]>
Commit | Line | Data |
---|---|---|
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" | |
0a173978 | 28 | #include "dNdEta/AliMultiplicityCorrection.h" |
447c325d | 29 | #include "AliCorrection.h" |
30 | #include "AliCorrectionMatrix3D.h" | |
43a9a462 | 31 | |
6d81c2de | 32 | #define TPCMEASUREMENT |
33 | //#define ITSMEASUREMENT | |
cfc19dd5 | 34 | |
43a9a462 | 35 | ClassImp(AliMultiplicityMCSelector) |
36 | ||
37 | AliMultiplicityMCSelector::AliMultiplicityMCSelector() : | |
38 | AliSelectorRL(), | |
0a173978 | 39 | fMultiplicity(0), |
447c325d | 40 | fEsdTrackCuts(0), |
41 | fSystSkipParticles(kFALSE), | |
42 | fSelectProcessType(0), | |
a7904bb7 | 43 | fParticleSpecies(0), |
44 | fPtSpectrum(0) | |
43a9a462 | 45 | { |
46 | // | |
47 | // Constructor. Initialization of pointers | |
48 | // | |
447c325d | 49 | |
50 | for (Int_t i = 0; i<4; i++) | |
51 | fParticleCorrection[i] = 0; | |
43a9a462 | 52 | } |
53 | ||
54 | AliMultiplicityMCSelector::~AliMultiplicityMCSelector() | |
55 | { | |
56 | // | |
57 | // Destructor | |
58 | // | |
59 | ||
60 | // histograms are in the output list and deleted when the output | |
61 | // list is deleted by the TSelector dtor | |
62 | } | |
63 | ||
64 | void AliMultiplicityMCSelector::Begin(TTree* tree) | |
65 | { | |
66 | // Begin function | |
67 | ||
68 | AliSelectorRL::Begin(tree); | |
69 | ||
70 | ReadUserObjects(tree); | |
71 | } | |
72 | ||
73 | void AliMultiplicityMCSelector::ReadUserObjects(TTree* tree) | |
74 | { | |
75 | // read the user objects, called from slavebegin and begin | |
76 | ||
77 | if (!fEsdTrackCuts && fInput) | |
78 | fEsdTrackCuts = dynamic_cast<AliESDtrackCuts*> (fInput->FindObject("AliESDtrackCuts")); | |
79 | ||
80 | if (!fEsdTrackCuts && tree) | |
81 | fEsdTrackCuts = dynamic_cast<AliESDtrackCuts*> (tree->GetUserInfo()->FindObject("AliESDtrackCuts")); | |
82 | ||
83 | if (!fEsdTrackCuts) | |
84 | AliDebug(AliLog::kError, "ERROR: Could not read EsdTrackCuts from input list."); | |
6d81c2de | 85 | |
86 | if (!fPtSpectrum && fInput) | |
87 | fPtSpectrum = dynamic_cast<TH1*> (fInput->FindObject("pt-spectrum")); | |
88 | ||
89 | if (!fPtSpectrum && tree) | |
90 | fPtSpectrum = dynamic_cast<TH1*> (tree->GetUserInfo()->FindObject("pt-spectrum")); | |
43a9a462 | 91 | } |
92 | ||
93 | void AliMultiplicityMCSelector::SlaveBegin(TTree* tree) | |
94 | { | |
95 | // The SlaveBegin() function is called after the Begin() function. | |
96 | // When running with PROOF SlaveBegin() is called on each slave server. | |
97 | // The tree argument is deprecated (on PROOF 0 is passed). | |
98 | ||
99 | AliSelector::SlaveBegin(tree); | |
100 | ||
101 | ReadUserObjects(tree); | |
102 | ||
0a173978 | 103 | fMultiplicity = new AliMultiplicityCorrection("Multiplicity", "Multiplicity"); |
447c325d | 104 | |
105 | TString option(GetOption()); | |
106 | if (option.Contains("skip-particles")) | |
107 | { | |
108 | fSystSkipParticles = kTRUE; | |
109 | AliInfo("WARNING: Systematic study enabled. Particles will be skipped."); | |
110 | } | |
111 | ||
112 | if (option.Contains("particle-efficiency")) | |
