Line data Source code
1 : #include "AliHMPIDTracker.h" //class header
2 : #include "AliHMPIDtrack.h" //class header
3 : #include "AliHMPIDCluster.h" //GetTrackPoint(),PropagateBack()
4 : #include "AliHMPIDParam.h" //GetTrackPoint(),PropagateBack()
5 : #include "AliHMPIDPid.h" //Recon(),reconHTA()
6 : #include "AliHMPIDRecon.h" //Recon()
7 : #include "AliHMPIDRecoParamV1.h" //Recon()
8 : #include "AliHMPIDReconstructor.h"//Recon()
9 : #include "AliHMPIDReconHTA.h" //ReconHTA()
10 : #include <AliLog.h> //Recon()
11 : #include <AliESDEvent.h> //PropagateBack(),Recon()
12 : #include <AliESDtrack.h> //Intersect()
13 : #include <AliTracker.h>
14 : #include <AliRun.h> //GetTrackPoint(),PropagateBack()
15 : #include <AliTrackPointArray.h> //GetTrackPoint()
16 : #include <AliAlignObj.h> //GetTrackPoint()
17 : #include <AliCDBManager.h> //PropageteBack()
18 : #include <AliCDBEntry.h> //PropageteBack()
19 : #include "TTreeStream.h" // debug streamer
20 : //
21 : // HMPID base class fo tracking
22 : //.
23 : //.
24 : //.
25 12 : ClassImp(AliHMPIDTracker)
26 : //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
27 : AliHMPIDTracker::AliHMPIDTracker():
28 2 : AliTracker(),
29 6 : fClu(new TObjArray(AliHMPIDParam::kMaxCh+1)),
30 2 : fDebugStreamer(0)
31 10 : {
32 : // ctor. Create TObjArray of TClonesArray of AliHMPIDCluster
33 : //
34 : //
35 2 : fClu->SetOwner(kTRUE);
36 74 : for(int i=AliHMPIDParam::kMinCh;i<=AliHMPIDParam::kMaxCh;i++) fClu->AddAt(new TClonesArray("AliHMPIDCluster"),i);
37 6 : fDebugStreamer = new TTreeSRedirector("HMPIDdebug.root");
38 :
39 4 : }//ctor
40 :
41 :
42 12 : AliHMPIDTracker::~AliHMPIDTracker(){
43 : //
44 : // destructor
45 : //
46 4 : delete fClu;
47 6 : if (fDebugStreamer) delete fDebugStreamer;
48 6 : }
49 :
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 16 : if(idx<0) return kFALSE; //no MIP cluster assigned to this track in PropagateBack()
59 8 : Int_t iCham=idx/1000000; Int_t iClu=idx%1000000;
60 8 : iClu = iClu%1000; //GetHMPIDcluIdx -> 1e+6*ch + 1e+3*clusize + cluIdx;
61 8 : point.SetVolumeID(AliGeomManager::LayerToVolUID(AliGeomManager::kHMPID,iCham));//layer and chamber number
62 8 : TClonesArray *pArr=(TClonesArray*)(*fClu)[iCham];
63 8 : if(!pArr) return kFALSE;
64 8 : AliHMPIDCluster *pClu=(AliHMPIDCluster*)pArr->UncheckedAt(iClu);//get pointer to cluster
65 8 : if(!pClu) return kFALSE;
66 8 : Float_t xyz[3];
67 8 : pClu->GetGlobalXYZ(xyz);
68 8 : Float_t cov[6];
69 8 : pClu->GetGlobalCov(cov);
70 8 : point.SetXYZ(xyz,cov);
71 : return kTRUE;
72 16 : }//GetTrackPoint()
73 : //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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)
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
79 268 : AliHMPIDtrack *hmpTrk = new AliHMPIDtrack(*pTrk); //create a hmpid track to be used for propagation and matching
80 2086 : for(Int_t i=AliHMPIDParam::kMinCh;i<=AliHMPIDParam::kMaxCh;i++){ //chambers loop
81 866 : Int_t chInt = IntTrkCha(i,hmpTrk,xPc,yPc,xRa,yRa,theta,phi);
82 914 : if(chInt>=0) {delete hmpTrk;hmpTrk=0x0;return chInt;}
83 850 : } //chambers loop
84 236 : delete hmpTrk; hmpTrk=0x0;
85 118 : return -1; //no intersection with HMPID chambers
86 134 : }//IntTrkCha()
87 : //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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 1792 : AliHMPIDParam *pParam=AliHMPIDParam::Instance();
94 896 : Double_t p1[3],n1[3];
95 896 : pParam->Norm(ch,n1);
96 896 : pParam->Point(ch,p1,AliHMPIDParam::kRad); //point & norm for middle of radiator plane
97 896 : Double_t p2[3],n2[3];
98 896 : pParam->Norm(ch,n2);
99 896 : pParam->Point(ch,p2,AliHMPIDParam::kPc); //point & norm for entrance to PC plane
100 1278 : if(pTrk->Intersect(p1,n1)==kFALSE) return -1; //try to intersect track with the middle of radiator
101 516 : if(pTrk->Intersect(p2,n2)==kFALSE) return -1;
102 512 : pParam->Mars2LorsVec(ch,n1,theta,phi); //track angles at RAD
103 512 : pParam->Mars2Lors (ch,p1,xRa,yRa); //TRKxRAD position
104 512 : pParam->Mars2Lors (ch,p2,xPc,yPc); //TRKxPC position
105 558 : if(AliHMPIDParam::IsInside(xPc,yPc,pParam->DistCut())==kTRUE) return ch; //return intersected chamber
106 466 : return -1; //no intersection with HMPID chambers
107 896 : }//IntTrkCha()
108 : //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
109 : Int_t AliHMPIDTracker::LoadClusters(TTree *pCluTree)
110 : {
111 : // Interface callback methode invoked from AliReconstruction::RunTracking() to load HMPID clusters before PropagateBack() gets control. Done once per event.
