1 #ifndef ALIDIELECTRONVARMANAGER_H
2 #define ALIDIELECTRONVARMANAGER_H
3 /* Copyright(c) 1998-2009, ALICE Experiment at CERN, All rights reserved. *
4 * See cxx source for full Copyright notice */
6 //#############################################################
8 //# Class AliDielectronVarManager #
9 //# Class for management of available variables #
12 //# Anton Andronic, GSI / A.Andronic@gsi.de #
13 //# Ionut C. Arsene, GSI / I.C.Arsene@gsi.de #
14 //# Julian Book, Uni Ffm / Julian.Book@cern.ch #
15 //# Markus Köhler, GSI / M.Koehler@gsi.de #
16 //# Frederick Kramer, Uni Ffm / Frederick.Kramer@cern.ch #
17 //# Magnus Mager, CERN / Magnus.Mager@cern.ch #
18 //# WooJin J. Park, GSI / W.J.Park@gsi.de #
19 //# Jens Wiechula, Uni HD / Jens.Wiechula@cern.ch #
21 //#############################################################
26 #include <AliVEvent.h>
27 #include <AliESDEvent.h>
28 #include <AliAODEvent.h>
29 #include <AliMCEvent.h>
30 #include <AliVVertex.h>
31 #include <AliESDVertex.h>
33 #include <AliVParticle.h>
34 #include <AliESDtrack.h>
35 #include <AliAODTrack.h>
36 #include <AliAODPid.h>
37 #include <AliKFParticle.h>
38 #include <AliKFVertex.h>
39 #include <AliMCParticle.h>
40 #include <AliAODMCParticle.h>
41 #include <AliVTrack.h> // ?
43 #include <AliExternalTrackParam.h>
44 #include <AliESDpid.h>
45 #include <AliESDCentrality.h>
46 #include <AliAODpidUtil.h>
49 #include "AliDielectronPair.h"
50 #include "AliDielectronMC.h"
51 #include "AliDielectronPID.h"
55 //________________________________________________________________
56 class AliDielectronVarManager : public TNamed {
60 // Particle specific variables
65 kPt, // transverse momentum
67 kXv, // vertex position in x
68 kYv, // vertex position in y
69 kZv, // vertex position in z
72 kTheta, // theta angle
73 kEta, // pseudo-rapidity
78 kNclsITS, // number of clusters assigned in the ITS
79 kNclsTPC, // number of clusters assigned in the TPC
80 kNclsTPCiter1, // number of clusters assigned in the TPC after first iteration
81 kNFclsTPC, // number of findable clusters in the TPC
82 kTPCsignalN, // number of points used for dEdx
83 kTPCchi2Cl, // chi2/cl in TPC
84 kTrackStatus, // track status bits
86 kNclsTRD, // number of clusters assigned in the TRD
87 kTRDntracklets, // number of TRD tracklets used for tracking/PID TODO: correct getter
88 kTRDpidQuality, // number of TRD tracklets used for PID
89 kTRDprobEle, // TRD electron pid probability
90 kTRDprobPio, // TRD electron pid probability
92 kImpactParXY, // Impact parameter in XY plane
93 kImpactParZ, // Impact parameter in Z
94 kTrackLength, // Track length
97 kPdgCodeMother, // PDG code of the mother
99 kNumberOfDaughters, // number of daughters
100 kHaveSameMother, // check that particles have the same mother (MC)
101 kITSsignal, // ITS dE/dx signal
102 kITSsignalSSD1, // SSD1 dE/dx signal
103 kITSsignalSSD2, // SSD2 dE/dx signal
104 kITSsignalSDD1, // SDD1 dE/dx signal
105 kITSsignalSDD2, // SDD2 dE/dx signal
106 kITSclusterMap, // ITS cluster map
107 kITSnSigmaEle, // number of sigmas to the dE/dx electron line in the ITS
108 kITSnSigmaPio, // number of sigmas to the dE/dx pion line in the ITS
109 kITSnSigmaMuo, // number of sigmas to the dE/dx muon line in the ITS
110 kITSnSigmaKao, // number of sigmas to the dE/dx kaon line in the ITS
111 kITSnSigmaPro, // number of sigmas to the dE/dx proton line in the ITS
113 kPIn, // momentum at inner wall of TPC (if available), used for PID
114 kTPCsignal, // TPC dE/dx signal
116 kTPCnSigmaEle, // number of sigmas to the dE/dx electron line in the TPC
117 kTPCnSigmaPio, // number of sigmas to the dE/dx pion line in the TPC
118 kTPCnSigmaMuo, // number of sigmas to the dE/dx muon line in the TPC
119 kTPCnSigmaKao, // number of sigmas to the dE/dx kaon line in the TPC
120 kTPCnSigmaPro, // number of sigmas to the dE/dx proton line in the TPC
122 kTOFnSigmaEle, // number of sigmas to the pion line in the TOF
123 kTOFnSigmaPio, // number of sigmas to the pion line in the TOF
124 kTOFnSigmaMuo, // number of sigmas to the muon line in the TOF
125 kTOFnSigmaKao, // number of sigmas to the kaon line in the TOF
126 kTOFnSigmaPro, // number of sigmas to the proton line in the TOF
128 kKinkIndex0, // kink index 0
131 // TODO: kRNClusters ??
