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 <AliCentrality.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 kNFclsTPCr, // number of findable clusters in the TPC with more robust definition
83 kNFclsTPCrFrac, // number of found/findable clusters in the TPC with more robust definition
84 kTPCsignalN, // number of points used for dEdx
85 kTPCchi2Cl, // chi2/cl in TPC
86 kTrackStatus, // track status bits
88 kNclsTRD, // number of clusters assigned in the TRD
89 kTRDntracklets, // number of TRD tracklets used for tracking/PID TODO: correct getter
90 kTRDpidQuality, // number of TRD tracklets used for PID
91 kTRDprobEle, // TRD electron pid probability
92 kTRDprobPio, // TRD electron pid probability
94 kImpactParXY, // Impact parameter in XY plane
95 kImpactParZ, // Impact parameter in Z
96 kTrackLength, // Track length
99 kPdgCodeMother, // PDG code of the mother
101 kNumberOfDaughters, // number of daughters
102 kHaveSameMother, // check that particles have the same mother (MC)
103 kIsJpsiPrimary, // check if the particle is primary (MC)
104 kITSsignal, // ITS dE/dx signal
105 kITSsignalSSD1, // SSD1 dE/dx signal
106 kITSsignalSSD2, // SSD2 dE/dx signal
107 kITSsignalSDD1, // SDD1 dE/dx signal
108 kITSsignalSDD2, // SDD2 dE/dx signal
109 kITSclusterMap, // ITS cluster map
110 kITSnSigmaEle, // number of sigmas to the dE/dx electron line in the ITS
111 kITSnSigmaPio, // number of sigmas to the dE/dx pion line in the ITS
112 kITSnSigmaMuo, // number of sigmas to the dE/dx muon line in the ITS
113 kITSnSigmaKao, // number of sigmas to the dE/dx kaon line in the ITS
114 kITSnSigmaPro, // number of sigmas to the dE/dx proton line in the ITS
116 kPIn, // momentum at inner wall of TPC (if available), used for PID
117 kTPCsignal, // TPC dE/dx signal
119 kTPCnSigmaEle, // number of sigmas to the dE/dx electron line in the TPC
120 kTPCnSigmaPio, // number of sigmas to the dE/dx pion line in the TPC
121 kTPCnSigmaMuo, // number of sigmas to the dE/dx muon line in the TPC
122 kTPCnSigmaKao, // number of sigmas to the dE/dx kaon line in the TPC
123 kTPCnSigmaPro, // number of sigmas to the dE/dx proton line in the TPC
125 kTOFnSigmaEle, // number of sigmas to the pion line in the TOF
126 kTOFnSigmaPio, // number of sigmas to the pion line in the TOF
127 kTOFnSigmaMuo, // number of sigmas to the muon line in the TOF
128 kTOFnSigmaKao, // number of sigmas to the kaon line in the TOF
129 kTOFnSigmaPro, // number of sigmas to the proton line in the TOF
131 kKinkIndex0, // kink index 0
134 // TODO: kRNClusters ??
135 // AliDielectronPair specific variables
136 kChi2NDF = kParticleMax, // Chi^2/NDF
137 kDecayLength, // decay length
138 kR, // distance to the origin
139 kOpeningAngle, // opening angle
140 // helicity picture: Z-axis is considered the direction of the mother's 3-momentum vector
141 kThetaHE, // theta in mother's rest frame in the helicity picture
142 kPhiHE, // phi in mother's rest frame in the helicity picture
143 // Collins-Soper picture: Z-axis is considered the direction of the vectorial difference between
144 // the 3-mom vectors of target and projectile beams
145 kThetaCS, // theta in mother's rest frame in Collins-Soper picture
146 kPhiCS, // phi in mother's rest frame in Collins-Soper picture
147 kLegDist, // distance of the legs
148 kLegDistXY, // distance of the legs in XY
149 kDeltaEta, // Absolute value of Delta Eta for the legs
150 kDeltaPhi, // Absolute value of Delta Phi for the legs
151 kMerr, // error of mass calculation
152 kDCA, // distance of closest approach TODO: not implemented yet
153 kPairType, // type of the pair, like like sign ++ unlikesign ...
155 // Event specific variables
156 kXvPrim=kPairMax, // prim vertex
157 kYvPrim, // prim vertex
158 kZvPrim, // prim vertex
159 kXRes, // primary vertex x-resolution
160 kYRes, // primary vertex y-resolution
161 kZRes, // primary vertex z-resolution
162 kNTrk, // number of tracks (or tracklets)
163 kTracks, // ESD tracks
164 kCentrality, // event centrality fraction
165 kNevents, // event counter
167 // TODO: (for A+A) ZDCEnergy, impact parameter, Iflag??