112 : // Arguments: pCluTree- pointer to clusters tree got by AliHMPIDLoader::LoadRecPoints("read") then AliHMPIDLoader::TreeR()
113 : // Returns: error code (currently ignored in AliReconstruction::RunTraking())
114 136 : for(int i=AliHMPIDParam::kMinCh;i<=AliHMPIDParam::kMaxCh;i++) pCluTree->SetBranchAddress(Form("HMPID%d",i),&((*fClu)[i]));
115 8 : pCluTree->GetEntry(0);
116 8 : return 0;
117 : }//LoadClusters()
118 : //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
119 : Int_t AliHMPIDTracker::PropagateBack(AliESDEvent *pEsd)
120 : {
121 : // Interface pure virtual in AliTracker. Invoked from AliReconstruction::RunTracking() after invocation of AliTracker::LoadClusters() once per event
122 : // Agruments: pEsd - pointer to ESD
123 : // Returns: error code
124 24 : AliCDBEntry *pNmeanEnt =AliCDBManager::Instance()->Get("HMPID/Calib/Nmean"); //contains TObjArray of 42 TF1 + 1 EPhotMean
125 16 : AliCDBEntry *pQthreEnt =AliCDBManager::Instance()->Get("HMPID/Calib/Qthre"); //contains TObjArray of 42 (7ch * 6sec) TF1
126 8 : if(!pNmeanEnt) AliError("No Nmean C6F14 ");
127 8 : if(!pQthreEnt) AliError("No Qthre");
128 :
129 8 : return Recon(pEsd,fClu,(TObjArray*)pNmeanEnt->GetObject(),(TObjArray*)pQthreEnt->GetObject());
130 0 : }//PropagateBack()
131 : //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
132 : Int_t AliHMPIDTracker::Recon(AliESDEvent *pEsd,TObjArray *pClus,TObjArray *pNmean, TObjArray *pQthre)
133 : {
134 : // Static method to reconstruct the Cherenkov angle for all valid tracks of a given event.
135 : // Arguments: pEsd- pointer ESD; pClu- pointer to clusters for all chambers; pNmean - pointer to all function Nmean=f(time)
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
150 16 : AliHMPIDRecon recon; //instance of reconstruction class, nothing important in ctor
151 8 : AliHMPIDParam *pParam = AliHMPIDParam::Instance(); //Instance of AliHMPIDParam
152 8 : Float_t xPc,yPc,xRa,yRa,theta,phi;
153 :
154 : Double_t cluLORS[2]={0};
155 : Int_t nMipClusTot=0;
156 :
157 : Double_t qthre = 0; Double_t nmean=0; Int_t hvsec=0;
158 : // Int_t nClusCh[AliHMPIDParam::kMaxCh+1];
159 :
160 : Bool_t tsRight = kTRUE;
161 :
162 24 : UInt_t tsmin = (UInt_t)((TF1*)pQthre->At(0))->GetXmin(); //
163 24 : UInt_t tsmax = (UInt_t)((TF1*)pQthre->At(0))->GetXmax(); //
164 8 : UInt_t ts = pEsd->GetTimeStamp();
165 :
166 16 : if(ts<tsmin || ts>tsmax) {
167 0 : AliWarning(Form(" in HMPID time stamp out of range!!! Please check!!! ts = %i",ts));
168 : tsRight = kFALSE;
169 0 : }
170 :
171 480 : for(Int_t iTrk=0;iTrk<pEsd->GetNumberOfTracks();iTrk++){ //loop on the ESD tracks in the event
172 :
173 : // Double_t bestChi2=99999;chi2=99999; //init. track matching params
174 : // Double_t dmin=999999,bz=0,distCut=1,distParams[5]={1};
175 152 : Double_t dmin=999999,distCut=1,distParams[5]={1};
176 :
177 : Bool_t isOkDcut=kFALSE;
178 : Bool_t isOkQcut=kFALSE;
179 : Bool_t isMatched=kFALSE;
180 :
181 : AliHMPIDCluster *bestHmpCluster=0x0; //the best matching cluster
182 152 : AliESDtrack *pTrk = pEsd->GetTrack(iTrk); //get reconstructed track
183 :
184 322 : if(!pTrk->IsOn(AliESDtrack::kTPCout)) continue;
185 :
186 268 : if(pTrk->IsOn(AliESDtrack::kTPCrefit)) continue;
187 134 : AliESDfriendTrack *ftrack= (AliESDfriendTrack *)pTrk->GetFriendTrack();
188 134 : if (!ftrack) continue;
189 268 : if (!ftrack->GetTPCOut()) continue;
190 268 : AliHMPIDtrack *hmpTrk = new AliHMPIDtrack(*pTrk); //create a hmpid track to be used for propagation and matching
191 : AliHMPIDtrack *hmpTrkConstrained = 0; //create a hmpid track to be used for propagation and matching
192 1072 : hmpTrk->Set(ftrack->GetTPCOut()->GetX(), ftrack->GetTPCOut()->GetAlpha(),ftrack->GetTPCOut()->GetParameter(), ftrack->GetTPCOut()->GetCovariance());
193 : //
194 : //bz=AliTracker::GetBz();
195 :
196 : //initial flags for HMPID ESD infos
197 134 : pTrk->SetHMPIDtrk(0,0,0,0); //no intersection found
198 134 : pTrk->SetHMPIDmip(0,0,0,0); //store mip info in any case
199 134 : pTrk->SetHMPIDcluIdx(99,99999); //chamber not found, mip not yet considered
200 134 : pTrk->SetHMPIDsignal(AliHMPIDRecon::kNotPerformed); //ring reconstruction not yet performed
201 :
202 134 : Int_t ipCh=IntTrkCha(pTrk,xPc,yPc,xRa,yRa,theta,phi); //find the intersected chamber for this track
