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3c6274c1 | 1 | #include "AliHMPIDTracker.h" //class header |
e56b695f | 2 | #include "AliHMPIDtrack.h" //class header |
3c6274c1 | 3 | #include "AliHMPIDCluster.h" //GetTrackPoint(),PropagateBack() |
4 | #include "AliHMPIDParam.h" //GetTrackPoint(),PropagateBack() | |
e56b695f | 5 | #include "AliHMPIDPid.h" //Recon(),reconHTA() |
59d9d4b3 | 6 | #include "AliHMPIDRecon.h" //Recon() |
b4b2d95f | 7 | #include "AliHMPIDRecoParamV1.h" //Recon() |
b8541917 | 8 | #include "AliHMPIDReconstructor.h"//Recon() |
57fcdc2b | 9 | #include "AliHMPIDReconHTA.h" //ReconHTA() |
3e630437 | 10 | #include <AliLog.h> //Recon() |
57fcdc2b | 11 | #include <AliESDEvent.h> //PropagateBack(),Recon() |
c38d443f | 12 | #include <AliESDtrack.h> //Intersect() |
13 | #include <AliTracker.h> | |
d3da6dc4 | 14 | #include <AliRun.h> //GetTrackPoint(),PropagateBack() |
15 | #include <AliTrackPointArray.h> //GetTrackPoint() | |
16 | #include <AliAlignObj.h> //GetTrackPoint() | |
59d9d4b3 | 17 | #include <AliCDBManager.h> //PropageteBack() |
18 | #include <AliCDBEntry.h> //PropageteBack() | |
79439569 | 19 | #include "TTreeStream.h" // debug streamer |
20 | // | |
423554a3 | 21 | // HMPID base class fo tracking |
22 | //. | |
23 | //. | |
24 | //. | |
d3da6dc4 | 25 | ClassImp(AliHMPIDTracker) |
94b1fbfa | 26 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
c61a7285 | 27 | AliHMPIDTracker::AliHMPIDTracker(): |
28 | AliTracker(), | |
79439569 | 29 | fClu(new TObjArray(AliHMPIDParam::kMaxCh+1)), |
30 | fDebugStreamer(0) | |
94b1fbfa | 31 | { |
59d9d4b3 | 32 | // ctor. Create TObjArray of TClonesArray of AliHMPIDCluster |
33 | // | |
34 | // | |
c61a7285 | 35 | fClu->SetOwner(kTRUE); |
ae5a42aa | 36 | for(int i=AliHMPIDParam::kMinCh;i<=AliHMPIDParam::kMaxCh;i++) fClu->AddAt(new TClonesArray("AliHMPIDCluster"),i); |
79439569 | 37 | fDebugStreamer = new TTreeSRedirector("HMPIDdebug.root"); |
38 | ||
59d9d4b3 | 39 | }//ctor |
79439569 | 40 | |
41 | ||
42 | AliHMPIDTracker::~AliHMPIDTracker(){ | |
43 | // | |
44 | // destructor | |
45 | // | |
46 | delete fClu; | |
47 | if (fDebugStreamer) delete fDebugStreamer; | |
48 | } | |
49 | ||
d3da6dc4 | 50 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
51 | Bool_t AliHMPIDTracker::GetTrackPoint(Int_t idx, AliTrackPoint& point) const | |
52 | { | |
53 | // Interface callback methode invoked from AliReconstruction::WriteAlignmentData() to get position of MIP cluster in MARS associated to a current track. | |
54 | // MIP cluster is reffered by index which is stored in AliESDtrack ??????? | |
55 | // Arguments: idx- cluster index which is stored by HMPID in AliESDtrack | |
56 | // point- reference to the object where to store the point | |
57 | // Returns: status of operation if FALSE then AliReconstruction::WriteAlignmentData() do not store this point to array of points for current track. | |
58 | if(idx<0) return kFALSE; //no MIP cluster assigned to this track in PropagateBack() | |
59d9d4b3 | 59 | Int_t iCham=idx/1000000; Int_t iClu=idx%1000000; |
2247c219 | 60 | iClu = iClu%1000; //GetHMPIDcluIdx -> 1e+6*ch + 1e+3*clusize + cluIdx; |
61 | point.SetVolumeID(AliGeomManager::LayerToVolUID(AliGeomManager::kHMPID,iCham));//layer and chamber number | |
94b1fbfa | 62 | TClonesArray *pArr=(TClonesArray*)(*fClu)[iCham]; |
53b3604e | 63 | if(!pArr) return kFALSE; |
94b1fbfa | 64 | AliHMPIDCluster *pClu=(AliHMPIDCluster*)pArr->UncheckedAt(iClu);//get pointer to cluster |
53b3604e | 65 | if(!pClu) return kFALSE; |
2247c219 | 66 | Float_t xyz[3]; |
67 | pClu->GetGlobalXYZ(xyz); | |
68 | Float_t cov[6]; | |
69 | pClu->GetGlobalCov(cov); | |
70 | point.SetXYZ(xyz,cov); | |
d3da6dc4 | 71 | return kTRUE; |
59d9d4b3 | 72 | }//GetTrackPoint() |
73 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ | |
39cd22e6 | 74 | Int_t AliHMPIDTracker::IntTrkCha(AliESDtrack *pTrk,Float_t &xPc,Float_t &yPc,Float_t &xRa,Float_t &yRa,Float_t &theta,Float_t &phi) |
59d9d4b3 | 75 | { |
76 | // Static method to find intersection in between given track and HMPID chambers | |
77 | // Arguments: pTrk- ESD track; xPc,yPc- track intersection with PC in LORS [cm] | |
78 | // Returns: intersected chamber ID or -1 | |
b4866751 | 79 | AliHMPIDtrack *hmpTrk = new AliHMPIDtrack(*pTrk); //create a hmpid track to be used for propagation and matching |
ae5a42aa | 80 | for(Int_t i=AliHMPIDParam::kMinCh;i<=AliHMPIDParam::kMaxCh;i++){ //chambers loop |
b4866751 | 81 | Int_t chInt = IntTrkCha(i,hmpTrk,xPc,yPc,xRa,yRa,theta,phi); |
82 | if(chInt>=0) {delete hmpTrk;hmpTrk=0x0;return chInt;} | |
59d9d4b3 | 83 | } //chambers loop |
b4866751 | 84 | delete hmpTrk; hmpTrk=0x0; |
39cd22e6 | 85 | return -1; //no intersection with HMPID chambers |
59d9d4b3 | 86 | }//IntTrkCha() |
d3da6dc4 | 87 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
496c71b0 | 88 | Int_t AliHMPIDTracker::IntTrkCha(Int_t ch,AliHMPIDtrack *pTrk,Float_t &xPc,Float_t &yPc,Float_t &xRa,Float_t &yRa,Float_t &theta,Float_t &phi) |
89 | { | |
90 | // Static method to find intersection in between given track and HMPID chambers | |
91 | // Arguments: pTrk- HMPID track; xPc,yPc- track intersection with PC in LORS [cm] | |
92 | // Returns: intersected chamber ID or -1 | |
93 | AliHMPIDParam *pParam=AliHMPIDParam::Instance(); | |
