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9dcfce73 | 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 | **************************************************************************/ | |
15 | ||
16 | ||
17 | /////////////////////////////////////////////////////////////////////////////// | |
18 | // // | |
19 | // Component for redoing the reconstruction from the clusters and tracks | |
20 | // | |
21 | // The new calibration data used | |
22 | // | |
23 | // In reality it overwrites the content of the ESD | |
24 | // | |
25 | ||
3bf5c7a6 | 26 | /* |
27 | ||
28 | gSystem->Load("libANALYSIS"); | |
29 | gSystem->Load("libTPCcalib"); | |
30 | // | |
31 | gSystem->AddIncludePath("-I$ALICE_ROOT/TPC/macros"); | |
32 | gROOT->LoadMacro("$ALICE_ROOT/TPC/macros/AliXRDPROOFtoolkit.cxx+") | |
33 | AliXRDPROOFtoolkit tool; | |
11c7a854 | 34 | TChain * chainCl = tool.MakeChain("calib.txt","Clusters",0,1); |
35 | chainCl->Lookup(); | |
36 | TChain * chainTr = tool.MakeChain("calib.txt","Tracks",0,1); | |
37 | chainTr->Lookup(); | |
3bf5c7a6 | 38 | |
39 | ||
40 | ||
41 | */ | |
42 | ||
43 | ||
44 | ||
9dcfce73 | 45 | // marian.ivanov@cern.ch |
46 | // | |
47 | #include "AliTPCcalibCalib.h" | |
48 | #include "TSystem.h" | |
49 | #include "TFile.h" | |
50 | #include "TTreeStream.h" | |
51 | #include "AliLog.h" | |
52 | #include "TTimeStamp.h" | |
53 | #include "AliESDEvent.h" | |
54 | #include "AliESDfriend.h" | |
55 | #include "AliESDtrack.h" | |
56 | #include "AliTracker.h" | |
11c7a854 | 57 | #include "AliTPCClusterParam.h" |
9dcfce73 | 58 | |
59 | #include "AliTPCcalibDB.h" | |
60 | #include "AliTPCTransform.h" | |
7af539c6 | 61 | #include "AliTPCRecoParam.h" |
9dcfce73 | 62 | #include "AliTPCclusterMI.h" |
63 | #include "AliTPCseed.h" | |
15e48021 | 64 | #include "AliTPCPointCorrection.h" |
9dcfce73 | 65 | |
66 | ClassImp(AliTPCcalibCalib) | |
67 | ||
68 | AliTPCcalibCalib::AliTPCcalibCalib(): | |
7af539c6 | 69 | AliTPCcalibBase(), |
70 | fApplyExBCorrection(1), // apply ExB correction | |
71 | fApplyTOFCorrection(1), // apply TOF correction | |
72 | fApplyPositionCorrection(1), // apply position correction | |
73 | fApplySectorAlignment(1), // apply sector alignment | |
74 | fApplyRPhiCorrection(1), // apply R-Phi correction | |
75 | fApplyRCorrection(1) // apply Radial correction | |
76 | ||
9dcfce73 | 77 | { |
78 | // | |
79 | // Constructor | |
80 | // | |
81 | } | |
82 | ||
83 | ||
84 | AliTPCcalibCalib::AliTPCcalibCalib(const Text_t *name, const Text_t *title) | |
7af539c6 | 85 | :AliTPCcalibBase(), |
86 | fApplyExBCorrection(1), // apply ExB correction | |
87 | fApplyTOFCorrection(1), // apply TOF correction | |
88 | fApplyPositionCorrection(1), // apply position correction | |
89 | fApplySectorAlignment(1), // apply sector alignment | |
90 | fApplyRPhiCorrection(1), // apply R-Phi correction | |
91 | fApplyRCorrection(1) // apply Radial correction | |
9dcfce73 | 92 | { |
93 | SetName(name); | |
94 | SetTitle(title); | |
95 | } | |
96 | ||
