1 /**************************************************************************
2 * Copyright(c) 2007-2009, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
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 **************************************************************************/
16 #include "AliITSRecoParam.h"
21 ///////////////////////////////////////////////////////////////////////////////
23 // Class with ITS reconstruction parameters //
24 // Origin: andrea.dainese@lnl.infn.it //
26 ///////////////////////////////////////////////////////////////////////////////
30 ClassImp(AliITSRecoParam)
32 const Int_t AliITSRecoParam::fgkLayersNotToSkip[AliITSgeomTGeo::kNLayers]={0,0,0,0,0,0};
33 const Int_t AliITSRecoParam::fgkLastLayerToTrackTo=0;
34 const Int_t AliITSRecoParam::fgkMaxDetectorPerLayer=1000;
35 const Double_t AliITSRecoParam::fgkriw=80.0;
36 const Double_t AliITSRecoParam::fgkdiw=0.0053;
37 const Double_t AliITSRecoParam::fgkX0iw=30.0;
38 const Double_t AliITSRecoParam::fgkrcd=61.0;
39 const Double_t AliITSRecoParam::fgkdcd=0.0053;
40 const Double_t AliITSRecoParam::fgkX0cd=30.0;
41 const Double_t AliITSRecoParam::fgkyr=12.8;
42 const Double_t AliITSRecoParam::fgkdr=0.03;
43 const Double_t AliITSRecoParam::fgkzm=0.2;
44 const Double_t AliITSRecoParam::fgkdm=0.40;
45 const Double_t AliITSRecoParam::fgkrs=50.0;
46 const Double_t AliITSRecoParam::fgkds=0.001;
47 const Double_t AliITSRecoParam::fgkrInsideITSscreen=49.0;
48 const Double_t AliITSRecoParam::fgkrInsideSPD1=3.5;
49 const Double_t AliITSRecoParam::fgkrPipe=3.;
50 const Double_t AliITSRecoParam::fgkrInsidePipe=2.7;
51 const Double_t AliITSRecoParam::fgkrOutsidePipe=3.3;
52 const Double_t AliITSRecoParam::fgkdPipe=0.0028;
53 const Double_t AliITSRecoParam::fgkrInsideShield[2]={7.5,25.0};
54 const Double_t AliITSRecoParam::fgkrOutsideShield[2]={10.5,30.0};
55 const Double_t AliITSRecoParam::fgkdshield[2]={0.0097,0.0034};
56 const Double_t AliITSRecoParam::fgkX0shield[2]={38.6,42.0};
57 const Double_t AliITSRecoParam::fgkX0Air=21.82;
58 const Double_t AliITSRecoParam::fgkX0Be=65.19;
59 const Double_t AliITSRecoParam::fgkBoundaryWidth=0.2;
60 const Double_t AliITSRecoParam::fgkDeltaXNeighbDets=0.5;
61 const Double_t AliITSRecoParam::fgkSPDdetzlength=6.960; // 7.072-2*0.056
62 const Double_t AliITSRecoParam::fgkSPDdetxlength=1.298; // 1.410-2*0.056
64 //_____________________________________________________________________________
65 AliITSRecoParam::AliITSRecoParam() : AliDetectorRecoParam(),
73 fVtxr3DZCutNarrow(0.),
74 fVtxr3DRCutNarrow(0.),
75 fVtxr3DPhiCutLoose(0.),
76 fVtxr3DPhiCutTight(0.),
80 fNSigmaYLayerForRoadY(0),
82 fNSigmaZLayerForRoadZ(0),
89 fMaxNormChi2NonCForHypothesis(0),
94 fSearchForExtras(kTRUE),
103 fMaxDZToUseConstraint(0),
104 fMaxDforV0dghtrForProlongation(0),
105 fMaxDForProlongation(0),
106 fMaxDZForProlongation(0),
107 fMinPtForProlongation(0),
108 fAddVirtualClustersInDeadZone(kFALSE),
110 fSigmaXDeadZoneHit2(0),
111 fSigmaZDeadZoneHit2(0),
112 fXPassDeadZoneHits(0),
113 fSkipSubdetsNotInTriggerCluster(kTRUE),