132 // AliDielectronPair specific variables
133 kChi2NDF = kParticleMax, // Chi^2/NDF
134 kDecayLength, // decay length
135 kR, // distance to the origin
136 kOpeningAngle, // opening angle
137 // helicity picture: Z-axis is considered the direction of the mother's 3-momentum vector
138 kThetaHE, // theta in mother's rest frame in the helicity picture
139 kPhiHE, // phi in mother's rest frame in the helicity picture
140 // Collins-Soper picture: Z-axis is considered the direction of the vectorial difference between
141 // the 3-mom vectors of target and projectile beams
142 kThetaCS, // theta in mother's rest frame in Collins-Soper picture
143 kPhiCS, // phi in mother's rest frame in Collins-Soper picture
144 kLegDist, // distance of the legs
145 kLegDistXY, // distance of the legs in XY
146 kDeltaEta, // Absolute value of Delta Eta for the legs
147 kDeltaPhi, // Absolute value of Delta Phi for the legs
148 kMerr, // error of mass calculation
149 kDCA, // distance of closest approach TODO: not implemented yet
150 kPairType, // type of the pair, like like sign ++ unlikesign ...
152 // Event specific variables
153 kXvPrim=kPairMax, // prim vertex
154 kYvPrim, // prim vertex
155 kZvPrim, // prim vertex
156 kXRes, // primary vertex x-resolution
157 kYRes, // primary vertex y-resolution
158 kZRes, // primary vertex z-resolution
159 kNTrk, // number of tracks (or tracklets)
160 kTracks, // ESD tracks
161 kCentrality, // event centrality fraction
162 kNevents, // event counter
164 // TODO: (for A+A) ZDCEnergy, impact parameter, Iflag??
168 AliDielectronVarManager();
169 AliDielectronVarManager(const char* name, const char* title);
170 virtual ~AliDielectronVarManager();
171 static void Fill(const TObject* particle, Double_t * const values);
173 static void InitESDpid(Int_t type=0);
174 static void InitAODpidUtil(Int_t type=0);
175 static void SetESDpid(AliESDpid * const pid) {fgESDpid=pid;}
176 static AliESDpid* GetESDpid() {return fgESDpid;}
177 static AliAODpidUtil* GetAODpidUtil() {return fgAODpidUtil;}
178 static void SetEvent(AliVEvent * const ev);
179 static Bool_t GetDCA(const AliAODTrack *track, Double_t d0z0[2]);
181 static const char* GetValueName(Int_t i) { return (i>=0&&i<kNMaxValues)?fgkParticleNames[i]:""; }
184 static const char* fgkParticleNames[kNMaxValues]; //variable names
186 static void FillVarVParticle(const AliVParticle *particle, Double_t * const values);
187 static void FillVarESDtrack(const AliESDtrack *particle, Double_t * const values);
188 static void FillVarAODTrack(const AliAODTrack *particle, Double_t * const values);
189 static void FillVarMCParticle(const AliMCParticle *particle, Double_t * const values);
190 static void FillVarAODMCParticle(const AliAODMCParticle *particle, Double_t * const values);
191 static void FillVarDielectronPair(const AliDielectronPair *pair, Double_t * const values);
192 static void FillVarVEvent(const AliVEvent *event, Double_t * const values);
193 static void FillVarESDEvent(const AliESDEvent *event, Double_t * const values);
194 static void FillVarAODEvent(const AliAODEvent *event, Double_t * const values);
195 static void FillVarMCEvent(const AliMCEvent *event, Double_t * const values);
197 static AliESDpid *fgESDpid; // ESD pid object
198 static AliAODpidUtil *fgAODpidUtil; // AOD pid object
199 static AliVEvent *fgEvent; // current event pointer
200 static AliKFVertex *fgKFVertex; // kf vertex
202 AliDielectronVarManager(const AliDielectronVarManager &c);
203 AliDielectronVarManager &operator=(const AliDielectronVarManager &c);
205 ClassDef(AliDielectronVarManager,1);
210 inline void AliDielectronVarManager::Fill(const TObject* object, Double_t * const values)
213 // Main function to fill all available variables according to the type of particle