171 AliDielectronVarManager();
172 AliDielectronVarManager(const char* name, const char* title);
173 virtual ~AliDielectronVarManager();
174 static void Fill(const TObject* particle, Double_t * const values);
176 static void InitESDpid(Int_t type=0);
177 static void InitAODpidUtil(Int_t type=0);
178 static void SetESDpid(AliESDpid * const pid) {fgESDpid=pid;}
179 static AliESDpid* GetESDpid() {return fgESDpid;}
180 static AliAODpidUtil* GetAODpidUtil() {return fgAODpidUtil;}
181 static void SetEvent(AliVEvent * const ev);
182 static Bool_t GetDCA(const AliAODTrack *track, Double_t d0z0[2]);
184 static const char* GetValueName(Int_t i) { return (i>=0&&i<kNMaxValues)?fgkParticleNames[i]:""; }
187 static const char* fgkParticleNames[kNMaxValues]; //variable names
189 static void FillVarVParticle(const AliVParticle *particle, Double_t * const values);
190 static void FillVarESDtrack(const AliESDtrack *particle, Double_t * const values);
191 static void FillVarAODTrack(const AliAODTrack *particle, Double_t * const values);
192 static void FillVarMCParticle(const AliMCParticle *particle, Double_t * const values);
193 static void FillVarAODMCParticle(const AliAODMCParticle *particle, Double_t * const values);
194 static void FillVarDielectronPair(const AliDielectronPair *pair, Double_t * const values);
195 static void FillVarKFParticle(const AliKFParticle *pair, Double_t * const values);
197 static void FillVarVEvent(const AliVEvent *event, Double_t * const values);
198 static void FillVarESDEvent(const AliESDEvent *event, Double_t * const values);
199 static void FillVarAODEvent(const AliAODEvent *event, Double_t * const values);
200 static void FillVarMCEvent(const AliMCEvent *event, Double_t * const values);
202 static AliESDpid *fgESDpid; // ESD pid object
203 static AliAODpidUtil *fgAODpidUtil; // AOD pid object
204 static AliVEvent *fgEvent; // current event pointer
205 static AliKFVertex *fgKFVertex; // kf vertex
207 AliDielectronVarManager(const AliDielectronVarManager &c);
208 AliDielectronVarManager &operator=(const AliDielectronVarManager &c);
210 ClassDef(AliDielectronVarManager,1);
215 inline void AliDielectronVarManager::Fill(const TObject* object, Double_t * const values)
218 // Main function to fill all available variables according to the type of particle
220 if (object->IsA() == AliESDtrack::Class()) FillVarESDtrack(static_cast<const AliESDtrack*>(object), values);
221 else if (object->IsA() == AliAODTrack::Class()) FillVarAODTrack(static_cast<const AliAODTrack*>(object), values);
222 else if (object->IsA() == AliMCParticle::Class()) FillVarMCParticle(static_cast<const AliMCParticle*>(object), values);
223 else if (object->IsA() == AliAODMCParticle::Class()) FillVarAODMCParticle(static_cast<const AliAODMCParticle*>(object), values);
224 else if (object->IsA() == AliDielectronPair::Class()) FillVarDielectronPair(static_cast<const AliDielectronPair*>(object), values);
225 else if (object->IsA() == AliKFParticle::Class()) FillVarKFParticle(static_cast<const AliKFParticle*>(object),values);
226 // Main function to fill all available variables according to the type of event
228 else if (object->IsA() == AliVEvent::Class()) FillVarVEvent(static_cast<const AliVEvent*>(object), values);
229 else if (object->IsA() == AliESDEvent::Class()) FillVarESDEvent(static_cast<const AliESDEvent*>(object), values);
230 else if (object->IsA() == AliAODEvent::Class()) FillVarAODEvent(static_cast<const AliAODEvent*>(object), values);
231 else if (object->IsA() == AliMCEvent::Class()) FillVarMCEvent(static_cast<const AliMCEvent*>(object), values);
232 // else printf(Form("AliDielectronVarManager::Fill: Type %s is not supported by AliDielectronVarManager!", object->ClassName())); //TODO: implement without object needed
235 inline void AliDielectronVarManager::FillVarVParticle(const AliVParticle *particle, Double_t * const values)
238 // Fill track information available in AliVParticle into an array
240 values[AliDielectronVarManager::kPx] = particle->Px();
241 values[AliDielectronVarManager::kPy] = particle->Py();
242 values[AliDielectronVarManager::kPz] = particle->Pz();
243 values[AliDielectronVarManager::kPt] = particle->Pt();
244 values[AliDielectronVarManager::kP] = particle->P();
246 values[AliDielectronVarManager::kXv] = particle->Xv();
