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Commit | Line | Data |
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7984e5f7 | 1 | // |
2 | // Calculate the multiplicity in the forward regions event-by-event | |
3 | // | |
4 | // Inputs: | |
5 | // - AliESDEvent | |
6 | // - Kinematics | |
7 | // - Track references | |
8 | // | |
9 | // Outputs: | |
10 | // - AliAODForwardMult | |
11 | // | |
12 | // Histograms | |
13 | // | |
14 | // Corrections used | |
15 | // | |
285e7b27 | 16 | #include "AliForwardMCMultiplicityTask.h" |
17 | #include "AliTriggerAnalysis.h" | |
18 | #include "AliPhysicsSelection.h" | |
19 | #include "AliLog.h" | |
285e7b27 | 20 | #include "AliESDEvent.h" |
21 | #include "AliAODHandler.h" | |
22 | #include "AliMultiplicity.h" | |
23 | #include "AliInputEventHandler.h" | |
24 | #include "AliForwardCorrectionManager.h" | |
25 | #include "AliAnalysisManager.h" | |
26 | #include <TH1.h> | |
27 | #include <TDirectory.h> | |
28 | #include <TTree.h> | |
29 | #include <TROOT.h> | |
285e7b27 | 30 | |
31 | //==================================================================== | |
32 | AliForwardMCMultiplicityTask::AliForwardMCMultiplicityTask() | |
33 | : AliForwardMultiplicityBase(), | |
34 | fHData(0), | |
35 | fESDFMD(), | |
36 | fHistos(), | |
37 | fAODFMD(), | |
38 | fMCESDFMD(), | |
39 | fMCHistos(), | |
40 | fMCAODFMD(), | |
4cbdf467 | 41 | fPrimary(0), |
285e7b27 | 42 | fEventInspector(), |
43 | fEnergyFitter(), | |
44 | fSharingFilter(), | |
45 | fDensityCalculator(), | |
46 | fCorrections(), | |
47 | fHistCollector(), | |
48 | fList(0) | |
49 | { | |
7984e5f7 | 50 | // |
51 | // Constructor | |
52 | // | |
285e7b27 | 53 | } |
54 | ||
55 | //____________________________________________________________________ | |
56 | AliForwardMCMultiplicityTask::AliForwardMCMultiplicityTask(const char* name) | |
57 | : AliForwardMultiplicityBase(name), | |
58 | fHData(0), | |
59 | fESDFMD(), | |
60 | fHistos(), | |
61 | fAODFMD(kFALSE), | |
62 | fMCESDFMD(), | |
63 | fMCHistos(), | |
64 | fMCAODFMD(kTRUE), | |
4cbdf467 | 65 | fPrimary(0), |
285e7b27 | 66 | fEventInspector("event"), |
67 | fEnergyFitter("energy"), | |
68 | fSharingFilter("sharing"), | |
69 | fDensityCalculator("density"), | |
70 | fCorrections("corrections"), | |
71 | fHistCollector("collector"), | |
72 | fList(0) | |
73 | { | |
7984e5f7 | 74 | // |
75 | // Constructor | |
76 | // | |
77 | // Parameters: | |
78 | // name Name of task | |
79 | // | |
285e7b27 | 80 | DefineOutput(1, TList::Class()); |
81 | } | |
82 | ||
83 | //____________________________________________________________________ | |
84 | AliForwardMCMultiplicityTask::AliForwardMCMultiplicityTask(const AliForwardMCMultiplicityTask& o) | |
85 | : AliForwardMultiplicityBase(o), | |
86 | fHData(o.fHData), | |
87 | fESDFMD(o.fESDFMD), | |
88 | fHistos(o.fHistos), | |
89 | fAODFMD(o.fAODFMD), | |
90 | fMCESDFMD(o.fMCESDFMD), | |
91 | fMCHistos(o.fMCHistos), | |
92 | fMCAODFMD(o.fMCAODFMD), | |
4cbdf467 | 93 | fPrimary(o.fPrimary), |
285e7b27 | 94 | fEventInspector(o.fEventInspector), |
95 | fEnergyFitter(o.fEnergyFitter), | |
4cbdf467 | 96 | fSharingFilter(o.fSharingFilter), |