114 fUseTGeoInTracker(3),
116 fAllowSharedClusters(kTRUE),
117 fClusterErrorsParam(1),
118 fComputePlaneEff(kFALSE),
119 fHistoPlaneEff(kFALSE),
120 fUseTrackletsPlaneEff(kFALSE),
121 fMCTrackletsPlaneEff(kFALSE),
122 fBkgTrackletsPlaneEff(kFALSE),
123 fTrackleterPhiWindowL1(0.10),
124 fTrackleterPhiWindowL2(0.07),
125 fTrackleterZetaWindowL1(0.6),
126 fTrackleterZetaWindowL2(0.4),
127 fUpdateOncePerEventPlaneEff(kTRUE),
128 fMinContVtxPlaneEff(3),
130 fReadPlaneEffFromOCDB(kFALSE),
132 fMaxMissingClustersPlaneEff(5),
133 fMaxMissingClustersOutPlaneEff(5),
134 fRequireClusterInOuterLayerPlaneEff(kFALSE),
135 fRequireClusterInInnerLayerPlaneEff(kFALSE),
136 fOnlyConstraintPlaneEff(kFALSE),
137 fNSigXFromBoundaryPlaneEff(1.),
138 fNSigZFromBoundaryPlaneEff(1.),
139 fImproveWithVertex(kFALSE),
140 fExtendedEtaAcceptance(kFALSE),
141 fUseBadZonesFromOCDB(kTRUE),
142 fUseSingleBadChannelsFromOCDB(kFALSE),
143 fMinFractionOfBadInRoad(0),
144 fAllowProlongationWithEmptyRoad(kFALSE),
145 fInwardFlagSA(kFALSE),
146 fOuterStartLayerSA(2),
147 fInnerStartLayerSA(3),
149 fFactorSAWindowSizes(1.),
155 fMinClusterChargeSA(0.),
156 fSAOnePointTracks(kFALSE),
157 fSAUseAllClusters(kFALSE),
158 fMaxSPDcontrForSAToUseAllClusters(1e6),
160 fStoreLikeSignV0s(kFALSE),
161 fUseUnfoldingInClusterFinderSPD(kFALSE),
162 fUseUnfoldingInClusterFinderSDD(kTRUE),
163 fUseUnfoldingInClusterFinderSSD(kFALSE),
164 fUseBadChannelsInClusterFinderSSD(kFALSE),
165 fUseSDDCorrectionMaps(kTRUE),
166 fUseSDDClusterSizeSelection(kFALSE),
167 fMinClusterChargeSDD(0.),
168 fUseChargeMatchingInClusterFinderSSD(kTRUE),
169 fTrackleterPhiWindow(0.08),
170 fTrackleterThetaWindow(0.025),
171 fTrackleterPhiShift(0.0045),
172 fTrackleterRemoveClustersFromOverlaps(kFALSE),
173 fTrackleterPhiOverlapCut(0.005),
174 fTrackleterZetaOverlapCut(0.05),
175 fTrackleterPhiRotationAngle(0.0),
176 fTrackleterNStdDev(1.),
177 fScaleDTBySin2T(kFALSE),
178 fUseCosmicRunShiftsSSD(kFALSE),
179 fSPDRemoveNoisyFlag(kTRUE),
180 fSPDRemoveDeadFlag(kTRUE),
181 fVertexerFastSmearX(0.005),
182 fVertexerFastSmearY(0.005),
183 fVertexerFastSmearZ(0.01),
184 fAlignFilterCosmics(kFALSE),
185 fAlignFilterCosmicMergeTracks(kTRUE),
186 fAlignFilterMinITSPoints(4),
187 fAlignFilterMinITSPointsMerged(4),
188 fAlignFilterOnlyITSSATracks(kTRUE),
189 fAlignFilterOnlyITSTPCTracks(kFALSE),
190 fAlignFilterSkipExtra(kFALSE),
191 fAlignFilterMaxMatchingAngle(0.085),
192 fAlignFilterMinAngleWrtModulePlanes(0.52),
193 fAlignFilterMinPt(0.),
194 fAlignFilterMaxPt(1.e10),
195 fAlignFilterFillQANtuples(kTRUE),
197 fMultCutPxDrSPDin(0.1),
198 fMultCutPxDrSPDout(0.15),
201 fMultCutMinElectronProbTPC(0.5),
202 fMultCutMinElectronProbESD(0.1),
204 fMultCutMinRGamma(2.),
206 fMultCutMinPointAngle(0.98),
207 fMultCutMaxDCADauther(0.5),
208 fMultCutMassGamma(0.03),
209 fMultCutMassGammaNSigma(5.),
210 fMultCutMassK0(0.03),
211 fMultCutMassK0NSigma(5.),
212 fMultCutChi2cGamma(2.),
214 fMultCutGammaSFromDecay(-10.),
215 fMultCutK0SFromDecay(-10.),
218 fCorrectLorentzAngleSPD(kTRUE),