247 values[AliDielectronVarManager::kYv] = particle->Yv();
248 values[AliDielectronVarManager::kZv] = particle->Zv();
250 values[AliDielectronVarManager::kOneOverPt] = particle->OneOverPt();
251 values[AliDielectronVarManager::kPhi] = particle->Phi();
252 values[AliDielectronVarManager::kTheta] = particle->Theta();
253 values[AliDielectronVarManager::kEta] = particle->Eta();
254 values[AliDielectronVarManager::kY] = particle->Y();
256 values[AliDielectronVarManager::kE] = particle->E();
257 values[AliDielectronVarManager::kM] = particle->M();
258 values[AliDielectronVarManager::kCharge] = particle->Charge();
260 values[AliDielectronVarManager::kPdgCode] = particle->PdgCode();
262 if ( fgEvent ) AliDielectronVarManager::Fill(fgEvent, values);
265 inline void AliDielectronVarManager::FillVarESDtrack(const AliESDtrack *particle, Double_t * const values)
268 // Fill track information available for histogramming into an array
271 // Fill common AliVParticle interface information
272 FillVarVParticle(particle, values);
274 Double_t pidProbs[AliPID::kSPECIES];
275 // Fill AliESDtrack interface specific information
276 Double_t tpcNcls=particle->GetTPCNcls();
277 values[AliDielectronVarManager::kNclsITS] = particle->GetNcls(0); // TODO: get rid of the plain numbers
278 values[AliDielectronVarManager::kNclsTPC] = tpcNcls; // TODO: get rid of the plain numbers
279 values[AliDielectronVarManager::kNclsTPCiter1] = particle->GetTPCNclsIter1(); // TODO: get rid of the plain numbers
280 values[AliDielectronVarManager::kNFclsTPC] = particle->GetTPCNclsF();
281 values[AliDielectronVarManager::kNFclsTPCr] = particle->GetTPCClusterInfo(2,1);
282 values[AliDielectronVarManager::kNFclsTPCrFrac] = particle->GetTPCClusterInfo(2);
283 values[AliDielectronVarManager::kTPCsignalN] = particle->GetTPCsignalN();
284 values[AliDielectronVarManager::kNclsTRD] = particle->GetNcls(2); // TODO: get rid of the plain numbers
285 values[AliDielectronVarManager::kTRDntracklets] = particle->GetTRDntracklets(); // TODO: GetTRDtracklets/GetTRDntracklets?
286 values[AliDielectronVarManager::kTRDpidQuality] = particle->GetTRDpidQuality();
287 values[AliDielectronVarManager::kTrackStatus] = (Double_t)particle->GetStatus();
290 values[AliDielectronVarManager::kTPCchi2Cl] = -1;
291 if (tpcNcls>0) values[AliDielectronVarManager::kTPCchi2Cl] = particle->GetTPCchi2() / tpcNcls;
293 particle->GetTRDpid(pidProbs);
294 values[AliDielectronVarManager::kTRDprobEle] = pidProbs[AliPID::kElectron];
295 values[AliDielectronVarManager::kTRDprobPio] = pidProbs[AliPID::kPion];
297 values[AliDielectronVarManager::kKinkIndex0] = particle->GetKinkIndex(0);
299 Float_t impactParXY, impactParZ;
300 particle->GetImpactParameters(impactParXY, impactParZ);
301 values[AliDielectronVarManager::kImpactParXY] = impactParXY;
302 values[AliDielectronVarManager::kImpactParZ] = impactParZ;
305 values[AliDielectronVarManager::kPdgCode]=0;
306 values[AliDielectronVarManager::kPdgCodeMother]=0;
308 values[AliDielectronVarManager::kNumberOfDaughters]=-999;
310 AliDielectronMC *mc=AliDielectronMC::Instance();
313 if (mc->GetMCTrack(particle))
314 values[AliDielectronVarManager::kPdgCode]=
315 mc->GetMCTrack(particle)->PdgCode();
317 Int_t pdgMother=mc->GetMotherPDG(particle);
319 values[AliDielectronVarManager::kPdgCodeMother]=pdgMother;
321 values[AliDielectronVarManager::kNumberOfDaughters]=mc->NumberOfDaughters(particle);
326 values[AliDielectronVarManager::kITSsignal] = particle->GetITSsignal();
329 particle->GetITSdEdxSamples(itsdEdx);
331 values[AliDielectronVarManager::kITSsignalSSD1] = itsdEdx[0];
332 values[AliDielectronVarManager::kITSsignalSSD2] = itsdEdx[1];
333 values[AliDielectronVarManager::kITSsignalSDD1] = itsdEdx[2];
334 values[AliDielectronVarManager::kITSsignalSDD2] = itsdEdx[3];
335 values[AliDielectronVarManager::kITSclusterMap] = particle->GetITSClusterMap();
337 values[AliDielectronVarManager::kTrackLength] = particle->GetIntegratedLength();
339 Double_t mom = particle->GetP();
340 const AliExternalTrackParam *in=particle->GetInnerParam();
341 if (in) mom = in->GetP();
342 values[AliDielectronVarManager::kPIn]=mom;
343 values[AliDielectronVarManager::kTPCsignal]=particle->GetTPCsignal();
344 // nsigma to Electron band
345 // TODO: for the moment we set the bethe bloch parameters manually
346 // this should be changed in future!
