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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> | |
a19faec0 | 30 | #define MCAOD_SLOT 4 |
31 | #define PRIMARY_SLOT 5 | |
32 | #ifdef POST_AOD | |
33 | # define DEFINE(N,C) DefineOutput(N,C) | |
34 | # define POST(N,O) PostData(N,O) | |
35 | #else | |
36 | # define DEFINE(N,C) do { } while(false) | |
37 | # define POST(N,O) do { } while(false) | |
38 | #endif | |
285e7b27 | 39 | |
40 | //==================================================================== | |
41 | AliForwardMCMultiplicityTask::AliForwardMCMultiplicityTask() | |
42 | : AliForwardMultiplicityBase(), | |
285e7b27 | 43 | fESDFMD(), |
285e7b27 | 44 | fMCESDFMD(), |
45 | fMCHistos(), | |
46 | fMCAODFMD(), | |
5bb5d1f6 | 47 | fMCRingSums(), |
4cbdf467 | 48 | fPrimary(0), |
285e7b27 | 49 | fEventInspector(), |
0ccdab7b | 50 | fESDFixer(), |
285e7b27 | 51 | fSharingFilter(), |
52 | fDensityCalculator(), | |
53 | fCorrections(), | |
54 | fHistCollector(), | |
8449e3e0 | 55 | fEventPlaneFinder() |
285e7b27 | 56 | { |
7984e5f7 | 57 | // |
58 | // Constructor | |
59 | // | |
285e7b27 | 60 | } |
61 | ||
62 | //____________________________________________________________________ | |
63 | AliForwardMCMultiplicityTask::AliForwardMCMultiplicityTask(const char* name) | |
64 | : AliForwardMultiplicityBase(name), | |
285e7b27 | 65 | fESDFMD(), |
285e7b27 | 66 | fMCESDFMD(), |
67 | fMCHistos(), | |
68 | fMCAODFMD(kTRUE), | |
5bb5d1f6 | 69 | fMCRingSums(), |
4cbdf467 | 70 | fPrimary(0), |
285e7b27 | 71 | fEventInspector("event"), |
0ccdab7b | 72 | fESDFixer("esdFizer"), |
285e7b27 | 73 | fSharingFilter("sharing"), |
74 | fDensityCalculator("density"), | |
75 | fCorrections("corrections"), | |
76 | fHistCollector("collector"), | |
8449e3e0 | 77 | fEventPlaneFinder("eventplane") |
285e7b27 | 78 | { |
7984e5f7 | 79 | // |
80 | // Constructor | |
81 | // | |
82 | // Parameters: | |
83 | // name Name of task | |
84 | // | |
f71c22f5 CHC |
85 | fPrimary = new TH2D("primary", "MC Primaries", 1,0,1,20,0,TMath::TwoPi()); |
86 | fPrimary->SetXTitle("#eta"); | |
87 | fPrimary->SetYTitle("#varphi [radians]"); | |
88 | fPrimary->SetZTitle("d^{2}N_{ch}/d#etad#phi"); | |
89 | fPrimary->Sumw2(); | |
90 | fPrimary->SetStats(0); | |
91 | fPrimary->SetDirectory(0); | |
a19faec0 | 92 | DEFINE(MCAOD_SLOT,AliAODForwardMult::Class()); |
93 | DEFINE(PRIM_SLOT, TH2D::Class()); | |
285e7b27 | 94 | } |
95 | ||
285e7b27 | 96 | //____________________________________________________________________ |
97 | void | |
8449e3e0 | 98 | AliForwardMCMultiplicityTask::SetOnlyPrimary(Bool_t use) |
285e7b27 | 99 | { |
8449e3e0 | 100 | fSharingFilter.GetTrackDensity().SetUseOnlyPrimary(use); |
101 | fCorrections.SetSecondaryForMC(!use); | |
285e7b27 | 102 | } |
8449e3e0 | 103 | |
5bb5d1f6 | 104 | //____________________________________________________________________ |