219 fTanLorentzAngleHolesSPD(0.017455), // tan(1 degree)
220 fCorrectLorentzAngleSSD(kTRUE),
221 fTanLorentzAngleHolesSSD(0.016), // tan(0.94 degrees)
222 fTanLorentzAngleElectronsSSD(0.068), // tan(3.98 degrees)
232 SetLayersParameters();
233 for(Int_t i=0; i<AliITSgeomTGeo::kNLayers; i++) fLayersToSkip[i]=0;
234 SetUseTGeoInTracker(3);
236 SetAllowSharedClusters(kTRUE);
238 SetAddVirtualClustersInDeadZone(kFALSE);
239 SetUseAmplitudeInfo(kTRUE);
240 SetClusterErrorsParam(1);
241 SetClusterMisalError(0.);
242 SetClusterMisalErrorBOn(0.);
243 SetVertexer3DDefaults();
245 for(Int_t i=0; i<AliITSgeomTGeo::kNLayers; i++) fAlignFilterUseLayer[i]=kTRUE;
246 fESDV0Params = new AliESDV0Params();
248 fESDV0Params->SetMaxDist0(0.1);
249 fESDV0Params->SetMaxDist1(0.1);
250 fESDV0Params->SetMaxDist(1.);
251 fESDV0Params->SetMinPointAngle(0.85);
252 fESDV0Params->SetMinPointAngle2(0.99);
253 fESDV0Params->SetMinR(0.5);
254 fESDV0Params->SetMaxR(220.);
255 fESDV0Params->SetMinPABestConst(0.9999);
256 fESDV0Params->SetMaxRBestConst(10.);
257 fESDV0Params->SetCausality0Cut(0.19);
258 fESDV0Params->SetLikelihood01Cut(0.45);
259 fESDV0Params->SetLikelihood1Cut(0.5);
260 fESDV0Params->SetCombinedCut(0.55);
261 fESDV0Params->SetMinClFullTrk(5.0);
262 fESDV0Params->SetMinTgl0(1.05);
263 fESDV0Params->SetMinRTgl0(40.0);
265 fESDV0Params->SetMinNormDistForbTgl0(3.0);
266 fESDV0Params->SetMinClForb0(4.5);
267 fESDV0Params->SetMinNormDistForb1(3.0);
268 fESDV0Params->SetMinNormDistForb2(2.0);
269 fESDV0Params->SetMinNormDistForb3(1.0);
270 fESDV0Params->SetMinNormDistForb4(4.0);
271 fESDV0Params->SetMinNormDistForb5(5.0);
272 fESDV0Params->SetMinNormDistForbProt(2.0);
273 fESDV0Params->SetMaxPidProbPionForb(0.5);
275 fESDV0Params->SetMinRTPCdensity(40.);
276 fESDV0Params->SetMaxRTPCdensity0(110.);
277 fESDV0Params->SetMaxRTPCdensity10(120.);
278 fESDV0Params->SetMaxRTPCdensity20(130.);
279 fESDV0Params->SetMaxRTPCdensity30(140.);
281 fESDV0Params->SetMinTPCdensity(0.6);
282 fESDV0Params->SetMinTgl1(1.1);
283 fESDV0Params->SetMinTgl2(1.0);
284 fESDV0Params->SetMinchi2before0(16.);
285 fESDV0Params->SetMinchi2before1(16.);
286 fESDV0Params->SetMinchi2after0(16.);
287 fESDV0Params->SetMinchi2after1(16.);
288 fESDV0Params->SetAddchi2SharedCl(18.);
289 fESDV0Params->SetAddchi2NegCl0(25.);
290 fESDV0Params->SetAddchi2NegCl1(30.);
291 fESDV0Params->SetSigp0Par0(0.0001);
292 fESDV0Params->SetSigp0Par1(0.001);
293 fESDV0Params->SetSigp0Par2(0.1);
294 fESDV0Params->SetSigpPar0(0.5);
295 fESDV0Params->SetSigpPar1(0.6);
296 fESDV0Params->SetSigpPar2(0.4);
297 fESDV0Params->SetMaxDcaLh0(0.5);
298 fESDV0Params->SetStreamLevel(0);
299 fESDV0Params->SetChi2KF(100);
300 fESDV0Params->SetRobustChi2KF(100);
303 //_____________________________________________________________________________
304 AliITSRecoParam::~AliITSRecoParam()
314 //_____________________________________________________________________________
315 AliITSRecoParam *AliITSRecoParam::GetHighFluxParam()
318 // make default reconstruction parameters for hig flux env.
