1 /**************************************************************************
2 * Copyright(c) 1998-1999, 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 /* $Id: AliEMCALRecoUtils.cxx 33808 2009-07-15 09:48:08Z gconesab $ */
18 ///////////////////////////////////////////////////////////////////////////////
20 // Class AliEMCALRecoUtils
21 // Some utilities to recalculate the cluster position or energy linearity
24 // Author: Gustavo Conesa (LPSC- Grenoble)
25 // Track matching part: Rongrong Ma (Yale)
27 ///////////////////////////////////////////////////////////////////////////////
30 // standard C++ includes
31 //#include <Riostream.h>
34 #include <TGeoManager.h>
35 #include <TGeoMatrix.h>
40 #include <TObjArray.h>
43 #include "AliVCluster.h"
44 #include "AliVCaloCells.h"
47 #include "AliESDEvent.h"
48 #include "AliAODEvent.h"
49 #include "AliESDtrack.h"
50 #include "AliAODTrack.h"
51 #include "AliExternalTrackParam.h"
52 #include "AliESDfriendTrack.h"
53 #include "AliTrackerBase.h"
56 #include "AliEMCALRecoUtils.h"
57 #include "AliEMCALGeometry.h"
58 #include "AliTrackerBase.h"
59 #include "AliEMCALPIDUtils.h"
62 ClassImp(AliEMCALRecoUtils)
64 //_____________________________________
65 AliEMCALRecoUtils::AliEMCALRecoUtils():
66 fParticleType(0), fPosAlgo(0), fW0(0),
67 fNonLinearityFunction(0), fNonLinearThreshold(0),
68 fSmearClusterEnergy(kFALSE), fRandom(),
69 fCellsRecalibrated(kFALSE), fRecalibration(kFALSE), fEMCALRecalibrationFactors(),
70 fTimeRecalibration(kFALSE), fEMCALTimeRecalibrationFactors(), fUseRunCorrectionFactors(kFALSE),
71 fRemoveBadChannels(kFALSE), fRecalDistToBadChannels(kFALSE), fEMCALBadChannelMap(),
72 fNCellsFromEMCALBorder(0), fNoEMCALBorderAtEta0(kTRUE),
73 fRejectExoticCluster(kFALSE), fRejectExoticCells(kFALSE),
74 fExoticCellFraction(0), fExoticCellDiffTime(0), fExoticCellMinAmplitude(0),
75 fPIDUtils(), fAODFilterMask(0),
76 fMatchedTrackIndex(0x0), fMatchedClusterIndex(0x0),
77 fResidualEta(0x0), fResidualPhi(0x0), fCutEtaPhiSum(kFALSE), fCutEtaPhiSeparate(kFALSE),
78 fCutR(0), fCutEta(0), fCutPhi(0),
79 fClusterWindow(0), fMass(0),
80 fStepSurface(0), fStepCluster(0),
81 fTrackCutsType(0), fCutMinTrackPt(0), fCutMinNClusterTPC(0),
82 fCutMinNClusterITS(0), fCutMaxChi2PerClusterTPC(0), fCutMaxChi2PerClusterITS(0),
83 fCutRequireTPCRefit(kFALSE), fCutRequireITSRefit(kFALSE), fCutAcceptKinkDaughters(kFALSE),
84 fCutMaxDCAToVertexXY(0), fCutMaxDCAToVertexZ(0), fCutDCAToVertex2D(kFALSE)
88 // Initialize all constant values which have to be used
89 // during Reco algorithm execution
96 fMatchedTrackIndex = new TArrayI();
97 fMatchedClusterIndex = new TArrayI();
98 fResidualPhi = new TArrayF();
99 fResidualEta = new TArrayF();
100 fPIDUtils = new AliEMCALPIDUtils();
105 //______________________________________________________________________
106 AliEMCALRecoUtils::AliEMCALRecoUtils(const AliEMCALRecoUtils & reco)
108 fParticleType(reco.fParticleType), fPosAlgo(reco.fPosAlgo), fW0(reco.fW0),
109 fNonLinearityFunction(reco.fNonLinearityFunction), fNonLinearThreshold(reco.fNonLinearThreshold),
110 fSmearClusterEnergy(reco.fSmearClusterEnergy), fRandom(),
111 fCellsRecalibrated(reco.fCellsRecalibrated),
112 fRecalibration(reco.fRecalibration), fEMCALRecalibrationFactors(reco.fEMCALRecalibrationFactors),
113 fTimeRecalibration(reco.fTimeRecalibration), fEMCALTimeRecalibrationFactors(reco.fEMCALTimeRecalibrationFactors),
114 fUseRunCorrectionFactors(reco.fUseRunCorrectionFactors),
115 fRemoveBadChannels(reco.fRemoveBadChannels), fRecalDistToBadChannels(reco.fRecalDistToBadChannels),
116 fEMCALBadChannelMap(reco.fEMCALBadChannelMap),
117 fNCellsFromEMCALBorder(reco.fNCellsFromEMCALBorder), fNoEMCALBorderAtEta0(reco.fNoEMCALBorderAtEta0),
118 fRejectExoticCluster(reco.fRejectExoticCluster), fRejectExoticCells(reco.fRejectExoticCells),
119 fExoticCellFraction(reco.fExoticCellFraction), fExoticCellDiffTime(reco.fExoticCellDiffTime),
120 fExoticCellMinAmplitude(reco.fExoticCellMinAmplitude),
121 fPIDUtils(reco.fPIDUtils), fAODFilterMask(reco.fAODFilterMask),
122 fMatchedTrackIndex( reco.fMatchedTrackIndex? new TArrayI(*reco.fMatchedTrackIndex):0x0),
123 fMatchedClusterIndex(reco.fMatchedClusterIndex?new TArrayI(*reco.fMatchedClusterIndex):0x0),
124 fResidualEta( reco.fResidualEta? new TArrayF(*reco.fResidualEta):0x0),
125 fResidualPhi( reco.fResidualPhi? new TArrayF(*reco.fResidualPhi):0x0),
126 fCutEtaPhiSum(reco.fCutEtaPhiSum), fCutEtaPhiSeparate(reco.fCutEtaPhiSeparate),
127 fCutR(reco.fCutR), fCutEta(reco.fCutEta), fCutPhi(reco.fCutPhi),
128 fClusterWindow(reco.fClusterWindow),
129 fMass(reco.fMass), fStepSurface(reco.fStepSurface), fStepCluster(reco.fStepCluster),
130 fTrackCutsType(reco.fTrackCutsType), fCutMinTrackPt(reco.fCutMinTrackPt),
131 fCutMinNClusterTPC(reco.fCutMinNClusterTPC), fCutMinNClusterITS(reco.fCutMinNClusterITS),
132 fCutMaxChi2PerClusterTPC(reco.fCutMaxChi2PerClusterTPC), fCutMaxChi2PerClusterITS(reco.fCutMaxChi2PerClusterITS),
133 fCutRequireTPCRefit(reco.fCutRequireTPCRefit), fCutRequireITSRefit(reco.fCutRequireITSRefit),
134 fCutAcceptKinkDaughters(reco.fCutAcceptKinkDaughters), fCutMaxDCAToVertexXY(reco.fCutMaxDCAToVertexXY),
135 fCutMaxDCAToVertexZ(reco.fCutMaxDCAToVertexZ), fCutDCAToVertex2D(reco.fCutDCAToVertex2D)
139 for(Int_t i = 0; i < 15 ; i++) { fMisalRotShift[i] = reco.fMisalRotShift[i] ;
140 fMisalTransShift[i] = reco.fMisalTransShift[i] ; }
141 for(Int_t i = 0; i < 7 ; i++) { fNonLinearityParams[i] = reco.fNonLinearityParams[i] ; }
142 for(Int_t i = 0; i < 3 ; i++) { fSmearClusterParam[i] = reco.fSmearClusterParam[i] ; }
147 //______________________________________________________________________
148 AliEMCALRecoUtils & AliEMCALRecoUtils::operator = (const AliEMCALRecoUtils & reco)
150 //Assignment operator
152 if(this == &reco)return *this;
153 ((TNamed *)this)->operator=(reco);
155 for(Int_t i = 0; i < 15 ; i++) { fMisalTransShift[i] = reco.fMisalTransShift[i] ;
156 fMisalRotShift[i] = reco.fMisalRotShift[i] ; }
157 for(Int_t i = 0; i < 7 ; i++) { fNonLinearityParams[i] = reco.fNonLinearityParams[i] ; }
158 for(Int_t i = 0; i < 3 ; i++) { fSmearClusterParam[i] = reco.fSmearClusterParam[i] ; }
160 fParticleType = reco.fParticleType;
161 fPosAlgo = reco.fPosAlgo;
164 fNonLinearityFunction = reco.fNonLinearityFunction;
165 fNonLinearThreshold = reco.fNonLinearThreshold;
166 fSmearClusterEnergy = reco.fSmearClusterEnergy;
168 fCellsRecalibrated = reco.fCellsRecalibrated;
169 fRecalibration = reco.fRecalibration;
170 fEMCALRecalibrationFactors = reco.fEMCALRecalibrationFactors;
172 fTimeRecalibration = reco.fTimeRecalibration;
173 fEMCALTimeRecalibrationFactors = reco.fEMCALTimeRecalibrationFactors;
175 fUseRunCorrectionFactors = reco.fUseRunCorrectionFactors;
177 fRemoveBadChannels = reco.fRemoveBadChannels;
178 fRecalDistToBadChannels = reco.fRecalDistToBadChannels;
179 fEMCALBadChannelMap = reco.fEMCALBadChannelMap;
181 fNCellsFromEMCALBorder = reco.fNCellsFromEMCALBorder;
182 fNoEMCALBorderAtEta0 = reco.fNoEMCALBorderAtEta0;
184 fRejectExoticCluster = reco.fRejectExoticCluster;
185 fRejectExoticCells = reco.fRejectExoticCells;
186 fExoticCellFraction = reco.fExoticCellFraction;
187 fExoticCellDiffTime = reco.fExoticCellDiffTime;
188 fExoticCellMinAmplitude = reco.fExoticCellMinAmplitude;
190 fPIDUtils = reco.fPIDUtils;
192 fAODFilterMask = reco.fAODFilterMask;
194 fCutEtaPhiSum = reco.fCutEtaPhiSum;
195 fCutEtaPhiSeparate = reco.fCutEtaPhiSeparate;
197 fCutEta = reco.fCutEta;
198 fCutPhi = reco.fCutPhi;
199 fClusterWindow = reco.fClusterWindow;
201 fStepSurface = reco.fStepSurface;
202 fStepCluster = reco.fStepCluster;
204 fTrackCutsType = reco.fTrackCutsType;
205 fCutMinTrackPt = reco.fCutMinTrackPt;
206 fCutMinNClusterTPC = reco.fCutMinNClusterTPC;
207 fCutMinNClusterITS = reco.fCutMinNClusterITS;
208 fCutMaxChi2PerClusterTPC = reco.fCutMaxChi2PerClusterTPC;
209 fCutMaxChi2PerClusterITS = reco.fCutMaxChi2PerClusterITS;
210 fCutRequireTPCRefit = reco.fCutRequireTPCRefit;
211 fCutRequireITSRefit = reco.fCutRequireITSRefit;
212 fCutAcceptKinkDaughters = reco.fCutAcceptKinkDaughters;
213 fCutMaxDCAToVertexXY = reco.fCutMaxDCAToVertexXY;
214 fCutMaxDCAToVertexZ = reco.fCutMaxDCAToVertexZ;
215 fCutDCAToVertex2D = reco.fCutDCAToVertex2D;
217 if(reco.fResidualEta)
219 // assign or copy construct
222 *fResidualEta = *reco.fResidualEta;
226 fResidualEta = new TArrayF(*reco.fResidualEta);
231 if(fResidualEta)delete fResidualEta;
235 if(reco.fResidualPhi)
237 // assign or copy construct
240 *fResidualPhi = *reco.fResidualPhi;
244 fResidualPhi = new TArrayF(*reco.fResidualPhi);
249 if(fResidualPhi)delete fResidualPhi;
