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03d23846 | 1 | // |
2 | // Analysis task for 'mini' sub-package | |
3 | // Contains all definitions needed for running an analysis: | |
4 | // -- global event cut | |
5 | // -- a list of track cuts (any number) | |
6 | // -- definitions of output histograms | |
7 | // -- values to be computed. | |
8 | // Each one must be defined using the "CREATE" methods, which | |
9 | // add directly a new element in the task collections, and don't | |
10 | // need an external object to be passed to the task itself. | |
11 | // | |
12 | ||
13 | #include <Riostream.h> | |
14 | ||
03d23846 | 15 | #include <TH1.h> |
6aaeb33c | 16 | #include <TList.h> |
17 | #include <TTree.h> | |
03d23846 | 18 | |
19 | #include "AliLog.h" | |
6aaeb33c | 20 | #include "AliEventplane.h" |
21 | #include "AliMultiplicity.h" | |
22 | #include "AliTriggerAnalysis.h" | |
03d23846 | 23 | #include "AliAnalysisManager.h" |
6aaeb33c | 24 | #include "AliInputEventHandler.h" |
25 | ||
03d23846 | 26 | #include "AliESDtrackCuts.h" |
27 | #include "AliESDUtils.h" | |
6aaeb33c | 28 | |
03d23846 | 29 | #include "AliAODEvent.h" |
03d23846 | 30 | #include "AliAODMCParticle.h" |
31 | ||
32 | #include "AliRsnCutSet.h" | |
6aaeb33c | 33 | #include "AliRsnMiniPair.h" |
03d23846 | 34 | #include "AliRsnMiniEvent.h" |
35 | #include "AliRsnMiniParticle.h" | |
03d23846 | 36 | |
37 | #include "AliRsnMiniAnalysisTask.h" | |
38 | ||
39 | ClassImp(AliRsnMiniAnalysisTask) | |
40 | ||
41 | //__________________________________________________________________________________________________ | |
42 | AliRsnMiniAnalysisTask::AliRsnMiniAnalysisTask() : | |
43 | AliAnalysisTaskSE(), | |
c80938f5 | 44 | fUseMC(kFALSE), |
03d23846 | 45 | fEvNum(0), |
46 | fUseCentrality(kFALSE), | |
47 | fCentralityType("QUALITY"), | |
48 | fNMix(0), | |
49 | fMaxDiffMult(10), | |
50 | fMaxDiffVz(1.0), | |
51 | fMaxDiffAngle(1E20), | |
52 | fOutput(0x0), | |
53 | fHistograms("AliRsnMiniOutput", 0), | |
54 | fValues("AliRsnMiniValue", 0), | |
55 | fHEventStat(0x0), | |
56 | fEventCuts(0x0), | |
57 | fTrackCuts(0), | |
58 | fRsnEvent(), | |
c80938f5 | 59 | fEvBuffer(0x0), |
c80938f5 | 60 | fTriggerAna(0x0), |
6aaeb33c | 61 | fESDtrackCuts(0x0), |
62 | fMiniEvent(0x0) | |
03d23846 | 63 | { |
64 | // | |
65 | // Dummy constructor ALWAYS needed for I/O. | |
66 | // | |
67 | } | |
68 | ||
69 | //__________________________________________________________________________________________________ | |
c80938f5 | 70 | AliRsnMiniAnalysisTask::AliRsnMiniAnalysisTask(const char *name, Bool_t useMC) : |
03d23846 | 71 | AliAnalysisTaskSE(name), |
c80938f5 | 72 | fUseMC(useMC), |
03d23846 | 73 | fEvNum(0), |
74 | fUseCentrality(kFALSE), | |
75 | fCentralityType("QUALITY"), | |
76 | fNMix(0), | |
77 | fMaxDiffMult(10), | |
78 | fMaxDiffVz(1.0), | |
79 | fMaxDiffAngle(1E20), | |
80 | fOutput(0x0), | |
81 | fHistograms("AliRsnMiniOutput", 0), | |
82 | fValues("AliRsnMiniValue", 0), | |
83 | fHEventStat(0x0), | |
84 | fEventCuts(0x0), | |
85 | fTrackCuts(0), | |
86 | fRsnEvent(), | |
c80938f5 | 87 | fEvBuffer(0x0), |
c80938f5 | 88 | fTriggerAna(0x0), |
6aaeb33c | 89 | fESDtrackCuts(0x0), |
90 | fMiniEvent(0x0) | |
03d23846 | 91 | { |
92 | // | |
93 | // Default constructor. | |
94 | // Define input and output slots here (never in the dummy constructor) | |
95 | // Input slot #0 works with a TChain - it is connected to the default input container | |
96 | // Output slot #1 writes into a TH1 container | |
97 | // | |
98 | ||
99 | DefineOutput(1, TList::Class()); | |
100 | } | |
101 | ||
102 | //__________________________________________________________________________________________________ | |
103 | AliRsnMiniAnalysisTask::AliRsnMiniAnalysisTask(const AliRsnMiniAnalysisTask& copy) : | |
104 | AliAnalysisTaskSE(copy), | |
c80938f5 | 105 | fUseMC(copy.fUseMC), |
03d23846 | 106 | fEvNum(0), |
107 | fUseCentrality(copy.fUseCentrality), | |
108 | fCentralityType(copy.fCentralityType), | |
109 | fNMix(copy.fNMix), | |
110 | fMaxDiffMult(copy.fMaxDiffMult), | |
111 | fMaxDiffVz(copy.fMaxDiffVz), | |
112 | fMaxDiffAngle(copy.fMaxDiffAngle), | |
113 | fOutput(0x0), | |
114 | fHistograms(copy.fHistograms), | |
115 | fValues(copy.fValues), | |
116 | fHEventStat(0x0), | |
117 | fEventCuts(copy.fEventCuts), | |
118 | fTrackCuts(copy.fTrackCuts), | |
119 | fRsnEvent(), | |
c80938f5 | 120 | fEvBuffer(0x0), |
c80938f5 | 121 | fTriggerAna(copy.fTriggerAna), |