113 | for (Int_t i = 0; i<4; i++) | |
114 | fParticleCorrection[i] = new AliCorrection(Form("correction_%d", i), Form("correction_%d", i)); | |
115 | ||
116 | if (option.Contains("only-process-type-nd")) | |
117 | fSelectProcessType = 1; | |
118 | ||
119 | if (option.Contains("only-process-type-sd")) | |
120 | fSelectProcessType = 2; | |
121 | ||
122 | if (option.Contains("only-process-type-dd")) | |
123 | fSelectProcessType = 3; | |
124 | ||
125 | if (fSelectProcessType != 0) | |
126 | AliInfo(Form("WARNING: Systematic study enabled. Only considering process type %d", fSelectProcessType)); | |
127 | ||
a7904bb7 | 128 | if (option.Contains("pt-spectrum-hist")) |
129 | { | |
130 | TFile* file = TFile::Open("ptspectrum_fit.root"); | |
131 | if (file) | |
132 | { | |
133 | TString subStr(option(option.Index("pt-spectrum")+17, 3)); | |
134 | TString histName(Form("ptspectrum_%s", subStr.Data())); | |
135 | AliInfo(Form("Pt-Spectrum modification. Using %s.", histName.Data())); | |
136 | fPtSpectrum = (TH1*) file->Get(histName); | |
137 | if (!fPtSpectrum) | |
138 | AliError("Histogram not found"); | |
139 | } | |
140 | else | |
141 | AliError("Could not open ptspectrum_fit.root. Pt Spectrum study could not be enabled."); | |
142 | ||
143 | if (fPtSpectrum) | |
144 | AliInfo("WARNING: Systematic study enabled. Pt spectrum will be modified"); | |
145 | } | |
146 | ||
147 | if (option.Contains("pt-spectrum-func")) | |
148 | { | |
6d81c2de | 149 | if (fPtSpectrum) |
150 | { | |
151 | Printf("Using function from input list for systematic p_t study"); | |
152 | } | |
153 | else | |
154 | { | |
155 | fPtSpectrum = new TH1F("fPtSpectrum", "fPtSpectrum", 1, 0, 100); | |
156 | fPtSpectrum->SetBinContent(1, 1); | |
157 | } | |
a7904bb7 | 158 | |
159 | if (fPtSpectrum) | |
160 | AliInfo("WARNING: Systematic study enabled. Pt spectrum will be modified"); | |
161 | } | |
162 | ||
447c325d | 163 | if (option.Contains("particle-species")) |
a7904bb7 | 164 | 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 | 165 | |
166 | // TODO set seed for random generator | |
0a173978 | 167 | } |
168 | ||
169 | void AliMultiplicityMCSelector::Init(TTree* tree) | |
170 | { | |
171 | // read the user objects | |
172 | ||
173 | AliSelectorRL::Init(tree); | |
174 | ||
b477f4f2 | 175 | // enable only the needed branches |
176 | if (tree) | |
0a173978 | 177 | { |
178 | tree->SetBranchStatus("*", 0); | |
179 | tree->SetBranchStatus("fTriggerMask", 1); | |
180 | tree->SetBranchStatus("fSPDVertex*", 1); | |
dd701109 | 181 | |
182 | #ifdef ITSMEASUREMENT | |
183 | tree->SetBranchStatus("fSPDMult*", 1); | |
184 | #endif | |
43a9a462 | 185 | |
cfc19dd5 | 186 | #ifdef TPCMEASUREMENT |
187 | AliESDtrackCuts::EnableNeededBranches(tree); | |
6d81c2de | 188 | tree->SetBranchStatus("fTracks.fLabel", 1); |
cfc19dd5 | 189 | #endif |
a7904bb7 | 190 | |
191 | tree->SetCacheSize(0); | |
b477f4f2 | 192 | } |
43a9a462 | 193 | } |
194 | ||
195 | Bool_t AliMultiplicityMCSelector::Process(Long64_t entry) | |
196 | { | |
197 | // The Process() function is called for each entry in the tree (or possibly | |