94 | Double_t p1[3],n1[3]; | |
95 | pParam->Norm(ch,n1); | |
96 | pParam->Point(ch,p1,AliHMPIDParam::kRad); //point & norm for middle of radiator plane | |
97 | Double_t p2[3],n2[3]; | |
b4866751 | 98 | pParam->Norm(ch,n2); |
496c71b0 | 99 | pParam->Point(ch,p2,AliHMPIDParam::kPc); //point & norm for entrance to PC plane |
97a4d538 | 100 | if(pTrk->Intersect(p1,n1)==kFALSE) return -1; //try to intersect track with the middle of radiator |
101 | if(pTrk->Intersect(p2,n2)==kFALSE) return -1; | |
496c71b0 | 102 | pParam->Mars2LorsVec(ch,n1,theta,phi); //track angles at RAD |
103 | pParam->Mars2Lors (ch,p1,xRa,yRa); //TRKxRAD position | |
104 | pParam->Mars2Lors (ch,p2,xPc,yPc); //TRKxPC position | |
105 | if(AliHMPIDParam::IsInside(xPc,yPc,pParam->DistCut())==kTRUE) return ch; //return intersected chamber | |
106 | return -1; //no intersection with HMPID chambers | |
107 | }//IntTrkCha() | |
108 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ | |
d3da6dc4 | 109 | Int_t AliHMPIDTracker::LoadClusters(TTree *pCluTree) |
110 | { | |
59d9d4b3 | 111 | // Interface callback methode invoked from AliReconstruction::RunTracking() to load HMPID clusters before PropagateBack() gets control. Done once per event. |
d3da6dc4 | 112 | // Arguments: pCluTree- pointer to clusters tree got by AliHMPIDLoader::LoadRecPoints("read") then AliHMPIDLoader::TreeR() |
113 | // Returns: error code (currently ignored in AliReconstruction::RunTraking()) | |
ae5a42aa | 114 | for(int i=AliHMPIDParam::kMinCh;i<=AliHMPIDParam::kMaxCh;i++) pCluTree->SetBranchAddress(Form("HMPID%d",i),&((*fClu)[i])); |
94b1fbfa | 115 | pCluTree->GetEntry(0); |
94b1fbfa | 116 | return 0; |
59d9d4b3 | 117 | }//LoadClusters() |
d3da6dc4 | 118 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
af885e0f | 119 | Int_t AliHMPIDTracker::PropagateBack(AliESDEvent *pEsd) |
abb5f786 | 120 | { |
59d9d4b3 | 121 | // Interface pure virtual in AliTracker. Invoked from AliReconstruction::RunTracking() after invocation of AliTracker::LoadClusters() once per event |
abb5f786 | 122 | // Agruments: pEsd - pointer to ESD |
123 | // Returns: error code | |
f455af6e | 124 | AliCDBEntry *pNmeanEnt =AliCDBManager::Instance()->Get("HMPID/Calib/Nmean"); //contains TObjArray of 42 TF1 + 1 EPhotMean |
49881df7 | 125 | AliCDBEntry *pQthreEnt =AliCDBManager::Instance()->Get("HMPID/Calib/Qthre"); //contains TObjArray of 42 (7ch * 6sec) TF1 |
0a7c7084 | 126 | if(!pNmeanEnt) AliError("No Nmean C6F14 "); |
127 | if(!pQthreEnt) AliError("No Qthre"); | |
94b1fbfa | 128 | |
afe12692 | 129 | return Recon(pEsd,fClu,(TObjArray*)pNmeanEnt->GetObject(),(TObjArray*)pQthreEnt->GetObject()); |
611e810d | 130 | }//PropagateBack() |
abb5f786 | 131 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
afe12692 | 132 | Int_t AliHMPIDTracker::Recon(AliESDEvent *pEsd,TObjArray *pClus,TObjArray *pNmean, TObjArray *pQthre) |
d3da6dc4 | 133 | { |
aed5907d | 134 | // Static method to reconstruct the Cherenkov angle for all valid tracks of a given event. |
59d9d4b3 | 135 | // Arguments: pEsd- pointer ESD; pClu- pointer to clusters for all chambers; pNmean - pointer to all function Nmean=f(time) |
aed5907d | 136 | // Returns: error code, 0 if no errors |
137 | // | |
138 | // Algortihm: Loop over tracks | |
139 | // | |
140 | // 1. Find the closest MIP cluster using fast tracks extrapolation method | |
141 | // 2. Propagate track to the MIP cluster using the STEER method | |
142 | // 3. Update the track information with MIP cluster (Improved angular and position resolution - to be used for Cherenkov angle calculation) | |
143 | // 4. Propagate back the constrained track to the radiator radius ( not exact yet) | |
144 | // 5. Propagation in the last 10 cm with the fast method | |
145 | // 6. Set ESDtrack information | |
146 | // 7. Calculate the Cherenkov angle | |
147 | ||
148 | const Double_t kMaxSnp=0.9; //maximal snp for prolongation | |
149 | const Double_t kdRadiator=10; // distance between radiator and the plane | |
496c71b0 | 150 | AliHMPIDRecon recon; //instance of reconstruction class, nothing important in ctor |
b8541917 | 151 | AliHMPIDParam *pParam = AliHMPIDParam::Instance(); //Instance of AliHMPIDParam |
39cd22e6 | 152 | Float_t xPc,yPc,xRa,yRa,theta,phi; |
aed5907d | 153 | |
43e51ec6 | 154 | Double_t cluLORS[2]={0}; |
496c71b0 | 155 | Int_t nMipClusTot=0; |
aed5907d | 156 | |
84770d7b | 157 | Double_t qthre = 0; Double_t nmean=0; Int_t hvsec=0; |
496c71b0 | 158 | Int_t nClusCh[AliHMPIDParam::kMaxCh+1]; |
3e630437 | 159 | |
15f675cb | 160 | Bool_t tsRight = kTRUE; |
161 | ||
3e630437 | 162 | UInt_t tsmin = (UInt_t)((TF1*)pQthre->At(0))->GetXmin(); // |
163 | UInt_t tsmax = (UInt_t)((TF1*)pQthre->At(0))->GetXmax(); // | |
164 | UInt_t ts = pEsd->GetTimeStamp(); | |
496c71b0 | 165 | |
3e630437 | 166 | if(ts<tsmin || ts>tsmax) { |
167 | AliWarning(Form(" in HMPID time stamp out of range!!! Please check!!! ts = %i",ts)); | |
15f675cb | 168 | tsRight = kFALSE; |
3e630437 | 169 | } |
170 | ||
496c71b0 | 171 | for(Int_t iTrk=0;iTrk<pEsd->GetNumberOfTracks();iTrk++){ //loop on the ESD tracks in the event |
c38d443f | 172 | |
aed5907d | 173 | // Double_t bestChi2=99999;chi2=99999; //init. track matching params |
b8541917 | 174 | Double_t dmin=999999,bz=0,distCut=1,distParams[5]={1}; |
