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43a9a462 | 1 | /* $Id$ */ |
2 | ||
3 | #include "AliMultiplicityMCSelector.h" | |
4 | ||
5 | #include <TStyle.h> | |
6 | #include <TSystem.h> | |
7 | #include <TCanvas.h> | |
8 | #include <TVector3.h> | |
9 | #include <TChain.h> | |
10 | #include <TFile.h> | |
43a9a462 | 11 | #include <TH2F.h> |
0a173978 | 12 | #include <TH3F.h> |
43a9a462 | 13 | #include <TParticle.h> |
447c325d | 14 | #include <TRandom.h> |
15 | #include <TNtuple.h> | |
a7904bb7 | 16 | #include <TObjString.h> |
17 | #include <TF1.h> | |
43a9a462 | 18 | |
19 | #include <AliLog.h> | |
20 | #include <AliESD.h> | |
21 | #include <AliStack.h> | |
0a173978 | 22 | #include <AliHeader.h> |
23 | #include <AliGenEventHeader.h> | |
24 | #include <AliMultiplicity.h> | |
43a9a462 | 25 | |
26 | #include "esdTrackCuts/AliESDtrackCuts.h" | |
27 | #include "AliPWG0Helper.h" | |
447c325d | 28 | #include "AliPWG0depHelper.h" |
0a173978 | 29 | #include "dNdEta/AliMultiplicityCorrection.h" |
447c325d | 30 | #include "AliCorrection.h" |
31 | #include "AliCorrectionMatrix3D.h" | |
43a9a462 | 32 | |
6d81c2de | 33 | #define TPCMEASUREMENT |
34 | //#define ITSMEASUREMENT | |
cfc19dd5 | 35 | |
43a9a462 | 36 | ClassImp(AliMultiplicityMCSelector) |
37 | ||
38 | AliMultiplicityMCSelector::AliMultiplicityMCSelector() : | |
39 | AliSelectorRL(), | |
0a173978 | 40 | fMultiplicity(0), |
447c325d | 41 | fEsdTrackCuts(0), |
42 | fSystSkipParticles(kFALSE), | |
43 | fSelectProcessType(0), | |
a7904bb7 | 44 | fParticleSpecies(0), |
45 | fPtSpectrum(0) | |
43a9a462 | 46 | { |
47 | // | |
48 | // Constructor. Initialization of pointers | |
49 | // | |
447c325d | 50 | |
51 | for (Int_t i = 0; i<4; i++) | |
52 | fParticleCorrection[i] = 0; | |
43a9a462 | 53 | } |
54 | ||
55 | AliMultiplicityMCSelector::~AliMultiplicityMCSelector() | |
56 | { | |
57 | // | |
58 | // Destructor | |
59 | // | |
60 | ||
61 | // histograms are in the output list and deleted when the output | |
62 | // list is deleted by the TSelector dtor | |
63 | } | |
64 | ||
65 | void AliMultiplicityMCSelector::Begin(TTree* tree) | |
66 | { | |
67 | // Begin function | |
68 | ||
69 | AliSelectorRL::Begin(tree); | |
70 | ||
71 | ReadUserObjects(tree); | |
72 | } | |
73 | ||
74 | void AliMultiplicityMCSelector::ReadUserObjects(TTree* tree) | |
75 | { | |
76 | // read the user objects, called from slavebegin and begin | |
77 | ||
78 | if (!fEsdTrackCuts && fInput) | |
79 | fEsdTrackCuts = dynamic_cast<AliESDtrackCuts*> (fInput->FindObject("AliESDtrackCuts")); | |
80 | ||
81 | if (!fEsdTrackCuts && tree) | |
82 | fEsdTrackCuts = dynamic_cast<AliESDtrackCuts*> (tree->GetUserInfo()->FindObject("AliESDtrackCuts")); | |
83 | ||
84 | if (!fEsdTrackCuts) | |
85 | AliDebug(AliLog::kError, "ERROR: Could not read EsdTrackCuts from input list."); | |
6d81c2de | 86 | |
87 | if (!fPtSpectrum && fInput) | |
88 | fPtSpectrum = dynamic_cast<TH1*> (fInput->FindObject("pt-spectrum")); | |
89 | ||
90 | if (!fPtSpectrum && tree) | |
91 | fPtSpectrum = dynamic_cast<TH1*> (tree->GetUserInfo()->FindObject("pt-spectrum")); | |
43a9a462 | 92 | } |
93 | ||
94 | void AliMultiplicityMCSelector::SlaveBegin(TTree* tree) | |
95 | { | |
96 | // The SlaveBegin() function is called after the Begin() function. | |