6aaeb33c | 122 | fESDtrackCuts(copy.fESDtrackCuts), |
123 | fMiniEvent(0x0) | |
03d23846 | 124 | { |
125 | // | |
126 | // Copy constructor. | |
127 | // Implemented as requested by C++ standards. | |
128 | // Can be used in PROOF and by plugins. | |
129 | // | |
130 | } | |
131 | ||
132 | //__________________________________________________________________________________________________ | |
133 | AliRsnMiniAnalysisTask& AliRsnMiniAnalysisTask::operator=(const AliRsnMiniAnalysisTask& copy) | |
134 | { | |
135 | // | |
136 | // Assignment operator. | |
137 | // Implemented as requested by C++ standards. | |
138 | // Can be used in PROOF and by plugins. | |
139 | // | |
140 | ||
141 | AliAnalysisTaskSE::operator=(copy); | |
142 | ||
c80938f5 | 143 | fUseMC = copy.fUseMC; |
03d23846 | 144 | fUseCentrality = copy.fUseCentrality; |
145 | fCentralityType = copy.fCentralityType; | |
146 | fNMix = copy.fNMix; | |
147 | fMaxDiffMult = copy.fMaxDiffMult; | |
148 | fMaxDiffVz = copy.fMaxDiffVz; | |
149 | fMaxDiffAngle = copy.fMaxDiffAngle; | |
150 | fHistograms = copy.fHistograms; | |
151 | fValues = copy.fValues; | |
152 | fEventCuts = copy.fEventCuts; | |
153 | fTrackCuts = copy.fTrackCuts; | |
154 | fTriggerAna = copy.fTriggerAna; | |
c80938f5 | 155 | fESDtrackCuts = copy.fESDtrackCuts; |
03d23846 | 156 | |
157 | return (*this); | |
158 | } | |
159 | ||
160 | //__________________________________________________________________________________________________ | |
161 | AliRsnMiniAnalysisTask::~AliRsnMiniAnalysisTask() | |
162 | { | |
163 | // | |
164 | // Destructor. | |
165 | // Clean-up the output list, but not the histograms that are put inside | |
166 | // (the list is owner and will clean-up these histograms). Protect in PROOF case. | |
167 | // | |
168 | ||
d573d2fb | 169 | |
03d23846 | 170 | if (fOutput && !AliAnalysisManager::GetAnalysisManager()->IsProofMode()) { |
171 | delete fOutput; | |
d573d2fb | 172 | delete fEvBuffer; |
03d23846 | 173 | } |
174 | } | |
175 | ||
176 | //__________________________________________________________________________________________________ | |
177 | Int_t AliRsnMiniAnalysisTask::AddTrackCuts(AliRsnCutSet *cuts) | |
178 | { | |
179 | // | |
180 | // Add a new cut set for a new criterion for track selection. | |
181 | // A user can add as many as he wants, and each one corresponds | |
182 | // to one of the available bits in the AliRsnMiniParticle mask. | |
183 | // The only check is the following: if a cut set with the same name | |
184 | // as the argument is there, this is not added. | |
185 | // Return value is the array position of this set. | |
186 | // | |
187 | ||
188 | TObject *obj = fTrackCuts.FindObject(cuts->GetName()); | |
189 | ||
190 | if (obj) { | |
191 | AliInfo(Form("A cut set named '%s' already exists", cuts->GetName())); | |
192 | return fTrackCuts.IndexOf(obj); | |
193 | } else { | |
194 | fTrackCuts.AddLast(cuts); | |
195 | return fTrackCuts.IndexOf(cuts); | |
196 | } | |
197 | } | |
198 | ||
199 | //__________________________________________________________________________________________________ | |
200 | void AliRsnMiniAnalysisTask::UserCreateOutputObjects() | |
201 | { | |
202 | // | |
203 | // Initialization of outputs. | |
204 | // This is called once per worker node. | |
205 | // | |
206 | ||
207 | // reset counter | |
208 | fEvNum = 0; | |
d573d2fb | 209 | |
210 | // message | |
211 | AliInfo(Form("Selected event characterization: %s (%s)", (fUseCentrality ? "centrality" : "multiplicity"), fCentralityType.Data())); | |
03d23846 | 212 | |
213 | // initialize trigger analysis | |
c80938f5 | 214 | if (fTriggerAna) delete fTriggerAna; |
03d23846 | 215 | fTriggerAna = new AliTriggerAnalysis; |
c80938f5 | 216 | |
217 | // initialize ESD quality cuts | |
218 | if (fESDtrackCuts) delete fESDtrackCuts; | |
219 | fESDtrackCuts = AliESDtrackCuts::GetStandardITSTPCTrackCuts2010(); | |
03d23846 | 220 | |
221 | // create list and set it as owner of its content (MANDATORY) | |
222 | fOutput = new TList(); | |
223 | fOutput->SetOwner(); | |
224 | ||
225 | // initialize event statistics counter | |
226 | fHEventStat = new TH1F("hEventStat", "Event statistics", 4, 0.0, 4.0); | |
227 | fHEventStat->GetXaxis()->SetBinLabel(1, "CINT1B"); | |
228 | fHEventStat->GetXaxis()->SetBinLabel(2, "V0AND"); | |
229 | fHEventStat->GetXaxis()->SetBinLabel(3, "Candle"); | |
230 | fHEventStat->GetXaxis()->SetBinLabel(4, "Accepted"); | |
231 | fOutput->Add(fHEventStat); | |