43e51ec6 | 175 | |
176 | Bool_t isOkDcut=kFALSE; | |
177 | Bool_t isOkQcut=kFALSE; | |
178 | Bool_t isMatched=kFALSE; | |
179 | ||
496c71b0 | 180 | AliHMPIDCluster *bestHmpCluster=0x0; //the best matching cluster |
c38d443f | 181 | AliESDtrack *pTrk = pEsd->GetTrack(iTrk); //get reconstructed track |
182 | ||
183 | if(!pTrk->IsOn(AliESDtrack::kTPCout)) continue; | |
184 | ||
185 | if(pTrk->IsOn(AliESDtrack::kTPCrefit)) continue; | |
79439569 | 186 | AliESDfriendTrack *ftrack= (AliESDfriendTrack *)pTrk->GetFriendTrack(); |
187 | if (!ftrack) continue; | |
188 | if (!ftrack->GetTPCOut()) continue; | |
496c71b0 | 189 | AliHMPIDtrack *hmpTrk = new AliHMPIDtrack(*pTrk); //create a hmpid track to be used for propagation and matching |
aed5907d | 190 | AliHMPIDtrack *hmpTrkConstrained = 0; //create a hmpid track to be used for propagation and matching |
79439569 | 191 | hmpTrk->Set(ftrack->GetTPCOut()->GetX(), ftrack->GetTPCOut()->GetAlpha(),ftrack->GetTPCOut()->GetParameter(), ftrack->GetTPCOut()->GetCovariance()); |
192 | // | |
aed5907d | 193 | bz=AliTracker::GetBz(); |
194 | ||
195 | //initial flags for HMPID ESD infos | |
43e51ec6 | 196 | pTrk->SetHMPIDtrk(0,0,0,0); //no intersection found |
197 | pTrk->SetHMPIDmip(0,0,0,0); //store mip info in any case | |
198 | pTrk->SetHMPIDcluIdx(99,99999); //chamber not found, mip not yet considered | |
199 | pTrk->SetHMPIDsignal(AliHMPIDRecon::kNotPerformed); //ring reconstruction not yet performed | |
496c71b0 | 200 | |
af291e40 | 201 | Int_t ipCh=IntTrkCha(pTrk,xPc,yPc,xRa,yRa,theta,phi); //find the intersected chamber for this track |
4ccd1903 | 202 | if(ipCh<0) {delete hmpTrk;hmpTrk=0x0;continue;} //no intersection at all, go after next track |
43e51ec6 | 203 | |
97a4d538 | 204 | pTrk->SetHMPIDtrk(xPc,yPc,theta,phi); //store initial infos |
43e51ec6 | 205 | pTrk->SetHMPIDcluIdx(ipCh,9999); //set chamber, index of cluster + cluster size |
496c71b0 | 206 | |
aed5907d | 207 | // track intersects the chamber ipCh: find the MIP |
496c71b0 | 208 | |
209 | TClonesArray *pMipCluLst=(TClonesArray *)pClus->At(ipCh); //get the list of clusters | |
210 | nMipClusTot = pMipCluLst->GetEntries(); //total number of clusters in the given chamber | |
211 | nClusCh[ipCh] = nMipClusTot; | |
212 | ||
4ccd1903 | 213 | if(nMipClusTot==0) {delete hmpTrk;hmpTrk=0x0;continue;} |
43e51ec6 | 214 | |
aed5907d | 215 | Int_t index=-1; //index of the "best" matching cluster |
216 | // | |
217 | // 1. Find the closest MIP cluster using fast tracks extrapolation method | |
218 | // | |
219 | for (Int_t iClu=0; iClu<nMipClusTot;iClu++) { //clusters loop | |
496c71b0 | 220 | |
aed5907d | 221 | AliHMPIDCluster *pClu=(AliHMPIDCluster*)pMipCluLst->UncheckedAt(iClu); //get the cluster |
222 | // evaluate qThre | |
15f675cb | 223 | if(tsRight){ |
aed5907d | 224 | if(pQthre->GetEntriesFast()==pParam->kMaxCh+1) { |
225 | qthre=((TF1*)pQthre->At(pClu->Ch()))->Eval(ts); // | |
226 | } else { // in the past just 1 qthre | |
227 | hvsec = pParam->InHVSector(pClu->Y()); // per chamber | |
228 | if(hvsec>=0) qthre=((TF1*)pQthre->At(6*ipCh+hvsec))->Eval(ts); // | |
15f675cb | 229 | } |
230 | } else qthre = pParam->QCut(); | |
aed5907d | 231 | |
232 | // | |
496c71b0 | 233 | if(pClu->Q()<qthre) continue; //charge compartible with MIP clusters |
234 | isOkQcut = kTRUE; | |
aed5907d | 235 | // |
236 | cluLORS[0]=pClu->X(); cluLORS[1]=pClu->Y(); //get the LORS coordinates of the cluster | |
43e51ec6 | 237 | Double_t dist = TMath::Sqrt((xPc-cluLORS[0])*(xPc-cluLORS[0])+(yPc-cluLORS[1])*(yPc-cluLORS[1])); |
238 | ||
239 | if(dist<dmin) { | |
240 | dmin = dist; | |
241 | index=iClu; | |
242 | bestHmpCluster=pClu; | |
243 | } | |
4ccd1903 | 244 | } // clusters loop |
b8541917 | 245 | |
aed5907d | 246 | // moved down |
247 | /*if(!isOkQcut) { | |
496c71b0 | 248 | pTrk->SetHMPIDsignal(pParam->kMipQdcCut); |
4ccd1903 | 249 | delete hmpTrk;hmpTrk=0x0; continue; |
aed5907d | 250 | }*/ |
251 | ||
252 | // | |
253 | // 2. Propagate track to the MIP cluster using the STEER method | |
79439569 | 254 | // |
95d2d29e | 255 | |
256 | if(!bestHmpCluster) {delete hmpTrk;hmpTrk=0x0; delete hmpTrkConstrained;hmpTrkConstrained=0x0; continue;} | |
257 | ||
79439569 | 258 | TVector3 vG = pParam->Lors2Mars(ipCh,bestHmpCluster->X(),bestHmpCluster->Y()); |
259 | Double_t gx = vG[0]; | |
260 | Double_t gy = vG[1]; | |
261 | Double_t gz = vG[2]; | |
262 | Double_t alpha=TMath::ATan2(gy,gx); | |
263 | Double_t radiusH=TMath::Sqrt(gy*gy+gx*gx); | |
aed5907d | 264 | if (!(hmpTrk->Rotate(alpha,kTRUE))) continue; |
265 | if(!AliTrackerBase::PropagateTrackToBxByBz(hmpTrk,radiusH,pTrk->GetMass(),1,kFALSE,kMaxSnp,-1)) {delete hmpTrk;hmpTrk=0x0; delete hmpTrkConstrained;hmpTrkConstrained=0x0; continue;} | |
79439569 | 266 | // |
aed5907d | 267 | // 3. Update the track with MIP cluster (Improved angular and position resolution - to be used for Cherenkov angle calculation) |
268 | // | |
269 | AliExternalTrackParam trackC(*hmpTrk); | |
270 | Double_t posC[2]={0,gz}; | |
271 | Double_t covC[3]={0.1*0.1, 0, 0.1*0.1}; | |
272 | trackC.Update(posC,covC); | |
273 | // | |
274 | // 4. Propagate back the constrained track to the radiator radius ( not exact yet) | |
275 | // | |