97 | // When running with PROOF SlaveBegin() is called on each slave server. | |
98 | // The tree argument is deprecated (on PROOF 0 is passed). | |
99 | ||
100 | AliSelector::SlaveBegin(tree); | |
101 | ||
102 | ReadUserObjects(tree); | |
103 | ||
0a173978 | 104 | fMultiplicity = new AliMultiplicityCorrection("Multiplicity", "Multiplicity"); |
447c325d | 105 | |
106 | TString option(GetOption()); | |
107 | if (option.Contains("skip-particles")) | |
108 | { | |
109 | fSystSkipParticles = kTRUE; | |
110 | AliInfo("WARNING: Systematic study enabled. Particles will be skipped."); | |
111 | } | |
112 | ||
113 | if (option.Contains("particle-efficiency")) | |
114 | for (Int_t i = 0; i<4; i++) | |
115 | fParticleCorrection[i] = new AliCorrection(Form("correction_%d", i), Form("correction_%d", i)); | |
116 | ||
117 | if (option.Contains("only-process-type-nd")) | |
118 | fSelectProcessType = 1; | |
119 | ||
120 | if (option.Contains("only-process-type-sd")) | |
121 | fSelectProcessType = 2; | |
122 | ||
123 | if (option.Contains("only-process-type-dd")) | |
124 | fSelectProcessType = 3; | |
125 | ||
126 | if (fSelectProcessType != 0) | |
127 | AliInfo(Form("WARNING: Systematic study enabled. Only considering process type %d", fSelectProcessType)); | |
128 | ||
a7904bb7 | 129 | if (option.Contains("pt-spectrum-hist")) |
130 | { | |
131 | TFile* file = TFile::Open("ptspectrum_fit.root"); | |
132 | if (file) | |
133 | { | |
134 | TString subStr(option(option.Index("pt-spectrum")+17, 3)); | |
135 | TString histName(Form("ptspectrum_%s", subStr.Data())); | |
136 | AliInfo(Form("Pt-Spectrum modification. Using %s.", histName.Data())); | |
137 | fPtSpectrum = (TH1*) file->Get(histName); | |
138 | if (!fPtSpectrum) | |
139 | AliError("Histogram not found"); | |
140 | } | |
141 | else | |
142 | AliError("Could not open ptspectrum_fit.root. Pt Spectrum study could not be enabled."); | |
143 | ||
144 | if (fPtSpectrum) | |
145 | AliInfo("WARNING: Systematic study enabled. Pt spectrum will be modified"); | |
146 | } | |
147 | ||
148 | if (option.Contains("pt-spectrum-func")) | |
149 | { | |
6d81c2de | 150 | if (fPtSpectrum) |
151 | { | |
152 | Printf("Using function from input list for systematic p_t study"); | |
153 | } | |
154 | else | |
155 | { | |
156 | fPtSpectrum = new TH1F("fPtSpectrum", "fPtSpectrum", 1, 0, 100); | |
157 | fPtSpectrum->SetBinContent(1, 1); | |
158 | } | |
a7904bb7 | 159 | |
160 | if (fPtSpectrum) | |
161 | AliInfo("WARNING: Systematic study enabled. Pt spectrum will be modified"); | |
162 | } | |
163 | ||
447c325d | 164 | if (option.Contains("particle-species")) |
a7904bb7 | 165 | fParticleSpecies = new TNtuple("fParticleSpecies", "fParticleSpecies", "vtx:Pi_True:K_True:p_True:o_True:Pi_Rec:K_Rec:p_Rec:o_Rec:nolabel:doublePrim:doubleCount"); |
6d81c2de | 166 | |
167 | // TODO set seed for random generator | |
0a173978 | 168 | } |
169 | ||
170 | void AliMultiplicityMCSelector::Init(TTree* tree) | |
171 | { | |
172 | // read the user objects | |
173 | ||
174 | AliSelectorRL::Init(tree); | |
175 | ||
b477f4f2 | 176 | // enable only the needed branches |
177 | if (tree) | |
0a173978 | 178 | { |
179 | tree->SetBranchStatus("*", 0); | |
180 | tree->SetBranchStatus("fTriggerMask", 1); | |
181 | tree->SetBranchStatus("fSPDVertex*", 1); | |
