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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 | // | |
7 | // Outputs: | |
8 | // - AliAODForwardMult | |
9 | // | |
10 | // Histograms | |
11 | // | |
12 | // Corrections used | |
13 | // | |
0bd4b00f | 14 | #include "AliForwardMultiplicityTask.h" |
7e4038b5 | 15 | #include "AliTriggerAnalysis.h" |
16 | #include "AliPhysicsSelection.h" | |
17 | #include "AliLog.h" | |
7e4038b5 | 18 | #include "AliESDEvent.h" |
19 | #include "AliAODHandler.h" | |
20 | #include "AliMultiplicity.h" | |
21 | #include "AliInputEventHandler.h" | |
0bd4b00f | 22 | #include "AliForwardCorrectionManager.h" |
23 | #include "AliAnalysisManager.h" | |
7e4038b5 | 24 | #include <TH1.h> |
25 | #include <TDirectory.h> | |
26 | #include <TTree.h> | |
0bd4b00f | 27 | #include <TROOT.h> |
7ec4d843 | 28 | |
7e4038b5 | 29 | |
30 | //==================================================================== | |
0bd4b00f | 31 | AliForwardMultiplicityTask::AliForwardMultiplicityTask() |
eb865a4f | 32 | : AliForwardMultiplicityBase(), |
7e4038b5 | 33 | fHData(0), |
7e4038b5 | 34 | fESDFMD(), |
35 | fHistos(), | |
36 | fAODFMD(), | |
2b556440 | 37 | fAODEP(), |
5bb5d1f6 | 38 | fRingSums(), |
fffea31d | 39 | fEventInspector(), |
7e4038b5 | 40 | fSharingFilter(), |
41 | fDensityCalculator(), | |
42 | fCorrections(), | |
43 | fHistCollector(), | |
2b556440 | 44 | fEventPlaneFinder(), |
fffea31d | 45 | fList(0) |
7e4038b5 | 46 | { |
7984e5f7 | 47 | // |
48 | // Constructor | |
49 | // | |
f53fb4f6 | 50 | DGUARD(0,0,"Default construction of AliForwardMultiplicityTask"); |
7e4038b5 | 51 | } |
52 | ||
53 | //____________________________________________________________________ | |
0bd4b00f | 54 | AliForwardMultiplicityTask::AliForwardMultiplicityTask(const char* name) |
eb865a4f | 55 | : AliForwardMultiplicityBase(name), |
7e4038b5 | 56 | fHData(0), |
7e4038b5 | 57 | fESDFMD(), |
58 | fHistos(), | |
4cbdf467 | 59 | fAODFMD(false), |
2b556440 | 60 | fAODEP(false), |
5bb5d1f6 | 61 | fRingSums(), |
fffea31d | 62 | fEventInspector("event"), |
7e4038b5 | 63 | fSharingFilter("sharing"), |
64 | fDensityCalculator("density"), | |
65 | fCorrections("corrections"), | |
66 | fHistCollector("collector"), | |
2b556440 | 67 | fEventPlaneFinder("eventplane"), |
fffea31d | 68 | fList(0) |
7e4038b5 | 69 | { |
7984e5f7 | 70 | // |
71 | // Constructor | |
72 | // | |
73 | // Parameters: | |
74 | // name Name of task | |
75 | // | |
f53fb4f6 | 76 | DGUARD(0,0,"named construction of AliForwardMultiplicityTask: %s", name); |
7e4038b5 | 77 | DefineOutput(1, TList::Class()); |
7e4038b5 | 78 | } |
79 | ||
80 | //____________________________________________________________________ | |
0bd4b00f | 81 | AliForwardMultiplicityTask::AliForwardMultiplicityTask(const AliForwardMultiplicityTask& o) |
eb865a4f | 82 | : AliForwardMultiplicityBase(o), |
7e4038b5 | 83 | fHData(o.fHData), |
7e4038b5 | 84 | fESDFMD(o.fESDFMD), |
85 | fHistos(o.fHistos), | |
86 | fAODFMD(o.fAODFMD), | |
2b556440 | 87 | fAODEP(o.fAODEP), |
5bb5d1f6 | 88 | fRingSums(o.fRingSums), |