198 | // keyed object in the case of PROOF) to be processed. The entry argument | |
199 | // specifies which entry in the currently loaded tree is to be processed. | |
200 | // It can be passed to either TTree::GetEntry() or TBranch::GetEntry() | |
201 | // to read either all or the required parts of the data. When processing | |
202 | // keyed objects with PROOF, the object is already loaded and is available | |
203 | // via the fObject pointer. | |
204 | // | |
205 | // This function should contain the "body" of the analysis. It can contain | |
206 | // simple or elaborate selection criteria, run algorithms on the data | |
207 | // of the event and typically fill histograms. | |
208 | ||
209 | // WARNING when a selector is used with a TChain, you must use | |
210 | // the pointer to the current TTree to call GetEntry(entry). | |
211 | // The entry is always the local entry number in the current tree. | |
212 | // Assuming that fTree is the pointer to the TChain being processed, | |
213 | // use fTree->GetTree()->GetEntry(entry). | |
214 | ||
215 | if (AliSelectorRL::Process(entry) == kFALSE) | |
216 | return kFALSE; | |
217 | ||
218 | // Check prerequisites | |
219 | if (!fESD) | |
220 | { | |
221 | AliDebug(AliLog::kError, "ESD branch not available"); | |
222 | return kFALSE; | |
223 | } | |
224 | ||
225 | if (!fEsdTrackCuts) | |
226 | { | |
227 | AliDebug(AliLog::kError, "fESDTrackCuts not available"); | |
228 | return kFALSE; | |
229 | } | |
230 | ||
0a173978 | 231 | AliHeader* header = GetHeader(); |
232 | if (!header) | |
233 | { | |
234 | AliDebug(AliLog::kError, "Header not available"); | |
235 | return kFALSE; | |
236 | } | |
237 | ||
43a9a462 | 238 | AliStack* stack = GetStack(); |
239 | if (!stack) | |
240 | { | |
241 | AliDebug(AliLog::kError, "Stack not available"); | |
242 | return kFALSE; | |
243 | } | |
244 | ||
447c325d | 245 | if (fSelectProcessType > 0) |
246 | { | |
247 | // getting process information; NB: this only works for Pythia | |
0f67a57c | 248 | Int_t processtype = AliPWG0Helper::GetPythiaEventProcessType(header); |
447c325d | 249 | |
250 | Bool_t processEvent = kFALSE; | |
251 | ||
252 | // non diffractive | |
253 | if (fSelectProcessType == 1 && processtype !=92 && processtype !=93 && processtype != 94) | |
254 | processEvent = kTRUE; | |
255 | ||
256 | // single diffractive | |
257 | if (fSelectProcessType == 2 && (processtype == 92 || processtype == 93)) | |
258 | processEvent = kTRUE; | |
259 | ||
260 | // double diffractive | |
261 | if (fSelectProcessType == 3 && processtype == 94) | |
262 | processEvent = kTRUE; | |
263 | ||
264 | if (!processEvent) | |
265 | { | |
266 | AliDebug(AliLog::kDebug, Form("Skipping this event, because it is not of the requested process type (%d)", processtype)); | |
267 | return kTRUE; | |
268 | } | |
269 | } | |
270 | ||
cfc19dd5 | 271 | Bool_t eventTriggered = AliPWG0Helper::IsEventTriggered(fESD); |
447c325d | 272 | eventTriggered = kTRUE; // no generated trigger for the simulated events |
cfc19dd5 | 273 | Bool_t eventVertex = AliPWG0Helper::IsVertexReconstructed(fESD); |
43a9a462 | 274 | |
