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d949b15e | 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 | ||
53399039 | 18 | // Macro (upgraded version of MUONmassPlot_ESD.C, better handling of Jpsi) to make : |
d949b15e | 19 | // 1) Ntuple (Ktuple) containing Upsilon kinematics variables (from kinematics.root files) |
20 | // 2) Ntuple (ESDtuple) containing Upsilon kinematics variables from reconstruction and | |
53399039 | 21 | // combinations of 2 muons with opposite charges (ESDtupleBck will be used later) |
d949b15e | 22 | // 3) Some QA histograms |
23 | // Ntuple are stored in the file MUONefficiency.root and ESD tree and QA histograms in AliESDs.root | |
24 | ||
53399039 | 25 | // Christophe Suire, IPN Orsay |
26 | ||
27 | ||
28 | ||
d949b15e | 29 | // Arguments: |
30 | // FirstEvent (default 0) | |
53399039 | 31 | // LastEvent (default 1.e6) |
d949b15e | 32 | // ResType (default 553) |
53399039 | 33 | // 553 for Upsilon, 443 for J/Psi |
d949b15e | 34 | // Chi2Cut (default 100) |
35 | // to keep only tracks with chi2 per d.o.f. < Chi2Cut | |
d949b15e | 36 | |
d949b15e | 37 | |
d949b15e | 38 | |
39 | #if !defined(__CINT__) || defined(__MAKECINT__) | |
40 | // ROOT includes | |
41 | #include "TTree.h" | |
53399039 | 42 | #include "TNtuple.h" |
d949b15e | 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> | |
8cde4af5 | 53 | #include <TGeoManager.h> |
da79ec88 | 54 | #include <TROOT.h> |
d949b15e | 55 | |
56 | // STEER includes | |
57 | #include "AliRun.h" | |
58 | #include "AliRunLoader.h" | |
59 | #include "AliHeader.h" | |
60 | #include "AliLoader.h" | |
61 | #include "AliStack.h" | |
3f6289e9 | 62 | #include "AliMagFMaps.h" |
1c2bdf00 | 63 | #include "AliESDEvent.h" |
54eb569f | 64 | #include "AliESDVertex.h" |
3f6289e9 | 65 | #include "AliTracker.h" |
d949b15e | 66 | |
67 | // MUON includes | |
cfc3191e | 68 | #include "AliMUONTrackParam.h" |
37827b29 | 69 | #include "AliMUONTrackExtrap.h" |
d949b15e | 70 | #include "AliESDMuonTrack.h" |
71 | #endif | |
72 | ||
8cde4af5 | 73 | // Arguments: |
74 | // ExtrapToVertex (default -1) | |
75 | // <0: no extrapolation; | |
76 | // =0: extrapolation to (0,0,0); | |
77 | // >0: extrapolation to ESDVertex if available, else to (0,0,0) | |
78 | // ResType (default 553) | |
79 | // 553 for Upsilon, anything else for J/Psi | |
d949b15e | 80 | |
6b092dfc | 81 | Bool_t MUONefficiency( char* filename = "galice.root", char* geoFilename = "geometry.root", char* esdFileName = "AliESDs.root", |
82 | Int_t ExtrapToVertex = -1, Int_t ResType = 553, Int_t FirstEvent = 0, Int_t LastEvent = 1000000 ) | |
d949b15e | 83 | { // MUONefficiency starts |
d949b15e | 84 | |
53399039 | 85 | Double_t MUON_MASS = 0.105658369; |
86 | Double_t UPSILON_MASS = 9.4603 ; | |
87 | Double_t JPSI_MASS = 3.097; | |
88 | ||
89 | // Upper and lower bound for counting entries in the mass peak | |
90 | // +/- 300 MeV/c^2 in this case. | |
91 | Float_t countingRange = 0.300 ; | |
92 | ||
93 | Float_t massResonance = 5.; | |
94 | Float_t invMassMinInPeak = 0. ; | |
95 | Float_t invMassMaxInPeak = 0. ; | |
96 | ||
97 | Float_t nBinsPerGev = 40 ; | |
98 | Float_t invMassMin = 0; Float_t invMassMax = 20; | |
