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1 | /************************************************************************** | |
2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
7 | * Permission to use, copy, modify and distribute this software and its * | |
8 | * documentation strictly for non-commercial purposes is hereby granted * | |
9 | * without fee, provided that the above copyright notice appears in all * | |
10 | * copies and that both the copyright notice and this permission notice * | |
11 | * appear in the supporting documentation. The authors make no claims * | |
12 | * about the suitability of this software for any purpose. It is * | |
13 | * provided "as is" without express or implied warranty. * | |
14 | **************************************************************************/ | |
15 | ||
16 | /* $Id$ */ | |
17 | ||
18 | // Macro (upgraded version of MUONmassPlot_ESD.C, better handling of Jpsi) to make : | |
19 | // 1) Ntuple (Ktuple) containing Upsilon kinematics variables (from kinematics.root files) | |
20 | // 2) Ntuple (ESDtuple) containing Upsilon kinematics variables from reconstruction and | |
21 | // combinations of 2 muons with opposite charges (ESDtupleBck will be used later) | |
22 | // 3) Some QA histograms | |
23 | // Ntuple are stored in the file MUONefficiency.root and ESD tree and QA histograms in AliESDs.root | |
24 | ||
25 | // Christophe Suire, IPN Orsay | |
26 | ||
27 | ||
28 | ||
29 | // Arguments: | |
30 | // FirstEvent (default 0) | |
31 | // LastEvent (default 1.e6) | |
32 | // ResType (default 553) | |
33 | // 553 for Upsilon, 443 for J/Psi | |
34 | // Chi2Cut (default 100) | |
35 | // to keep only tracks with chi2 per d.o.f. < Chi2Cut | |
36 | ||
37 | ||
38 | ||
39 | #if !defined(__CINT__) || defined(__MAKECINT__) | |
40 | // ROOT includes | |
41 | #include "TTree.h" | |
42 | #include "TNtuple.h" | |
43 | #include "TBranch.h" | |
44 | #include "TClonesArray.h" | |
45 | #include "TLorentzVector.h" | |
46 | #include "TFile.h" | |
47 | #include "TH1.h" | |
48 | #include "TH2.h" | |
49 | #include "TParticle.h" | |
50 | #include "TTree.h" | |
51 | #include "TString.h" | |
52 | #include <Riostream.h> | |
53 | ||
54 | // STEER includes | |
55 | #include "AliRun.h" | |
56 | #include "AliRunLoader.h" | |
57 | #include "AliHeader.h" | |
58 | #include "AliLoader.h" | |
59 | #include "AliStack.h" | |
60 | #include "AliMagFMaps.h" | |
61 | #include "AliESD.h" | |
62 | #include "AliTracker.h" | |
63 | ||
64 | // MUON includes | |
65 | #include "AliMUONTrackParam.h" | |
66 | #include "AliMUONTrackExtrap.h" | |
67 | #include "AliESDMuonTrack.h" | |
68 | #endif | |
69 | ||
70 | ||
71 | Bool_t MUONefficiency( Int_t ResType = 553, Int_t FirstEvent = 0, Int_t LastEvent = 1000000, | |
72 | char* esdFileName = "AliESDs.root", char* filename = "galice.root") | |
73 | { // MUONefficiency starts | |
74 | ||
75 | Double_t MUON_MASS = 0.105658369; | |
76 | Double_t UPSILON_MASS = 9.4603 ; | |
77 | Double_t JPSI_MASS = 3.097; | |
78 | ||
79 | // Upper and lower bound for counting entries in the mass peak | |
80 | // +/- 300 MeV/c^2 in this case. | |