253 if(reco.fMatchedTrackIndex)
255 // assign or copy construct
256 if(fMatchedTrackIndex)
258 *fMatchedTrackIndex = *reco.fMatchedTrackIndex;
262 fMatchedTrackIndex = new TArrayI(*reco.fMatchedTrackIndex);
267 if(fMatchedTrackIndex)delete fMatchedTrackIndex;
268 fMatchedTrackIndex = 0;
271 if(reco.fMatchedClusterIndex)
273 // assign or copy construct
274 if(fMatchedClusterIndex)
276 *fMatchedClusterIndex = *reco.fMatchedClusterIndex;
280 fMatchedClusterIndex = new TArrayI(*reco.fMatchedClusterIndex);
285 if(fMatchedClusterIndex)delete fMatchedClusterIndex;
286 fMatchedClusterIndex = 0;
293 //_____________________________________
294 AliEMCALRecoUtils::~AliEMCALRecoUtils()
298 if(fEMCALRecalibrationFactors)
300 fEMCALRecalibrationFactors->Clear();
301 delete fEMCALRecalibrationFactors;
304 if(fEMCALTimeRecalibrationFactors)
306 fEMCALTimeRecalibrationFactors->Clear();
307 delete fEMCALTimeRecalibrationFactors;
310 if(fEMCALBadChannelMap)
312 fEMCALBadChannelMap->Clear();
313 delete fEMCALBadChannelMap;
316 delete fMatchedTrackIndex ;
317 delete fMatchedClusterIndex ;
318 delete fResidualEta ;
319 delete fResidualPhi ;
325 //_______________________________________________________________________________
326 Bool_t AliEMCALRecoUtils::AcceptCalibrateCell(const Int_t absID, const Int_t bc,
327 Float_t & amp, Double_t & time,
328 AliVCaloCells* cells)
330 // Reject cell if criteria not passed and calibrate it
332 AliEMCALGeometry* geom = AliEMCALGeometry::GetInstance();
334 if(absID < 0 || absID >= 24*48*geom->GetNumberOfSuperModules()) return kFALSE;
336 Int_t imod = -1, iphi =-1, ieta=-1,iTower = -1, iIphi = -1, iIeta = -1;
338 if(!geom->GetCellIndex(absID,imod,iTower,iIphi,iIeta))
340 // cell absID does not exist
345 geom->GetCellPhiEtaIndexInSModule(imod,iTower,iIphi, iIeta,iphi,ieta);
347 // Do not include bad channels found in analysis,
348 if( IsBadChannelsRemovalSwitchedOn() && GetEMCALChannelStatus(imod, ieta, iphi))
354 amp = cells->GetCellAmplitude(absID);
355 if(!fCellsRecalibrated && IsRecalibrationOn())
356 amp *= GetEMCALChannelRecalibrationFactor(imod,ieta,iphi);
360 time = cells->GetCellTime(absID);
362 RecalibrateCellTime(absID,bc,time);
367 //_____________________________________________________________________________
368 Bool_t AliEMCALRecoUtils::CheckCellFiducialRegion(const AliEMCALGeometry* geom,
369 const AliVCluster* cluster,
370 AliVCaloCells* cells)
372 // Given the list of AbsId of the cluster, get the maximum cell and
373 // check if there are fNCellsFromBorder from the calorimeter border
377 AliInfo("Cluster pointer null!");
381 //If the distance to the border is 0 or negative just exit accept all clusters
382 if(cells->GetType()==AliVCaloCells::kEMCALCell && fNCellsFromEMCALBorder <= 0 ) return kTRUE;
384 Int_t absIdMax = -1, iSM =-1, ieta = -1, iphi = -1;
385 Bool_t shared = kFALSE;
386 GetMaxEnergyCell(geom, cells, cluster, absIdMax, iSM, ieta, iphi, shared);
388 AliDebug(2,Form("Cluster Max AbsId %d, Cell Energy %2.2f, Cluster Energy %2.2f, Ncells from border %d, EMCAL eta=0 %d\n",
389 absIdMax, cells->GetCellAmplitude(absIdMax), cluster->E(), fNCellsFromEMCALBorder, fNoEMCALBorderAtEta0));
391 if(absIdMax==-1) return kFALSE;
393 //Check if the cell is close to the borders:
394 Bool_t okrow = kFALSE;
395 Bool_t okcol = kFALSE;
397 if(iSM < 0 || iphi < 0 || ieta < 0 )
399 AliFatal(Form("Negative value for super module: %d, or cell ieta: %d, or cell iphi: %d, check EMCAL geometry name\n",
406 if(iphi >= fNCellsFromEMCALBorder && iphi < 24-fNCellsFromEMCALBorder) okrow =kTRUE;
408 else if (iSM >=10 && ( ( geom->GetEMCGeometry()->GetGeoName()).Contains("12SMV1")))
410 if(iphi >= fNCellsFromEMCALBorder && iphi < 8-fNCellsFromEMCALBorder) okrow =kTRUE; //1/3 sm case
414 if(iphi >= fNCellsFromEMCALBorder && iphi < 12-fNCellsFromEMCALBorder) okrow =kTRUE; // half SM case
418 if(!fNoEMCALBorderAtEta0)
420 if(ieta > fNCellsFromEMCALBorder && ieta < 48-fNCellsFromEMCALBorder) okcol =kTRUE;
426 if(ieta >= fNCellsFromEMCALBorder) okcol = kTRUE;
430 if(ieta < 48-fNCellsFromEMCALBorder) okcol = kTRUE;
434 AliDebug(2,Form("EMCAL Cluster in %d cells fiducial volume: ieta %d, iphi %d, SM %d: column? %d, row? %d\nq",
435 fNCellsFromEMCALBorder, ieta, iphi, iSM, okcol, okrow));
439 //printf("Accept\n");
444 //printf("Reject\n");
445 AliDebug(2,Form("Reject cluster in border, max cell : ieta %d, iphi %d, SM %d\n",ieta, iphi, iSM));
452 //_______________________________________________________________________________
453 Bool_t AliEMCALRecoUtils::ClusterContainsBadChannel(const AliEMCALGeometry* geom,
454 const UShort_t* cellList,
457 // Check that in the cluster cells, there is no bad channel of those stored
458 // in fEMCALBadChannelMap or fPHOSBadChannelMap
460 if(!fRemoveBadChannels) return kFALSE;
461 if(!fEMCALBadChannelMap) return kFALSE;
466 for(Int_t iCell = 0; iCell<nCells; iCell++)
468 //Get the column and row
469 Int_t iTower = -1, iIphi = -1, iIeta = -1;
470 geom->GetCellIndex(cellList[iCell],imod,iTower,iIphi,iIeta);
471 if(fEMCALBadChannelMap->GetEntries() <= imod) continue;
472 geom->GetCellPhiEtaIndexInSModule(imod,iTower,iIphi, iIeta,irow,icol);
473 if(GetEMCALChannelStatus(imod, icol, irow))
475 AliDebug(2,Form("Cluster with bad channel: SM %d, col %d, row %d\n",imod, icol, irow));
479 }// cell cluster loop
485 //___________________________________________________________________________
486 Float_t AliEMCALRecoUtils::GetECross(const Int_t absID, const Double_t tcell,
487 AliVCaloCells* cells, const Int_t bc)
489 //Calculate the energy in the cross around the energy given cell
491 AliEMCALGeometry * geom = AliEMCALGeometry::GetInstance();
493 Int_t imod = -1, iphi =-1, ieta=-1,iTower = -1, iIphi = -1, iIeta = -1;
494 geom->GetCellIndex(absID,imod,iTower,iIphi,iIeta);
495 geom->GetCellPhiEtaIndexInSModule(imod,iTower,iIphi, iIeta,iphi,ieta);
497 //Get close cells index, energy and time, not in corners
502 if( iphi < AliEMCALGeoParams::fgkEMCALRows-1) absID1 = geom-> GetAbsCellIdFromCellIndexes(imod, iphi+1, ieta);
503 if( iphi > 0 ) absID2 = geom-> GetAbsCellIdFromCellIndexes(imod, iphi-1, ieta);
505 // In case of cell in eta = 0 border, depending on SM shift the cross cell index
510 if ( ieta == AliEMCALGeoParams::fgkEMCALCols-1 && !(imod%2) )
512 absID3 = geom-> GetAbsCellIdFromCellIndexes(imod+1, iphi, 0);
513 absID4 = geom-> GetAbsCellIdFromCellIndexes(imod, iphi, ieta-1);
515 else if( ieta == 0 && imod%2 )
517 absID3 = geom-> GetAbsCellIdFromCellIndexes(imod, iphi, ieta+1);
518 absID4 = geom-> GetAbsCellIdFromCellIndexes(imod-1, iphi, AliEMCALGeoParams::fgkEMCALCols-1);
522 if( ieta < AliEMCALGeoParams::fgkEMCALCols-1 )
523 absID3 = geom-> GetAbsCellIdFromCellIndexes(imod, iphi, ieta+1);
525 absID4 = geom-> GetAbsCellIdFromCellIndexes(imod, iphi, ieta-1);
528 //printf("IMOD %d, AbsId %d, a %d, b %d, c %d e %d \n",imod,absID,absID1,absID2,absID3,absID4);
530 Float_t ecell1 = 0, ecell2 = 0, ecell3 = 0, ecell4 = 0;
531 Double_t tcell1 = 0, tcell2 = 0, tcell3 = 0, tcell4 = 0;
532 Bool_t accept1 = 0, accept2 = 0, accept3 = 0, accept4 = 0;
534 accept1 = AcceptCalibrateCell(absID1,bc, ecell1,tcell1,cells);
535 accept2 = AcceptCalibrateCell(absID2,bc, ecell2,tcell2,cells);
536 accept3 = AcceptCalibrateCell(absID3,bc, ecell3,tcell3,cells);
537 accept4 = AcceptCalibrateCell(absID4,bc, ecell4,tcell4,cells);
540 printf("Cell absID %d \n",absID);
541 printf("\t accept1 %d, accept2 %d, accept3 %d, accept4 %d\n",
542 accept1,accept2,accept3,accept4);
543 printf("\t id %d: id1 %d, id2 %d, id3 %d, id4 %d\n",
544 absID,absID1,absID2,absID3,absID4);
545 printf("\t e %f: e1 %f, e2 %f, e3 %f, e4 %f\n",
546 ecell,ecell1,ecell2,ecell3,ecell4);
547 printf("\t t %f: t1 %f, t2 %f, t3 %f, t4 %f;\n dt1 %f, dt2 %f, dt3 %f, dt4 %f\n",
548 tcell*1.e9,tcell1*1.e9,tcell2*1.e9,tcell3*1.e9,tcell4*1.e9,
549 TMath::Abs(tcell-tcell1)*1.e9, TMath::Abs(tcell-tcell2)*1.e9, TMath::Abs(tcell-tcell3)*1.e9, TMath::Abs(tcell-tcell4)*1.e9);
552 if(TMath::Abs(tcell-tcell1)*1.e9 > fExoticCellDiffTime) ecell1 = 0 ;
553 if(TMath::Abs(tcell-tcell2)*1.e9 > fExoticCellDiffTime) ecell2 = 0 ;
554 if(TMath::Abs(tcell-tcell3)*1.e9 > fExoticCellDiffTime) ecell3 = 0 ;
555 if(TMath::Abs(tcell-tcell4)*1.e9 > fExoticCellDiffTime) ecell4 = 0 ;
557 return ecell1+ecell2+ecell3+ecell4;
561 //_____________________________________________________________________________________________
562 Bool_t AliEMCALRecoUtils::IsExoticCell(const Int_t absID, AliVCaloCells* cells, const Int_t bc)
564 // Look to cell neighbourhood and reject if it seems exotic
565 // Do before recalibrating the cells
567 if(!fRejectExoticCells) return kFALSE;