97 | ||
98 | AliTPCcalibCalib::AliTPCcalibCalib(const AliTPCcalibCalib&calib): | |
7af539c6 | 99 | AliTPCcalibBase(calib), |
100 | fApplyExBCorrection(calib.GetApplyExBCorrection()), | |
101 | fApplyTOFCorrection(calib.GetApplyTOFCorrection()), | |
102 | fApplyPositionCorrection(calib.GetApplyPositionCorrection()), | |
103 | fApplySectorAlignment(calib.GetApplySectorAlignment()), | |
104 | fApplyRPhiCorrection(calib.GetApplyRPhiCorrection()), | |
105 | fApplyRCorrection(calib.GetApplyRCorrection()) | |
106 | ||
9dcfce73 | 107 | { |
108 | // | |
109 | // copy constructor | |
110 | // | |
111 | } | |
112 | ||
113 | AliTPCcalibCalib &AliTPCcalibCalib::operator=(const AliTPCcalibCalib&calib){ | |
114 | // | |
115 | // | |
116 | // | |
117 | ((AliTPCcalibBase *)this)->operator=(calib); | |
118 | return *this; | |
119 | } | |
120 | ||
121 | ||
122 | AliTPCcalibCalib::~AliTPCcalibCalib() { | |
123 | // | |
124 | // destructor | |
125 | // | |
126 | } | |
127 | ||
128 | ||
129 | void AliTPCcalibCalib::Process(AliESDEvent *event){ | |
130 | // | |
131 | // | |
132 | // | |
133 | if (!event) { | |
134 | return; | |
135 | } | |
136 | AliESDfriend *ESDfriend=static_cast<AliESDfriend*>(event->FindListObject("AliESDfriend")); | |
137 | if (!ESDfriend) { | |
138 | return; | |
139 | } | |
140 | ||
141 | if (GetDebugLevel()>20) printf("Hallo world: Im here\n"); | |
142 | Int_t ntracks=event->GetNumberOfTracks(); | |
91350f5b | 143 | //AliTPCcalibDB::Instance()->SetExBField(fMagF); |
5c3e0d17 | 144 | |
9dcfce73 | 145 | // |
146 | // | |
147 | // | |
148 | ||
149 | for (Int_t i=0;i<ntracks;++i) { | |
3e55050f | 150 | AliESDtrack *track = event->GetTrack(i); |
151 | AliESDfriendTrack *friendTrack = ESDfriend->GetTrack(i); | |
152 | ||
153 | const AliExternalTrackParam * trackIn = track->GetInnerParam(); | |
9dcfce73 | 154 | const AliExternalTrackParam * trackOut = track->GetOuterParam(); |
3e55050f | 155 | AliExternalTrackParam * tpcOut = (AliExternalTrackParam *)friendTrack->GetTPCOut(); |
9dcfce73 | 156 | if (!trackIn) continue; |
157 | if (!trackOut) continue; | |
3e55050f | 158 | if (!tpcOut) continue; |
9dcfce73 | 159 | TObject *calibObject; |
160 | AliTPCseed *seed = 0; | |
161 | for (Int_t l=0;(calibObject=friendTrack->GetCalibObject(l));++l) { | |
162 | if ((seed=dynamic_cast<AliTPCseed*>(calibObject))) break; | |
163 | } | |
164 | if (!seed) continue; | |
38b1a1ca | 165 | RefitTrack(track, seed,event->GetMagneticField()); |
3e55050f | 166 | (*tpcOut)=*(track->GetOuterParam()); |
9dcfce73 | 167 | } |
168 | return; | |
169 | } | |
170 | ||
38b1a1ca | 171 | Bool_t AliTPCcalibCalib::RefitTrack(AliESDtrack * track, AliTPCseed *seed, Float_t magesd){ |
9dcfce73 | 172 | // |
173 | // Refit track | |
38b1a1ca | 174 | // if magesd==0 forget the curvature |
9dcfce73 | 175 | |
15e48021 | 176 | // |
177 | // 0 - Setup transform object | |
178 | // | |
179 | AliTPCTransform *transform = AliTPCcalibDB::Instance()->GetTransform() ; | |
180 | transform->SetCurrentRun(fRun); | |