81 | Float_t countingRange = 0.300 ; | |
82 | ||
83 | Float_t massResonance = 5.; | |
84 | Float_t invMassMinInPeak = 0. ; | |
85 | Float_t invMassMaxInPeak = 0. ; | |
86 | ||
87 | Float_t nBinsPerGev = 40 ; | |
88 | Float_t invMassMin = 0; Float_t invMassMax = 20; | |
89 | Float_t ptMinResonance = 0 ; Float_t ptMaxResonance = 20 ; Int_t ptBinsResonance = 100; | |
90 | ||
91 | if (ResType==443) { | |
92 | massResonance = JPSI_MASS ; | |
93 | invMassMinInPeak = JPSI_MASS - countingRange ; invMassMaxInPeak = JPSI_MASS + countingRange ; | |
94 | //limits for histograms | |
95 | invMassMin = 0 ; invMassMax = 6.; | |
96 | ptMinResonance = 0 ; ptMaxResonance = 20 ; ptBinsResonance = 100; | |
97 | } | |
98 | if (ResType==553) { | |
99 | massResonance = UPSILON_MASS; | |
100 | invMassMinInPeak = UPSILON_MASS - countingRange ; invMassMaxInPeak = UPSILON_MASS + countingRange; | |
101 | //limits for histograms | |
102 | invMassMin = 0 ; invMassMax = 12.; | |
103 | ptMinResonance = 0 ; ptMaxResonance = 20 ; ptBinsResonance = 100; | |
104 | } | |
105 | ||
106 | // Single Tracks muon cuts | |
107 | Float_t Chi2Cut = 100.; | |
108 | Float_t PtCutMin = 0. ; | |
109 | Float_t PtCutMax = 10000. ; | |
110 | ||
111 | ||
112 | // Limits for histograms | |
113 | Float_t ptMinMuon = 0. ; Float_t ptMaxMuon = 20.; Int_t ptBinsMuon = 100 ; | |
114 | Float_t pMinMuon = 0. ; Float_t pMaxMuon = 200.; Int_t pBinsMuon = 100 ; | |
115 | ||
116 | ||
117 | //Reset ROOT and connect tree file | |
118 | gROOT->Reset(); | |
119 | ||
120 | // Printing Level | |
121 | Int_t PRINTLEVEL = 0 ; | |
122 | ||
123 | //for kinematic, i.e. reference tracks | |
124 | TNtuple *Ktuple = new TNtuple("Ktuple","Kinematics NTuple","ev:npart:id:idmo:idgdmo:p:pt:y:theta:pseudorap:vx:vy:vz"); | |
125 | ||
126 | //for reconstruction | |
127 | TH1F *hPtMuon = new TH1F("hPtMuon", "Muon Pt (GeV/c)", ptBinsMuon, ptMinMuon, ptMaxMuon); | |
128 | TH1F *hPtMuonPlus = new TH1F("hPtMuonPlus", "Muon+ Pt (GeV/c)", ptBinsMuon, ptMinMuon, ptMaxMuon); | |
129 | TH1F *hPtMuonMinus = new TH1F("hPtMuonMinus", "Muon- Pt (GeV/c)", ptBinsMuon, ptMinMuon, ptMaxMuon); | |
130 | TH1F *hPMuon = new TH1F("hPMuon", "Muon P (GeV/c)", pBinsMuon, pMinMuon, pMaxMuon); | |
131 | ||
132 | TH1F *hInvMassAll; | |
133 | TH1F *hInvMassBg; | |
134 | TH2F *hInvMassAll_vs_Pt; | |
135 | TH2F *hInvMassBgk_vs_Pt; | |
136 | TH1F *hInvMassRes; | |
137 | ||
138 | ||
139 | hInvMassAll = new TH1F("hInvMassAll", "Mu+Mu- invariant mass (GeV/c2)", (Int_t) (nBinsPerGev*(invMassMax - invMassMin)), invMassMin, invMassMax); | |
140 | hInvMassBg = new TH1F("hInvMassBg", "Mu+Mu- invariant mass BG(GeV/c2)", (Int_t) (nBinsPerGev*(invMassMax- invMassMin)), invMassMin, invMassMax); | |
141 | hInvMassAll_vs_Pt = new TH2F("hInvMassAll_vs_Pt","hInvMassAll_vs_Pt",(Int_t) (nBinsPerGev*(invMassMax- invMassMin)), invMassMin, invMassMax,ptBinsResonance,ptMinResonance,ptMaxResonance); | |
142 | hInvMassBgk_vs_Pt = new TH2F("hInvMassBgk_vs_Pt","hInvMassBgk_vs_Pt",(Int_t) (nBinsPerGev*(invMassMax- invMassMin)), invMassMin, invMassMax,ptBinsResonance,ptMinResonance,ptMaxResonance); | |