276 | hmpTrkConstrained = new AliHMPIDtrack(*pTrk); | |
277 | hmpTrkConstrained->Set(trackC.GetX(), trackC.GetAlpha(),trackC.GetParameter(), trackC.GetCovariance()); | |
278 | if(!AliTrackerBase::PropagateTrackToBxByBz(hmpTrkConstrained,radiusH-kdRadiator,pTrk->GetMass(),1,kFALSE,kMaxSnp,1)) {delete hmpTrk;hmpTrk=0x0; delete hmpTrkConstrained;hmpTrkConstrained=0x0;continue;} | |
279 | // | |
280 | // 5. Propagation in the last 10 cm with the fast method | |
281 | // | |
282 | Float_t xPc0=0, yPc0=0; | |
283 | ||
7243a52d | 284 | IntTrkCha(ipCh, hmpTrk, xPc0,yPc0,xRa,yRa,theta,phi); |
285 | IntTrkCha(ipCh, hmpTrkConstrained, xPc,yPc,xRa,yRa,theta,phi); | |
aed5907d | 286 | // |
287 | // 6. Set ESDtrack information | |
288 | // | |
289 | Int_t cluSiz = bestHmpCluster->Size(); | |
290 | pTrk->SetHMPIDmip(bestHmpCluster->X(),bestHmpCluster->Y(),(Int_t)bestHmpCluster->Q(),0); //store mip info in any case | |
291 | pTrk->SetHMPIDcluIdx(ipCh,index+1000*cluSiz); //set chamber, index of cluster + cluster size | |
292 | pTrk->SetHMPIDtrk(xPc0,yPc0,theta,phi); | |
79439569 | 293 | // |
79439569 | 294 | // |
295 | // Dump debug info if specified | |
296 | // | |
aed5907d | 297 | if (AliHMPIDReconstructor::StreamLevel()>0) { |
79439569 | 298 | AliExternalTrackParam * trackTPC=new AliExternalTrackParam(*(ftrack->GetTPCOut())); |
299 | AliExternalTrackParam * trackCurrent=new AliExternalTrackParam(*pTrk); | |
bf3b953e | 300 | if(!trackTPC->Rotate(alpha)) continue; |
301 | if(!trackCurrent->Rotate(alpha)) continue; | |
79439569 | 302 | Bool_t statusTPC= AliTracker::PropagateTrackToBxByBz(trackTPC,radiusH,pTrk->GetMass(),1,kFALSE,kMaxSnp,-1); |
f23adc8f | 303 | Bool_t statusCurrent=AliTracker::PropagateTrackToBxByBz(trackCurrent,radiusH,pTrk->GetMass(),1,kFALSE,kMaxSnp,-1); |
304 | AliExternalTrackParam * trackTPCNB=new AliExternalTrackParam(*(ftrack->GetTPCOut())); | |
bf3b953e | 305 | if(!trackTPCNB->Rotate(alpha)) continue; |
f23adc8f | 306 | Bool_t statusTPCNB=kTRUE; |
307 | Double_t bfield[3]={0,0,0}; | |
308 | for (Double_t radius=trackTPCNB->GetX(); radius<radiusH; radius+=1){ | |
309 | Double_t xyz[3]; | |
310 | trackTPCNB->GetXYZ(xyz); | |
311 | GetBxByBz(xyz,bfield); | |
312 | statusTPCNB&=trackTPCNB->PropagateToBxByBz(radius,bfield); | |
313 | } | |
314 | statusTPCNB&=trackTPCNB->PropagateToBxByBz(radiusH,bfield); | |
315 | // | |
aed5907d | 316 | Double_t tanAlpha=TMath::Tan(TMath::ASin(trackTPC->GetSnp())); |
79439569 | 317 | Double_t deltaC= trackTPC->GetC(AliTrackerBase::GetBz())-ftrack->GetTPCOut()->GetC(AliTrackerBase::GetBz()); |
318 | // | |
aed5907d | 319 | AliExternalTrackParam * trackTPCConstrained= new AliExternalTrackParam(*trackTPC); |
320 | Double_t pos[2]={0,gz}; | |
321 | Double_t cov[3]={0.1*0.1, 0, 0.1*0.1}; | |
322 | Double_t chi2C = trackTPCConstrained->GetPredictedChi2(pos,cov); | |
323 | trackTPCConstrained->Update(pos,cov); | |
79439569 | 324 | (*fDebugStreamer)<<"track"<< |
aed5907d | 325 | "rH="<<radiusH<< // radius of cluster |
326 | "angle="<<tanAlpha<< // tan of the local inlination angle | |
327 | "dC="<<deltaC<< // delta of the curvature | |
f23adc8f | 328 | "trackTPC.="<<trackTPC<< // TPC outer param extrapolated to the HMPID |
329 | "trackTPCNB.="<<trackTPCNB<< // TPC track prpagated with material budget correction | |
aed5907d | 330 | "chi2C="<<chi2C<< |
f23adc8f | 331 | "trackTPCC.="<<trackTPCConstrained<< // TPC outer param extrapolated to the HMPID constrained |
aed5907d | 332 | "trackCurrent.="<<trackCurrent<< // current track extrapolated to the HMPID |
333 | "sTPC="<<statusTPC<< // status for the current TPC track | |
334 | "sCurrent="<<statusCurrent<< // status for the current global track | |
335 | "cl.="<<bestHmpCluster<< // HMPID cluster | |
79439569 | 336 | // |
aed5907d | 337 | "t.="<<pTrk<< // curent esd track |
338 | "ft.="<<ftrack<< // friend track | |
339 | "hmpTrk.="<<hmpTrk<< // hmpid tracks as used in the following code | |
f23adc8f | 340 | "hmpTrkC.="<<hmpTrkConstrained<< // constrained hmpid tracks as used in the following code |
aed5907d | 341 | "gx="<<gx<< // global cluster position X |
342 | "gy="<<gy<< // Y | |
343 | "gz="<<gz<< // Z | |
79439569 | 344 | "\n"; |
aed5907d | 345 | } |
346 | // | |
347 | // | |
348 | // | |
349 | if(!isOkQcut) { | |
350 | pTrk->SetHMPIDsignal(pParam->kMipQdcCut); | |
351 | delete hmpTrk;hmpTrk=0x0; | |
352 | delete hmpTrkConstrained;hmpTrkConstrained=0x0; | |
353 | continue; | |
354 | } | |
79439569 | 355 | |
b8541917 | 356 | if(AliHMPIDReconstructor::GetRecoParam()) //retrieve distance cut |
357 | { | |
b8541917 | 358 | if(AliHMPIDReconstructor::GetRecoParam()->IsFixedDistCut()==kTRUE) //distance cut is fixed number |
359 | { | |
360 | distCut=AliHMPIDReconstructor::GetRecoParam()->GetHmpTrackMatchingDist(); | |
361 | } | |
362 | else | |
363 | { | |
13fb7604 | 364 | for(Int_t ipar=0;ipar<5;ipar++) distParams[ipar]=AliHMPIDReconstructor::GetRecoParam()->GetHmpTrackMatchingDistParam(ipar); //prevision: distance cut is function of momentum |
b8541917 | 365 | distCut=distParams[0]+distParams[1]*TMath::Power(distParams[2]*pTrk->GetP(),distParams[3]); //prevision: change functional form to be more precise |
366 | } | |
367 | } | |
368 | else {distCut=pParam->DistCut();} | |
aed5907d | 369 | |
370 | //dmin recalculated | |