105 | void | |
8449e3e0 | 106 | AliForwardMCMultiplicityTask::CreateBranches(AliAODHandler* ah) |
5bb5d1f6 | 107 | { |
8449e3e0 | 108 | // |
109 | // Create output objects | |
110 | // | |
111 | // | |
112 | AliForwardMultiplicityBase::CreateBranches(ah); | |
113 | ||
114 | TObject* mcobj = &fMCAODFMD; | |
f71c22f5 | 115 | ah->AddBranch("AliAODForwardMult", &mcobj); |
8449e3e0 | 116 | ah->AddBranch("TH2D", &fPrimary); |
5bb5d1f6 | 117 | } |
118 | ||
a19faec0 | 119 | //____________________________________________________________________ |
120 | Bool_t | |
121 | AliForwardMCMultiplicityTask::Book() | |
122 | { | |
0ccdab7b | 123 | // We do this to explicitly disable the noise corrector for MC |
124 | GetESDFixer().SetRecoNoiseFactor(5); | |
125 | ||
a19faec0 | 126 | Bool_t ret = AliForwardMultiplicityBase::Book(); |
127 | POST(MCAOD_SLOT, &fMCAODFMD); | |
128 | POST(PRIM_SLOT, fPrimary); | |
129 | return ret; | |
130 | } | |
8449e3e0 | 131 | |
285e7b27 | 132 | //____________________________________________________________________ |
8449e3e0 | 133 | void |
c8b1a7db | 134 | AliForwardMCMultiplicityTask::InitMembers(const TAxis& eta, const TAxis& vertex) |
285e7b27 | 135 | { |
7984e5f7 | 136 | // |
137 | // Initialise the sub objects and stuff. Called on first event | |
138 | // | |
139 | // | |
c8b1a7db | 140 | AliForwardMultiplicityBase::InitMembers(eta, vertex); |
1174780f | 141 | |
c8b1a7db | 142 | fMCHistos.Init(eta); |
143 | fMCAODFMD.Init(eta); | |
144 | fMCRingSums.Init(eta); | |
145 | ||
146 | AliForwardUtil::Histos::RebinEta(fPrimary, eta); | |
147 | DMSG(fDebug,0,"Primary histogram rebinned to %d,%f,%f eta axis %d,%f,%f", | |
148 | fPrimary->GetXaxis()->GetNbins(), | |
149 | fPrimary->GetXaxis()->GetXmin(), | |
150 | fPrimary->GetXaxis()->GetXmax(), | |
151 | eta.GetNbins(), | |
152 | eta.GetXmin(), | |
153 | eta.GetXmax()); | |
285e7b27 | 154 | |
5bb5d1f6 | 155 | |
156 | TList* mcRings = new TList; | |
157 | mcRings->SetName("mcRingSums"); | |
158 | mcRings->SetOwner(); | |
159 | fList->Add(mcRings); | |
160 | ||
161 | mcRings->Add(fMCRingSums.Get(1, 'I')); | |
162 | mcRings->Add(fMCRingSums.Get(2, 'I')); | |
163 | mcRings->Add(fMCRingSums.Get(2, 'O')); | |
164 | mcRings->Add(fMCRingSums.Get(3, 'I')); | |
165 | mcRings->Add(fMCRingSums.Get(3, 'O')); | |
166 | fMCRingSums.Get(1, 'I')->SetMarkerColor(AliForwardUtil::RingColor(1, 'I')); | |
167 | fMCRingSums.Get(2, 'I')->SetMarkerColor(AliForwardUtil::RingColor(2, 'I')); | |
168 | fMCRingSums.Get(2, 'O')->SetMarkerColor(AliForwardUtil::RingColor(2, 'O')); | |
169 | fMCRingSums.Get(3, 'I')->SetMarkerColor(AliForwardUtil::RingColor(3, 'I')); | |
170 | fMCRingSums.Get(3, 'O')->SetMarkerColor(AliForwardUtil::RingColor(3, 'O')); | |
285e7b27 | 171 | } |
172 | ||