143 | ||
144 | hInvMassRes = new TH1F("hInvMassRes", "Mu+Mu- invariant mass (GeV/c2) around Resonance",(Int_t) (nBinsPerGev*3*countingRange*2),massResonance-3*countingRange,massResonance+3*countingRange); | |
145 | ||
146 | TH1F *hPrimaryVertex = new TH1F("hPrimaryVertex","SPD reconstructed Z vertex",150,-15,15); | |
147 | TH1F *hChi2PerDof = new TH1F("hChi2PerDof", "Muon track chi2/d.o.f.", 100, 0., 20.); | |
148 | TH1F *hNumberOfTrack = new TH1F("hNumberOfTrack","nb of track /evt ",20,-0.5,19.5); | |
149 | TH1F *hRapMuon = new TH1F("hRapMuon"," Muon Rapidity",50,-4.5,-2); | |
150 | TH1F *hRapResonance = new TH1F("hRapResonance"," Resonance Rapidity",50,-4.5,-2); | |
151 | TH1F *hPtResonance = new TH1F("hPtResonance", "Resonance Pt (GeV/c)", 100, 0., 20.); | |
152 | TH2F *hThetaPhiPlus = new TH2F("hThetaPhiPlus", "Theta vs Phi +", 760, -190., 190., 400, 160., 180.); | |
153 | TH2F *hThetaPhiMinus = new TH2F("hThetaPhiMinus", "Theta vs Phi -", 760, -190., 190., 400, 160., 180.); | |
154 | ||
155 | TNtuple *ESDtuple = new TNtuple("ESDtuple","Reconstructed Mu+Mu- pairs and Upsilon","ev:tw:pt:y:theta:minv:pt1:y1:theta1:q1:trig1:pt2:y2:theta2:q2:trig2"); | |
156 | TNtuple *ESDtupleBck = new TNtuple("ESDtupleBck","Reconstructed Mu+Mu- pairs for Background","ev:pt:y:theta:minv:pt1:y1:theta1:pt2:y2:theta2"); | |
157 | ||
158 | ||
159 | // Variables | |
160 | Int_t EventInMass = 0; | |
161 | Int_t EventInMassMatch = 0; | |
162 | Int_t NbTrigger = 0; | |
163 | Int_t ptTrig = 0; | |
164 | ||
165 | Double_t fXVertex=0; | |
166 | Double_t fYVertex=0; | |
167 | Double_t fZVertex=0; | |
168 | ||
169 | Double_t thetaX, thetaY, pYZ; | |
170 | Double_t fPxRec1, fPyRec1, fPzRec1, fE1; | |
171 | Double_t fPxRec2, fPyRec2, fPzRec2, fE2; | |
172 | Int_t fCharge1, fCharge2; | |
173 | ||
174 | Int_t ntrackhits, nevents; | |
175 | Int_t nprocessedevents = 0 ; | |
176 | Double_t fitfmin; | |
177 | ||
178 | TLorentzVector fV1, fV2, fVtot; | |
179 | ||
180 | // set mag field | |
181 | // waiting for mag field in CDB | |
182 | printf("Loading field map...\n"); | |
183 | AliMagFMaps* field = new AliMagFMaps("Maps","Maps", 1, 1., 10., AliMagFMaps::k5kG); | |
184 | AliTracker::SetFieldMap(field, kFALSE); | |
185 | ||
186 | // open run loader and load gAlice, kinematics and header | |
187 | AliRunLoader* runLoader = AliRunLoader::Open(filename); | |
188 | if (!runLoader) { | |
189 | Error("MUONefficiency", "getting run loader from file %s failed", filename); | |
190 | return kFALSE; | |
191 | } | |
192 | ||
193 | runLoader->LoadgAlice(); | |
194 | gAlice = runLoader->GetAliRun(); | |
195 | if (!gAlice) { | |
196 | Error("MUONefficiency", "no galice object found"); | |
197 | return kFALSE; | |
198 | } | |
199 | ||
200 | // open the ESD file | |
201 | TFile* esdFile = TFile::Open(esdFileName); | |
202 | if (!esdFile || !esdFile->IsOpen()) { | |
203 | Error("MUONefficiency", "opening ESD file %s failed", esdFileName); | |
204 | return kFALSE; | |
205 | } | |
206 | ||
207 | AliESD* esd = new AliESD(); | |
208 | TTree* tree = (TTree*) esdFile->Get("esdTree"); | |
209 | if (!tree) { | |