348 values[AliDielectronVarManager::kTPCnSigmaEle]=fgESDpid->NumberOfSigmasTPC(particle,AliPID::kElectron)-AliDielectronPID::GetCorrVal();
349 values[AliDielectronVarManager::kTPCnSigmaPio]=fgESDpid->NumberOfSigmasTPC(particle,AliPID::kPion);
350 values[AliDielectronVarManager::kTPCnSigmaMuo]=fgESDpid->NumberOfSigmasTPC(particle,AliPID::kMuon);
351 values[AliDielectronVarManager::kTPCnSigmaKao]=fgESDpid->NumberOfSigmasTPC(particle,AliPID::kKaon);
352 values[AliDielectronVarManager::kTPCnSigmaPro]=fgESDpid->NumberOfSigmasTPC(particle,AliPID::kProton);
354 values[AliDielectronVarManager::kITSnSigmaEle]=fgESDpid->NumberOfSigmasITS(particle,AliPID::kElectron);
355 values[AliDielectronVarManager::kITSnSigmaPio]=fgESDpid->NumberOfSigmasITS(particle,AliPID::kPion);
356 values[AliDielectronVarManager::kITSnSigmaMuo]=fgESDpid->NumberOfSigmasITS(particle,AliPID::kMuon);
357 values[AliDielectronVarManager::kITSnSigmaKao]=fgESDpid->NumberOfSigmasITS(particle,AliPID::kKaon);
358 values[AliDielectronVarManager::kITSnSigmaPro]=fgESDpid->NumberOfSigmasITS(particle,AliPID::kProton);
360 Double_t t0=fgESDpid->GetTOFResponse().GetTimeZero();
361 values[AliDielectronVarManager::kTOFnSigmaEle]=fgESDpid->NumberOfSigmasTOF(particle,AliPID::kElectron,t0);
362 values[AliDielectronVarManager::kTOFnSigmaPio]=fgESDpid->NumberOfSigmasTOF(particle,AliPID::kPion,t0);
363 values[AliDielectronVarManager::kTOFnSigmaMuo]=fgESDpid->NumberOfSigmasTOF(particle,AliPID::kMuon,t0);
364 values[AliDielectronVarManager::kTOFnSigmaKao]=fgESDpid->NumberOfSigmasTOF(particle,AliPID::kKaon,t0);
365 values[AliDielectronVarManager::kTOFnSigmaPro]=fgESDpid->NumberOfSigmasTOF(particle,AliPID::kProton,t0);
368 inline void AliDielectronVarManager::FillVarAODTrack(const AliAODTrack *particle, Double_t * const values)
371 // Fill track information available for histogramming into an array
374 // Fill common AliVParticle interface information
375 FillVarVParticle(particle, values);
377 // Reset AliESDtrack interface specific information
378 values[AliDielectronVarManager::kNclsITS] = 0;
379 values[AliDielectronVarManager::kNclsTPC] = particle->GetTPCNcls();
380 values[AliDielectronVarManager::kNclsTPCiter1] = particle->GetTPCNcls(); // not really available in AOD
381 values[AliDielectronVarManager::kNFclsTPC] = 0;
382 values[AliDielectronVarManager::kNFclsTPCr] = 0;
383 values[AliDielectronVarManager::kNFclsTPCrFrac] = 0;
384 values[AliDielectronVarManager::kNclsTRD] = 0;
385 values[AliDielectronVarManager::kTRDntracklets] = 0;
386 values[AliDielectronVarManager::kTRDpidQuality] = 0;
388 values[AliDielectronVarManager::kTPCchi2Cl] = -1;
389 values[AliDielectronVarManager::kTrackStatus] = (Double_t)particle->GetStatus();
392 //TODO: set correctly
393 values[AliDielectronVarManager::kTRDprobEle] = 0;
394 values[AliDielectronVarManager::kTRDprobPio] = 0;
396 //TODO: This is only an approximation!!!
