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AliESDCentrality replaced by AliCentrality
[u/mrichter/AliRoot.git] / PWG3 / dielectron / AliDielectronVarManager.h
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b2a297fa 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 */
5
6//#############################################################
7//# #
8//# Class AliDielectronVarManager #
9//# Class for management of available variables #
10//# #
11//# Authors: #
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 #
572b0139 15//# Markus Köhler, GSI / M.Koehler@gsi.de #
6551594b 16//# Frederick Kramer, Uni Ffm / Frederick.Kramer@cern.ch #
b2a297fa 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 #
20//# #
21//#############################################################
22
23
24#include <TNamed.h>
25
26#include <AliVEvent.h>
27#include <AliESDEvent.h>
6551594b 28#include <AliAODEvent.h>
29#include <AliMCEvent.h>
30#include <AliVVertex.h>
31#include <AliESDVertex.h>
b2a297fa 32
33#include <AliVParticle.h>
b2a297fa 34#include <AliESDtrack.h>
35#include <AliAODTrack.h>
572b0139 36#include <AliAODPid.h>
b2a297fa 37#include <AliKFParticle.h>
572b0139 38#include <AliKFVertex.h>
b2a297fa 39#include <AliMCParticle.h>
40#include <AliAODMCParticle.h>
41#include <AliVTrack.h> // ?
42
6551594b 43#include <AliExternalTrackParam.h>
44#include <AliESDpid.h>
4649c75b 45#include <AliCentrality.h>
2a14a7b1 46#include <AliAODpidUtil.h>
8df8e382 47#include <AliPID.h>
6551594b 48
b2a297fa 49#include "AliDielectronPair.h"
8df8e382 50#include "AliDielectronMC.h"
48609e3d 51#include "AliDielectronPID.h"
b2a297fa 52
53class AliVEvent;
54
55//________________________________________________________________
56class AliDielectronVarManager : public TNamed {
57
58public:
8df8e382 59
b2a297fa 60 // Particle specific variables
61 enum ValueTypes {
62 kPx = 0, // px
63 kPy, // py
64 kPz, // pz
65 kPt, // transverse momentum
66 kP, // momentum
67 kXv, // vertex position in x
68 kYv, // vertex position in y
69 kZv, // vertex position in z
70 kOneOverPt, // 1/pt
71 kPhi, // phi angle
72 kTheta, // theta angle
73 kEta, // pseudo-rapidity
74 kY, // rapidity
75 kE, // energy
76 kM, // mass
77 kCharge, // charge
78 kNclsITS, // number of clusters assigned in the ITS
79 kNclsTPC, // number of clusters assigned in the TPC
554e40f8 80 kNclsTPCiter1, // number of clusters assigned in the TPC after first iteration
b2a297fa 81 kNFclsTPC, // number of findable clusters in the TPC
45b2b1b8 82 kNFclsTPCr, // number of findable clusters in the TPC with more robust definition
b2a297fa 83 kTPCsignalN, // number of points used for dEdx
61d106d3 84 kTPCchi2Cl, // chi2/cl in TPC
85 kTrackStatus, // track status bits
8df8e382 86
b2a297fa 87 kNclsTRD, // number of clusters assigned in the TRD
88 kTRDntracklets, // number of TRD tracklets used for tracking/PID TODO: correct getter
89 kTRDpidQuality, // number of TRD tracklets used for PID
8df8e382 90 kTRDprobEle, // TRD electron pid probability
91 kTRDprobPio, // TRD electron pid probability
92
b2a297fa 93 kImpactParXY, // Impact parameter in XY plane
94 kImpactParZ, // Impact parameter in Z
95 kTrackLength, // Track length
96 kPdgCode, // PDG code
8df8e382 97
98 kPdgCodeMother, // PDG code of the mother
99
100 kNumberOfDaughters, // number of daughters
101 kHaveSameMother, // check that particles have the same mother (MC)
102 kITSsignal, // ITS dE/dx signal
103 kITSsignalSSD1, // SSD1 dE/dx signal
104 kITSsignalSSD2, // SSD2 dE/dx signal
105 kITSsignalSDD1, // SDD1 dE/dx signal
106 kITSsignalSDD2, // SDD2 dE/dx signal
3505bfad 107 kITSclusterMap, // ITS cluster map
9143d69f 108 kITSnSigmaEle, // number of sigmas to the dE/dx electron line in the ITS
109 kITSnSigmaPio, // number of sigmas to the dE/dx pion line in the ITS
110 kITSnSigmaMuo, // number of sigmas to the dE/dx muon line in the ITS
111 kITSnSigmaKao, // number of sigmas to the dE/dx kaon line in the ITS
112 kITSnSigmaPro, // number of sigmas to the dE/dx proton line in the ITS
8df8e382 113
b2a297fa 114 kPIn, // momentum at inner wall of TPC (if available), used for PID
115 kTPCsignal, // TPC dE/dx signal
572b0139 116
6551594b 117 kTPCnSigmaEle, // number of sigmas to the dE/dx electron line in the TPC
572b0139 118 kTPCnSigmaPio, // number of sigmas to the dE/dx pion line in the TPC
119 kTPCnSigmaMuo, // number of sigmas to the dE/dx muon line in the TPC
120 kTPCnSigmaKao, // number of sigmas to the dE/dx kaon line in the TPC
121 kTPCnSigmaPro, // number of sigmas to the dE/dx proton line in the TPC
122
8df8e382 123 kTOFnSigmaEle, // number of sigmas to the pion line in the TOF
572b0139 124 kTOFnSigmaPio, // number of sigmas to the pion line in the TOF
125 kTOFnSigmaMuo, // number of sigmas to the muon line in the TOF
126 kTOFnSigmaKao, // number of sigmas to the kaon line in the TOF
127 kTOFnSigmaPro, // number of sigmas to the proton line in the TOF
8df8e382 128
ffbede40 129 kKinkIndex0, // kink index 0
130
b2a297fa 131 kParticleMax, //
132 // TODO: kRNClusters ??