203 488 : if(ipCh<0) {delete hmpTrk;hmpTrk=0x0;continue;} //no intersection at all, go after next track
204 :
205 16 : pTrk->SetHMPIDtrk(xPc,yPc,theta,phi); //store initial infos
206 16 : pTrk->SetHMPIDcluIdx(ipCh,9999); //set chamber, index of cluster + cluster size
207 :
208 : // track intersects the chamber ipCh: find the MIP
209 :
210 32 : TClonesArray *pMipCluLst=(TClonesArray *)pClus->At(ipCh); //get the list of clusters
211 16 : nMipClusTot = pMipCluLst->GetEntries(); //total number of clusters in the given chamber
212 : // nClusCh[ipCh] = nMipClusTot;
213 :
214 19 : if(nMipClusTot==0) {delete hmpTrk;hmpTrk=0x0;continue;}
215 :
216 : Int_t index=-1; //index of the "best" matching cluster
217 : //
218 : // 1. Find the closest MIP cluster using fast tracks extrapolation method
219 : //
220 572 : for (Int_t iClu=0; iClu<nMipClusTot;iClu++) { //clusters loop
221 :
222 271 : AliHMPIDCluster *pClu=(AliHMPIDCluster*)pMipCluLst->UncheckedAt(iClu); //get the cluster
223 : // evaluate qThre
224 271 : if(tsRight){
225 542 : if(pQthre->GetEntriesFast()==pParam->kMaxCh+1) {
226 0 : qthre=((TF1*)pQthre->At(pClu->Ch()))->Eval(ts); //
227 0 : } else { // in the past just 1 qthre
228 271 : hvsec = pParam->InHVSector(pClu->Y()); // per chamber
229 1069 : if(hvsec>=0) qthre=((TF1*)pQthre->At(6*ipCh+hvsec))->Eval(ts); //
230 : }
231 0 : } else qthre = pParam->QCut();
232 :
233 : //
234 488 : if(pClu->Q()<qthre) continue; //charge compartible with MIP clusters
235 : isOkQcut = kTRUE;
236 : //
237 54 : cluLORS[0]=pClu->X(); cluLORS[1]=pClu->Y(); //get the LORS coordinates of the cluster
238 54 : Double_t dist = TMath::Sqrt((xPc-cluLORS[0])*(xPc-cluLORS[0])+(yPc-cluLORS[1])*(yPc-cluLORS[1]));
239 :
240 54 : if(dist<dmin) {
241 : dmin = dist;
242 : index=iClu;
243 : bestHmpCluster=pClu;
244 23 : }
245 54 : } // clusters loop
246 :
247 : // moved down
248 : /*if(!isOkQcut) {
249 : pTrk->SetHMPIDsignal(pParam->kMipQdcCut);
250 : delete hmpTrk;hmpTrk=0x0; continue;
251 : }*/
252 :
253 : //
254 : // 2. Propagate track to the MIP cluster using the STEER method
255 : //
256 :
257 15 : if(!bestHmpCluster) {delete hmpTrk;hmpTrk=0x0; delete hmpTrkConstrained;hmpTrkConstrained=0x0; continue;}
258 :
259 15 : TVector3 vG = pParam->Lors2Mars(ipCh,bestHmpCluster->X(),bestHmpCluster->Y());
260 30 : Double_t gx = vG[0];
261 30 : Double_t gy = vG[1];
262 30 : Double_t gz = vG[2];
263 15 : Double_t alpha=TMath::ATan2(gy,gx);
264 15 : Double_t radiusH=TMath::Sqrt(gy*gy+gx*gx);
265 30 : if (!(hmpTrk->Rotate(alpha,kTRUE))) continue;
266 45 : if(!AliTrackerBase::PropagateTrackToBxByBz(hmpTrk,radiusH,pTrk->GetMass(),1,kFALSE,kMaxSnp,-1)) {delete hmpTrk;hmpTrk=0x0; delete hmpTrkConstrained;hmpTrkConstrained=0x0; continue;}
267 : //
268 : // 3. Update the track with MIP cluster (Improved angular and position resolution - to be used for Cherenkov angle calculation)
269 : //
270 15 : AliExternalTrackParam trackC(*hmpTrk);
271 15 : Double_t posC[2]={0,gz};
272 15 : Double_t covC[3]={0.1*0.1, 0, 0.1*0.1};
273 15 : trackC.Update(posC,covC);
274 : //
275 : // 4. Propagate back the constrained track to the radiator radius ( not exact yet)
276 : //
277 30 : hmpTrkConstrained = new AliHMPIDtrack(*pTrk);
278 15 : hmpTrkConstrained->Set(trackC.GetX(), trackC.GetAlpha(),trackC.GetParameter(), trackC.GetCovariance());
279 45 : if(!AliTrackerBase::PropagateTrackToBxByBz(hmpTrkConstrained,radiusH-kdRadiator,pTrk->GetMass(),1,kFALSE,kMaxSnp,1)) {delete hmpTrk;hmpTrk=0x0; delete hmpTrkConstrained;hmpTrkConstrained=0x0;continue;}
280 : //
281 : // 5. Propagation in the last 10 cm with the fast method
282 : //
283 15 : Float_t xPc0=0, yPc0=0;
284 :
285 15 : IntTrkCha(ipCh, hmpTrk, xPc0,yPc0,xRa,yRa,theta,phi);
286 15 : IntTrkCha(ipCh, hmpTrkConstrained, xPc,yPc,xRa,yRa,theta,phi);
287 : //
288 : // 6. Set ESDtrack information
289 : //
290 15 : Int_t cluSiz = bestHmpCluster->Size();
291 15 : pTrk->SetHMPIDmip(bestHmpCluster->X(),bestHmpCluster->Y(),(Int_t)bestHmpCluster->Q(),0); //store mip info in any case
292 15 : pTrk->SetHMPIDcluIdx(ipCh,index+1000*cluSiz); //set chamber, index of cluster + cluster size
293 15 : pTrk->SetHMPIDtrk(xPc0,yPc0,theta,phi);
294 : //
295 : //
296 : // Dump debug info if specified
297 : //
298 15 : if (AliHMPIDReconstructor::StreamLevel()>0) {