320 AliITSRecoParam *param = new AliITSRecoParam();
321 param->SetVertexer3DDefaults();
322 param->SetSPDVertexerPileupAlgoOff();
323 // use of bads from OCDB
324 param->SetUseBadZonesFromOCDB(kTRUE);
325 param->SetUseSingleBadChannelsFromOCDB(kFALSE);
326 // use pointing to vertex during prolongation
327 param->SetImproveWithVertex(kTRUE);
328 // extended eta acceptance
329 param->SetExtendedEtaAcceptance(kFALSE);
330 // allow to skip layer if no cluster and no bad
331 param->SetAllowProlongationWithEmptyRoad(kFALSE);
333 param->SetEventSpecie(AliRecoParam::kHighMult);
335 param->fMaxSnp = 0.95;
337 param->fNSigmaYLayerForRoadY = 4.;
338 param->fNSigmaRoadY = 7.5;
339 param->fNSigmaZLayerForRoadZ = 4.;
340 param->fNSigmaRoadZ = 7.5;
342 param->fNSigma2RoadZC = 60.; //7.75^2
343 param->fNSigma2RoadYC = 60.; //7.75^2
344 param->fNSigma2RoadZNonC = 50.; //7.07^2
345 param->fNSigma2RoadYNonC = 50.; //7.07^2
347 param->fMaxChi2PerCluster[0] = 11.; //7
348 param->fMaxChi2PerCluster[1] = 12.; //5
349 param->fMaxChi2PerCluster[2] = 12.; //8
350 param->fMaxChi2PerCluster[3] = 5.; //8
351 param->fMaxChi2PerCluster[4] = 12.; //6.5
353 param->fMaxNormChi2NonC[0] = 7.;
354 param->fMaxNormChi2NonC[1] = 8.;
355 param->fMaxNormChi2NonC[2] = 8.;
356 param->fMaxNormChi2NonC[3] = 11.;
357 param->fMaxNormChi2NonC[4] = 14.;
358 param->fMaxNormChi2NonC[5] = 25.;
360 param->fMaxNormChi2C[0] = 11.;
361 param->fMaxNormChi2C[1] = 13.;
362 param->fMaxNormChi2C[2] = 15.;
363 param->fMaxNormChi2C[3] = 18.;
364 param->fMaxNormChi2C[4] = 30.;
365 param->fMaxNormChi2C[5] = 35.;
367 param->fMaxNormChi2NonCForHypothesis = 7.;
369 param->fMaxChi2 = 35.;
371 param->fMaxChi2s[0] = 25.; //40
372 param->fMaxChi2s[1] = 25.; //40
373 param->fMaxChi2s[2] = 25.; //40
374 param->fMaxChi2s[3] = 25.; //40
375 param->fMaxChi2s[4] = 40.; //40
376 param->fMaxChi2s[5] = 50.; //40
378 param->fMaxRoad = 6.;
381 param->fMaxChi2In = 16.;
383 param->fMaxChi2sR[0] = 10.;
384 param->fMaxChi2sR[1] = 10.;
385 param->fMaxChi2sR[2] = 10.;
386 param->fMaxChi2sR[3] = 10.;
387 param->fMaxChi2sR[4] = 30.;
388 param->fMaxChi2sR[5] = 40.;
391 param->fChi2PerCluster = 9.;
393 param->fSearchForExtras = kFALSE;
398 param->fSigmaXV = 0.0050;
399 param->fSigmaYV = 0.0050;
400 param->fSigmaZV = 0.0100;
402 param->fVertexCut = 25.;
404 param->fMaxDZforPrimTrk = 0.4;
405 param->fMaxDZToUseConstraint = 3.;
407 param->fMaxDforV0dghtrForProlongation = 30.;
408 param->fMaxDForProlongation = 40.;//10.;
409 param->fMaxDZForProlongation = 60.;//20.;
410 param->fMinPtForProlongation = 0.120;
412 param->fZWindowDeadZone = 2.0;
413 param->fSigmaXDeadZoneHit2 = 0.004/12.;
414 param->fSigmaZDeadZoneHit2 = 0.001/12.;
415 param->fXPassDeadZoneHits = 0.018;
418 param->fMultCutPxDrSPDin = 0.1;
419 param->fMultCutPxDrSPDout = 0.15;
420 param->fMultCutPxDz = 0.2;
421 param->fMultCutDCArz = 0.5;
422 param->fMultCutMinElectronProbTPC = 0.5;
423 param->fMultCutMinElectronProbESD = 0.1;
424 param->fMultCutMinP = 0.05;
425 param->fMultCutMinRGamma = 2.;
426 param->fMultCutMinRK0 = 1.;
427 param->fMultCutMinPointAngle = 0.98;
428 param->fMultCutMaxDCADauther = 0.5;
429 param->fMultCutMassGamma = 0.03;
430 param->fMultCutMassGammaNSigma = 5.;
431 param->fMultCutMassK0 = 0.03;
432 param->fMultCutMassK0NSigma = 5.;
433 param->fMultCutChi2cGamma = 2.;
434 param->fMultCutChi2cK0 = 2.;
435 param->fMultCutGammaSFromDecay = -10.;
436 param->fMultCutK0SFromDecay = -10.;
437 param->fMultCutMaxDCA = 1.;
440 param->fTrackleterPhiWindow = 0.06;
441 param->fTrackleterNStdDev = 25.;
442 param->fScaleDTBySin2T = kTRUE;
446 //_____________________________________________________________________________
447 AliITSRecoParam *AliITSRecoParam::GetLowFluxParam()
450 // make default reconstruction parameters for low flux env.