fffea31d | 89 | fEventInspector(o.fEventInspector), |
7e4038b5 | 90 | fSharingFilter(o.fSharingFilter), |
91 | fDensityCalculator(o.fDensityCalculator), | |
92 | fCorrections(o.fCorrections), | |
93 | fHistCollector(o.fHistCollector), | |
2b556440 | 94 | fEventPlaneFinder(o.fEventPlaneFinder), |
fffea31d | 95 | fList(o.fList) |
7e4038b5 | 96 | { |
7984e5f7 | 97 | // |
98 | // Copy constructor | |
99 | // | |
100 | // Parameters: | |
101 | // o Object to copy from | |
102 | // | |
f53fb4f6 | 103 | DGUARD(0,0,"Copy construction of AliForwardMultiplicityTask"); |
0bd4b00f | 104 | DefineOutput(1, TList::Class()); |
7e4038b5 | 105 | } |
106 | ||
107 | //____________________________________________________________________ | |
0bd4b00f | 108 | AliForwardMultiplicityTask& |
109 | AliForwardMultiplicityTask::operator=(const AliForwardMultiplicityTask& o) | |
7e4038b5 | 110 | { |
7984e5f7 | 111 | // |
112 | // Assignment operator | |
113 | // | |
114 | // Parameters: | |
115 | // o Object to assign from | |
116 | // | |
117 | // Return: | |
118 | // Reference to this object | |
119 | // | |
f53fb4f6 | 120 | DGUARD(fDebug,3,"Assignment to AliForwardMultiplicityTask"); |
d015ecfe | 121 | if (&o == this) return *this; |
eb865a4f | 122 | AliForwardMultiplicityBase::operator=(o); |
fffea31d | 123 | |
7e4038b5 | 124 | fHData = o.fHData; |
fffea31d | 125 | fEventInspector = o.fEventInspector; |
7e4038b5 | 126 | fSharingFilter = o.fSharingFilter; |
127 | fDensityCalculator = o.fDensityCalculator; | |
128 | fCorrections = o.fCorrections; | |
129 | fHistCollector = o.fHistCollector; | |
2b556440 | 130 | fEventPlaneFinder = o.fEventPlaneFinder; |
7e4038b5 | 131 | fHistos = o.fHistos; |
132 | fAODFMD = o.fAODFMD; | |
2b556440 | 133 | fAODEP = o.fAODEP; |
5bb5d1f6 | 134 | fRingSums = o.fRingSums; |
7e4038b5 | 135 | fList = o.fList; |
7e4038b5 | 136 | |
137 | return *this; | |
138 | } | |
139 | ||
fffea31d | 140 | //____________________________________________________________________ |
141 | void | |
0bd4b00f | 142 | AliForwardMultiplicityTask::SetDebug(Int_t dbg) |
fffea31d | 143 | { |
7984e5f7 | 144 | // |
145 | // Set debug level | |
146 | // | |
147 | // Parameters: | |
148 | // dbg Debug level | |
149 | // | |
fffea31d | 150 | fEventInspector.SetDebug(dbg); |
fffea31d | 151 | fSharingFilter.SetDebug(dbg); |
152 | fDensityCalculator.SetDebug(dbg); | |
153 | fCorrections.SetDebug(dbg); | |
154 | fHistCollector.SetDebug(dbg); | |
2b556440 | 155 | fEventPlaneFinder.SetDebug(dbg); |
fffea31d | 156 | } |
157 | ||
7e4038b5 | 158 | //____________________________________________________________________ |
6ff251d8 | 159 | Bool_t |
0bd4b00f | 160 | AliForwardMultiplicityTask::InitializeSubs() |
7e4038b5 | 161 | { |
7984e5f7 | 162 | // |
163 | // Initialise the sub objects and stuff. Called on first event | |
164 | // | |
165 | // | |
f53fb4f6 | 166 | DGUARD(fDebug,1,"Initialize sub-algorithms"); |
7ec4d843 | 167 | const TAxis* pe = 0; |
168 | const TAxis* pv = 0; | |
0bd4b00f | 169 | |
6ff251d8 | 170 | if (!ReadCorrections(pe,pv)) return false; |
fffea31d | 171 | |
0bd4b00f | 172 | fHistos.Init(*pe); |