299 0 : AliExternalTrackParam * trackTPC=new AliExternalTrackParam(*(ftrack->GetTPCOut()));
300 0 : AliExternalTrackParam * trackCurrent=new AliExternalTrackParam(*pTrk);
301 0 : if(!trackTPC->Rotate(alpha)) continue;
302 0 : if(!trackCurrent->Rotate(alpha)) continue;
303 0 : Bool_t statusTPC= AliTracker::PropagateTrackToBxByBz(trackTPC,radiusH,pTrk->GetMass(),1,kFALSE,kMaxSnp,-1);
304 0 : Bool_t statusCurrent=AliTracker::PropagateTrackToBxByBz(trackCurrent,radiusH,pTrk->GetMass(),1,kFALSE,kMaxSnp,-1);
305 0 : AliExternalTrackParam * trackTPCNB=new AliExternalTrackParam(*(ftrack->GetTPCOut()));
306 0 : if(!trackTPCNB->Rotate(alpha)) continue;
307 : Bool_t statusTPCNB=kTRUE;
308 0 : Double_t bfield[3]={0,0,0};
309 0 : for (Double_t radius=trackTPCNB->GetX(); radius<radiusH; radius+=1){
310 0 : Double_t xyz[3];
311 0 : trackTPCNB->GetXYZ(xyz);
312 0 : GetBxByBz(xyz,bfield);
313 0 : statusTPCNB&=trackTPCNB->PropagateToBxByBz(radius,bfield);
314 0 : }
315 0 : statusTPCNB&=trackTPCNB->PropagateToBxByBz(radiusH,bfield);
316 : //
317 0 : Double_t tanAlpha=TMath::Tan(TMath::ASin(trackTPC->GetSnp()));
318 0 : Double_t deltaC= trackTPC->GetC(AliTrackerBase::GetBz())-ftrack->GetTPCOut()->GetC(AliTrackerBase::GetBz());
319 : //
320 0 : AliExternalTrackParam * trackTPCConstrained= new AliExternalTrackParam(*trackTPC);
321 0 : Double_t pos[2]={0,gz};
322 0 : Double_t cov[3]={0.1*0.1, 0, 0.1*0.1};
323 0 : Double_t chi2C = trackTPCConstrained->GetPredictedChi2(pos,cov);
324 0 : trackTPCConstrained->Update(pos,cov);
325 0 : (*fDebugStreamer)<<"track"<<
326 0 : "rH="<<radiusH<< // radius of cluster
327 0 : "angle="<<tanAlpha<< // tan of the local inlination angle
328 0 : "dC="<<deltaC<< // delta of the curvature
329 0 : "trackTPC.="<<trackTPC<< // TPC outer param extrapolated to the HMPID
330 0 : "trackTPCNB.="<<trackTPCNB<< // TPC track prpagated with material budget correction
331 0 : "chi2C="<<chi2C<<
332 0 : "trackTPCC.="<<trackTPCConstrained<< // TPC outer param extrapolated to the HMPID constrained
333 0 : "trackCurrent.="<<trackCurrent<< // current track extrapolated to the HMPID
334 0 : "sTPC="<<statusTPC<< // status for the current TPC track
335 0 : "sCurrent="<<statusCurrent<< // status for the current global track
336 0 : "cl.="<<bestHmpCluster<< // HMPID cluster
337 : //
338 0 : "t.="<<pTrk<< // curent esd track
339 0 : "ft.="<<ftrack<< // friend track
340 0 : "hmpTrk.="<<hmpTrk<< // hmpid tracks as used in the following code
341 0 : "hmpTrkC.="<<hmpTrkConstrained<< // constrained hmpid tracks as used in the following code
342 0 : "gx="<<gx<< // global cluster position X
343 0 : "gy="<<gy<< // Y
344 0 : "gz="<<gz<< // Z
345 : "\n";
346 0 : }
347 : //
348 : //
349 : //
350 15 : if(!isOkQcut) {
351 0 : pTrk->SetHMPIDsignal(pParam->kMipQdcCut);
352 0 : delete hmpTrk;hmpTrk=0x0;
353 0 : delete hmpTrkConstrained;hmpTrkConstrained=0x0;
354 0 : continue;
355 : }
356 :
357 30 : if(AliHMPIDReconstructor::GetRecoParam()) //retrieve distance cut
358 : {
359 30 : if(AliHMPIDReconstructor::GetRecoParam()->IsFixedDistCut()==kTRUE) //distance cut is fixed number
360 : {
361 30 : distCut=AliHMPIDReconstructor::GetRecoParam()->GetHmpTrackMatchingDist();
362 15 : }
363 : else
364 : {
365 0 : for(Int_t ipar=0;ipar<5;ipar++) distParams[ipar]=AliHMPIDReconstructor::GetRecoParam()->GetHmpTrackMatchingDistParam(ipar); //prevision: distance cut is function of momentum
366 0 : distCut=distParams[0]+distParams[1]*TMath::Power(distParams[2]*pTrk->GetP(),distParams[3]); //prevision: change functional form to be more precise
367 : }
368 : }
369 0 : else {distCut=pParam->DistCut();}
370 :
371 : //dmin recalculated
372 :
373 15 : dmin = TMath::Sqrt((xPc0-bestHmpCluster->X())*(xPc0-bestHmpCluster->X())+(yPc0-bestHmpCluster->Y())*(yPc0-bestHmpCluster->Y()));
374 :
375 15 : if(dmin < distCut) {
376 : isOkDcut = kTRUE;
377 8 : }
378 : //isOkDcut = kTRUE; // switch OFF cut
379 :
380 15 : if(!isOkDcut) {
381 7 : pTrk->SetHMPIDsignal(pParam->kMipDistCut); //closest cluster with enough charge is still too far from intersection
382 7 : }
383 :
384 23 : if(isOkQcut*isOkDcut) isMatched = kTRUE; // MIP-Track matched !!
385 :
386 50 : if(!isMatched) {delete hmpTrk;hmpTrk=0x0;delete hmpTrkConstrained;hmpTrkConstrained=0x0;continue;} // If matched continue...