dd701109 | 182 | |
183 | #ifdef ITSMEASUREMENT | |
184 | tree->SetBranchStatus("fSPDMult*", 1); | |
185 | #endif | |
43a9a462 | 186 | |
cfc19dd5 | 187 | #ifdef TPCMEASUREMENT |
188 | AliESDtrackCuts::EnableNeededBranches(tree); | |
6d81c2de | 189 | tree->SetBranchStatus("fTracks.fLabel", 1); |
cfc19dd5 | 190 | #endif |
a7904bb7 | 191 | |
192 | tree->SetCacheSize(0); | |
b477f4f2 | 193 | } |
43a9a462 | 194 | } |
195 | ||
196 | Bool_t AliMultiplicityMCSelector::Process(Long64_t entry) | |
197 | { | |
198 | // The Process() function is called for each entry in the tree (or possibly | |
199 | // keyed object in the case of PROOF) to be processed. The entry argument | |
200 | // specifies which entry in the currently loaded tree is to be processed. | |
201 | // It can be passed to either TTree::GetEntry() or TBranch::GetEntry() | |
202 | // to read either all or the required parts of the data. When processing | |
203 | // keyed objects with PROOF, the object is already loaded and is available | |
204 | // via the fObject pointer. | |
205 | // | |
206 | // This function should contain the "body" of the analysis. It can contain | |
207 | // simple or elaborate selection criteria, run algorithms on the data | |
208 | // of the event and typically fill histograms. | |
209 | ||
210 | // WARNING when a selector is used with a TChain, you must use | |
211 | // the pointer to the current TTree to call GetEntry(entry). | |
212 | // The entry is always the local entry number in the current tree. | |
213 | // Assuming that fTree is the pointer to the TChain being processed, | |
214 | // use fTree->GetTree()->GetEntry(entry). | |
215 | ||
216 | if (AliSelectorRL::Process(entry) == kFALSE) | |
217 | return kFALSE; | |
218 | ||
219 | // Check prerequisites | |
220 | if (!fESD) | |
221 | { | |
222 | AliDebug(AliLog::kError, "ESD branch not available"); | |
223 | return kFALSE; | |
224 | } | |
225 | ||
226 | if (!fEsdTrackCuts) | |
227 | { | |
228 | AliDebug(AliLog::kError, "fESDTrackCuts not available"); | |
229 | return kFALSE; | |
230 | } | |
231 | ||
0a173978 | 232 | AliHeader* header = GetHeader(); |
233 | if (!header) | |
234 | { | |
235 | AliDebug(AliLog::kError, "Header not available"); | |
236 | return kFALSE; | |
237 | } | |
238 | ||
43a9a462 | 239 | AliStack* stack = GetStack(); |
240 | if (!stack) | |
241 | { | |
242 | AliDebug(AliLog::kError, "Stack not available"); | |
243 | return kFALSE; | |
244 | } | |
245 | ||
447c325d | 246 | if (fSelectProcessType > 0) |
247 | { | |
248 | // getting process information; NB: this only works for Pythia | |
249 | Int_t processtype = AliPWG0depHelper::GetPythiaEventProcessType(header); | |
250 | ||
251 | Bool_t processEvent = kFALSE; | |
252 | ||
253 | // non diffractive | |
254 | if (fSelectProcessType == 1 && processtype !=92 && processtype !=93 && processtype != 94) | |
255 | processEvent = kTRUE; | |
256 | ||
257 | // single diffractive | |
258 | if (fSelectProcessType == 2 && (processtype == 92 || processtype == 93)) | |
259 | processEvent = kTRUE; | |
260 | ||
261 | // double diffractive | |
262 | if (fSelectProcessType == 3 && processtype == 94) | |
263 | processEvent = kTRUE; | |
264 | ||
265 | if (!processEvent) | |
266 | { | |
267 | AliDebug(AliLog::kDebug, Form("Skipping this event, because it is not of the requested process type (%d)", processtype)); | |