285e7b27 | 173 | //____________________________________________________________________ |
c8b1a7db | 174 | Bool_t |
175 | AliForwardMCMultiplicityTask::PreEvent() | |
176 | { | |
177 | if (fFirstEvent) | |
178 | fEventInspector.ReadProductionDetails(MCEvent()); | |
179 | // Clear stuff | |
180 | fHistos.Clear(); | |
181 | fESDFMD.Clear(); | |
182 | fAODFMD.Clear(); | |
183 | fAODEP.Clear(); | |
184 | fMCHistos.Clear(); | |
185 | fMCESDFMD.Clear(); | |
186 | fMCAODFMD.Clear(); | |
187 | fPrimary->Reset(); | |
188 | return true; | |
189 | } | |
190 | //____________________________________________________________________ | |
191 | Bool_t | |
192 | AliForwardMCMultiplicityTask::Event(AliESDEvent& esd) | |
285e7b27 | 193 | { |
7984e5f7 | 194 | // |
195 | // Process each event | |
196 | // | |
197 | // Parameters: | |
198 | // option Not used | |
199 | // | |
200 | ||
f7cfc454 | 201 | // Read production details |
f7cfc454 | 202 | |
285e7b27 | 203 | // Get the input data |
e1f47419 | 204 | AliMCEvent* mcEvent = MCEvent(); |
c8b1a7db | 205 | if (!mcEvent) return false; |
285e7b27 | 206 | |
5bb5d1f6 | 207 | Bool_t lowFlux = kFALSE; |
208 | UInt_t triggers = 0; | |
209 | UShort_t ivz = 0; | |
5ca83fee | 210 | TVector3 ip(1024, 1024, 0); |
21d778b1 | 211 | Double_t cent = -1; |
5bb5d1f6 | 212 | UShort_t nClusters = 0; |
c8b1a7db | 213 | UInt_t found = fEventInspector.Process(&esd, triggers, lowFlux, |
5ca83fee | 214 | ivz, ip, cent, nClusters); |
e1f47419 | 215 | UShort_t ivzMC = 0; |
216 | Double_t vzMC = 0; | |
217 | Double_t phiR = 0; | |
218 | Double_t b = 0; | |
241cca4d | 219 | Double_t cMC = 0; |
e308a636 | 220 | Int_t npart = 0; |
221 | Int_t nbin = 0; | |
e1f47419 | 222 | // UInt_t foundMC = |
241cca4d | 223 | fEventInspector.ProcessMC(mcEvent, triggers, ivzMC, vzMC, b, cMC, |
e308a636 | 224 | npart, nbin, phiR); |
73b32206 | 225 | fEventInspector.CompareResults(ip.Z(), vzMC, cent, cMC, b, npart, nbin); |
1dbfc345 | 226 | |
e333578d | 227 | //Store all events |
148c39de | 228 | MarkEventForStore(); |
e333578d | 229 | |
230 | Bool_t isAccepted = true; | |
231 | if (found & AliFMDEventInspector::kNoEvent) isAccepted = false; // return; | |
232 | if (found & AliFMDEventInspector::kNoTriggers) isAccepted = false; // return; | |
148c39de | 233 | //MarkEventForStore(); |
b30dee70 | 234 | // Always set the B trigger - each MC event _is_ a collision |
235 | triggers |= AliAODForwardMult::kB; | |
285e7b27 | 236 | // Set trigger bits, and mark this event for storage |
237 | fAODFMD.SetTriggerBits(triggers); | |
e308a636 | 238 | fAODFMD.SetSNN(fEventInspector.GetEnergy()); |
239 | fAODFMD.SetSystem(fEventInspector.GetCollisionSystem()); | |
e58000b7 | 240 | fAODFMD.SetCentrality(cent); |
5bb5d1f6 | 241 | fAODFMD.SetNClusters(nClusters); |
e308a636 | 242 | |
243 | fMCAODFMD.SetTriggerBits(triggers); | |
244 | fMCAODFMD.SetSNN(fEventInspector.GetEnergy()); | |