571 Bool_t accept = AcceptCalibrateCell(absID, bc, ecell ,tcell ,cells);
573 if(!accept) return kTRUE; // reject this cell
575 if(ecell < fExoticCellMinAmplitude) return kFALSE; // do not reject low energy cells
577 Float_t eCross = GetECross(absID,tcell,cells,bc);
579 if(1-eCross/ecell > fExoticCellFraction)
581 AliDebug(2,Form("AliEMCALRecoUtils::IsExoticCell() - EXOTIC CELL id %d, eCell %f, eCross %f, 1-eCross/eCell %f\n",
582 absID,ecell,eCross,1-eCross/ecell));
589 //___________________________________________________________________
590 Bool_t AliEMCALRecoUtils::IsExoticCluster(const AliVCluster *cluster,
591 AliVCaloCells *cells,
594 // Check if the cluster highest energy tower is exotic
598 AliInfo("Cluster pointer null!");
602 if(!fRejectExoticCluster) return kFALSE;
604 // Get highest energy tower
605 AliEMCALGeometry* geom = AliEMCALGeometry::GetInstance();
606 Int_t iSupMod = -1, absId = -1, ieta = -1, iphi = -1;
607 Bool_t shared = kFALSE;
608 GetMaxEnergyCell(geom, cells, cluster, absId, iSupMod, ieta, iphi, shared);
610 return IsExoticCell(absId,cells,bc);
614 //_______________________________________________________________________
615 Float_t AliEMCALRecoUtils::SmearClusterEnergy(const AliVCluster* cluster)
617 //In case of MC analysis, smear energy to match resolution/calibration in real data
621 AliInfo("Cluster pointer null!");
625 Float_t energy = cluster->E() ;
626 Float_t rdmEnergy = energy ;
627 if(fSmearClusterEnergy)
629 rdmEnergy = fRandom.Gaus(energy,fSmearClusterParam[0] * TMath::Sqrt(energy) +
630 fSmearClusterParam[1] * energy +
631 fSmearClusterParam[2] );
632 AliDebug(2, Form("Energy: original %f, smeared %f\n", energy, rdmEnergy));
638 //____________________________________________________________________________
639 Float_t AliEMCALRecoUtils::CorrectClusterEnergyLinearity(AliVCluster* cluster)
641 // Correct cluster energy from non linearity functions
645 AliInfo("Cluster pointer null!");
649 Float_t energy = cluster->E();
651 switch (fNonLinearityFunction)
656 //Non-Linearity correction (from MC with function ([0]*exp(-[1]/E))+(([2]/([3]*2.*TMath::Pi())*exp(-(E-[4])^2/(2.*[3]^2)))))
657 //fNonLinearityParams[0] = 1.014;
658 //fNonLinearityParams[1] =-0.03329;
659 //fNonLinearityParams[2] =-0.3853;
660 //fNonLinearityParams[3] = 0.5423;
661 //fNonLinearityParams[4] =-0.4335;
662 energy *= (fNonLinearityParams[0]*exp(-fNonLinearityParams[1]/energy))+
663 ((fNonLinearityParams[2]/(fNonLinearityParams[3]*2.*TMath::Pi())*
664 exp(-(energy-fNonLinearityParams[4])*(energy-fNonLinearityParams[4])/(2.*fNonLinearityParams[3]*fNonLinearityParams[3]))));
670 //Non-Linearity correction (from MC with function [0]/((x+[1])^[2]))+1;
671 //fNonLinearityParams[0] = 3.11111e-02;
672 //fNonLinearityParams[1] =-5.71666e-02;
673 //fNonLinearityParams[2] = 5.67995e-01;
675 energy *= fNonLinearityParams[0]/TMath::Power(energy+fNonLinearityParams[1],fNonLinearityParams[2])+1;
681 //Same as beam test corrected, change parameters
682 //fNonLinearityParams[0] = 9.81039e-01
683 //fNonLinearityParams[1] = 1.13508e-01;
684 //fNonLinearityParams[2] = 1.00173e+00;
685 //fNonLinearityParams[3] = 9.67998e-02;
686 //fNonLinearityParams[4] = 2.19381e+02;
687 //fNonLinearityParams[5] = 6.31604e+01;
688 //fNonLinearityParams[6] = 1;
689 energy *= fNonLinearityParams[6]/(fNonLinearityParams[0]*(1./(1.+fNonLinearityParams[1]*exp(-energy/fNonLinearityParams[2]))*1./(1.+fNonLinearityParams[3]*exp((energy-fNonLinearityParams[4])/fNonLinearityParams[5]))));
697 //Non-Linearity correction (from Olga Data with function p0+p1*exp(-p2*E))
698 //fNonLinearityParams[0] = 1.04;
699 //fNonLinearityParams[1] = -0.1445;
700 //fNonLinearityParams[2] = 1.046;
701 energy /= (fNonLinearityParams[0]+fNonLinearityParams[1]*exp(-fNonLinearityParams[2]*energy)); //Olga function
705 case kPi0GammaConversion:
707 //Non-Linearity correction (Nicolas from Dimitri Data with function C*[1-a*exp(-b*E)])
708 //fNonLinearityParams[0] = 0.139393/0.1349766;
709 //fNonLinearityParams[1] = 0.0566186;
710 //fNonLinearityParams[2] = 0.982133;
711 energy /= fNonLinearityParams[0]*(1-fNonLinearityParams[1]*exp(-fNonLinearityParams[2]*energy));
718 //From beam test, Alexei's results, for different ZS thresholds
719 // th=30 MeV; th = 45 MeV; th = 75 MeV
720 //fNonLinearityParams[0] = 1.007; 1.003; 1.002
721 //fNonLinearityParams[1] = 0.894; 0.719; 0.797
722 //fNonLinearityParams[2] = 0.246; 0.334; 0.358
723 //Rescale the param[0] with 1.03
724 energy /= fNonLinearityParams[0]/(1+fNonLinearityParams[1]*exp(-energy/fNonLinearityParams[2]));
729 case kBeamTestCorrected:
731 //From beam test, corrected for material between beam and EMCAL
732 //fNonLinearityParams[0] = 0.99078
733 //fNonLinearityParams[1] = 0.161499;
734 //fNonLinearityParams[2] = 0.655166;
735 //fNonLinearityParams[3] = 0.134101;
736 //fNonLinearityParams[4] = 163.282;
737 //fNonLinearityParams[5] = 23.6904;
738 //fNonLinearityParams[6] = 0.978;
739 energy *= fNonLinearityParams[6]/(fNonLinearityParams[0]*(1./(1.+fNonLinearityParams[1]*exp(-energy/fNonLinearityParams[2]))*1./(1.+fNonLinearityParams[3]*exp((energy-fNonLinearityParams[4])/fNonLinearityParams[5]))));
745 AliDebug(2,"No correction on the energy\n");
753 //__________________________________________________
754 void AliEMCALRecoUtils::InitNonLinearityParam()
756 //Initialising Non Linearity Parameters
758 if(fNonLinearityFunction == kPi0MC)
760 fNonLinearityParams[0] = 1.014;
761 fNonLinearityParams[1] = -0.03329;
762 fNonLinearityParams[2] = -0.3853;
763 fNonLinearityParams[3] = 0.5423;
764 fNonLinearityParams[4] = -0.4335;
767 if(fNonLinearityFunction == kPi0MCv2)
769 fNonLinearityParams[0] = 3.11111e-02;
770 fNonLinearityParams[1] =-5.71666e-02;
771 fNonLinearityParams[2] = 5.67995e-01;
774 if(fNonLinearityFunction == kPi0MCv3)
776 fNonLinearityParams[0] = 9.81039e-01;
777 fNonLinearityParams[1] = 1.13508e-01;
778 fNonLinearityParams[2] = 1.00173e+00;
779 fNonLinearityParams[3] = 9.67998e-02;
780 fNonLinearityParams[4] = 2.19381e+02;
781 fNonLinearityParams[5] = 6.31604e+01;
782 fNonLinearityParams[6] = 1;
785 if(fNonLinearityFunction == kPi0GammaGamma)
787 fNonLinearityParams[0] = 1.04;
788 fNonLinearityParams[1] = -0.1445;
789 fNonLinearityParams[2] = 1.046;
792 if(fNonLinearityFunction == kPi0GammaConversion)
794 fNonLinearityParams[0] = 0.139393;
795 fNonLinearityParams[1] = 0.0566186;
796 fNonLinearityParams[2] = 0.982133;
799 if(fNonLinearityFunction == kBeamTest)
801 if(fNonLinearThreshold == 30)
803 fNonLinearityParams[0] = 1.007;
804 fNonLinearityParams[1] = 0.894;
805 fNonLinearityParams[2] = 0.246;
807 if(fNonLinearThreshold == 45)
809 fNonLinearityParams[0] = 1.003;
810 fNonLinearityParams[1] = 0.719;
811 fNonLinearityParams[2] = 0.334;
813 if(fNonLinearThreshold == 75)
815 fNonLinearityParams[0] = 1.002;
816 fNonLinearityParams[1] = 0.797;
817 fNonLinearityParams[2] = 0.358;
821 if(fNonLinearityFunction == kBeamTestCorrected)
823 fNonLinearityParams[0] = 0.99078;
824 fNonLinearityParams[1] = 0.161499;
825 fNonLinearityParams[2] = 0.655166;
826 fNonLinearityParams[3] = 0.134101;
827 fNonLinearityParams[4] = 163.282;
828 fNonLinearityParams[5] = 23.6904;
829 fNonLinearityParams[6] = 0.978;
833 //_________________________________________________________
834 Float_t AliEMCALRecoUtils::GetDepth(const Float_t energy,
835 const Int_t iParticle,
836 const Int_t iSM) const
838 //Calculate shower depth for a given cluster energy and particle type
848 depth = x0 * (TMath::Log(energy*1000/ ecr) + 0.5); //Multiply energy by 1000 to transform to MeV
852 depth = x0 * (TMath::Log(energy*1000/ ecr) - 0.5); //Multiply energy by 1000 to transform to MeV
860 gGeoManager->cd("ALIC_1/XEN1_1");
861 TGeoNode *geoXEn1 = gGeoManager->GetCurrentNode();
862 TGeoNodeMatrix *geoSM = dynamic_cast<TGeoNodeMatrix *>(geoXEn1->GetDaughter(iSM));
865 TGeoVolume *geoSMVol = geoSM->GetVolume();
866 TGeoShape *geoSMShape = geoSMVol->GetShape();
867 TGeoBBox *geoBox = dynamic_cast<TGeoBBox *>(geoSMShape);
868 if(geoBox) depth = 0.5 * geoBox->GetDX()*2 ;
869 else AliFatal("Null GEANT box");
871 else AliFatal("NULL GEANT node matrix");
875 depth = x0 * (TMath::Log(energy*1000 / ecr) - 0.5); //Multiply energy by 1000 to transform to MeV
881 depth = x0 * (TMath::Log(energy*1000 / ecr) + 0.5); //Multiply energy by 1000 to transform to MeV
887 //____________________________________________________________________
888 void AliEMCALRecoUtils::GetMaxEnergyCell(const AliEMCALGeometry *geom,
889 AliVCaloCells* cells,
890 const AliVCluster* clu,
897 //For a given CaloCluster gets the absId of the cell
898 //with maximum energy deposit.