268 | return kTRUE; | |
269 | } | |
270 | } | |
271 | ||
cfc19dd5 | 272 | Bool_t eventTriggered = AliPWG0Helper::IsEventTriggered(fESD); |
447c325d | 273 | eventTriggered = kTRUE; // no generated trigger for the simulated events |
cfc19dd5 | 274 | Bool_t eventVertex = AliPWG0Helper::IsVertexReconstructed(fESD); |
43a9a462 | 275 | |
0a173978 | 276 | // get the ESD vertex |
277 | const AliESDVertex* vtxESD = fESD->GetVertex(); | |
278 | Double_t vtx[3]; | |
279 | vtxESD->GetXYZ(vtx); | |
280 | ||
281 | // get the MC vertex | |
282 | AliGenEventHeader* genHeader = header->GenEventHeader(); | |
283 | TArrayF vtxMC(3); | |
284 | genHeader->PrimaryVertex(vtxMC); | |
285 | ||
286 | // get tracklets | |
287 | const AliMultiplicity* mult = fESD->GetMultiplicity(); | |
288 | if (!mult) | |
289 | { | |
290 | AliDebug(AliLog::kError, "AliMultiplicity not available"); | |
291 | return kFALSE; | |
292 | } | |
43a9a462 | 293 | |
0a173978 | 294 | //const Float_t kPtCut = 0.3; |
43a9a462 | 295 | |
296 | // get number of tracks from MC | |
297 | // loop over mc particles | |
298 | Int_t nPrim = stack->GetNprimary(); | |
a7904bb7 | 299 | Int_t nMCPart = stack->GetNtrack(); |
0a173978 | 300 | |
301 | // tracks in different eta ranges | |
302 | Int_t nMCTracks05 = 0; | |
6d81c2de | 303 | Int_t nMCTracks09 = 0; |
0a173978 | 304 | Int_t nMCTracks15 = 0; |
305 | Int_t nMCTracks20 = 0; | |
306 | Int_t nMCTracksAll = 0; | |
307 | ||
447c325d | 308 | // tracks per particle species, in |eta| < 2 (systematic study) |
309 | Int_t nMCTracksSpecies[4]; // (pi, K, p, other) | |
310 | for (Int_t i = 0; i<4; ++i) | |
311 | nMCTracksSpecies[i] = 0; | |
6d81c2de | 312 | // eta range for nMCTracksSpecies, nESDTracksSpecies |
313 | #ifdef ITSMEASUREMENT | |
314 | const Float_t etaRange = 2.0; | |
315 | #else | |
316 | const Float_t etaRange = 0.9; | |
317 | #endif | |
447c325d | 318 | |
43a9a462 | 319 | for (Int_t iMc = 0; iMc < nPrim; ++iMc) |
320 | { | |
321 | AliDebug(AliLog::kDebug+1, Form("MC Loop: Processing particle %d.", iMc)); | |
322 | ||
323 | TParticle* particle = stack->Particle(iMc); | |
324 | ||
325 | if (!particle) | |
326 | { | |
327 | AliDebug(AliLog::kError, Form("UNEXPECTED: particle with label %d not found in stack (mc loop).", iMc)); | |
328 | continue; | |
329 | } | |
330 | ||
447c325d | 331 | Bool_t debug = kFALSE; |
332 | if (AliPWG0Helper::IsPrimaryCharged(particle, nPrim, debug) == kFALSE) | |
333 | { | |
334 | //printf("%d) DROPPED ", iMC); | |
335 | //particle->Print(); | |
43a9a462 | 336 | continue; |
447c325d | 337 | } |
338 | ||
339 | //printf("%d) OK ", iMC); | |
340 | //particle->Print(); | |
43a9a462 | 341 | |
0a173978 | 342 | //if (particle->Pt() < kPtCut) |
343 | // continue; | |
43a9a462 | 344 | |
a7904bb7 | 345 | Int_t particleWeight = 1; |
346 | ||
347 | Float_t pt = particle->Pt(); | |
348 | ||
349 | // in case of systematic study, weight according to the change of the pt spectrum | |
350 | // it cannot be just multiplied because we cannot count "half of a particle" | |
6d81c2de | 351 | // instead a random generator decides if the particle is counted twice (if value > 1) |
a7904bb7 | 352 | // or not (if value < 0) |
6d81c2de | 353 | if (fPtSpectrum) |
a7904bb7 | 354 | { |