216 if (object->IsA() == AliESDtrack::Class()) FillVarESDtrack(static_cast<const AliESDtrack*>(object), values);
217 else if (object->IsA() == AliAODTrack::Class()) FillVarAODTrack(static_cast<const AliAODTrack*>(object), values);
218 else if (object->IsA() == AliMCParticle::Class()) FillVarMCParticle(static_cast<const AliMCParticle*>(object), values);
219 else if (object->IsA() == AliAODMCParticle::Class()) FillVarAODMCParticle(static_cast<const AliAODMCParticle*>(object), values);
220 else if (object->IsA() == AliDielectronPair::Class()) FillVarDielectronPair(static_cast<const AliDielectronPair*>(object), values);
222 // Main function to fill all available variables according to the type of event
224 else if (object->IsA() == AliVEvent::Class()) FillVarVEvent(static_cast<const AliVEvent*>(object), values);
225 else if (object->IsA() == AliESDEvent::Class()) FillVarESDEvent(static_cast<const AliESDEvent*>(object), values);
226 else if (object->IsA() == AliAODEvent::Class()) FillVarAODEvent(static_cast<const AliAODEvent*>(object), values);
227 else if (object->IsA() == AliMCEvent::Class()) FillVarMCEvent(static_cast<const AliMCEvent*>(object), values);
228 // else Error("Fill",Form("Type %s is not supported by AliDielectronVarManager!", object->ClassName())); //TODO: implement without object needed
231 inline void AliDielectronVarManager::FillVarVParticle(const AliVParticle *particle, Double_t * const values)
234 // Fill track information available in AliVParticle into an array
236 values[AliDielectronVarManager::kPx] = particle->Px();
237 values[AliDielectronVarManager::kPy] = particle->Py();
238 values[AliDielectronVarManager::kPz] = particle->Pz();
239 values[AliDielectronVarManager::kPt] = particle->Pt();
240 values[AliDielectronVarManager::kP] = particle->P();
242 values[AliDielectronVarManager::kXv] = particle->Xv();
243 values[AliDielectronVarManager::kYv] = particle->Yv();
244 values[AliDielectronVarManager::kZv] = particle->Zv();
246 values[AliDielectronVarManager::kOneOverPt] = particle->OneOverPt();
247 values[AliDielectronVarManager::kPhi] = particle->Phi();
248 values[AliDielectronVarManager::kTheta] = particle->Theta();
249 values[AliDielectronVarManager::kEta] = particle->Eta();
250 values[AliDielectronVarManager::kY] = particle->Y();
252 values[AliDielectronVarManager::kE] = particle->E();
253 values[AliDielectronVarManager::kM] = particle->M();
254 values[AliDielectronVarManager::kCharge] = particle->Charge();
256 values[AliDielectronVarManager::kPdgCode] = particle->PdgCode();
258 if ( fgEvent ) AliDielectronVarManager::Fill(fgEvent, values);
261 inline void AliDielectronVarManager::FillVarESDtrack(const AliESDtrack *particle, Double_t * const values)
264 // Fill track information available for histogramming into an array
267 // Fill common AliVParticle interface information
268 FillVarVParticle(particle, values);
270 Double_t pidProbs[AliPID::kSPECIES];
271 // Fill AliESDtrack interface specific information
272 Double_t tpcNcls=particle->GetTPCNcls();
273 values[AliDielectronVarManager::kNclsITS] = particle->GetNcls(0); // TODO: get rid of the plain numbers
274 values[AliDielectronVarManager::kNclsTPC] = tpcNcls; // TODO: get rid of the plain numbers
275 values[AliDielectronVarManager::kNclsTPCiter1] = particle->GetTPCNclsIter1(); // TODO: get rid of the plain numbers
276 values[AliDielectronVarManager::kNFclsTPC] = particle->GetTPCNclsF();
277 values[AliDielectronVarManager::kTPCsignalN] = particle->GetTPCsignalN();
278 values[AliDielectronVarManager::kNclsTRD] = particle->GetNcls(2); // TODO: get rid of the plain numbers
279 values[AliDielectronVarManager::kTRDntracklets] = particle->GetTRDntracklets(); // TODO: GetTRDtracklets/GetTRDntracklets?