181 | transform->SetCurrentTimeStamp((UInt_t)fTime); | |
7af539c6 | 182 | if(!fApplyExBCorrection) { // disable ExB correction in transform |
183 | if(transform->GetCurrentRecoParam()) | |
184 | transform->GetCurrentRecoParamNonConst()->SetUseExBCorrection(0); | |
185 | } | |
186 | if(!fApplyTOFCorrection) { // disable TOF correction in transform | |
187 | if(transform->GetCurrentRecoParam()) | |
188 | transform->GetCurrentRecoParamNonConst()->SetUseTOFCorrection(kFALSE); | |
189 | } | |
190 | ||
9dcfce73 | 191 | // |
192 | // First apply calibration | |
193 | // | |
15e48021 | 194 | AliTPCPointCorrection * corr = AliTPCPointCorrection::Instance(); |
9dcfce73 | 195 | for (Int_t irow=0;irow<159;irow++) { |
196 | AliTPCclusterMI *cluster=seed->GetClusterPointer(irow); | |
197 | if (!cluster) continue; | |
198 | AliTPCclusterMI cl0(*cluster); | |
199 | Double_t x[3]={cluster->GetRow(),cluster->GetPad(),cluster->GetTimeBin()}; | |
200 | Int_t i[1]={cluster->GetDetector()}; | |
7af539c6 | 201 | |
9dcfce73 | 202 | transform->Transform(x,i,0,1); |
11c7a854 | 203 | // |
204 | // get position correction | |
205 | // | |
206 | Int_t ipad=0; | |
207 | if (cluster->GetDetector()>35) ipad=1; | |
208 | Float_t dy =AliTPCClusterParam::SPosCorrection(0,ipad,cluster->GetPad(),cluster->GetTimeBin(),cluster->GetZ(),cluster->GetSigmaY2(),cluster->GetSigmaZ2(),cluster->GetMax()); | |
209 | Float_t dz =AliTPCClusterParam::SPosCorrection(1,ipad,cluster->GetPad(),cluster->GetTimeBin(),cluster->GetZ(),cluster->GetSigmaY2(),cluster->GetSigmaZ2(),cluster->GetMax()); | |
7af539c6 | 210 | // if(fApplyPositionCorrection) { |
11c7a854 | 211 | //x[1]-=dy; |
212 | //x[2]-=dz; | |
7af539c6 | 213 | // } |
15e48021 | 214 | // |
215 | // Apply sector alignment | |
216 | // | |
217 | Double_t dxq = AliTPCPointCorrection::SGetCorrectionSector(0,cluster->GetDetector()%36,cluster->GetX(), | |
218 | cluster->GetY(),cluster->GetZ()); | |
219 | Double_t dyq = AliTPCPointCorrection::SGetCorrectionSector(1,cluster->GetDetector()%36,cluster->GetX(), | |
220 | cluster->GetY(),cluster->GetZ()); | |
221 | Double_t dzq = AliTPCPointCorrection::SGetCorrectionSector(2,cluster->GetDetector()%36,cluster->GetX(), | |
222 | cluster->GetY(),cluster->GetZ()); | |
7af539c6 | 223 | if (fApplySectorAlignment){ |
15e48021 | 224 | x[0]-=dxq; |
225 | x[1]-=dyq; | |
226 | x[2]-=dzq; | |
227 | } | |
228 | // | |
229 | // Apply r-phi correction - To be done on track level- knowing the track angle !!! | |
230 | // | |
231 | Double_t corrclY = | |
232 | corr->RPhiCOGCorrection(cluster->GetDetector(),cluster->GetRow(), cluster->GetPad(), | |
233 | cluster->GetY(),cluster->GetY(), cluster->GetZ(), 0., cluster->GetMax(),2.5); | |
234 | // R correction | |
235 | Double_t corrR = corr->CorrectionOutR0(kFALSE,kFALSE,cluster->GetX(),cluster->GetY(),cluster->GetZ(),cluster->GetDetector()); | |
236 | ||
7af539c6 | 237 | if (fApplyRPhiCorrection){ |
15e48021 | 238 | if (cluster->GetY()>0) x[1]+=corrclY; // rphi correction |