355 | Int_t bin = fPtSpectrum->FindBin(pt); | |
356 | if (bin > 0 && bin <= fPtSpectrum->GetNbinsX()) | |
357 | { | |
6d81c2de | 358 | Float_t factor = fPtSpectrum->GetBinContent(bin); |
359 | if (factor > 0) | |
360 | { | |
361 | Float_t random = gRandom->Uniform(); | |
362 | if (factor > 1 && random < factor - 1) | |
363 | { | |
364 | particleWeight = 2; | |
365 | } | |
366 | else if (factor < 1 && random < 1 - factor) | |
367 | particleWeight = 0; | |
368 | } | |
a7904bb7 | 369 | } |
370 | } | |
371 | ||
372 | //Printf("MC weight is: %d", particleWeight); | |
373 | ||
0a173978 | 374 | if (TMath::Abs(particle->Eta()) < 0.5) |
a7904bb7 | 375 | nMCTracks05 += particleWeight; |
43a9a462 | 376 | |
6d81c2de | 377 | if (TMath::Abs(particle->Eta()) < 0.9) |
378 | nMCTracks09 += particleWeight; | |
0a173978 | 379 | |
380 | if (TMath::Abs(particle->Eta()) < 1.5) | |
a7904bb7 | 381 | nMCTracks15 += particleWeight; |
0a173978 | 382 | |
383 | if (TMath::Abs(particle->Eta()) < 2.0) | |
a7904bb7 | 384 | nMCTracks20 += particleWeight; |
0a173978 | 385 | |
a7904bb7 | 386 | nMCTracksAll += particleWeight; |
447c325d | 387 | |
9521d7a0 | 388 | if (fParticleCorrection[0] || fParticleSpecies) |
447c325d | 389 | { |
9521d7a0 | 390 | Int_t id = -1; |
391 | switch (TMath::Abs(particle->GetPdgCode())) | |
392 | { | |
393 | case 211: id = 0; break; | |
394 | case 321: id = 1; break; | |
395 | case 2212: id = 2; break; | |
396 | default: id = 3; break; | |
397 | } | |
6d81c2de | 398 | if (TMath::Abs(particle->Eta()) < etaRange) |
9521d7a0 | 399 | nMCTracksSpecies[id]++; |
400 | if (fParticleCorrection[id]) | |
401 | fParticleCorrection[id]->GetTrackCorrection()->FillGene(vtxMC[2], particle->Eta(), particle->Pt()); | |
447c325d | 402 | } |
43a9a462 | 403 | }// end of mc particle |
404 | ||
6d81c2de | 405 | fMultiplicity->FillGenerated(vtxMC[2], eventTriggered, eventVertex, (Int_t) nMCTracks05, (Int_t) nMCTracks09, (Int_t) nMCTracks15, (Int_t) nMCTracks20, (Int_t) nMCTracksAll); |
cfc19dd5 | 406 | |
407 | if (!eventTriggered || !eventVertex) | |
408 | return kTRUE; | |
0a173978 | 409 | |
410 | Int_t nESDTracks05 = 0; | |
6d81c2de | 411 | Int_t nESDTracks09 = 0; |
0a173978 | 412 | Int_t nESDTracks15 = 0; |
413 | Int_t nESDTracks20 = 0; | |
414 | ||
447c325d | 415 | // tracks per particle species, in |eta| < 2 (systematic study) |
a7904bb7 | 416 | Int_t nESDTracksSpecies[7]; // (pi, K, p, other, nolabel, doublecount_prim, doublecount_all) |
417 | for (Int_t i = 0; i<7; ++i) | |
447c325d | 418 | nESDTracksSpecies[i] = 0; |
419 | ||
a7904bb7 | 420 | Bool_t* foundPrimaries = new Bool_t[nPrim]; // to prevent double counting |
421 | for (Int_t i=0; i<nPrim; i++) | |
422 | foundPrimaries[i] = kFALSE; | |
423 | ||
6d81c2de | 424 | Bool_t* foundTracks = new Bool_t[nMCPart]; // to prevent double counting |
a7904bb7 | 425 | for (Int_t i=0; i<nMCPart; i++) |
426 | foundTracks[i] = kFALSE; | |
427 | ||
cfc19dd5 | 428 | #ifdef ITSMEASUREMENT |
0a173978 | 429 | // get multiplicity from ITS tracklets |
430 | for (Int_t i=0; i<mult->GetNumberOfTracklets(); ++i) | |
431 | { | |
432 | //printf("%d %f %f %f\n", i, mult->GetTheta(i), mult->GetPhi(i), mult->GetDeltaPhi(i)); | |
433 | ||
a7904bb7 | 434 | // This removes non-tracklets in PDC06 data. Very bad solution. New solution is implemented for newer data. Keeping this for compatibility. |