133 // AliDielectronPair specific variables
134 kChi2NDF = kParticleMax, // Chi^2/NDF
135 kDecayLength, // decay length
136 kR, // distance to the origin
137 kOpeningAngle, // opening angle
8df8e382 138 // helicity picture: Z-axis is considered the direction of the mother's 3-momentum vector
139 kThetaHE, // theta in mother's rest frame in the helicity picture
140 kPhiHE, // phi in mother's rest frame in the helicity picture
141 // Collins-Soper picture: Z-axis is considered the direction of the vectorial difference between
142 // the 3-mom vectors of target and projectile beams
143 kThetaCS, // theta in mother's rest frame in Collins-Soper picture
144 kPhiCS, // phi in mother's rest frame in Collins-Soper picture
572b0139 145 kLegDist, // distance of the legs
146 kLegDistXY, // distance of the legs in XY
61d106d3 147 kDeltaEta, // Absolute value of Delta Eta for the legs
148 kDeltaPhi, // Absolute value of Delta Phi for the legs
b2a297fa 149 kMerr, // error of mass calculation
150 kDCA, // distance of closest approach TODO: not implemented yet
151 kPairType, // type of the pair, like like sign ++ unlikesign ...
152 kPairMax, //
153 // Event specific variables
6551594b 154 kXvPrim=kPairMax, // prim vertex
155 kYvPrim, // prim vertex
156 kZvPrim, // prim vertex
157 kXRes, // primary vertex x-resolution
158 kYRes, // primary vertex y-resolution
159 kZRes, // primary vertex z-resolution
b2a297fa 160 kNTrk, // number of tracks (or tracklets)
6551594b 161 kTracks, // ESD tracks
ffbede40 162 kCentrality, // event centrality fraction
6551594b 163 kNevents, // event counter
b2a297fa 164 kNMaxValues //
165 // TODO: (for A+A) ZDCEnergy, impact parameter, Iflag??
166 };
167
168
169 AliDielectronVarManager();
170 AliDielectronVarManager(const char* name, const char* title);
171 virtual ~AliDielectronVarManager();
172 static void Fill(const TObject* particle, Double_t * const values);
173
6551594b 174 static void InitESDpid(Int_t type=0);
2a14a7b1 175 static void InitAODpidUtil(Int_t type=0);
572b0139 176 static void SetESDpid(AliESDpid * const pid) {fgESDpid=pid;}
177 static AliESDpid* GetESDpid() {return fgESDpid;}
2a14a7b1 178 static AliAODpidUtil* GetAODpidUtil() {return fgAODpidUtil;}
572b0139 179 static void SetEvent(AliVEvent * const ev);
2a14a7b1 180 static Bool_t GetDCA(const AliAODTrack *track, Double_t d0z0[2]);
181
b2a297fa 182 static const char* GetValueName(Int_t i) { return (i>=0&&i<kNMaxValues)?fgkParticleNames[i]:""; }
183private:
184
185 static const char* fgkParticleNames[kNMaxValues]; //variable names
186
187 static void FillVarVParticle(const AliVParticle *particle, Double_t * const values);
188 static void FillVarESDtrack(const AliESDtrack *particle, Double_t * const values);
189 static void FillVarAODTrack(const AliAODTrack *particle, Double_t * const values);
8df8e382 190 static void FillVarMCParticle(const AliMCParticle *particle, Double_t * const values);
b2a297fa 191 static void FillVarAODMCParticle(const AliAODMCParticle *particle, Double_t * const values);
192 static void FillVarDielectronPair(const AliDielectronPair *pair, Double_t * const values);
6551594b 193 static void FillVarVEvent(const AliVEvent *event, Double_t * const values);
194 static void FillVarESDEvent(const AliESDEvent *event, Double_t * const values);
195 static void FillVarAODEvent(const AliAODEvent *event, Double_t * const values);
196 static void FillVarMCEvent(const AliMCEvent *event, Double_t * const values);
8df8e382 197
2a14a7b1 198 static AliESDpid *fgESDpid; // ESD pid object
199 static AliAODpidUtil *fgAODpidUtil; // AOD pid object
200 static AliVEvent *fgEvent; // current event pointer
201 static AliKFVertex *fgKFVertex; // kf vertex
572b0139 202
b2a297fa 203 AliDielectronVarManager(const AliDielectronVarManager &c);
204 AliDielectronVarManager &operator=(const AliDielectronVarManager &c);
205
206 ClassDef(AliDielectronVarManager,1);
207};
208
209
210//Inline functions
6551594b 211inline void AliDielectronVarManager::Fill(const TObject* object, Double_t * const values)
b2a297fa 212{
213 //
214 // Main function to fill all available variables according to the type of particle