397 values[AliDielectronVarManager::kTPCsignalN] = 0;
399 // Fill AliAODTrack interface information
402 GetDCA(particle, d0z0);
403 values[AliDielectronVarManager::kImpactParXY] = d0z0[0];
404 values[AliDielectronVarManager::kImpactParZ] = d0z0[1];
406 values[AliDielectronVarManager::kPIn]=0;
407 values[AliDielectronVarManager::kTPCsignal]=0;
409 values[AliDielectronVarManager::kTPCnSigmaEle]=0;
410 values[AliDielectronVarManager::kTPCnSigmaPio]=0;
411 values[AliDielectronVarManager::kTPCnSigmaMuo]=0;
412 values[AliDielectronVarManager::kTPCnSigmaKao]=0;
413 values[AliDielectronVarManager::kTPCnSigmaPro]=0;
415 values[AliDielectronVarManager::kITSclusterMap] = particle->GetITSClusterMap();
417 AliAODPid *pid=particle->GetDetPid();
419 Double_t mom =pid->GetTPCmomentum();
420 values[AliDielectronVarManager::kTPCsignalN] = pid->GetTPCsignalN();
421 Double_t tpcNsigmaEle=fgAODpidUtil->NumberOfSigmasTPC(particle,AliPID::kElectron);
422 Double_t tpcNsigmaPio=fgAODpidUtil->NumberOfSigmasTPC(particle,AliPID::kPion);
423 Double_t tpcNsigmaMuo=fgAODpidUtil->NumberOfSigmasTPC(particle,AliPID::kMuon);
424 Double_t tpcNsigmaKao=fgAODpidUtil->NumberOfSigmasTPC(particle,AliPID::kKaon);
425 Double_t tpcNsigmaPro=fgAODpidUtil->NumberOfSigmasTPC(particle,AliPID::kProton);
427 values[AliDielectronVarManager::kPIn]=mom;
428 values[AliDielectronVarManager::kTPCsignal]=pid->GetTPCsignal();
430 values[AliDielectronVarManager::kTPCnSigmaEle]=tpcNsigmaEle;
431 values[AliDielectronVarManager::kTPCnSigmaPio]=tpcNsigmaPio;
432 values[AliDielectronVarManager::kTPCnSigmaMuo]=tpcNsigmaMuo;
433 values[AliDielectronVarManager::kTPCnSigmaKao]=tpcNsigmaKao;
434 values[AliDielectronVarManager::kTPCnSigmaPro]=tpcNsigmaPro;
436 values[AliDielectronVarManager::kTRDntracklets] = 0;
437 values[AliDielectronVarManager::kTRDpidQuality] = 0;
442 inline void AliDielectronVarManager::FillVarMCParticle(const AliMCParticle *particle, Double_t * const values)
445 // Fill track information available for histogramming into an array
448 values[AliDielectronVarManager::kNclsITS] = 0;
449 values[AliDielectronVarManager::kNclsTPC] = 0;
450 values[AliDielectronVarManager::kNclsTPCiter1] = 0;
451 values[AliDielectronVarManager::kNFclsTPC] = 0;
452 values[AliDielectronVarManager::kNFclsTPCr] = 0;
453 values[AliDielectronVarManager::kNFclsTPCrFrac] = 0;
454 values[AliDielectronVarManager::kNclsTRD] = 0;
455 values[AliDielectronVarManager::kTRDntracklets] = 0;
456 values[AliDielectronVarManager::kTRDpidQuality] = 0;
457 values[AliDielectronVarManager::kTPCchi2Cl] = 0;
458 values[AliDielectronVarManager::kTrackStatus] = 0;
459 values[AliDielectronVarManager::kTRDprobEle] = 0;
460 values[AliDielectronVarManager::kTRDprobPio] = 0;
461 values[AliDielectronVarManager::kTPCsignalN] = 0;
462 values[AliDielectronVarManager::kImpactParXY] = 0;
463 values[AliDielectronVarManager::kImpactParZ] = 0;
464 values[AliDielectronVarManager::kPIn] = 0;
465 values[AliDielectronVarManager::kTPCsignal] = 0;
466 values[AliDielectronVarManager::kTPCnSigmaEle] = 0;
467 values[AliDielectronVarManager::kTPCnSigmaPio] = 0;
468 values[AliDielectronVarManager::kTPCnSigmaMuo] = 0;
469 values[AliDielectronVarManager::kTPCnSigmaKao] = 0;
470 values[AliDielectronVarManager::kTPCnSigmaPro] = 0;
471 values[AliDielectronVarManager::kITSclusterMap] = 0;
473 values[AliDielectronVarManager::kPdgCode] = 0;
474 values[AliDielectronVarManager::kPdgCodeMother] = 0;
476 // Fill common AliVParticle interface information
477 FillVarVParticle(particle, values);
479 AliDielectronMC *mc=AliDielectronMC::Instance();
481 // Fill AliMCParticle interface specific information
482 values[AliDielectronVarManager::kPdgCode] = particle->PdgCode();
484 AliMCParticle *mother = mc->GetMCTrackMother(particle);
485 if (mother) values[AliDielectronVarManager::kPdgCodeMother] = mother->PdgCode();
487 values[AliDielectronVarManager::kIsJpsiPrimary] = mc->IsJpsiPrimary(particle);
488 values[AliDielectronVarManager::kNumberOfDaughters]=mc->NumberOfDaughters(particle);
491 inline void AliDielectronVarManager::FillVarAODMCParticle(const AliAODMCParticle *particle, Double_t * const values)
494 // Fill track information available for histogramming into an array