387 :
388 : Bool_t isOk = kTRUE;
389 8 : if(!isOk) {delete hmpTrk;hmpTrk=0x0; delete hmpTrkConstrained;hmpTrkConstrained=0x0; continue;}
390 8 : pTrk->SetOuterHmpParam(hmpTrkConstrained,AliESDtrack::kHMPIDout);
391 :
392 8 : FillResiduals(hmpTrk,bestHmpCluster,kFALSE);
393 :
394 8 : Int_t iRad = pParam->Radiator(yRa); //evaluate the radiator involved
395 :
396 : //evaluate nMean
397 8 : if(tsRight){
398 16 : if(pNmean->GetEntries()==21) { //for backward compatibility
399 0 : nmean=((TF1*)pNmean->At(3*ipCh))->Eval(ts); //C6F14 Nmean for this chamber
400 0 : } else {
401 8 : if(iRad < 0) {
402 : nmean = -1;
403 0 : } else {
404 16 : Double_t tLow = ((TF1*)pNmean->At(6*ipCh+2*iRad ))->Eval(ts); //C6F14 low temp for this chamber
405 16 : Double_t tHigh = ((TF1*)pNmean->At(6*ipCh+2*iRad+1))->Eval(ts); //C6F14 high temp for this chamber
406 8 : Double_t tExp = pParam->FindTemp(tLow,tHigh,yRa); //estimated temp for that chamber at that y
407 16 : nmean = pParam->NIdxRad(AliHMPIDParam::Instance()->GetEPhotMean(),tExp); //mean ref idx @ a given temp
408 : }
409 8 : if(nmean < 0){ //track didn' t pass through the radiator
410 0 : pTrk->SetHMPIDsignal(AliHMPIDRecon::kNoRad); //set the appropriate flag
411 0 : pTrk->SetHMPIDcluIdx(ipCh,index+1000*cluSiz); //set index of cluster
412 0 : delete hmpTrk;hmpTrk=0x0;
413 0 : delete hmpTrkConstrained;hmpTrkConstrained=0x0;
414 0 : continue;
415 : }
416 : }
417 0 : } else nmean = pParam->MeanIdxRad();
418 : //
419 : // 7. Calculate the Cherenkov angle
420 : //
421 8 : recon.SetImpPC(xPc0,yPc0); //store track impact to PC
422 16 : recon.CkovAngle(pTrk,(TClonesArray *)pClus->At(ipCh),index,nmean,xRa,yRa); //search for Cerenkov angle of this track
423 :
424 16 : Double_t thetaCkov = pTrk->GetHMPIDsignal();
425 :
426 8 : if (AliHMPIDReconstructor::StreamLevel()>0) {
427 0 : AliExternalTrackParam * trackTPC=new AliExternalTrackParam(*(ftrack->GetTPCOut()));
428 0 : AliExternalTrackParam * trackCurrent=new AliExternalTrackParam(*pTrk);
429 0 : if(!trackTPC->Rotate(alpha)) continue;
430 0 : if(!trackCurrent->Rotate(alpha)) continue;
431 0 : Bool_t statusTPC= AliTracker::PropagateTrackToBxByBz(trackTPC,radiusH,pTrk->GetMass(),1,kFALSE,kMaxSnp,-1);
432 0 : Bool_t statusCurrent=AliTracker::PropagateTrackToBxByBz(trackCurrent,radiusH,pTrk->GetMass(),1,kFALSE,kMaxSnp,-1);
433 0 : Double_t tanAlpha=TMath::Tan(TMath::ASin(trackTPC->GetSnp()));
434 0 : Double_t deltaC= trackTPC->GetC(AliTrackerBase::GetBz())-ftrack->GetTPCOut()->GetC(AliTrackerBase::GetBz());
435 : //
436 0 : AliExternalTrackParam * trackTPCNB=new AliExternalTrackParam(*(ftrack->GetTPCOut()));
437 0 : if(!trackTPCNB->Rotate(alpha)) continue;
438 : Bool_t statusTPCNB=kTRUE;
439 0 : Double_t bfield[3]={0,0,0};
440 0 : for (Double_t radius=trackTPCNB->GetX(); radius<radiusH; radius+=1){
441 0 : Double_t xyz[3];
442 0 : trackTPCNB->GetXYZ(xyz);
443 0 : GetBxByBz(xyz,bfield);
444 0 : statusTPCNB&=trackTPCNB->PropagateToBxByBz(radius,bfield);
445 0 : }
446 0 : statusTPCNB&=trackTPCNB->PropagateToBxByBz(radiusH,bfield);
447 :
448 0 : AliExternalTrackParam * trackTPCConstrained= new AliExternalTrackParam(*trackTPC);
449 0 : Double_t pos[2]={0,gz};
450 0 : Double_t cov[3]={0.1*0.1, 0, 0.1*0.1};
451 0 : Double_t chi2C = trackTPCConstrained->GetPredictedChi2(pos,cov);
452 0 : trackTPCConstrained->Update(pos,cov);
453 0 : (*fDebugStreamer)<<"track2"<<
454 0 : "rH="<<radiusH<< // radius of cluster
455 0 : "angle="<<tanAlpha<< // tan of the local inlination angle
456 0 : "dC="<<deltaC<< // delta of the curvature
457 0 : "trackTPC.="<<trackTPC<< // TPC outer param extrapolated to the HMPID
458 0 : "trackTPCNB.="<<trackTPCNB<< // TPC outer param extrapolated to the HMPID
459 0 : "chi2C="<<chi2C<<
460 0 : "trackTPCC.="<<trackTPCConstrained<< // TPC outer param extrapolated to the HMPID constrained
461 0 : "trackCurrent.="<<trackCurrent<< // current track extrapolated to the HMPID
462 0 : "sTPC="<<statusTPC<< // status for the current TPC track
463 0 : "sCurrent="<<statusCurrent<< // status for the current global track
464 0 : "cl.="<<bestHmpCluster<< // HMPID cluster
465 : //
466 0 : "t.="<<pTrk<< // curent esd track
467 0 : "ft.="<<ftrack<< // friend track
468 0 : "hmpTrk.="<<hmpTrk<< // hmpid tracks as used in the following code
469 0 : "hmpTrkC.="<<hmpTrkConstrained<< // constrained hmpid tracks as used in the following code
470 0 : "gx="<<gx<< // global cluster position X
471 0 : "gy="<<gy<< // Y
472 0 : "gz="<<gz<< // Z
473 0 : "thetaCkov="<<thetaCkov<< // Cherenkov angle
474 : "\n";
475 0 : }
476 :
477 16 : if(pTrk->GetHMPIDsignal()<0) {
478 0 : delete hmpTrk;hmpTrk=0x0;
479 0 : delete hmpTrkConstrained; hmpTrkConstrained=0x0;
480 0 : continue;}
481 :
482 8 : AliHMPIDPid pID;
483 8 : Double_t prob[5];
484 8 : pID.FindPid(pTrk,nmean,5,prob);
485 8 : pTrk->SetHMPIDpid(prob);
486 16 : delete hmpTrk; hmpTrk=0x0;
487 16 : delete hmpTrkConstrained; hmpTrkConstrained=0x0;
488 213 : }//iTrk
489 :
490 : return 0; // error code: 0=no error;
491 8 : }//Recon()
492 : //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
493 : Int_t AliHMPIDTracker::ReconFromKin(AliESDEvent *pEsd,TObjArray *pClus,TObjArray *pNmean, TObjArray *pQthre)
494 : {
495 : // Static method to reconstruct Theta Ckov for all valid tracks of a given event.
