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1 | #include "AliAnalysisMuMuSingle.h" |
2 | ||
3 | /** | |
4 | * | |
5 | * \ingroup pwg-muon-mumu | |
6 | * | |
7 | * \class AliAnalysisMuMuSingle | |
8 | * | |
9 | * Histogramming of single muon tracks. Mostly to get control plots for | |
16560e8e | 10 | * the AliAnalysisMuMuMinv sub-analysis, with respect to track cuts used, |
5376e016 CP |
11 | * like Rabs, p x DCA, etc... |
12 | * | |
13 | */ | |
14 | ||
5376e016 CP |
15 | #include "TH2F.h" |
16 | #include "AliMuonTrackCuts.h" | |
17 | #include "AliAnalysisMuonUtility.h" | |
18 | #include "TMath.h" | |
19 | #include "AliLog.h" | |
20 | #include "AliVParticle.h" | |
21 | #include "TLorentzVector.h" | |
22 | #include "AliAnalysisMuMuCutCombination.h" | |
23 | #include "AliAnalysisMuMuCutRegistry.h" | |
24 | #include "AliMergeableCollection.h" | |
25 | ||
26 | ClassImp(AliAnalysisMuMuSingle) | |
27 | ||
28 | //_____________________________________________________________________________ | |
29 | AliAnalysisMuMuSingle::AliAnalysisMuMuSingle() | |
30 | : AliAnalysisMuMuBase(), | |
31 | fMuonTrackCuts(0x0), | |
32 | fShouldSeparatePlusAndMinus(kFALSE), | |
33 | fAccEffHisto(0x0) | |
34 | { | |
35 | /// ctor | |
36 | } | |
37 | ||
38 | //_____________________________________________________________________________ | |
39 | AliAnalysisMuMuSingle::~AliAnalysisMuMuSingle() | |
40 | { | |
41 | /// dtor | |
42 | delete fMuonTrackCuts; | |
43 | delete fAccEffHisto; | |
44 | } | |
45 | ||
46 | ||
47 | //_____________________________________________________________________________ | |
48 | void | |
49 | AliAnalysisMuMuSingle::CreateTrackHisto(const char* eventSelection, | |
50 | const char* triggerClassName, | |
51 | const char* centrality, | |
52 | const char* hname, const char* htitle, | |
53 | Int_t nbinsx, Double_t xmin, Double_t xmax, | |
54 | Int_t nbinsy, Double_t ymin, Double_t ymax, | |
55 | Bool_t separatePlusAndMinus) const | |
56 | { | |
57 | /// Append histograms for single track to our histogram collection | |
58 | ||
59 | if ( IsHistogramDisabled(hname) ) return; | |
60 | ||
61 | if ( separatePlusAndMinus ) | |
62 | { | |
63 | const char* suffix[] = { "Plus", "Minus" }; | |
64 | const char* symbol[] = { "+", "-" }; | |
65 | ||
66 | for ( Int_t i = 0; i < 2; ++i ) | |
67 | { | |
68 | TString shtitle(htitle); | |
69 | TString shname(hname); | |
70 | ||
71 | shtitle.ReplaceAll("#mu",Form("#mu^{%s}",symbol[i])); | |
72 | ||
73 | shname += suffix[i]; | |
74 | ||
16560e8e | 75 | CreateTrackHistos(kHistoForData | kHistoForMCInput,eventSelection,triggerClassName,centrality,shname.Data(),shtitle.Data(), |
5376e016 CP |
76 | nbinsx,xmin,xmax,nbinsy,ymin,ymax); |
77 | } | |
78 | } | |
79 | else | |
80 | { | |
16560e8e | 81 | CreateTrackHistos(kHistoForData | kHistoForMCInput,eventSelection,triggerClassName,centrality,hname,htitle, |
5376e016 CP |
82 | nbinsx,xmin,xmax,nbinsy,ymin,ymax); |
83 | } | |
84 | } | |
85 | ||