280 values[AliDielectronVarManager::kTRDpidQuality] = particle->GetTRDpidQuality();
281 values[AliDielectronVarManager::kTrackStatus] = (Double_t)particle->GetStatus();
284 values[AliDielectronVarManager::kTPCchi2Cl] = -1;
285 if (tpcNcls>0) values[AliDielectronVarManager::kTPCchi2Cl] = particle->GetTPCchi2() / tpcNcls;
287 particle->GetTRDpid(pidProbs);
288 values[AliDielectronVarManager::kTRDprobEle] = pidProbs[AliPID::kElectron];
289 values[AliDielectronVarManager::kTRDprobPio] = pidProbs[AliPID::kPion];
291 values[AliDielectronVarManager::kKinkIndex0] = particle->GetKinkIndex(0);
293 Float_t impactParXY, impactParZ;
294 particle->GetImpactParameters(impactParXY, impactParZ);
295 values[AliDielectronVarManager::kImpactParXY] = impactParXY;
296 values[AliDielectronVarManager::kImpactParZ] = impactParZ;
299 values[AliDielectronVarManager::kPdgCode]=0;
300 values[AliDielectronVarManager::kPdgCodeMother]=0;
302 values[AliDielectronVarManager::kNumberOfDaughters]=-999;
304 AliDielectronMC *mc=AliDielectronMC::Instance();
307 if (mc->GetMCTrack(particle))
308 values[AliDielectronVarManager::kPdgCode]=
309 mc->GetMCTrack(particle)->PdgCode();
311 Int_t pdgMother=mc->GetMotherPDG(particle);
313 values[AliDielectronVarManager::kPdgCodeMother]=pdgMother;
315 values[AliDielectronVarManager::kNumberOfDaughters]=mc->NumberOfDaughters(particle);
320 values[AliDielectronVarManager::kITSsignal] = particle->GetITSsignal();
323 particle->GetITSdEdxSamples(itsdEdx);
325 values[AliDielectronVarManager::kITSsignalSSD1] = itsdEdx[0];
326 values[AliDielectronVarManager::kITSsignalSSD2] = itsdEdx[1];
327 values[AliDielectronVarManager::kITSsignalSDD1] = itsdEdx[2];
328 values[AliDielectronVarManager::kITSsignalSDD2] = itsdEdx[3];
329 values[AliDielectronVarManager::kITSclusterMap] = particle->GetITSClusterMap();
331 values[AliDielectronVarManager::kTrackLength] = particle->GetIntegratedLength();
333 Double_t mom = particle->GetP();
334 const AliExternalTrackParam *in=particle->GetInnerParam();
335 if (in) mom = in->GetP();
336 values[AliDielectronVarManager::kPIn]=mom;
337 values[AliDielectronVarManager::kTPCsignal]=particle->GetTPCsignal();
338 // nsigma to Electron band
339 // TODO: for the moment we set the bethe bloch parameters manually
340 // this should be changed in future!
342 values[AliDielectronVarManager::kTPCnSigmaEle]=fgESDpid->NumberOfSigmasTPC(particle,AliPID::kElectron)-AliDielectronPID::GetCorrVal();
343 values[AliDielectronVarManager::kTPCnSigmaPio]=fgESDpid->NumberOfSigmasTPC(particle,AliPID::kPion);
344 values[AliDielectronVarManager::kTPCnSigmaMuo]=fgESDpid->NumberOfSigmasTPC(particle,AliPID::kMuon);
345 values[AliDielectronVarManager::kTPCnSigmaKao]=fgESDpid->NumberOfSigmasTPC(particle,AliPID::kKaon);
346 values[AliDielectronVarManager::kTPCnSigmaPro]=fgESDpid->NumberOfSigmasTPC(particle,AliPID::kProton);
348 values[AliDielectronVarManager::kITSnSigmaEle]=fgESDpid->NumberOfSigmasITS(particle,AliPID::kElectron);
349 values[AliDielectronVarManager::kITSnSigmaPio]=fgESDpid->NumberOfSigmasITS(particle,AliPID::kPion);
350 values[AliDielectronVarManager::kITSnSigmaMuo]=fgESDpid->NumberOfSigmasITS(particle,AliPID::kMuon);
351 values[AliDielectronVarManager::kITSnSigmaKao]=fgESDpid->NumberOfSigmasITS(particle,AliPID::kKaon);
352 values[AliDielectronVarManager::kITSnSigmaPro]=fgESDpid->NumberOfSigmasITS(particle,AliPID::kProton);
354 Double_t t0=fgESDpid->GetTOFResponse().GetTimeZero();
355 values[AliDielectronVarManager::kTOFnSigmaEle]=fgESDpid->NumberOfSigmasTOF(particle,AliPID::kElectron,t0);
356 values[AliDielectronVarManager::kTOFnSigmaPio]=fgESDpid->NumberOfSigmasTOF(particle,AliPID::kPion,t0);
357 values[AliDielectronVarManager::kTOFnSigmaMuo]=fgESDpid->NumberOfSigmasTOF(particle,AliPID::kMuon,t0);