0a173978 | 275 | // get the ESD vertex |
276 | const AliESDVertex* vtxESD = fESD->GetVertex(); | |
277 | Double_t vtx[3]; | |
278 | vtxESD->GetXYZ(vtx); | |
279 | ||
280 | // get the MC vertex | |
281 | AliGenEventHeader* genHeader = header->GenEventHeader(); | |
282 | TArrayF vtxMC(3); | |
283 | genHeader->PrimaryVertex(vtxMC); | |
284 | ||
285 | // get tracklets | |
286 | const AliMultiplicity* mult = fESD->GetMultiplicity(); | |
287 | if (!mult) | |
288 | { | |
289 | AliDebug(AliLog::kError, "AliMultiplicity not available"); | |
290 | return kFALSE; | |
291 | } | |
43a9a462 | 292 | |
0a173978 | 293 | //const Float_t kPtCut = 0.3; |
43a9a462 | 294 | |
295 | // get number of tracks from MC | |
296 | // loop over mc particles | |
297 | Int_t nPrim = stack->GetNprimary(); | |
a7904bb7 | 298 | Int_t nMCPart = stack->GetNtrack(); |
0a173978 | 299 | |
300 | // tracks in different eta ranges | |
301 | Int_t nMCTracks05 = 0; | |
6d81c2de | 302 | Int_t nMCTracks09 = 0; |
0a173978 | 303 | Int_t nMCTracks15 = 0; |
304 | Int_t nMCTracks20 = 0; | |
305 | Int_t nMCTracksAll = 0; | |
306 | ||
447c325d | 307 | // tracks per particle species, in |eta| < 2 (systematic study) |
308 | Int_t nMCTracksSpecies[4]; // (pi, K, p, other) | |
309 | for (Int_t i = 0; i<4; ++i) | |
310 | nMCTracksSpecies[i] = 0; | |
6d81c2de | 311 | // eta range for nMCTracksSpecies, nESDTracksSpecies |
312 | #ifdef ITSMEASUREMENT | |
313 | const Float_t etaRange = 2.0; | |
314 | #else | |
315 | const Float_t etaRange = 0.9; | |
316 | #endif | |
447c325d | 317 | |
43a9a462 | 318 | for (Int_t iMc = 0; iMc < nPrim; ++iMc) |
319 | { | |
320 | AliDebug(AliLog::kDebug+1, Form("MC Loop: Processing particle %d.", iMc)); | |
321 | ||
322 | TParticle* particle = stack->Particle(iMc); | |
323 | ||
324 | if (!particle) | |
325 | { | |
326 | AliDebug(AliLog::kError, Form("UNEXPECTED: particle with label %d not found in stack (mc loop).", iMc)); | |
327 | continue; | |
328 | } | |
329 | ||
447c325d | 330 | Bool_t debug = kFALSE; |
331 | if (AliPWG0Helper::IsPrimaryCharged(particle, nPrim, debug) == kFALSE) | |
332 | { | |
333 | //printf("%d) DROPPED ", iMC); | |
334 | //particle->Print(); | |
43a9a462 | 335 | continue; |
447c325d | 336 | } |
337 | ||
338 | //printf("%d) OK ", iMC); | |
339 | //particle->Print(); | |
43a9a462 | 340 | |
0a173978 | 341 | //if (particle->Pt() < kPtCut) |
342 | // continue; | |
43a9a462 | 343 | |
a7904bb7 | 344 | Int_t particleWeight = 1; |
345 | ||
346 | Float_t pt = particle->Pt(); | |
347 | ||
348 | // in case of systematic study, weight according to the change of the pt spectrum | |
349 | // it cannot be just multiplied because we cannot count "half of a particle" | |
6d81c2de | 350 | // instead a random generator decides if the particle is counted twice (if value > 1) |
a7904bb7 | 351 | // or not (if value < 0) |
6d81c2de | 352 | if (fPtSpectrum) |
a7904bb7 | 353 | { |
354 | Int_t bin = fPtSpectrum->FindBin(pt); | |
355 | if (bin > 0 && bin <= fPtSpectrum->GetNbinsX()) | |
356 | { | |
6d81c2de | 357 | Float_t factor = fPtSpectrum->GetBinContent(bin); |
358 | if (factor > 0) | |
359 | { | |