16560e8e | 86 | //_____________________________________________________________________________ |
87 | Bool_t AliAnalysisMuMuSingle::IsPDCAOK(const AliVParticle& part) | |
88 | { | |
89 | UInt_t selectionMask = MuonTrackCuts() ? MuonTrackCuts()->GetSelectionMask(&part) : 0; | |
90 | ||
91 | return ( ( selectionMask & AliMuonTrackCuts::kMuPdca ) == AliMuonTrackCuts::kMuPdca ); | |
92 | } | |
93 | ||
5376e016 CP |
94 | //_____________________________________________________________________________ |
95 | Bool_t AliAnalysisMuMuSingle::IsRabsOK(const AliVParticle& part) const | |
96 | { | |
97 | Double_t thetaAbsEndDeg = AliAnalysisMuonUtility::GetThetaAbsDeg(&part); | |
98 | ||
99 | return ( thetaAbsEndDeg > 2. && thetaAbsEndDeg < 10. ); | |
100 | } | |
101 | ||
102 | //_____________________________________________________________________________ | |
16560e8e | 103 | Bool_t AliAnalysisMuMuSingle::IsEtaInRange(const AliVParticle& part) const |
5376e016 | 104 | { |
16560e8e | 105 | return (part.Eta() > -4.0 && part.Eta() < -2.5); |
5376e016 CP |
106 | } |
107 | ||
108 | //_____________________________________________________________________________ | |
109 | void AliAnalysisMuMuSingle::SetRun(const AliInputEventHandler* eventHandler) | |
110 | { | |
111 | MuonTrackCuts()->SetRun(eventHandler); | |
112 | } | |
113 | ||
114 | //_____________________________________________________________________________ | |
115 | Int_t AliAnalysisMuMuSingle::EAGetNumberOfMuonTracks() const | |
116 | { | |
117 | // Get the number of muon tracks *that are not ghosts* | |
118 | ||
119 | Int_t ntracks = AliAnalysisMuonUtility::GetNTracks(Event()); | |
120 | ||
121 | for ( Int_t i = 0; i < ntracks; ++i ) | |
122 | { | |
123 | AliVParticle* track = AliAnalysisMuonUtility::GetTrack(i,Event()); | |
124 | if (AliAnalysisMuonUtility::IsMuonGhost(track)) --ntracks; | |
125 | } | |
126 | ||
127 | return ntracks; | |
128 | } | |
129 | ||
130 | ////_____________________________________________________________________________ | |
131 | //Int_t AliAnalysisMuMuSingle::EAGetNumberOfSelectMuonTracks() const | |
132 | //{ | |
133 | // // Get the number of "very good" muon tracks : | |
134 | // // Rabs + DCA + pT > 1.5 Gev/C | |
135 | // | |
136 | // Int_t nTracks = AliAnalysisMuonUtility::GetNTracks(Event()); | |
137 | // | |
138 | // UInt_t check = kAll | kMatched | kRabs | kDCA | kEta | kPt1dot5; | |
139 | // | |
140 | // Int_t nGood(0); | |
141 | // | |
142 | // for ( Int_t i = 0; i < nTracks; ++i ) | |
143 | // { | |
144 | // ULong64_t m = GetTrackMask(i); | |
145 | // if ( ( m & check ) == check ) | |
146 | // { | |
147 | // ++nGood; | |
148 | // } | |
149 | // } | |
150 | // return nGood; | |
151 | //} | |
152 | ||
153 | //_____________________________________________________________________________ | |
154 | Double_t AliAnalysisMuMuSingle::EAGetTrackDCA(const AliVParticle& track) const | |
155 | { | |
156 | // Get track DCA | |
157 | ||
158 | Double_t xdca = AliAnalysisMuonUtility::GetXatDCA(&track); | |
159 | Double_t ydca = AliAnalysisMuonUtility::GetYatDCA(&track); | |