901 Double_t eCell = -1.;
902 Float_t fraction = 1.;
903 Float_t recalFactor = 1.;
904 Int_t cellAbsId = -1 ;
913 AliInfo("Cluster pointer null!");
914 absId=-1; iSupMod0=-1, ieta = -1; iphi = -1; shared = -1;
918 for (Int_t iDig=0; iDig< clu->GetNCells(); iDig++)
920 cellAbsId = clu->GetCellAbsId(iDig);
921 fraction = clu->GetCellAmplitudeFraction(iDig);
922 //printf("a Cell %d, id, %d, amp %f, fraction %f\n",iDig,cellAbsId,cells->GetCellAmplitude(cellAbsId),fraction);
923 if(fraction < 1e-4) fraction = 1.; // in case unfolding is off
924 geom->GetCellIndex(cellAbsId,iSupMod,iTower,iIphi,iIeta);
925 geom->GetCellPhiEtaIndexInSModule(iSupMod,iTower,iIphi, iIeta,iphi,ieta);
930 else if(iSupMod0!=iSupMod)
933 //printf("AliEMCALRecoUtils::GetMaxEnergyCell() - SHARED CLUSTER\n");
935 if(!fCellsRecalibrated && IsRecalibrationOn())
937 recalFactor = GetEMCALChannelRecalibrationFactor(iSupMod,ieta,iphi);
939 eCell = cells->GetCellAmplitude(cellAbsId)*fraction*recalFactor;
940 //printf("b Cell %d, id, %d, amp %f, fraction %f\n",iDig,cellAbsId,eCell,fraction);
945 //printf("\t new max: cell %d, e %f, ecell %f\n",maxId, eMax,eCell);
949 //Get from the absid the supermodule, tower and eta/phi numbers
950 geom->GetCellIndex(absId,iSupMod,iTower,iIphi,iIeta);
951 //Gives SuperModule and Tower numbers
952 geom->GetCellPhiEtaIndexInSModule(iSupMod,iTower,
953 iIphi, iIeta,iphi,ieta);
954 //printf("Max id %d, iSM %d, col %d, row %d\n",absId,iSupMod,ieta,iphi);
955 //printf("Max end---\n");
958 //______________________________________
959 void AliEMCALRecoUtils::InitParameters()
961 // Initialize data members with default values
963 fParticleType = kPhoton;
964 fPosAlgo = kUnchanged;
967 fNonLinearityFunction = kNoCorrection;
968 fNonLinearThreshold = 30;
970 fExoticCellFraction = 0.97;
971 fExoticCellDiffTime = 1e6;
972 fExoticCellMinAmplitude = 0.5;
976 fCutEtaPhiSum = kTRUE;
977 fCutEtaPhiSeparate = kFALSE;
983 fClusterWindow = 100;
988 fTrackCutsType = kLooseCut;
991 fCutMinNClusterTPC = -1;
992 fCutMinNClusterITS = -1;
994 fCutMaxChi2PerClusterTPC = 1e10;
995 fCutMaxChi2PerClusterITS = 1e10;
997 fCutRequireTPCRefit = kFALSE;
998 fCutRequireITSRefit = kFALSE;
999 fCutAcceptKinkDaughters = kFALSE;
1001 fCutMaxDCAToVertexXY = 1e10;
1002 fCutMaxDCAToVertexZ = 1e10;
1003 fCutDCAToVertex2D = kFALSE;
1006 //Misalignment matrices
1007 for(Int_t i = 0; i < 15 ; i++)
1009 fMisalTransShift[i] = 0.;
1010 fMisalRotShift[i] = 0.;
1014 for(Int_t i = 0; i < 7 ; i++) fNonLinearityParams[i] = 0.;
1016 //For kBeamTestCorrected case, but default is no correction
1017 fNonLinearityParams[0] = 0.99078;
1018 fNonLinearityParams[1] = 0.161499;
1019 fNonLinearityParams[2] = 0.655166;
1020 fNonLinearityParams[3] = 0.134101;
1021 fNonLinearityParams[4] = 163.282;
1022 fNonLinearityParams[5] = 23.6904;
1023 fNonLinearityParams[6] = 0.978;
1025 //For kPi0GammaGamma case
1026 //fNonLinearityParams[0] = 0.1457/0.1349766/1.038;
1027 //fNonLinearityParams[1] = -0.02024/0.1349766/1.038;
1028 //fNonLinearityParams[2] = 1.046;
1030 //Cluster energy smearing
1031 fSmearClusterEnergy = kFALSE;
1032 fSmearClusterParam[0] = 0.07; // * sqrt E term
1033 fSmearClusterParam[1] = 0.00; // * E term
1034 fSmearClusterParam[2] = 0.00; // constant
1037 //_____________________________________________________
1038 void AliEMCALRecoUtils::InitEMCALRecalibrationFactors()
1040 //Init EMCAL recalibration factors
1041 AliDebug(2,"AliCalorimeterUtils::InitEMCALRecalibrationFactors()");
1042 //In order to avoid rewriting the same histograms
1043 Bool_t oldStatus = TH1::AddDirectoryStatus();
1044 TH1::AddDirectory(kFALSE);
1046 fEMCALRecalibrationFactors = new TObjArray(12);
1047 for (int i = 0; i < 12; i++)
1048 fEMCALRecalibrationFactors->Add(new TH2F(Form("EMCALRecalFactors_SM%d",i),
1049 Form("EMCALRecalFactors_SM%d",i), 48, 0, 48, 24, 0, 24));
1050 //Init the histograms with 1
1051 for (Int_t sm = 0; sm < 12; sm++)
1053 for (Int_t i = 0; i < 48; i++)
1055 for (Int_t j = 0; j < 24; j++)
1057 SetEMCALChannelRecalibrationFactor(sm,i,j,1.);
1062 fEMCALRecalibrationFactors->SetOwner(kTRUE);
1063 fEMCALRecalibrationFactors->Compress();
1065 //In order to avoid rewriting the same histograms
1066 TH1::AddDirectory(oldStatus);
1069 //_________________________________________________________
1070 void AliEMCALRecoUtils::InitEMCALTimeRecalibrationFactors()
1072 //Init EMCAL recalibration factors
1073 AliDebug(2,"AliCalorimeterUtils::InitEMCALRecalibrationFactors()");
1074 //In order to avoid rewriting the same histograms
1075 Bool_t oldStatus = TH1::AddDirectoryStatus();
1076 TH1::AddDirectory(kFALSE);
1078 fEMCALTimeRecalibrationFactors = new TObjArray(4);
1079 for (int i = 0; i < 4; i++)
1080 fEMCALTimeRecalibrationFactors->Add(new TH1F(Form("hAllTimeAvBC%d",i),
1081 Form("hAllTimeAvBC%d",i),
1082 48*24*12,0.,48*24*12) );
1083 //Init the histograms with 1
1084 for (Int_t bc = 0; bc < 4; bc++)
1086 for (Int_t i = 0; i < 48*24*12; i++)
1087 SetEMCALChannelTimeRecalibrationFactor(bc,i,0.);
1090 fEMCALTimeRecalibrationFactors->SetOwner(kTRUE);
1091 fEMCALTimeRecalibrationFactors->Compress();
1093 //In order to avoid rewriting the same histograms
1094 TH1::AddDirectory(oldStatus);
1097 //____________________________________________________
1098 void AliEMCALRecoUtils::InitEMCALBadChannelStatusMap()
1100 //Init EMCAL bad channels map
1101 AliDebug(2,"AliEMCALRecoUtils::InitEMCALBadChannelStatusMap()");
1102 //In order to avoid rewriting the same histograms
1103 Bool_t oldStatus = TH1::AddDirectoryStatus();
1104 TH1::AddDirectory(kFALSE);
1106 fEMCALBadChannelMap = new TObjArray(12);
1107 //TH2F * hTemp = new TH2I("EMCALBadChannelMap","EMCAL SuperModule bad channel map", 48, 0, 48, 24, 0, 24);
1108 for (int i = 0; i < 12; i++)
1110 fEMCALBadChannelMap->Add(new TH2I(Form("EMCALBadChannelMap_Mod%d",i),Form("EMCALBadChannelMap_Mod%d",i), 48, 0, 48, 24, 0, 24));
1113 fEMCALBadChannelMap->SetOwner(kTRUE);
1114 fEMCALBadChannelMap->Compress();
1116 //In order to avoid rewriting the same histograms
1117 TH1::AddDirectory(oldStatus);
1120 //____________________________________________________________________________
1121 void AliEMCALRecoUtils::RecalibrateClusterEnergy(const AliEMCALGeometry* geom,
1122 AliVCluster * cluster,
1123 AliVCaloCells * cells,
1126 // Recalibrate the cluster energy and Time, considering the recalibration map
1127 // and the energy of the cells and time that compose the cluster.
1128 // bc= bunch crossing number returned by esdevent->GetBunchCrossNumber();
1132 AliInfo("Cluster pointer null!");
1136 //Get the cluster number of cells and list of absId, check what kind of cluster do we have.
1137 UShort_t * index = cluster->GetCellsAbsId() ;
1138 Double_t * fraction = cluster->GetCellsAmplitudeFraction() ;
1139 Int_t ncells = cluster->GetNCells();
1141 //Initialize some used variables
1144 Int_t icol =-1, irow =-1, imod=1;
1145 Float_t factor = 1, frac = 0;
1146 Int_t absIdMax = -1;
1149 //Loop on the cells, get the cell amplitude and recalibration factor, multiply and and to the new energy
1150 for(Int_t icell = 0; icell < ncells; icell++)
1152 absId = index[icell];
1153 frac = fraction[icell];
1154 if(frac < 1e-5) frac = 1; //in case of EMCAL, this is set as 0 since unfolding is off
1156 if(!fCellsRecalibrated && IsRecalibrationOn())
1159 Int_t iTower = -1, iIphi = -1, iIeta = -1;
1160 geom->GetCellIndex(absId,imod,iTower,iIphi,iIeta);
1161 if(fEMCALRecalibrationFactors->GetEntries() <= imod) continue;
1162 geom->GetCellPhiEtaIndexInSModule(imod,iTower,iIphi, iIeta,irow,icol);
1163 factor = GetEMCALChannelRecalibrationFactor(imod,icol,irow);
1165 AliDebug(2,Form("AliEMCALRecoUtils::RecalibrateClusterEnergy - recalibrate cell: module %d, col %d, row %d, cell fraction %f,recalibration factor %f, cell energy %f\n",
1166 imod,icol,irow,frac,factor,cells->GetCellAmplitude(absId)));
1170 energy += cells->GetCellAmplitude(absId)*factor*frac;
1172 if(emax < cells->GetCellAmplitude(absId)*factor*frac)
1174 emax = cells->GetCellAmplitude(absId)*factor*frac;
1179 AliDebug(2,Form("AliEMCALRecoUtils::RecalibrateClusterEnergy - Energy before %f, after %f \n",cluster->E(),energy));
1181 cluster->SetE(energy);
1183 // Recalculate time of cluster
1184 Double_t timeorg = cluster->GetTOF();
1185 if(!fCellsRecalibrated && IsTimeRecalibrationOn())
1187 Double_t time = timeorg;
1188 RecalibrateCellTime(absIdMax,bc,time);
1189 cluster->SetTOF(time);
1192 AliDebug(2,Form("AliEMCALRecoUtils::RecalibrateClusterEnergy - Time before %f, after %f \n",timeorg,cluster->GetTOF()));
1196 //_____________________________________________________________
1197 void AliEMCALRecoUtils::RecalibrateCells(AliVCaloCells * cells,
1200 // Recalibrate the cells time and energy, considering the recalibration map and the energy
1201 // of the cells that compose the cluster.
1202 // bc= bunch crossing number returned by esdevent->GetBunchCrossNumber();
1204 if(!IsRecalibrationOn() && !IsTimeRecalibrationOn()) return;
1208 AliInfo("Cells pointer null!");
1213 Bool_t accept = kFALSE;
1216 Double_t ecellin = 0;
1217 Double_t tcellin = 0;
1218 Short_t mclabel = -1;
1221 Int_t nEMcell = cells->GetNumberOfCells() ;
1222 for (Int_t iCell = 0; iCell < nEMcell; iCell++)
1224 cells->GetCell( iCell, absId, ecellin, tcellin, mclabel, efrac );
1226 accept = AcceptCalibrateCell(absId, bc, ecell ,tcell ,cells);
1234 cells->SetCell(iCell,absId,ecell, tcell, mclabel, efrac);
1237 fCellsRecalibrated = kTRUE;
1240 //_______________________________________________________________________________________________________
1241 void AliEMCALRecoUtils::RecalibrateCellTime(const Int_t absId, const Int_t bc, Double_t & celltime) const
1243 // Recalibrate time of cell with absID considering the recalibration map
1244 // bc= bunch crossing number returned by esdevent->GetBunchCrossNumber();
1246 if(!fCellsRecalibrated && IsTimeRecalibrationOn() && bc >= 0)
1248 celltime -= GetEMCALChannelTimeRecalibrationFactor(bc%4,absId)*1.e-9; ;
1252 //______________________________________________________________________________
1253 void AliEMCALRecoUtils::RecalculateClusterPosition(const AliEMCALGeometry *geom,
1254 AliVCaloCells* cells,
1257 //For a given CaloCluster recalculates the position for a given set of misalignment shifts and puts it again in the CaloCluster.
1261 AliInfo("Cluster pointer null!");
1265 if (fPosAlgo==kPosTowerGlobal) RecalculateClusterPositionFromTowerGlobal( geom, cells, clu);
1266 else if(fPosAlgo==kPosTowerIndex) RecalculateClusterPositionFromTowerIndex ( geom, cells, clu);
1267 else AliDebug(2,"Algorithm to recalculate position not selected, do nothing.");
1270 //_____________________________________________________________________________________________
1271 void AliEMCALRecoUtils::RecalculateClusterPositionFromTowerGlobal(const AliEMCALGeometry *geom,
1272 AliVCaloCells* cells,
1275 // For a given CaloCluster recalculates the position for a given set of misalignment shifts and puts it again in the CaloCluster.