285e7b27 | 97 | fDensityCalculator(o.fDensityCalculator), |
98 | fCorrections(o.fCorrections), | |
99 | fHistCollector(o.fHistCollector), | |
100 | fList(o.fList) | |
101 | { | |
7984e5f7 | 102 | // |
103 | // Copy constructor | |
104 | // | |
105 | // Parameters: | |
106 | // o Object to copy from | |
107 | // | |
285e7b27 | 108 | DefineOutput(1, TList::Class()); |
109 | } | |
110 | ||
111 | //____________________________________________________________________ | |
112 | AliForwardMCMultiplicityTask& | |
113 | AliForwardMCMultiplicityTask::operator=(const AliForwardMCMultiplicityTask& o) | |
114 | { | |
7984e5f7 | 115 | // |
116 | // Assignment operator | |
117 | // | |
118 | // Parameters: | |
119 | // o Object to assign from | |
120 | // | |
121 | // Return: | |
122 | // Reference to this object | |
123 | // | |
285e7b27 | 124 | AliForwardMultiplicityBase::operator=(o); |
125 | ||
126 | fHData = o.fHData; | |
127 | fEventInspector = o.fEventInspector; | |
128 | fEnergyFitter = o.fEnergyFitter; | |
129 | fSharingFilter = o.fSharingFilter; | |
130 | fDensityCalculator = o.fDensityCalculator; | |
131 | fCorrections = o.fCorrections; | |
132 | fHistCollector = o.fHistCollector; | |
133 | fHistos = o.fHistos; | |
134 | fAODFMD = o.fAODFMD; | |
135 | fMCHistos = o.fMCHistos; | |
136 | fMCAODFMD = o.fMCAODFMD; | |
4cbdf467 | 137 | fPrimary = o.fPrimary; |
285e7b27 | 138 | fList = o.fList; |
139 | ||
140 | return *this; | |
141 | } | |
142 | ||
143 | //____________________________________________________________________ | |
144 | void | |
145 | AliForwardMCMultiplicityTask::SetDebug(Int_t dbg) | |
146 | { | |
7984e5f7 | 147 | // |
148 | // Set debug level | |
149 | // | |
150 | // Parameters: | |
151 | // dbg debug level | |
152 | // | |
285e7b27 | 153 | fEventInspector.SetDebug(dbg); |
154 | fEnergyFitter.SetDebug(dbg); | |
155 | fSharingFilter.SetDebug(dbg); | |
156 | fDensityCalculator.SetDebug(dbg); | |
157 | fCorrections.SetDebug(dbg); | |
158 | fHistCollector.SetDebug(dbg); | |
159 | } | |
160 | //____________________________________________________________________ | |
161 | void | |
162 | AliForwardMCMultiplicityTask::InitializeSubs() | |
163 | { | |
7984e5f7 | 164 | // |
165 | // Initialise the sub objects and stuff. Called on first event | |
166 | // | |
167 | // | |
7ec4d843 | 168 | const TAxis* pe = 0; |
169 | const TAxis* pv = 0; | |
1174780f | 170 | |
19abe41d | 171 | if (!ReadCorrections(pe,pv,true)) return; |
285e7b27 | 172 | |
173 | fHistos.Init(*pe); | |
174 | fAODFMD.Init(*pe); | |
175 | fMCHistos.Init(*pe); | |
176 | fMCAODFMD.Init(*pe); | |
177 | ||
178 | fHData = static_cast<TH2D*>(fAODFMD.GetHistogram().Clone("d2Ndetadphi")); | |
179 | fHData->SetStats(0); | |
180 | fHData->SetDirectory(0); | |
4cbdf467 | 181 | |
285e7b27 | 182 | fList->Add(fHData); |
183 | ||
184 | fEnergyFitter.Init(*pe); | |
185 | fEventInspector.Init(*pv); | |
186 | fDensityCalculator.Init(*pe); | |
187 | fCorrections.Init(*pe); | |
12fffad7 | 188 | fHistCollector.Init(*pv,*pe); |
285e7b27 | 189 | |
190 | this->Print(); | |
191 | } | |
192 | ||
193 | //____________________________________________________________________ | |