173 | fAODFMD.Init(*pe); | |
2b556440 | 174 | fAODEP.Init(*pe); |
5bb5d1f6 | 175 | fRingSums.Init(*pe); |
7e4038b5 | 176 | |
177 | fHData = static_cast<TH2D*>(fAODFMD.GetHistogram().Clone("d2Ndetadphi")); | |
178 | fHData->SetStats(0); | |
179 | fHData->SetDirectory(0); | |
9d99b0dd | 180 | fList->Add(fHData); |
181 | ||
5bb5d1f6 | 182 | TList* rings = new TList; |
183 | rings->SetName("ringSums"); | |
184 | rings->SetOwner(); | |
185 | fList->Add(rings); | |
186 | ||
187 | rings->Add(fRingSums.Get(1, 'I')); | |
188 | rings->Add(fRingSums.Get(2, 'I')); | |
189 | rings->Add(fRingSums.Get(2, 'O')); | |
190 | rings->Add(fRingSums.Get(3, 'I')); | |
191 | rings->Add(fRingSums.Get(3, 'O')); | |
192 | fRingSums.Get(1, 'I')->SetMarkerColor(AliForwardUtil::RingColor(1, 'I')); | |
193 | fRingSums.Get(2, 'I')->SetMarkerColor(AliForwardUtil::RingColor(2, 'I')); | |
194 | fRingSums.Get(2, 'O')->SetMarkerColor(AliForwardUtil::RingColor(2, 'O')); | |
195 | fRingSums.Get(3, 'I')->SetMarkerColor(AliForwardUtil::RingColor(3, 'I')); | |
196 | fRingSums.Get(3, 'O')->SetMarkerColor(AliForwardUtil::RingColor(3, 'O')); | |
197 | ||
0bd4b00f | 198 | fEventInspector.Init(*pv); |
e2ebf8c4 | 199 | fSharingFilter.Init(*pe); |
1174780f | 200 | fDensityCalculator.Init(*pe); |
7ec4d843 | 201 | fCorrections.Init(*pe); |
12fffad7 | 202 | fHistCollector.Init(*pv,*pe); |
2b556440 | 203 | fEventPlaneFinder.Init(*pe); |
0bd4b00f | 204 | |
205 | this->Print(); | |
6ff251d8 | 206 | return true; |
7e4038b5 | 207 | } |
208 | ||
209 | //____________________________________________________________________ | |
210 | void | |
0bd4b00f | 211 | AliForwardMultiplicityTask::UserCreateOutputObjects() |
7e4038b5 | 212 | { |
7984e5f7 | 213 | // |
214 | // Create output objects | |
215 | // | |
216 | // | |
f53fb4f6 | 217 | DGUARD(fDebug,1,"Create user ouput"); |
7e4038b5 | 218 | fList = new TList; |
9d05ffeb | 219 | fList->SetOwner(); |
7e4038b5 | 220 | |
221 | AliAnalysisManager* am = AliAnalysisManager::GetAnalysisManager(); | |
0bd4b00f | 222 | AliAODHandler* ah = |
223 | dynamic_cast<AliAODHandler*>(am->GetOutputEventHandler()); | |
fffea31d | 224 | if (!ah) AliFatal("No AOD output handler set in analysis manager"); |
7e4038b5 | 225 | |
226 | ||
227 | TObject* obj = &fAODFMD; | |
228 | ah->AddBranch("AliAODForwardMult", &obj); | |
2b556440 | 229 | TObject* epobj = &fAODEP; |
230 | ah->AddBranch("AliAODForwardEP", &epobj); | |
7e4038b5 | 231 | |
fffea31d | 232 | fEventInspector.DefineOutput(fList); |
9d99b0dd | 233 | fSharingFilter.DefineOutput(fList); |
234 | fDensityCalculator.DefineOutput(fList); | |
235 | fCorrections.DefineOutput(fList); | |
12fffad7 | 236 | fHistCollector.DefineOutput(fList); |
2b556440 | 237 | fEventPlaneFinder.DefineOutput(fList); |
0bd4b00f | 238 | |
239 | PostData(1, fList); | |
7e4038b5 | 240 | } |
241 | //____________________________________________________________________ | |
242 | void | |
0bd4b00f | 243 | AliForwardMultiplicityTask::UserExec(Option_t*) |
7e4038b5 | 244 | { |
7984e5f7 | 245 | // |
246 | // Process each event | |
247 | // | |
248 | // Parameters: | |