232 | ||
233 | // create temporary tree for filtered events | |
6aaeb33c | 234 | if (fMiniEvent) delete fMiniEvent; |
c80938f5 | 235 | fEvBuffer = new TTree("EventBuffer", "Temporary buffer for mini events"); |
6aaeb33c | 236 | fEvBuffer->Branch("events", "AliRsnMiniEvent", &fMiniEvent); |
03d23846 | 237 | |
238 | // create one histogram per each stored definition (event histograms) | |
239 | Int_t i, ndef = fHistograms.GetEntries(); | |
240 | AliRsnMiniOutput *def = 0x0; | |
241 | for (i = 0; i < ndef; i++) { | |
242 | def = (AliRsnMiniOutput*)fHistograms[i]; | |
243 | if (!def) continue; | |
244 | if (!def->Init(GetName(), fOutput)) { | |
245 | AliError(Form("Def '%s': failed initialization", def->GetName())); | |
246 | continue; | |
247 | } | |
248 | } | |
249 | ||
03d23846 | 250 | // post data for ALL output slots >0 here, to get at least an empty histogram |
251 | PostData(1, fOutput); | |
252 | } | |
253 | ||
254 | //__________________________________________________________________________________________________ | |
255 | void AliRsnMiniAnalysisTask::UserExec(Option_t *) | |
256 | { | |
257 | // | |
6aaeb33c | 258 | // Computation loop. |
259 | // In this case, it checks if the event is acceptable, and eventually | |
260 | // creates the corresponding mini-event and stores it in the buffer. | |
261 | // The real histogram filling is done at the end, in "FinishTaskOutput". | |
03d23846 | 262 | // |
263 | ||
264 | // event counter | |
265 | fEvNum++; | |
266 | ||
267 | // check current event | |
268 | Char_t check = CheckCurrentEvent(); | |
269 | if (!check) return; | |
03d23846 | 270 | |
d573d2fb | 271 | // setup PID response |
272 | AliAnalysisManager *man = AliAnalysisManager::GetAnalysisManager(); | |
273 | AliInputEventHandler *inputHandler = (AliInputEventHandler*)man->GetInputEventHandler(); | |
274 | fRsnEvent.SetPIDResponse(inputHandler->GetPIDResponse()); | |
275 | ||
6aaeb33c | 276 | // fill a mini-event from current |
277 | // and skip this event if no tracks were accepted | |
45aa62b9 | 278 | FillMiniEvent(check); |
03d23846 | 279 | |
6aaeb33c | 280 | // fill MC based histograms on mothers, |
281 | // which do need the original event | |
c80938f5 | 282 | if (fUseMC) { |
283 | if (fRsnEvent.IsESD() && fMCEvent) | |
6aaeb33c | 284 | FillTrueMotherESD(fMiniEvent); |
c80938f5 | 285 | else if (fRsnEvent.IsAOD() && fRsnEvent.GetAODList()) |
6aaeb33c | 286 | FillTrueMotherAOD(fMiniEvent); |
03d23846 | 287 | } |
03d23846 | 288 | |
289 | // store event | |
c80938f5 | 290 | fEvBuffer->Fill(); |
03d23846 | 291 | |
6aaeb33c | 292 | // post data for computed stuff |
03d23846 | 293 | PostData(1, fOutput); |
294 | } | |
295 | ||
296 | //__________________________________________________________________________________________________ | |
297 | void AliRsnMiniAnalysisTask::FinishTaskOutput() | |
298 | { | |
299 | // | |
6aaeb33c | 300 | // This function is called at the end of the loop on available events, |
301 | // and then the buffer will be full with all the corresponding mini-events, | |
302 | // each one containing all tracks selected by each of the available track cuts. | |
303 | // Here a loop is done on each of these events, and both single-event and mixing are computed | |
03d23846 | 304 | // |
305 | ||
6aaeb33c | 306 | // security code: reassign the buffer to the mini-event cursor |
307 | fEvBuffer->SetBranchAddress("events", &fMiniEvent); | |
308 | ||
0efb7042 | 309 | // prepare variables |
6aaeb33c | 310 | Int_t ievt, nEvents = (Int_t)fEvBuffer->GetEntries(); |
311 | Int_t idef, nDefs = fHistograms.GetEntries(); | |
45aa62b9 | 312 | Int_t imix, iloop, ifill; |
6aaeb33c | 313 | AliRsnMiniOutput *def = 0x0; |
314 | AliRsnMiniOutput::EComputation compType; | |
03d23846 | 315 | |
6aaeb33c | 316 | // loop on events, and for each one fill all outputs |
317 | // using the appropriate procedure depending on its type | |
318 | // only mother-related histograms are filled in UserExec, | |
319 | // since they require direct access to MC event | |
320 | for (ievt = 0; ievt < nEvents; ievt++) { | |
321 | // get next entry | |
322 | fEvBuffer->GetEntry(ievt); | |
45aa62b9 | 323 | // fill |
6aaeb33c | 324 | for (idef = 0; idef < nDefs; idef++) { |
325 | def = (AliRsnMiniOutput*)fHistograms[idef]; | |
326 | if (!def) continue; | |
327 | compType = def->GetComputation(); | |
328 | // execute computation in the appropriate way | |
329 | switch (compType) { | |