371 | ||
372 | dmin = TMath::Sqrt((xPc0-bestHmpCluster->X())*(xPc0-bestHmpCluster->X())+(yPc0-bestHmpCluster->Y())*(yPc0-bestHmpCluster->Y())); | |
373 | ||
b8541917 | 374 | if(dmin < distCut) { |
496c71b0 | 375 | isOkDcut = kTRUE; |
4ccd1903 | 376 | } |
aed5907d | 377 | //isOkDcut = kTRUE; // switch OFF cut |
b8541917 | 378 | |
496c71b0 | 379 | if(!isOkDcut) { |
496c71b0 | 380 | pTrk->SetHMPIDsignal(pParam->kMipDistCut); //closest cluster with enough charge is still too far from intersection |
381 | } | |
382 | ||
383 | if(isOkQcut*isOkDcut) isMatched = kTRUE; // MIP-Track matched !! | |
384 | ||
aed5907d | 385 | if(!isMatched) {delete hmpTrk;hmpTrk=0x0;delete hmpTrkConstrained;hmpTrkConstrained=0x0;continue;} // If matched continue... |
43e51ec6 | 386 | |
aed5907d | 387 | Bool_t isOk = kTRUE; |
95d2d29e | 388 | if(!isOk) {delete hmpTrk;hmpTrk=0x0; delete hmpTrkConstrained;hmpTrkConstrained=0x0; continue;} |
aed5907d | 389 | pTrk->SetOuterHmpParam(hmpTrkConstrained,AliESDtrack::kHMPIDout); |
c38d443f | 390 | |
391 | FillResiduals(hmpTrk,bestHmpCluster,kFALSE); | |
b8541917 | 392 | |
aed5907d | 393 | Int_t iRad = pParam->Radiator(yRa); //evaluate the radiator involved |
496c71b0 | 394 | |
496c71b0 | 395 | //evaluate nMean |
15f675cb | 396 | if(tsRight){ |
397 | if(pNmean->GetEntries()==21) { //for backward compatibility | |
398 | nmean=((TF1*)pNmean->At(3*ipCh))->Eval(ts); //C6F14 Nmean for this chamber | |
399 | } else { | |
15f675cb | 400 | if(iRad < 0) { |
0a7c7084 | 401 | nmean = -1; |
15f675cb | 402 | } else { |
403 | Double_t tLow = ((TF1*)pNmean->At(6*ipCh+2*iRad ))->Eval(ts); //C6F14 low temp for this chamber | |
404 | Double_t tHigh = ((TF1*)pNmean->At(6*ipCh+2*iRad+1))->Eval(ts); //C6F14 high temp for this chamber | |
405 | Double_t tExp = pParam->FindTemp(tLow,tHigh,yRa); //estimated temp for that chamber at that y | |
406 | nmean = pParam->NIdxRad(AliHMPIDParam::Instance()->GetEPhotMean(),tExp); //mean ref idx @ a given temp | |
407 | } | |
408 | if(nmean < 0){ //track didn' t pass through the radiator | |
496c71b0 | 409 | pTrk->SetHMPIDsignal(AliHMPIDRecon::kNoRad); //set the appropriate flag |
410 | pTrk->SetHMPIDcluIdx(ipCh,index+1000*cluSiz); //set index of cluster | |
4ccd1903 | 411 | delete hmpTrk;hmpTrk=0x0; |
aed5907d | 412 | delete hmpTrkConstrained;hmpTrkConstrained=0x0; |
496c71b0 | 413 | continue; |
15f675cb | 414 | } |
aed5907d | 415 | } |
416 | } else nmean = pParam->MeanIdxRad(); | |
417 | // | |
418 | // 7. Calculate the Cherenkov angle | |
496c71b0 | 419 | // |
aed5907d | 420 | recon.SetImpPC(xPc0,yPc0); //store track impact to PC |
97a4d538 | 421 | recon.CkovAngle(pTrk,(TClonesArray *)pClus->At(ipCh),index,nmean,xRa,yRa); //search for Cerenkov angle of this track |
aed5907d | 422 | |
423 | Double_t thetaCkov = pTrk->GetHMPIDsignal(); | |
424 | ||
425 | if (AliHMPIDReconstructor::StreamLevel()>0) { | |
426 | AliExternalTrackParam * trackTPC=new AliExternalTrackParam(*(ftrack->GetTPCOut())); | |
427 | AliExternalTrackParam * trackCurrent=new AliExternalTrackParam(*pTrk); | |
bf3b953e | 428 | if(!trackTPC->Rotate(alpha)) continue; |
429 | if(!trackCurrent->Rotate(alpha)) continue; | |
aed5907d | 430 | Bool_t statusTPC= AliTracker::PropagateTrackToBxByBz(trackTPC,radiusH,pTrk->GetMass(),1,kFALSE,kMaxSnp,-1); |
431 | Bool_t statusCurrent=AliTracker::PropagateTrackToBxByBz(trackCurrent,radiusH,pTrk->GetMass(),1,kFALSE,kMaxSnp,-1); | |
432 | Double_t tanAlpha=TMath::Tan(TMath::ASin(trackTPC->GetSnp())); | |
433 | Double_t deltaC= trackTPC->GetC(AliTrackerBase::GetBz())-ftrack->GetTPCOut()->GetC(AliTrackerBase::GetBz()); | |
434 | // | |
f23adc8f | 435 | AliExternalTrackParam * trackTPCNB=new AliExternalTrackParam(*(ftrack->GetTPCOut())); |
bf3b953e | 436 | if(!trackTPCNB->Rotate(alpha)) continue; |
f23adc8f | 437 | Bool_t statusTPCNB=kTRUE; |
438 | Double_t bfield[3]={0,0,0}; | |
439 | for (Double_t radius=trackTPCNB->GetX(); radius<radiusH; radius+=1){ | |
440 | Double_t xyz[3]; | |
441 | trackTPCNB->GetXYZ(xyz); | |
442 | GetBxByBz(xyz,bfield); | |
443 | statusTPCNB&=trackTPCNB->PropagateToBxByBz(radius,bfield); | |
444 | } | |
445 | statusTPCNB&=trackTPCNB->PropagateToBxByBz(radiusH,bfield); | |
446 | ||
aed5907d | 447 | AliExternalTrackParam * trackTPCConstrained= new AliExternalTrackParam(*trackTPC); |
448 | Double_t pos[2]={0,gz}; | |
449 | Double_t cov[3]={0.1*0.1, 0, 0.1*0.1}; | |
450 | Double_t chi2C = trackTPCConstrained->GetPredictedChi2(pos,cov); | |
451 | trackTPCConstrained->Update(pos,cov); | |
452 | (*fDebugStreamer)<<"track2"<< | |
453 | "rH="<<radiusH<< // radius of cluster | |
454 | "angle="<<tanAlpha<< // tan of the local inlination angle | |
455 | "dC="<<deltaC<< // delta of the curvature | |
f23adc8f | 456 | "trackTPC.="<<trackTPC<< // TPC outer param extrapolated to the HMPID |
457 | "trackTPCNB.="<<trackTPCNB<< // TPC outer param extrapolated to the HMPID | |
aed5907d | 458 | "chi2C="<<chi2C<< |
f23adc8f | 459 | "trackTPCC.="<<trackTPCConstrained<< // TPC outer param extrapolated to the HMPID constrained |
aed5907d | 460 | "trackCurrent.="<<trackCurrent<< // current track extrapolated to the HMPID |
461 | "sTPC="<<statusTPC<< // status for the current TPC track | |
462 | "sCurrent="<<statusCurrent<< // status for the current global track | |