215 //
216
6551594b 217 if (object->IsA() == AliESDtrack::Class()) FillVarESDtrack(static_cast<const AliESDtrack*>(object), values);
218 else if (object->IsA() == AliAODTrack::Class()) FillVarAODTrack(static_cast<const AliAODTrack*>(object), values);
219 else if (object->IsA() == AliMCParticle::Class()) FillVarMCParticle(static_cast<const AliMCParticle*>(object), values);
220 else if (object->IsA() == AliAODMCParticle::Class()) FillVarAODMCParticle(static_cast<const AliAODMCParticle*>(object), values);
221 else if (object->IsA() == AliDielectronPair::Class()) FillVarDielectronPair(static_cast<const AliDielectronPair*>(object), values);
222
223 // Main function to fill all available variables according to the type of event
224
225 else if (object->IsA() == AliVEvent::Class()) FillVarVEvent(static_cast<const AliVEvent*>(object), values);
226 else if (object->IsA() == AliESDEvent::Class()) FillVarESDEvent(static_cast<const AliESDEvent*>(object), values);
227 else if (object->IsA() == AliAODEvent::Class()) FillVarAODEvent(static_cast<const AliAODEvent*>(object), values);
228 else if (object->IsA() == AliMCEvent::Class()) FillVarMCEvent(static_cast<const AliMCEvent*>(object), values);
229// else Error("Fill",Form("Type %s is not supported by AliDielectronVarManager!", object->ClassName())); //TODO: implement without object needed
b2a297fa 230}
231
232inline void AliDielectronVarManager::FillVarVParticle(const AliVParticle *particle, Double_t * const values)
233{
234 //
235 // Fill track information available in AliVParticle into an array
236 //
237 values[AliDielectronVarManager::kPx] = particle->Px();
238 values[AliDielectronVarManager::kPy] = particle->Py();
239 values[AliDielectronVarManager::kPz] = particle->Pz();
240 values[AliDielectronVarManager::kPt] = particle->Pt();
241 values[AliDielectronVarManager::kP] = particle->P();
242
243 values[AliDielectronVarManager::kXv] = particle->Xv();
244 values[AliDielectronVarManager::kYv] = particle->Yv();
245 values[AliDielectronVarManager::kZv] = particle->Zv();
246
247 values[AliDielectronVarManager::kOneOverPt] = particle->OneOverPt();
248 values[AliDielectronVarManager::kPhi] = particle->Phi();
249 values[AliDielectronVarManager::kTheta] = particle->Theta();
250 values[AliDielectronVarManager::kEta] = particle->Eta();
251 values[AliDielectronVarManager::kY] = particle->Y();
8df8e382 252
b2a297fa 253 values[AliDielectronVarManager::kE] = particle->E();
254 values[AliDielectronVarManager::kM] = particle->M();
255 values[AliDielectronVarManager::kCharge] = particle->Charge();
2a14a7b1 256
257 values[AliDielectronVarManager::kPdgCode] = particle->PdgCode();
258
6551594b 259 if ( fgEvent ) AliDielectronVarManager::Fill(fgEvent, values);
b2a297fa 260}
261
262inline void AliDielectronVarManager::FillVarESDtrack(const AliESDtrack *particle, Double_t * const values)
263{
264 //
265 // Fill track information available for histogramming into an array
266 //
267
268 // Fill common AliVParticle interface information
269 FillVarVParticle(particle, values);
270
8df8e382 271 Double_t pidProbs[AliPID::kSPECIES];
b2a297fa 272 // Fill AliESDtrack interface specific information
164bfb53 273 Double_t tpcNcls=particle->GetTPCNcls();
b2a297fa 274 values[AliDielectronVarManager::kNclsITS] = particle->GetNcls(0); // TODO: get rid of the plain numbers
61d106d3 275 values[AliDielectronVarManager::kNclsTPC] = tpcNcls; // TODO: get rid of the plain numbers
ffbede40 276 values[AliDielectronVarManager::kNclsTPCiter1] = particle->GetTPCNclsIter1(); // TODO: get rid of the plain numbers
b2a297fa 277 values[AliDielectronVarManager::kNFclsTPC] = particle->GetTPCNclsF();
45b2b1b8 278 values[AliDielectronVarManager::kNFclsTPCr] = particle->GetTPCClusterInfo(2,1);
b2a297fa 279 values[AliDielectronVarManager::kTPCsignalN] = particle->GetTPCsignalN();
280 values[AliDielectronVarManager::kNclsTRD] = particle->GetNcls(2); // TODO: get rid of the plain numbers
281 values[AliDielectronVarManager::kTRDntracklets] = particle->GetTRDntracklets(); // TODO: GetTRDtracklets/GetTRDntracklets?