496 : // Arguments: pEsd- pointer ESD; pClu- pointer to clusters for all chambers; pNmean - pointer to all function Nmean=f(time)
497 : // Returns: error code, 0 if no errors
498 :
499 0 : AliHMPIDRecon recon; //instance of reconstruction class, nothing important in ctor
500 0 : AliHMPIDParam *pParam = AliHMPIDParam::Instance(); //Instance of AliHMPIDParam
501 0 : Float_t xPc,yPc,xRa,yRa,theta,phi;
502 : Double_t cluLORS[2]={0};
503 : Int_t nMipClusTot=0;
504 : Double_t qthre = 0; Double_t nmean=0; Int_t hvsec=0;
505 : //Int_t nClusCh[AliHMPIDParam::kMaxCh+1];
506 :
507 : Bool_t tsRight = kTRUE;
508 :
509 0 : UInt_t tsmin = (UInt_t)((TF1*)pQthre->At(0))->GetXmin(); //
510 0 : UInt_t tsmax = (UInt_t)((TF1*)pQthre->At(0))->GetXmax(); //
511 0 : UInt_t ts = pEsd->GetTimeStamp();
512 :
513 0 : if(ts<tsmin || ts>tsmax) {
514 0 : AliWarning(Form(" in HMPID time stamp out of range!!! Please check!!! ts = %i",ts));
515 : tsRight = kFALSE;
516 0 : }
517 :
518 0 : for(Int_t iTrk=0;iTrk<pEsd->GetNumberOfTracks();iTrk++){ //loop on the ESD tracks in the event
519 :
520 0 : Double_t dmin=999999,distCut=1,distParams[5]={1};
521 :
522 : Bool_t isOkDcut=kFALSE;
523 : Bool_t isOkQcut=kFALSE;
524 : Bool_t isMatched=kFALSE;
525 :
526 : AliHMPIDCluster *bestHmpCluster=0x0; //the best matching cluster
527 0 : AliESDtrack *pTrk = pEsd->GetTrack(iTrk); //get reconstructed track
528 :
529 0 : AliHMPIDtrack *hmpTrk = new AliHMPIDtrack(*pTrk); //create a hmpid track to be used for propagation and matching
530 : // bz=AliTracker::GetBz();
531 : //initial flags for HMPID ESD infos
532 0 : pTrk->SetHMPIDtrk(0,0,0,0); //no intersection found
533 0 : pTrk->SetHMPIDmip(0,0,0,0); //store mip info in any case
534 0 : pTrk->SetHMPIDcluIdx(99,99999); //chamber not found, mip not yet considered
535 0 : pTrk->SetHMPIDsignal(AliHMPIDRecon::kNotPerformed); //ring reconstruction not yet performed
536 :
537 0 : Int_t ipCh=IntTrkCha(pTrk,xPc,yPc,xRa,yRa,theta,phi); //find the intersected chamber for this track
538 0 : if(ipCh<0) {delete hmpTrk;hmpTrk=0x0;continue;} //no intersection at all, go after next track
539 :
540 0 : pTrk->SetHMPIDtrk(xPc,yPc,theta,phi); //store initial infos
541 0 : pTrk->SetHMPIDcluIdx(ipCh,9999); //set chamber, index of cluster + cluster size
542 :
543 : // track intersects the chamber ipCh: find the MIP
544 :
545 0 : TClonesArray *pMipCluLst=(TClonesArray *)pClus->At(ipCh); //get the list of clusters
546 0 : nMipClusTot = pMipCluLst->GetEntries(); //total number of clusters in the given chamber
547 : // nClusCh[ipCh] = nMipClusTot;
548 :
549 0 : if(nMipClusTot==0) {delete hmpTrk;hmpTrk=0x0;continue;}
550 :
551 : Int_t index=-1; //index of the "best" matching cluster
552 :
553 0 : for (Int_t iClu=0; iClu<nMipClusTot;iClu++) { //clusters loop
554 :
555 0 : AliHMPIDCluster *pClu=(AliHMPIDCluster*)pMipCluLst->UncheckedAt(iClu); //get the cluster
556 : // evaluate qThre
557 0 : if(tsRight){
558 0 : if(pQthre->GetEntriesFast()==pParam->kMaxCh+1) {
559 0 : qthre=((TF1*)pQthre->At(pClu->Ch()))->Eval(ts); //
560 0 : } else { // in the past just 1 qthre
561 0 : hvsec = pParam->InHVSector(pClu->Y()); // per chamber
562 0 : if(hvsec>=0) qthre=((TF1*)pQthre->At(6*ipCh+hvsec))->Eval(ts); //
563 : }
564 0 : } else qthre = pParam->QCut();
565 :
566 : //
567 0 : if(pClu->Q()<qthre) continue; //charge compartible with MIP clusters
568 : isOkQcut = kTRUE;
569 : //
570 0 : cluLORS[0]=pClu->X(); cluLORS[1]=pClu->Y(); //get the LORS coordinates of the cluster
571 0 : Double_t dist = TMath::Sqrt((xPc-cluLORS[0])*(xPc-cluLORS[0])+(yPc-cluLORS[1])*(yPc-cluLORS[1]));
572 :
573 0 : if(dist<dmin) {
574 : dmin = dist;
575 : index=iClu;
576 : bestHmpCluster=pClu;
577 0 : }
578 0 : } // clusters loop
579 :
580 0 : if(!isOkQcut) {
581 0 : pTrk->SetHMPIDsignal(pParam->kMipQdcCut);
582 0 : delete hmpTrk;hmpTrk=0x0; continue;
583 : }
584 :