99 | Float_t ptMinResonance = 0 ; Float_t ptMaxResonance = 20 ; Int_t ptBinsResonance = 100; | |
100 | ||
101 | if (ResType==443) { | |
102 | massResonance = JPSI_MASS ; | |
103 | invMassMinInPeak = JPSI_MASS - countingRange ; invMassMaxInPeak = JPSI_MASS + countingRange ; | |
104 | //limits for histograms | |
105 | invMassMin = 0 ; invMassMax = 6.; | |
106 | ptMinResonance = 0 ; ptMaxResonance = 20 ; ptBinsResonance = 100; | |
107 | } | |
108 | if (ResType==553) { | |
109 | massResonance = UPSILON_MASS; | |
110 | invMassMinInPeak = UPSILON_MASS - countingRange ; invMassMaxInPeak = UPSILON_MASS + countingRange; | |
111 | //limits for histograms | |
112 | invMassMin = 0 ; invMassMax = 12.; | |
113 | ptMinResonance = 0 ; ptMaxResonance = 20 ; ptBinsResonance = 100; | |
114 | } | |
115 | ||
116 | // Single Tracks muon cuts | |
117 | Float_t Chi2Cut = 100.; | |
118 | Float_t PtCutMin = 0. ; | |
119 | Float_t PtCutMax = 10000. ; | |
120 | ||
121 | ||
122 | // Limits for histograms | |
123 | Float_t ptMinMuon = 0. ; Float_t ptMaxMuon = 20.; Int_t ptBinsMuon = 100 ; | |
124 | Float_t pMinMuon = 0. ; Float_t pMaxMuon = 200.; Int_t pBinsMuon = 100 ; | |
d949b15e | 125 | |
53399039 | 126 | |
d949b15e | 127 | //Reset ROOT and connect tree file |
128 | gROOT->Reset(); | |
129 | ||
130 | // Printing Level | |
131 | Int_t PRINTLEVEL = 0 ; | |
d949b15e | 132 | |
133 | //for kinematic, i.e. reference tracks | |
134 | TNtuple *Ktuple = new TNtuple("Ktuple","Kinematics NTuple","ev:npart:id:idmo:idgdmo:p:pt:y:theta:pseudorap:vx:vy:vz"); | |
135 | ||
53399039 | 136 | //for reconstruction |
137 | TH1F *hPtMuon = new TH1F("hPtMuon", "Muon Pt (GeV/c)", ptBinsMuon, ptMinMuon, ptMaxMuon); | |
138 | TH1F *hPtMuonPlus = new TH1F("hPtMuonPlus", "Muon+ Pt (GeV/c)", ptBinsMuon, ptMinMuon, ptMaxMuon); | |
139 | TH1F *hPtMuonMinus = new TH1F("hPtMuonMinus", "Muon- Pt (GeV/c)", ptBinsMuon, ptMinMuon, ptMaxMuon); | |
140 | TH1F *hPMuon = new TH1F("hPMuon", "Muon P (GeV/c)", pBinsMuon, pMinMuon, pMaxMuon); | |
141 | ||
142 | TH1F *hInvMassAll; | |
143 | TH1F *hInvMassBg; | |
144 | TH2F *hInvMassAll_vs_Pt; | |
145 | TH2F *hInvMassBgk_vs_Pt; | |
d949b15e | 146 | TH1F *hInvMassRes; |
d949b15e | 147 | |
53399039 | 148 | |
149 | hInvMassAll = new TH1F("hInvMassAll", "Mu+Mu- invariant mass (GeV/c2)", (Int_t) (nBinsPerGev*(invMassMax - invMassMin)), invMassMin, invMassMax); | |
150 | hInvMassBg = new TH1F("hInvMassBg", "Mu+Mu- invariant mass BG(GeV/c2)", (Int_t) (nBinsPerGev*(invMassMax- invMassMin)), invMassMin, invMassMax); | |
151 | hInvMassAll_vs_Pt = new TH2F("hInvMassAll_vs_Pt","hInvMassAll_vs_Pt",(Int_t) (nBinsPerGev*(invMassMax- invMassMin)), invMassMin, invMassMax,ptBinsResonance,ptMinResonance,ptMaxResonance); | |
152 | hInvMassBgk_vs_Pt = new TH2F("hInvMassBgk_vs_Pt","hInvMassBgk_vs_Pt",(Int_t) (nBinsPerGev*(invMassMax- invMassMin)), invMassMin, invMassMax,ptBinsResonance,ptMinResonance,ptMaxResonance); | |
153 | ||
154 | hInvMassRes = new TH1F("hInvMassRes", "Mu+Mu- invariant mass (GeV/c2) around Resonance",(Int_t) (nBinsPerGev*3*countingRange*2),massResonance-3*countingRange,massResonance+3*countingRange); | |
155 | ||
cfc3191e | 156 | TH1F *hPrimaryVertex = new TH1F("hPrimaryVertex","SPD reconstructed Z vertex",150,-15,15); |