210 | Error("CheckESD", "no ESD tree found"); | |
211 | return kFALSE; | |
212 | } | |
213 | tree->SetBranchAddress("ESD", &esd); | |
214 | ||
215 | runLoader->LoadHeader(); | |
216 | nevents = runLoader->GetNumberOfEvents(); | |
217 | AliMUONTrackParam trackParam; | |
218 | ||
219 | // to access the particle Stack | |
220 | runLoader->LoadKinematics("READ"); | |
221 | ||
222 | Int_t numberOfGeneratedResonances = 0 ; | |
223 | ||
224 | TParticle *particle; | |
225 | ||
226 | Int_t track1Trigger = 0 ; | |
227 | Float_t track1TriggerChi2 = 0 ; | |
228 | Int_t track2Trigger = 0 ; | |
229 | Float_t track2TriggerChi2 = 0 ; | |
230 | ||
231 | ||
232 | // Loop over events | |
233 | for (Int_t iEvent = FirstEvent; iEvent <= TMath::Min(LastEvent, nevents - 1); iEvent++) { // Start event loop | |
234 | ||
235 | if (iEvent%1000 == 0 ) | |
236 | printf("\n Nb of events analysed: %d \n",iEvent); | |
237 | ||
238 | // get current event | |
239 | runLoader->GetEvent(iEvent); | |
240 | nprocessedevents++; | |
241 | ||
242 | // get the stack and fill the kine tree | |
243 | AliStack *theStack = runLoader->Stack(); | |
244 | if (PRINTLEVEL > 0) theStack->DumpPStack (); | |
245 | ||
246 | Int_t nparticles = (Int_t)runLoader->TreeK()->GetEntries(); | |
247 | Int_t nprimarypart = theStack->GetNprimary(); | |
248 | Int_t ntracks = theStack->GetNtrack(); | |
249 | ||
250 | if (PRINTLEVEL || (iEvent%100==0)) printf("\n >>> Event %d \n",iEvent); | |
251 | if (PRINTLEVEL) cout << nprimarypart << " Particles generated (total is " << ntracks << ")"<< endl ; | |
252 | ||
253 | for(Int_t iparticle=0; iparticle<nparticles; iparticle++) { // Start loop over particles | |
254 | particle = theStack->Particle(iparticle); | |
255 | ||
256 | Int_t muId = particle->GetPdgCode(); | |
257 | Int_t muM = particle->GetFirstMother(); | |
258 | Int_t muGM = 0; | |
259 | Float_t muP = particle->P(); | |
260 | Float_t muPt = TMath::Sqrt(particle->Px()*particle->Px()+particle->Py()*particle->Py()); | |
261 | Float_t muY = 0.5*TMath::Log((particle->Energy()+particle->Pz()+1.e-13)/(particle->Energy()-particle->Pz()+1.e-13)); | |
262 | if (muM >= 0) { | |
263 | TParticle *theMum = theStack->Particle(muM); | |
264 | muM = theMum->GetPdgCode(); | |
265 | muGM = theMum->GetFirstMother() ; | |
266 | if (muGM >= 0){ | |
267 | TParticle *grandMa = theStack->Particle(muGM); | |
268 | muGM = grandMa->GetPdgCode(); | |
269 | } | |
270 | else muGM=0; | |
271 | } | |
272 | else muM=0; | |
273 | ||
274 | if (muId==ResType) numberOfGeneratedResonances++; | |
275 | ||
276 | ||
277 | Float_t muT = particle->Theta()*180/TMath::Pi(); | |
278 | Float_t muE = particle->Eta(); | |
279 | ||
280 | Float_t muVx = particle->Vx(); | |
281 | Float_t muVy = particle->Vy(); | |
282 | Float_t muVz = particle->Vz(); | |
283 | ||
284 | // If a write error occurs, the number of bytes returned is -1. | |
285 | // If no data are written, because e.g. the branch is disabled, | |
286 | // the number of bytes returned is 0. | |
287 | Int_t errCode = Ktuple->Fill(iEvent,nparticles,muId,muM,muGM,muP,muPt,muY,muT,muE,muVx,muVy,muVz); | |