585 0 : Double_t radius = (pParam->Lors2Mars(ipCh,pParam->SizeAllX()/2,pParam->SizeAllY()/2)).Mag();
586 :
587 0 : if(!AliTracker::PropagateTrackToBxByBz(hmpTrk,radius,pTrk->GetMass(),1,kFALSE)) {delete hmpTrk;hmpTrk=0x0;continue;}
588 :
589 0 : if(!hmpTrk->PropagateTo(bestHmpCluster)) {delete hmpTrk;hmpTrk=0x0;continue;}
590 :
591 0 : Int_t cluSiz = bestHmpCluster->Size();
592 0 : pTrk->SetHMPIDmip(bestHmpCluster->X(),bestHmpCluster->Y(),(Int_t)bestHmpCluster->Q(),0); //store mip info in any case
593 0 : pTrk->SetHMPIDcluIdx(ipCh,index+1000*cluSiz); //set chamber, index of cluster + cluster size
594 :
595 0 : if(AliHMPIDReconstructor::GetRecoParam()) //retrieve distance cut
596 : {
597 0 : if(AliHMPIDReconstructor::GetRecoParam()->IsFixedDistCut()==kTRUE) //distance cut is fixed number
598 : {
599 0 : distCut=AliHMPIDReconstructor::GetRecoParam()->GetHmpTrackMatchingDist();
600 0 : }
601 : else
602 : {
603 0 : for(Int_t ipar=0;ipar<5;ipar++) distParams[ipar]=AliHMPIDReconstructor::GetRecoParam()->GetHmpTrackMatchingDistParam(ipar); //prevision: distance cut is function of momentum
604 0 : distCut=distParams[0]+distParams[1]*TMath::Power(distParams[2]*pTrk->GetP(),distParams[3]); //prevision: change functional form to be more precise
605 : }
606 : }
607 0 : else {distCut=pParam->DistCut();}
608 :
609 0 : if(dmin < distCut) {
610 : isOkDcut = kTRUE;
611 0 : }
612 :
613 0 : if(!isOkDcut) {
614 0 : pTrk->SetHMPIDsignal(pParam->kMipDistCut); //closest cluster with enough charge is still too far from intersection
615 0 : }
616 :
617 0 : if(isOkQcut*isOkDcut) isMatched = kTRUE; // MIP-Track matched !!
618 :
619 0 : if(!isMatched) {delete hmpTrk;hmpTrk=0x0;continue;} // If matched continue...
620 :
621 0 : Bool_t isOk = hmpTrk->Update(bestHmpCluster,0.1,0);
622 0 : if(!isOk) {delete hmpTrk;hmpTrk=0x0;continue;}
623 0 : pTrk->SetOuterHmpParam(hmpTrk,AliESDtrack::kHMPIDout);
624 :
625 0 : FillResiduals(hmpTrk,bestHmpCluster,kFALSE);
626 :
627 0 : Int_t iRad = pParam->Radiator(yRa); //evaluate the radiator involved
628 :
629 : //evaluate nMean
630 0 : if(tsRight){
631 0 : if(pNmean->GetEntries()==21) { //for backward compatibility
632 0 : nmean=((TF1*)pNmean->At(3*ipCh))->Eval(ts); //C6F14 Nmean for this chamber
633 0 : } else {
634 0 : if(iRad < 0) {
635 : nmean = -1;
636 0 : } else {
637 0 : Double_t tLow = ((TF1*)pNmean->At(6*ipCh+2*iRad ))->Eval(ts); //C6F14 low temp for this chamber
638 0 : Double_t tHigh = ((TF1*)pNmean->At(6*ipCh+2*iRad+1))->Eval(ts); //C6F14 high temp for this chamber
639 0 : Double_t tExp = pParam->FindTemp(tLow,tHigh,yRa); //estimated temp for that chamber at that y
640 0 : nmean = pParam->NIdxRad(AliHMPIDParam::Instance()->GetEPhotMean(),tExp); //mean ref idx @ a given temp
641 : }
642 0 : if(nmean < 0){ //track didn' t pass through the radiator
643 0 : pTrk->SetHMPIDsignal(AliHMPIDRecon::kNoRad); //set the appropriate flag
644 0 : pTrk->SetHMPIDcluIdx(ipCh,index+1000*cluSiz); //set index of cluster
645 0 : delete hmpTrk;hmpTrk=0x0;
646 0 : continue;
647 : }
648 : }
649 0 : } else nmean = pParam->MeanIdxRad();
650 :
651 : //
652 0 : recon.SetImpPC(xPc,yPc); //store track impact to PC
653 0 : recon.CkovAngle(pTrk,(TClonesArray *)pClus->At(ipCh),index,nmean,xRa,yRa); //search for Cerenkov angle of this track
654 :
655 0 : if(pTrk->GetHMPIDsignal()<0) {delete hmpTrk;hmpTrk=0x0;continue;}
656 :
657 0 : AliHMPIDPid pID;
658 0 : Double_t prob[5];
659 0 : pID.FindPid(pTrk,nmean,5,prob);
660 : // 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]);
661 0 : pTrk->SetHMPIDpid(prob);
662 0 : delete hmpTrk;hmpTrk=0x0;
663 0 : }//iTrk
664 :
665 : return 0; // error code: 0=no error;
666 0 : }//ReconFromKin()
667 : //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
668 : Int_t AliHMPIDTracker::ReconHiddenTrk(AliESDEvent *pEsd,TObjArray *pClus,TObjArray *pNmean, TObjArray *pQthre)
669 : {
670 : // Static method to reconstruct Theta Ckov for all valid tracks of a given event.