1276 // The algorithm is a copy of what is done in AliEMCALRecPoint
1278 Double_t eCell = 0.;
1279 Float_t fraction = 1.;
1280 Float_t recalFactor = 1.;
1283 Int_t iTower = -1, iIphi = -1, iIeta = -1;
1284 Int_t iSupModMax = -1, iSM=-1, iphi = -1, ieta = -1;
1285 Float_t weight = 0., totalWeight=0.;
1286 Float_t newPos[3] = {0,0,0};
1287 Double_t pLocal[3], pGlobal[3];
1288 Bool_t shared = kFALSE;
1290 Float_t clEnergy = clu->E(); //Energy already recalibrated previously
1291 GetMaxEnergyCell(geom, cells, clu, absId, iSupModMax, ieta, iphi,shared);
1292 Double_t depth = GetDepth(clEnergy,fParticleType,iSupModMax) ;
1294 //printf("** Cluster energy %f, ncells %d, depth %f\n",clEnergy,clu->GetNCells(),depth);
1296 for (Int_t iDig=0; iDig< clu->GetNCells(); iDig++)
1298 absId = clu->GetCellAbsId(iDig);
1299 fraction = clu->GetCellAmplitudeFraction(iDig);
1300 if(fraction < 1e-4) fraction = 1.; // in case unfolding is off
1302 if (!fCellsRecalibrated)
1304 geom->GetCellIndex(absId,iSM,iTower,iIphi,iIeta);
1305 geom->GetCellPhiEtaIndexInSModule(iSM,iTower,iIphi, iIeta,iphi,ieta);
1307 if(IsRecalibrationOn())
1309 recalFactor = GetEMCALChannelRecalibrationFactor(iSM,ieta,iphi);
1313 eCell = cells->GetCellAmplitude(absId)*fraction*recalFactor;
1315 weight = GetCellWeight(eCell,clEnergy);
1316 totalWeight += weight;
1318 geom->RelPosCellInSModule(absId,depth,pLocal[0],pLocal[1],pLocal[2]);
1319 //printf("pLocal (%f,%f,%f), SM %d, absId %d\n",pLocal[0],pLocal[1],pLocal[2],iSupModMax,absId);
1320 geom->GetGlobal(pLocal,pGlobal,iSupModMax);
1321 //printf("pLocal (%f,%f,%f)\n",pGlobal[0],pGlobal[1],pGlobal[2]);
1323 for(int i=0; i<3; i++ ) newPos[i] += (weight*pGlobal[i]);
1328 for(int i=0; i<3; i++ ) newPos[i] /= totalWeight;
1331 //Float_t pos[]={0,0,0};
1332 //clu->GetPosition(pos);
1333 //printf("OldPos : %2.3f,%2.3f,%2.3f\n",pos[0],pos[1],pos[2]);
1334 //printf("NewPos : %2.3f,%2.3f,%2.3f\n",newPos[0],newPos[1],newPos[2]);
1336 if(iSupModMax > 1) //sector 1
1338 newPos[0] +=fMisalTransShift[3];//-=3.093;
1339 newPos[1] +=fMisalTransShift[4];//+=6.82;
1340 newPos[2] +=fMisalTransShift[5];//+=1.635;
1341 //printf(" + : %2.3f,%2.3f,%2.3f\n",fMisalTransShift[3],fMisalTransShift[4],fMisalTransShift[5]);
1344 newPos[0] +=fMisalTransShift[0];//+=1.134;
1345 newPos[1] +=fMisalTransShift[1];//+=8.2;
1346 newPos[2] +=fMisalTransShift[2];//+=1.197;
1347 //printf(" + : %2.3f,%2.3f,%2.3f\n",fMisalTransShift[0],fMisalTransShift[1],fMisalTransShift[2]);
1349 //printf("NewPos : %2.3f,%2.3f,%2.3f\n",newPos[0],newPos[1],newPos[2]);
1351 clu->SetPosition(newPos);
1354 //____________________________________________________________________________________________
1355 void AliEMCALRecoUtils::RecalculateClusterPositionFromTowerIndex(const AliEMCALGeometry *geom,
1356 AliVCaloCells* cells,
1359 // For a given CaloCluster recalculates the position for a given set of misalignment shifts and puts it again in the CaloCluster.
1360 // The algorithm works with the tower indeces, averages the indeces and from them it calculates the global position
1362 Double_t eCell = 1.;
1363 Float_t fraction = 1.;
1364 Float_t recalFactor = 1.;
1368 Int_t iIphi = -1, iIeta = -1;
1369 Int_t iSupMod = -1, iSupModMax = -1;
1370 Int_t iphi = -1, ieta =-1;
1371 Bool_t shared = kFALSE;
1373 Float_t clEnergy = clu->E(); //Energy already recalibrated previously.
1374 GetMaxEnergyCell(geom, cells, clu, absId, iSupModMax, ieta, iphi,shared);
1375 Float_t depth = GetDepth(clEnergy,fParticleType,iSupMod) ;
1377 Float_t weight = 0., weightedCol = 0., weightedRow = 0., totalWeight=0.;
1378 Bool_t areInSameSM = kTRUE; //exclude clusters with cells in different SMs for now
1379 Int_t startingSM = -1;
1381 for (Int_t iDig=0; iDig< clu->GetNCells(); iDig++)
1383 absId = clu->GetCellAbsId(iDig);
1384 fraction = clu->GetCellAmplitudeFraction(iDig);
1385 if(fraction < 1e-4) fraction = 1.; // in case unfolding is off
1387 if (iDig==0) startingSM = iSupMod;
1388 else if(iSupMod != startingSM) areInSameSM = kFALSE;
1390 eCell = cells->GetCellAmplitude(absId);
1392 geom->GetCellIndex(absId,iSupMod,iTower,iIphi,iIeta);
1393 geom->GetCellPhiEtaIndexInSModule(iSupMod,iTower,iIphi, iIeta,iphi,ieta);
1395 if (!fCellsRecalibrated)
1397 if(IsRecalibrationOn())
1399 recalFactor = GetEMCALChannelRecalibrationFactor(iSupMod,ieta,iphi);
1403 eCell = cells->GetCellAmplitude(absId)*fraction*recalFactor;
1405 weight = GetCellWeight(eCell,clEnergy);
1406 if(weight < 0) weight = 0;
1407 totalWeight += weight;
1408 weightedCol += ieta*weight;
1409 weightedRow += iphi*weight;
1411 //printf("Max cell? cell %d, amplitude org %f, fraction %f, recalibration %f, amplitude new %f \n",cellAbsId, cells->GetCellAmplitude(cellAbsId), fraction, recalFactor, eCell) ;
1414 Float_t xyzNew[]={0.,0.,0.};
1415 if(areInSameSM == kTRUE)
1417 //printf("In Same SM\n");
1418 weightedCol = weightedCol/totalWeight;
1419 weightedRow = weightedRow/totalWeight;
1420 geom->RecalculateTowerPosition(weightedRow, weightedCol, iSupModMax, depth, fMisalTransShift, fMisalRotShift, xyzNew);
1424 //printf("In Different SM\n");
1425 geom->RecalculateTowerPosition(iphi, ieta, iSupModMax, depth, fMisalTransShift, fMisalRotShift, xyzNew);
1428 clu->SetPosition(xyzNew);
1431 //___________________________________________________________________________________________
1432 void AliEMCALRecoUtils::RecalculateClusterDistanceToBadChannel(const AliEMCALGeometry * geom,
1433 AliVCaloCells* cells,
1434 AliVCluster * cluster)
1436 //re-evaluate distance to bad channel with updated bad map
1438 if(!fRecalDistToBadChannels) return;
1442 AliInfo("Cluster pointer null!");
1446 //Get channels map of the supermodule where the cluster is.
1447 Int_t absIdMax = -1, iSupMod =-1, icolM = -1, irowM = -1;
1448 Bool_t shared = kFALSE;
1449 GetMaxEnergyCell(geom, cells, cluster, absIdMax, iSupMod, icolM, irowM, shared);
1450 TH2D* hMap = (TH2D*)fEMCALBadChannelMap->At(iSupMod);
1453 Float_t minDist = 10000.;
1456 //Loop on tower status map
1457 for(Int_t irow = 0; irow < AliEMCALGeoParams::fgkEMCALRows; irow++)
1459 for(Int_t icol = 0; icol < AliEMCALGeoParams::fgkEMCALCols; icol++)
1461 //Check if tower is bad.
1462 if(hMap->GetBinContent(icol,irow)==0) continue;
1463 //printf("AliEMCALRecoUtils::RecalculateDistanceToBadChannels() - \n \t Bad channel in SM %d, col %d, row %d, \n \t Cluster max in col %d, row %d\n",
1464 // iSupMod,icol, irow, icolM,irowM);
1466 dRrow=TMath::Abs(irowM-irow);
1467 dRcol=TMath::Abs(icolM-icol);
1468 dist=TMath::Sqrt(dRrow*dRrow+dRcol*dRcol);
1471 //printf("MIN DISTANCE TO BAD %2.2f\n",dist);
1477 //In case the cluster is shared by 2 SuperModules, need to check the map of the second Super Module
1481 Int_t iSupMod2 = -1;
1483 //The only possible combinations are (0,1), (2,3) ... (8,9)
1484 if(iSupMod%2) iSupMod2 = iSupMod-1;
1485 else iSupMod2 = iSupMod+1;
1486 hMap2 = (TH2D*)fEMCALBadChannelMap->At(iSupMod2);
1488 //Loop on tower status map of second super module
1489 for(Int_t irow = 0; irow < AliEMCALGeoParams::fgkEMCALRows; irow++)
1491 for(Int_t icol = 0; icol < AliEMCALGeoParams::fgkEMCALCols; icol++)
1493 //Check if tower is bad.