0a173978 | 435 | if (mult->GetDeltaPhi(i) < -1000) |
436 | continue; | |
437 | ||
447c325d | 438 | // systematic study: 10% lower efficiency |
a7904bb7 | 439 | if (fSystSkipParticles && (gRandom->Uniform() < 0.1)) |
447c325d | 440 | continue; |
441 | ||
0a173978 | 442 | Float_t theta = mult->GetTheta(i); |
443 | Float_t eta = -TMath::Log(TMath::Tan(theta/2.)); | |
6d81c2de | 444 | |
445 | // TODO define needed, because this only works with new AliRoot | |
446 | Int_t label = mult->GetLabel(i); | |
cfc19dd5 | 447 | #endif |
cfc19dd5 | 448 | #ifdef TPCMEASUREMENT |
0a173978 | 449 | // get multiplicity from ESD tracks |
cfc19dd5 | 450 | TObjArray* list = fEsdTrackCuts->GetAcceptedTracks(fESD); |
0a173978 | 451 | Int_t nGoodTracks = list->GetEntries(); |
452 | // loop over esd tracks | |
453 | for (Int_t i=0; i<nGoodTracks; i++) | |
454 | { | |
455 | AliESDtrack* esdTrack = dynamic_cast<AliESDtrack*> (list->At(i)); | |
456 | if (!esdTrack) | |
457 | { | |
458 | AliDebug(AliLog::kError, Form("ERROR: Could not retrieve track %d.", i)); | |
459 | continue; | |
460 | } | |
461 | ||
462 | Double_t p[3]; | |
6d81c2de | 463 | esdTrack->GetConstrainedPxPyPz(p); |
0a173978 | 464 | TVector3 vector(p); |
465 | ||
466 | Float_t theta = vector.Theta(); | |
467 | Float_t eta = -TMath::Log(TMath::Tan(theta/2.)); | |
0a173978 | 468 | |
6d81c2de | 469 | Int_t label = esdTrack->GetLabel(); |
470 | ||
471 | //Float_t pt = vector.Pt(); | |
cfc19dd5 | 472 | //if (pt < kPtCut) |
473 | // continue; | |
a7904bb7 | 474 | #endif |
475 | ||
476 | Int_t particleWeight = 1; | |
477 | ||
478 | // in case of systematic study, weight according to the change of the pt spectrum | |
479 | if (fPtSpectrum) | |
480 | { | |
481 | TParticle* mother = 0; | |
482 | ||
6d81c2de | 483 | // preserve label for later |
484 | Int_t labelCopy = label; | |
485 | if (labelCopy >= 0) | |
486 | labelCopy = AliPWG0depHelper::FindPrimaryMotherLabel(stack, labelCopy); | |
487 | if (labelCopy >= 0) | |
488 | mother = stack->Particle(labelCopy); | |
a7904bb7 | 489 | |
6d81c2de | 490 | // in case of pt study we do not count particles w/o label, because they cannot be scaled |
a7904bb7 | 491 | if (!mother) |
6d81c2de | 492 | continue; |
a7904bb7 | 493 | |
494 | // it cannot be just multiplied because we cannot count "half of a particle" | |
495 | // instead a random generator decides if the particle is counted twice (if value > 1) | |
496 | // or not (if value < 0) | |
497 | Int_t bin = fPtSpectrum->FindBin(mother->Pt()); | |
498 | if (bin > 0 && bin <= fPtSpectrum->GetNbinsX()) | |
499 | { | |
6d81c2de | 500 | Float_t factor = fPtSpectrum->GetBinContent(bin); |
501 | if (factor > 0) | |
502 | { | |
503 | Float_t random = gRandom->Uniform(); | |
504 | if (factor > 1 && random < factor - 1) | |
505 | { | |
506 | particleWeight = 2; | |
507 | } | |
508 | else if (factor < 1 && random < 1 - factor) | |
509 | particleWeight = 0; | |
510 | } | |
a7904bb7 | 511 | } |
512 | } | |
513 | ||
514 | //Printf("ESD weight is: %d", particleWeight); | |
0a173978 | 515 | |
516 | if (TMath::Abs(eta) < 0.5) | |
a7904bb7 | 517 | nESDTracks05 += particleWeight; |
43a9a462 | 518 | |
6d81c2de | 519 | if (TMath::Abs(eta) < 0.9) |