452 AliITSRecoParam *param = new AliITSRecoParam();
453 param->SetVertexer3DDefaults();
455 // full use of bads from OCDB
456 param->SetUseBadZonesFromOCDB(kTRUE);
457 param->SetUseSingleBadChannelsFromOCDB(kTRUE);
458 // extended eta acceptance
459 param->SetExtendedEtaAcceptance(kTRUE);
460 // allow to skip layer if no cluster and no bad
461 param->SetAllowProlongationWithEmptyRoad(kTRUE);
463 param->SetEventSpecie(AliRecoParam::kLowMult);
465 param->fMaxSnp = 0.95;
467 param->fNSigmaYLayerForRoadY = 4.;
468 param->fNSigmaRoadY = 7.5;
469 param->fNSigmaZLayerForRoadZ = 4.;
470 param->fNSigmaRoadZ = 7.5;
472 param->fNSigma2RoadZC = 60.; //7.75^2
473 param->fNSigma2RoadYC = 60.; //7.75^2
474 param->fNSigma2RoadZNonC = 50.; //7.07^2
475 param->fNSigma2RoadYNonC = 50.; //7.07^2
477 param->fMaxChi2PerCluster[0] = 11.; //7
478 param->fMaxChi2PerCluster[1] = 12.; //5
479 param->fMaxChi2PerCluster[2] = 12.; //8
480 param->fMaxChi2PerCluster[3] = 5.; //8
481 param->fMaxChi2PerCluster[4] = 12.; //6.5
483 param->fMaxNormChi2NonC[0] = 7.;
484 param->fMaxNormChi2NonC[1] = 8.;
485 param->fMaxNormChi2NonC[2] = 8.;
486 param->fMaxNormChi2NonC[3] = 11.;
487 param->fMaxNormChi2NonC[4] = 14.;
488 param->fMaxNormChi2NonC[5] = 25.;
490 param->fMaxNormChi2C[0] = 11.;
491 param->fMaxNormChi2C[1] = 13.;
492 param->fMaxNormChi2C[2] = 15.;
493 param->fMaxNormChi2C[3] = 18.;
494 param->fMaxNormChi2C[4] = 30.;
495 param->fMaxNormChi2C[5] = 35.;
497 param->fMaxNormChi2NonCForHypothesis = 7.;
499 param->fMaxChi2 = 35.;
501 param->fMaxChi2s[0] = 25.; //40
502 param->fMaxChi2s[1] = 25.; //40
503 param->fMaxChi2s[2] = 25.; //40
504 param->fMaxChi2s[3] = 25.; //40
505 param->fMaxChi2s[4] = 40.; //40
506 param->fMaxChi2s[5] = 50.; //40
508 param->fMaxRoad = 6.;
511 param->fMaxChi2In = 16.;
513 param->fMaxChi2sR[0] = 10.;
514 param->fMaxChi2sR[1] = 10.;
515 param->fMaxChi2sR[2] = 10.;
516 param->fMaxChi2sR[3] = 10.;
517 param->fMaxChi2sR[4] = 30.;
518 param->fMaxChi2sR[5] = 40.;
520 param->fChi2PerCluster = 9.;
526 param->fSigmaXV = 0.0050;
527 param->fSigmaYV = 0.0050;
528 param->fSigmaZV = 0.0100;
530 param->fVertexCut = 25.;
532 param->fMaxDZforPrimTrk = 0.4;
533 param->fMaxDZToUseConstraint = 3.;
535 param->fMaxDforV0dghtrForProlongation = 30.;
536 param->fMaxDForProlongation = 40.;//10.;
537 param->fMaxDZForProlongation = 60.;//20.;
538 param->fMinPtForProlongation = 0.120;
540 param->fZWindowDeadZone = 2.0;
541 param->fSigmaXDeadZoneHit2 = 0.004/12.;
542 param->fSigmaZDeadZoneHit2 = 0.001/12.;
543 param->fXPassDeadZoneHits = 0.018;
544 param->SetNLoopsSA(20);
545 param->fMaxPhiSA = 0.07;
546 param->fMaxLambdaSA = 0.04;
549 param->GetESDV0Params()->SetMinRTgl0(0.5);
550 param->GetESDV0Params()->SetMaxDist(1.5);
551 param->GetESDV0Params()->SetMaxDcaLh0(1.5);
552 param->GetESDV0Params()->SetMaxRBestConst(80);
553 param->GetESDV0Params()->SetMinPABestConst(0.99);
554 param->GetESDV0Params()->SetMinNormDistForbTgl0(1.);
555 param->GetESDV0Params()->SetMinNormDistForb1(2.);
556 param->GetESDV0Params()->SetMinNormDistForbProt(1.);
557 param->GetESDV0Params()->SetMaxPidProbPionForb(0.7);
558 param->GetESDV0Params()->SetLikelihood01Cut(0.3);
559 param->GetESDV0Params()->SetLikelihood1Cut(0.35);
560 param->GetESDV0Params()->SetCombinedCut(0.4);
563 param->fMultCutPxDrSPDin = 0.1;
564 param->fMultCutPxDrSPDout = 0.15;
565 param->fMultCutPxDz = 0.2;
566 param->fMultCutDCArz = 0.5;
567 param->fMultCutMinElectronProbTPC = 0.5;
568 param->fMultCutMinElectronProbESD = 0.1;