53399039 | 157 | TH1F *hChi2PerDof = new TH1F("hChi2PerDof", "Muon track chi2/d.o.f.", 100, 0., 20.); |
d949b15e | 158 | TH1F *hNumberOfTrack = new TH1F("hNumberOfTrack","nb of track /evt ",20,-0.5,19.5); |
159 | TH1F *hRapMuon = new TH1F("hRapMuon"," Muon Rapidity",50,-4.5,-2); | |
160 | TH1F *hRapResonance = new TH1F("hRapResonance"," Resonance Rapidity",50,-4.5,-2); | |
161 | TH1F *hPtResonance = new TH1F("hPtResonance", "Resonance Pt (GeV/c)", 100, 0., 20.); | |
162 | TH2F *hThetaPhiPlus = new TH2F("hThetaPhiPlus", "Theta vs Phi +", 760, -190., 190., 400, 160., 180.); | |
163 | TH2F *hThetaPhiMinus = new TH2F("hThetaPhiMinus", "Theta vs Phi -", 760, -190., 190., 400, 160., 180.); | |
53399039 | 164 | |
d949b15e | 165 | 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"); |
166 | TNtuple *ESDtupleBck = new TNtuple("ESDtupleBck","Reconstructed Mu+Mu- pairs for Background","ev:pt:y:theta:minv:pt1:y1:theta1:pt2:y2:theta2"); | |
167 | ||
168 | ||
53399039 | 169 | // Variables |
d949b15e | 170 | Int_t EventInMass = 0; |
53399039 | 171 | Int_t EventInMassMatch = 0; |
172 | Int_t NbTrigger = 0; | |
173 | Int_t ptTrig = 0; | |
d949b15e | 174 | |
cfc3191e | 175 | Double_t fXVertex=0; |
176 | Double_t fYVertex=0; | |
177 | Double_t fZVertex=0; | |
690d2205 | 178 | Double_t errXVtx=0; |
179 | Double_t errYVtx=0; | |
cfc3191e | 180 | |
d949b15e | 181 | Double_t fPxRec1, fPyRec1, fPzRec1, fE1; |
182 | Double_t fPxRec2, fPyRec2, fPzRec2, fE2; | |
183 | Int_t fCharge1, fCharge2; | |
184 | ||
53399039 | 185 | Int_t ntrackhits, nevents; |
186 | Int_t nprocessedevents = 0 ; | |
d949b15e | 187 | Double_t fitfmin; |
188 | ||
189 | TLorentzVector fV1, fV2, fVtot; | |
190 | ||
8cde4af5 | 191 | // Import TGeo geometry (needed by AliMUONTrackExtrap::ExtrapToVertex) |
192 | if (!gGeoManager) { | |
193 | TGeoManager::Import(geoFilename); | |
194 | if (!gGeoManager) { | |
195 | Error("MUONmass_ESD", "getting geometry from file %s failed", filename); | |
196 | return kFALSE; | |
197 | } | |
198 | } | |
199 | ||
3f6289e9 | 200 | // set mag field |
201 | // waiting for mag field in CDB | |
202 | printf("Loading field map...\n"); | |
b97b210c | 203 | AliMagFMaps* field = new AliMagFMaps("Maps","Maps", 1, 1., 10., AliMagFMaps::k5kG); |
3f6289e9 | 204 | AliTracker::SetFieldMap(field, kFALSE); |
d949b15e | 205 | |
206 | // open run loader and load gAlice, kinematics and header | |
207 | AliRunLoader* runLoader = AliRunLoader::Open(filename); | |
208 | if (!runLoader) { | |
209 | Error("MUONefficiency", "getting run loader from file %s failed", filename); | |
210 | return kFALSE; | |
211 | } | |
212 | ||
213 | runLoader->LoadgAlice(); | |
214 | gAlice = runLoader->GetAliRun(); | |
215 | if (!gAlice) { | |
216 | Error("MUONefficiency", "no galice object found"); | |
217 | return kFALSE; | |
218 | } | |
219 | ||
220 | // open the ESD file | |
221 | TFile* esdFile = TFile::Open(esdFileName); | |
222 | if (!esdFile || !esdFile->IsOpen()) { | |
223 | Error("MUONefficiency", "opening ESD file %s failed", esdFileName); | |
224 | return kFALSE; | |
225 | } | |
226 | ||
1c2bdf00 | 227 | AliESDEvent* esd = new AliESDEvent(); |