282 values[AliDielectronVarManager::kTRDpidQuality] = particle->GetTRDpidQuality();
61d106d3 283 values[AliDielectronVarManager::kTrackStatus] = (Double_t)particle->GetStatus();
284
285
286 values[AliDielectronVarManager::kTPCchi2Cl] = -1;
287 if (tpcNcls>0) values[AliDielectronVarManager::kTPCchi2Cl] = particle->GetTPCchi2() / tpcNcls;
8df8e382 288 //TRD pidProbs
289 particle->GetTRDpid(pidProbs);
290 values[AliDielectronVarManager::kTRDprobEle] = pidProbs[AliPID::kElectron];
291 values[AliDielectronVarManager::kTRDprobPio] = pidProbs[AliPID::kPion];
ffbede40 292
293 values[AliDielectronVarManager::kKinkIndex0] = particle->GetKinkIndex(0);
8df8e382 294
b2a297fa 295 Float_t impactParXY, impactParZ;
296 particle->GetImpactParameters(impactParXY, impactParZ);
297 values[AliDielectronVarManager::kImpactParXY] = impactParXY;
298 values[AliDielectronVarManager::kImpactParZ] = impactParZ;
299
8df8e382 300
301 values[AliDielectronVarManager::kPdgCode]=0;
302 values[AliDielectronVarManager::kPdgCodeMother]=0;
303
304 values[AliDielectronVarManager::kNumberOfDaughters]=-999;
305
306 AliDielectronMC *mc=AliDielectronMC::Instance();
307
308 if (mc->HasMC()){
309 if (mc->GetMCTrack(particle))
310 values[AliDielectronVarManager::kPdgCode]=
311 mc->GetMCTrack(particle)->PdgCode();
312
313 Int_t pdgMother=mc->GetMotherPDG(particle);
314 if (pdgMother!=-999)
315 values[AliDielectronVarManager::kPdgCodeMother]=pdgMother;
316
317 values[AliDielectronVarManager::kNumberOfDaughters]=mc->NumberOfDaughters(particle);
318 } //if(mc->HasMC())
319
320
321
322 values[AliDielectronVarManager::kITSsignal] = particle->GetITSsignal();
323
324 Double_t itsdEdx[4];
325 particle->GetITSdEdxSamples(itsdEdx);
326
327 values[AliDielectronVarManager::kITSsignalSSD1] = itsdEdx[0];
328 values[AliDielectronVarManager::kITSsignalSSD2] = itsdEdx[1];
329 values[AliDielectronVarManager::kITSsignalSDD1] = itsdEdx[2];
330 values[AliDielectronVarManager::kITSsignalSDD2] = itsdEdx[3];
3505bfad 331 values[AliDielectronVarManager::kITSclusterMap] = particle->GetITSClusterMap();
332
b2a297fa 333 values[AliDielectronVarManager::kTrackLength] = particle->GetIntegratedLength();
b2a297fa 334 //dEdx information
335 Double_t mom = particle->GetP();
336 const AliExternalTrackParam *in=particle->GetInnerParam();
337 if (in) mom = in->GetP();
338 values[AliDielectronVarManager::kPIn]=mom;
339 values[AliDielectronVarManager::kTPCsignal]=particle->GetTPCsignal();
6551594b 340 // nsigma to Electron band
341 // TODO: for the moment we set the bethe bloch parameters manually
342 // this should be changed in future!
48609e3d 343
2a14a7b1 344 values[AliDielectronVarManager::kTPCnSigmaEle]=fgESDpid->NumberOfSigmasTPC(particle,AliPID::kElectron)-AliDielectronPID::GetCorrVal();
572b0139 345 values[AliDielectronVarManager::kTPCnSigmaPio]=fgESDpid->NumberOfSigmasTPC(particle,AliPID::kPion);
346 values[AliDielectronVarManager::kTPCnSigmaMuo]=fgESDpid->NumberOfSigmasTPC(particle,AliPID::kMuon);
347 values[AliDielectronVarManager::kTPCnSigmaKao]=fgESDpid->NumberOfSigmasTPC(particle,AliPID::kKaon);
348 values[AliDielectronVarManager::kTPCnSigmaPro]=fgESDpid->NumberOfSigmasTPC(particle,AliPID::kProton);
349
9143d69f 350 values[AliDielectronVarManager::kITSnSigmaEle]=fgESDpid->NumberOfSigmasITS(particle,AliPID::kElectron);
351 values[AliDielectronVarManager::kITSnSigmaPio]=fgESDpid->NumberOfSigmasITS(particle,AliPID::kPion);
352 values[AliDielectronVarManager::kITSnSigmaMuo]=fgESDpid->NumberOfSigmasITS(particle,AliPID::kMuon);
353 values[AliDielectronVarManager::kITSnSigmaKao]=fgESDpid->NumberOfSigmasITS(particle,AliPID::kKaon);
354 values[AliDielectronVarManager::kITSnSigmaPro]=fgESDpid->NumberOfSigmasITS(particle,AliPID::kProton);
355
572b0139 356 Double_t t0=fgESDpid->GetTOFResponse().GetTimeZero();
8df8e382 357 values[AliDielectronVarManager::kTOFnSigmaEle]=fgESDpid->NumberOfSigmasTOF(particle,AliPID::kElectron,t0);
572b0139 358 values[AliDielectronVarManager::kTOFnSigmaPio]=fgESDpid->NumberOfSigmasTOF(particle,AliPID::kPion,t0);
359 values[AliDielectronVarManager::kTOFnSigmaMuo]=fgESDpid->NumberOfSigmasTOF(particle,AliPID::kMuon,t0);
360 values[AliDielectronVarManager::kTOFnSigmaKao]=fgESDpid->NumberOfSigmasTOF(particle,AliPID::kKaon,t0);
361 values[AliDielectronVarManager::kTOFnSigmaPro]=fgESDpid->NumberOfSigmasTOF(particle,AliPID::kProton,t0);
b2a297fa 362}
363
364inline void AliDielectronVarManager::FillVarAODTrack(const AliAODTrack *particle, Double_t * const values)
365{
366 //
367 // Fill track information available for histogramming into an array
368 //
369
370 // Fill common AliVParticle interface information
371 FillVarVParticle(particle, values);
572b0139 372
373 // Reset AliESDtrack interface specific information
374 values[AliDielectronVarManager::kNclsITS] = 0;
164bfb53 375 values[AliDielectronVarManager::kNclsTPC] = particle->GetTPCNcls();
554e40f8 376 values[AliDielectronVarManager::kNclsTPCiter1] = particle->GetTPCNcls(); // not really available in AOD
572b0139 377 values[AliDielectronVarManager::kNFclsTPC] = 0;
45b2b1b8 378 values[AliDielectronVarManager::kNFclsTPCr] = 0;
572b0139 379 values[AliDielectronVarManager::kNclsTRD] = 0;
380 values[AliDielectronVarManager::kTRDntracklets] = 0;
381 values[AliDielectronVarManager::kTRDpidQuality] = 0;
61d106d3 382
383 values[AliDielectronVarManager::kTPCchi2Cl] = -1;
384 values[AliDielectronVarManager::kTrackStatus] = (Double_t)particle->GetStatus();
385
8df8e382 386 //TRD pidProbs
387 //TODO: set correctly
388 values[AliDielectronVarManager::kTRDprobEle] = 0;
389 values[AliDielectronVarManager::kTRDprobPio] = 0;
390
572b0139 391 //TODO: This is only an approximation!!!