245 | fMCAODFMD.SetSystem(fEventInspector.GetCollisionSystem()); | |
246 | fMCAODFMD.SetCentrality(cent); | |
5bb5d1f6 | 247 | fMCAODFMD.SetNClusters(nClusters); |
e58000b7 | 248 | |
e1f47419 | 249 | // Disable this check on SPD - will bias data |
250 | // if (found & AliFMDEventInspector::kNoSPD) isAccepted = false; // return; | |
e333578d | 251 | if (found & AliFMDEventInspector::kNoFMD) isAccepted = false; // return; |
252 | if (found & AliFMDEventInspector::kNoVertex) isAccepted = false; // return; | |
253 | ||
254 | if (isAccepted) { | |
5ca83fee | 255 | fAODFMD.SetIpZ(ip.Z()); |
256 | fMCAODFMD.SetIpZ(ip.Z()); | |
e333578d | 257 | } |
258 | if (found & AliFMDEventInspector::kBadVertex) isAccepted = false; // return; | |
285e7b27 | 259 | |
260 | // We we do not want to use low flux specific code, we disable it here. | |
261 | if (!fEnableLowFlux) lowFlux = false; | |
148c39de | 262 | |
263 | ||
285e7b27 | 264 | |
265 | // Get FMD data | |
c8b1a7db | 266 | AliESDFMD* esdFMD = esd.GetFMDData(); |
0ccdab7b | 267 | |
268 | // Fix up the the ESD | |
269 | GetESDFixer().Fix(*esdFMD, ip.Z()); | |
e1f47419 | 270 | |
285e7b27 | 271 | // Apply the sharing filter (or hit merging or clustering if you like) |
c8b1a7db | 272 | if (isAccepted && !fSharingFilter.Filter(*esdFMD, lowFlux, fESDFMD,ip.Z())){ |
285e7b27 | 273 | AliWarning("Sharing filter failed!"); |
c8b1a7db | 274 | return false; |
285e7b27 | 275 | } |
c8b1a7db | 276 | if (!fSharingFilter.FilterMC(*esdFMD, *mcEvent, ip.Z(),fMCESDFMD,fPrimary)){ |
285e7b27 | 277 | AliWarning("MC Sharing filter failed!"); |
c8b1a7db | 278 | return false; |
285e7b27 | 279 | } |
dd556bcd | 280 | |
281 | // Store some MC parameters in corners of histogram :-) | |
282 | fPrimary->SetBinContent(0, 0, vzMC); | |
283 | fPrimary->SetBinContent(fPrimary->GetNbinsX()+1,0, phiR); | |
284 | fPrimary->SetBinContent(fPrimary->GetNbinsX()+1,fPrimary->GetNbinsY(),cMC); | |
285 | ||
286 | ||
c8b1a7db | 287 | if (!isAccepted) |
288 | // Exit on MC event w/o trigger, vertex, data - since there's no more | |
289 | // to be done for MC | |
290 | return false; | |
1dbfc345 | 291 | |
148c39de | 292 | //MarkEventForStore(); |
285e7b27 | 293 | fSharingFilter.CompareResults(fESDFMD, fMCESDFMD); |
294 | ||
285e7b27 | 295 | // Calculate the inclusive charged particle density |
5934a3e3 | 296 | if (!fDensityCalculator.Calculate(fESDFMD, fHistos, lowFlux, cent, ip)) { |
285e7b27 | 297 | AliWarning("Density calculator failed!"); |
c8b1a7db | 298 | return false; |
285e7b27 | 299 | } |
300 | if (!fDensityCalculator.CalculateMC(fMCESDFMD, fMCHistos)) { | |
301 | AliWarning("MC Density calculator failed!"); | |
c8b1a7db | 302 | return false; |
285e7b27 | 303 | } |
304 | fDensityCalculator.CompareResults(fHistos, fMCHistos); | |
305 | ||