1494 if(hMap2->GetBinContent(icol,irow)==0) continue;
1495 //printf("AliEMCALRecoUtils::RecalculateDistanceToBadChannels(shared) - \n \t Bad channel in SM %d, col %d, row %d \n \t Cluster max in SM %d, col %d, row %d\n",
1496 // iSupMod2,icol, irow,iSupMod,icolM,irowM);
1497 dRrow=TMath::Abs(irow-irowM);
1501 dRcol=TMath::Abs(icol-(AliEMCALGeoParams::fgkEMCALCols+icolM));
1504 dRcol=TMath::Abs(AliEMCALGeoParams::fgkEMCALCols+icol-icolM);
1507 dist=TMath::Sqrt(dRrow*dRrow+dRcol*dRcol);
1508 if(dist < minDist) minDist = dist;
1511 }// shared cluster in 2 SuperModules
1513 AliDebug(2,Form("Max cluster cell (SM,col,row)=(%d %d %d) - Distance to Bad Channel %2.2f",iSupMod, icolM, irowM, minDist));
1514 cluster->SetDistanceToBadChannel(minDist);
1517 //__________________________________________________________________
1518 void AliEMCALRecoUtils::RecalculateClusterPID(AliVCluster * cluster)
1520 //re-evaluate identification parameters with bayesian
1524 AliInfo("Cluster pointer null!");
1528 if ( cluster->GetM02() != 0)
1529 fPIDUtils->ComputePID(cluster->E(),cluster->GetM02());
1531 Float_t pidlist[AliPID::kSPECIESN+1];
1532 for(Int_t i = 0; i < AliPID::kSPECIESN+1; i++) pidlist[i] = fPIDUtils->GetPIDFinal(i);
1534 cluster->SetPID(pidlist);
1537 //___________________________________________________________________________________________________________________
1538 void AliEMCALRecoUtils::RecalculateClusterShowerShapeParameters(const AliEMCALGeometry * geom,
1539 AliVCaloCells* cells,
1540 AliVCluster * cluster,
1541 Float_t & l0, Float_t & l1,
1542 Float_t & disp, Float_t & dEta, Float_t & dPhi,
1543 Float_t & sEta, Float_t & sPhi, Float_t & sEtaPhi)
1545 // Calculates new center of gravity in the local EMCAL-module coordinates
1546 // and tranfers into global ALICE coordinates
1547 // Calculates Dispersion and main axis
1551 AliInfo("Cluster pointer null!");
1555 Double_t eCell = 0.;
1556 Float_t fraction = 1.;
1557 Float_t recalFactor = 1.;
1565 Double_t etai = -1.;
1566 Double_t phii = -1.;
1571 Double_t etaMean = 0.;
1572 Double_t phiMean = 0.;
1575 for(Int_t iDigit=0; iDigit < cluster->GetNCells(); iDigit++)
1577 //Get from the absid the supermodule, tower and eta/phi numbers
1578 geom->GetCellIndex(cluster->GetCellAbsId(iDigit),iSupMod,iTower,iIphi,iIeta);
1579 geom->GetCellPhiEtaIndexInSModule(iSupMod,iTower,iIphi,iIeta, iphi,ieta);
1581 //Get the cell energy, if recalibration is on, apply factors
1582 fraction = cluster->GetCellAmplitudeFraction(iDigit);
1583 if(fraction < 1e-4) fraction = 1.; // in case unfolding is off
1585 if (!fCellsRecalibrated)
1587 if(IsRecalibrationOn())
1589 recalFactor = GetEMCALChannelRecalibrationFactor(iSupMod,ieta,iphi);
1593 eCell = cells->GetCellAmplitude(cluster->GetCellAbsId(iDigit))*fraction*recalFactor;
1595 if(cluster->E() > 0 && eCell > 0)
1597 w = GetCellWeight(eCell,cluster->E());
1599 etai=(Double_t)ieta;
1600 phii=(Double_t)iphi;
1607 sEta += w * etai * etai ;
1608 etaMean += w * etai ;
1609 sPhi += w * phii * phii ;
1610 phiMean += w * phii ;
1611 sEtaPhi += w * etai * phii ;
1615 AliError(Form("Wrong energy %f and/or amplitude %f\n", eCell, cluster->E()));
1618 //Normalize to the weight
1625 AliError(Form("Wrong weight %f\n", wtot));
1627 //Calculate dispersion
1628 for(Int_t iDigit=0; iDigit < cluster->GetNCells(); iDigit++)
1630 //Get from the absid the supermodule, tower and eta/phi numbers
1631 geom->GetCellIndex(cluster->GetCellAbsId(iDigit),iSupMod,iTower,iIphi,iIeta);
1632 geom->GetCellPhiEtaIndexInSModule(iSupMod,iTower,iIphi,iIeta, iphi,ieta);
1634 //Get the cell energy, if recalibration is on, apply factors
1635 fraction = cluster->GetCellAmplitudeFraction(iDigit);
1636 if(fraction < 1e-4) fraction = 1.; // in case unfolding is off
1637 if (IsRecalibrationOn())
1639 recalFactor = GetEMCALChannelRecalibrationFactor(iSupMod,ieta,iphi);
1641 eCell = cells->GetCellAmplitude(cluster->GetCellAbsId(iDigit))*fraction*recalFactor;
1643 if(cluster->E() > 0 && eCell > 0)
1645 w = GetCellWeight(eCell,cluster->E());
1647 etai=(Double_t)ieta;
1648 phii=(Double_t)iphi;
1651 disp += w *((etai-etaMean)*(etai-etaMean)+(phii-phiMean)*(phii-phiMean));
1652 dEta += w * (etai-etaMean)*(etai-etaMean) ;
1653 dPhi += w * (phii-phiMean)*(phii-phiMean) ;
1657 AliError(Form("Wrong energy %f and/or amplitude %f\n", eCell, cluster->E()));
1660 //Normalize to the weigth and set shower shape parameters
1661 if (wtot > 0 && nstat > 1)
1670 sEta -= etaMean * etaMean ;
1671 sPhi -= phiMean * phiMean ;
1672 sEtaPhi -= etaMean * phiMean ;
1674 l0 = (0.5 * (sEta + sPhi) + TMath::Sqrt( 0.25 * (sEta - sPhi) * (sEta - sPhi) + sEtaPhi * sEtaPhi ));
1675 l1 = (0.5 * (sEta + sPhi) - TMath::Sqrt( 0.25 * (sEta - sPhi) * (sEta - sPhi) + sEtaPhi * sEtaPhi ));
1681 dEta = 0. ; dPhi = 0. ; disp = 0. ;
1682 sEta = 0. ; sPhi = 0. ; sEtaPhi = 0. ;
1687 //____________________________________________________________________________________________
1688 void AliEMCALRecoUtils::RecalculateClusterShowerShapeParameters(const AliEMCALGeometry * geom,
1689 AliVCaloCells* cells,
1690 AliVCluster * cluster)
1692 // Calculates new center of gravity in the local EMCAL-module coordinates
1693 // and tranfers into global ALICE coordinates
1694 // Calculates Dispersion and main axis and puts them into the cluster
1696 Float_t l0 = 0., l1 = 0.;
1697 Float_t disp = 0., dEta = 0., dPhi = 0.;
1698 Float_t sEta = 0., sPhi = 0., sEtaPhi = 0.;
1700 AliEMCALRecoUtils::RecalculateClusterShowerShapeParameters(geom,cells,cluster,l0,l1,disp,
1701 dEta, dPhi, sEta, sPhi, sEtaPhi);
1703 cluster->SetM02(l0);
1704 cluster->SetM20(l1);
1705 if(disp > 0. ) cluster->SetDispersion(TMath::Sqrt(disp)) ;
1709 //____________________________________________________________________________
1710 void AliEMCALRecoUtils::FindMatches(AliVEvent *event,
1711 TObjArray * clusterArr,
1712 const AliEMCALGeometry *geom)
1714 //This function should be called before the cluster loop
1715 //Before call this function, please recalculate the cluster positions
1716 //Given the input event, loop over all the tracks, select the closest cluster as matched with fCutR
1717 //Store matched cluster indexes and residuals
1719 fMatchedTrackIndex ->Reset();
1720 fMatchedClusterIndex->Reset();
1721 fResidualPhi->Reset();
1722 fResidualEta->Reset();
1724 fMatchedTrackIndex ->Set(1000);
1725 fMatchedClusterIndex->Set(1000);
1726 fResidualPhi->Set(1000);
1727 fResidualEta->Set(1000);
1729 AliESDEvent* esdevent = dynamic_cast<AliESDEvent*> (event);
1730 AliAODEvent* aodevent = dynamic_cast<AliAODEvent*> (event);
1732 // init the magnetic field if not already on
1733 if(!TGeoGlobalMagField::Instance()->GetField())
1735 AliInfo("Init the magnetic field\n");
1738 esdevent->InitMagneticField();
1742 Double_t curSol = 30000*aodevent->GetMagneticField()/5.00668;
1743 Double_t curDip = 6000 *aodevent->GetMuonMagFieldScale();
1744 AliMagF *field = AliMagF::CreateFieldMap(curSol,curDip);
1745 TGeoGlobalMagField::Instance()->SetField(field);
1749 AliInfo("Mag Field not initialized, null esd/aod evetn pointers");
1754 TObjArray *clusterArray = 0x0;
1757 clusterArray = new TObjArray(event->GetNumberOfCaloClusters());
1758 for(Int_t icl=0; icl<event->GetNumberOfCaloClusters(); icl++)
1760 AliVCluster *cluster = (AliVCluster*) event->GetCaloCluster(icl);
1761 if(geom && !IsGoodCluster(cluster,geom,(AliVCaloCells*)event->GetEMCALCells())) continue;
1762 clusterArray->AddAt(cluster,icl);
1768 for (Int_t i=0; i<21;i++) cv[i]=0;
1769 for(Int_t itr=0; itr<event->GetNumberOfTracks(); itr++)
1771 AliExternalTrackParam *trackParam = 0;
1773 //If the input event is ESD, the starting point for extrapolation is TPCOut, if available, or TPCInner
1774 AliESDtrack *esdTrack = 0;
1775 AliAODTrack *aodTrack = 0;
1778 esdTrack = esdevent->GetTrack(itr);
1779 if(!esdTrack) continue;
1780 if(!IsAccepted(esdTrack)) continue;
1781 if(esdTrack->Pt()<fCutMinTrackPt) continue;
1782 Double_t phi = esdTrack->Phi()*TMath::RadToDeg();
1783 if(TMath::Abs(esdTrack->Eta())>0.8 || phi <= 20 || phi >= 240 ) continue;
1784 trackParam = const_cast<AliExternalTrackParam*>(esdTrack->GetInnerParam());
1787 //If the input event is AOD, the starting point for extrapolation is at vertex
1788 //AOD tracks are selected according to its filterbit.
