVtx,\r
706                                                                 *aodV0);\r
707         \r
708         if (fDebug > 3) {\r
709                 printf("---- Cascade / AOD cascade : \n\n");\r
710                 aodCascade->PrintXi(primary->GetX(), primary->GetY(), primary->GetZ());\r
711         }\r
712 \r
713     } // end of the loop on cascades\r
714 \r
715     cascades.Expand(jCascades);\r
716 \r
717 \r
718     //\r
719     // V0s\r
720     //\r
721     \r
722     for (Int_t nV0 = 0; nV0 < nV0s; ++nV0) {\r
723         \r
724         if (usedV0[nV0]) continue; // skip if already added to the AOD\r
725         \r
726         AliESDv0 *v0 = esd->GetV0(nV0);\r
727         Int_t posFromV0 = v0->GetPindex();\r
728         Int_t negFromV0 = v0->GetNindex();\r
729         \r
730         // V0 selection \r
731         //\r
732         AliESDVertex *esdVtx   = new AliESDVertex(*(esd->GetPrimaryVertex()));\r
733         AliESDtrack  *esdV0Pos = esd->GetTrack(posFromV0);\r
734         AliESDtrack  *esdV0Neg = esd->GetTrack(negFromV0);\r
735         TList v0objects;\r
736         v0objects.AddAt(v0,                      0);\r
737         v0objects.AddAt(esdV0Pos,                1);\r
738         v0objects.AddAt(esdV0Neg,                2);\r
739         v0objects.AddAt(esdVtx,                  3);\r
740         UInt_t selectV0 = 0;\r
741         if (fV0Filter) {\r
742           selectV0 = fV0Filter->IsSelected(&v0objects);\r
743           // this is a little awkward but otherwise the \r
744           // list wants to access the pointer (delete it) \r
745           // again when going out of scope\r
746           delete v0objects.RemoveAt(3); // esdVtx created via copy construct\r
747           esdVtx = 0;\r
748           if (!selectV0) \r
749             continue;\r
750         }\r
751         else{\r
752           delete v0objects.RemoveAt(3); // esdVtx created via copy construct\r
753           esdVtx = 0;\r
754         }\r
755     \r
756         v0->GetXYZ(pos[0], pos[1], pos[2]);\r
757 \r
758         if (!old) {\r
759             chi2 = v0->GetChi2V0(); // = chi2/NDF since NDF = 2*2-3\r
760             v0->GetPosCov(covVtx);\r
761         } else {\r
762             chi2 = -999.;\r
763             for (Int_t i = 0; i < 6; i++)  covVtx[i] = 0.;\r
764         }\r
765 \r
766 \r
767         AliAODVertex * vV0 = \r
768           new(vertices[jVertices++]) AliAODVertex(pos,\r
769                                                   covVtx,\r
770                                                   chi2,\r
771                                                   primary,\r
772                                                   nV0,\r
773                                                   AliAODVertex::kV0);\r
774         primary->AddDaughter(vV0);\r
775         \r
776 \r
777         // Add the positive tracks from the V0\r
778         \r
779         esdV0Pos->GetPxPyPz(momPos);\r
780         esdV0Pos->GetXYZ(pos);\r
781         esdV0Pos->GetCovarianceXYZPxPyPz(covTr);\r
782         esdV0Pos->GetESDpid(pid);\r
783         \r
784         if (!usedTrack[posFromV0]) {\r
785             usedTrack[posFromV0] = kTRUE;\r
786             UInt_t selectInfo = 0;\r
787             if (fTrackFilter) selectInfo = fTrackFilter->IsSelected(esdV0Pos);\r
788             if(mcH)mcH->SelectParticle(esdV0Pos->GetLabel());\r
789             aodTrack = new(tracks[jTracks++]) AliAODTrack(esdV0Pos->GetID(),\r
790                                                           esdV0Pos->GetLabel(), \r
791                                                           momPos, \r
792                                                           kTRUE,\r
793                                                           pos,\r
794                                                           kFALSE,\r
795                                                           covTr, \r
796                                                           (Short_t)esdV0Pos->GetSign(),\r
797                                                           esdV0Pos->GetITSClusterMap(), \r
798                                                           pid,\r
799                                                           vV0,\r
800                                                           kTRUE,  // check if this is right\r
801                                                           vtx->UsesTrack(esdV0Pos->GetID()),\r