2a14a7b1 392 values[AliDielectronVarManager::kTPCsignalN] = 0;
572b0139 393
2a14a7b1 394 // Fill AliAODTrack interface information
395 //
396 Double_t d0z0[2];
397 GetDCA(particle, d0z0);
398 values[AliDielectronVarManager::kImpactParXY] = d0z0[0];
399 values[AliDielectronVarManager::kImpactParZ] = d0z0[1];
572b0139 400
401 values[AliDielectronVarManager::kPIn]=0;
402 values[AliDielectronVarManager::kTPCsignal]=0;
403
404 values[AliDielectronVarManager::kTPCnSigmaEle]=0;
405 values[AliDielectronVarManager::kTPCnSigmaPio]=0;
406 values[AliDielectronVarManager::kTPCnSigmaMuo]=0;
407 values[AliDielectronVarManager::kTPCnSigmaKao]=0;
408 values[AliDielectronVarManager::kTPCnSigmaPro]=0;
b2a297fa 409
3505bfad 410 values[AliDielectronVarManager::kITSclusterMap] = particle->GetITSClusterMap();
572b0139 411
412 AliAODPid *pid=particle->GetDetPid();
413 if (pid){
414 Double_t mom =pid->GetTPCmomentum();
2a14a7b1 415 values[AliDielectronVarManager::kTPCsignalN] = pid->GetTPCsignalN();
416 Double_t tpcNsigmaEle=fgAODpidUtil->NumberOfSigmasTPC(particle,AliPID::kElectron);
417 Double_t tpcNsigmaPio=fgAODpidUtil->NumberOfSigmasTPC(particle,AliPID::kPion);
418 Double_t tpcNsigmaMuo=fgAODpidUtil->NumberOfSigmasTPC(particle,AliPID::kMuon);
419 Double_t tpcNsigmaKao=fgAODpidUtil->NumberOfSigmasTPC(particle,AliPID::kKaon);
420 Double_t tpcNsigmaPro=fgAODpidUtil->NumberOfSigmasTPC(particle,AliPID::kProton);
572b0139 421
164bfb53 422 values[AliDielectronVarManager::kPIn]=mom;
572b0139 423 values[AliDielectronVarManager::kTPCsignal]=pid->GetTPCsignal();
424
425 values[AliDielectronVarManager::kTPCnSigmaEle]=tpcNsigmaEle;
426 values[AliDielectronVarManager::kTPCnSigmaPio]=tpcNsigmaPio;
427 values[AliDielectronVarManager::kTPCnSigmaMuo]=tpcNsigmaMuo;
428 values[AliDielectronVarManager::kTPCnSigmaKao]=tpcNsigmaKao;
429 values[AliDielectronVarManager::kTPCnSigmaPro]=tpcNsigmaPro;
430
431 values[AliDielectronVarManager::kTRDntracklets] = 0;
432 values[AliDielectronVarManager::kTRDpidQuality] = 0;
433
434 }
b2a297fa 435}
436
437inline void AliDielectronVarManager::FillVarMCParticle(const AliMCParticle *particle, Double_t * const values)
438{
439 //
440 // Fill track information available for histogramming into an array
441 //
442
554e40f8 443 values[AliDielectronVarManager::kNclsITS] = 0;
444 values[AliDielectronVarManager::kNclsTPC] = 0;
445 values[AliDielectronVarManager::kNclsTPCiter1] = 0;
446 values[AliDielectronVarManager::kNFclsTPC] = 0;
45b2b1b8 447 values[AliDielectronVarManager::kNFclsTPCr] = 0;
554e40f8 448 values[AliDielectronVarManager::kNclsTRD] = 0;
449 values[AliDielectronVarManager::kTRDntracklets] = 0;
450 values[AliDielectronVarManager::kTRDpidQuality] = 0;
451 values[AliDielectronVarManager::kTPCchi2Cl] = 0;
452 values[AliDielectronVarManager::kTrackStatus] = 0;
453 values[AliDielectronVarManager::kTRDprobEle] = 0;
454 values[AliDielectronVarManager::kTRDprobPio] = 0;
455 values[AliDielectronVarManager::kTPCsignalN] = 0;
456 values[AliDielectronVarManager::kImpactParXY] = 0;
457 values[AliDielectronVarManager::kImpactParZ] = 0;
458 values[AliDielectronVarManager::kPIn] = 0;
459 values[AliDielectronVarManager::kTPCsignal] = 0;
460 values[AliDielectronVarManager::kTPCnSigmaEle] = 0;
461 values[AliDielectronVarManager::kTPCnSigmaPio] = 0;
462 values[AliDielectronVarManager::kTPCnSigmaMuo] = 0;
463 values[AliDielectronVarManager::kTPCnSigmaKao] = 0;
464 values[AliDielectronVarManager::kTPCnSigmaPro] = 0;
465 values[AliDielectronVarManager::kITSclusterMap] = 0;
466
467 values[AliDielectronVarManager::kPdgCode] = 0;
468 values[AliDielectronVarManager::kPdgCodeMother] = 0;
469
b2a297fa 470 // Fill common AliVParticle interface information
471 FillVarVParticle(particle, values);
8df8e382 472
473 AliDielectronMC *mc=AliDielectronMC::Instance();
474
b2a297fa 475 // Fill AliMCParticle interface specific information