360 | Float_t random = gRandom->Uniform(); | |
361 | if (factor > 1 && random < factor - 1) | |
362 | { | |
363 | particleWeight = 2; | |
364 | } | |
365 | else if (factor < 1 && random < 1 - factor) | |
366 | particleWeight = 0; | |
367 | } | |
a7904bb7 | 368 | } |
369 | } | |
370 | ||
371 | //Printf("MC weight is: %d", particleWeight); | |
372 | ||
0a173978 | 373 | if (TMath::Abs(particle->Eta()) < 0.5) |
a7904bb7 | 374 | nMCTracks05 += particleWeight; |
43a9a462 | 375 | |
6d81c2de | 376 | if (TMath::Abs(particle->Eta()) < 0.9) |
377 | nMCTracks09 += particleWeight; | |
0a173978 | 378 | |
379 | if (TMath::Abs(particle->Eta()) < 1.5) | |
a7904bb7 | 380 | nMCTracks15 += particleWeight; |
0a173978 | 381 | |
382 | if (TMath::Abs(particle->Eta()) < 2.0) | |
a7904bb7 | 383 | nMCTracks20 += particleWeight; |
0a173978 | 384 | |
a7904bb7 | 385 | nMCTracksAll += particleWeight; |
447c325d | 386 | |
9521d7a0 | 387 | if (fParticleCorrection[0] || fParticleSpecies) |
447c325d | 388 | { |
9521d7a0 | 389 | Int_t id = -1; |
390 | switch (TMath::Abs(particle->GetPdgCode())) | |
391 | { | |
392 | case 211: id = 0; break; | |
393 | case 321: id = 1; break; | |
394 | case 2212: id = 2; break; | |
395 | default: id = 3; break; | |
396 | } | |
6d81c2de | 397 | if (TMath::Abs(particle->Eta()) < etaRange) |
9521d7a0 | 398 | nMCTracksSpecies[id]++; |
399 | if (fParticleCorrection[id]) | |
400 | fParticleCorrection[id]->GetTrackCorrection()->FillGene(vtxMC[2], particle->Eta(), particle->Pt()); | |
447c325d | 401 | } |
43a9a462 | 402 | }// end of mc particle |
403 | ||
6d81c2de | 404 | fMultiplicity->FillGenerated(vtxMC[2], eventTriggered, eventVertex, (Int_t) nMCTracks05, (Int_t) nMCTracks09, (Int_t) nMCTracks15, (Int_t) nMCTracks20, (Int_t) nMCTracksAll); |
cfc19dd5 | 405 | |
406 | if (!eventTriggered || !eventVertex) | |
407 | return kTRUE; | |
0a173978 | 408 | |
409 | Int_t nESDTracks05 = 0; | |
6d81c2de | 410 | Int_t nESDTracks09 = 0; |
0a173978 | 411 | Int_t nESDTracks15 = 0; |
412 | Int_t nESDTracks20 = 0; | |
413 | ||
447c325d | 414 | // tracks per particle species, in |eta| < 2 (systematic study) |
a7904bb7 | 415 | Int_t nESDTracksSpecies[7]; // (pi, K, p, other, nolabel, doublecount_prim, doublecount_all) |
416 | for (Int_t i = 0; i<7; ++i) | |
447c325d | 417 | nESDTracksSpecies[i] = 0; |
418 | ||
a7904bb7 | 419 | Bool_t* foundPrimaries = new Bool_t[nPrim]; // to prevent double counting |
420 | for (Int_t i=0; i<nPrim; i++) | |
421 | foundPrimaries[i] = kFALSE; | |
422 | ||
6d81c2de | 423 | Bool_t* foundTracks = new Bool_t[nMCPart]; // to prevent double counting |
a7904bb7 | 424 | for (Int_t i=0; i<nMCPart; i++) |
425 | foundTracks[i] = kFALSE; | |
426 | ||
cfc19dd5 | 427 | #ifdef ITSMEASUREMENT |
0a173978 | 428 | // get multiplicity from ITS tracklets |
429 | for (Int_t i=0; i<mult->GetNumberOfTracklets(); ++i) | |
430 | { | |
431 | //printf("%d %f %f %f\n", i, mult->GetTheta(i), mult->GetPhi(i), mult->GetDeltaPhi(i)); | |
432 | ||
a7904bb7 | 433 | // This removes non-tracklets in PDC06 data. Very bad solution. New solution is implemented for newer data. Keeping this for compatibility. |