802                                                           AliAODTrack::kSecondary,\r
803                                                           selectInfo);\r
804             aodTrack->SetTPCClusterMap(esdV0Pos->GetTPCClusterMap());\r
805             aodTrack->SetTPCSharedMap (esdV0Pos->GetTPCSharedMap());\r
806             aodTrack->SetChi2perNDF(Chi2perNDF(esdV0Pos));\r
807             aodTrackRefs->AddAt(aodTrack,posFromV0);\r
808             //      if (fDebug > 0) printf("-------------------Bo: pos track from original pt %.3f \n",aodTrack->Pt());\r
809             if (esdV0Pos->GetSign() > 0) nPosTracks++;\r
810             aodTrack->ConvertAliPIDtoAODPID();\r
811             aodTrack->SetFlags(esdV0Pos->GetStatus());\r
812             SetAODPID(esdV0Pos,aodTrack,detpid,timezero,esd->GetMagneticField());\r
813         }\r
814         else {\r
815             aodTrack = dynamic_cast<AliAODTrack*>(aodTrackRefs->At(posFromV0));\r
816             //      if (fDebug > 0) printf("-------------------Bo pos track from refArray pt %.3f \n",aodTrack->Pt());\r
817         }\r
818         vV0->AddDaughter(aodTrack);\r
819     \r
820         // Add the negative tracks from the V0\r
821         \r
822         esdV0Neg->GetPxPyPz(momNeg);\r
823         esdV0Neg->GetXYZ(pos);\r
824         esdV0Neg->GetCovarianceXYZPxPyPz(covTr);\r
825         esdV0Neg->GetESDpid(pid);\r
826         \r
827         if (!usedTrack[negFromV0]) {\r
828             usedTrack[negFromV0] = kTRUE;\r
829             UInt_t selectInfo = 0;\r
830             if (fTrackFilter) selectInfo = fTrackFilter->IsSelected(esdV0Neg);\r
831             if(mcH)mcH->SelectParticle(esdV0Neg->GetLabel());\r
832             aodTrack = new(tracks[jTracks++]) AliAODTrack(esdV0Neg->GetID(),\r
833                                                           esdV0Neg->GetLabel(),\r
834                                                           momNeg,\r
835                                                           kTRUE,\r
836                                                           pos,\r
837                                                           kFALSE,\r
838                                                           covTr, \r
839                                                           (Short_t)esdV0Neg->GetSign(),\r
840                                                           esdV0Neg->GetITSClusterMap(), \r
841                                                           pid,\r
842                                                           vV0,\r
843                                                           kTRUE,  // check if this is right\r
844                                                           vtx->UsesTrack(esdV0Neg->GetID()),\r
845                                                           AliAODTrack::kSecondary,\r
846                                                           selectInfo);\r
847             aodTrack->SetTPCClusterMap(esdV0Neg->GetTPCClusterMap());\r
848             aodTrack->SetTPCSharedMap (esdV0Neg->GetTPCSharedMap());\r
849             aodTrack->SetChi2perNDF(Chi2perNDF(esdV0Neg));\r
850             \r
851             aodTrackRefs->AddAt(aodTrack,negFromV0);\r
852             //      if (fDebug > 0) printf("-------------------Bo: neg track from original pt %.3f \n",aodTrack->Pt());\r
853             if (esdV0Neg->GetSign() > 0) nPosTracks++;\r
854             aodTrack->ConvertAliPIDtoAODPID();\r
855             aodTrack->SetFlags(esdV0Neg->GetStatus());\r
856             SetAODPID(esdV0Neg,aodTrack,detpid,timezero,esd->GetMagneticField());\r
857         }\r
858         else {\r
859             aodTrack = dynamic_cast<AliAODTrack*>(aodTrackRefs->At(negFromV0));\r
860             //      if (fDebug > 0) printf("-------------------Bo neg track from refArray pt %.3f \n",aodTrack->Pt());\r
861         }\r
862         vV0->AddDaughter(aodTrack);\r
863 \r
864 \r
865         // Add the V0 the V0 array as well\r
866         \r
867         Double_t  dcaV0Daughters      = v0->GetDcaV0Daughters();\r
868         Double_t  dcaV0ToPrimVertex   = v0->GetD(esd->GetPrimaryVertex()->GetX(),\r
869                                                  esd->GetPrimaryVertex()->GetY(),\r
870                                                  esd->GetPrimaryVertex()->GetZ());\r
871         v0->GetPPxPyPz(momPosAtV0vtx[0],momPosAtV0vtx[1],momPosAtV0vtx[2]); \r