194 | void | |
195 | AliForwardMCMultiplicityTask::UserCreateOutputObjects() | |
196 | { | |
7984e5f7 | 197 | // |
198 | // Create output objects | |
199 | // | |
200 | // | |
285e7b27 | 201 | fList = new TList; |
e1f47419 | 202 | fList->SetOwner(); |
285e7b27 | 203 | |
204 | AliAnalysisManager* am = AliAnalysisManager::GetAnalysisManager(); | |
205 | AliAODHandler* ah = | |
206 | dynamic_cast<AliAODHandler*>(am->GetOutputEventHandler()); | |
207 | if (!ah) AliFatal("No AOD output handler set in analysis manager"); | |
208 | ||
209 | ||
210 | TObject* obj = &fAODFMD; | |
211 | ah->AddBranch("AliAODForwardMult", &obj); | |
212 | ||
213 | TObject* mcobj = &fMCAODFMD; | |
214 | ah->AddBranch("AliAODForwardMult", &mcobj); | |
215 | ||
4cbdf467 | 216 | fPrimary = new TH2D("primary", "MC Primaries", |
217 | 200, -4, 6, 20, 0, 2*TMath::Pi()); | |
218 | fPrimary->SetXTitle("#eta"); | |
219 | fPrimary->SetYTitle("#varphi [radians]"); | |
220 | fPrimary->SetZTitle("d^{2}N_{ch}/d#etad#phi"); | |
221 | fPrimary->Sumw2(); | |
222 | fPrimary->SetStats(0); | |
223 | fPrimary->SetDirectory(0); | |
224 | ah->AddBranch("TH2D", &fPrimary); | |
225 | ||
285e7b27 | 226 | fEventInspector.DefineOutput(fList); |
227 | fEnergyFitter.DefineOutput(fList); | |
228 | fSharingFilter.DefineOutput(fList); | |
229 | fDensityCalculator.DefineOutput(fList); | |
230 | fCorrections.DefineOutput(fList); | |
12fffad7 | 231 | fHistCollector.DefineOutput(fList); |
285e7b27 | 232 | |
233 | PostData(1, fList); | |
234 | } | |
235 | //____________________________________________________________________ | |
236 | void | |
237 | AliForwardMCMultiplicityTask::UserExec(Option_t*) | |
238 | { | |
7984e5f7 | 239 | // |
240 | // Process each event | |
241 | // | |
242 | // Parameters: | |
243 | // option Not used | |
244 | // | |
245 | ||
285e7b27 | 246 | // Get the input data |
e1f47419 | 247 | AliESDEvent* esd = GetESDEvent(); |
248 | AliMCEvent* mcEvent = MCEvent(); | |
285e7b27 | 249 | |
285e7b27 | 250 | // Clear stuff |
251 | fHistos.Clear(); | |
252 | fESDFMD.Clear(); | |
253 | fAODFMD.Clear(); | |
254 | fMCHistos.Clear(); | |
255 | fMCESDFMD.Clear(); | |
256 | fMCAODFMD.Clear(); | |
4cbdf467 | 257 | fPrimary->Reset(); |
285e7b27 | 258 | |
259 | Bool_t lowFlux = kFALSE; | |
260 | UInt_t triggers = 0; | |
261 | UShort_t ivz = 0; | |
262 | Double_t vz = 0; | |
5e4d905e | 263 | Double_t cent = 0; |
264 | UInt_t found = fEventInspector.Process(esd, triggers, lowFlux, | |
265 | ivz, vz, cent); | |
e1f47419 | 266 | UShort_t ivzMC = 0; |
267 | Double_t vzMC = 0; | |
268 | Double_t phiR = 0; | |
269 | Double_t b = 0; | |
e308a636 | 270 | Int_t npart = 0; |
271 | Int_t nbin = 0; | |
e1f47419 | 272 | // UInt_t foundMC = |
e308a636 | 273 | fEventInspector.ProcessMC(mcEvent, triggers, ivzMC, vzMC, b, |
274 | npart, nbin, phiR); | |
275 | fEventInspector.CompareResults(vz, vzMC, cent, b, npart, nbin); | |
1dbfc345 | 276 | |
e333578d | 277 | //Store all events |
148c39de | 278 | MarkEventForStore(); |
e333578d | 279 | |
280 | Bool_t isAccepted = true; | |
281 | if (found & AliFMDEventInspector::kNoEvent) isAccepted = false; // return; | |