0a173978 | 434 | if (mult->GetDeltaPhi(i) < -1000) |
435 | continue; | |
436 | ||
447c325d | 437 | // systematic study: 10% lower efficiency |
a7904bb7 | 438 | if (fSystSkipParticles && (gRandom->Uniform() < 0.1)) |
447c325d | 439 | continue; |
440 | ||
0a173978 | 441 | Float_t theta = mult->GetTheta(i); |
442 | Float_t eta = -TMath::Log(TMath::Tan(theta/2.)); | |
6d81c2de | 443 | |
444 | // TODO define needed, because this only works with new AliRoot | |
445 | Int_t label = mult->GetLabel(i); | |
cfc19dd5 | 446 | #endif |
cfc19dd5 | 447 | #ifdef TPCMEASUREMENT |
0a173978 | 448 | // get multiplicity from ESD tracks |
cfc19dd5 | 449 | TObjArray* list = fEsdTrackCuts->GetAcceptedTracks(fESD); |
0a173978 | 450 | Int_t nGoodTracks = list->GetEntries(); |
451 | // loop over esd tracks | |
452 | for (Int_t i=0; i<nGoodTracks; i++) | |
453 | { | |
454 | AliESDtrack* esdTrack = dynamic_cast<AliESDtrack*> (list->At(i)); | |
455 | if (!esdTrack) | |
456 | { | |
457 | AliDebug(AliLog::kError, Form("ERROR: Could not retrieve track %d.", i)); | |
458 | continue; | |
459 | } | |
460 | ||
461 | Double_t p[3]; | |
6d81c2de | 462 | esdTrack->GetConstrainedPxPyPz(p); |
0a173978 | 463 | TVector3 vector(p); |
464 | ||
465 | Float_t theta = vector.Theta(); | |
466 | Float_t eta = -TMath::Log(TMath::Tan(theta/2.)); | |
0a173978 | 467 | |
6d81c2de | 468 | Int_t label = esdTrack->GetLabel(); |
469 | ||
470 | //Float_t pt = vector.Pt(); | |
cfc19dd5 | 471 | //if (pt < kPtCut) |
472 | // continue; | |
a7904bb7 | 473 | #endif |
474 | ||
475 | Int_t particleWeight = 1; | |
476 | ||
477 | // in case of systematic study, weight according to the change of the pt spectrum | |
478 | if (fPtSpectrum) | |
479 | { | |
480 | TParticle* mother = 0; | |
481 | ||
6d81c2de | 482 | // preserve label for later |
483 | Int_t labelCopy = label; | |
484 | if (labelCopy >= 0) | |
0f67a57c | 485 | labelCopy = AliPWG0Helper::FindPrimaryMotherLabel(stack, labelCopy); |
6d81c2de | 486 | if (labelCopy >= 0) |
487 | mother = stack->Particle(labelCopy); | |
a7904bb7 | 488 | |
6d81c2de | 489 | // in case of pt study we do not count particles w/o label, because they cannot be scaled |
a7904bb7 | 490 | if (!mother) |
6d81c2de | 491 | continue; |
a7904bb7 | 492 | |
493 | // it cannot be just multiplied because we cannot count "half of a particle" | |
494 | // instead a random generator decides if the particle is counted twice (if value > 1) | |
495 | // or not (if value < 0) | |
496 | Int_t bin = fPtSpectrum->FindBin(mother->Pt()); | |
497 | if (bin > 0 && bin <= fPtSpectrum->GetNbinsX()) | |
498 | { | |
6d81c2de | 499 | Float_t factor = fPtSpectrum->GetBinContent(bin); |
500 | if (factor > 0) | |
501 | { | |
502 | Float_t random = gRandom->Uniform(); | |
503 | if (factor > 1 && random < factor - 1) | |
504 | { | |
505 | particleWeight = 2; | |
506 | } | |
507 | else if (factor < 1 && random < 1 - factor) | |
508 | particleWeight = 0; | |
509 | } | |
a7904bb7 | 510 | } |
511 | } | |
512 | ||
513 | //Printf("ESD weight is: %d", particleWeight); | |
0a173978 | 514 | |
515 | if (TMath::Abs(eta) < 0.5) | |