d949b15e | 228 | TTree* tree = (TTree*) esdFile->Get("esdTree"); |
229 | if (!tree) { | |
230 | Error("CheckESD", "no ESD tree found"); | |
231 | return kFALSE; | |
db3b303f | 232 | } |
233 | esd->ReadFromTree(tree); | |
d949b15e | 234 | |
235 | runLoader->LoadHeader(); | |
236 | nevents = runLoader->GetNumberOfEvents(); | |
cfc3191e | 237 | AliMUONTrackParam trackParam; |
238 | ||
d949b15e | 239 | // to access the particle Stack |
240 | runLoader->LoadKinematics("READ"); | |
241 | ||
53399039 | 242 | Int_t numberOfGeneratedResonances = 0 ; |
243 | ||
d949b15e | 244 | TParticle *particle; |
53399039 | 245 | |
d949b15e | 246 | Int_t track1Trigger = 0 ; |
247 | Float_t track1TriggerChi2 = 0 ; | |
d949b15e | 248 | Int_t track2Trigger = 0 ; |
249 | Float_t track2TriggerChi2 = 0 ; | |
250 | ||
251 | ||
252 | // Loop over events | |
253 | for (Int_t iEvent = FirstEvent; iEvent <= TMath::Min(LastEvent, nevents - 1); iEvent++) { // Start event loop | |
254 | ||
255 | if (iEvent%1000 == 0 ) | |
256 | printf("\n Nb of events analysed: %d \n",iEvent); | |
257 | ||
258 | // get current event | |
259 | runLoader->GetEvent(iEvent); | |
53399039 | 260 | nprocessedevents++; |
261 | ||
d949b15e | 262 | // get the stack and fill the kine tree |
263 | AliStack *theStack = runLoader->Stack(); | |
264 | if (PRINTLEVEL > 0) theStack->DumpPStack (); | |
265 | ||
266 | Int_t nparticles = (Int_t)runLoader->TreeK()->GetEntries(); | |
267 | Int_t nprimarypart = theStack->GetNprimary(); | |
268 | Int_t ntracks = theStack->GetNtrack(); | |
53399039 | 269 | |
d949b15e | 270 | if (PRINTLEVEL || (iEvent%100==0)) printf("\n >>> Event %d \n",iEvent); |
cfc3191e | 271 | if (PRINTLEVEL) cout << nprimarypart << " Particles generated (total is " << ntracks << ")"<< endl ; |
d949b15e | 272 | |
273 | for(Int_t iparticle=0; iparticle<nparticles; iparticle++) { // Start loop over particles | |
274 | particle = theStack->Particle(iparticle); | |
275 | ||
276 | Int_t muId = particle->GetPdgCode(); | |
277 | Int_t muM = particle->GetFirstMother(); | |
278 | Int_t muGM = 0; | |
279 | Float_t muP = particle->P(); | |
280 | Float_t muPt = TMath::Sqrt(particle->Px()*particle->Px()+particle->Py()*particle->Py()); | |
281 | Float_t muY = 0.5*TMath::Log((particle->Energy()+particle->Pz()+1.e-13)/(particle->Energy()-particle->Pz()+1.e-13)); | |
282 | if (muM >= 0) { | |
d949b15e | 283 | TParticle *theMum = theStack->Particle(muM); |
284 | muM = theMum->GetPdgCode(); | |
d949b15e | 285 | muGM = theMum->GetFirstMother() ; |
286 | if (muGM >= 0){ | |
287 | TParticle *grandMa = theStack->Particle(muGM); | |
288 | muGM = grandMa->GetPdgCode(); | |
289 | } | |
290 | else muGM=0; | |
291 | } | |
292 | else muM=0; | |
53399039 | 293 | |
294 | if (muId==ResType) numberOfGeneratedResonances++; | |
295 | ||
296 | ||
d949b15e | 297 | Float_t muT = particle->Theta()*180/TMath::Pi(); |
298 | Float_t muE = particle->Eta(); | |
299 | ||
300 | Float_t muVx = particle->Vx(); | |
301 | Float_t muVy = particle->Vy(); | |
302 | Float_t muVz = particle->Vz(); | |
303 | ||
304 | // If a write error occurs, the number of bytes returned is -1. | |
305 | // If no data are written, because e.g. the branch is disabled, | |