160 | ||
161 | return TMath::Sqrt(xdca*xdca+ydca*ydca); | |
162 | } | |
163 | ||
164 | //_____________________________________________________________________________ | |
165 | void AliAnalysisMuMuSingle::DefineHistogramCollection(const char* eventSelection, | |
166 | const char* triggerClassName, | |
167 | const char* centrality) | |
168 | { | |
169 | /// Actually create the histograms for phyics/triggerClassName | |
170 | ||
171 | if ( Histo(eventSelection,triggerClassName,centrality,"AliAnalysisMuMuSingle") ) | |
172 | { | |
173 | return; | |
174 | } | |
175 | ||
176 | AliAnalysisMuMuBase::EDataType dt = AliAnalysisMuMuBase::kHistoForData; | |
177 | ||
178 | // dummy histogram to signal that we already defined all our histograms (see above) | |
179 | CreateEventHistos(dt,eventSelection,triggerClassName,centrality,"AliAnalysisMuMuSingle","Dummy semaphore",1,0,1); | |
180 | ||
181 | Double_t ptMin = 0; | |
182 | Double_t ptMax = 12*3; | |
183 | Int_t nbinsPt = GetNbins(ptMin,ptMax,0.5); | |
184 | Double_t pMin = 0; | |
185 | Double_t pMax = 100*3; | |
186 | Int_t nbinsP = GetNbins(pMin,pMax,2.0); | |
187 | Double_t etaMin = -5; | |
188 | Double_t etaMax = -2; | |
189 | Int_t nbinsEta = GetNbins(etaMin,etaMax,0.05); | |
190 | ||
191 | Double_t rapidityMin = -5; | |
192 | Double_t rapidityMax = -2; | |
193 | Int_t nbinsRapidity = GetNbins(rapidityMin,rapidityMax,0.05); | |
194 | ||
195 | Double_t phiMin = -TMath::Pi(); | |
196 | Double_t phiMax = TMath::Pi(); | |
197 | Int_t nbinsPhi = GetNbins(phiMin,phiMax,0.05); | |
198 | ||
199 | CreateTrackHisto(eventSelection,triggerClassName,centrality,"Chi2MatchTrigger","Chi2 Match Trigger",72,0,72); | |
200 | ||
201 | CreateTrackHisto(eventSelection,triggerClassName,centrality,"EtaRapidityMu", "Eta distribution vs Rapidity for #mu", nbinsRapidity,rapidityMin,rapidityMax,nbinsEta,etaMin,etaMax, fShouldSeparatePlusAndMinus); | |
202 | ||
203 | CreateTrackHisto(eventSelection,triggerClassName,centrality,"PtEtaMu", "P_{T} distribution vs Eta for #mu", nbinsEta,etaMin,etaMax, nbinsPt,ptMin,ptMax,fShouldSeparatePlusAndMinus); | |
204 | ||
205 | CreateTrackHisto(eventSelection,triggerClassName,centrality,"PtRapidityMu", "P_{T} distribution vs Rapidity for #mu", nbinsRapidity,rapidityMin,rapidityMax, nbinsPt,ptMin,ptMax,fShouldSeparatePlusAndMinus); | |
206 | ||
207 | CreateTrackHisto(eventSelection,triggerClassName,centrality,"PtPhiMu", "P_{T} distribution vs phi for #mu", nbinsPhi,phiMin,phiMax, nbinsPt,ptMin,ptMax,fShouldSeparatePlusAndMinus); | |
208 | ||
209 | ||
210 | CreateTrackHisto(eventSelection,triggerClassName,centrality,"PEtaMu", "P distribution for #mu",nbinsEta,etaMin,etaMax,nbinsP,pMin,pMax,fShouldSeparatePlusAndMinus); | |
211 | ||
212 | Double_t chi2min = 0; | |
213 | Double_t chi2max = 20; | |
214 | Int_t nbinchi2 = GetNbins(chi2min,chi2max,0.05); | |
215 | ||
216 | CreateTrackHisto(eventSelection, triggerClassName, centrality, "Chi2Mu", "chisquare per NDF #mu", nbinchi2, chi2min, chi2max,-1, 0.0, 0.0, fShouldSeparatePlusAndMinus); | |