a7904bb7 | 516 | nESDTracks05 += particleWeight; |
43a9a462 | 517 | |
6d81c2de | 518 | if (TMath::Abs(eta) < 0.9) |
519 | nESDTracks09 += particleWeight; | |
0a173978 | 520 | |
521 | if (TMath::Abs(eta) < 1.5) | |
a7904bb7 | 522 | nESDTracks15 += particleWeight; |
0a173978 | 523 | |
524 | if (TMath::Abs(eta) < 2.0) | |
a7904bb7 | 525 | nESDTracks20 += particleWeight; |
447c325d | 526 | |
6d81c2de | 527 | |
9521d7a0 | 528 | if (fParticleCorrection[0] || fParticleSpecies) |
447c325d | 529 | { |
6d81c2de | 530 | Int_t motherLabel = -1; |
a7904bb7 | 531 | TParticle* mother = 0; |
532 | ||
533 | // find mother | |
534 | if (label >= 0) | |
0f67a57c | 535 | motherLabel = AliPWG0Helper::FindPrimaryMotherLabel(stack, label); |
6d81c2de | 536 | if (motherLabel >= 0) |
537 | mother = stack->Particle(motherLabel); | |
9521d7a0 | 538 | |
539 | if (!mother) | |
a7904bb7 | 540 | { |
6d81c2de | 541 | // count tracks that did not have a label |
542 | if (TMath::Abs(eta) < etaRange) | |
543 | nESDTracksSpecies[4]++; | |
9521d7a0 | 544 | continue; |
a7904bb7 | 545 | } |
9521d7a0 | 546 | |
6d81c2de | 547 | // get particle type (pion, proton, kaon, other) |
9521d7a0 | 548 | Int_t id = -1; |
549 | switch (TMath::Abs(mother->GetPdgCode())) | |
550 | { | |
551 | case 211: id = 0; break; | |
552 | case 321: id = 1; break; | |
553 | case 2212: id = 2; break; | |
554 | default: id = 3; break; | |
555 | } | |
6d81c2de | 556 | |
557 | // double counting is ok for particle ratio study | |
558 | if (TMath::Abs(eta) < etaRange) | |
9521d7a0 | 559 | nESDTracksSpecies[id]++; |
6d81c2de | 560 | |
561 | // double counting is not ok for efficiency study | |
562 | ||
563 | // 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) | |
564 | if (foundTracks[label]) | |
565 | { | |
566 | if (TMath::Abs(eta) < etaRange) | |
567 | nESDTracksSpecies[6]++; | |
568 | continue; | |
569 | } | |
570 | foundTracks[label] = kTRUE; | |
571 | ||
572 | // particle (primary) already counted? | |
573 | if (foundPrimaries[motherLabel]) | |
574 | { | |
575 | if (TMath::Abs(eta) < etaRange) | |
576 | nESDTracksSpecies[5]++; | |
577 | continue; | |
578 | } | |
579 | foundPrimaries[motherLabel] = kTRUE; | |
580 | ||
9521d7a0 | 581 | if (fParticleCorrection[id]) |
582 | fParticleCorrection[id]->GetTrackCorrection()->FillMeas(vtxMC[2], mother->Eta(), mother->Pt()); | |
447c325d | 583 | } |
cfc19dd5 | 584 | } |
0a173978 | 585 | |
a7904bb7 | 586 | delete[] foundTracks; |
587 | delete[] foundPrimaries; | |
588 | ||
589 | if ((Int_t) nMCTracks20 == 0 && nESDTracks20 > 3) | |
6d81c2de | 590 | printf("WARNING: Event %lld has %d generated and %d reconstructed...\n", entry, nMCTracks20, nESDTracks20); |
a7904bb7 | 591 | |
592 | //printf("%.2f generated and %.2f reconstructed\n", nMCTracks20, nESDTracks20); | |
447c325d | 593 | |
6d81c2de | 594 | //Printf("%f %f %f %f %f %f %f %f %f %f", vtxMC[2], nMCTracks05, nMCTracks09, nMCTracks15, nMCTracks20, nMCTracksAll, nESDTracks05, nESDTracks09, nESDTracks15, nESDTracks20); |
a7904bb7 | 595 | |