358 values[AliDielectronVarManager::kTOFnSigmaKao]=fgESDpid->NumberOfSigmasTOF(particle,AliPID::kKaon,t0);
359 values[AliDielectronVarManager::kTOFnSigmaPro]=fgESDpid->NumberOfSigmasTOF(particle,AliPID::kProton,t0);
362 inline void AliDielectronVarManager::FillVarAODTrack(const AliAODTrack *particle, Double_t * const values)
365 // Fill track information available for histogramming into an array
368 // Fill common AliVParticle interface information
369 FillVarVParticle(particle, values);
371 // Reset AliESDtrack interface specific information
372 values[AliDielectronVarManager::kNclsITS] = 0;
373 values[AliDielectronVarManager::kNclsTPC] = particle->GetTPCNcls();
374 values[AliDielectronVarManager::kNclsTPCiter1] = particle->GetTPCNcls(); // not really available in AOD
375 values[AliDielectronVarManager::kNFclsTPC] = 0;
376 values[AliDielectronVarManager::kNclsTRD] = 0;
377 values[AliDielectronVarManager::kTRDntracklets] = 0;
378 values[AliDielectronVarManager::kTRDpidQuality] = 0;
380 values[AliDielectronVarManager::kTPCchi2Cl] = -1;
381 values[AliDielectronVarManager::kTrackStatus] = (Double_t)particle->GetStatus();
384 //TODO: set correctly
385 values[AliDielectronVarManager::kTRDprobEle] = 0;
386 values[AliDielectronVarManager::kTRDprobPio] = 0;
388 //TODO: This is only an approximation!!!
389 values[AliDielectronVarManager::kTPCsignalN] = 0;
391 // Fill AliAODTrack interface information
394 GetDCA(particle, d0z0);
395 values[AliDielectronVarManager::kImpactParXY] = d0z0[0];
396 values[AliDielectronVarManager::kImpactParZ] = d0z0[1];
398 values[AliDielectronVarManager::kPIn]=0;
399 values[AliDielectronVarManager::kTPCsignal]=0;
401 values[AliDielectronVarManager::kTPCnSigmaEle]=0;
402 values[AliDielectronVarManager::kTPCnSigmaPio]=0;
403 values[AliDielectronVarManager::kTPCnSigmaMuo]=0;
404 values[AliDielectronVarManager::kTPCnSigmaKao]=0;
405 values[AliDielectronVarManager::kTPCnSigmaPro]=0;
407 values[AliDielectronVarManager::kITSclusterMap] = particle->GetITSClusterMap();
409 AliAODPid *pid=particle->GetDetPid();
411 Double_t mom =pid->GetTPCmomentum();
412 values[AliDielectronVarManager::kTPCsignalN] = pid->GetTPCsignalN();
413 Double_t tpcNsigmaEle=fgAODpidUtil->NumberOfSigmasTPC(particle,AliPID::kElectron);
414 Double_t tpcNsigmaPio=fgAODpidUtil->NumberOfSigmasTPC(particle,AliPID::kPion);
415 Double_t tpcNsigmaMuo=fgAODpidUtil->NumberOfSigmasTPC(particle,AliPID::kMuon);
416 Double_t tpcNsigmaKao=fgAODpidUtil->NumberOfSigmasTPC(particle,AliPID::kKaon);
417 Double_t tpcNsigmaPro=fgAODpidUtil->NumberOfSigmasTPC(particle,AliPID::kProton);
419 values[AliDielectronVarManager::kPIn]=mom;
420 values[AliDielectronVarManager::kTPCsignal]=pid->GetTPCsignal();
422 values[AliDielectronVarManager::kTPCnSigmaEle]=tpcNsigmaEle;
423 values[AliDielectronVarManager::kTPCnSigmaPio]=tpcNsigmaPio;
424 values[AliDielectronVarManager::kTPCnSigmaMuo]=tpcNsigmaMuo;
425 values[AliDielectronVarManager::kTPCnSigmaKao]=tpcNsigmaKao;
426 values[AliDielectronVarManager::kTPCnSigmaPro]=tpcNsigmaPro;
428 values[AliDielectronVarManager::kTRDntracklets] = 0;
429 values[AliDielectronVarManager::kTRDpidQuality] = 0;
434 inline void AliDielectronVarManager::FillVarMCParticle(const AliMCParticle *particle, Double_t * const values)
437 // Fill track information available for histogramming into an array
440 values[AliDielectronVarManager::kNclsITS] = 0;
441 values[AliDielectronVarManager::kNclsTPC] = 0;
442 values[AliDielectronVarManager::kNclsTPCiter1] = 0;
443 values[AliDielectronVarManager::kNFclsTPC] = 0;
444 values[AliDielectronVarManager::kNclsTRD] = 0;
445 values[AliDielectronVarManager::kTRDntracklets] = 0;
446 values[AliDielectronVarManager::kTRDpidQuality] = 0;
447 values[AliDielectronVarManager::kTPCchi2Cl] = 0;