217 | ||
218 | Double_t xmin = 0; | |
219 | Double_t xmax = 150; | |
220 | Int_t nbins = GetNbins(xmin,xmax,2.0); | |
221 | ||
222 | CreateTrackHisto(eventSelection,triggerClassName,centrality,"dcaP23Mu","#mu DCA vs P for 2-3 degrees;P (GeV);DCA (cm)",nbinsP,pMin,pMax,nbins,xmin,xmax,fShouldSeparatePlusAndMinus); | |
223 | ||
224 | CreateTrackHisto(eventSelection,triggerClassName,centrality,"dcaP310Mu","#mu DCA vs P for 3-10 degrees;P (GeV);DCA (cm)",nbinsP,pMin,pMax,nbins,xmin,xmax,fShouldSeparatePlusAndMinus); | |
225 | ||
226 | CreateTrackHisto(eventSelection,triggerClassName,centrality,"dcaPwPtCut23Mu","#mu DCA vs P for 2-3 degrees with Pt Cut;P (GeV);DCA (cm)",nbinsP,pMin,pMax,nbins,xmin,xmax,fShouldSeparatePlusAndMinus); | |
227 | ||
228 | CreateTrackHisto(eventSelection,triggerClassName,centrality,"dcaPwPtCut310Mu","#mu DCA vs P for 3-10 degrees with Pt Cut;P (GeV);DCA (cm)",nbinsP,pMin,pMax,nbins,xmin,xmax,fShouldSeparatePlusAndMinus); | |
229 | ||
230 | } | |
231 | ||
232 | //_____________________________________________________________________________ | |
233 | void AliAnalysisMuMuSingle::FillHistosForTrack(const char* eventSelection, | |
234 | const char* triggerClassName, | |
235 | const char* centrality, | |
236 | const char* trackCutName, | |
237 | const AliVParticle& track) | |
238 | { | |
239 | /// Fill histograms for one track | |
240 | ||
241 | if (!AliAnalysisMuonUtility::IsMuonTrack(&track) ) return; | |
242 | ||
243 | if ( HasMC() ) | |
244 | { | |
245 | MuonTrackCuts()->SetIsMC(); | |
246 | } | |
247 | ||
248 | TLorentzVector p(track.Px(),track.Py(),track.Pz(), | |
249 | TMath::Sqrt(AliAnalysisMuonUtility::MuonMass2()+track.P()*track.P())); | |
250 | ||
251 | ||
252 | TString charge(""); | |
253 | ||
254 | if ( ShouldSeparatePlusAndMinus() ) | |
255 | { | |
256 | if ( track.Charge() < 0 ) | |
257 | { | |
258 | charge = "Minus"; | |
259 | } | |
260 | else | |
261 | { | |
262 | charge = "Plus"; | |
263 | } | |
264 | } | |
265 | ||
266 | Double_t dca = EAGetTrackDCA(track); | |
267 | ||
268 | Double_t theta = AliAnalysisMuonUtility::GetThetaAbsDeg(&track); | |
269 | ||
270 | if (!IsHistogramDisabled("Chi2MatchTrigger")) | |
271 | { | |
272 | Histo(eventSelection,triggerClassName,centrality,trackCutName,"Chi2MatchTrigger")->Fill(AliAnalysisMuonUtility::GetChi2MatchTrigger(&track)); | |
273 | } | |
274 | ||
275 | if (!IsHistogramDisabled("EtaRapidityMu*")) | |
276 | { | |
277 | Histo(eventSelection,triggerClassName,centrality,trackCutName,Form("EtaRapidityMu%s",charge.Data()))->Fill(p.Rapidity(),p.Eta()); | |
278 | } | |
279 | ||
280 | if (!IsHistogramDisabled("PtEtaMu*")) | |
281 | { | |
282 | Histo(eventSelection,triggerClassName,centrality,trackCutName,Form("PtEtaMu%s",charge.Data()))->Fill(p.Eta(),p.Pt()); | |
283 | } | |
284 | ||
285 | if (!IsHistogramDisabled("PtRapidityMu*")) | |
286 | { | |
287 | Histo(eventSelection,triggerClassName,centrality,trackCutName,Form("PtRapidityMu%s",charge.Data()))->Fill(p.Rapidity(),p.Pt()); | |