569 param->fMultCutMinP = 0.05;
570 param->fMultCutMinRGamma = 2.;
571 param->fMultCutMinRK0 = 1.;
572 param->fMultCutMinPointAngle = 0.98;
573 param->fMultCutMaxDCADauther = 0.5;
574 param->fMultCutMassGamma = 0.03;
575 param->fMultCutMassGammaNSigma = 5.;
576 param->fMultCutMassK0 = 0.03;
577 param->fMultCutMassK0NSigma = 5.;
578 param->fMultCutChi2cGamma = 2.;
579 param->fMultCutChi2cK0 = 2.;
580 param->fMultCutGammaSFromDecay = -10.;
581 param->fMultCutK0SFromDecay = -10.;
582 param->fMultCutMaxDCA = 1.;
587 //_____________________________________________________________________________
588 AliITSRecoParam *AliITSRecoParam::GetCosmicTestParam()
591 // make default reconstruction parameters for cosmics
593 AliITSRecoParam *param = new AliITSRecoParam();
595 // vertexer for cosmics
596 param->SetVertexer(2);
598 param->SetClusterErrorsParam(2);
599 param->SetFindV0s(kFALSE);
600 param->SetAddVirtualClustersInDeadZone(kFALSE);
601 param->SetUseAmplitudeInfo(kFALSE);
604 param->SetEventSpecie(AliRecoParam::kCosmic);
606 // full use of bads from OCDB
607 param->SetUseBadZonesFromOCDB(kTRUE);
608 param->SetUseSingleBadChannelsFromOCDB(kTRUE);
610 // find independently ITS SA tracks
611 param->SetSAUseAllClusters();
612 param->SetOuterStartLayerSA(AliITSgeomTGeo::GetNLayers()-2);
614 //****** COSMICS 2009 (same as COSMICS 2008) *********************
616 // to maximize efficiency
617 param->SetAllowProlongationWithEmptyRoad();
618 param->SetMinNPointsSA(2);
620 // larger seach windows for SA (in case of large misalignments)
621 param->SetNLoopsSA(33);
622 param->SetFactorSAWindowSizes(20);
624 // additional error due to misal (B off)
625 param->SetClusterMisalErrorY(1.0,1.0,1.0,1.0,1.0,1.0); // [cm]
626 param->SetClusterMisalErrorZ(1.0,1.0,1.0,1.0,1.0,1.0); // [cm]
627 // additional error due to misal (B on)
628 param->SetClusterMisalErrorYBOn(0.0,0.0,0.1,0.1,0.1,0.1); // [cm]
629 param->SetClusterMisalErrorZBOn(0.1,0.1,0.1,0.1,0.1,0.1); // [cm]
633 param->fUseSDDCorrectionMaps = kFALSE;
634 param->fUseSDDClusterSizeSelection=kTRUE;
635 param->fMinClusterChargeSDD=30.;
638 // alignment data filter
639 param->SetAlignFilterCosmics(kTRUE);
640 param->SetAlignFilterCosmicMergeTracks(kTRUE);
641 param->SetAlignFilterMinITSPoints(1);
642 param->SetAlignFilterMinITSPointsMerged(3);
643 param->SetAlignFilterOnlyITSSATracks(kTRUE);
644 param->SetAlignFilterOnlyITSTPCTracks(kFALSE);
645 param->SetAlignFilterSkipExtra(kFALSE);
646 param->SetAlignFilterMaxMatchingAngle(0.085/*5deg*/);
647 param->SetAlignFilterMinPt(0.2);
648 param->SetAlignFilterMaxPt(1.e10);
649 param->SetAlignFilterFillQANtuples(kTRUE);
651 //******************************************************************
653 param->fMaxSnp = 0.95;
655 param->fNSigmaYLayerForRoadY = 4.;
656 param->fNSigmaRoadY = 7.5;
657 param->fNSigmaZLayerForRoadZ = 4.;
658 param->fNSigmaRoadZ = 7.5;
660 param->fNSigma2RoadZC = 60.; //7.75^2
661 param->fNSigma2RoadYC = 60.; //7.75^2
662 param->fNSigma2RoadZNonC = 50.; //7.07^2
663 param->fNSigma2RoadYNonC = 50.; //7.07^2
665 param->fMaxChi2PerCluster[0] = 11.; //7
666 param->fMaxChi2PerCluster[1] = 12.; //5
667 param->fMaxChi2PerCluster[2] = 12.; //8
668 param->fMaxChi2PerCluster[3] = 5.; //8
669 param->fMaxChi2PerCluster[4] = 12.; //6.5
671 param->fMaxNormChi2NonC[0] = 7.;
672 param->fMaxNormChi2NonC[1] = 8.;
673 param->fMaxNormChi2NonC[2] = 8.;
674 param->fMaxNormChi2NonC[3] = 11.;
675 param->fMaxNormChi2NonC[4] = 14.;
676 param->fMaxNormChi2NonC[5] = 25.;
678 param->fMaxNormChi2C[0] = 11.;
