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1 | /************************************************************************** |
2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * |
3 | * * |
4 | * Author: The ALICE Off-line Project. * |
5 | * Contributors are mentioned in the code where appropriate. * |
6 | * * |
7 | * Permission to use, copy, modify and distribute this software and its * |
8 | * documentation strictly for non-commercial purposes is hereby granted * |
9 | * without fee, provided that the above copyright notice appears in all * |
10 | * copies and that both the copyright notice and this permission notice * |
11 | * appear in the supporting documentation. The authors make no claims * |
12 | * about the suitability of this software for any purpose. It is * |
13 | * provided "as is" without express or implied warranty. * |
14 | **************************************************************************/ |
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15 | //. |
16 | // HMPID base class to reconstruct an event |
17 | //. |
18 | //. |
19 | //. |
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20 | #include "AliHMPIDReconstructor.h" //class header |
21 | #include "AliHMPID.h" //Reconstruct() |
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22 | #include "AliHMPIDCluster.h" //Dig2Clu() |
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23 | #include "AliHMPIDPid.h" //FillEsd() |
24 | #include "AliHMPIDParam.h" //FillEsd() |
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25 | #include <AliCDBEntry.h> //ctor |
26 | #include <AliCDBManager.h> //ctor |
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27 | #include <AliESDEvent.h> //FillEsd() |
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28 | #include <AliRawReader.h> //Reconstruct() for raw digits |
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29 | #include <AliLog.h> // |
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30 | #include "AliHMPIDRawStream.h" //ConvertDigits() |
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31 | #include "AliHMPIDRecoParamV1.h" //ctor |
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32 | |
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33 | ClassImp(AliHMPIDReconstructor) |
34 | |
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35 | Int_t AliHMPIDReconstructor::fgStreamLevel = 0; // stream (debug) level |
36 | |
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37 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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38 | AliHMPIDReconstructor::AliHMPIDReconstructor():AliReconstructor(),fDaqSig(0),fDig(0),fClu(0) |
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39 | { |
40 | // |
41 | //ctor |
42 | // |
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43 | AliHMPIDParam::Instance(); //geometry loaded for reconstruction |
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44 | |
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45 | fClu=new TObjArray(AliHMPIDParam::kMaxCh+1); fClu->SetOwner(kTRUE); |
46 | fDig=new TObjArray(AliHMPIDParam::kMaxCh+1); fDig->SetOwner(kTRUE); |
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47 | |
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48 | for(int i=AliHMPIDParam::kMinCh;i<=AliHMPIDParam::kMaxCh;i++){ |
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49 | fDig->AddAt(new TClonesArray("AliHMPIDDigit",24000),i); |
50 | TClonesArray *pClus = new TClonesArray("AliHMPIDCluster",24000); |
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51 | pClus->SetUniqueID(i); |
52 | fClu->AddAt(pClus,i); |
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53 | } |
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54 | |
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55 | AliCDBEntry *pDaqSigEnt =AliCDBManager::Instance()->Get("HMPID/Calib/DaqSig"); //contains TObjArray of TObjArray 14 TMatrixF sigmas values for pads |
56 | if(!pDaqSigEnt) AliFatal("No pedestals from DAQ!"); |
57 | fDaqSig = (TObjArray*)pDaqSigEnt->GetObject(); |
58 | for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++){ //chambers loop |
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59 | AliDebug(1,Form("DaqSigCut successfully loaded for chamber %i -> %i ",iCh,(Int_t)fDaqSig->At(iCh)->GetUniqueID())); |
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60 | } |
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61 | }//AliHMPIDReconstructor |
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62 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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63 | void AliHMPIDReconstructor::Dig2Clu(TObjArray *pDigAll,TObjArray *pCluAll,Int_t *pUserCut,Bool_t isTryUnfold) |
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64 | { |
65 | // Finds all clusters for a given digits list provided not empty. Currently digits list is a list of all digits for a single chamber. |
66 | // Puts all found clusters in separate lists, one per clusters. |
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67 | // Arguments: pDigAll - list of digits for all chambers |
68 | // pCluAll - list of clusters for all chambers |
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69 | // isTryUnfold - flag to choose between CoG and Mathieson fitting |
70 | // Returns: none |