6d81c2de | 596 | //Printf("%f %f %f %f %f %f %f %f %f %f", vtxMC[2], nMCTracks05, nMCTracks09, nMCTracks15, nMCTracks20, nMCTracksAll, nESDTracks05, nESDTracks09, nESDTracks15, nESDTracks20); |
a7904bb7 | 597 | |
6d81c2de | 598 | fMultiplicity->FillMeasured(vtx[2], nESDTracks05, nESDTracks09, nESDTracks15, nESDTracks20); |
0a173978 | 599 | |
9521d7a0 | 600 | // fill response matrix using vtxMC (best guess) |
6d81c2de | 601 | fMultiplicity->FillCorrection(vtxMC[2], nMCTracks05, nMCTracks09, nMCTracks15, nMCTracks20, nMCTracksAll, nESDTracks05, nESDTracks09, nESDTracks15, nESDTracks20); |
43a9a462 | 602 | |
447c325d | 603 | if (fParticleSpecies) |
a7904bb7 | 604 | 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]); |
605 | ||
606 | //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 | 607 | |
43a9a462 | 608 | return kTRUE; |
609 | } | |
610 | ||
611 | void AliMultiplicityMCSelector::SlaveTerminate() | |
612 | { | |
613 | // The SlaveTerminate() function is called after all entries or objects | |
614 | // have been processed. When running with PROOF SlaveTerminate() is called | |
615 | // on each slave server. | |
616 | ||
617 | AliSelector::SlaveTerminate(); | |
618 | ||
619 | // Add the histograms to the output on each slave server | |
620 | if (!fOutput) | |
621 | { | |
622 | AliDebug(AliLog::kError, Form("ERROR: Output list not initialized.")); | |
623 | return; | |
624 | } | |
625 | ||
0a173978 | 626 | fOutput->Add(fMultiplicity); |
447c325d | 627 | for (Int_t i = 0; i < 4; ++i) |
628 | fOutput->Add(fParticleCorrection[i]); | |
629 | ||
630 | fOutput->Add(fParticleSpecies); | |
43a9a462 | 631 | } |
632 | ||
633 | void AliMultiplicityMCSelector::Terminate() | |
634 | { | |
635 | // The Terminate() function is the last function to be called during | |
636 | // a query. It always runs on the client, it can be used to present | |
637 | // the results graphically or save the results to file. | |
638 | ||
639 | AliSelector::Terminate(); | |
640 | ||
0a173978 | 641 | fMultiplicity = dynamic_cast<AliMultiplicityCorrection*> (fOutput->FindObject("Multiplicity")); |
447c325d | 642 | for (Int_t i = 0; i < 4; ++i) |
643 | fParticleCorrection[i] = dynamic_cast<AliCorrection*> (fOutput->FindObject(Form("correction_%d", i))); | |
644 | fParticleSpecies = dynamic_cast<TNtuple*> (fOutput->FindObject("fParticleSpecies")); | |
43a9a462 | 645 | |
0a173978 | 646 | if (!fMultiplicity) |
43a9a462 | 647 | { |
0a173978 | 648 | AliDebug(AliLog::kError, Form("ERROR: Histograms not available %p", (void*) fMultiplicity)); |
43a9a462 | 649 | return; |
650 | } | |
651 | ||
f31d5d49 | 652 | TFile* file = TFile::Open("multiplicityMC.root", "RECREATE"); |
43a9a462 | 653 | |
0a173978 | 654 | fMultiplicity->SaveHistograms(); |
447c325d | 655 | for (Int_t i = 0; i < 4; ++i) |
656 | if (fParticleCorrection[i]) | |
657 | fParticleCorrection[i]->SaveHistograms(); | |
a7904bb7 | 658 | if (fParticleSpecies) |
659 | fParticleSpecies->Write(); | |
660 | ||
661 | TObjString option(GetOption()); | |
662 | option.Write(); | |
43a9a462 | 663 | |
664 | file->Close(); | |
0a173978 | 665 | |
a7904bb7 | 666 | //fMultiplicity->DrawHistograms(); |
43a9a462 | 667 | } |