872         v0->GetNPxPyPz(momNegAtV0vtx[0],momNegAtV0vtx[1],momNegAtV0vtx[2]); \r
873         \r
874         Double_t dcaDaughterToPrimVertex[2] = { 999., 999.}; // ..[0] = DCA in (x,y) for Pos and ..[1] = Neg\r
875         dcaDaughterToPrimVertex[0] = TMath::Abs(esdV0Pos->GetD(  esd->GetPrimaryVertex()->GetX(),\r
876                                                                  esd->GetPrimaryVertex()->GetY(),\r
877                                                                         esd->GetMagneticField()) );\r
878         dcaDaughterToPrimVertex[1] = TMath::Abs(esdV0Neg->GetD(  esd->GetPrimaryVertex()->GetX(),\r
879                                                                  esd->GetPrimaryVertex()->GetY(),\r
880                                                                         esd->GetMagneticField()) );\r
881         \r
882         aodV0 = new(v0s[jV0s++]) AliAODv0(vV0, \r
883                                         dcaV0Daughters,\r
884                                         dcaV0ToPrimVertex,\r
885                                         momPosAtV0vtx,\r
886                                         momNegAtV0vtx,\r
887                                         dcaDaughterToPrimVertex);\r
888 \r
889         // set the aod v0 on-the-fly status\r
890         aodV0->SetOnFlyStatus(v0->GetOnFlyStatus());\r
891     }//End of loop on V0s \r
892 \r
893     v0s.Expand(jV0s);    \r
894 \r
895     if (fDebug > 0)   printf("   NAODCascades=%d / NAODV0s=%d\n", jCascades, jV0s);\r
896     // end of V0 parts\r
897 \r
898 \r
899     // Kinks: it is a big mess the access to the information in the kinks\r
900     // The loop is on the tracks in order to find the mother and daugther of each kink\r
901     \r
902     \r
903     for (Int_t iTrack=0; iTrack<nTracks; ++iTrack) {\r
904         \r
905         AliESDtrack * esdTrack = esd->GetTrack(iTrack);\r
906         \r
907         Int_t ikink = esdTrack->GetKinkIndex(0);\r
908         \r
909         if (ikink && nKinks) {\r
910             // Negative kink index: mother, positive: daughter\r
911             \r
912             // Search for the second track of the kink\r
913             \r
914             for (Int_t jTrack = iTrack+1; jTrack<nTracks; ++jTrack) {\r
915                 \r
916                 AliESDtrack * esdTrack1 = esd->GetTrack(jTrack);\r
917                 \r
918                 Int_t jkink = esdTrack1->GetKinkIndex(0);\r
919                 \r
920                 if ( TMath::Abs(ikink)==TMath::Abs(jkink) ) {\r
921                     \r
922                     // The two tracks are from the same kink\r
923                     \r
924                     if (usedKink[TMath::Abs(ikink)-1]) continue; // skip used kinks\r
925                     \r
926                     Int_t imother = -1;\r
927                     Int_t idaughter = -1;\r
928                     \r
929                     if (ikink<0 && jkink>0) {\r
930                         \r
931                         imother = iTrack;\r
932                         idaughter = jTrack;\r
933                     }\r
934                     else if (ikink>0 && jkink<0) {\r
935                         \r
936                         imother = jTrack;\r
937                         idaughter = iTrack;\r
938                     }\r
939                     else {\r
940 //                      cerr << "Error: Wrong combination of kink indexes: "\r
941 //                           << ikink << " " << jkink << endl;\r
942                         continue;\r
943                     }\r
944                     \r
945                     // Add the mother track if it passed primary track selection cuts\r
946                     \r
947                     AliAODTrack * mother = NULL;\r
948                     \r
949                     UInt_t selectInfo = 0;\r
950                     if (fTrackFilter) {\r
951                         selectInfo = fTrackFilter->IsSelected(esd->GetTrack(imother));\r
952                         if (!selectInfo) continue;\r
953                     }\r
954                     \r
955                     if (!usedTrack[imother]) {\r
956                         \r
957                         usedTrack[imother] = kTRUE;\r
958                         \r
959                         AliESDtrack *esdTrackM = esd->GetTrack(imother);\r