448 values[AliDielectronVarManager::kTrackStatus] = 0;
449 values[AliDielectronVarManager::kTRDprobEle] = 0;
450 values[AliDielectronVarManager::kTRDprobPio] = 0;
451 values[AliDielectronVarManager::kTPCsignalN] = 0;
452 values[AliDielectronVarManager::kImpactParXY] = 0;
453 values[AliDielectronVarManager::kImpactParZ] = 0;
454 values[AliDielectronVarManager::kPIn] = 0;
455 values[AliDielectronVarManager::kTPCsignal] = 0;
456 values[AliDielectronVarManager::kTPCnSigmaEle] = 0;
457 values[AliDielectronVarManager::kTPCnSigmaPio] = 0;
458 values[AliDielectronVarManager::kTPCnSigmaMuo] = 0;
459 values[AliDielectronVarManager::kTPCnSigmaKao] = 0;
460 values[AliDielectronVarManager::kTPCnSigmaPro] = 0;
461 values[AliDielectronVarManager::kITSclusterMap] = 0;
463 values[AliDielectronVarManager::kPdgCode] = 0;
464 values[AliDielectronVarManager::kPdgCodeMother] = 0;
466 // Fill common AliVParticle interface information
467 FillVarVParticle(particle, values);
469 AliDielectronMC *mc=AliDielectronMC::Instance();
471 // Fill AliMCParticle interface specific information
472 values[AliDielectronVarManager::kPdgCode] = particle->PdgCode();
474 AliMCParticle *mother = mc->GetMCTrackMother(particle);
475 if (mother) values[AliDielectronVarManager::kPdgCodeMother] = mother->PdgCode();
478 values[AliDielectronVarManager::kNumberOfDaughters]=mc->NumberOfDaughters(particle);
481 inline void AliDielectronVarManager::FillVarAODMCParticle(const AliAODMCParticle *particle, Double_t * const values)
484 // Fill track information available for histogramming into an array
487 values[AliDielectronVarManager::kNclsITS] = 0;
488 values[AliDielectronVarManager::kNclsTPC] = 0;
489 values[AliDielectronVarManager::kNclsTPCiter1] = 0;
490 values[AliDielectronVarManager::kNFclsTPC] = 0;
491 values[AliDielectronVarManager::kNclsTRD] = 0;
492 values[AliDielectronVarManager::kTRDntracklets] = 0;
493 values[AliDielectronVarManager::kTRDpidQuality] = 0;
494 values[AliDielectronVarManager::kTPCchi2Cl] = 0;
495 values[AliDielectronVarManager::kTrackStatus] = 0;
496 values[AliDielectronVarManager::kTRDprobEle] = 0;
497 values[AliDielectronVarManager::kTRDprobPio] = 0;
498 values[AliDielectronVarManager::kTPCsignalN] = 0;
499 values[AliDielectronVarManager::kImpactParXY] = 0;
500 values[AliDielectronVarManager::kImpactParZ] = 0;
501 values[AliDielectronVarManager::kPIn] = 0;
502 values[AliDielectronVarManager::kTPCsignal] = 0;
503 values[AliDielectronVarManager::kTPCnSigmaEle] = 0;
504 values[AliDielectronVarManager::kTPCnSigmaPio] = 0;
505 values[AliDielectronVarManager::kTPCnSigmaMuo] = 0;
506 values[AliDielectronVarManager::kTPCnSigmaKao] = 0;
507 values[AliDielectronVarManager::kTPCnSigmaPro] = 0;
508 values[AliDielectronVarManager::kITSclusterMap] = 0;
510 values[AliDielectronVarManager::kPdgCode] = 0;
511 values[AliDielectronVarManager::kPdgCodeMother] = 0;
513 // Fill common AliVParticle interface information
514 FillVarVParticle(particle, values);
516 AliDielectronMC *mc=AliDielectronMC::Instance();
519 // Fill AliAODMCParticle interface specific information
520 values[AliDielectronVarManager::kPdgCode] = particle->PdgCode();
522 AliVParticle *mother = mc->GetMCTrackMother(particle);
523 if (mother) values[AliDielectronVarManager::kPdgCodeMother] = mother->PdgCode();
525 values[AliDielectronVarManager::kNumberOfDaughters]=mc->NumberOfDaughters(particle);
528 inline void AliDielectronVarManager::FillVarDielectronPair(const AliDielectronPair *pair, Double_t * const values)
531 // Fill pair information available for histogramming into an array
534 values[AliDielectronVarManager::kPdgCode]=0;
535 values[AliDielectronVarManager::kPdgCodeMother]=0;
537 // Fill common AliVParticle interface information