679 param->fMaxNormChi2C[1] = 13.;
680 param->fMaxNormChi2C[2] = 15.;
681 param->fMaxNormChi2C[3] = 18.;
682 param->fMaxNormChi2C[4] = 30.;
683 param->fMaxNormChi2C[5] = 35.;
685 param->fMaxNormChi2NonCForHypothesis = 7.;
687 param->fMaxChi2 = 35.;
689 param->fMaxChi2s[0] = 25.; //40
690 param->fMaxChi2s[1] = 25.; //40
691 param->fMaxChi2s[2] = 25.; //40
692 param->fMaxChi2s[3] = 25.; //40
693 param->fMaxChi2s[4] = 40.; //40
694 param->fMaxChi2s[5] = 50.; //40
696 param->fMaxRoad = 6.;
699 param->fMaxChi2In = 16.;
701 param->fMaxChi2sR[0] = 10.;
702 param->fMaxChi2sR[1] = 10.;
703 param->fMaxChi2sR[2] = 10.;
704 param->fMaxChi2sR[3] = 10.;
705 param->fMaxChi2sR[4] = 30.;
706 param->fMaxChi2sR[5] = 40.;
708 param->fChi2PerCluster = 9.;
714 param->fSigmaXV = 0.0050;
715 param->fSigmaYV = 0.0050;
716 param->fSigmaZV = 0.0100;
718 param->fVertexCut = 25.;
720 param->fMaxDZforPrimTrk = 0.4;
721 param->fMaxDZToUseConstraint = 3.;
723 param->fMaxDforV0dghtrForProlongation = 30.;
724 param->fMaxDForProlongation = 10.;
725 param->fMaxDZForProlongation = 20.;
726 param->fMinPtForProlongation = 0.120;
728 param->fZWindowDeadZone = 2.0;
729 param->fSigmaXDeadZoneHit2 = 0.004/12.;
730 param->fSigmaZDeadZoneHit2 = 0.001/12.;
731 param->fXPassDeadZoneHits = 0.018;
735 //_____________________________________________________________________________
736 AliITSRecoParam *AliITSRecoParam::GetPlaneEffParam(Int_t i)
739 // make special reconstruction parameters for Plane Efficiency study on layer i (0,5)
741 // if i=-1, then the evaluation for both pixel layers is tried with the tracklet method
743 if (i<-1 || i>=AliITSgeomTGeo::kNLayers) {
744 printf("AliITSRecoParam::GetPlaneEffParam: index of ITS Plane nor in the range [0,5] neither =-1\n");
745 printf("returning null pointer");
748 if(i>=0) { // Method using tracks (remove given plane from tracking)
749 AliITSRecoParam *param;
750 param = GetLowFluxParam();
751 param->SetClusterErrorsParam(2);
752 // find independently ITS SA tracks
753 param->SetSAUseAllClusters();
754 param->SetOuterStartLayerSA(2);
755 param->SetAllowProlongationWithEmptyRoad(kTRUE);
756 // larger seach windows for SA (in case of large misalignments)
757 param->SetFactorSAWindowSizes(2);
759 // Misalignment syst errors decided at ITS meeting 25.03.2010
760 // additional error due to misal (B off)
761 param->SetClusterMisalErrorY(0.0010,0.0010,0.0300,0.0300,0.0020,0.0020); // [cm]
762 param->SetClusterMisalErrorZ(0.0100,0.0100,0.0100,0.0100,0.0500,0.0500); // [cm]
763 // additional error due to misal (B on)
764 param->SetClusterMisalErrorYBOn(0.0010,0.0030,0.0500,0.0500,0.0020,0.0020); // [cm]
765 param->SetClusterMisalErrorZBOn(0.0100,0.0100,0.0100,0.0100,0.0500,0.0500); // [cm]
769 param->SetUseSDDCorrectionMaps(kTRUE); // changed 30.04.2010
770 param->SetUseSDDClusterSizeSelection(kTRUE);
771 param->SetMinClusterChargeSDD(30.);
772 param->SetUseUnfoldingInClusterFinderSDD(kFALSE);
774 param->SetComputePlaneEff();
775 param->SetLayerToSkip(i);
776 param->SetIPlanePlaneEff(i);
777 param->fNSigXFromBoundaryPlaneEff= 1.;
778 param->fNSigZFromBoundaryPlaneEff= 1.;
779 // optimized setting for SPD0 (i==0)
781 param->fMinPtPlaneEff = 0.200; // high pt particles
782 param->fMaxMissingClustersPlaneEff = 2; // at most 2 layers out of 5 without cluster
783 param->fMaxMissingClustersOutPlaneEff = 2; // at most 2 layers out of 5 external ones without cluster
784 param->fRequireClusterInOuterLayerPlaneEff = kTRUE; // cluster on SPD1 must be