1791 aodTrack = aodevent->GetTrack(itr);
1792 if(!aodTrack) continue;
1793 if(!aodTrack->TestFilterMask(fAODFilterMask)) continue; //Select AOD tracks that fulfill GetStandardITSTPCTrackCuts2010()
1794 if(aodTrack->Pt()<fCutMinTrackPt) continue;
1795 Double_t phi = aodTrack->Phi()*TMath::RadToDeg();
1796 if(TMath::Abs(aodTrack->Eta())>0.8 || phi <= 20 || phi >= 240 ) continue;
1797 Double_t pos[3],mom[3];
1798 aodTrack->GetXYZ(pos);
1799 aodTrack->GetPxPyPz(mom);
1800 AliDebug(5,Form("aod track: i=%d | pos=(%5.4f,%5.4f,%5.4f) | mom=(%5.4f,%5.4f,%5.4f) | charge=%d\n",itr,pos[0],pos[1],pos[2],mom[0],mom[1],mom[2],aodTrack->Charge()));
1801 trackParam= new AliExternalTrackParam(pos,mom,cv,aodTrack->Charge());
1804 //Return if the input data is not "AOD" or "ESD"
1807 printf("Wrong input data type! Should be \"AOD\" or \"ESD\"\n");
1810 clusterArray->Clear();
1811 delete clusterArray;
1816 if(!trackParam) continue;
1818 //Extrapolate the track to EMCal surface
1819 AliExternalTrackParam emcalParam(*trackParam);
1821 if(!ExtrapolateTrackToEMCalSurface(&emcalParam, 430., fMass, fStepSurface, eta, phi))
1823 if(aodevent && trackParam) delete trackParam;
1829 // esdTrack->SetOuterParam(&emcalParam,AliExternalTrackParam::kMultSec);
1832 if(TMath::Abs(eta)>0.75 || (phi) < 70*TMath::DegToRad() || (phi) > 190*TMath::DegToRad())
1834 if(aodevent && trackParam) delete trackParam;
1839 //Find matched clusters
1841 Float_t dEta = -999, dPhi = -999;
1844 index = FindMatchedClusterInClusterArr(&emcalParam, &emcalParam, clusterArray, dEta, dPhi);
1848 index = FindMatchedClusterInClusterArr(&emcalParam, &emcalParam, clusterArr, dEta, dPhi);
1853 fMatchedTrackIndex ->AddAt(itr,matched);
1854 fMatchedClusterIndex ->AddAt(index,matched);
1855 fResidualEta ->AddAt(dEta,matched);
1856 fResidualPhi ->AddAt(dPhi,matched);
1859 if(aodevent && trackParam) delete trackParam;
1864 clusterArray->Clear();
1865 delete clusterArray;
1868 AliDebug(2,Form("Number of matched pairs = %d !\n",matched));
1870 fMatchedTrackIndex ->Set(matched);
1871 fMatchedClusterIndex ->Set(matched);
1872 fResidualPhi ->Set(matched);
1873 fResidualEta ->Set(matched);
1876 //________________________________________________________________________________
1877 Int_t AliEMCALRecoUtils::FindMatchedClusterInEvent(const AliESDtrack *track,
1878 const AliVEvent *event,
1879 const AliEMCALGeometry *geom,
1880 Float_t &dEta, Float_t &dPhi)
1883 // This function returns the index of matched cluster to input track
1884 // Returns -1 if no match is found
1886 Double_t phiV = track->Phi()*TMath::RadToDeg();
1887 if(TMath::Abs(track->Eta())>0.8 || phiV <= 20 || phiV >= 240 ) return index;
1888 AliExternalTrackParam *trackParam = const_cast<AliExternalTrackParam*>(track->GetInnerParam());
1889 if(!trackParam) return index;
1890 AliExternalTrackParam emcalParam(*trackParam);
1892 if(!ExtrapolateTrackToEMCalSurface(&emcalParam, 430., fMass, fStepSurface, eta, phi)) return index;
1893 if(TMath::Abs(eta)>0.75 || (phi) < 70*TMath::DegToRad() || (phi) > 190*TMath::DegToRad()) return index;
1895 TObjArray *clusterArr = new TObjArray(event->GetNumberOfCaloClusters());
1897 for(Int_t icl=0; icl<event->GetNumberOfCaloClusters(); icl++)
1899 AliVCluster *cluster = (AliVCluster*) event->GetCaloCluster(icl);
1900 if(geom && !IsGoodCluster(cluster,geom,(AliVCaloCells*)event->GetEMCALCells())) continue;
1901 clusterArr->AddAt(cluster,icl);
1904 index = FindMatchedClusterInClusterArr(&emcalParam, &emcalParam, clusterArr, dEta, dPhi);
1905 clusterArr->Clear();
1911 //_______________________________________________________________________________________________
1912 Int_t AliEMCALRecoUtils::FindMatchedClusterInClusterArr(const AliExternalTrackParam *emcalParam,
1913 AliExternalTrackParam *trkParam,
1914 const TObjArray * clusterArr,
1915 Float_t &dEta, Float_t &dPhi)
1917 // Find matched cluster in array
1919 dEta=-999, dPhi=-999;
1920 Float_t dRMax = fCutR, dEtaMax=fCutEta, dPhiMax=fCutPhi;
1922 Float_t tmpEta=-999, tmpPhi=-999;
1924 Double_t exPos[3] = {0.,0.,0.};
1925 if(!emcalParam->GetXYZ(exPos)) return index;
1927 Float_t clsPos[3] = {0.,0.,0.};
1928 for(Int_t icl=0; icl<clusterArr->GetEntriesFast(); icl++)
1930 AliVCluster *cluster = dynamic_cast<AliVCluster*> (clusterArr->At(icl)) ;
1931 if(!cluster || !cluster->IsEMCAL()) continue;
1932 cluster->GetPosition(clsPos);
1933 Double_t dR = TMath::Sqrt(TMath::Power(exPos[0]-clsPos[0],2)+TMath::Power(exPos[1]-clsPos[1],2)+TMath::Power(exPos[2]-clsPos[2],2));
1934 if(dR > fClusterWindow) continue;
1936 AliExternalTrackParam trkPamTmp (*trkParam);//Retrieve the starting point every time before the extrapolation
1937 if(!ExtrapolateTrackToCluster(&trkPamTmp, cluster, fMass, fStepCluster, tmpEta, tmpPhi)) continue;
1940 Float_t tmpR=TMath::Sqrt(tmpEta*tmpEta + tmpPhi*tmpPhi);
1949 else if(fCutEtaPhiSeparate)
1951 if(TMath::Abs(tmpEta)<TMath::Abs(dEtaMax) && TMath::Abs(tmpPhi)<TMath::Abs(dPhiMax))
1960 printf("Error: please specify your cut criteria\n");
1961 printf("To cut on sqrt(dEta^2+dPhi^2), use: SwitchOnCutEtaPhiSum()\n");
1962 printf("To cut on dEta and dPhi separately, use: SwitchOnCutEtaPhiSeparate()\n");
1973 //------------------------------------------------------------------------------------
1974 Bool_t AliEMCALRecoUtils::ExtrapolateTrackToEMCalSurface(AliExternalTrackParam *trkParam,
1975 const Double_t emcalR,
1976 const Double_t mass,
1977 const Double_t step,
1981 //Extrapolate track to EMCAL surface
1983 eta = -999, phi = -999;
1984 if(!trkParam) return kFALSE;
1985 if(!AliTrackerBase::PropagateTrackToBxByBz(trkParam, emcalR, mass, step, kTRUE, 0.8, -1)) return kFALSE;
1986 Double_t trkPos[3] = {0.,0.,0.};
1987 if(!trkParam->GetXYZ(trkPos)) return kFALSE;
1988 TVector3 trkPosVec(trkPos[0],trkPos[1],trkPos[2]);
1989 eta = trkPosVec.Eta();
1990 phi = trkPosVec.Phi();
1992 phi += 2*TMath::Pi();
1997 //-----------------------------------------------------------------------------------
1998 Bool_t AliEMCALRecoUtils::ExtrapolateTrackToPosition(AliExternalTrackParam *trkParam,
1999 const Float_t *clsPos,
2006 //Return the residual by extrapolating a track param to a global position
2010 if(!trkParam) return kFALSE;
2011 Double_t trkPos[3] = {0.,0.,0.};
2012 TVector3 vec(clsPos[0],clsPos[1],clsPos[2]);
2013 Double_t alpha = ((int)(vec.Phi()*TMath::RadToDeg()/20)+0.5)*20*TMath::DegToRad();
2014 vec.RotateZ(-alpha); //Rotate the cluster to the local extrapolation coordinate system
2015 if(!AliTrackerBase::PropagateTrackToBxByBz(trkParam, vec.X(), mass, step,kTRUE, 0.8, -1)) return kFALSE;
2016 if(!trkParam->GetXYZ(trkPos)) return kFALSE; //Get the extrapolated global position
2018 TVector3 clsPosVec(clsPos[0],clsPos[1],clsPos[2]);
2019 TVector3 trkPosVec(trkPos[0],trkPos[1],trkPos[2]);
2021 // track cluster matching
2022 tmpPhi = clsPosVec.DeltaPhi(trkPosVec); // tmpPhi is between -pi and pi
2023 tmpEta = clsPosVec.Eta()-trkPosVec.Eta();
2028 //----------------------------------------------------------------------------------
2029 Bool_t AliEMCALRecoUtils::ExtrapolateTrackToCluster(AliExternalTrackParam *trkParam,
2030 const AliVCluster *cluster,
2031 const Double_t mass,
2032 const Double_t step,
2037 //Return the residual by extrapolating a track param to a cluster
2041 if(!cluster || !trkParam) return kFALSE;
2043 Float_t clsPos[3] = {0.,0.,0.};
2044 cluster->GetPosition(clsPos);
2046 return ExtrapolateTrackToPosition(trkParam, clsPos, mass, step, tmpEta, tmpPhi);
2049 //---------------------------------------------------------------------------------
2050 Bool_t AliEMCALRecoUtils::ExtrapolateTrackToCluster(AliExternalTrackParam *trkParam,
2051 const AliVCluster *cluster,
2056 //Return the residual by extrapolating a track param to a clusterfStepCluster
2059 return ExtrapolateTrackToCluster(trkParam, cluster, fMass, fStepCluster, tmpEta, tmpPhi);
2062 //_______________________________________________________________________
2063 void AliEMCALRecoUtils::GetMatchedResiduals(const Int_t clsIndex,
2064 Float_t &dEta, Float_t &dPhi)
2066 //Given a cluster index as in AliESDEvent::GetCaloCluster(clsIndex)
2067 //Get the residuals dEta and dPhi for this cluster to the closest track
2068 //Works with ESDs and AODs
2070 if( FindMatchedPosForCluster(clsIndex) >= 999 )
2072 AliDebug(2,"No matched tracks found!\n");
2077 dEta = fResidualEta->At(FindMatchedPosForCluster(clsIndex));
2078 dPhi = fResidualPhi->At(FindMatchedPosForCluster(clsIndex));
2081 //______________________________________________________________________________________________
2082 void AliEMCALRecoUtils::GetMatchedClusterResiduals(Int_t trkIndex, Float_t &dEta, Float_t &dPhi)
2084 //Given a track index as in AliESDEvent::GetTrack(trkIndex)
2085 //Get the residuals dEta and dPhi for this track to the closest cluster
2086 //Works with ESDs and AODs
2088 if( FindMatchedPosForTrack(trkIndex) >= 999 )
2090 AliDebug(2,"No matched cluster found!\n");
2095 dEta = fResidualEta->At(FindMatchedPosForTrack(trkIndex));
2096 dPhi = fResidualPhi->At(FindMatchedPosForTrack(trkIndex));
2099 //__________________________________________________________
2100 Int_t AliEMCALRecoUtils::GetMatchedTrackIndex(Int_t clsIndex)
2102 //Given a cluster index as in AliESDEvent::GetCaloCluster(clsIndex)
2103 //Get the index of matched track to this cluster
2104 //Works with ESDs and AODs
2106 if(IsClusterMatched(clsIndex))
2107 return fMatchedTrackIndex->At(FindMatchedPosForCluster(clsIndex));
2112 //__________________________________________________________
2113 Int_t AliEMCALRecoUtils::GetMatchedClusterIndex(Int_t trkIndex)
2115 //Given a track index as in AliESDEvent::GetTrack(trkIndex)
2116 //Get the index of matched cluster to this track
2117 //Works with ESDs and AODs
2119 if(IsTrackMatched(trkIndex))
2120 return fMatchedClusterIndex->At(FindMatchedPosForTrack(trkIndex));
2125 //______________________________________________________________
2126 Bool_t AliEMCALRecoUtils::IsClusterMatched(Int_t clsIndex) const
2128 //Given a cluster index as in AliESDEvent::GetCaloCluster(clsIndex)
2129 //Returns if the cluster has a match
2130 if(FindMatchedPosForCluster(clsIndex) < 999)
2136 //____________________________________________________________
2137 Bool_t AliEMCALRecoUtils::IsTrackMatched(Int_t trkIndex) const
2139 //Given a track index as in AliESDEvent::GetTrack(trkIndex)
2140 //Returns if the track has a match
2141 if(FindMatchedPosForTrack(trkIndex) < 999)
2147 //______________________________________________________________________
2148 UInt_t AliEMCALRecoUtils::FindMatchedPosForCluster(Int_t clsIndex) const
2150 //Given a cluster index as in AliESDEvent::GetCaloCluster(clsIndex)
2151 //Returns the position of the match in the fMatchedClusterIndex array
2152 Float_t tmpR = fCutR;
2155 for(Int_t i=0; i<fMatchedClusterIndex->GetSize(); i++)
2157 if(fMatchedClusterIndex->At(i)==clsIndex)
2159 Float_t r = TMath::Sqrt(fResidualEta->At(i)*fResidualEta->At(i) + fResidualPhi->At(i)*fResidualPhi->At(i));
2164 AliDebug(3,Form("Matched cluster index: index: %d, dEta: %2.4f, dPhi: %2.4f.\n",
2165 fMatchedClusterIndex->At(i),fResidualEta->At(i),fResidualPhi->At(i)));
2172 //____________________________________________________________________
2173 UInt_t AliEMCALRecoUtils::FindMatchedPosForTrack(Int_t trkIndex) const
2175 //Given a track index as in AliESDEvent::GetTrack(trkIndex)
2176 //Returns the position of the match in the fMatchedTrackIndex array
2177 Float_t tmpR = fCutR;
2180 for(Int_t i=0; i<fMatchedTrackIndex->GetSize(); i++)
2182 if(fMatchedTrackIndex->At(i)==trkIndex)
2184 Float_t r = TMath::Sqrt(fResidualEta->At(i)*fResidualEta->At(i) + fResidualPhi->At(i)*fResidualPhi->At(i));
2189 AliDebug(3,Form("Matched track index: index: %d, dEta: %2.4f, dPhi: %2.4f.\n",
2190 fMatchedTrackIndex->At(i),fResidualEta->At(i),fResidualPhi->At(i)));
2197 //__________________________________________________________________________
2198 Bool_t AliEMCALRecoUtils::IsGoodCluster(AliVCluster *cluster,
2199 const AliEMCALGeometry *geom,
2200 AliVCaloCells* cells,const Int_t bc)
2202 // check if the cluster survives some quality cut
2205 Bool_t isGood=kTRUE;
2207 if(!cluster || !cluster->IsEMCAL()) return kFALSE;
2209 if(ClusterContainsBadChannel(geom,cluster->GetCellsAbsId(),cluster->GetNCells())) return kFALSE;
2211 if(!CheckCellFiducialRegion(geom,cluster,cells)) return kFALSE;
2213 if(IsExoticCluster(cluster, cells,bc)) return kFALSE;
2218 //__________________________________________________________
2219 Bool_t AliEMCALRecoUtils::IsAccepted(AliESDtrack *esdTrack)
2221 // Given a esd track, return whether the track survive all the cuts
2223 // The different quality parameter are first
2224 // retrieved from the track. then it is found out what cuts the
2225 // track did not survive and finally the cuts are imposed.