288 | } | |
289 | ||
290 | if (!IsHistogramDisabled("PEtaMu*")) | |
291 | { | |
292 | Histo(eventSelection,triggerClassName,centrality,trackCutName,Form("PEtaMu%s",charge.Data()))->Fill(p.Eta(),p.P()); | |
293 | } | |
294 | ||
295 | if (!IsHistogramDisabled("PtPhiMu*")) | |
296 | { | |
297 | Histo(eventSelection,triggerClassName,centrality,trackCutName,Form("PtPhiMu%s",charge.Data()))->Fill(p.Phi(),p.Pt()); | |
298 | } | |
299 | ||
300 | if (!IsHistogramDisabled("Chi2Mu*")) | |
301 | { | |
302 | Histo(eventSelection,triggerClassName,centrality,trackCutName,Form("Chi2Mu%s",charge.Data()))->Fill(AliAnalysisMuonUtility::GetChi2perNDFtracker(&track)); | |
303 | } | |
304 | ||
305 | if ( theta >= 2.0 && theta < 3.0 ) | |
306 | { | |
307 | ||
308 | if (!IsHistogramDisabled("dcaP23Mu*")) | |
309 | { | |
310 | Histo(eventSelection,triggerClassName,centrality,trackCutName,Form("dcaP23Mu%s",charge.Data()))->Fill(p.P(),dca); | |
311 | } | |
312 | ||
313 | if ( p.Pt() > 2 ) | |
314 | { | |
315 | if (!IsHistogramDisabled("dcaPwPtCut23Mu*")) | |
316 | { | |
317 | Histo(eventSelection,triggerClassName,centrality,trackCutName,Form("dcaPwPtCut23Mu%s",charge.Data()))->Fill(p.P(),dca); | |
318 | } | |
319 | } | |
320 | } | |
321 | else if ( theta >= 3.0 && theta < 10.0 ) | |
322 | { | |
323 | if (!IsHistogramDisabled("dcaP310Mu*")) | |
324 | { | |
325 | Histo(eventSelection,triggerClassName,centrality,trackCutName,Form("dcaP310Mu%s",charge.Data()))->Fill(p.P(),dca); | |
326 | } | |
327 | if ( p.Pt() > 2 ) | |
328 | { | |
329 | if (!IsHistogramDisabled("dcaPwPtCut310Mu*")) | |
330 | { | |
331 | Histo(eventSelection,triggerClassName,centrality,trackCutName,Form("dcaPwPtCut310Mu%s",charge.Data()))->Fill(p.P(),dca); | |
332 | } | |
333 | } | |
334 | } | |
335 | } | |
336 | ||
337 | //_____________________________________________________________________________ | |
338 | AliMuonTrackCuts* AliAnalysisMuMuSingle::MuonTrackCuts() | |
339 | { | |
340 | /// Get (and create the first time) our internal track cuts | |
341 | if (!fMuonTrackCuts) | |
342 | { | |
343 | fMuonTrackCuts = new AliMuonTrackCuts; | |
344 | ||
345 | fMuonTrackCuts->SetAllowDefaultParams(kTRUE); | |
346 | ||
347 | fMuonTrackCuts->SetFilterMask(AliMuonTrackCuts::kMuEta | | |
348 | AliMuonTrackCuts::kMuThetaAbs | | |
349 | AliMuonTrackCuts::kMuPdca | | |
350 | AliMuonTrackCuts::kMuMatchApt | | |
351 | AliMuonTrackCuts::kMuMatchLpt | | |
352 | AliMuonTrackCuts::kMuMatchHpt | | |
353 | AliMuonTrackCuts::kMuTrackChiSquare); | |
354 | ||
355 | } | |
356 | ||
357 | return fMuonTrackCuts; | |
358 | } | |
359 | ||
360 | //_____________________________________________________________________________ | |
361 | void AliAnalysisMuMuSingle::SetMuonTrackCuts(const AliMuonTrackCuts& trackCuts) | |
362 | { | |
363 | /// Set our muontrackcuts from external source | |
364 | delete fMuonTrackCuts; | |
365 | fMuonTrackCuts = static_cast<AliMuonTrackCuts*>(trackCuts.Clone()); | |
366 | } |