538 FillVarVParticle(pair, values);
540 // Fill AliDielectronPair specific information
541 const AliKFParticle &kfPair = pair->GetKFParticle();
548 pair->GetThetaPhiCM(thetaHE,phiHE,thetaCS,phiCS);
550 values[AliDielectronVarManager::kChi2NDF] = kfPair.GetChi2()/kfPair.GetNDF();
551 values[AliDielectronVarManager::kDecayLength] = kfPair.GetDecayLength();
552 values[AliDielectronVarManager::kR] = kfPair.GetR();
553 values[AliDielectronVarManager::kOpeningAngle] = pair->OpeningAngle();
554 values[AliDielectronVarManager::kThetaHE] = thetaHE;
555 values[AliDielectronVarManager::kPhiHE] = phiHE;
556 values[AliDielectronVarManager::kThetaCS] = thetaCS;
557 values[AliDielectronVarManager::kPhiCS] = phiCS;
558 values[AliDielectronVarManager::kLegDist] = pair->DistanceDaughters();
559 values[AliDielectronVarManager::kLegDistXY] = pair->DistanceDaughtersXY();
560 values[AliDielectronVarManager::kDeltaEta] = pair->DeltaEta();
561 values[AliDielectronVarManager::kDeltaPhi] = pair->DeltaPhi();
562 values[AliDielectronVarManager::kMerr] = kfPair.GetErrMass()>1e-30&&kfPair.GetMass()>1e-30?kfPair.GetErrMass()/kfPair.GetMass():1000000;
563 values[AliDielectronVarManager::kPairType] = pair->GetType();
567 AliDielectronMC *mc=AliDielectronMC::Instance();
570 Bool_t samemother = mc->HaveSameMother(pair);
571 values[AliDielectronVarManager::kHaveSameMother] = samemother ;
578 inline void AliDielectronVarManager::FillVarVEvent(const AliVEvent *event, Double_t * const values)
581 // Fill event information available for histogramming into an array
583 const AliVVertex *primVtx = event->GetPrimaryVertex();
585 values[AliDielectronVarManager::kXvPrim] = 0;
586 values[AliDielectronVarManager::kYvPrim] = 0;
587 values[AliDielectronVarManager::kZvPrim] = 0;
588 values[AliDielectronVarManager::kChi2NDF] = 0;
590 values[AliDielectronVarManager::kNTrk] = 0;
591 values[AliDielectronVarManager::kNevents] = 0; //always fill bin 0;
593 if (!primVtx) return;
595 values[AliDielectronVarManager::kXvPrim] = primVtx->GetX();
596 values[AliDielectronVarManager::kYvPrim] = primVtx->GetY();
597 values[AliDielectronVarManager::kZvPrim] = primVtx->GetZ();
598 values[AliDielectronVarManager::kChi2NDF] = primVtx->GetChi2perNDF();
600 values[AliDielectronVarManager::kNTrk] = event->GetNumberOfTracks();
603 inline void AliDielectronVarManager::FillVarESDEvent(const AliESDEvent *event, Double_t * const values)
606 // Fill event information available for histogramming into an array
609 // Fill common AliVEvent interface information
610 FillVarVEvent(event, values);
612 Double_t centralityF=-1;
613 AliESDCentrality *esdCentrality = const_cast<AliESDEvent*>(event)->GetCentrality();
614 if (esdCentrality) centralityF = esdCentrality->GetCentralityPercentile("V0M");
616 // Fill AliESDEvent interface specific information
617 const AliESDVertex *primVtx = event->GetPrimaryVertex();
618 values[AliDielectronVarManager::kXRes] = primVtx->GetXRes();
619 values[AliDielectronVarManager::kYRes] = primVtx->GetYRes();
620 values[AliDielectronVarManager::kZRes] = primVtx->GetZRes();
621 values[AliDielectronVarManager::kCentrality] = centralityF;
624 inline void AliDielectronVarManager::FillVarAODEvent(const AliAODEvent *event, Double_t * const values)
627 // Fill event information available for histogramming into an array
630 // Fill common AliVEvent interface information
631 FillVarVEvent(event, values);
633 // Fill AliAODEvent interface specific information
636 inline void AliDielectronVarManager::FillVarMCEvent(const AliMCEvent *event, Double_t * const values)
639 // Fill event information available for histogramming into an array
642 // Fill common AliVEvent interface information
643 FillVarVEvent(event, values);
645 // Fill AliMCEvent interface specific information