497 values[AliDielectronVarManager::kNclsITS] = 0;
498 values[AliDielectronVarManager::kNclsTPC] = 0;
499 values[AliDielectronVarManager::kNclsTPCiter1] = 0;
500 values[AliDielectronVarManager::kNFclsTPC] = 0;
501 values[AliDielectronVarManager::kNclsTRD] = 0;
502 values[AliDielectronVarManager::kTRDntracklets] = 0;
503 values[AliDielectronVarManager::kTRDpidQuality] = 0;
504 values[AliDielectronVarManager::kTPCchi2Cl] = 0;
505 values[AliDielectronVarManager::kTrackStatus] = 0;
506 values[AliDielectronVarManager::kTRDprobEle] = 0;
507 values[AliDielectronVarManager::kTRDprobPio] = 0;
508 values[AliDielectronVarManager::kTPCsignalN] = 0;
509 values[AliDielectronVarManager::kImpactParXY] = 0;
510 values[AliDielectronVarManager::kImpactParZ] = 0;
511 values[AliDielectronVarManager::kPIn] = 0;
512 values[AliDielectronVarManager::kTPCsignal] = 0;
513 values[AliDielectronVarManager::kTPCnSigmaEle] = 0;
514 values[AliDielectronVarManager::kTPCnSigmaPio] = 0;
515 values[AliDielectronVarManager::kTPCnSigmaMuo] = 0;
516 values[AliDielectronVarManager::kTPCnSigmaKao] = 0;
517 values[AliDielectronVarManager::kTPCnSigmaPro] = 0;
518 values[AliDielectronVarManager::kITSclusterMap] = 0;
520 values[AliDielectronVarManager::kPdgCode] = 0;
521 values[AliDielectronVarManager::kPdgCodeMother] = 0;
523 // Fill common AliVParticle interface information
524 FillVarVParticle(particle, values);
526 AliDielectronMC *mc=AliDielectronMC::Instance();
529 // Fill AliAODMCParticle interface specific information
530 values[AliDielectronVarManager::kPdgCode] = particle->PdgCode();
532 AliVParticle *mother = mc->GetMCTrackMother(particle);
533 if (mother) values[AliDielectronVarManager::kPdgCodeMother] = mother->PdgCode();
534 values[AliDielectronVarManager::kIsJpsiPrimary] = mc->IsJpsiPrimary(particle);
536 values[AliDielectronVarManager::kNumberOfDaughters]=mc->NumberOfDaughters(particle);
539 inline void AliDielectronVarManager::FillVarDielectronPair(const AliDielectronPair *pair, Double_t * const values)
542 // Fill pair information available for histogramming into an array
545 values[AliDielectronVarManager::kPdgCode]=0;
546 values[AliDielectronVarManager::kPdgCodeMother]=0;
548 // Fill common AliVParticle interface information
549 FillVarVParticle(pair, values);
551 // Fill AliDielectronPair specific information
552 const AliKFParticle &kfPair = pair->GetKFParticle();
559 pair->GetThetaPhiCM(thetaHE,phiHE,thetaCS,phiCS);
561 values[AliDielectronVarManager::kChi2NDF] = kfPair.GetChi2()/kfPair.GetNDF();
562 values[AliDielectronVarManager::kDecayLength] = kfPair.GetDecayLength();
563 values[AliDielectronVarManager::kR] = kfPair.GetR();
564 values[AliDielectronVarManager::kOpeningAngle] = pair->OpeningAngle();
565 values[AliDielectronVarManager::kThetaHE] = thetaHE;
566 values[AliDielectronVarManager::kPhiHE] = phiHE;
567 values[AliDielectronVarManager::kThetaCS] = thetaCS;
568 values[AliDielectronVarManager::kPhiCS] = phiCS;
569 values[AliDielectronVarManager::kLegDist] = pair->DistanceDaughters();
570 values[AliDielectronVarManager::kLegDistXY] = pair->DistanceDaughtersXY();
571 values[AliDielectronVarManager::kDeltaEta] = pair->DeltaEta();
572 values[AliDielectronVarManager::kDeltaPhi] = pair->DeltaPhi();
573 values[AliDielectronVarManager::kMerr] = kfPair.GetErrMass()>1e-30&&kfPair.GetMass()>1e-30?kfPair.GetErrMass()/kfPair.GetMass():1000000;
574 values[AliDielectronVarManager::kPairType] = pair->GetType();
578 AliDielectronMC *mc=AliDielectronMC::Instance();
581 Bool_t samemother = mc->HaveSameMother(pair);
582 values[AliDielectronVarManager::kIsJpsiPrimary] = mc->IsJpsiPrimary(pair);
583 values[AliDielectronVarManager::kHaveSameMother] = samemother ;
589 inline void AliDielectronVarManager::FillVarKFParticle(const AliKFParticle *particle, Double_t * const values)
592 // Fill track information available in AliVParticle into an array
594 values[AliDielectronVarManager::kPx] = particle->GetPx();
595 values[AliDielectronVarManager::kPy] = particle->GetPy();
596 values[AliDielectronVarManager::kPz] = particle->GetPz();
597 values[AliDielectronVarManager::kPt] = particle->GetPt();
598 values[AliDielectronVarManager::kP] = particle->GetP();