239 | if (cluster->GetY()<0) x[1]-=corrclY; // rphi correction | |
7af539c6 | 240 | } |
241 | if (fApplyRCorrection){ | |
15e48021 | 242 | x[0]+=corrR; // radial correction |
243 | } | |
11c7a854 | 244 | |
15e48021 | 245 | // |
246 | // | |
9dcfce73 | 247 | // |
248 | cluster->SetX(x[0]); | |
249 | cluster->SetY(x[1]); | |
250 | cluster->SetZ(x[2]); | |
251 | if (fStreamLevel>2){ | |
252 | TTreeSRedirector *cstream = GetDebugStreamer(); | |
253 | if (cstream){ | |
254 | (*cstream)<<"Clusters"<< | |
108953e9 | 255 | "run="<<fRun<< // run number |
256 | "event="<<fEvent<< // event number | |
257 | "time="<<fTime<< // time stamp of event | |
258 | "trigger="<<fTrigger<< // trigger | |
15e48021 | 259 | "triggerClass="<<&fTriggerClass<< // trigger |
108953e9 | 260 | "mag="<<fMagF<< // magnetic field |
9dcfce73 | 261 | "cl0.="<<&cl0<< |
262 | "cl.="<<cluster<< | |
11c7a854 | 263 | "cy="<<dy<< |
264 | "cz="<<dz<< | |
fe8454d9 | 265 | "cY="<<corrclY<< |
15e48021 | 266 | "cR="<<corrR<< |
267 | "dxq="<<dxq<< | |
268 | "dyq="<<dyq<< | |
269 | "dzq="<<dzq<< | |
9dcfce73 | 270 | "\n"; |
271 | } | |
272 | } | |
273 | } | |
15e48021 | 274 | // |
275 | // | |
276 | // | |
11c7a854 | 277 | Int_t ncl = seed->GetNumberOfClusters(); |
278 | Double_t covar[15]; | |
279 | for (Int_t i=0;i<15;i++) covar[i]=0; | |
280 | covar[0]=10.*10.; | |
281 | covar[2]=10.*10.; | |
282 | covar[5]=10.*10./(64.*64.); | |
283 | covar[9]=10.*10./(64.*64.); | |
38b1a1ca | 284 | covar[14]=0.3*0.3; |
285 | if (TMath::Abs(magesd)<0.05) { | |
286 | covar[14]=0.025*0.025; | |
287 | } | |
9dcfce73 | 288 | // |
289 | // And now do refit | |
290 | // | |
11c7a854 | 291 | AliExternalTrackParam * trackInOld = (AliExternalTrackParam*)track->GetInnerParam(); |
9dcfce73 | 292 | AliExternalTrackParam * trackOutOld = (AliExternalTrackParam*)track->GetOuterParam(); |
293 | ||
3e55050f | 294 | |
9dcfce73 | 295 | AliExternalTrackParam trackIn = *trackOutOld; |
38b1a1ca | 296 | if (TMath::Abs(magesd)<0.05) { |
297 | ((Double_t&)(trackIn.GetParameter()[4]))=0.000000001; | |
298 | } | |
299 | trackIn.ResetCovariance(20.); | |
11c7a854 | 300 | trackIn.AddCovariance(covar); |
9dcfce73 | 301 | Double_t xyz[3]; |
302 | Int_t nclIn=0,nclOut=0; | |
303 | // | |
15e48021 | 304 | // Refit in |
305 | // | |
306 | ||
307 | for (Int_t irow=159; irow>0; irow--){ | |
308 | AliTPCclusterMI *cl=seed->GetClusterPointer(irow); | |
309 | if (!cl) continue; | |
310 | if (cl->GetX()<80) continue; | |
311 | Int_t sector = cl->GetDetector(); | |
312 | Float_t dalpha = TMath::DegToRad()*(sector%18*20.+10.)-trackIn.GetAlpha(); | |
91f8fa1d | 313 | if (TMath::Abs(dalpha)>0.01){ |
314 | if (!trackIn.Rotate(TMath::DegToRad()*(sector%18*20.+10.))) break; | |
315 | } | |
15e48021 | 316 | Double_t r[3]={cl->GetX(),cl->GetY(),cl->GetZ()}; |
317 | Double_t cov[3]={0.01,0.,0.01}; //TODO: correct error parametrisation | |
318 | AliTPCseed::GetError(cl, &trackIn,cov[0],cov[2]); | |
319 | cov[0]*=cov[0]; | |
320 | cov[2]*=cov[2]; | |
321 | trackIn.GetXYZ(xyz); | |