476 values[AliDielectronVarManager::kPdgCode] = particle->PdgCode();
8df8e382 477
478 AliMCParticle *mother = mc->GetMCTrackMother(particle);
479 if (mother) values[AliDielectronVarManager::kPdgCodeMother] = mother->PdgCode();
480
481
482 values[AliDielectronVarManager::kNumberOfDaughters]=mc->NumberOfDaughters(particle);
b2a297fa 483}
484
485inline void AliDielectronVarManager::FillVarAODMCParticle(const AliAODMCParticle *particle, Double_t * const values)
486{
487 //
488 // Fill track information available for histogramming into an array
489 //
490
554e40f8 491 values[AliDielectronVarManager::kNclsITS] = 0;
492 values[AliDielectronVarManager::kNclsTPC] = 0;
493 values[AliDielectronVarManager::kNclsTPCiter1] = 0;
494 values[AliDielectronVarManager::kNFclsTPC] = 0;
495 values[AliDielectronVarManager::kNclsTRD] = 0;
496 values[AliDielectronVarManager::kTRDntracklets] = 0;
497 values[AliDielectronVarManager::kTRDpidQuality] = 0;
498 values[AliDielectronVarManager::kTPCchi2Cl] = 0;
499 values[AliDielectronVarManager::kTrackStatus] = 0;
500 values[AliDielectronVarManager::kTRDprobEle] = 0;
501 values[AliDielectronVarManager::kTRDprobPio] = 0;
502 values[AliDielectronVarManager::kTPCsignalN] = 0;
503 values[AliDielectronVarManager::kImpactParXY] = 0;
504 values[AliDielectronVarManager::kImpactParZ] = 0;
505 values[AliDielectronVarManager::kPIn] = 0;
506 values[AliDielectronVarManager::kTPCsignal] = 0;
507 values[AliDielectronVarManager::kTPCnSigmaEle] = 0;
508 values[AliDielectronVarManager::kTPCnSigmaPio] = 0;
509 values[AliDielectronVarManager::kTPCnSigmaMuo] = 0;
510 values[AliDielectronVarManager::kTPCnSigmaKao] = 0;
511 values[AliDielectronVarManager::kTPCnSigmaPro] = 0;
512 values[AliDielectronVarManager::kITSclusterMap] = 0;
513
514 values[AliDielectronVarManager::kPdgCode] = 0;
515 values[AliDielectronVarManager::kPdgCodeMother] = 0;
516
b2a297fa 517 // Fill common AliVParticle interface information
518 FillVarVParticle(particle, values);
554e40f8 519
8df8e382 520 AliDielectronMC *mc=AliDielectronMC::Instance();
521
522
b2a297fa 523 // Fill AliAODMCParticle interface specific information
8df8e382 524 values[AliDielectronVarManager::kPdgCode] = particle->PdgCode();
525
526 AliVParticle *mother = mc->GetMCTrackMother(particle);
527 if (mother) values[AliDielectronVarManager::kPdgCodeMother] = mother->PdgCode();
528
529 values[AliDielectronVarManager::kNumberOfDaughters]=mc->NumberOfDaughters(particle);
b2a297fa 530}
531
532inline void AliDielectronVarManager::FillVarDielectronPair(const AliDielectronPair *pair, Double_t * const values)
533{
534 //
535 // Fill pair information available for histogramming into an array
536 //
2a14a7b1 537
538 values[AliDielectronVarManager::kPdgCode]=0;
539 values[AliDielectronVarManager::kPdgCodeMother]=0;
540
b2a297fa 541 // Fill common AliVParticle interface information
542 FillVarVParticle(pair, values);
543
544 // Fill AliDielectronPair specific information
545 const AliKFParticle &kfPair = pair->GetKFParticle();
61d106d3 546
547 Double_t thetaHE=0;
548 Double_t phiHE=0;
549 Double_t thetaCS=0;
550 Double_t phiCS=0;
551
552 pair->GetThetaPhiCM(thetaHE,phiHE,thetaCS,phiCS);
553
b2a297fa 554 values[AliDielectronVarManager::kChi2NDF] = kfPair.GetChi2()/kfPair.GetNDF();
555 values[AliDielectronVarManager::kDecayLength] = kfPair.GetDecayLength();
556 values[AliDielectronVarManager::kR] = kfPair.GetR();
557 values[AliDielectronVarManager::kOpeningAngle] = pair->OpeningAngle();
61d106d3 558 values[AliDielectronVarManager::kThetaHE] = thetaHE;
559 values[AliDielectronVarManager::kPhiHE] = phiHE;
560 values[AliDielectronVarManager::kThetaCS] = thetaCS;
561 values[AliDielectronVarManager::kPhiCS] = phiCS;
572b0139 562 values[AliDielectronVarManager::kLegDist] = pair->DistanceDaughters();