249 | // option Not used | |
250 | // | |
251 | ||
f53fb4f6 | 252 | DGUARD(fDebug,1,"Process the input event"); |
0bd4b00f | 253 | // static Int_t cnt = 0; |
254 | // cnt++; | |
7e4038b5 | 255 | // Get the input data |
7ec4d843 | 256 | AliESDEvent* esd = GetESDEvent(); |
6ff251d8 | 257 | if (!esd) return; |
7e4038b5 | 258 | |
7e4038b5 | 259 | // Clear stuff |
260 | fHistos.Clear(); | |
261 | fESDFMD.Clear(); | |
262 | fAODFMD.Clear(); | |
2b556440 | 263 | fAODEP.Clear(); |
e58000b7 | 264 | |
5bb5d1f6 | 265 | Bool_t lowFlux = kFALSE; |
266 | UInt_t triggers = 0; | |
267 | UShort_t ivz = 0; | |
268 | Double_t vz = 0; | |
269 | Double_t cent = -1; | |
270 | UShort_t nClusters = 0; | |
271 | UInt_t found = fEventInspector.Process(esd, triggers, lowFlux, | |
272 | ivz, vz, cent, nClusters); | |
e58000b7 | 273 | |
9bff843b | 274 | if (found & AliFMDEventInspector::kNoEvent) return; |
275 | if (found & AliFMDEventInspector::kNoTriggers) return; | |
276 | ||
fffea31d | 277 | // Set trigger bits, and mark this event for storage |
9d99b0dd | 278 | fAODFMD.SetTriggerBits(triggers); |
b2e7f2d6 | 279 | fAODFMD.SetSNN(fEventInspector.GetEnergy()); |
280 | fAODFMD.SetSystem(fEventInspector.GetCollisionSystem()); | |
e58000b7 | 281 | fAODFMD.SetCentrality(cent); |
5bb5d1f6 | 282 | fAODFMD.SetNClusters(nClusters); |
7e4038b5 | 283 | MarkEventForStore(); |
2b556440 | 284 | |
3c5497d0 | 285 | if (found & AliFMDEventInspector::kNoSPD) return; |
286 | if (found & AliFMDEventInspector::kNoFMD) return; | |
287 | if (found & AliFMDEventInspector::kNoVertex) return; | |
e58000b7 | 288 | |
289 | if (triggers & AliAODForwardMult::kPileUp) return; | |
290 | ||
fffea31d | 291 | fAODFMD.SetIpZ(vz); |
7e4038b5 | 292 | |
fffea31d | 293 | if (found & AliFMDEventInspector::kBadVertex) return; |
7e4038b5 | 294 | |
0bd4b00f | 295 | // We we do not want to use low flux specific code, we disable it here. |
296 | if (!fEnableLowFlux) lowFlux = false; | |
297 | ||
fffea31d | 298 | // Get FMD data |
299 | AliESDFMD* esdFMD = esd->GetFMDData(); | |
12fffad7 | 300 | // // Apply the sharing filter (or hit merging or clustering if you like) |
6f4a5c0d | 301 | if (!fSharingFilter.Filter(*esdFMD, lowFlux, fESDFMD, vz)) { |
fffea31d | 302 | AliWarning("Sharing filter failed!"); |
7e4038b5 | 303 | return; |
304 | } | |
2b556440 | 305 | |
7e4038b5 | 306 | // Calculate the inclusive charged particle density |
6f4a5c0d | 307 | if (!fDensityCalculator.Calculate(fESDFMD, fHistos, ivz, lowFlux, cent,vz)) { |
f7cfc454 | 308 | // if (!fDensityCalculator.Calculate(*esdFMD, fHistos, ivz, lowFlux)) { |
7e4038b5 | 309 | AliWarning("Density calculator failed!"); |
310 | return; | |
311 | } | |
2b556440 | 312 | |
313 | if (fEventInspector.GetCollisionSystem() == AliFMDEventInspector::kPbPb) { | |
314 | if (!fEventPlaneFinder.FindEventplane(esd, fAODEP, &(fAODFMD.GetHistogram()), &fHistos)) | |
315 | AliWarning("Eventplane finder failed!"); | |
316 | } | |
7e4038b5 | 317 | |
318 | // Do the secondary and other corrections. | |
319 | if (!fCorrections.Correct(fHistos, ivz)) { | |
320 | AliWarning("Corrections failed"); | |