288 | if (PRINTLEVEL || errCode < 1) printf("iEvent %d,nparticles %d,muId %d,muM %d,muGM %d,muP %.2f,muPt %.2f,muY %.2f,muT %.2f,muE %.2f,muVx %.2f,muVy %.2f,muVz %.2f \n", iEvent,nparticles,muId,muM,muGM,muP,muPt,muY,muT,muE,muVx,muVy,muVz); | |
289 | ||
290 | } // End loop over particles | |
291 | ||
292 | ||
293 | ||
294 | // get the event summary data | |
295 | tree->GetEvent(iEvent); | |
296 | if (!esd) { | |
297 | Error("CheckESD", "no ESD object found for event %d", iEvent); | |
298 | return kFALSE; | |
299 | } | |
300 | ||
301 | // get the SPD reconstructed vertex (vertexer) and fill the histogram | |
302 | AliESDVertex* Vertex = (AliESDVertex*) esd->GetVertex(); | |
303 | if (Vertex->GetNContributors()) { | |
304 | fZVertex = Vertex->GetZv(); | |
305 | fYVertex = Vertex->GetYv(); | |
306 | fXVertex = Vertex->GetXv(); | |
307 | } | |
308 | hPrimaryVertex->Fill(fZVertex); | |
309 | ||
310 | Int_t triggerWord = esd->GetTriggerMask(); | |
311 | Int_t nTracks = (Int_t)esd->GetNumberOfMuonTracks() ; | |
312 | ||
313 | if (PRINTLEVEL > 0){ | |
314 | printf("\n Nb of events analysed: %d \n",iEvent); | |
315 | cout << " number of tracks: " << nTracks <<endl; | |
316 | } | |
317 | ||
318 | // set the magnetic field for track extrapolations | |
319 | AliMUONTrackExtrap::SetField(AliTracker::GetFieldMap()); | |
320 | // loop over all reconstructed tracks (also first track of combination) | |
321 | for (Int_t iTrack = 0; iTrack < nTracks; iTrack++) { | |
322 | ||
323 | AliESDMuonTrack* muonTrack = esd->GetMuonTrack(iTrack); | |
324 | ||
325 | if (!Vertex->GetNContributors()) { | |
326 | //re-extrapolate to vertex, if not kown before. | |
327 | trackParam.GetParamFrom(*muonTrack); | |
328 | AliMUONTrackExtrap::ExtrapToVertex(&trackParam, fXVertex, fYVertex, fZVertex); | |
329 | trackParam.SetParamFor(*muonTrack); | |
330 | } | |
331 | ||
332 | // Trigger | |
333 | if (PRINTLEVEL > 5) cout << "MatchTrigger " << muonTrack->GetMatchTrigger() << " and Chi2 of matching tracks " << track1TriggerChi2 << endl ; | |
334 | track1Trigger = muonTrack->GetMatchTrigger(); | |
335 | if (track1Trigger) | |
336 | track1TriggerChi2 = muonTrack->GetChi2MatchTrigger(); | |
337 | else | |
338 | track1TriggerChi2 = 0. ; | |
339 | ||
340 | thetaX = muonTrack->GetThetaX(); | |
341 | thetaY = muonTrack->GetThetaY(); | |
342 | ||
343 | pYZ = 1./TMath::Abs(muonTrack->GetInverseBendingMomentum()); | |
344 | fPzRec1 = - pYZ / TMath::Sqrt(1.0 + TMath::Tan(thetaY)*TMath::Tan(thetaY)); | |
345 | fPxRec1 = fPzRec1 * TMath::Tan(thetaX); | |
346 | fPyRec1 = fPzRec1 * TMath::Tan(thetaY); | |
347 | fCharge1 = Int_t(TMath::Sign(1.,muonTrack->GetInverseBendingMomentum())); | |
348 | ||
349 | fE1 = TMath::Sqrt(MUON_MASS * MUON_MASS + fPxRec1 * fPxRec1 + fPyRec1 * fPyRec1 + fPzRec1 * fPzRec1); | |
350 | fV1.SetPxPyPzE(fPxRec1, fPyRec1, fPzRec1, fE1); | |
351 | ||
352 | ntrackhits = muonTrack->GetNHit(); | |
353 | fitfmin = muonTrack->GetChi2(); | |
354 | ||
355 | // transverse momentum | |
356 | Float_t pt1 = fV1.Pt(); | |
357 | ||
358 | // total momentum | |
359 | Float_t p1 = fV1.P(); | |
360 | ||
361 | // Rapidity | |
362 | Float_t rapMuon1 = fV1.Rapidity(); | |