563 values[AliDielectronVarManager::kLegDistXY] = pair->DistanceDaughtersXY();
61d106d3 564 values[AliDielectronVarManager::kDeltaEta] = pair->DeltaEta();
565 values[AliDielectronVarManager::kDeltaPhi] = pair->DeltaPhi();
8df8e382 566 values[AliDielectronVarManager::kMerr] = kfPair.GetErrMass()>1e-30&&kfPair.GetMass()>1e-30?kfPair.GetErrMass()/kfPair.GetMass():1000000;
b2a297fa 567 values[AliDielectronVarManager::kPairType] = pair->GetType();
8df8e382 568
569
570
571 AliDielectronMC *mc=AliDielectronMC::Instance();
572
573 if (mc->HasMC()){
574 Bool_t samemother = mc->HaveSameMother(pair);
575 values[AliDielectronVarManager::kHaveSameMother] = samemother ;
576 }//if (mc->HasMC())
577
578
b2a297fa 579}
580
6551594b 581
582inline void AliDielectronVarManager::FillVarVEvent(const AliVEvent *event, Double_t * const values)
583{
584 //
585 // Fill event information available for histogramming into an array
586 //
587 const AliVVertex *primVtx = event->GetPrimaryVertex();
8df8e382 588
589 values[AliDielectronVarManager::kXvPrim] = 0;
590 values[AliDielectronVarManager::kYvPrim] = 0;
591 values[AliDielectronVarManager::kZvPrim] = 0;
592 values[AliDielectronVarManager::kChi2NDF] = 0;
593
594 values[AliDielectronVarManager::kNTrk] = 0;
595 values[AliDielectronVarManager::kNevents] = 0; //always fill bin 0;
596
597 if (!primVtx) return;
598
6551594b 599 values[AliDielectronVarManager::kXvPrim] = primVtx->GetX();
600 values[AliDielectronVarManager::kYvPrim] = primVtx->GetY();
601 values[AliDielectronVarManager::kZvPrim] = primVtx->GetZ();
602 values[AliDielectronVarManager::kChi2NDF] = primVtx->GetChi2perNDF();
603
604 values[AliDielectronVarManager::kNTrk] = event->GetNumberOfTracks();
6551594b 605}
606
607inline void AliDielectronVarManager::FillVarESDEvent(const AliESDEvent *event, Double_t * const values)
608{
609 //
610 // Fill event information available for histogramming into an array
611 //
612
613 // Fill common AliVEvent interface information
614 FillVarVEvent(event, values);
ffbede40 615
616 Double_t centralityF=-1;
4649c75b 617 AliCentrality *esdCentrality = const_cast<AliESDEvent*>(event)->GetCentrality();
ffbede40 618 if (esdCentrality) centralityF = esdCentrality->GetCentralityPercentile("V0M");
619
6551594b 620 // Fill AliESDEvent interface specific information
621 const AliESDVertex *primVtx = event->GetPrimaryVertex();
622 values[AliDielectronVarManager::kXRes] = primVtx->GetXRes();
623 values[AliDielectronVarManager::kYRes] = primVtx->GetYRes();
624 values[AliDielectronVarManager::kZRes] = primVtx->GetZRes();
ffbede40 625 values[AliDielectronVarManager::kCentrality] = centralityF;
6551594b 626}
627
628inline void AliDielectronVarManager::FillVarAODEvent(const AliAODEvent *event, Double_t * const values)
629{
630 //
631 // Fill event information available for histogramming into an array
632 //
633
634 // Fill common AliVEvent interface information
635 FillVarVEvent(event, values);
636
637 // Fill AliAODEvent interface specific information
638}
639
640inline void AliDielectronVarManager::FillVarMCEvent(const AliMCEvent *event, Double_t * const values)
641{
642 //
643 // Fill event information available for histogramming into an array
644 //
645
646 // Fill common AliVEvent interface information
647 FillVarVEvent(event, values);
648
649 // Fill AliMCEvent interface specific information
650}
651
652inline void AliDielectronVarManager::InitESDpid(Int_t type)
653{
654 //
655 // initialize PID parameters
656 // type=0 is simulation
657 // type=1 is data
658
572b0139 659 if (!fgESDpid) fgESDpid=new AliESDpid;
6551594b 660 Double_t alephParameters[5];
661 // simulation
662 alephParameters[0] = 2.15898e+00/50.;
663 alephParameters[1] = 1.75295e+01;
664 alephParameters[2] = 3.40030e-09;
665 alephParameters[3] = 1.96178e+00;
666 alephParameters[4] = 3.91720e+00;
8df8e382 667 fgESDpid->GetTOFResponse().SetTimeResolution(80.);