306 | // the number of bytes returned is 0. | |
307 | Int_t errCode = Ktuple->Fill(iEvent,nparticles,muId,muM,muGM,muP,muPt,muY,muT,muE,muVx,muVy,muVz); | |
308 | 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); | |
309 | ||
310 | } // End loop over particles | |
311 | ||
312 | ||
313 | ||
314 | // get the event summary data | |
315 | tree->GetEvent(iEvent); | |
316 | if (!esd) { | |
317 | Error("CheckESD", "no ESD object found for event %d", iEvent); | |
318 | return kFALSE; | |
319 | } | |
cfc3191e | 320 | |
321 | // get the SPD reconstructed vertex (vertexer) and fill the histogram | |
43939bd8 | 322 | AliESDVertex* Vertex = (AliESDVertex*) esd->GetVertex(); |
323 | if (Vertex->GetNContributors()) { | |
cfc3191e | 324 | fZVertex = Vertex->GetZv(); |
325 | fYVertex = Vertex->GetYv(); | |
326 | fXVertex = Vertex->GetXv(); | |
690d2205 | 327 | errXVtx = Vertex->GetXRes(); |
328 | errYVtx = Vertex->GetYRes(); | |
cfc3191e | 329 | } |
330 | hPrimaryVertex->Fill(fZVertex); | |
331 | ||
f57d136a | 332 | Int_t triggerWord = esd->GetTriggerMask(); |
d949b15e | 333 | Int_t nTracks = (Int_t)esd->GetNumberOfMuonTracks() ; |
334 | ||
335 | if (PRINTLEVEL > 0){ | |
336 | printf("\n Nb of events analysed: %d \n",iEvent); | |
337 | cout << " number of tracks: " << nTracks <<endl; | |
338 | } | |
339 | ||
37827b29 | 340 | // set the magnetic field for track extrapolations |
341 | AliMUONTrackExtrap::SetField(AliTracker::GetFieldMap()); | |
d949b15e | 342 | // loop over all reconstructed tracks (also first track of combination) |
343 | for (Int_t iTrack = 0; iTrack < nTracks; iTrack++) { | |
344 | ||
8cde4af5 | 345 | AliESDMuonTrack* muonTrack = new AliESDMuonTrack(*(esd->GetMuonTrack(iTrack))); |
d949b15e | 346 | |
8cde4af5 | 347 | // extrapolate to vertex if required and available |
348 | if (ExtrapToVertex > 0 && Vertex->GetNContributors()) { | |
22ccc301 | 349 | trackParam.GetParamFromUncorrected(*muonTrack); |
690d2205 | 350 | AliMUONTrackExtrap::ExtrapToVertex(&trackParam, fXVertex, fYVertex, fZVertex, errXVtx, errYVtx); |
8cde4af5 | 351 | trackParam.SetParamFor(*muonTrack); // put the new parameters in this copy of AliESDMuonTrack |
352 | } else if ((ExtrapToVertex > 0 && !Vertex->GetNContributors()) || ExtrapToVertex == 0){ | |
22ccc301 | 353 | trackParam.GetParamFromUncorrected(*muonTrack); |
690d2205 | 354 | AliMUONTrackExtrap::ExtrapToVertex(&trackParam, 0., 0., 0., 0., 0.); |
8cde4af5 | 355 | trackParam.SetParamFor(*muonTrack); // put the new parameters in this copy of AliESDMuonTrack |
d949b15e | 356 | } |
357 | ||
358 | // Trigger | |
359 | if (PRINTLEVEL > 5) cout << "MatchTrigger " << muonTrack->GetMatchTrigger() << " and Chi2 of matching tracks " << track1TriggerChi2 << endl ; | |
360 | track1Trigger = muonTrack->GetMatchTrigger(); | |
361 | if (track1Trigger) | |
362 | track1TriggerChi2 = muonTrack->GetChi2MatchTrigger(); | |
363 | else | |
364 | track1TriggerChi2 = 0. ; | |
365 | ||
d949b15e | 366 | fCharge1 = Int_t(TMath::Sign(1.,muonTrack->GetInverseBendingMomentum())); |
367 | ||
22ccc301 | 368 | muonTrack->LorentzP(fV1); |
d949b15e | 369 | |
370 | ntrackhits = muonTrack->GetNHit(); | |
371 | fitfmin = muonTrack->GetChi2(); | |
372 | ||
373 | // transverse momentum | |