363 | ||
364 | // chi2 per d.o.f. | |
365 | ||
366 | Float_t ch1 = fitfmin / (2.0 * ntrackhits - 5); | |
367 | if (PRINTLEVEL > 5 ) printf(" px %f py %f pz %f pt %f NHits %d Norm.chi2 %f charge %d\n",fPxRec1, fPyRec1, fPzRec1, pt1, ntrackhits, ch1, fCharge1); | |
368 | ||
369 | ||
370 | if ((ch1 < Chi2Cut) && (pt1 > PtCutMin) && (pt1 < PtCutMax)) { // condition for good track (Chi2Cut and PtCut) | |
371 | if (PRINTLEVEL > 8) cout << "inside pt and chi2 cuts " << endl ; | |
372 | ||
373 | // fill histos hPtMuon and hChi2PerDof | |
374 | hPtMuon->Fill(pt1); | |
375 | hPMuon->Fill(p1); | |
376 | hChi2PerDof->Fill(ch1); | |
377 | hRapMuon->Fill(rapMuon1); | |
378 | ||
379 | if (fCharge1 > 0) { | |
380 | hPtMuonPlus->Fill(pt1); | |
381 | hThetaPhiPlus->Fill(TMath::ATan2(fPyRec1,fPxRec1)*180./TMath::Pi(),TMath::ATan2(pt1,fPzRec1)*180./3.1415); | |
382 | } else { | |
383 | hPtMuonMinus->Fill(pt1); | |
384 | hThetaPhiMinus->Fill(TMath::ATan2(fPyRec1,fPxRec1)*180./TMath::Pi(),TMath::ATan2(pt1,fPzRec1)*180./3.1415); | |
385 | } | |
386 | ||
387 | // loop over second track of combination | |
388 | for (Int_t iTrack2 = iTrack + 1; iTrack2 < nTracks; iTrack2++) { | |
389 | ||
390 | AliESDMuonTrack* muonTrack = esd->GetMuonTrack(iTrack2); | |
391 | ||
392 | if (!Vertex->GetNContributors()) { | |
393 | trackParam.GetParamFrom(*muonTrack); | |
394 | AliMUONTrackExtrap::ExtrapToVertex(&trackParam, fXVertex, fYVertex, fZVertex); | |
395 | trackParam.SetParamFor(*muonTrack); | |
396 | } | |
397 | ||
398 | track2Trigger = muonTrack->GetMatchTrigger(); | |
399 | if (track2Trigger) | |
400 | track2TriggerChi2 = muonTrack->GetChi2MatchTrigger(); | |
401 | else | |
402 | track2TriggerChi2 = 0. ; | |
403 | ||
404 | thetaX = muonTrack->GetThetaX(); | |
405 | thetaY = muonTrack->GetThetaY(); | |
406 | ||
407 | pYZ = 1./TMath::Abs(muonTrack->GetInverseBendingMomentum()); | |
408 | fPzRec2 = - pYZ / TMath::Sqrt(1.0 + TMath::Tan(thetaY)*TMath::Tan(thetaY)); | |
409 | fPxRec2 = fPzRec2 * TMath::Tan(thetaX); | |
410 | fPyRec2 = fPzRec2 * TMath::Tan(thetaY); | |
411 | fCharge2 = Int_t(TMath::Sign(1.,muonTrack->GetInverseBendingMomentum())); | |
412 | ||
413 | fE2 = TMath::Sqrt(MUON_MASS * MUON_MASS + fPxRec2 * fPxRec2 + fPyRec2 * fPyRec2 + fPzRec2 * fPzRec2); | |
414 | fV2.SetPxPyPzE(fPxRec2, fPyRec2, fPzRec2, fE2); | |
415 | ||
416 | ntrackhits = muonTrack->GetNHit(); | |
417 | fitfmin = muonTrack->GetChi2(); | |
418 | ||
419 | // transverse momentum | |
420 | Float_t pt2 = fV2.Pt(); | |
421 | ||
422 | // chi2 per d.o.f. | |
423 | Float_t ch2 = fitfmin / (2.0 * ntrackhits - 5); | |
424 | ||
425 | ||
426 | // condition for good track (Chi2Cut and PtCut) | |
427 | if ((ch2 < Chi2Cut) && (pt2 > PtCutMin) && (pt2 < PtCutMax)) { | |
428 | ||
429 | // condition for opposite charges | |
430 | if ((fCharge1 * fCharge2) == -1) { | |
431 | ||
432 | if (PRINTLEVEL > 8) cout << "---------> Now filling the Ntuple " << endl ; | |
433 | ||
434 | // invariant mass | |
435 | fVtot = fV1 + fV2; | |
436 | Float_t invMass = fVtot.M(); | |
437 | ||
438 | if (fCharge1 < 0){ //mu_minus is index 1 in the ntuple | |