6551594b 668
669 // data
83e37742 670 if (type==1){
671 alephParameters[0] = 0.0283086/0.97;
6551594b 672 alephParameters[1] = 2.63394e+01;
673 alephParameters[2] = 5.04114e-11;
674 alephParameters[3] = 2.12543e+00;
675 alephParameters[4] = 4.88663e+00;
8df8e382 676 fgESDpid->GetTOFResponse().SetTimeResolution(130.);
83e37742 677 fgESDpid->GetTPCResponse().SetMip(50.);
6551594b 678 }
679
680 fgESDpid->GetTPCResponse().SetBetheBlochParameters(
681 alephParameters[0],alephParameters[1],alephParameters[2],
682 alephParameters[3],alephParameters[4]);
683
8df8e382 684 fgESDpid->GetTPCResponse().SetSigma(3.79301e-03, 2.21280e+04);
6551594b 685}
686
2a14a7b1 687inline void AliDielectronVarManager::InitAODpidUtil(Int_t type)
688{
689 if (!fgAODpidUtil) fgAODpidUtil=new AliAODpidUtil;
690 Double_t alephParameters[5];
691 // simulation
692 alephParameters[0] = 2.15898e+00/50.;
693 alephParameters[1] = 1.75295e+01;
694 alephParameters[2] = 3.40030e-09;
695 alephParameters[3] = 1.96178e+00;
696 alephParameters[4] = 3.91720e+00;
697 fgAODpidUtil->GetTOFResponse().SetTimeResolution(80.);
698
699 // data
700 if (type==1){
701 alephParameters[0] = 0.0283086/0.97;
702 alephParameters[1] = 2.63394e+01;
703 alephParameters[2] = 5.04114e-11;
704 alephParameters[3] = 2.12543e+00;
705 alephParameters[4] = 4.88663e+00;
706 fgAODpidUtil->GetTOFResponse().SetTimeResolution(130.);
707 fgAODpidUtil->GetTPCResponse().SetMip(50.);
708 }
709
710 fgAODpidUtil->GetTPCResponse().SetBetheBlochParameters(
711 alephParameters[0],alephParameters[1],alephParameters[2],
712 alephParameters[3],alephParameters[4]);
713
714 fgAODpidUtil->GetTPCResponse().SetSigma(3.79301e-03, 2.21280e+04);
715}
716
572b0139 717
718inline void AliDielectronVarManager::SetEvent(AliVEvent * const ev)
719{
720
721 fgEvent = ev;
722 if (fgKFVertex) delete fgKFVertex;
723 fgKFVertex=0x0;
8df8e382 724 if (ev && ev->GetPrimaryVertex()) fgKFVertex=new AliKFVertex(*ev->GetPrimaryVertex());
572b0139 725}
2a14a7b1 726
727
728inline Bool_t AliDielectronVarManager::GetDCA(const AliAODTrack *track, Double_t d0z0[2])
729{
730 if(track->TestBit(AliAODTrack::kIsDCA)){
731 d0z0[0]=track->DCA();
732 d0z0[1]=track->ZAtDCA();
733 return kTRUE;
734 }
735
736 Double_t covd0z0[3];
737 AliAODTrack copy(*track);
738 AliAODVertex *vtx =(AliAODVertex*)(fgEvent->GetPrimaryVertex());
739 Double_t fBzkG = fgEvent->GetMagneticField(); // z componenent of field in kG
740 Bool_t ok = copy.PropagateToDCA(vtx,fBzkG,kVeryBig,d0z0,covd0z0);
741 if(!ok){
742 d0z0[0]=-999.;
743 d0z0[1]=-999.;
744 }
745 return ok;
746}
747
b2a297fa 748/*
749inline void AliDielectronVarManager::FillValues(const TParticle *particle, Double_t *values)
750{
751 //
752 // Fill track information available for histogramming into an array
753 //
754
755 // Fill TParticle interface information
756 values[AliDielectronVarManager::kPx] = particle->Px();
757 values[AliDielectronVarManager::kPy] = particle->Py();
758 values[AliDielectronVarManager::kPz] = particle->Pz();
759 values[AliDielectronVarManager::kPt] = particle->Pt();
760 values[AliDielectronVarManager::kP] = particle->P();
761
762 values[AliDielectronVarManager::kXv] = particle->Vx();
763 values[AliDielectronVarManager::kYv] = particle->Vy();
764 values[AliDielectronVarManager::kZv] = particle->Vz();
765
766 values[AliDielectronVarManager::kOneOverPt] = 1./particle->Pt();
767 values[AliDielectronVarManager::kPhi] = particle->Phi();
768 values[AliDielectronVarManager::kTheta] =
769 values[AliDielectronVarManager::kEta] = particle->Eta();
770 values[AliDielectronVarManager::kY] =
771
772 values[AliDielectronVarManager::kE] = particle->Energy();
773 values[AliDielectronVarManager::kM] = particle->GetMass();
774
775 values[AliDielectronVarManager::kCharge] = particle->GetPDG()->Charge()/3; // uggly
776
777}*/
778
779#endif