330 | case AliRsnMiniOutput::kEventOnly: | |
0efb7042 | 331 | AliDebugClass(1, Form("Event %d, def '%s': event-value histogram filling", ievt, def->GetName())); |
45aa62b9 | 332 | ifill = 1; |
0efb7042 | 333 | def->FillEvent(fMiniEvent, &fValues); |
6aaeb33c | 334 | break; |
335 | case AliRsnMiniOutput::kTruePair: | |
0efb7042 | 336 | AliDebugClass(1, Form("Event %d, def '%s': true-pair histogram filling", ievt, def->GetName())); |
337 | ifill = def->FillPair(fMiniEvent, fMiniEvent, &fValues); | |
6aaeb33c | 338 | break; |
339 | case AliRsnMiniOutput::kTrackPair: | |
0efb7042 | 340 | AliDebugClass(1, Form("Event %d, def '%s': pair-value histogram filling", ievt, def->GetName())); |
341 | ifill = def->FillPair(fMiniEvent, fMiniEvent, &fValues); | |
6aaeb33c | 342 | break; |
343 | case AliRsnMiniOutput::kTrackPairRotated1: | |
0efb7042 | 344 | AliDebugClass(1, Form("Event %d, def '%s': rotated (1) background histogram filling", ievt, def->GetName())); |
345 | ifill = def->FillPair(fMiniEvent, fMiniEvent, &fValues); | |
6aaeb33c | 346 | break; |
347 | case AliRsnMiniOutput::kTrackPairRotated2: | |
0efb7042 | 348 | AliDebugClass(1, Form("Event %d, def '%s': rotated (2) background histogram filling", ievt, def->GetName())); |
349 | ifill = def->FillPair(fMiniEvent, fMiniEvent, &fValues); | |
6aaeb33c | 350 | break; |
351 | default: | |
352 | // other kinds are processed elsewhere | |
45aa62b9 | 353 | ifill = 0; |
6aaeb33c | 354 | AliDebugClass(2, Form("Computation = %d", (Int_t)compType)); |
355 | } | |
45aa62b9 | 356 | // message |
357 | AliDebugClass(1, Form("Event %6d: def = '%15s' -- fills = %5d", ievt, def->GetName(), ifill)); | |
03d23846 | 358 | } |
359 | } | |
360 | ||
0efb7042 | 361 | // if no mixing is required, stop here and post the output |
362 | if (fNMix < 1) { | |
363 | AliDebugClass(2, "Stopping here, since no mixing is required"); | |
364 | PostData(1, fOutput); | |
365 | return; | |
366 | } | |
367 | ||
368 | // initialize mixing counter | |
369 | TString *matched = new TString[nEvents]; | |
370 | for (ievt = 0; ievt < nEvents; ievt++) { | |
371 | matched[ievt] = "|"; | |
372 | } | |
373 | ||
374 | // search for good matchings | |
375 | for (ievt = 0; ievt < nEvents; ievt++) { | |
376 | ifill = 0; | |
377 | fEvBuffer->GetEntry(ievt); | |
378 | AliRsnMiniEvent evMain(*fMiniEvent); | |
379 | for (iloop = 1; iloop < nEvents; iloop++) { | |
380 | imix = ievt + iloop; | |
381 | if (imix >= nEvents) imix -= nEvents; | |
382 | if (imix == ievt) continue; | |
383 | // text next entry | |
384 | fEvBuffer->GetEntry(imix); | |
385 | // skip if events are not matched | |
386 | if (TMath::Abs(evMain.Vz() - fMiniEvent->Vz() ) > fMaxDiffVz ) continue; | |
387 | if (TMath::Abs(evMain.Mult() - fMiniEvent->Mult() ) > fMaxDiffMult ) continue; | |
388 | if (TMath::Abs(evMain.Angle() - fMiniEvent->Angle()) > fMaxDiffAngle) continue; | |
389 | // check that the array of good matches for mixed does not already contain main event | |
390 | if (matched[imix].Contains(Form("|%d|", ievt))) continue; | |
391 | // add new mixing candidate | |
392 | matched[ievt].Append(Form("%d|", imix)); | |
393 | ifill++; | |
394 | if (ifill >= fNMix) break; | |
395 | } | |
7196ee4f | 396 | AliDebugClass(1, Form("Matches for event %5d = %s", ievt, matched[ievt].Data())); |
0efb7042 | 397 | } |
398 | ||
399 | // perform mixing | |
400 | TObjArray *list = 0x0; | |
401 | TObjString *os = 0x0; | |
402 | for (ievt = 0; ievt < nEvents; ievt++) { | |
403 | ifill = 0; | |
404 | fEvBuffer->GetEntry(ievt); | |
405 | AliRsnMiniEvent evMain(*fMiniEvent); | |
406 | list = matched[ievt].Tokenize("|"); | |
407 | TObjArrayIter next(list); | |
408 | while ( (os = (TObjString*)next()) ) { | |
409 | imix = os->GetString().Atoi(); | |
0efb7042 | 410 | fEvBuffer->GetEntry(imix); |
411 | for (idef = 0; idef < nDefs; idef++) { | |
412 | def = (AliRsnMiniOutput*)fHistograms[idef]; | |
413 | if (!def) continue; | |
414 | if (!def->IsTrackPairMix()) continue; | |
d573d2fb | 415 | ifill += def->FillPair(&evMain, fMiniEvent, &fValues, kTRUE); |
416 | if (!def->IsSymmetric()) ifill += def->FillPair(fMiniEvent, &evMain, &fValues, kFALSE); | |
0efb7042 | 417 | } |
418 | } | |
419 | delete list; | |
420 | } | |
421 | ||
422 | delete [] matched; | |
423 | ||
424 | /* | |
425 | OLD | |
426 | ifill = 0; | |
427 | for (iloop = 1; iloop < nEvents; iloop++) { | |
428 | imix = ievt + iloop; | |
429 | // restart from beginning if reached last event | |