439 | Float_t ESDFill[16] = {iEvent,triggerWord,fVtot.Pt(),fVtot.Rapidity(),fVtot.Theta()/TMath::Pi()*180,invMass,fV1.Pt(),fV1.Rapidity(),fV1.Theta()/TMath::Pi()*180,fCharge1,track1TriggerChi2,fV2.Pt(),fV2.Rapidity(),fV2.Theta()/TMath::Pi()*180,fCharge2,track2TriggerChi2}; | |
440 | ESDtuple->Fill(ESDFill); | |
441 | } | |
442 | else{ | |
443 | Float_t ESDFill[16] = {iEvent,triggerWord,fVtot.Pt(),fVtot.Rapidity(),fVtot.Theta()/TMath::Pi()*180,invMass,fV2.Pt(),fV2.Rapidity(),fV2.Theta()/TMath::Pi()*180,fCharge2,track2TriggerChi2,fV1.Pt(),fV1.Rapidity(),fV1.Theta()/TMath::Pi()*180,fCharge1,track1TriggerChi2}; | |
444 | ESDtuple->Fill(ESDFill); | |
445 | } | |
446 | ||
447 | // fill histos hInvMassAll and hInvMassRes | |
448 | hInvMassAll->Fill(invMass); | |
449 | hInvMassRes->Fill(invMass); | |
450 | hInvMassAll_vs_Pt->Fill(invMass,fVtot.Pt()); | |
451 | ||
452 | //trigger info | |
453 | if (ResType == 553) | |
454 | ptTrig = 0x20;// mask for Hpt unlike sign pair | |
455 | else if (ResType == 443) | |
456 | ptTrig = 0x10;// mask for Lpt unlike sign pair | |
457 | ||
458 | ||
459 | if (esd->GetTriggerMask() & ptTrig) NbTrigger++; | |
460 | ||
461 | if (invMass > invMassMinInPeak && invMass < invMassMaxInPeak) { | |
462 | EventInMass++; | |
463 | hRapResonance->Fill(fVtot.Rapidity()); | |
464 | hPtResonance->Fill(fVtot.Pt()); | |
465 | ||
466 | // match with trigger | |
467 | if (muonTrack->GetMatchTrigger() && (esd->GetTriggerMask() & ptTrig)) EventInMassMatch++; | |
468 | ||
469 | } | |
470 | ||
471 | } // if (fCharge1 * fCharge2) == -1) | |
472 | } // if ((ch2 < Chi2Cut) && (pt2 > PtCutMin) && (pt2 < PtCutMax)) | |
473 | } // for (Int_t iTrack2 = iTrack + 1; iTrack2 < iTrack; iTrack2++) | |
474 | } // if (ch1 < Chi2Cut) && (pt1 > PtCutMin)&& (pt1 < PtCutMax) ) | |
475 | } // for (Int_t iTrack = 0; iTrack < nrectracks; iTrack++) | |
476 | ||
477 | hNumberOfTrack->Fill(nTracks); | |
478 | // esdFile->Delete(); | |
479 | ||
480 | } // End of event loop | |
481 | ||
482 | ||
483 | // Loop over events for bg event | |
484 | ||
485 | Double_t thetaPlus, phiPlus; | |
486 | Double_t thetaMinus, phiMinus; | |
487 | Float_t PtMinus, PtPlus; | |
488 | ||
489 | for (Int_t iEvent = 0; iEvent < hInvMassAll->Integral(); iEvent++) { // Loop over events for bg event | |
490 | // according to Christian a 3d phi-theta-pt random pick would take better care | |
491 | // of all correlations | |
492 | ||
493 | hThetaPhiPlus->GetRandom2(phiPlus, thetaPlus); | |
494 | hThetaPhiMinus->GetRandom2(phiMinus,thetaMinus); | |
495 | PtPlus = hPtMuonPlus->GetRandom(); | |
496 | PtMinus = hPtMuonMinus->GetRandom(); | |
497 | ||
498 | fPxRec1 = PtPlus * TMath::Cos(TMath::Pi()/180.*phiPlus); | |
499 | fPyRec1 = PtPlus * TMath::Sin(TMath::Pi()/180.*phiPlus); | |
500 | fPzRec1 = PtPlus / TMath::Tan(TMath::Pi()/180.*thetaPlus); | |
501 | ||
502 | fE1 = TMath::Sqrt(MUON_MASS * MUON_MASS + fPxRec1 * fPxRec1 + fPyRec1 * fPyRec1 + fPzRec1 * fPzRec1); | |
503 | fV1.SetPxPyPzE(fPxRec1, fPyRec1, fPzRec1, fE1); | |
504 | ||
505 | fPxRec2 = PtMinus * TMath::Cos(TMath::Pi()/180.*phiMinus); | |