322 | Double_t bz = AliTracker::GetBz(xyz); | |
323 | ||
324 | if (!trackIn.PropagateTo(r[0],bz)) continue; | |
325 | if (RejectCluster(cl,&trackIn)) continue; | |
326 | nclIn++; | |
327 | trackIn.Update(&r[1],cov); | |
328 | } | |
329 | // | |
330 | AliExternalTrackParam trackOut = trackIn; | |
38b1a1ca | 331 | if (TMath::Abs(magesd)<0.05) { |
332 | ((Double_t&)(trackOut.GetParameter()[4]))=0.000000001; | |
333 | } | |
334 | trackOut.ResetCovariance(20.); | |
15e48021 | 335 | trackOut.AddCovariance(covar); |
336 | // | |
9dcfce73 | 337 | // Refit out |
338 | // | |
15e48021 | 339 | //Bool_t lastEdge=kFALSE; |
9dcfce73 | 340 | for (Int_t irow=0; irow<160; irow++){ |
341 | AliTPCclusterMI *cl=seed->GetClusterPointer(irow); | |
342 | if (!cl) continue; | |
343 | if (cl->GetX()<80) continue; | |
344 | Int_t sector = cl->GetDetector(); | |
345 | Float_t dalpha = TMath::DegToRad()*(sector%18*20.+10.)-trackOut.GetAlpha(); | |
346 | ||
91f8fa1d | 347 | if (TMath::Abs(dalpha)>0.01){ |
348 | if (!trackOut.Rotate(TMath::DegToRad()*(sector%18*20.+10.))) break; | |
349 | } | |
9dcfce73 | 350 | Double_t r[3]={cl->GetX(),cl->GetY(),cl->GetZ()}; |
91350f5b | 351 | |
352 | Double_t cov[3]={0.01,0.,0.01}; //TODO: correct error parametrisation | |
353 | AliTPCseed::GetError(cl, &trackOut,cov[0],cov[2]); | |
354 | cov[0]*=cov[0]; | |
355 | cov[2]*=cov[2]; | |
9dcfce73 | 356 | trackOut.GetXYZ(xyz); |
357 | Double_t bz = AliTracker::GetBz(xyz); | |
15e48021 | 358 | if (!trackOut.PropagateTo(r[0],bz)) continue; |
42b40d07 | 359 | if (RejectCluster(cl,&trackOut)) continue; |
15e48021 | 360 | nclOut++; |
361 | trackOut.Update(&r[1],cov); | |
362 | //if (cl->GetType()<0) lastEdge=kTRUE; | |
363 | //if (cl->GetType()>=0) lastEdge=kFALSE; | |
9dcfce73 | 364 | } |
365 | // | |
9dcfce73 | 366 | // |
15e48021 | 367 | // |
368 | nclIn=0; | |
369 | trackIn = trackOut; | |
370 | trackIn.ResetCovariance(10.); | |
371 | // | |
372 | // Refit in one more time | |
373 | // | |
9dcfce73 | 374 | for (Int_t irow=159; irow>0; irow--){ |
375 | AliTPCclusterMI *cl=seed->GetClusterPointer(irow); | |
376 | if (!cl) continue; | |
377 | if (cl->GetX()<80) continue; | |
378 | Int_t sector = cl->GetDetector(); | |
379 | Float_t dalpha = TMath::DegToRad()*(sector%18*20.+10.)-trackIn.GetAlpha(); | |
91f8fa1d | 380 | if (TMath::Abs(dalpha)>0.01){ |
381 | if (!trackIn.Rotate(TMath::DegToRad()*(sector%18*20.+10.))) break; | |
382 | } | |
9dcfce73 | 383 | Double_t r[3]={cl->GetX(),cl->GetY(),cl->GetZ()}; |
384 | Double_t cov[3]={0.01,0.,0.01}; //TODO: correct error parametrisation | |
91350f5b | 385 | AliTPCseed::GetError(cl, &trackIn,cov[0],cov[2]); |
386 | cov[0]*=cov[0]; | |
387 | cov[2]*=cov[2]; | |
388 | trackIn.GetXYZ(xyz); | |
9dcfce73 | 389 | Double_t bz = AliTracker::GetBz(xyz); |
390 | ||
15e48021 | 391 | if (!trackIn.PropagateTo(r[0],bz)) continue; |
42b40d07 | 392 | if (RejectCluster(cl,&trackIn)) continue; |
15e48021 | 393 | nclIn++; |
9dcfce73 | 394 | trackIn.Update(&r[1],cov); |