374 | Float_t pt1 = fV1.Pt(); | |
375 | ||
376 | // total momentum | |
377 | Float_t p1 = fV1.P(); | |
378 | ||
379 | // Rapidity | |
380 | Float_t rapMuon1 = fV1.Rapidity(); | |
381 | ||
382 | // chi2 per d.o.f. | |
383 | ||
384 | Float_t ch1 = fitfmin / (2.0 * ntrackhits - 5); | |
22ccc301 | 385 | if (PRINTLEVEL > 5 ) printf(" px %f py %f pz %f pt %f NHits %d Norm.chi2 %f charge %d\n",fV1.Px(), fV1.Py(), fV1.Pz(), pt1, ntrackhits, ch1, fCharge1); |
d949b15e | 386 | |
387 | ||
388 | if ((ch1 < Chi2Cut) && (pt1 > PtCutMin) && (pt1 < PtCutMax)) { // condition for good track (Chi2Cut and PtCut) | |
389 | if (PRINTLEVEL > 8) cout << "inside pt and chi2 cuts " << endl ; | |
390 | ||
391 | // fill histos hPtMuon and hChi2PerDof | |
392 | hPtMuon->Fill(pt1); | |
393 | hPMuon->Fill(p1); | |
394 | hChi2PerDof->Fill(ch1); | |
395 | hRapMuon->Fill(rapMuon1); | |
396 | ||
397 | if (fCharge1 > 0) { | |
398 | hPtMuonPlus->Fill(pt1); | |
22ccc301 | 399 | hThetaPhiPlus->Fill(fV1.Phi()*180./TMath::Pi(),fV1.Theta()*180./TMath::Pi()); |
d949b15e | 400 | } else { |
401 | hPtMuonMinus->Fill(pt1); | |
22ccc301 | 402 | hThetaPhiMinus->Fill(fV1.Phi()*180./TMath::Pi(),fV1.Theta()*180./TMath::Pi()); |
d949b15e | 403 | } |
404 | ||
405 | // loop over second track of combination | |
406 | for (Int_t iTrack2 = iTrack + 1; iTrack2 < nTracks; iTrack2++) { | |
407 | ||
8cde4af5 | 408 | AliESDMuonTrack* muonTrack2 = new AliESDMuonTrack(*(esd->GetMuonTrack(iTrack2))); |
cfc3191e | 409 | |
8cde4af5 | 410 | // extrapolate to vertex if required and available |
411 | if (ExtrapToVertex > 0 && Vertex->GetNContributors()) { | |
22ccc301 | 412 | trackParam.GetParamFromUncorrected(*muonTrack2); |
690d2205 | 413 | AliMUONTrackExtrap::ExtrapToVertex(&trackParam, fXVertex, fYVertex, fZVertex, errXVtx, errYVtx); |
8cde4af5 | 414 | trackParam.SetParamFor(*muonTrack2); // put the new parameters in this copy of AliESDMuonTrack |
415 | } else if ((ExtrapToVertex > 0 && !Vertex->GetNContributors()) || ExtrapToVertex == 0){ | |
22ccc301 | 416 | trackParam.GetParamFromUncorrected(*muonTrack2); |
690d2205 | 417 | AliMUONTrackExtrap::ExtrapToVertex(&trackParam, 0., 0., 0., 0., 0.); |
8cde4af5 | 418 | trackParam.SetParamFor(*muonTrack2); // put the new parameters in this copy of AliESDMuonTrack |
d949b15e | 419 | } |
420 | ||
8cde4af5 | 421 | track2Trigger = muonTrack2->GetMatchTrigger(); |
d949b15e | 422 | if (track2Trigger) |
8cde4af5 | 423 | track2TriggerChi2 = muonTrack2->GetChi2MatchTrigger(); |
d949b15e | 424 | else |
425 | track2TriggerChi2 = 0. ; | |
426 | ||
8cde4af5 | 427 | fCharge2 = Int_t(TMath::Sign(1.,muonTrack2->GetInverseBendingMomentum())); |
d949b15e | 428 | |
22ccc301 | 429 | muonTrack2->LorentzP(fV2); |
d949b15e | 430 | |
8cde4af5 | 431 | ntrackhits = muonTrack2->GetNHit(); |
432 | fitfmin = muonTrack2->GetChi2(); | |
d949b15e | 433 | |
434 | // transverse momentum | |
435 | Float_t pt2 = fV2.Pt(); | |
436 | ||
437 | // chi2 per d.o.f. | |
438 | Float_t ch2 = fitfmin / (2.0 * ntrackhits - 5); | |
439 | ||
d949b15e | 440 | |
cfc3191e | 441 | // condition for good track (Chi2Cut and PtCut) |
442 | if ((ch2 < Chi2Cut) && (pt2 > PtCutMin) && (pt2 < PtCutMax)) { | |