960                         esdTrackM->GetPxPyPz(p);\r
961                         esdTrackM->GetXYZ(pos);\r
962                         esdTrackM->GetCovarianceXYZPxPyPz(covTr);\r
963                         esdTrackM->GetESDpid(pid);\r
964                         if(mcH)mcH->SelectParticle(esdTrackM->GetLabel());\r
965                         mother = \r
966                             new(tracks[jTracks++]) AliAODTrack(esdTrackM->GetID(),\r
967                                                                esdTrackM->GetLabel(),\r
968                                                                p,\r
969                                                                kTRUE,\r
970                                                                pos,\r
971                                                                kFALSE,\r
972                                                                covTr, \r
973                                                                (Short_t)esdTrackM->GetSign(),\r
974                                                                esdTrackM->GetITSClusterMap(), \r
975                                                                pid,\r
976                                                                primary,\r
977                                                                kTRUE, // check if this is right\r
978                                                                vtx->UsesTrack(esdTrack->GetID()),\r
979                                                                AliAODTrack::kPrimary,\r
980                                                                selectInfo);\r
981                         mother->SetTPCClusterMap(esdTrackM->GetTPCClusterMap());\r
982                         mother->SetTPCSharedMap (esdTrackM->GetTPCSharedMap());\r
983                         mother->SetChi2perNDF(Chi2perNDF(esdTrackM));\r
984 \r
985                         aodTrackRefs->AddAt(mother, imother);\r
986                         \r
987                         if (esdTrackM->GetSign() > 0) nPosTracks++;\r
988                         mother->SetFlags(esdTrackM->GetStatus());\r
989                         mother->ConvertAliPIDtoAODPID();\r
990                         primary->AddDaughter(mother);\r
991                         mother->ConvertAliPIDtoAODPID();\r
992                         SetAODPID(esdTrackM,mother,detpid,timezero,esd->GetMagneticField());\r
993                     }\r
994                     else {\r
995 //                      cerr << "Error: event " << esd->GetEventNumberInFile() << " kink " << TMath::Abs(ikink)-1\r
996 //                           << " track " << imother << " has already been used!" << endl;\r
997                   }\r
998                     \r
999                     // Add the kink vertex\r
1000                     AliESDkink * kink = esd->GetKink(TMath::Abs(ikink)-1);\r
1001                     \r
1002                     AliAODVertex * vkink = \r
1003                         new(vertices[jVertices++]) AliAODVertex(kink->GetPosition(),\r
1004                                                                 NULL,\r
1005                                                                 0.,\r
1006                                                                 mother,\r
1007                                                                 esdTrack->GetID(),  // This is the track ID of the mother's track!\r
1008                                                                 AliAODVertex::kKink);\r
1009                     // Add the daughter track\r
1010                   \r
1011                     AliAODTrack * daughter = NULL;\r
1012                     \r
1013                     if (!usedTrack[idaughter]) {\r
1014                         \r
1015                         usedTrack[idaughter] = kTRUE;\r
1016                         \r
1017                         AliESDtrack *esdTrackD = esd->GetTrack(idaughter);\r
1018                         esdTrackD->GetPxPyPz(p);\r
1019                         esdTrackD->GetXYZ(pos);\r
1020                         esdTrackD->GetCovarianceXYZPxPyPz(covTr);\r
1021                         esdTrackD->GetESDpid(pid);\r
1022                         selectInfo = 0;\r
1023                         if (fTrackFilter) selectInfo = fTrackFilter->IsSelected(esdTrackD);\r
1024                         if(mcH)mcH->SelectParticle(esdTrackD->GetLabel());\r