430 | if (imix >= nEvents) imix -= nEvents; | |
431 | // avoid to mix an event with itself | |
432 | if (imix == ievt) continue; | |
433 | // skip all events already mixed enough times | |
434 | if (fNMixed[ievt] >= fNMix) break; | |
435 | if (fNMixed[imix] >= fNMix) continue; | |
436 | fEvBuffer->GetEntry(imix); | |
437 | // skip if events are not matched | |
438 | if (TMath::Abs(evMain.Vz() - fMiniEvent->Vz() ) > fMaxDiffVz ) continue; | |
439 | if (TMath::Abs(evMain.Mult() - fMiniEvent->Mult() ) > fMaxDiffMult ) continue; | |
440 | if (TMath::Abs(evMain.Angle() - fMiniEvent->Angle()) > fMaxDiffAngle) continue; | |
441 | // found a match: increment counter for both events | |
442 | AliDebugClass(1, Form("Event %d, def '%s': event mixing (%d with %d)", ievt, def->GetName(), ievt, imix)); | |
443 | fNMixed[ievt]++; | |
444 | fNMixed[imix]++; | |
445 | // process mixing | |
446 | ifill += def->FillPair(&evMain, fMiniEvent, &fValues); | |
447 | // stop if mixed enough times | |
448 | if (fNMixed[ievt] >= fNMix) break; | |
449 | } | |
450 | break; | |
6aaeb33c | 451 | // print number of mixings done with each event |
45aa62b9 | 452 | for (ievt = 0; ievt < nEvents; ievt++) { |
453 | AliDebugClass(2, Form("Event %6d: mixed %2d times", ievt, fNMixed[ievt])); | |
454 | } | |
0efb7042 | 455 | */ |
03d23846 | 456 | |
6aaeb33c | 457 | // post computed data |
03d23846 | 458 | PostData(1, fOutput); |
459 | } | |
460 | ||
461 | //__________________________________________________________________________________________________ | |
462 | void AliRsnMiniAnalysisTask::Terminate(Option_t *) | |
463 | { | |
464 | // | |
465 | // Draw result to screen, or perform fitting, normalizations | |
466 | // Called once at the end of the query | |
467 | // | |
468 | ||
469 | fOutput = dynamic_cast<TList*>(GetOutputData(1)); | |
470 | if (!fOutput) { | |
471 | AliError("Could not retrieve TList fOutput"); | |
472 | return; | |
473 | } | |
474 | } | |
475 | ||
476 | //__________________________________________________________________________________________________ | |
477 | Char_t AliRsnMiniAnalysisTask::CheckCurrentEvent() | |
478 | { | |
479 | // | |
c80938f5 | 480 | // This method checks if current event is OK for analysis. |
481 | // In case it is, the pointers of the local AliRsnEvent data member | |
482 | // will point to it, in order to allow cut checking, otherwise the | |
483 | // function exits with a failure message. | |
484 | // --- | |
485 | // ESD events must pass the physics selection, AOD are supposed to do. | |
486 | // --- | |
487 | // While checking the event, a histogram is filled to count the number | |
488 | // of CINT1B, V0AND and CANDLE events, which are needed for normalization | |
489 | // --- | |
490 | // Return values can be: | |
03d23846 | 491 | // -- 'E' if the event is accepted and is ESD |
492 | // -- 'A' if the event is accepted and is AOD | |
493 | // -- 0 if the event is not accepted | |
494 | // | |
495 | ||
496 | // string to sum messages | |
497 | TString msg(""); | |
498 | ||
499 | // check input type | |
c80938f5 | 500 | // exit points are provided in all cases an event is bad |
501 | // if this block is passed, an event can be rejected only | |
502 | // if it does not pass the set of event cuts defined in the task | |
03d23846 | 503 | Char_t output = 0; |
c80938f5 | 504 | Bool_t isSelected; |
505 | if (fInputEvent->InheritsFrom(AliESDEvent::Class())) { | |
506 | // type ESD | |
03d23846 | 507 | output = 'E'; |
c80938f5 | 508 | // ESD specific check: Physics Selection |
509 | // --> if this is failed, the event is rejected | |
510 | isSelected = (((AliInputEventHandler*)(AliAnalysisManager::GetAnalysisManager()->GetInputEventHandler()))->IsEventSelected() & AliVEvent::kMB); | |
511 | if (!isSelected) { | |
45aa62b9 | 512 | AliDebugClass(2, "Event does not pass physics selections"); |
c80938f5 | 513 | fRsnEvent.SetRef(0x0); |
514 | fRsnEvent.SetRefMC(0x0); | |
515 | return 0; | |
516 | } | |
517 | // set reference to input | |
518 | fRsnEvent.SetRef(fInputEvent); | |
519 | // add MC if requested and available | |
520 | if (fUseMC) { | |
521 | if (fMCEvent) | |
522 | fRsnEvent.SetRefMC(fMCEvent); | |
523 | else { | |
524 | AliWarning("MC event requested but not available"); | |
525 | fRsnEvent.SetRefMC(0x0); | |
526 | } | |
527 | } | |
528 | } else if (fInputEvent->InheritsFrom(AliAODEvent::Class())) { | |
529 | // type AOD | |
03d23846 | 530 | output = 'A'; |
c80938f5 | 531 | // set reference to input |