506 | fPyRec2 = PtMinus * TMath::Sin(TMath::Pi()/180.*phiMinus); | |
507 | fPzRec2 = PtMinus / TMath::Tan(TMath::Pi()/180.*thetaMinus); | |
508 | ||
509 | fE2 = TMath::Sqrt(MUON_MASS * MUON_MASS + fPxRec2 * fPxRec2 + fPyRec2 * fPyRec2 + fPzRec2 * fPzRec2); | |
510 | fV2.SetPxPyPzE(fPxRec2, fPyRec2, fPzRec2, fE2); | |
511 | ||
512 | // invariant mass | |
513 | fVtot = fV1 + fV2; | |
514 | ||
515 | // fill histos hInvMassAll and hInvMassRes | |
516 | hInvMassBg->Fill(fVtot.M()); | |
517 | hInvMassBgk_vs_Pt->Fill( fVtot.M(), fVtot.Pt() ); | |
518 | ||
519 | // Ntuple for background... more convenient | |
520 | ESDtupleBck->Fill(iEvent,fVtot.Pt(),fVtot.Rapidity(),fVtot.Theta()/TMath::Pi()*180,fVtot.M(),fV2.Pt(),fV2.Rapidity(),fV2.Theta()/TMath::Pi()*180,fV1.Pt(),fV1.Rapidity(),fV1.Theta()/TMath::Pi()*180); | |
521 | ||
522 | } // End loop over events for background | |
523 | ||
524 | ||
525 | // File for histograms and histogram booking | |
526 | TString outfilename = "MUONefficiency.root"; | |
527 | TFile *ntupleFile = new TFile(outfilename.Data(), "RECREATE"); | |
528 | ||
529 | Ktuple->Write(); | |
530 | ESDtuple->Write(); | |
531 | ESDtupleBck->Write(); | |
532 | ||
533 | ntupleFile->Close(); | |
534 | ||
535 | TFile *histoFile = new TFile("MUONhistos.root", "RECREATE"); | |
536 | hPrimaryVertex->Write(); | |
537 | hPtMuon->Write(); | |
538 | hPtMuonPlus->Write(); | |
539 | hPtMuonMinus->Write(); | |
540 | hPMuon->Write(); | |
541 | hChi2PerDof->Write(); | |
542 | hInvMassAll->Write(); | |
543 | hInvMassBg->Write(); | |
544 | hInvMassAll_vs_Pt ->Write(); | |
545 | hInvMassBgk_vs_Pt->Write(); | |
546 | hInvMassRes->Write(); | |
547 | hNumberOfTrack->Write(); | |
548 | hRapMuon ->Write(); | |
549 | hRapResonance ->Write(); | |
550 | hPtResonance ->Write(); | |
551 | hThetaPhiPlus ->Write(); | |
552 | hThetaPhiMinus ->Write(); | |
553 | histoFile->Close(); | |
554 | ||
555 | cout << "" << endl ; | |
556 | cout << "*************************************************" << endl; | |
557 | ||
558 | cout << "MUONefficiency : " << nprocessedevents << " events processed" << endl; | |
559 | if (ResType==443) | |
560 | cout << "Number of generated J/Psi (443) : " << numberOfGeneratedResonances << endl ; | |
561 | if (ResType==553) | |
562 | cout << "Number of generated Upsilon (553) :" << numberOfGeneratedResonances << endl ; | |
563 | cout << "Chi2Cut for muon tracks = " << Chi2Cut << endl; | |
564 | cout << "PtCutMin for muon tracks = " << PtCutMin << endl; | |
565 | cout << "PtCutMax for muon tracks = " << PtCutMax << endl; | |
566 | cout << "Entries (unlike sign dimuons) in the mass range ["<<invMassMinInPeak<<";"<<invMassMaxInPeak<<"] : " << EventInMass <<endl; | |
567 | if (ptTrig==0x800) cout << "Unlike Pair - All Pt" ; | |
568 | if (ptTrig==0x400) cout << "Unlike Pair - High Pt" ; | |
569 | if (ptTrig==0x200) cout << "Unlike Pair - Low Pt" ; | |
570 | cout << " triggers : " << NbTrigger << endl; | |
571 | ||
572 | cout << "Entries in the mass range with matching between reconstructed tracks and trigger tracks " << EventInMassMatch << endl; | |
573 | ||
574 | ||
575 | return kTRUE; | |
576 | } |