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