282 | if (found & AliFMDEventInspector::kNoTriggers) isAccepted = false; // return; | |
148c39de | 283 | //MarkEventForStore(); |
b30dee70 | 284 | // Always set the B trigger - each MC event _is_ a collision |
285 | triggers |= AliAODForwardMult::kB; | |
285e7b27 | 286 | // Set trigger bits, and mark this event for storage |
287 | fAODFMD.SetTriggerBits(triggers); | |
e308a636 | 288 | fAODFMD.SetSNN(fEventInspector.GetEnergy()); |
289 | fAODFMD.SetSystem(fEventInspector.GetCollisionSystem()); | |
e58000b7 | 290 | fAODFMD.SetCentrality(cent); |
e308a636 | 291 | |
292 | fMCAODFMD.SetTriggerBits(triggers); | |
293 | fMCAODFMD.SetSNN(fEventInspector.GetEnergy()); | |
294 | fMCAODFMD.SetSystem(fEventInspector.GetCollisionSystem()); | |
295 | fMCAODFMD.SetCentrality(cent); | |
e58000b7 | 296 | |
e333578d | 297 | //All events should be stored - HHD |
148c39de | 298 | //if (isAccepted) MarkEventForStore(); |
285e7b27 | 299 | |
e1f47419 | 300 | // Disable this check on SPD - will bias data |
301 | // if (found & AliFMDEventInspector::kNoSPD) isAccepted = false; // return; | |
e333578d | 302 | if (found & AliFMDEventInspector::kNoFMD) isAccepted = false; // return; |
303 | if (found & AliFMDEventInspector::kNoVertex) isAccepted = false; // return; | |
304 | ||
305 | if (isAccepted) { | |
306 | fAODFMD.SetIpZ(vz); | |
307 | fMCAODFMD.SetIpZ(vz); | |
308 | } | |
309 | if (found & AliFMDEventInspector::kBadVertex) isAccepted = false; // return; | |
285e7b27 | 310 | |
311 | // We we do not want to use low flux specific code, we disable it here. | |
312 | if (!fEnableLowFlux) lowFlux = false; | |
148c39de | 313 | |
314 | ||
285e7b27 | 315 | |
316 | // Get FMD data | |
317 | AliESDFMD* esdFMD = esd->GetFMDData(); | |
e1f47419 | 318 | |
285e7b27 | 319 | // Apply the sharing filter (or hit merging or clustering if you like) |
e333578d | 320 | if (isAccepted && !fSharingFilter.Filter(*esdFMD, lowFlux, fESDFMD)) { |
285e7b27 | 321 | AliWarning("Sharing filter failed!"); |
322 | return; | |
323 | } | |
4cbdf467 | 324 | if (!fSharingFilter.FilterMC(*esdFMD, *mcEvent, vz, fMCESDFMD, fPrimary)) { |
285e7b27 | 325 | AliWarning("MC Sharing filter failed!"); |
326 | return; | |
327 | } | |
e333578d | 328 | if (!isAccepted) return; // Exit on MC event w/o trigger, vertex, data |
148c39de | 329 | // HHD if (!isAccepted) return; // Exit on MC event w/o trigger, vertex, data |
1dbfc345 | 330 | |
148c39de | 331 | //MarkEventForStore(); |
285e7b27 | 332 | fSharingFilter.CompareResults(fESDFMD, fMCESDFMD); |
333 | ||
334 | // Do the energy stuff | |
5e4d905e | 335 | if (!fEnergyFitter.Accumulate(*esdFMD, cent, |
336 | triggers & AliAODForwardMult::kEmpty)){ | |
285e7b27 | 337 | AliWarning("Energy fitter failed"); |
338 | return; | |
339 | } | |
340 | ||
341 | // Calculate the inclusive charged particle density | |
342 | if (!fDensityCalculator.Calculate(fESDFMD, fHistos, ivz, lowFlux)) { | |
343 | AliWarning("Density calculator failed!"); | |
344 | return; | |
345 | } | |
346 | if (!fDensityCalculator.CalculateMC(fMCESDFMD, fMCHistos)) { | |
347 | AliWarning("MC Density calculator failed!"); | |
348 | return; | |
349 | } | |
350 | fDensityCalculator.CompareResults(fHistos, fMCHistos); | |