600 values[AliDielectronVarManager::kXv] = particle->GetX();
601 values[AliDielectronVarManager::kYv] = particle->GetY();
602 values[AliDielectronVarManager::kZv] = particle->GetZ();
604 values[AliDielectronVarManager::kOneOverPt] = 0;
605 values[AliDielectronVarManager::kPhi] = particle->GetPhi();
606 values[AliDielectronVarManager::kTheta] = 0.;
607 values[AliDielectronVarManager::kEta] = particle->GetEta();
608 values[AliDielectronVarManager::kY] = ((particle->GetE()*particle->GetE()-particle->GetPx()*particle->GetPx()-particle->GetPy()*particle->GetPy()-particle->GetPz()*particle->GetPz())>0.) ? TLorentzVector(particle->GetPx(),particle->GetPy(),particle->GetPz(),particle->GetE()).Rapidity() : -1111.;
610 values[AliDielectronVarManager::kE] = particle->GetE();
611 values[AliDielectronVarManager::kM] = particle->GetMass();
612 values[AliDielectronVarManager::kCharge] = particle->GetQ();
614 values[AliDielectronVarManager::kNclsITS] = 0;
615 values[AliDielectronVarManager::kNclsTPC] = 0;
616 values[AliDielectronVarManager::kNclsTPCiter1] = 0;
617 values[AliDielectronVarManager::kNFclsTPC] = 0;
618 values[AliDielectronVarManager::kNclsTRD] = 0;
619 values[AliDielectronVarManager::kTRDntracklets] = 0;
620 values[AliDielectronVarManager::kTRDpidQuality] = 0;
621 values[AliDielectronVarManager::kTPCchi2Cl] = 0;
622 values[AliDielectronVarManager::kTrackStatus] = 0;
623 values[AliDielectronVarManager::kTRDprobEle] = 0;
624 values[AliDielectronVarManager::kTRDprobPio] = 0;
625 values[AliDielectronVarManager::kTPCsignalN] = 0;
626 values[AliDielectronVarManager::kImpactParXY] = 0;
627 values[AliDielectronVarManager::kImpactParZ] = 0;
628 values[AliDielectronVarManager::kPIn] = 0;
629 values[AliDielectronVarManager::kTPCsignal] = 0;
630 values[AliDielectronVarManager::kTPCnSigmaEle] = 0;
631 values[AliDielectronVarManager::kTPCnSigmaPio] = 0;
632 values[AliDielectronVarManager::kTPCnSigmaMuo] = 0;
633 values[AliDielectronVarManager::kTPCnSigmaKao] = 0;
634 values[AliDielectronVarManager::kTPCnSigmaPro] = 0;
635 values[AliDielectronVarManager::kITSclusterMap] = 0;
637 values[AliDielectronVarManager::kPdgCode] = 0;
638 values[AliDielectronVarManager::kPdgCodeMother] = 0;
641 if ( fgEvent ) AliDielectronVarManager::Fill(fgEvent, values);
644 inline void AliDielectronVarManager::FillVarVEvent(const AliVEvent *event, Double_t * const values)
647 // Fill event information available for histogramming into an array
649 const AliVVertex *primVtx = event->GetPrimaryVertex();
651 values[AliDielectronVarManager::kXvPrim] = 0;
652 values[AliDielectronVarManager::kYvPrim] = 0;
653 values[AliDielectronVarManager::kZvPrim] = 0;
654 values[AliDielectronVarManager::kChi2NDF] = 0;
656 values[AliDielectronVarManager::kNTrk] = 0;
657 values[AliDielectronVarManager::kNevents] = 0; //always fill bin 0;
659 if (!primVtx) return;
661 values[AliDielectronVarManager::kXvPrim] = primVtx->GetX();
662 values[AliDielectronVarManager::kYvPrim] = primVtx->GetY();
663 values[AliDielectronVarManager::kZvPrim] = primVtx->GetZ();
664 values[AliDielectronVarManager::kChi2NDF] = primVtx->GetChi2perNDF();
666 values[AliDielectronVarManager::kNTrk] = event->GetNumberOfTracks();
669 inline void AliDielectronVarManager::FillVarESDEvent(const AliESDEvent *event, Double_t * const values)
672 // Fill event information available for histogramming into an array
675 // Fill common AliVEvent interface information
676 FillVarVEvent(event, values);
678 Double_t centralityF=-1;
679 AliCentrality *esdCentrality = const_cast<AliESDEvent*>(event)->GetCentrality();
680 if (esdCentrality) centralityF = esdCentrality->GetCentralityPercentile("V0M");
682 // Fill AliESDEvent interface specific information
683 const AliESDVertex *primVtx = event->GetPrimaryVertex();
684 values[AliDielectronVarManager::kXRes] = primVtx->GetXRes();
685 values[AliDielectronVarManager::kYRes] = primVtx->GetYRes();
686 values[AliDielectronVarManager::kZRes] = primVtx->GetZRes();
687 values[AliDielectronVarManager::kCentrality] = centralityF;
690 inline void AliDielectronVarManager::FillVarAODEvent(const AliAODEvent *event, Double_t * const values)
693 // Fill event information available for histogramming into an array