520 | nESDTracks09 += particleWeight; | |
0a173978 | 521 | |
522 | if (TMath::Abs(eta) < 1.5) | |
a7904bb7 | 523 | nESDTracks15 += particleWeight; |
0a173978 | 524 | |
525 | if (TMath::Abs(eta) < 2.0) | |
a7904bb7 | 526 | nESDTracks20 += particleWeight; |
447c325d | 527 | |
6d81c2de | 528 | |
9521d7a0 | 529 | if (fParticleCorrection[0] || fParticleSpecies) |
447c325d | 530 | { |
6d81c2de | 531 | Int_t motherLabel = -1; |
a7904bb7 | 532 | TParticle* mother = 0; |
533 | ||
534 | // find mother | |
535 | if (label >= 0) | |
6d81c2de | 536 | motherLabel = AliPWG0depHelper::FindPrimaryMotherLabel(stack, label); |
537 | if (motherLabel >= 0) | |
538 | mother = stack->Particle(motherLabel); | |
9521d7a0 | 539 | |
540 | if (!mother) | |
a7904bb7 | 541 | { |
6d81c2de | 542 | // count tracks that did not have a label |
543 | if (TMath::Abs(eta) < etaRange) | |
544 | nESDTracksSpecies[4]++; | |
9521d7a0 | 545 | continue; |
a7904bb7 | 546 | } |
9521d7a0 | 547 | |
6d81c2de | 548 | // get particle type (pion, proton, kaon, other) |
9521d7a0 | 549 | Int_t id = -1; |
550 | switch (TMath::Abs(mother->GetPdgCode())) | |
551 | { | |
552 | case 211: id = 0; break; | |
553 | case 321: id = 1; break; | |
554 | case 2212: id = 2; break; | |
555 | default: id = 3; break; | |
556 | } | |
6d81c2de | 557 | |
558 | // double counting is ok for particle ratio study | |
559 | if (TMath::Abs(eta) < etaRange) | |
9521d7a0 | 560 | nESDTracksSpecies[id]++; |
6d81c2de | 561 | |
562 | // double counting is not ok for efficiency study | |
563 | ||
564 | // check if we already counted this particle, this way distinguishes double counted particles (bug/artefact in tracking) or double counted primaries due to secondaries (physics) | |
565 | if (foundTracks[label]) | |
566 | { | |
567 | if (TMath::Abs(eta) < etaRange) | |
568 | nESDTracksSpecies[6]++; | |
569 | continue; | |
570 | } | |
571 | foundTracks[label] = kTRUE; | |
572 | ||
573 | // particle (primary) already counted? | |
574 | if (foundPrimaries[motherLabel]) | |
575 | { | |
576 | if (TMath::Abs(eta) < etaRange) | |
577 | nESDTracksSpecies[5]++; | |
578 | continue; | |
579 | } | |
580 | foundPrimaries[motherLabel] = kTRUE; | |
581 | ||
9521d7a0 | 582 | if (fParticleCorrection[id]) |
583 | fParticleCorrection[id]->GetTrackCorrection()->FillMeas(vtxMC[2], mother->Eta(), mother->Pt()); | |
447c325d | 584 | } |
cfc19dd5 | 585 | } |
0a173978 | 586 | |
a7904bb7 | 587 | delete[] foundTracks; |
588 | delete[] foundPrimaries; | |
589 | ||
590 | if ((Int_t) nMCTracks20 == 0 && nESDTracks20 > 3) | |
6d81c2de | 591 | printf("WARNING: Event %lld has %d generated and %d reconstructed...\n", entry, nMCTracks20, nESDTracks20); |
a7904bb7 | 592 | |
593 | //printf("%.2f generated and %.2f reconstructed\n", nMCTracks20, nESDTracks20); | |
447c325d | 594 | |
6d81c2de | 595 | //Printf("%f %f %f %f %f %f %f %f %f %f", vtxMC[2], nMCTracks05, nMCTracks09, nMCTracks15, nMCTracks20, nMCTracksAll, nESDTracks05, nESDTracks09, nESDTracks15, nESDTracks20); |
a7904bb7 | 596 | |
6d81c2de | 597 | //Printf("%f %f %f %f %f %f %f %f %f %f", vtxMC[2], nMCTracks05, nMCTracks09, nMCTracks15, nMCTracks20, nMCTracksAll, nESDTracks05, nESDTracks09, nESDTracks15, nESDTracks20); |
a7904bb7 | 598 | |
6d81c2de | 599 | fMultiplicity->FillMeasured(vtx[2], nESDTracks05, nESDTracks09, nESDTracks15, nESDTracks20); |