648 inline void AliDielectronVarManager::InitESDpid(Int_t type)
651 // initialize PID parameters
652 // type=0 is simulation
655 if (!fgESDpid) fgESDpid=new AliESDpid;
656 Double_t alephParameters[5];
658 alephParameters[0] = 2.15898e+00/50.;
659 alephParameters[1] = 1.75295e+01;
660 alephParameters[2] = 3.40030e-09;
661 alephParameters[3] = 1.96178e+00;
662 alephParameters[4] = 3.91720e+00;
663 fgESDpid->GetTOFResponse().SetTimeResolution(80.);
667 alephParameters[0] = 0.0283086/0.97;
668 alephParameters[1] = 2.63394e+01;
669 alephParameters[2] = 5.04114e-11;
670 alephParameters[3] = 2.12543e+00;
671 alephParameters[4] = 4.88663e+00;
672 fgESDpid->GetTOFResponse().SetTimeResolution(130.);
673 fgESDpid->GetTPCResponse().SetMip(50.);
676 fgESDpid->GetTPCResponse().SetBetheBlochParameters(
677 alephParameters[0],alephParameters[1],alephParameters[2],
678 alephParameters[3],alephParameters[4]);
680 fgESDpid->GetTPCResponse().SetSigma(3.79301e-03, 2.21280e+04);
683 inline void AliDielectronVarManager::InitAODpidUtil(Int_t type)
685 if (!fgAODpidUtil) fgAODpidUtil=new AliAODpidUtil;
686 Double_t alephParameters[5];
688 alephParameters[0] = 2.15898e+00/50.;
689 alephParameters[1] = 1.75295e+01;
690 alephParameters[2] = 3.40030e-09;
691 alephParameters[3] = 1.96178e+00;
692 alephParameters[4] = 3.91720e+00;
693 fgAODpidUtil->GetTOFResponse().SetTimeResolution(80.);
697 alephParameters[0] = 0.0283086/0.97;
698 alephParameters[1] = 2.63394e+01;
699 alephParameters[2] = 5.04114e-11;
700 alephParameters[3] = 2.12543e+00;
701 alephParameters[4] = 4.88663e+00;
702 fgAODpidUtil->GetTOFResponse().SetTimeResolution(130.);
703 fgAODpidUtil->GetTPCResponse().SetMip(50.);
706 fgAODpidUtil->GetTPCResponse().SetBetheBlochParameters(
707 alephParameters[0],alephParameters[1],alephParameters[2],
708 alephParameters[3],alephParameters[4]);
710 fgAODpidUtil->GetTPCResponse().SetSigma(3.79301e-03, 2.21280e+04);
714 inline void AliDielectronVarManager::SetEvent(AliVEvent * const ev)
718 if (fgKFVertex) delete fgKFVertex;
720 if (ev && ev->GetPrimaryVertex()) fgKFVertex=new AliKFVertex(*ev->GetPrimaryVertex());
724 inline Bool_t AliDielectronVarManager::GetDCA(const AliAODTrack *track, Double_t d0z0[2])
726 if(track->TestBit(AliAODTrack::kIsDCA)){
727 d0z0[0]=track->DCA();
728 d0z0[1]=track->ZAtDCA();
733 AliAODTrack copy(*track);
734 AliAODVertex *vtx =(AliAODVertex*)(fgEvent->GetPrimaryVertex());
735 Double_t fBzkG = fgEvent->GetMagneticField(); // z componenent of field in kG
736 Bool_t ok = copy.PropagateToDCA(vtx,fBzkG,kVeryBig,d0z0,covd0z0);
745 inline void AliDielectronVarManager::FillValues(const TParticle *particle, Double_t *values)
748 // Fill track information available for histogramming into an array
751 // Fill TParticle interface information
752 values[AliDielectronVarManager::kPx] = particle->Px();
753 values[AliDielectronVarManager::kPy] = particle->Py();
754 values[AliDielectronVarManager::kPz] = particle->Pz();
755 values[AliDielectronVarManager::kPt] = particle->Pt();
756 values[AliDielectronVarManager::kP] = particle->P();
758 values[AliDielectronVarManager::kXv] = particle->Vx();
759 values[AliDielectronVarManager::kYv] = particle->Vy();
760 values[AliDielectronVarManager::kZv] = particle->Vz();
762 values[AliDielectronVarManager::kOneOverPt] = 1./particle->Pt();
763 values[AliDielectronVarManager::kPhi] = particle->Phi();
764 values[AliDielectronVarManager::kTheta] =
765 values[AliDielectronVarManager::kEta] = particle->Eta();
766 values[AliDielectronVarManager::kY] =
768 values[AliDielectronVarManager::kE] = particle->Energy();
769 values[AliDielectronVarManager::kM] = particle->GetMass();
771 values[AliDielectronVarManager::kCharge] = particle->GetPDG()->Charge()/3; // uggly