463 | "cl.="<<bestHmpCluster<< // HMPID cluster | |
464 | // | |
465 | "t.="<<pTrk<< // curent esd track | |
466 | "ft.="<<ftrack<< // friend track | |
467 | "hmpTrk.="<<hmpTrk<< // hmpid tracks as used in the following code | |
f23adc8f | 468 | "hmpTrkC.="<<hmpTrkConstrained<< // constrained hmpid tracks as used in the following code |
aed5907d | 469 | "gx="<<gx<< // global cluster position X |
470 | "gy="<<gy<< // Y | |
471 | "gz="<<gz<< // Z | |
472 | "thetaCkov="<<thetaCkov<< // Cherenkov angle | |
473 | "\n"; | |
474 | } | |
475 | ||
476 | if(pTrk->GetHMPIDsignal()<0) { | |
477 | delete hmpTrk;hmpTrk=0x0; | |
478 | delete hmpTrkConstrained; hmpTrkConstrained=0x0; | |
479 | continue;} | |
235a21c2 | 480 | |
e56b695f | 481 | AliHMPIDPid pID; |
482 | Double_t prob[5]; | |
b7a2d22d | 483 | pID.FindPid(pTrk,nmean,5,prob); |
e56b695f | 484 | pTrk->SetHMPIDpid(prob); |
aed5907d | 485 | delete hmpTrk; hmpTrk=0x0; |
486 | delete hmpTrkConstrained; hmpTrkConstrained=0x0; | |
496c71b0 | 487 | }//iTrk |
488 | ||
d3da6dc4 | 489 | return 0; // error code: 0=no error; |
611e810d | 490 | }//Recon() |
491 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ | |
b7a2d22d | 492 | Int_t AliHMPIDTracker::ReconFromKin(AliESDEvent *pEsd,TObjArray *pClus,TObjArray *pNmean, TObjArray *pQthre) |
493 | { | |
494 | // Static method to reconstruct Theta Ckov for all valid tracks of a given event. | |
495 | // Arguments: pEsd- pointer ESD; pClu- pointer to clusters for all chambers; pNmean - pointer to all function Nmean=f(time) | |
496 | // Returns: error code, 0 if no errors | |
497 | ||
498 | AliHMPIDRecon recon; //instance of reconstruction class, nothing important in ctor | |
499 | AliHMPIDParam *pParam = AliHMPIDParam::Instance(); //Instance of AliHMPIDParam | |
500 | Float_t xPc,yPc,xRa,yRa,theta,phi; | |
501 | Double_t cluLORS[2]={0}; | |
502 | Int_t nMipClusTot=0; | |
503 | Double_t qthre = 0; Double_t nmean=0; Int_t hvsec=0; | |
504 | Int_t nClusCh[AliHMPIDParam::kMaxCh+1]; | |
505 | ||
506 | Bool_t tsRight = kTRUE; | |
507 | ||
508 | UInt_t tsmin = (UInt_t)((TF1*)pQthre->At(0))->GetXmin(); // | |
509 | UInt_t tsmax = (UInt_t)((TF1*)pQthre->At(0))->GetXmax(); // | |
510 | UInt_t ts = pEsd->GetTimeStamp(); | |
511 | ||
512 | if(ts<tsmin || ts>tsmax) { | |
513 | AliWarning(Form(" in HMPID time stamp out of range!!! Please check!!! ts = %i",ts)); | |
514 | tsRight = kFALSE; | |
515 | } | |
516 | ||
517 | for(Int_t iTrk=0;iTrk<pEsd->GetNumberOfTracks();iTrk++){ //loop on the ESD tracks in the event | |
518 | ||
519 | Double_t dmin=999999,bz=0,distCut=1,distParams[5]={1}; | |
520 | ||
521 | Bool_t isOkDcut=kFALSE; | |
522 | Bool_t isOkQcut=kFALSE; | |
523 | Bool_t isMatched=kFALSE; | |
524 | ||
525 | AliHMPIDCluster *bestHmpCluster=0x0; //the best matching cluster | |
526 | AliESDtrack *pTrk = pEsd->GetTrack(iTrk); //get reconstructed track | |
527 | ||
528 | AliHMPIDtrack *hmpTrk = new AliHMPIDtrack(*pTrk); //create a hmpid track to be used for propagation and matching | |
529 | bz=AliTracker::GetBz(); | |
530 | //initial flags for HMPID ESD infos | |
531 | pTrk->SetHMPIDtrk(0,0,0,0); //no intersection found | |
532 | pTrk->SetHMPIDmip(0,0,0,0); //store mip info in any case | |
533 | pTrk->SetHMPIDcluIdx(99,99999); //chamber not found, mip not yet considered | |
534 | pTrk->SetHMPIDsignal(AliHMPIDRecon::kNotPerformed); //ring reconstruction not yet performed | |
535 | ||
536 | Int_t ipCh=IntTrkCha(pTrk,xPc,yPc,xRa,yRa,theta,phi); //find the intersected chamber for this track | |
537 | if(ipCh<0) {delete hmpTrk;hmpTrk=0x0;continue;} //no intersection at all, go after next track | |
538 | ||
539 | pTrk->SetHMPIDtrk(xPc,yPc,theta,phi); //store initial infos | |
540 | pTrk->SetHMPIDcluIdx(ipCh,9999); //set chamber, index of cluster + cluster size | |
541 | ||
542 | // track intersects the chamber ipCh: find the MIP | |
543 | ||
544 | TClonesArray *pMipCluLst=(TClonesArray *)pClus->At(ipCh); //get the list of clusters | |
545 | nMipClusTot = pMipCluLst->GetEntries(); //total number of clusters in the given chamber | |
546 | nClusCh[ipCh] = nMipClusTot; | |
547 | ||
548 | if(nMipClusTot==0) {delete hmpTrk;hmpTrk=0x0;continue;} | |
549 | ||
550 | Int_t index=-1; //index of the "best" matching cluster | |
551 | ||
552 | for (Int_t iClu=0; iClu<nMipClusTot;iClu++) { //clusters loop | |
553 | ||
554 | AliHMPIDCluster *pClu=(AliHMPIDCluster*)pMipCluLst->UncheckedAt(iClu); //get the cluster | |
555 | // evaluate qThre | |
556 | if(tsRight){ | |
557 | if(pQthre->GetEntriesFast()==pParam->kMaxCh+1) { | |
558 | qthre=((TF1*)pQthre->At(pClu->Ch()))->Eval(ts); // | |
559 | } else { // in the past just 1 qthre | |
560 | hvsec = pParam->InHVSector(pClu->Y()); // per chamber | |
561 | if(hvsec>=0) qthre=((TF1*)pQthre->At(6*ipCh+hvsec))->Eval(ts); // | |
562 | } | |
563 | } else qthre = pParam->QCut(); | |
564 | ||
565 | // | |
566 | if(pClu->Q()<qthre) continue; //charge compartible with MIP clusters | |
567 | isOkQcut = kTRUE; | |
568 | // | |
569 | cluLORS[0]=pClu->X(); cluLORS[1]=pClu->Y(); //get the LORS coordinates of the cluster | |
570 | Double_t dist = TMath::Sqrt((xPc-cluLORS[0])*(xPc-cluLORS[0])+(yPc-cluLORS[1])*(yPc-cluLORS[1])); | |
571 | ||
572 | if(dist<dmin) { | |
573 | dmin = dist; | |