d949b15e | 443 | |
cfc3191e | 444 | // condition for opposite charges |
445 | if ((fCharge1 * fCharge2) == -1) { | |
446 | ||
447 | if (PRINTLEVEL > 8) cout << "---------> Now filling the Ntuple " << endl ; | |
448 | ||
449 | // invariant mass | |
450 | fVtot = fV1 + fV2; | |
451 | Float_t invMass = fVtot.M(); | |
452 | ||
453 | if (fCharge1 < 0){ //mu_minus is index 1 in the ntuple | |
454 | 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}; | |
455 | ESDtuple->Fill(ESDFill); | |
456 | } | |
457 | else{ | |
458 | 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}; | |
459 | ESDtuple->Fill(ESDFill); | |
460 | } | |
461 | ||
462 | // fill histos hInvMassAll and hInvMassRes | |
463 | hInvMassAll->Fill(invMass); | |
464 | hInvMassRes->Fill(invMass); | |
465 | hInvMassAll_vs_Pt->Fill(invMass,fVtot.Pt()); | |
466 | ||
467 | //trigger info | |
468 | if (ResType == 553) | |
5c83829b | 469 | ptTrig = 0x08;// mask for Hpt unlike sign pair |
cfc3191e | 470 | else if (ResType == 443) |
5c83829b | 471 | ptTrig = 0x04;// mask for Lpt unlike sign pair |
cfc3191e | 472 | |
473 | ||
474 | if (esd->GetTriggerMask() & ptTrig) NbTrigger++; | |
475 | ||
476 | if (invMass > invMassMinInPeak && invMass < invMassMaxInPeak) { | |
477 | EventInMass++; | |
478 | hRapResonance->Fill(fVtot.Rapidity()); | |
479 | hPtResonance->Fill(fVtot.Pt()); | |
53399039 | 480 | |
cfc3191e | 481 | // match with trigger |
8b4a9b89 | 482 | if (muonTrack2->GetMatchTrigger()>=0 && (esd->GetTriggerMask() & ptTrig)) EventInMassMatch++; |
53399039 | 483 | |
cfc3191e | 484 | } |
485 | ||
486 | } // if (fCharge1 * fCharge2) == -1) | |
487 | } // if ((ch2 < Chi2Cut) && (pt2 > PtCutMin) && (pt2 < PtCutMax)) | |
8cde4af5 | 488 | delete muonTrack2; |
d949b15e | 489 | } // for (Int_t iTrack2 = iTrack + 1; iTrack2 < iTrack; iTrack2++) |
490 | } // if (ch1 < Chi2Cut) && (pt1 > PtCutMin)&& (pt1 < PtCutMax) ) | |
8cde4af5 | 491 | delete muonTrack; |
d949b15e | 492 | } // for (Int_t iTrack = 0; iTrack < nrectracks; iTrack++) |
493 | ||
494 | hNumberOfTrack->Fill(nTracks); | |
495 | // esdFile->Delete(); | |
496 | ||
497 | } // End of event loop | |
498 | ||
499 | ||
500 | // Loop over events for bg event | |
501 | ||
502 | Double_t thetaPlus, phiPlus; | |
503 | Double_t thetaMinus, phiMinus; | |
504 | Float_t PtMinus, PtPlus; | |
505 | ||
506 | for (Int_t iEvent = 0; iEvent < hInvMassAll->Integral(); iEvent++) { // Loop over events for bg event | |
53399039 | 507 | // according to Christian a 3d phi-theta-pt random pick would take better care |
d949b15e | 508 | // of all correlations |
509 | ||
510 | hThetaPhiPlus->GetRandom2(phiPlus, thetaPlus); | |
511 | hThetaPhiMinus->GetRandom2(phiMinus,thetaMinus); | |
512 | PtPlus = hPtMuonPlus->GetRandom(); | |
513 | PtMinus = hPtMuonMinus->GetRandom(); | |
514 | ||
515 | fPxRec1 = PtPlus * TMath::Cos(TMath::Pi()/180.*phiPlus); | |
516 | fPyRec1 = PtPlus * TMath::Sin(TMath::Pi()/180.*phiPlus); | |
517 | fPzRec1 = PtPlus / TMath::Tan(TMath::Pi()/180.*thetaPlus); | |
518 | ||
53399039 | 519 | fE1 = TMath::Sqrt(MUON_MASS * MUON_MASS + fPxRec1 * fPxRec1 + fPyRec1 * fPyRec1 + fPzRec1 * fPzRec1); |
d949b15e | 520 | fV1.SetPxPyPzE(fPxRec1, fPyRec1, fPzRec1, fE1); |
521 | ||