671 : // 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)
672 : // Returns: error code, 0 if no errors
673 :
674 0 : AliHMPIDReconHTA reconHTA; //instance of reconstruction class, nothing important in ctor
675 :
676 0 : AliHMPIDParam *pParam = AliHMPIDParam::Instance(); //Instance of AliHMPIDParam
677 :
678 : Bool_t tsRight = kTRUE;
679 :
680 0 : UInt_t tsmin = (UInt_t)((TF1*)pQthre->At(0))->GetXmin(); //
681 0 : UInt_t tsmax = (UInt_t)((TF1*)pQthre->At(0))->GetXmax(); //
682 0 : UInt_t ts = pEsd->GetTimeStamp();
683 :
684 0 : if(ts<tsmin || ts>tsmax) {
685 0 : AliWarning(Form(" in HMPID time stamp out of range!!! Please check!!! ts = %i",ts));
686 : tsRight = kFALSE;
687 0 : }
688 :
689 0 : for(Int_t iTrk=0;iTrk<pEsd->GetNumberOfTracks();iTrk++){ //loop on the ESD tracks in the event
690 :
691 0 : AliESDtrack *pTrk = pEsd->GetTrack(iTrk); //here it is simulated or just empty track
692 : Int_t ipCh;
693 0 : ipCh = pTrk->GetHMPIDcluIdx();ipCh/=1000000;
694 0 : if(ipCh<0) continue;
695 :
696 0 : TClonesArray *pMipCluLst=(TClonesArray *)pClus->At(ipCh); //get the list of clusters
697 0 : Int_t nMipClusTot = pMipCluLst->GetEntries(); //total number of clusters in the given chamber
698 :
699 : Double_t qMip=-1;
700 : Int_t chMip=-1;
701 : Double_t xMip = 0;
702 : Double_t yMip = 0;
703 : Int_t indMip = 0;
704 : Int_t cluMipSiz = 0;
705 :
706 0 : for (Int_t iClu=0; iClu<nMipClusTot;iClu++) { //clusters loop
707 :
708 0 : AliHMPIDCluster *pClu=(AliHMPIDCluster*)pMipCluLst->UncheckedAt(iClu); //get the cluster
709 0 : Double_t qClus = pClu->Q();
710 0 : if(qClus>qMip) {
711 : qMip = qClus;
712 0 : chMip = pClu->Ch();
713 0 : xMip = pClu->X();
714 0 : yMip = pClu->Y();
715 : indMip = iClu;
716 0 : cluMipSiz = pClu->Size();
717 0 : }
718 : }//clus loop
719 :
720 0 : if(chMip<0) return 1;
721 :
722 : Int_t hvsec;
723 : Double_t qthre=0;
724 :
725 : // evaluate qThre
726 0 : if(tsRight){
727 0 : if(pQthre->GetEntriesFast()==pParam->kMaxCh+1) { // just for backward compatibility
728 0 : qthre=((TF1*)pQthre->At(chMip))->Eval(ts); //
729 0 : } else { // in the past just 1 qthre
730 0 : hvsec = pParam->InHVSector(yMip); // per chamber
731 0 : if(hvsec>=0) qthre=((TF1*)pQthre->At(6*chMip+hvsec))->Eval(ts); //
732 : }
733 0 : } else qthre = pParam->QCut();
734 : //
735 0 : if(qMip<qthre) {
736 0 : pTrk->SetHMPIDmip(xMip,yMip,(Int_t)qMip,0); //store mip info in any case
737 0 : pTrk->SetHMPIDcluIdx(chMip,indMip+1000*cluMipSiz);
738 0 : pTrk->SetHMPIDsignal(pParam->kMipQdcCut);
739 0 : return 1; //charge compatible with MIP clusters
740 : }
741 :
742 : pTrk->SetHMPIDmip(xMip,yMip,(Int_t)qMip,0); //store mip info in any case
743 : pTrk->SetHMPIDcluIdx(chMip,indMip+1000*cluMipSiz);
744 :
745 : Double_t yRa = yMip; //just an approx...
746 : Double_t nmean;
747 :
748 0 : Int_t iRad = pParam->Radiator(yRa); //evaluate the radiator involved
749 :
750 : //evaluate nMean
751 0 : if(tsRight){
752 0 : if(pNmean->GetEntries()==21) { //for backward compatibility
753 0 : nmean=((TF1*)pNmean->At(3*chMip))->Eval(ts); //C6F14 Nmean for this chamber
754 0 : } else {
755 0 : if(iRad < 0) {
756 : nmean = -1;
757 0 : } else {
758 0 : Double_t tLow = ((TF1*)pNmean->At(6*chMip+2*iRad ))->Eval(ts); //C6F14 low temp for this chamber
759 0 : Double_t tHigh = ((TF1*)pNmean->At(6*chMip+2*iRad+1))->Eval(ts); //C6F14 high temp for this chamber
760 0 : Double_t tExp = pParam->FindTemp(tLow,tHigh,yRa); //estimated temp for that chamber at that y
761 0 : nmean = pParam->NIdxRad(AliHMPIDParam::Instance()->GetEPhotMean(),tExp); //mean ref idx @ a given temp
762 : }
763 0 : if(nmean < 0){ //track didn' t pass through the radiator
764 0 : pTrk->SetHMPIDsignal(AliHMPIDRecon::kNoRad); //set the appropriate flag
765 0 : return 1;
766 : }
767 : }
768 0 : } else nmean = pParam->MeanIdxRad();
769 : //
770 0 : if(!reconHTA.CkovHiddenTrk(pTrk,(TClonesArray *)pClus->At(ipCh),indMip,nmean)) { //search for track parameters and Cerenkov angle of this track
771 0 : AliHMPIDPid pID;
772 0 : Double_t prob[5];
773 0 : pID.FindPid(pTrk,nmean,5,prob);
774 0 : pTrk->SetHMPIDpid(prob);
775 0 : }
776 : // 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);
777 0 : }//iTrk
778 :
779 0 : return 0; // error code: 0=no error;
780 :
781 0 : }//Recon()
782 : //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
783 : void AliHMPIDTracker::FillClusterArray(TObjArray* array) const {
784 :
785 : // Publishes all pointers to clusters known to the tracker into the
786 : // passed object array.
787 : // The ownership is not transfered - the caller is not expected to delete
788 : // the clusters
789 :
790 0 : for(Int_t iCh=AliHMPIDParam::kMinCh;iCh<=AliHMPIDParam::kMaxCh;iCh++){
791 0 : TClonesArray *pCluArr=(TClonesArray*)(*fClu)[iCh];
792 0 : for (Int_t iClu=0; iClu<pCluArr->GetEntriesFast();iClu++){
793 0 : AliHMPIDCluster *pClu=(AliHMPIDCluster*)pCluArr->UncheckedAt(iClu);
794 0 : array->AddLast(pClu);
795 : }//cluster loop in iCh
796 0 : pCluArr->Delete();
797 : }//Ch loop
798 :
799 0 : return;
800 : }
801 : //++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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