395 | } | |
15e48021 | 396 | |
397 | ||
3bf5c7a6 | 398 | trackIn.Rotate(trackInOld->GetAlpha()); |
399 | trackOut.Rotate(trackOutOld->GetAlpha()); | |
400 | // | |
401 | trackInOld->GetXYZ(xyz); | |
402 | Double_t bz = AliTracker::GetBz(xyz); | |
403 | trackIn.PropagateTo(trackInOld->GetX(),bz); | |
404 | // | |
405 | trackOutOld->GetXYZ(xyz); | |
406 | bz = AliTracker::GetBz(xyz); | |
407 | trackOut.PropagateTo(trackOutOld->GetX(),bz); | |
408 | ||
9dcfce73 | 409 | |
410 | if (fStreamLevel>0){ | |
411 | TTreeSRedirector *cstream = GetDebugStreamer(); | |
412 | if (cstream){ | |
413 | (*cstream)<<"Tracks"<< | |
108953e9 | 414 | "run="<<fRun<< // run number |
415 | "event="<<fEvent<< // event number | |
416 | "time="<<fTime<< // time stamp of event | |
417 | "trigger="<<fTrigger<< // trigger | |
15e48021 | 418 | "triggerClass="<<&fTriggerClass<< // trigger |
108953e9 | 419 | "mag="<<fMagF<< // magnetic field |
9dcfce73 | 420 | "nclIn="<<nclIn<< |
421 | "nclOut="<<nclOut<< | |
422 | "ncl="<<ncl<< | |
423 | "TrIn0.="<<trackInOld<< | |
424 | "TrOut0.="<<trackOutOld<< | |
425 | "TrIn1.="<<&trackIn<< | |
426 | "TrOut1.="<<&trackOut<< | |
427 | "\n"; | |
428 | } | |
429 | } | |
3bf5c7a6 | 430 | // |
981e9de5 | 431 | // And now rewrite ESDtrack and TPC seed |
3bf5c7a6 | 432 | // |
433 | ||
434 | (*trackInOld) = trackIn; | |
435 | (*trackOutOld) = trackOut; | |
436 | AliExternalTrackParam *t = &trackIn; | |
437 | track->Set(t->GetX(),t->GetAlpha(),t->GetParameter(),t->GetCovariance()); | |
981e9de5 | 438 | seed->Set(t->GetX(),t->GetAlpha(),t->GetParameter(),t->GetCovariance()); |
fe8454d9 | 439 | seed->SetNumberOfClusters((nclIn+nclOut)/2); |
2cfb8d90 | 440 | return kTRUE; |
9dcfce73 | 441 | } |
442 | ||
443 | ||
444 | ||
445 | Bool_t AliTPCcalibCalib::RejectCluster(AliTPCclusterMI* cl, AliExternalTrackParam * param){ | |
446 | // | |
447 | // check the acceptance of cluster | |
448 | // Cut on edge effects | |
449 | // | |
15e48021 | 450 | Float_t kEdgeCut=2.5; |
451 | Float_t kSigmaCut=6; | |
452 | ||
9dcfce73 | 453 | Bool_t isReject = kFALSE; |
454 | Float_t edgeY = cl->GetX()*TMath::Tan(TMath::Pi()/18); | |
455 | Float_t dist = edgeY - TMath::Abs(cl->GetY()); | |
456 | if (param) dist = TMath::Abs(edgeY - TMath::Abs(param->GetY())); | |
15e48021 | 457 | if (dist<kEdgeCut) isReject=kTRUE; |
458 | ||
459 | Double_t cov[3]={0.01,0.,0.01}; //TODO: correct error parametrisation | |
460 | AliTPCseed::GetError(cl, param,cov[0],cov[2]); | |
91f8fa1d | 461 | if (param->GetSigmaY2()<0 || param->GetSigmaZ2()<0){ |
d3ce44cb | 462 | AliError("Wrong parameters"); |
463 | return kFALSE; | |
464 | } | |
15e48021 | 465 | Double_t py = (cl->GetY()-param->GetY())/TMath::Sqrt(cov[0]*cov[0]+param->GetSigmaY2()); |
466 | Double_t pz = (cl->GetZ()-param->GetZ())/TMath::Sqrt(cov[2]*cov[2]+param->GetSigmaZ2()); | |
467 | // | |
468 | if ((py*py+pz*pz)>kSigmaCut*kSigmaCut) isReject=kTRUE; | |
469 | ||
9dcfce73 | 470 | return isReject; |
471 | } | |
472 | ||
473 | ||
91350f5b | 474 |