351 | ||
352 | // Do the secondary and other corrections. | |
353 | if (!fCorrections.Correct(fHistos, ivz)) { | |
354 | AliWarning("Corrections failed"); | |
355 | return; | |
356 | } | |
357 | if (!fCorrections.CorrectMC(fMCHistos, ivz)) { | |
358 | AliWarning("MC Corrections failed"); | |
359 | return; | |
360 | } | |
361 | fCorrections.CompareResults(fHistos, fMCHistos); | |
362 | ||
363 | if (!fHistCollector.Collect(fHistos, ivz, fAODFMD.GetHistogram())) { | |
364 | AliWarning("Histogram collector failed"); | |
365 | return; | |
366 | } | |
367 | if (!fHistCollector.Collect(fMCHistos, ivz, fMCAODFMD.GetHistogram())) { | |
368 | AliWarning("MC Histogram collector failed"); | |
369 | return; | |
370 | } | |
371 | ||
372 | if (fAODFMD.IsTriggerBits(AliAODForwardMult::kInel)) | |
373 | fHData->Add(&(fAODFMD.GetHistogram())); | |
374 | ||
375 | PostData(1, fList); | |
376 | } | |
377 | ||
378 | //____________________________________________________________________ | |
379 | void | |
380 | AliForwardMCMultiplicityTask::Terminate(Option_t*) | |
381 | { | |
7984e5f7 | 382 | // |
383 | // End of job | |
384 | // | |
385 | // Parameters: | |
386 | // option Not used | |
387 | // | |
285e7b27 | 388 | TList* list = dynamic_cast<TList*>(GetOutputData(1)); |
389 | if (!list) { | |
390 | AliError(Form("No output list defined (%p)", GetOutputData(1))); | |
391 | if (GetOutputData(1)) GetOutputData(1)->Print(); | |
392 | return; | |
393 | } | |
394 | ||
395 | // Get our histograms from the container | |
396 | TH1I* hEventsTr = 0; | |
397 | TH1I* hEventsTrVtx = 0; | |
398 | TH1I* hTriggers = 0; | |
399 | if (!fEventInspector.FetchHistograms(list, hEventsTr, | |
400 | hEventsTrVtx, hTriggers)) { | |
401 | AliError(Form("Didn't get histograms from event selector " | |
402 | "(hEventsTr=%p,hEventsTrVtx=%p)", | |
403 | hEventsTr, hEventsTrVtx)); | |
404 | list->ls(); | |
405 | return; | |
406 | } | |
407 | ||
408 | TH2D* hData = static_cast<TH2D*>(list->FindObject("d2Ndetadphi")); | |
409 | if (!hData) { | |
410 | AliError(Form("Couldn't get our summed histogram from output " | |
411 | "list %s (d2Ndetadphi=%p)", list->GetName(), hData)); | |
412 | list->ls(); | |
413 | return; | |
414 | } | |
415 | ||
416 | // TH1D* dNdeta = fHData->ProjectionX("dNdeta", 0, -1, "e"); | |
417 | TH1D* dNdeta = hData->ProjectionX("dNdeta", 1, -1, "e"); | |
418 | TH1D* norm = hData->ProjectionX("norm", 0, 1, ""); | |
419 | dNdeta->SetTitle("dN_{ch}/d#eta in the forward regions"); | |
420 | dNdeta->SetYTitle("#frac{1}{N}#frac{dN_{ch}}{d#eta}"); | |
421 | dNdeta->Divide(norm); | |
422 | dNdeta->SetStats(0); | |
423 | dNdeta->Scale(Double_t(hEventsTrVtx->GetEntries())/hEventsTr->GetEntries(), | |
424 | "width"); | |
425 | list->Add(dNdeta); | |
426 | list->Add(norm); | |
427 | ||
428 | fEnergyFitter.Fit(list); | |
6feacd76 | 429 | fSharingFilter.ScaleHistograms(list,Int_t(hEventsTr->Integral())); |
430 | fDensityCalculator.ScaleHistograms(list,Int_t(hEventsTrVtx->Integral())); | |
431 | fCorrections.ScaleHistograms(list,Int_t(hEventsTrVtx->Integral())); | |
285e7b27 | 432 | } |
433 | ||
285e7b27 | 434 | |
435 | // | |
436 | // EOF | |
437 | // |