532 | fRsnEvent.SetRef(fInputEvent); | |
533 | // add MC if requested and available (it is in the same object) | |
534 | if (fUseMC) { | |
535 | fRsnEvent.SetRefMC(fInputEvent); | |
536 | if (!fRsnEvent.GetAODList()) { | |
537 | AliWarning("MC event requested but not available"); | |
538 | fRsnEvent.SetRefMC(0x0); | |
539 | } | |
540 | } | |
541 | } else { | |
03d23846 | 542 | AliError(Form("Bad input event class: %s", fInputEvent->ClassName())); |
c80938f5 | 543 | // reset pointers in local AliRsnEvent object |
544 | fRsnEvent.SetRef(0x0); | |
545 | fRsnEvent.SetRefMC(0x0); | |
03d23846 | 546 | return 0; |
547 | } | |
548 | ||
c80938f5 | 549 | // fill counter of accepted events |
550 | fHEventStat->Fill(0.1); | |
03d23846 | 551 | |
552 | // check if it is V0AND | |
c80938f5 | 553 | // --> uses a cast to AliESDEvent even if the input is an AliAODEvent |
03d23846 | 554 | Bool_t v0A = fTriggerAna->IsOfflineTriggerFired((AliESDEvent*)fInputEvent, AliTriggerAnalysis::kV0A); |
555 | Bool_t v0C = fTriggerAna->IsOfflineTriggerFired((AliESDEvent*)fInputEvent, AliTriggerAnalysis::kV0C); | |
556 | if (v0A && v0C) { | |
557 | msg += " -- VOAND = YES"; | |
558 | fHEventStat->Fill(1.1); | |
559 | } else { | |
560 | msg += " -- VOAND = NO "; | |
561 | } | |
562 | ||
563 | // check candle | |
c80938f5 | 564 | // --> requires at least one good quality track with Pt > 0.5 and |eta| <= 0.8 |
565 | Int_t iTrack, ntracksLoop = fInputEvent->GetNumberOfTracks(); | |
03d23846 | 566 | Bool_t candle = kFALSE; |
c80938f5 | 567 | for (iTrack = 0; iTrack < ntracksLoop; iTrack++) { |
03d23846 | 568 | AliVTrack *track = (AliVTrack*)fInputEvent->GetTrack(iTrack); |
569 | AliESDtrack *esdt = dynamic_cast<AliESDtrack*>(track); | |
570 | AliAODTrack *aodt = dynamic_cast<AliAODTrack*>(track); | |
03d23846 | 571 | if (track->Pt() < 0.5) continue; |
572 | if(TMath::Abs(track->Eta()) > 0.8) continue; | |
c80938f5 | 573 | if (esdt) if (!fESDtrackCuts->AcceptTrack(esdt)) continue; |
574 | if (aodt) if (!aodt->TestFilterBit(5)) continue; | |
03d23846 | 575 | candle = kTRUE; |
576 | break; | |
577 | } | |
578 | if (candle) { | |
579 | msg += " -- CANDLE = YES"; | |
580 | fHEventStat->Fill(2.1); | |
581 | } else { | |
582 | msg += " -- CANDLE = NO "; | |
583 | } | |
584 | ||
c80938f5 | 585 | // if event cuts are defined, they are checked here |
586 | // final decision on the event depends on this | |
587 | isSelected = kTRUE; | |
03d23846 | 588 | if (fEventCuts) { |
589 | if (!fEventCuts->IsSelected(&fRsnEvent)) { | |
590 | msg += " -- Local cuts = REJECTED"; | |
c80938f5 | 591 | isSelected = kFALSE; |
03d23846 | 592 | } else { |
593 | msg += " -- Local cuts = ACCEPTED"; | |
c80938f5 | 594 | isSelected = kTRUE; |
03d23846 | 595 | } |
596 | } else { | |
597 | msg += " -- Local cuts = NONE"; | |
c80938f5 | 598 | isSelected = kTRUE; |
03d23846 | 599 | } |
600 | ||
601 | // if the above exit point is not taken, the event is accepted | |
45aa62b9 | 602 | AliDebugClass(2, Form("Stats for event %d: %s", fEvNum, msg.Data())); |
c80938f5 | 603 | if (isSelected) { |
604 | fHEventStat->Fill(3.1); | |
605 | return output; | |
606 | } else { | |
607 | return 0; | |
608 | } | |
03d23846 | 609 | } |
610 | ||
6aaeb33c | 611 | //__________________________________________________________________________________________________ |
45aa62b9 | 612 | void AliRsnMiniAnalysisTask::FillMiniEvent(Char_t evType) |
6aaeb33c | 613 | { |
614 | // | |
615 | // Refresh cursor mini-event data member to fill with current event. | |
616 | // Returns the total number of tracks selected. | |
617 | // | |
618 | ||
619 | // assign event-related values | |
45aa62b9 | 620 | if (fMiniEvent) delete fMiniEvent; |
6aaeb33c | 621 | fMiniEvent = new AliRsnMiniEvent; |
45aa62b9 | 622 | fMiniEvent->ID() = fEvNum; |
6aaeb33c | 623 | fMiniEvent->Vz() = fInputEvent->GetPrimaryVertex()->GetZ(); |
624 | fMiniEvent->Angle() = ComputeAngle(); | |
625 | fMiniEvent->Mult() = ComputeCentrality((evType == 'E')); | |
45aa62b9 | 626 | AliDebugClass(2, Form("Event %d: type = %c -- vz = %f -- mult = %f -- angle = %f", fEvNum, evType, fMiniEvent->Vz(), fMiniEvent->Mult(), fMiniEvent->Angle())); |
6aaeb33c | 627 | |
628 | // loop on daughters and assign track-related values | |
629 | Int_t ic, ncuts = fTrackCuts.GetEntries(); | |
630 | Int_t ip, npart = fRsnEvent.GetAbsoluteSum(); | |
45aa62b9 | 631 | Int_t npos = 0, nneg = 0, nneu = 0; |
6aaeb33c | 632 | AliRsnDaughter cursor; |