2b556440 | 306 | if (fEventInspector.GetCollisionSystem() == AliFMDEventInspector::kPbPb) { |
c8b1a7db | 307 | if (!fEventPlaneFinder.FindEventplane(&esd, fAODEP, |
308 | &(fAODFMD.GetHistogram()), &fHistos)) | |
2b556440 | 309 | AliWarning("Eventplane finder failed!"); |
310 | } | |
311 | ||
285e7b27 | 312 | // Do the secondary and other corrections. |
313 | if (!fCorrections.Correct(fHistos, ivz)) { | |
314 | AliWarning("Corrections failed"); | |
c8b1a7db | 315 | return false; |
285e7b27 | 316 | } |
317 | if (!fCorrections.CorrectMC(fMCHistos, ivz)) { | |
318 | AliWarning("MC Corrections failed"); | |
c8b1a7db | 319 | return false; |
285e7b27 | 320 | } |
321 | fCorrections.CompareResults(fHistos, fMCHistos); | |
64d35c05 | 322 | |
323 | Bool_t add = fAODFMD.IsTriggerBits(AliAODForwardMult::kInel); | |
324 | if (!fHistCollector.Collect(fHistos, | |
325 | fRingSums, | |
326 | ivz, | |
327 | fAODFMD.GetHistogram(), | |
328 | fAODFMD.GetCentrality(), | |
329 | false, | |
330 | add)) { | |
285e7b27 | 331 | AliWarning("Histogram collector failed"); |
c8b1a7db | 332 | return false; |
285e7b27 | 333 | } |
64d35c05 | 334 | if (!fHistCollector.Collect(fMCHistos, |
335 | fMCRingSums, | |
336 | ivz, | |
337 | fMCAODFMD.GetHistogram(), | |
338 | -1, | |
339 | true, | |
340 | add)) { | |
285e7b27 | 341 | AliWarning("MC Histogram collector failed"); |
c8b1a7db | 342 | return false; |
285e7b27 | 343 | } |
c8b1a7db | 344 | #if 0 |
29132080 | 345 | // Copy underflow bins to overflow bins - always full phi coverage |
bfab35d9 | 346 | TH2& hMC = fMCAODFMD.GetHistogram(); |
29132080 | 347 | Int_t nEta = hMC.GetNbinsX(); |
348 | Int_t nY = hMC.GetNbinsY(); | |
349 | for (Int_t iEta = 1; iEta <= nEta; iEta++) { | |
350 | hMC.SetBinContent(iEta, nY+1, hMC.GetBinContent(iEta, 0)); | |
351 | } | |
c8b1a7db | 352 | #endif |
285e7b27 | 353 | |
64d35c05 | 354 | if (add) |
285e7b27 | 355 | fHData->Add(&(fAODFMD.GetHistogram())); |
356 | ||
c8b1a7db | 357 | return true; |
285e7b27 | 358 | } |
359 | ||
a19faec0 | 360 | //____________________________________________________________________ |
361 | Bool_t | |
362 | AliForwardMCMultiplicityTask::PostEvent() | |
363 | { | |
364 | Bool_t ret = AliForwardMultiplicityBase::PostEvent(); | |
365 | POST(MCAOD_SLOT, &fMCAODFMD); | |
366 | POST(PRIMARY_SLOT, fPrimary); | |
367 | return ret; | |
368 | } | |
369 | ||
285e7b27 | 370 | //____________________________________________________________________ |
371 | void | |
8449e3e0 | 372 | AliForwardMCMultiplicityTask::EstimatedNdeta(const TList* input, |
373 | TList* output) const | |
285e7b27 | 374 | { |
8449e3e0 | 375 | AliForwardMultiplicityBase::EstimatedNdeta(input, output); |
376 | MakeRingdNdeta(input, "mcRingSums", output, "mcRingResults", 24); | |
285e7b27 | 377 | } |
378 | ||
285e7b27 | 379 | |
8449e3e0 | 380 | |
285e7b27 | 381 | // |
382 | // EOF | |
383 | // |