0a173978 | 600 | |
9521d7a0 | 601 | // fill response matrix using vtxMC (best guess) |
6d81c2de | 602 | fMultiplicity->FillCorrection(vtxMC[2], nMCTracks05, nMCTracks09, nMCTracks15, nMCTracks20, nMCTracksAll, nESDTracks05, nESDTracks09, nESDTracks15, nESDTracks20); |
43a9a462 | 603 | |
447c325d | 604 | if (fParticleSpecies) |
a7904bb7 | 605 | fParticleSpecies->Fill(vtxMC[2], nMCTracksSpecies[0], nMCTracksSpecies[1], nMCTracksSpecies[2], nMCTracksSpecies[3], nESDTracksSpecies[0], nESDTracksSpecies[1], nESDTracksSpecies[2], nESDTracksSpecies[3], nESDTracksSpecies[4], nESDTracksSpecies[5], nESDTracksSpecies[6]); |
606 | ||
607 | //Printf("%d = %d %d %d %d %d %d %d", (Int_t) nESDTracks20, nESDTracksSpecies[0], nESDTracksSpecies[1], nESDTracksSpecies[2], nESDTracksSpecies[3], nESDTracksSpecies[4], nESDTracksSpecies[5], nESDTracksSpecies[6]); | |
447c325d | 608 | |
43a9a462 | 609 | return kTRUE; |
610 | } | |
611 | ||
612 | void AliMultiplicityMCSelector::SlaveTerminate() | |
613 | { | |
614 | // The SlaveTerminate() function is called after all entries or objects | |
615 | // have been processed. When running with PROOF SlaveTerminate() is called | |
616 | // on each slave server. | |
617 | ||
618 | AliSelector::SlaveTerminate(); | |
619 | ||
620 | // Add the histograms to the output on each slave server | |
621 | if (!fOutput) | |
622 | { | |
623 | AliDebug(AliLog::kError, Form("ERROR: Output list not initialized.")); | |
624 | return; | |
625 | } | |
626 | ||
0a173978 | 627 | fOutput->Add(fMultiplicity); |
447c325d | 628 | for (Int_t i = 0; i < 4; ++i) |
629 | fOutput->Add(fParticleCorrection[i]); | |
630 | ||
631 | fOutput->Add(fParticleSpecies); | |
43a9a462 | 632 | } |
633 | ||
634 | void AliMultiplicityMCSelector::Terminate() | |
635 | { | |
636 | // The Terminate() function is the last function to be called during | |
637 | // a query. It always runs on the client, it can be used to present | |
638 | // the results graphically or save the results to file. | |
639 | ||
640 | AliSelector::Terminate(); | |
641 | ||
0a173978 | 642 | fMultiplicity = dynamic_cast<AliMultiplicityCorrection*> (fOutput->FindObject("Multiplicity")); |
447c325d | 643 | for (Int_t i = 0; i < 4; ++i) |
644 | fParticleCorrection[i] = dynamic_cast<AliCorrection*> (fOutput->FindObject(Form("correction_%d", i))); | |
645 | fParticleSpecies = dynamic_cast<TNtuple*> (fOutput->FindObject("fParticleSpecies")); | |
43a9a462 | 646 | |
0a173978 | 647 | if (!fMultiplicity) |
43a9a462 | 648 | { |
0a173978 | 649 | AliDebug(AliLog::kError, Form("ERROR: Histograms not available %p", (void*) fMultiplicity)); |
43a9a462 | 650 | return; |
651 | } | |
652 | ||
f31d5d49 | 653 | TFile* file = TFile::Open("multiplicityMC.root", "RECREATE"); |
43a9a462 | 654 | |
0a173978 | 655 | fMultiplicity->SaveHistograms(); |
447c325d | 656 | for (Int_t i = 0; i < 4; ++i) |
657 | if (fParticleCorrection[i]) | |
658 | fParticleCorrection[i]->SaveHistograms(); | |
a7904bb7 | 659 | if (fParticleSpecies) |
660 | fParticleSpecies->Write(); | |
661 | ||
662 | TObjString option(GetOption()); | |
663 | option.Write(); | |
43a9a462 | 664 | |
665 | file->Close(); | |
0a173978 | 666 | |
a7904bb7 | 667 | //fMultiplicity->DrawHistograms(); |
43a9a462 | 668 | } |