633 | AliRsnMiniParticle miniParticle; | |
634 | for (ip = 0; ip < npart; ip++) { | |
635 | // point cursor to next particle | |
636 | fRsnEvent.SetDaughter(cursor, ip); | |
637 | // copy momentum and MC info if present | |
638 | miniParticle.CopyDaughter(&cursor); | |
45aa62b9 | 639 | miniParticle.Index() = ip; |
6aaeb33c | 640 | // switch on the bits corresponding to passed cuts |
641 | for (ic = 0; ic < ncuts; ic++) { | |
642 | AliRsnCutSet *cuts = (AliRsnCutSet*)fTrackCuts[ic]; | |
643 | if (cuts->IsSelected(&cursor)) miniParticle.SetCutBit(ic); | |
644 | } | |
645 | // if a track passes at least one track cut, it is added to the pool | |
45aa62b9 | 646 | if (miniParticle.CutBits()) { |
647 | fMiniEvent->AddParticle(miniParticle); | |
648 | if (miniParticle.Charge() == '+') npos++; | |
649 | else if (miniParticle.Charge() == '-') nneg++; | |
650 | else nneu++; | |
651 | } | |
6aaeb33c | 652 | } |
653 | ||
654 | // get number of accepted tracks | |
45aa62b9 | 655 | AliDebugClass(1, Form("Event %6d: total = %5d, accepted = %4d (pos %4d, neg %4d, neu %4d)", fEvNum, npart, (Int_t)fMiniEvent->Particles().GetEntriesFast(), npos, nneg, nneu)); |
6aaeb33c | 656 | } |
657 | ||
3dced4f8 | 658 | //__________________________________________________________________________________________________ |
659 | Double_t AliRsnMiniAnalysisTask::ComputeAngle() | |
660 | { | |
661 | // | |
662 | // Get the plane angle | |
663 | // | |
664 | ||
665 | AliEventplane *plane = fInputEvent->GetEventplane(); | |
666 | if (plane) | |
667 | return plane->GetEventplane("Q"); | |
668 | else { | |
669 | AliWarning("No event plane defined"); | |
670 | return 1E20; | |
671 | } | |
672 | } | |
673 | ||
03d23846 | 674 | //__________________________________________________________________________________________________ |
675 | Double_t AliRsnMiniAnalysisTask::ComputeCentrality(Bool_t isESD) | |
676 | { | |
677 | // | |
678 | // Computes event centrality/multiplicity according to the criterion defined | |
679 | // by two elements: (1) choice between multiplicity and centrality and | |
680 | // (2) the string defining what criterion must be used for specific computation. | |
681 | // | |
682 | ||
683 | if (fUseCentrality) { | |
684 | AliCentrality *centrality = fInputEvent->GetCentrality(); | |
685 | if (!centrality) { | |
686 | AliError("Cannot compute centrality!"); | |
687 | return -1.0; | |
688 | } | |
689 | return centrality->GetCentralityPercentile(fCentralityType.Data()); | |
690 | } else { | |
03d23846 | 691 | if (!fCentralityType.CompareTo("TRACKS")) |
692 | return fInputEvent->GetNumberOfTracks(); | |
693 | else if (!fCentralityType.CompareTo("QUALITY")) | |
c80938f5 | 694 | if (isESD) |
695 | return AliESDtrackCuts::GetReferenceMultiplicity((AliESDEvent*)fInputEvent, kTRUE); | |
696 | else { | |
697 | Double_t count = 0.; | |
698 | Int_t iTrack, ntracksLoop = fInputEvent->GetNumberOfTracks(); | |
699 | for (iTrack = 0; iTrack < ntracksLoop; iTrack++) { | |
700 | AliVTrack *track = (AliVTrack*)fInputEvent->GetTrack(iTrack); | |
701 | AliAODTrack *aodt = dynamic_cast<AliAODTrack*>(track); | |
702 | if (!aodt) continue; | |
703 | if (!aodt->TestFilterBit(5)) continue; | |
704 | count++; | |
705 | } | |
706 | return count; | |
707 | } | |
03d23846 | 708 | else if (!fCentralityType.CompareTo("TRACKLETS")) { |
c80938f5 | 709 | if (isESD) { |
710 | const AliMultiplicity *mult = ((AliESDEvent*)fInputEvent)->GetMultiplicity(); | |
711 | Float_t nClusters[6] = {0.0,0.0,0.0,0.0,0.0,0.0}; | |
712 | for(Int_t ilay = 0; ilay < 6; ilay++) nClusters[ilay] = (Float_t)mult->GetNumberOfITSClusters(ilay); | |
713 | return AliESDUtils::GetCorrSPD2(nClusters[1], fInputEvent->GetPrimaryVertex()->GetZ()); | |
714 | } else { | |
715 | AliWarning("Cannot compute multiplicity with SPD tracklets from AOD"); | |
716 | return 1E20; | |
717 | } | |
03d23846 | 718 | } else { |
719 | AliError(Form("String '%s' does not define a possible multiplicity/centrality computation", fCentralityType.Data())); | |
720 | return -1.0; | |
721 | } | |
722 | } | |
723 | } | |
724 | ||
725 | //__________________________________________________________________________________________________ | |
726 | void AliRsnMiniAnalysisTask::FillTrueMotherESD(AliRsnMiniEvent *miniEvent) | |
727 | { | |
728 | // | |
729 | // Fills the histograms with true mother (ESD version) | |
730 | // | |
731 | ||
732 | Bool_t okMatch; | |
733 | Int_t id, ndef = fHistograms.GetEntries(); | |