785 //param->fOnlyConstraintPlaneEff = kTRUE;
788 param->fMinPtPlaneEff = 0.200; // high pt particles
789 param->fMaxMissingClustersPlaneEff = 2; // at most 2 layer out of 5 without cluster
790 param->fMaxMissingClustersOutPlaneEff = 2; // at most 2 layer out of 4 external ones without cluster
791 //param->fRequireClusterInOuterLayerPlaneEff = kTRUE; // cluster on SSD1 must be
794 param->fMinPtPlaneEff = 0.200; // high pt particles
795 param->fMaxMissingClustersPlaneEff = 2; // at most 2 layer out of 5 without cluster
796 param->fMaxMissingClustersOutPlaneEff = 2; // at most 2 layer out of 3 external ones without cluster
797 //param->fRequireClusterInOuterLayerPlaneEff = kTRUE;
798 //param->fOnlyConstraintPlaneEff = kTRUE;
801 param->fMinPtPlaneEff = 0.200; // high pt particles
802 param->fMaxMissingClustersPlaneEff = 2; // at most 2 layer out of 5 without cluster
803 param->fMaxMissingClustersOutPlaneEff = 1; // at most 1 layer out of 2 external ones without cluster
806 param->fMinPtPlaneEff = 0.200; // high pt particles
807 param->fMaxMissingClustersPlaneEff = 2; // at most 2 layer out of 5 without cluster
808 param->fMaxMissingClustersOutPlaneEff = 1; // at most 1 layer out of 1 external ones without cluster
809 // param->fRequireClusterInOuterLayerPlaneEff = kTRUE;
810 //param->fOnlyConstraintPlaneEff = kTRUE;
813 param->fMinPtPlaneEff = 0.200; // high pt particles
814 param->fMaxMissingClustersPlaneEff = 2; // at most 2 layer out of 5 without cluster
819 else if (i==-1) { // Method using tracklets
820 AliITSRecoParam *param;
821 param = GetLowFluxParam();
822 param->SetIPlanePlaneEff(i);
823 param->SetComputePlaneEff(kTRUE,kFALSE);
824 param->SetUseTrackletsPlaneEff(kTRUE);
825 param->SetTrackleterPhiWindowL2(0.07);
826 param->SetTrackleterZetaWindowL2(0.4);
827 param->SetTrackleterPhiWindowL1(0.10);
828 param->SetTrackleterZetaWindowL1(0.6);
829 param->SetUpdateOncePerEventPlaneEff(kTRUE);
830 param->SetMinContVtxPlaneEff(3);
834 AliErrorGeneral("AliITSRecoParam",Form("Unrecognised value of i %d\n",i));
839 //_____________________________________________________________________________
840 void AliITSRecoParam::SetLayersParameters()
843 // number of layers and layers spatial resolutions
846 // spatial resolutions of the detectors
847 // y: 12 12 38 38 20 20 micron
850 fSigmaY2[2]=1.444e-5;
851 fSigmaY2[3]=1.444e-5;
854 // z: 120 120 28 28 830 830 micron
859 fSigmaZ2[4]=6.889e-3;
860 fSigmaZ2[5]=6.889e-3;
864 //_____________________________________________________________________________
865 void AliITSRecoParam::PrintParameters() const
871 printf("============================= AliITSRecoParam::PrintParameters ");
872 printf("============================= \n\n");
873 for(Int_t i=0; i<AliITSgeomTGeo::kNLayers; i++) {
874 if(!fLayersToSkip[i]) {
875 printf("ITS Traking: using layer %d\n",i);
877 printf("ITS Traking: skipping layer %d\n",i);
880 for(Int_t i=0; i<AliITSgeomTGeo::kNLayers; i++) {
881 if(fUseAmplitudeInfo[i]) {
882 printf("ITS Traking: use amplitude info for layer %d\n",i);
884 printf("ITS Traking: don't use amplitude info for layer %d\n",i);
887 for(Int_t i=0; i<AliITSgeomTGeo::kNLayers; i++)
888 printf("Layer %d:\n sigmaY2 %f, sigmaZ2 %f\n sigmaMisalY %f, sigmaMisalZ %f\n max norm chi2 for non constrained tracks %f\n max norm chi2 for constrained tracks %f\n max predicted chi2 (cluster & track prol.) %f\n",i,fSigmaY2[i],fSigmaZ2[i],fClusterMisalErrorY[i],fClusterMisalErrorZ[i],fMaxNormChi2NonC[i],fMaxNormChi2C[i],fMaxChi2s[i]);