1025                         daughter = \r
1026                             new(tracks[jTracks++]) AliAODTrack(esdTrackD->GetID(),\r
1027                                                                esdTrackD->GetLabel(),\r
1028                                                                p,\r
1029                                                                kTRUE,\r
1030                                                                pos,\r
1031                                                                kFALSE,\r
1032                                                                covTr, \r
1033                                                                (Short_t)esdTrackD->GetSign(),\r
1034                                                                esdTrackD->GetITSClusterMap(), \r
1035                                                                pid,\r
1036                                                                vkink,\r
1037                                                                kTRUE, // check if this is right\r
1038                                                                vtx->UsesTrack(esdTrack->GetID()),\r
1039                                                                AliAODTrack::kSecondary,\r
1040                                                                selectInfo);\r
1041                         daughter->SetTPCClusterMap(esdTrackD->GetTPCClusterMap());\r
1042                         daughter->SetTPCSharedMap (esdTrackD->GetTPCSharedMap());\r
1043                         aodTrackRefs->AddAt(daughter, idaughter);\r
1044                         \r
1045                         if (esdTrackD->GetSign() > 0) nPosTracks++;\r
1046                         daughter->SetFlags(esdTrackD->GetStatus());\r
1047                         daughter->ConvertAliPIDtoAODPID();\r
1048                         vkink->AddDaughter(daughter);\r
1049                         daughter->ConvertAliPIDtoAODPID();\r
1050                        SetAODPID(esdTrackD,daughter,detpid,timezero,esd->GetMagneticField());\r
1051                     }\r
1052                     else {\r
1053 //                      cerr << "Error: event " << esd->GetEventNumberInFile() << " kink " << TMath::Abs(ikink)-1\r
1054 //                           << " track " << idaughter << " has already been used!" << endl;\r
1055                     }\r
1056                 }\r
1057             }\r
1058         }      \r
1059     }\r
1060     \r
1061   \r
1062     // Tracks (primary and orphan)\r
1063 \r
1064     if (fDebug > 0) printf("NUMBER OF ESD TRACKS %5d\n", nTracks);\r
1065     \r
1066     for (Int_t nTrack = 0; nTrack < nTracks; ++nTrack) {\r
1067         \r
1068         \r
1069         if (usedTrack[nTrack]) continue;\r
1070 \r
1071         AliESDtrack *esdTrack = esd->GetTrack(nTrack);\r
1072         UInt_t selectInfo = 0;\r
1073         //\r
1074         // Track selection\r
1075         if (fTrackFilter) {\r
1076             selectInfo = fTrackFilter->IsSelected(esdTrack);\r
1077             if (!selectInfo && !vtx->UsesTrack(esdTrack->GetID())) continue;\r
1078         }\r
1079         \r
1080         //\r
1081         esdTrack->GetPxPyPz(p);\r
1082         esdTrack->GetXYZ(pos);\r
1083         esdTrack->GetCovarianceXYZPxPyPz(covTr);\r
1084         esdTrack->GetESDpid(pid);\r
1085         if(mcH)mcH->SelectParticle(esdTrack->GetLabel());\r
1086         primary->AddDaughter(aodTrack =\r
1087                              new(tracks[jTracks++]) AliAODTrack(esdTrack->GetID(),\r
1088                                                                 esdTrack->GetLabel(),\r
1089                                                                 p,\r
1090                                                                 kTRUE,\r
1091                                                                 pos,\r
1092                                                                 kFALSE,\r
1093                                                                 covTr, \r
1094                                                                 (Short_t)esdTrack->GetSign(),\r
1095                                                                 esdTrack->GetITSClusterMap(), \r
1096                                                                 pid,\r
1097                                                                 primary,\r
1098                                                                 kTRUE, // check if this is right\r
1099                                                                 vtx->UsesTrack(esdTrack->GetID()),\r
1100                                                                 AliAODTrack::kPrimary, \r
1101                                                                 selectInfo)\r
1102                              );\r
1103         aodTrack->SetTPCClusterMap(esdTrack->GetTPCClusterMap());\r
1104         aodTrack->SetTPCSharedMap (esdTrack->GetTPCSharedMap());\r
1105         aodTrack->SetChi2perNDF(Chi2perNDF(esdTrack));\r
1106 \r
1107         aodTrackRefs->AddAt(aodTrack, nTrack);\r
1108 \r
1109         \r
1110         if (esdTrack->GetSign() > 0) nPosTracks++;\r
1111         aodTrack->SetFlags(esdTrack->GetStatus());\r
1112         aodTrack->ConvertAliPIDtoAODPID();\r
1113         SetAODPID(esdTrack,aodTrack,detpid,timezero,esd->GetMagneticField());\r
1114     } // end of loop on tracks\r
1115     \r
1116     // Update number of AOD tracks in header at the end of track loop (M.G.)\r
1117     header->SetRefMultiplicity(jTracks);\r
1118     header->SetRefMultiplicityPos(nPosTracks);\r
1119     header->SetRefMultiplicityNeg(jTracks - nPosTracks);\r
1120     if (fDebug > 0) \r
1121       printf("   NAODTRACKS=%d  NPOS=%d  NNEG=%d\n", jTracks, nPosTracks, jTracks - nPosTracks);\r
1122     // Do not shrink the array of tracks - other filters may add to it (M.G)\r
1123     //   tracks.Expand(jTracks); // remove 'empty slots' due to unwritten tracks\r
1124   \r
1125     // Access to the AOD container of PMD clusters\r
1126     TClonesArray &pmdClusters = *(AODEvent()->GetPmdClusters());\r
1127     Int_t jPmdClusters=0;\r
1128   \r
1129     for (Int_t iPmd = 0; iPmd < nPmdClus; ++iPmd) {\r
1130       // file pmd clusters, to be revised!\r
1131       AliESDPmdTrack *pmdTrack = esd->GetPmdTrack(iPmd);\r
1132       Int_t nLabel = 0;\r
1133       Int_t *label = 0x0;\r
1134       Double_t posPmd[3] = { pmdTrack->GetClusterX(), pmdTrack->GetClusterY(), pmdTrack->GetClusterZ()};\r
1135       Double_t pidPmd[13] = { 0.}; // to be revised!\r
1136       // type not set!\r
1137       // assoc cluster not set\r
1138       new(pmdClusters[jPmdClusters++]) AliAODPmdCluster(iPmd, nLabel, label, pmdTrack->GetClusterADC(), posPmd, pidPmd);\r
1139     }\r
1140 \r
1141     // Access to the AOD container of clusters\r
1142     TClonesArray &caloClusters = *(AODEvent()->GetCaloClusters());\r
1143     Int_t jClusters=0;\r
1144  \r
1145     for (Int_t iClust=0; iClust<nCaloClus; ++iClust) {\r
1146 \r
1147       AliESDCaloCluster * cluster = esd->GetCaloCluster(iClust);\r
1148 \r
1149       Int_t  id        = cluster->GetID();\r
1150       Int_t  nLabel    = cluster->GetNLabels();\r
1151       Int_t *labels    = cluster->GetLabels();\r
1152       if(labels){ \r
1153                   for(int i = 0;i < nLabel;++i){\r
1154                           if(mcH)mcH->SelectParticle(labels[i]);\r
1155                   }\r
1156           }             \r
1157 \r
1158       Float_t energy = cluster->E();\r
1159       cluster->GetPosition(posF);\r
1160 \r
1161       AliAODCaloCluster *caloCluster = new(caloClusters[jClusters++]) AliAODCaloCluster(id,\r
1162                                                                                         nLabel,\r
1163                                                                                         labels,\r
1164                                                                                         energy,\r
1165                                                                                         posF,\r
1166                                                                                         NULL,\r
1167                                                                                         cluster->GetType(),0);\r
1168       \r
1169       caloCluster->SetCaloCluster(cluster->GetDistanceToBadChannel(),\r
1170                                   cluster->GetDispersion(),\r
1171                                   cluster->GetM20(), cluster->GetM02(),\r
1172                                   cluster->GetEmcCpvDistance(),  \r
1173                                   cluster->GetNExMax(),cluster->GetTOF()) ;\r
1174 \r
1175       caloCluster->SetPIDFromESD(cluster->GetPID());\r
1176       caloCluster->SetNCells(cluster->GetNCells());\r
1177       caloCluster->SetCellsAbsId(cluster->GetCellsAbsId());\r
1178       caloCluster->SetCellsAmplitudeFraction(cluster->GetCellsAmplitudeFraction());\r
1179 \r
1180       TArrayI* matchedT =       cluster->GetTracksMatched();\r
1181       if (nTracks>0 && matchedT && cluster->GetTrackMatchedIndex() >= 0) {      \r
1182         for (Int_t im = 0; im < matchedT->GetSize(); im++) {\r
1183             Int_t iESDtrack = matchedT->At(im);;\r
1184             if (aodTrackRefs->At(iESDtrack) != 0) {\r
1185                 caloCluster->AddTrackMatched((AliAODTrack*)aodTrackRefs->At(iESDtrack));\r
1186             }\r
1187         }\r
1188       }\r
1189       \r
1190     } \r
1191     caloClusters.Expand(jClusters); // resize TObjArray to 'remove' slots for pseudo clusters    \r
1192     // end of loop on calo clusters\r
1193 \r
1194     // fill EMCAL cell info\r
1195     if (esd->GetEMCALCells()) { // protection against missing ESD information\r
1196       AliESDCaloCells &esdEMcells = *(esd->GetEMCALCells());\r
1197       Int_t nEMcell = esdEMcells.GetNumberOfCells() ;\r
1198       \r
1199       AliAODCaloCells &aodEMcells = *(AODEvent()->GetEMCALCells());\r
1200       aodEMcells.CreateContainer(nEMcell);\r
1201       aodEMcells.SetType(AliAODCaloCells::kEMCALCell);\r
1202       for (Int_t iCell = 0; iCell < nEMcell; iCell++) {      \r
1203         aodEMcells.SetCell(iCell,esdEMcells.GetCellNumber(iCell),esdEMcells.GetAmplitude(iCell));\r
1204       }\r
1205       aodEMcells.Sort();\r
1206     }\r
1207 \r
1208     // fill PHOS cell info\r
1209     if (esd->GetPHOSCells()) { // protection against missing ESD information\r
1210       AliESDCaloCells &esdPHcells = *(esd->GetPHOSCells());\r
1211       Int_t nPHcell = esdPHcells.GetNumberOfCells() ;\r
1212       \r
1213       AliAODCaloCells &aodPHcells = *(AODEvent()->GetPHOSCells());\r
1214       aodPHcells.CreateContainer(nPHcell);\r
1215       aodPHcells.SetType(AliAODCaloCells::kPHOSCell);\r
1216       for (Int_t iCell = 0; iCell < nPHcell; iCell++) {      \r
1217         aodPHcells.SetCell(iCell,esdPHcells.GetCellNumber(iCell),esdPHcells.GetAmplitude(iCell));\r
1218       }\r
1219       aodPHcells.Sort();\r
1220     }\r
1221 \r
1222     // tracklets    \r
1223     AliAODTracklets &SPDTracklets = *(AODEvent()->GetTracklets());\r
1224     const AliMultiplicity *mult = esd->GetMultiplicity();\r
1225     if (mult) {\r
1226       if (mult->GetNumberOfTracklets()>0) {\r
1227         SPDTracklets.CreateContainer(mult->GetNumberOfTracklets());\r
1228 \r
1229         for (Int_t n=0; n<mult->GetNumberOfTracklets(); n++) {\r
1230           if(mcH){\r
1231             mcH->SelectParticle(mult->GetLabel(n, 0));\r
1232             mcH->SelectParticle(mult->GetLabel(n, 1));\r
1233           }\r
1234           SPDTracklets.SetTracklet(n, mult->GetTheta(n), mult->GetPhi(n), mult->GetDeltaPhi(n), mult->GetLabel(n, 0),mult->GetLabel(n, 1));\r
1235         }\r
1236       }\r
1237     } else {\r
1238       //Printf("ERROR: AliMultiplicity could not be retrieved from ESD");\r
1239     }\r
1240 \r
1241     delete [] usedKink;\r
1242     delete [] usedV0;\r
1243     delete [] usedTrack;    \r
1244     delete    aodV0Refs;\r
1245     delete    aodV0VtxRefs;\r
1246     delete    aodTrackRefs;\r
1247 \r
1248     return;\r
1249 }\r
1250 \r
1251 \r
1252 void AliAnalysisTaskESDfilter::SetAODPID(AliESDtrack *esdtrack, AliAODTrack *aodtrack, AliAODPid *detpid, Double_t timezero, Double_t bfield)\r
1253 {\r
1254   //\r
1255   // Setter for the raw PID detector signals\r
1256   //\r
1257 \r
1258   // Save PID object for candidate electrons\r
1259     Bool_t pidSave = kFALSE;\r
1260     if (fTrackFilter) {\r
1261         Bool_t selectInfo = fTrackFilter->IsSelected((char*) "Electrons");\r
1262         if (selectInfo)  pidSave = kTRUE;\r
1263     }\r
1264 \r
1265 \r
1266     // Tracks passing pt cut \r
1267     if(esdtrack->Pt()>fHighPthreshold) {\r
1268         pidSave = kTRUE;\r
1269     } else {\r
1270         if(fPtshape){\r
1271             if(esdtrack->Pt()> fPtshape->GetXmin()){\r
1272                 Double_t y = fPtshape->Eval(esdtrack->Pt())/fPtshape->Eval(fHighPthreshold);\r
1273                 if(gRandom->Rndm(0)<1./y){\r
1274                     pidSave = kTRUE;\r
1275                 }//end rndm\r
1276             }//end if p < pmin\r
1277         }//end if p function\r
1278     }// end else\r
1279 \r
1280     if (pidSave) {\r
1281       if(!aodtrack->GetDetPid()){// prevent memory leak when calling SetAODPID twice for the same track\r
1282         detpid = new AliAODPid();\r
1283         SetDetectorRawSignals(detpid,esdtrack,timezero, bfield);\r
1284         aodtrack->SetDetPID(detpid);\r
1285       }\r
1286     }\r
1287 }\r
1288 \r
1289 void AliAnalysisTaskESDfilter::SetDetectorRawSignals(AliAODPid *aodpid, AliESDtrack *track, Double_t timezero, Double_t bfield)\r
1290 {\r
1291 //\r
1292 //assignment of the detector signals (AliXXXesdPID inspired)\r
1293 //\r
1294  if(!track){\r
1295  AliInfo("no ESD track found. .....exiting");\r
1296  return;\r
1297  }\r
1298  // TPC momentum\r
1299  const AliExternalTrackParam *in=track->GetInnerParam();\r
1300  if (in) {\r
1301    aodpid->SetTPCmomentum(in->GetP());\r
1302  }else{\r
1303    aodpid->SetTPCmomentum(-1.);\r
1304  }\r
1305 \r
1306 \r
1307  aodpid->SetITSsignal(track->GetITSsignal());\r
1308  aodpid->SetTPCsignal(track->GetTPCsignal());\r
1309 \r
1310  //n TRD planes = 6\r
1311  Int_t nslices = track->GetNumberOfTRDslices()*6;\r
1312  Double_t *trdslices = new Double_t[nslices];\r
1313  for(Int_t iSl =0; iSl < track->GetNumberOfTRDslices(); iSl++) {\r
1314    for(Int_t iPl =0; iPl<6; iPl++) trdslices[iPl*track->GetNumberOfTRDslices()+iSl] = track->GetTRDslice(iPl,iSl);\r
1315  }\r
1316  \r
1317 //TRD momentum\r
1318  for(Int_t iPl=0;iPl<6;iPl++){\r
1319    Double_t trdmom=track->GetTRDmomentum(iPl);\r
1320    aodpid->SetTRDmomentum(iPl,trdmom);\r
1321  }\r
1322 \r
1323  aodpid->SetTRDsignal(track->GetNumberOfTRDslices()*6,trdslices);\r
1324  Double_t times[AliAODPid::kSPECIES]; track->GetIntegratedTimes(times);\r
1325  aodpid->SetIntegratedTimes(times);\r
1326 \r
1327  aodpid->SetTOFsignal(track->GetTOFsignal()-timezero); // to be fixed\r
1328  aodpid->SetHMPIDsignal(track->GetHMPIDsignal());\r
1329 \r
1330  //Extrapolate track to EMCAL surface for AOD-level track-cluster matching\r
1331  Double_t emcpos[3] = {0.,0.,0.};\r
1332  Double_t emcmom[3] = {0.,0.,0.};\r
1333  aodpid->SetEMCALPosition(emcpos);\r
1334  aodpid->SetEMCALMomentum(emcmom);\r
1335 \r
1336  AliExternalTrackParam *outerparam = (AliExternalTrackParam*)track->GetOuterParam();\r
1337  if(!outerparam) return;\r
1338 \r
1339  //To be replaced by call to AliEMCALGeoUtils when the class becomes available\r
1340  Double_t radius = 441.0; //[cm] EMCAL radius +13cm\r
1341 \r
1342  Bool_t okpos = outerparam->GetXYZAt(radius,bfield,emcpos);\r
1343  Bool_t okmom = outerparam->GetPxPyPzAt(radius,bfield,emcmom);\r
1344  if(!(okpos && okmom)) return;\r
1345 \r
1346  aodpid->SetEMCALPosition(emcpos);\r
1347  aodpid->SetEMCALMomentum(emcmom);\r
1348 \r
1349 }\r
1350 \r
1351 Double_t  AliAnalysisTaskESDfilter::Chi2perNDF(AliESDtrack* track)\r
1352 {\r
1353     // Calculate chi2 per ndf for track\r
1354     Int_t  nClustersTPC = track->GetTPCNcls();\r
1355 \r
1356     if ( nClustersTPC > 5) {\r
1357        return (track->GetTPCchi2()/Float_t(nClustersTPC - 5));\r
1358     } else {\r
1359        return (-1.);\r
1360     }\r
1361  }\r
1362 \r
1363 \r
1364 \r
1365 void AliAnalysisTaskESDfilter::Terminate(Option_t */*option*/)\r
1366 {\r
1367 // Terminate analysis\r
1368 //\r
1369     if (fDebug > 1) printf("AnalysisESDfilter: Terminate() \n");\r
1370 }\r
1371 \r
1372 void  AliAnalysisTaskESDfilter::PrintMCInfo(AliStack *pStack,Int_t label){\r
1373   if(!pStack)return;\r
1374   label = TMath::Abs(label);\r
1375   TParticle *part = pStack->Particle(label);\r
1376   Printf("########################");\r
1377   Printf("%s:%d %d UniqueID %d PDG %d P %3.3f",(char*)__FILE__,__LINE__,label,part->GetUniqueID(),part->GetPdgCode(),part->P());\r
1378   part->Print();\r
1379   TParticle* mother = part;\r
1380   Int_t imo = part->GetFirstMother();\r
1381   Int_t nprim = pStack->GetNprimary();\r
1382   //  while((imo >= nprim) && (mother->GetUniqueID() == 4)) {\r
1383   while((imo >= nprim)) {\r
1384     mother =  pStack->Particle(imo);\r
1385     Printf("Mother %s:%d Label %d UniqueID %d PDG %d P %3.3f",(char*)__FILE__,__LINE__,imo,mother->GetUniqueID(),mother->GetPdgCode(),mother->P());\r
1386     mother->Print();\r
1387     imo =  mother->GetFirstMother();\r
1388   }\r
1389   Printf("########################");\r
1390 }\r