696 // Fill common AliVEvent interface information
697 FillVarVEvent(event, values);
699 // Fill AliAODEvent interface specific information
702 inline void AliDielectronVarManager::FillVarMCEvent(const AliMCEvent *event, Double_t * const values)
705 // Fill event information available for histogramming into an array
708 // Fill common AliVEvent interface information
709 FillVarVEvent(event, values);
711 // Fill AliMCEvent interface specific information
714 inline void AliDielectronVarManager::InitESDpid(Int_t type)
717 // initialize PID parameters
718 // type=0 is simulation
721 if (!fgESDpid) fgESDpid=new AliESDpid;
722 Double_t alephParameters[5];
724 alephParameters[0] = 2.15898e+00/50.;
725 alephParameters[1] = 1.75295e+01;
726 alephParameters[2] = 3.40030e-09;
727 alephParameters[3] = 1.96178e+00;
728 alephParameters[4] = 3.91720e+00;
729 fgESDpid->GetTOFResponse().SetTimeResolution(80.);
733 alephParameters[0] = 0.0283086/0.97;
734 alephParameters[1] = 2.63394e+01;
735 alephParameters[2] = 5.04114e-11;
736 alephParameters[3] = 2.12543e+00;
737 alephParameters[4] = 4.88663e+00;
738 fgESDpid->GetTOFResponse().SetTimeResolution(130.);
739 fgESDpid->GetTPCResponse().SetMip(50.);
742 fgESDpid->GetTPCResponse().SetBetheBlochParameters(
743 alephParameters[0],alephParameters[1],alephParameters[2],
744 alephParameters[3],alephParameters[4]);
746 fgESDpid->GetTPCResponse().SetSigma(3.79301e-03, 2.21280e+04);
749 inline void AliDielectronVarManager::InitAODpidUtil(Int_t type)
751 if (!fgAODpidUtil) fgAODpidUtil=new AliAODpidUtil;
752 Double_t alephParameters[5];
754 alephParameters[0] = 2.15898e+00/50.;
755 alephParameters[1] = 1.75295e+01;
756 alephParameters[2] = 3.40030e-09;
757 alephParameters[3] = 1.96178e+00;
758 alephParameters[4] = 3.91720e+00;
759 fgAODpidUtil->GetTOFResponse().SetTimeResolution(80.);
763 alephParameters[0] = 0.0283086/0.97;
764 alephParameters[1] = 2.63394e+01;
765 alephParameters[2] = 5.04114e-11;
766 alephParameters[3] = 2.12543e+00;
767 alephParameters[4] = 4.88663e+00;
768 fgAODpidUtil->GetTOFResponse().SetTimeResolution(130.);
769 fgAODpidUtil->GetTPCResponse().SetMip(50.);
772 fgAODpidUtil->GetTPCResponse().SetBetheBlochParameters(
773 alephParameters[0],alephParameters[1],alephParameters[2],
774 alephParameters[3],alephParameters[4]);
776 fgAODpidUtil->GetTPCResponse().SetSigma(3.79301e-03, 2.21280e+04);
780 inline void AliDielectronVarManager::SetEvent(AliVEvent * const ev)
784 if (fgKFVertex) delete fgKFVertex;
786 if (ev && ev->GetPrimaryVertex()) fgKFVertex=new AliKFVertex(*ev->GetPrimaryVertex());
790 inline Bool_t AliDielectronVarManager::GetDCA(const AliAODTrack *track, Double_t d0z0[2])
792 if(track->TestBit(AliAODTrack::kIsDCA)){
793 d0z0[0]=track->DCA();
794 d0z0[1]=track->ZAtDCA();
799 AliAODTrack copy(*track);
800 AliAODVertex *vtx =(AliAODVertex*)(fgEvent->GetPrimaryVertex());
801 Double_t fBzkG = fgEvent->GetMagneticField(); // z componenent of field in kG
802 Bool_t ok = copy.PropagateToDCA(vtx,fBzkG,kVeryBig,d0z0,covd0z0);
811 inline void AliDielectronVarManager::FillValues(const TParticle *particle, Double_t *values)
814 // Fill track information available for histogramming into an array
817 // Fill TParticle interface information
818 values[AliDielectronVarManager::kPx] = particle->Px();
819 values[AliDielectronVarManager::kPy] = particle->Py();
820 values[AliDielectronVarManager::kPz] = particle->Pz();
821 values[AliDielectronVarManager::kPt] = particle->Pt();
822 values[AliDielectronVarManager::kP] = particle->P();
824 values[AliDielectronVarManager::kXv] = particle->Vx();
825 values[AliDielectronVarManager::kYv] = particle->Vy();
826 values[AliDielectronVarManager::kZv] = particle->Vz();
828 values[AliDielectronVarManager::kOneOverPt] = 1./particle->Pt();
829 values[AliDielectronVarManager::kPhi] = particle->Phi();
830 values[AliDielectronVarManager::kTheta] =
831 values[AliDielectronVarManager::kEta] = particle->Eta();
832 values[AliDielectronVarManager::kY] =
834 values[AliDielectronVarManager::kE] = particle->Energy();
835 values[AliDielectronVarManager::kM] = particle->GetMass();
837 values[AliDielectronVarManager::kCharge] = particle->GetPDG()->Charge()/3; // uggly