321 | return; | |
322 | } | |
323 | ||
5bb5d1f6 | 324 | if (!fHistCollector.Collect(fHistos, fRingSums, |
325 | ivz, fAODFMD.GetHistogram())) { | |
7e4038b5 | 326 | AliWarning("Histogram collector failed"); |
327 | return; | |
328 | } | |
329 | ||
330 | if (fAODFMD.IsTriggerBits(AliAODForwardMult::kInel)) | |
331 | fHData->Add(&(fAODFMD.GetHistogram())); | |
2d68d438 | 332 | |
333 | PostData(1, fList); | |
7e4038b5 | 334 | } |
335 | ||
336 | //____________________________________________________________________ | |
337 | void | |
0bd4b00f | 338 | AliForwardMultiplicityTask::Terminate(Option_t*) |
7e4038b5 | 339 | { |
7984e5f7 | 340 | // |
341 | // End of job | |
342 | // | |
343 | // Parameters: | |
344 | // option Not used | |
345 | // | |
f53fb4f6 | 346 | DGUARD(fDebug,1,"Processing the merged results"); |
7984e5f7 | 347 | |
7e4038b5 | 348 | TList* list = dynamic_cast<TList*>(GetOutputData(1)); |
349 | if (!list) { | |
2d68d438 | 350 | AliError(Form("No output list defined (%p)", GetOutputData(1))); |
351 | if (GetOutputData(1)) GetOutputData(1)->Print(); | |
7e4038b5 | 352 | return; |
353 | } | |
9d99b0dd | 354 | |
355 | // Get our histograms from the container | |
fffea31d | 356 | TH1I* hEventsTr = 0;//static_cast<TH1I*>(list->FindObject("nEventsTr")); |
357 | TH1I* hEventsTrVtx = 0;//static_cast<TH1I*>(list->FindObject("nEventsTrVtx")); | |
358 | TH1I* hTriggers = 0; | |
359 | if (!fEventInspector.FetchHistograms(list, hEventsTr, | |
360 | hEventsTrVtx, hTriggers)) { | |
361 | AliError(Form("Didn't get histograms from event selector " | |
362 | "(hEventsTr=%p,hEventsTrVtx=%p)", | |
363 | hEventsTr, hEventsTrVtx)); | |
364 | list->ls(); | |
365 | return; | |
366 | } | |
367 | ||
9d99b0dd | 368 | TH2D* hData = static_cast<TH2D*>(list->FindObject("d2Ndetadphi")); |
fffea31d | 369 | if (!hData) { |
370 | AliError(Form("Couldn't get our summed histogram from output " | |
371 | "list %s (d2Ndetadphi=%p)", list->GetName(), hData)); | |
2d68d438 | 372 | list->ls(); |
373 | return; | |
374 | } | |
9d99b0dd | 375 | |
7e4038b5 | 376 | // TH1D* dNdeta = fHData->ProjectionX("dNdeta", 0, -1, "e"); |
9d99b0dd | 377 | TH1D* dNdeta = hData->ProjectionX("dNdeta", 1, -1, "e"); |
12fffad7 | 378 | TH1D* norm = hData->ProjectionX("norm", 0, 0, ""); |
7e4038b5 | 379 | dNdeta->SetTitle("dN_{ch}/d#eta in the forward regions"); |
380 | dNdeta->SetYTitle("#frac{1}{N}#frac{dN_{ch}}{d#eta}"); | |
381 | dNdeta->Divide(norm); | |
382 | dNdeta->SetStats(0); | |
9d99b0dd | 383 | dNdeta->Scale(Double_t(hEventsTrVtx->GetEntries())/hEventsTr->GetEntries(), |
7e4038b5 | 384 | "width"); |
7e4038b5 | 385 | list->Add(dNdeta); |
0bd4b00f | 386 | list->Add(norm); |
fffea31d | 387 | |
5bb5d1f6 | 388 | MakeRingdNdeta(list, "ringSums", list, "ringResults"); |
389 | ||
6feacd76 | 390 | fSharingFilter.ScaleHistograms(list,Int_t(hEventsTr->Integral())); |
391 | fDensityCalculator.ScaleHistograms(list,Int_t(hEventsTrVtx->Integral())); | |
392 | fCorrections.ScaleHistograms(list,Int_t(hEventsTrVtx->Integral())); | |
7e4038b5 | 393 | } |
7e4038b5 | 394 | |
395 | // | |
396 | // EOF | |
397 | // |