734 | Int_t ip, label1, label2, npart = fMCEvent->GetNumberOfTracks(); | |
735 | static AliRsnMiniPair miniPair; | |
736 | AliMCParticle *daughter1, *daughter2; | |
737 | TLorentzVector p1, p2; | |
738 | AliRsnMiniOutput *def = 0x0; | |
739 | ||
740 | for (id = 0; id < ndef; id++) { | |
741 | def = (AliRsnMiniOutput*)fHistograms[id]; | |
742 | if (!def) continue; | |
743 | if (!def->IsMother()) continue; | |
744 | for (ip = 0; ip < npart; ip++) { | |
745 | AliMCParticle *part = (AliMCParticle*)fMCEvent->GetTrack(ip); | |
746 | if (TMath::Abs(part->Particle()->GetPdgCode()) != def->GetMotherPDG()) continue; | |
747 | // check that daughters match expected species | |
748 | if (part->Particle()->GetNDaughters() < 2) continue; | |
749 | label1 = part->Particle()->GetDaughter(0); | |
750 | label2 = part->Particle()->GetDaughter(1); | |
751 | daughter1 = (AliMCParticle*)fMCEvent->GetTrack(label1); | |
752 | daughter2 = (AliMCParticle*)fMCEvent->GetTrack(label2); | |
753 | okMatch = kFALSE; | |
754 | if (TMath::Abs(daughter1->Particle()->GetPdgCode()) == def->GetPDG(0) && TMath::Abs(daughter2->Particle()->GetPdgCode()) == def->GetPDG(1)) { | |
755 | okMatch = kTRUE; | |
756 | p1.SetXYZM(daughter1->Px(), daughter1->Py(), daughter1->Pz(), def->GetMass(0)); | |
757 | p2.SetXYZM(daughter2->Px(), daughter2->Py(), daughter2->Pz(), def->GetMass(1)); | |
758 | } else if (TMath::Abs(daughter1->Particle()->GetPdgCode()) == def->GetPDG(1) && TMath::Abs(daughter2->Particle()->GetPdgCode()) == def->GetPDG(0)) { | |
759 | okMatch = kTRUE; | |
760 | p1.SetXYZM(daughter1->Px(), daughter1->Py(), daughter1->Pz(), def->GetMass(1)); | |
761 | p2.SetXYZM(daughter2->Px(), daughter2->Py(), daughter2->Pz(), def->GetMass(0)); | |
762 | } | |
763 | if (!okMatch) continue; | |
764 | // assign momenta to computation object | |
765 | miniPair.Sum(0) = miniPair.Sum(1) = (p1 + p2); | |
766 | miniPair.FillRef(def->GetMotherMass()); | |
767 | // do computations | |
45aa62b9 | 768 | def->FillMother(&miniPair, miniEvent, &fValues); |
03d23846 | 769 | } |
770 | } | |
771 | } | |
772 | ||
773 | //__________________________________________________________________________________________________ | |
774 | void AliRsnMiniAnalysisTask::FillTrueMotherAOD(AliRsnMiniEvent *miniEvent) | |
775 | { | |
776 | // | |
777 | // Fills the histograms with true mother (AOD version) | |
778 | // | |
779 | ||
780 | Bool_t okMatch; | |
781 | TClonesArray *list = fRsnEvent.GetAODList(); | |
782 | Int_t id, ndef = fHistograms.GetEntries(); | |
783 | Int_t ip, label1, label2, npart = list->GetEntries(); | |
784 | static AliRsnMiniPair miniPair; | |
785 | AliAODMCParticle *daughter1, *daughter2; | |
786 | TLorentzVector p1, p2; | |
787 | AliRsnMiniOutput *def = 0x0; | |
788 | ||
789 | for (id = 0; id < ndef; id++) { | |
790 | def = (AliRsnMiniOutput*)fHistograms[id]; | |
791 | if (!def) continue; | |
792 | if (!def->IsMother()) continue; | |
793 | for (ip = 0; ip < npart; ip++) { | |
794 | AliAODMCParticle *part = (AliAODMCParticle*)list->At(ip); | |
795 | if (TMath::Abs(part->GetPdgCode()) != def->GetMotherPDG()) continue; | |
796 | // check that daughters match expected species | |
797 | if (part->GetNDaughters() < 2) continue; | |
798 | label1 = part->GetDaughter(0); | |
799 | label2 = part->GetDaughter(1); | |
800 | daughter1 = (AliAODMCParticle*)list->At(label1); | |
801 | daughter2 = (AliAODMCParticle*)list->At(label2); | |
802 | okMatch = kFALSE; | |
803 | if (TMath::Abs(daughter1->GetPdgCode()) == def->GetPDG(0) && TMath::Abs(daughter2->GetPdgCode()) == def->GetPDG(1)) { | |
804 | okMatch = kTRUE; | |
805 | p1.SetXYZM(daughter1->Px(), daughter1->Py(), daughter1->Pz(), def->GetMass(0)); | |
806 | p2.SetXYZM(daughter2->Px(), daughter2->Py(), daughter2->Pz(), def->GetMass(1)); | |
807 | } else if (TMath::Abs(daughter1->GetPdgCode()) == def->GetPDG(1) && TMath::Abs(daughter2->GetPdgCode()) == def->GetPDG(0)) { | |
808 | okMatch = kTRUE; | |
809 | p1.SetXYZM(daughter1->Px(), daughter1->Py(), daughter1->Pz(), def->GetMass(1)); | |
810 | p2.SetXYZM(daughter2->Px(), daughter2->Py(), daughter2->Pz(), def->GetMass(0)); | |
811 | } | |
812 | if (!okMatch) continue; | |
813 | // assign momenta to computation object | |
814 | miniPair.Sum(0) = miniPair.Sum(1) = (p1 + p2); | |
815 | miniPair.FillRef(def->GetMotherMass()); | |
816 | // do computations | |
45aa62b9 | 817 | def->FillMother(&miniPair, miniEvent, &fValues); |
03d23846 | 818 | } |
819 | } | |
820 | } |