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