2227 UInt_t status = esdTrack->GetStatus();
2229 Int_t nClustersITS = esdTrack->GetITSclusters(0);
2230 Int_t nClustersTPC = esdTrack->GetTPCclusters(0);
2232 Float_t chi2PerClusterITS = -1;
2233 Float_t chi2PerClusterTPC = -1;
2234 if (nClustersITS!=0)
2235 chi2PerClusterITS = esdTrack->GetITSchi2()/Float_t(nClustersITS);
2236 if (nClustersTPC!=0)
2237 chi2PerClusterTPC = esdTrack->GetTPCchi2()/Float_t(nClustersTPC);
2241 if(fTrackCutsType==kGlobalCut)
2243 Float_t maxDCAToVertexXYPtDep = 0.0182 + 0.0350/TMath::Power(esdTrack->Pt(),1.01); //This expression comes from AliESDtrackCuts::GetStandardITSTPCTrackCuts2010()
2244 //AliDebug(3,Form("Track pT = %f, DCAtoVertexXY = %f",esdTrack->Pt(),MaxDCAToVertexXYPtDep));
2245 SetMaxDCAToVertexXY(maxDCAToVertexXYPtDep); //Set pT dependent DCA cut to vertex in x-y plane
2251 esdTrack->GetImpactParameters(b,bCov);
2252 if (bCov[0]<=0 || bCov[2]<=0)
2254 AliDebug(1, "Estimated b resolution lower or equal zero!");
2255 bCov[0]=0; bCov[2]=0;
2258 Float_t dcaToVertexXY = b[0];
2259 Float_t dcaToVertexZ = b[1];
2260 Float_t dcaToVertex = -1;
2262 if (fCutDCAToVertex2D)
2263 dcaToVertex = TMath::Sqrt(dcaToVertexXY*dcaToVertexXY/fCutMaxDCAToVertexXY/fCutMaxDCAToVertexXY + dcaToVertexZ*dcaToVertexZ/fCutMaxDCAToVertexZ/fCutMaxDCAToVertexZ);
2265 dcaToVertex = TMath::Sqrt(dcaToVertexXY*dcaToVertexXY + dcaToVertexZ*dcaToVertexZ);
2269 Bool_t cuts[kNCuts];
2270 for (Int_t i=0; i<kNCuts; i++) cuts[i]=kFALSE;
2272 // track quality cuts
2273 if (fCutRequireTPCRefit && (status&AliESDtrack::kTPCrefit)==0)
2275 if (fCutRequireITSRefit && (status&AliESDtrack::kITSrefit)==0)
2277 if (nClustersTPC<fCutMinNClusterTPC)
2279 if (nClustersITS<fCutMinNClusterITS)
2281 if (chi2PerClusterTPC>fCutMaxChi2PerClusterTPC)
2283 if (chi2PerClusterITS>fCutMaxChi2PerClusterITS)
2285 if (!fCutAcceptKinkDaughters && esdTrack->GetKinkIndex(0)>0)
2287 if (fCutDCAToVertex2D && dcaToVertex > 1)
2289 if (!fCutDCAToVertex2D && TMath::Abs(dcaToVertexXY) > fCutMaxDCAToVertexXY)
2291 if (!fCutDCAToVertex2D && TMath::Abs(dcaToVertexZ) > fCutMaxDCAToVertexZ)
2294 if(fTrackCutsType==kGlobalCut)
2296 //Require at least one SPD point + anything else in ITS
2297 if( (esdTrack->HasPointOnITSLayer(0) || esdTrack->HasPointOnITSLayer(1)) == kFALSE)
2302 for (Int_t i=0; i<kNCuts; i++)
2303 if (cuts[i]) { cut = kTRUE ; }
2312 //_____________________________________
2313 void AliEMCALRecoUtils::InitTrackCuts()
2315 //Intilize the track cut criteria
2316 //By default these cuts are set according to AliESDtrackCuts::GetStandardTPCOnlyTrackCuts()
2317 //Also you can customize the cuts using the setters
2319 switch (fTrackCutsType)
2323 AliInfo(Form("Track cuts for matching: GetStandardTPCOnlyTrackCuts()"));
2325 SetMinNClustersTPC(70);
2326 SetMaxChi2PerClusterTPC(4);
2327 SetAcceptKinkDaughters(kFALSE);
2328 SetRequireTPCRefit(kFALSE);
2331 SetRequireITSRefit(kFALSE);
2332 SetMaxDCAToVertexZ(3.2);
2333 SetMaxDCAToVertexXY(2.4);
2334 SetDCAToVertex2D(kTRUE);
2341 AliInfo(Form("Track cuts for matching: GetStandardITSTPCTrackCuts2010(kTURE)"));
2343 SetMinNClustersTPC(70);
2344 SetMaxChi2PerClusterTPC(4);
2345 SetAcceptKinkDaughters(kFALSE);
2346 SetRequireTPCRefit(kTRUE);
2349 SetRequireITSRefit(kTRUE);
2350 SetMaxDCAToVertexZ(2);
2351 SetMaxDCAToVertexXY();
2352 SetDCAToVertex2D(kFALSE);
2359 AliInfo(Form("Track cuts for matching: Loose cut w/o DCA cut"));
2360 SetMinNClustersTPC(50);
2361 SetAcceptKinkDaughters(kTRUE);
2369 //________________________________________________________________________
2370 void AliEMCALRecoUtils::SetClusterMatchedToTrack(const AliVEvent *event)
2372 // Checks if tracks are matched to EMC clusters and set the matched EMCAL cluster index to ESD track.
2374 Int_t nTracks = event->GetNumberOfTracks();
2375 for (Int_t iTrack = 0; iTrack < nTracks; ++iTrack)
2377 AliVTrack* track = dynamic_cast<AliVTrack*>(event->GetTrack(iTrack));
2380 AliWarning(Form("Could not receive track %d", iTrack));
2384 Int_t matchClusIndex = GetMatchedClusterIndex(iTrack);
2385 track->SetEMCALcluster(matchClusIndex); //sets -1 if track not matched within residual
2386 /*the following can be done better if AliVTrack::SetStatus will be there. Patch pending with Andreas/Peter*/
2387 AliESDtrack* esdtrack = dynamic_cast<AliESDtrack*>(track);
2389 if(matchClusIndex != -1)
2390 esdtrack->SetStatus(AliESDtrack::kEMCALmatch);
2392 esdtrack->ResetStatus(AliESDtrack::kEMCALmatch);
2394 AliAODTrack* aodtrack = dynamic_cast<AliAODTrack*>(track);
2395 if(matchClusIndex != -1)
2396 aodtrack->SetStatus(AliESDtrack::kEMCALmatch);
2398 aodtrack->ResetStatus(AliESDtrack::kEMCALmatch);
2402 AliDebug(2,"Track matched to closest cluster");
2405 //_________________________________________________________________________
2406 void AliEMCALRecoUtils::SetTracksMatchedToCluster(const AliVEvent *event)
2408 // Checks if EMC clusters are matched to ESD track.
2409 // Adds track indexes of all the tracks matched to a cluster withing residuals in ESDCalocluster.
2411 for (Int_t iClus=0; iClus < event->GetNumberOfCaloClusters(); ++iClus)
2413 AliVCluster *cluster = event->GetCaloCluster(iClus);
2414 if (!cluster->IsEMCAL())
2417 Int_t nTracks = event->GetNumberOfTracks();
2418 TArrayI arrayTrackMatched(nTracks);
2420 // Get the closest track matched to the cluster
2422 Int_t matchTrackIndex = GetMatchedTrackIndex(iClus);
2423 if (matchTrackIndex != -1)
2425 arrayTrackMatched[nMatched] = matchTrackIndex;
2429 // Get all other tracks matched to the cluster
2430 for(Int_t iTrk=0; iTrk<nTracks; ++iTrk)
2432 AliVTrack* track = dynamic_cast<AliVTrack*>(event->GetTrack(iTrk));
2433 if(iTrk == matchTrackIndex) continue;
2434 if(track->GetEMCALcluster() == iClus)
2436 arrayTrackMatched[nMatched] = iTrk;
2441 //printf("Tender::SetTracksMatchedToCluster - cluster E %f, N matches %d, first match %d\n",cluster->E(),nMatched,arrayTrackMatched[0]);
2443 arrayTrackMatched.Set(nMatched);
2444 AliESDCaloCluster *esdcluster = dynamic_cast<AliESDCaloCluster*>(cluster);
2446 esdcluster->AddTracksMatched(arrayTrackMatched);
2447 else if (nMatched>0) {
2448 AliAODCaloCluster *aodcluster = dynamic_cast<AliAODCaloCluster*>(cluster);
2450 aodcluster->AddTrackMatched(event->GetTrack(arrayTrackMatched.At(0)));
2453 Float_t eta= -999, phi = -999;
2454 if (matchTrackIndex != -1)
2455 GetMatchedResiduals(iClus, eta, phi);
2456 cluster->SetTrackDistance(phi, eta);
2459 AliDebug(2,"Cluster matched to tracks");
2462 //___________________________________________________
2463 void AliEMCALRecoUtils::Print(const Option_t *) const
2467 printf("AliEMCALRecoUtils Settings: \n");
2468 printf("Misalignment shifts\n");
2469 for(Int_t i=0; i<5; i++) printf("\t sector %d, traslation (x,y,z)=(%f,%f,%f), rotation (x,y,z)=(%f,%f,%f)\n",i,
2470 fMisalTransShift[i*3],fMisalTransShift[i*3+1],fMisalTransShift[i*3+2],
2471 fMisalRotShift[i*3], fMisalRotShift[i*3+1], fMisalRotShift[i*3+2] );
2472 printf("Non linearity function %d, parameters:\n", fNonLinearityFunction);
2473 for(Int_t i=0; i<6; i++) printf("param[%d]=%f\n",i, fNonLinearityParams[i]);
2475 printf("Position Recalculation option %d, Particle Type %d, fW0 %2.2f, Recalibrate Data %d \n",fPosAlgo,fParticleType,fW0, fRecalibration);
2477 printf("Matching criteria: ");
2480 printf("sqrt(dEta^2+dPhi^2)<%4.3f\n",fCutR);
2482 else if(fCutEtaPhiSeparate)
2484 printf("dEta<%4.3f, dPhi<%4.3f\n",fCutEta,fCutPhi);
2489 printf("please specify your cut criteria\n");
2490 printf("To cut on sqrt(dEta^2+dPhi^2), use: SwitchOnCutEtaPhiSum()\n");
2491 printf("To cut on dEta and dPhi separately, use: SwitchOnCutEtaPhiSeparate()\n");
2494 printf("Mass hypothesis = %2.3f [GeV/c^2], extrapolation step to surface = %2.2f[cm], step to cluster = %2.2f[cm]\n",fMass,fStepSurface, fStepCluster);
2495 printf("Cluster selection window: dR < %2.0f\n",fClusterWindow);
2497 printf("Track cuts: \n");
2498 printf("Minimum track pT: %1.2f\n",fCutMinTrackPt);
2499 printf("AOD track selection mask: %d\n",fAODFilterMask);
2500 printf("TPCRefit = %d, ITSRefit = %d\n",fCutRequireTPCRefit,fCutRequireITSRefit);
2501 printf("AcceptKinks = %d\n",fCutAcceptKinkDaughters);
2502 printf("MinNCulsterTPC = %d, MinNClusterITS = %d\n",fCutMinNClusterTPC,fCutMinNClusterITS);
2503 printf("MaxChi2TPC = %2.2f, MaxChi2ITS = %2.2f\n",fCutMaxChi2PerClusterTPC,fCutMaxChi2PerClusterITS);
2504 printf("DCSToVertex2D = %d, MaxDCAToVertexXY = %2.2f, MaxDCAToVertexZ = %2.2f\n",fCutDCAToVertex2D,fCutMaxDCAToVertexXY,fCutMaxDCAToVertexZ);