574 | index=iClu; | |
575 | bestHmpCluster=pClu; | |
576 | } | |
577 | } // clusters loop | |
578 | ||
579 | if(!isOkQcut) { | |
580 | pTrk->SetHMPIDsignal(pParam->kMipQdcCut); | |
581 | delete hmpTrk;hmpTrk=0x0; continue; | |
582 | } | |
583 | ||
584 | Double_t radius = (pParam->Lors2Mars(ipCh,pParam->SizeAllX()/2,pParam->SizeAllY()/2)).Mag(); | |
585 | ||
586 | if(!AliTracker::PropagateTrackToBxByBz(hmpTrk,radius,pTrk->GetMass(),1,kFALSE)) {delete hmpTrk;hmpTrk=0x0;continue;} | |
587 | ||
588 | if(!hmpTrk->PropagateTo(bestHmpCluster)) {delete hmpTrk;hmpTrk=0x0;continue;} | |
589 | ||
590 | Int_t cluSiz = bestHmpCluster->Size(); | |
591 | pTrk->SetHMPIDmip(bestHmpCluster->X(),bestHmpCluster->Y(),(Int_t)bestHmpCluster->Q(),0); //store mip info in any case | |
592 | pTrk->SetHMPIDcluIdx(ipCh,index+1000*cluSiz); //set chamber, index of cluster + cluster size | |
593 | ||
594 | if(AliHMPIDReconstructor::GetRecoParam()) //retrieve distance cut | |
595 | { | |
596 | if(AliHMPIDReconstructor::GetRecoParam()->IsFixedDistCut()==kTRUE) //distance cut is fixed number | |
597 | { | |
598 | distCut=AliHMPIDReconstructor::GetRecoParam()->GetHmpTrackMatchingDist(); | |
599 | } | |
600 | else | |
601 | { | |
602 | for(Int_t ipar=0;ipar<5;ipar++) distParams[ipar]=AliHMPIDReconstructor::GetRecoParam()->GetHmpTrackMatchingDistParam(ipar); //prevision: distance cut is function of momentum | |
603 | distCut=distParams[0]+distParams[1]*TMath::Power(distParams[2]*pTrk->GetP(),distParams[3]); //prevision: change functional form to be more precise | |
604 | } | |
605 | } | |
606 | else {distCut=pParam->DistCut();} | |
607 | ||
608 | if(dmin < distCut) { | |
609 | isOkDcut = kTRUE; | |
610 | } | |
611 | ||
612 | if(!isOkDcut) { | |
613 | pTrk->SetHMPIDsignal(pParam->kMipDistCut); //closest cluster with enough charge is still too far from intersection | |
614 | } | |
615 | ||
616 | if(isOkQcut*isOkDcut) isMatched = kTRUE; // MIP-Track matched !! | |
617 | ||
618 | if(!isMatched) {delete hmpTrk;hmpTrk=0x0;continue;} // If matched continue... | |
619 | ||
620 | Bool_t isOk = hmpTrk->Update(bestHmpCluster,0.1,0); | |
621 | if(!isOk) {delete hmpTrk;hmpTrk=0x0;continue;} | |
622 | pTrk->SetOuterHmpParam(hmpTrk,AliESDtrack::kHMPIDout); | |
623 | ||
624 | FillResiduals(hmpTrk,bestHmpCluster,kFALSE); | |
625 | ||
626 | Int_t iRad = pParam->Radiator(yRa); //evaluate the radiator involved | |
627 | ||
628 | //evaluate nMean | |
629 | if(tsRight){ | |
630 | if(pNmean->GetEntries()==21) { //for backward compatibility | |
631 | nmean=((TF1*)pNmean->At(3*ipCh))->Eval(ts); //C6F14 Nmean for this chamber | |
632 | } else { | |
633 | if(iRad < 0) { | |
634 | nmean = -1; | |
635 | } else { | |
636 | Double_t tLow = ((TF1*)pNmean->At(6*ipCh+2*iRad ))->Eval(ts); //C6F14 low temp for this chamber | |
637 | Double_t tHigh = ((TF1*)pNmean->At(6*ipCh+2*iRad+1))->Eval(ts); //C6F14 high temp for this chamber | |
638 | Double_t tExp = pParam->FindTemp(tLow,tHigh,yRa); //estimated temp for that chamber at that y | |
639 | nmean = pParam->NIdxRad(AliHMPIDParam::Instance()->GetEPhotMean(),tExp); //mean ref idx @ a given temp | |
640 | } | |
641 | if(nmean < 0){ //track didn' t pass through the radiator | |
642 | pTrk->SetHMPIDsignal(AliHMPIDRecon::kNoRad); //set the appropriate flag | |
643 | pTrk->SetHMPIDcluIdx(ipCh,index+1000*cluSiz); //set index of cluster | |
644 | delete hmpTrk;hmpTrk=0x0; | |
645 | continue; | |
646 | } | |
647 | } | |
648 | } else nmean = pParam->MeanIdxRad(); | |
649 | ||
650 | // | |
651 | recon.SetImpPC(xPc,yPc); //store track impact to PC | |
652 | recon.CkovAngle(pTrk,(TClonesArray *)pClus->At(ipCh),index,nmean,xRa,yRa); //search for Cerenkov angle of this track | |
653 | ||
654 | if(pTrk->GetHMPIDsignal()<0) {delete hmpTrk;hmpTrk=0x0;continue;} | |
655 | ||
656 | AliHMPIDPid pID; | |
657 | Double_t prob[5]; | |
658 | pID.FindPid(pTrk,nmean,5,prob); | |
659 | // Printf("Tracker RefIndex = %f, chmaber = %i, prob1 = %f, prob2 = %f, prob3 = %f, prob4 = %f, prob5 = %f", nmean,ipCh,prob[0],prob[1],prob[2],prob[3],prob[4]); | |
660 | pTrk->SetHMPIDpid(prob); | |
661 | delete hmpTrk;hmpTrk=0x0; | |
662 | }//iTrk | |
663 | ||
664 | return 0; // error code: 0=no error; | |
665 | }//ReconFromKin() | |
666 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ | |
9785d5fb | 667 | Int_t AliHMPIDTracker::ReconHiddenTrk(AliESDEvent *pEsd,TObjArray *pClus,TObjArray *pNmean, TObjArray *pQthre) |
611e810d | 668 | { |
669 | // Static method to reconstruct Theta Ckov for all valid tracks of a given event. | |
afe12692 | 670 | // Arguments: pEsd- pointer ESD; pClu- pointer to clusters for all chambers; pNmean - pointer to all function Nmean=f(time), pQthre - pointer to all function Qthre=f(time) |
611e810d | 671 | // Returns: error code, 0 if no errors |
9785d5fb | 672 | |
673 | AliHMPIDReconHTA reconHTA; //instance of reconstruction class, nothing important in ctor | |
674 | ||
675 | AliHMPIDParam *pParam = AliHMPIDParam::Instance(); //Instance of AliHMPIDParam | |
15f675cb | 676 | |
677 | Bool_t tsRight = kTRUE; | |
678 | ||
3e630437 | 679 | UInt_t tsmin = (UInt_t)((TF1*)pQthre->At(0))->GetXmin(); // |
680 | UInt_t tsmax = (UInt_t)((TF1*)pQthre->At(0))->GetXmax(); // | |
681 | UInt_t ts = pEsd->GetTimeStamp(); | |