522 | fPxRec2 = PtMinus * TMath::Cos(TMath::Pi()/180.*phiMinus); | |
523 | fPyRec2 = PtMinus * TMath::Sin(TMath::Pi()/180.*phiMinus); | |
524 | fPzRec2 = PtMinus / TMath::Tan(TMath::Pi()/180.*thetaMinus); | |
525 | ||
53399039 | 526 | fE2 = TMath::Sqrt(MUON_MASS * MUON_MASS + fPxRec2 * fPxRec2 + fPyRec2 * fPyRec2 + fPzRec2 * fPzRec2); |
d949b15e | 527 | fV2.SetPxPyPzE(fPxRec2, fPyRec2, fPzRec2, fE2); |
528 | ||
529 | // invariant mass | |
530 | fVtot = fV1 + fV2; | |
531 | ||
532 | // fill histos hInvMassAll and hInvMassRes | |
533 | hInvMassBg->Fill(fVtot.M()); | |
534 | hInvMassBgk_vs_Pt->Fill( fVtot.M(), fVtot.Pt() ); | |
535 | ||
536 | // Ntuple for background... more convenient | |
537 | 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); | |
538 | ||
539 | } // End loop over events for background | |
540 | ||
541 | ||
542 | // File for histograms and histogram booking | |
543 | TString outfilename = "MUONefficiency.root"; | |
53399039 | 544 | TFile *ntupleFile = new TFile(outfilename.Data(), "RECREATE"); |
d949b15e | 545 | |
546 | Ktuple->Write(); | |
547 | ESDtuple->Write(); | |
53399039 | 548 | ESDtupleBck->Write(); |
549 | ||
550 | ntupleFile->Close(); | |
d949b15e | 551 | |
53399039 | 552 | TFile *histoFile = new TFile("MUONhistos.root", "RECREATE"); |
cfc3191e | 553 | hPrimaryVertex->Write(); |
53399039 | 554 | hPtMuon->Write(); |
555 | hPtMuonPlus->Write(); | |
556 | hPtMuonMinus->Write(); | |
557 | hPMuon->Write(); | |
558 | hChi2PerDof->Write(); | |
559 | hInvMassAll->Write(); | |
560 | hInvMassBg->Write(); | |
561 | hInvMassAll_vs_Pt ->Write(); | |
562 | hInvMassBgk_vs_Pt->Write(); | |
563 | hInvMassRes->Write(); | |
564 | hNumberOfTrack->Write(); | |
565 | hRapMuon ->Write(); | |
566 | hRapResonance ->Write(); | |
567 | hPtResonance ->Write(); | |
568 | hThetaPhiPlus ->Write(); | |
569 | hThetaPhiMinus ->Write(); | |
d949b15e | 570 | histoFile->Close(); |
53399039 | 571 | |
572 | cout << "" << endl ; | |
573 | cout << "*************************************************" << endl; | |
574 | ||
575 | cout << "MUONefficiency : " << nprocessedevents << " events processed" << endl; | |
576 | if (ResType==443) | |
577 | cout << "Number of generated J/Psi (443) : " << numberOfGeneratedResonances << endl ; | |
578 | if (ResType==553) | |
579 | cout << "Number of generated Upsilon (553) :" << numberOfGeneratedResonances << endl ; | |
580 | cout << "Chi2Cut for muon tracks = " << Chi2Cut << endl; | |
581 | cout << "PtCutMin for muon tracks = " << PtCutMin << endl; | |
582 | cout << "PtCutMax for muon tracks = " << PtCutMax << endl; | |
583 | cout << "Entries (unlike sign dimuons) in the mass range ["<<invMassMinInPeak<<";"<<invMassMaxInPeak<<"] : " << EventInMass <<endl; | |
584 | if (ptTrig==0x800) cout << "Unlike Pair - All Pt" ; | |
585 | if (ptTrig==0x400) cout << "Unlike Pair - High Pt" ; | |
586 | if (ptTrig==0x200) cout << "Unlike Pair - Low Pt" ; | |
587 | cout << " triggers : " << NbTrigger << endl; | |
d949b15e | 588 | |
53399039 | 589 | cout << "Entries in the mass range with matching between reconstructed tracks and trigger tracks " << EventInMassMatch << endl; |
590 | ||
d949b15e | 591 | |
592 | return kTRUE; | |
593 | } |