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71 | TMatrixF padMap(AliHMPIDParam::kMinPx,AliHMPIDParam::kMaxPcx,AliHMPIDParam::kMinPy,AliHMPIDParam::kMaxPcy); //pads map for single chamber 0..159 x 0..143 |
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72 | |
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73 | for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++){ //chambers loop |
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74 | TClonesArray *pDigCur=(TClonesArray*)pDigAll->At(iCh); //get list of digits for current chamber |
75 | if(pDigCur->GetEntriesFast()==0) continue; //no digits for current chamber |
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76 | |
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77 | padMap=(Float_t)-1; //reset map to -1 (means no digit for this pad) |
78 | TClonesArray *pCluCur=(TClonesArray*)pCluAll->At(iCh); //get list of clusters for current chamber |
79 | |
80 | for(Int_t iDig=0;iDig<pDigCur->GetEntriesFast();iDig++){ //digits loop to fill pads map |
81 | AliHMPIDDigit *pDig= (AliHMPIDDigit*)pDigCur->At(iDig); //get current digit |
82 | padMap( pDig->PadChX(), pDig->PadChY() )=iDig; //fill the map, (padx,pady) cell takes digit index |
83 | }//digits loop to fill digits map |
84 | |
85 | AliHMPIDCluster clu; //tmp cluster to be used as current |
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86 | for(Int_t iDig=0;iDig<pDigCur->GetEntriesFast();iDig++){ //digits loop for current chamber |
87 | AliHMPIDDigit *pDig=(AliHMPIDDigit*)pDigCur->At(iDig); //take current digit |
88 | if(!(pDig=UseDig(pDig->PadChX(),pDig->PadChY(),pDigCur,&padMap))) continue; //this digit is already taken in FormClu(), go after next digit |
89 | FormClu(&clu,pDig,pDigCur,&padMap); //form cluster starting from this digit by recursion |
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90 | clu.Solve(pCluCur,pUserCut,isTryUnfold); //solve this cluster and add all unfolded clusters to provided list |
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91 | clu.Reset(); //empty current cluster |
92 | }//digits loop for current chamber |
93 | }//chambers loop |
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94 | }//Dig2Clu() |
95 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
96 | void AliHMPIDReconstructor::FormClu(AliHMPIDCluster *pClu,AliHMPIDDigit *pDig,TClonesArray *pDigLst,TMatrixF *pDigMap) |
97 | { |
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98 | // Forms the initial cluster as a combination of all adjascent digits. Starts from the given digit then calls itself recursevly for all neighbours. |
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99 | // Arguments: pClu - pointer to cluster being formed |
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100 | // Returns: none |
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101 | pClu->DigAdd(pDig);//take this digit in cluster |
102 | |
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103 | Int_t cnt=0,cx[4],cy[4]; |
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104 | |
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105 | if(pDig->PadPcX() != AliHMPIDParam::kMinPx){cx[cnt]=pDig->PadChX()-1; cy[cnt]=pDig->PadChY() ;cnt++;} //left |
106 | if(pDig->PadPcX() != AliHMPIDParam::kMaxPx){cx[cnt]=pDig->PadChX()+1; cy[cnt]=pDig->PadChY() ;cnt++;} //right |
107 | if(pDig->PadPcY() != AliHMPIDParam::kMinPy){cx[cnt]=pDig->PadChX() ; cy[cnt]=pDig->PadChY()-1;cnt++;} //down |
108 | if(pDig->PadPcY() != AliHMPIDParam::kMaxPy){cx[cnt]=pDig->PadChX() ; cy[cnt]=pDig->PadChY()+1;cnt++;} //up |
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109 | |
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110 | for (Int_t i=0;i<cnt;i++){//neighbours loop |
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111 | if((pDig=UseDig(cx[i],cy[i],pDigLst,pDigMap))) FormClu(pClu,pDig,pDigLst,pDigMap); //check if this neighbour pad fired and mark it as taken |
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112 | }//neighbours loop |
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113 | }//FormClu() |
114 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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115 | void AliHMPIDReconstructor::Reconstruct(TTree *pDigTree,TTree *pCluTree)const |
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116 | { |
117 | //Invoked by AliReconstruction to convert digits to clusters i.e. reconstruct simulated data |
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118 | //Arguments: pDigTree - pointer to Digit tree |
119 | // pCluTree - poitner to Cluster tree |
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120 | // Returns: none |
121 | AliDebug(1,"Start."); |
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122 | for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++) { |
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123 | pCluTree->Branch(Form("HMPID%d",iCh),&((*fClu)[iCh]),7); |
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124 | pDigTree->SetBranchAddress(Form("HMPID%d",iCh),&((*fDig)[iCh])); |
125 | } |
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126 | |
127 | Int_t *pUserCut = new Int_t[7]; |
128 | |
129 | if(AliHMPIDReconstructor::GetRecoParam()) { |
130 | for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++) { |
131 | pUserCut[iCh] = AliHMPIDReconstructor::GetRecoParam()->GetHmpUserCut(iCh); |
132 | AliDebug(1,Form("UserCut successfully loaded (from AliHMPIDRecoParamV1) for chamber %i -> %i ",iCh,pUserCut[iCh])); |
133 | } |
134 | } |
135 | else { |
136 | for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++) { |
137 | pUserCut[iCh] = 4; // minimal requirement for sigma cut |
138 | AliDebug(1,Form("UserCut loaded from defaults for chamber %i -> %i ",iCh,pUserCut[iCh])); |
139 | AliDebug(1,Form("Cannot get AliHMPIDRecoParamV1!")); |
140 | } |
141 | } |
142 | |
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143 | pDigTree->GetEntry(0); |
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144 | Dig2Clu(fDig,fClu,pUserCut); //cluster finder |
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145 | pCluTree->Fill(); //fill tree for current event |
146 | |
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147 | for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++){ |
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148 | fDig->At(iCh)->Clear(); |
149 | fClu->At(iCh)->Clear(); |
150 | } |
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151 | |
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152 | delete [] pUserCut; |
153 | |
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154 | AliDebug(1,"Stop."); |
155 | }//Reconstruct(for simulated digits) |
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156 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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157 | void AliHMPIDReconstructor::ConvertDigits(AliRawReader *pRR,TTree *pDigTree)const |
158 | { |
159 | //Invoked by AliReconstruction to convert raw digits from DDL files to digits |
160 | //Arguments: pRR - ALICE raw reader pointer |
161 | // pDigTree - pointer to Digit tree |
162 | // Returns: none |
163 | AliDebug(1,"Start."); |
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164 | // Int_t digcnt=0; |
165 | |
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166 | Int_t iDigCnt[7]={0,0,0,0,0,0,0}; |
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167 | |
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168 | for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++){ |
169 | pDigTree->Branch(Form("HMPID%d",iCh),&((*fDig)[iCh])); |
170 | } |
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171 | |
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172 | Int_t *pUserCut = new Int_t[7]; |
173 | |
174 | if(AliHMPIDReconstructor::GetRecoParam()) { |
175 | for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++) { |
176 | pUserCut[iCh] = AliHMPIDReconstructor::GetRecoParam()->GetHmpUserCut(iCh); |
177 | AliDebug(1,Form("UserCut successfully loaded (from AliHMPIDRecoParamV1) for chamber %i -> %i ",iCh,pUserCut[iCh])); |
178 | } |
179 | } |
180 | else { |
181 | for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++) { |
182 | pUserCut[iCh] = 4; // minimal requirement for sigma cut |
183 | AliDebug(1,Form("UserCut loaded from defaults for chamber %i -> %i ",iCh,pUserCut[iCh])); |
184 | AliDebug(1,Form("Cannot get AliHMPIDRecoParamV1!")); |
185 | } |
186 | } |
187 | |
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188 | AliHMPIDRawStream stream(pRR); |
189 | |
190 | while(stream.Next()) |
191 | { |
192 | Int_t ch = AliHMPIDParam::DDL2C(stream.GetDDLNumber()); |
193 | for(Int_t iPad=0;iPad<stream.GetNPads();iPad++) { |
194 | AliHMPIDDigit dig(stream.GetPadArray()[iPad],stream.GetChargeArray()[iPad]); |
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195 | if(!IsDigSurvive(pUserCut,&dig)) continue; |
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196 | new((*((TClonesArray*)fDig->At(ch)))[iDigCnt[ch]++]) AliHMPIDDigit(dig); //add this digit to the tmp list |
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197 | } |
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198 | } |
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199 | |
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200 | pDigTree->Fill(); |
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201 | |
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202 | for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++)fDig->At(iCh)->Clear(); |
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203 | |
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204 | delete [] pUserCut; |
205 | |
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206 | AliDebug(1,"Stop."); |
207 | }//Reconstruct digits from raw digits |
208 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
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209 | void AliHMPIDReconstructor::FillESD(TTree */*digitsTree*/, TTree */*clustersTree*/, AliESDEvent *pESD) const |
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210 | { |
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211 | // Fill ESD with all the infos from HMPID |
212 | // Probability vector from AliHMPIDPid |
213 | //... |
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214 | AliHMPIDPid pID; |
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215 | Double_t prob[AliPID::kSPECIES]; |
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216 | |
217 | for(Int_t iTrk=0;iTrk<pESD->GetNumberOfTracks();iTrk++){//ESD tracks loop |
218 | AliESDtrack *pTrk = pESD->GetTrack(iTrk);// get next reconstructed track |
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219 | pID.FindPid(pTrk,AliPID::kSPECIES,prob); |
220 | pTrk->SetHMPIDpid(prob); |
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221 | }//ESD tracks loop |
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222 | }//FillESD() |