682 | ||
683 | if(ts<tsmin || ts>tsmax) { | |
684 | AliWarning(Form(" in HMPID time stamp out of range!!! Please check!!! ts = %i",ts)); | |
15f675cb | 685 | tsRight = kFALSE; |
3e630437 | 686 | } |
687 | ||
9785d5fb | 688 | for(Int_t iTrk=0;iTrk<pEsd->GetNumberOfTracks();iTrk++){ //loop on the ESD tracks in the event |
689 | ||
690 | AliESDtrack *pTrk = pEsd->GetTrack(iTrk); //here it is simulated or just empty track | |
691 | Int_t ipCh; | |
692 | ipCh = pTrk->GetHMPIDcluIdx();ipCh/=1000000; | |
693 | if(ipCh<0) continue; | |
694 | ||
695 | TClonesArray *pMipCluLst=(TClonesArray *)pClus->At(ipCh); //get the list of clusters | |
696 | Int_t nMipClusTot = pMipCluLst->GetEntries(); //total number of clusters in the given chamber | |
697 | ||
698 | Double_t qMip=-1; | |
699 | Int_t chMip=-1; | |
ee2f3539 | 700 | Double_t xMip = 0; |
701 | Double_t yMip = 0; | |
702 | Int_t indMip = 0; | |
703 | Int_t cluMipSiz = 0; | |
9785d5fb | 704 | |
705 | for (Int_t iClu=0; iClu<nMipClusTot;iClu++) { //clusters loop | |
706 | ||
707 | AliHMPIDCluster *pClu=(AliHMPIDCluster*)pMipCluLst->UncheckedAt(iClu); //get the cluster | |
708 | Double_t qClus = pClu->Q(); | |
709 | if(qClus>qMip) { | |
710 | qMip = qClus; | |
711 | chMip = pClu->Ch(); | |
712 | xMip = pClu->X(); | |
713 | yMip = pClu->Y(); | |
714 | indMip = iClu; | |
715 | cluMipSiz = pClu->Size(); | |
716 | } | |
717 | }//clus loop | |
718 | ||
719 | if(chMip<0) return 1; | |
720 | ||
721 | Int_t hvsec; | |
ee2f3539 | 722 | Double_t qthre=0; |
15f675cb | 723 | |
9785d5fb | 724 | // evaluate qThre |
15f675cb | 725 | if(tsRight){ |
9785d5fb | 726 | if(pQthre->GetEntriesFast()==pParam->kMaxCh+1) { // just for backward compatibility |
3e630437 | 727 | qthre=((TF1*)pQthre->At(chMip))->Eval(ts); // |
9785d5fb | 728 | } else { // in the past just 1 qthre |
729 | hvsec = pParam->InHVSector(yMip); // per chamber | |
3e630437 | 730 | if(hvsec>=0) qthre=((TF1*)pQthre->At(6*chMip+hvsec))->Eval(ts); // |
15f675cb | 731 | } |
732 | } else qthre = pParam->QCut(); | |
9785d5fb | 733 | // |
734 | if(qMip<qthre) { | |
3e630437 | 735 | pTrk->SetHMPIDmip(xMip,yMip,(Int_t)qMip,0); //store mip info in any case |
9785d5fb | 736 | pTrk->SetHMPIDcluIdx(chMip,indMip+1000*cluMipSiz); |
737 | pTrk->SetHMPIDsignal(pParam->kMipQdcCut); | |
738 | return 1; //charge compatible with MIP clusters | |
739 | } | |
740 | ||
741 | pTrk->SetHMPIDmip(xMip,yMip,(Int_t)qMip,0); //store mip info in any case | |
742 | pTrk->SetHMPIDcluIdx(chMip,indMip+1000*cluMipSiz); | |
743 | ||
744 | Double_t yRa = yMip; //just an approx... | |
745 | Double_t nmean; | |
ddb21a01 | 746 | |
747 | Int_t iRad = pParam->Radiator(yRa); //evaluate the radiator involved | |
748 | ||
9785d5fb | 749 | //evaluate nMean |
15f675cb | 750 | if(tsRight){ |
9785d5fb | 751 | if(pNmean->GetEntries()==21) { //for backward compatibility |
3e630437 | 752 | nmean=((TF1*)pNmean->At(3*chMip))->Eval(ts); //C6F14 Nmean for this chamber |
9785d5fb | 753 | } else { |
9785d5fb | 754 | if(iRad < 0) { |
755 | nmean = -1; | |
756 | } else { | |
3e630437 | 757 | Double_t tLow = ((TF1*)pNmean->At(6*chMip+2*iRad ))->Eval(ts); //C6F14 low temp for this chamber |
758 | Double_t tHigh = ((TF1*)pNmean->At(6*chMip+2*iRad+1))->Eval(ts); //C6F14 high temp for this chamber | |
9785d5fb | 759 | Double_t tExp = pParam->FindTemp(tLow,tHigh,yRa); //estimated temp for that chamber at that y |
760 | nmean = pParam->NIdxRad(AliHMPIDParam::Instance()->GetEPhotMean(),tExp); //mean ref idx @ a given temp | |
761 | } | |
762 | if(nmean < 0){ //track didn' t pass through the radiator | |
763 | pTrk->SetHMPIDsignal(AliHMPIDRecon::kNoRad); //set the appropriate flag | |
764 | return 1; | |
15f675cb | 765 | } |
766 | } | |
767 | } else nmean = pParam->MeanIdxRad(); | |
9785d5fb | 768 | // |
ee2f3539 | 769 | if(!reconHTA.CkovHiddenTrk(pTrk,(TClonesArray *)pClus->At(ipCh),indMip,nmean)) { //search for track parameters and Cerenkov angle of this track |
770 | AliHMPIDPid pID; | |
771 | Double_t prob[5]; | |
b7a2d22d | 772 | pID.FindPid(pTrk,nmean,5,prob); |
ee2f3539 | 773 | pTrk->SetHMPIDpid(prob); |
774 | } | |
e56b695f | 775 | // Printf(" Prob e- %6.2f mu %6.2f pi %6.2f k %6.2f p %6.2f",prob[0]*100,prob[1]*100,prob[2]*100,prob[3]*100,prob[4]*100); |
9785d5fb | 776 | }//iTrk |
777 | ||
778 | return 0; // error code: 0=no error; | |
779 | ||
611e810d | 780 | }//Recon() |
d3da6dc4 | 781 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
c1af14f7 | 782 | void AliHMPIDTracker::FillClusterArray(TObjArray* array) const { |
783 | ||
784 | // Publishes all pointers to clusters known to the tracker into the | |
785 | // passed object array. | |
786 | // The ownership is not transfered - the caller is not expected to delete | |
787 | // the clusters | |
788 | ||
789 | for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++){ | |
790 | TClonesArray *pCluArr=(TClonesArray*)(*fClu)[iCh]; | |
791 | for (Int_t iClu=0; iClu<pCluArr->GetEntriesFast();iClu++){ | |
792 | AliHMPIDCluster *pClu=(AliHMPIDCluster*)pCluArr->UncheckedAt(iClu); | |
793 | array->AddLast(pClu); | |
794 | }//cluster loop in iCh | |
795 | pCluArr->Delete(); | |
796 | }//Ch loop | |
797 | ||
798 | return; | |
799 | } | |
800 | //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |