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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__) | |
5f72cf5b | 40 | |
41 | // MUON includes | |
42 | #include "AliMUONTrackParam.h" | |
43 | #include "AliMUONTrackExtrap.h" | |
44 | #include "AliESDMuonTrack.h" | |
45 | ||
46 | // STEER includes | |
47 | #include "AliRun.h" | |
48 | #include "AliRunLoader.h" | |
49 | #include "AliHeader.h" | |
50 | #include "AliLoader.h" | |
51 | #include "AliStack.h" | |
52 | #include "AliMagFMaps.h" | |
53 | #include "AliESDEvent.h" | |
54 | #include "AliESDVertex.h" | |
55 | #include "AliTracker.h" | |
56 | #include "AliCDBManager.h" | |
57 | ||
d949b15e | 58 | // ROOT includes |
59 | #include "TTree.h" | |
53399039 | 60 | #include "TNtuple.h" |
d949b15e | 61 | #include "TBranch.h" |
62 | #include "TClonesArray.h" | |
63 | #include "TLorentzVector.h" | |
64 | #include "TFile.h" | |
65 | #include "TH1.h" | |
66 | #include "TH2.h" | |
67 | #include "TParticle.h" | |
68 | #include "TTree.h" | |
69 | #include "TString.h" | |
70 | #include <Riostream.h> | |
8cde4af5 | 71 | #include <TGeoManager.h> |
da79ec88 | 72 | #include <TROOT.h> |
d949b15e | 73 | |
d949b15e | 74 | #endif |
75 | ||
8cde4af5 | 76 | // Arguments: |
77 | // ExtrapToVertex (default -1) | |
78 | // <0: no extrapolation; | |
79 | // =0: extrapolation to (0,0,0); | |
80 | // >0: extrapolation to ESDVertex if available, else to (0,0,0) | |
81 | // ResType (default 553) | |
82 | // 553 for Upsilon, anything else for J/Psi | |
d949b15e | 83 | |
6b092dfc | 84 | Bool_t MUONefficiency( char* filename = "galice.root", char* geoFilename = "geometry.root", char* esdFileName = "AliESDs.root", |
85 | Int_t ExtrapToVertex = -1, Int_t ResType = 553, Int_t FirstEvent = 0, Int_t LastEvent = 1000000 ) | |
d949b15e | 86 | { // MUONefficiency starts |
d949b15e | 87 | |
15381c8b | 88 | // Set default CDB storage |
89 | AliCDBManager* man = AliCDBManager::Instance(); | |
90 | man->SetDefaultStorage("local://$ALICE_ROOT"); | |
91 | ||
53399039 | 92 | Double_t MUON_MASS = 0.105658369; |
93 | Double_t UPSILON_MASS = 9.4603 ; | |
94 | Double_t JPSI_MASS = 3.097; | |
95 | ||
96 | // Upper and lower bound for counting entries in the mass peak | |
97 | // +/- 300 MeV/c^2 in this case. | |
98 | Float_t countingRange = 0.300 ; | |
99 | ||
100 | Float_t massResonance = 5.; | |
101 | Float_t invMassMinInPeak = 0. ; | |
102 | Float_t invMassMaxInPeak = 0. ; | |
103 | ||
104 | Float_t nBinsPerGev = 40 ; | |
105 | Float_t invMassMin = 0; Float_t invMassMax = 20; | |
106 | Float_t ptMinResonance = 0 ; Float_t ptMaxResonance = 20 ; Int_t ptBinsResonance = 100; | |
107 | ||
108 | if (ResType==443) { | |
109 | massResonance = JPSI_MASS ; | |
110 | invMassMinInPeak = JPSI_MASS - countingRange ; invMassMaxInPeak = JPSI_MASS + countingRange ; | |
111 | //limits for histograms | |
112 | invMassMin = 0 ; invMassMax = 6.; | |
113 | ptMinResonance = 0 ; ptMaxResonance = 20 ; ptBinsResonance = 100; | |
114 | } | |
115 | if (ResType==553) { | |
116 | massResonance = UPSILON_MASS; | |
117 | invMassMinInPeak = UPSILON_MASS - countingRange ; invMassMaxInPeak = UPSILON_MASS + countingRange; | |
118 | //limits for histograms | |
119 | invMassMin = 0 ; invMassMax = 12.; | |
120 | ptMinResonance = 0 ; ptMaxResonance = 20 ; ptBinsResonance = 100; | |
121 | } | |
122 | ||
123 | // Single Tracks muon cuts | |
124 | Float_t Chi2Cut = 100.; | |
125 | Float_t PtCutMin = 0. ; | |
126 | Float_t PtCutMax = 10000. ; | |
127 | ||
128 | ||
129 | // Limits for histograms | |
130 | Float_t ptMinMuon = 0. ; Float_t ptMaxMuon = 20.; Int_t ptBinsMuon = 100 ; | |
131 | Float_t pMinMuon = 0. ; Float_t pMaxMuon = 200.; Int_t pBinsMuon = 100 ; | |
d949b15e | 132 | |
53399039 | 133 | |
d949b15e | 134 | //Reset ROOT and connect tree file |
135 | gROOT->Reset(); | |
136 | ||
137 | // Printing Level | |
138 | Int_t PRINTLEVEL = 0 ; | |
d949b15e | 139 | |
140 | //for kinematic, i.e. reference tracks | |
141 | TNtuple *Ktuple = new TNtuple("Ktuple","Kinematics NTuple","ev:npart:id:idmo:idgdmo:p:pt:y:theta:pseudorap:vx:vy:vz"); | |
142 | ||
53399039 | 143 | //for reconstruction |
144 | TH1F *hPtMuon = new TH1F("hPtMuon", "Muon Pt (GeV/c)", ptBinsMuon, ptMinMuon, ptMaxMuon); | |
145 | TH1F *hPtMuonPlus = new TH1F("hPtMuonPlus", "Muon+ Pt (GeV/c)", ptBinsMuon, ptMinMuon, ptMaxMuon); | |
146 | TH1F *hPtMuonMinus = new TH1F("hPtMuonMinus", "Muon- Pt (GeV/c)", ptBinsMuon, ptMinMuon, ptMaxMuon); | |
147 | TH1F *hPMuon = new TH1F("hPMuon", "Muon P (GeV/c)", pBinsMuon, pMinMuon, pMaxMuon); | |
148 | ||
149 | TH1F *hInvMassAll; | |
150 | TH1F *hInvMassBg; | |
151 | TH2F *hInvMassAll_vs_Pt; | |
152 | TH2F *hInvMassBgk_vs_Pt; | |
d949b15e | 153 | TH1F *hInvMassRes; |
d949b15e | 154 | |
53399039 | 155 | |
156 | hInvMassAll = new TH1F("hInvMassAll", "Mu+Mu- invariant mass (GeV/c2)", (Int_t) (nBinsPerGev*(invMassMax - invMassMin)), invMassMin, invMassMax); | |
157 | hInvMassBg = new TH1F("hInvMassBg", "Mu+Mu- invariant mass BG(GeV/c2)", (Int_t) (nBinsPerGev*(invMassMax- invMassMin)), invMassMin, invMassMax); | |
158 | hInvMassAll_vs_Pt = new TH2F("hInvMassAll_vs_Pt","hInvMassAll_vs_Pt",(Int_t) (nBinsPerGev*(invMassMax- invMassMin)), invMassMin, invMassMax,ptBinsResonance,ptMinResonance,ptMaxResonance); | |
159 | hInvMassBgk_vs_Pt = new TH2F("hInvMassBgk_vs_Pt","hInvMassBgk_vs_Pt",(Int_t) (nBinsPerGev*(invMassMax- invMassMin)), invMassMin, invMassMax,ptBinsResonance,ptMinResonance,ptMaxResonance); | |
160 | ||
161 | hInvMassRes = new TH1F("hInvMassRes", "Mu+Mu- invariant mass (GeV/c2) around Resonance",(Int_t) (nBinsPerGev*3*countingRange*2),massResonance-3*countingRange,massResonance+3*countingRange); | |
162 | ||
cfc3191e | 163 | TH1F *hPrimaryVertex = new TH1F("hPrimaryVertex","SPD reconstructed Z vertex",150,-15,15); |
53399039 | 164 | TH1F *hChi2PerDof = new TH1F("hChi2PerDof", "Muon track chi2/d.o.f.", 100, 0., 20.); |
d949b15e | 165 | TH1F *hNumberOfTrack = new TH1F("hNumberOfTrack","nb of track /evt ",20,-0.5,19.5); |
166 | TH1F *hRapMuon = new TH1F("hRapMuon"," Muon Rapidity",50,-4.5,-2); | |
167 | TH1F *hRapResonance = new TH1F("hRapResonance"," Resonance Rapidity",50,-4.5,-2); | |
168 | TH1F *hPtResonance = new TH1F("hPtResonance", "Resonance Pt (GeV/c)", 100, 0., 20.); | |
169 | TH2F *hThetaPhiPlus = new TH2F("hThetaPhiPlus", "Theta vs Phi +", 760, -190., 190., 400, 160., 180.); | |
170 | TH2F *hThetaPhiMinus = new TH2F("hThetaPhiMinus", "Theta vs Phi -", 760, -190., 190., 400, 160., 180.); | |
53399039 | 171 | |
d949b15e | 172 | 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"); |
173 | TNtuple *ESDtupleBck = new TNtuple("ESDtupleBck","Reconstructed Mu+Mu- pairs for Background","ev:pt:y:theta:minv:pt1:y1:theta1:pt2:y2:theta2"); | |
174 | ||
175 | ||
53399039 | 176 | // Variables |
d949b15e | 177 | Int_t EventInMass = 0; |
53399039 | 178 | Int_t EventInMassMatch = 0; |
179 | Int_t NbTrigger = 0; | |
180 | Int_t ptTrig = 0; | |
d949b15e | 181 | |
cfc3191e | 182 | Double_t fXVertex=0; |
183 | Double_t fYVertex=0; | |
184 | Double_t fZVertex=0; | |
690d2205 | 185 | Double_t errXVtx=0; |
186 | Double_t errYVtx=0; | |
cfc3191e | 187 | |
d949b15e | 188 | Double_t fPxRec1, fPyRec1, fPzRec1, fE1; |
189 | Double_t fPxRec2, fPyRec2, fPzRec2, fE2; | |
190 | Int_t fCharge1, fCharge2; | |
191 | ||
53399039 | 192 | Int_t ntrackhits, nevents; |
193 | Int_t nprocessedevents = 0 ; | |
d949b15e | 194 | Double_t fitfmin; |
195 | ||
196 | TLorentzVector fV1, fV2, fVtot; | |
197 | ||
8cde4af5 | 198 | // Import TGeo geometry (needed by AliMUONTrackExtrap::ExtrapToVertex) |
199 | if (!gGeoManager) { | |
200 | TGeoManager::Import(geoFilename); | |
201 | if (!gGeoManager) { | |
202 | Error("MUONmass_ESD", "getting geometry from file %s failed", filename); | |
203 | return kFALSE; | |
204 | } | |
205 | } | |
206 | ||
3f6289e9 | 207 | // set mag field |
208 | // waiting for mag field in CDB | |
209 | printf("Loading field map...\n"); | |
b97b210c | 210 | AliMagFMaps* field = new AliMagFMaps("Maps","Maps", 1, 1., 10., AliMagFMaps::k5kG); |
3f6289e9 | 211 | AliTracker::SetFieldMap(field, kFALSE); |
d949b15e | 212 | |
213 | // open run loader and load gAlice, kinematics and header | |
214 | AliRunLoader* runLoader = AliRunLoader::Open(filename); | |
215 | if (!runLoader) { | |
216 | Error("MUONefficiency", "getting run loader from file %s failed", filename); | |
217 | return kFALSE; | |
218 | } | |
219 | ||
220 | runLoader->LoadgAlice(); | |
221 | gAlice = runLoader->GetAliRun(); | |
222 | if (!gAlice) { | |
223 | Error("MUONefficiency", "no galice object found"); | |
224 | return kFALSE; | |
225 | } | |
226 | ||
227 | // open the ESD file | |
228 | TFile* esdFile = TFile::Open(esdFileName); | |
229 | if (!esdFile || !esdFile->IsOpen()) { | |
230 | Error("MUONefficiency", "opening ESD file %s failed", esdFileName); | |
231 | return kFALSE; | |
232 | } | |
233 | ||
1c2bdf00 | 234 | AliESDEvent* esd = new AliESDEvent(); |
d949b15e | 235 | TTree* tree = (TTree*) esdFile->Get("esdTree"); |
236 | if (!tree) { | |
237 | Error("CheckESD", "no ESD tree found"); | |
238 | return kFALSE; | |
db3b303f | 239 | } |
240 | esd->ReadFromTree(tree); | |
d949b15e | 241 | |
242 | runLoader->LoadHeader(); | |
5f72cf5b | 243 | Int_t runNumber = runLoader->GetHeader()->GetRun(); |
244 | AliCDBManager::Instance()->SetRun(runNumber); | |
245 | ||
d949b15e | 246 | nevents = runLoader->GetNumberOfEvents(); |
cfc3191e | 247 | AliMUONTrackParam trackParam; |
248 | ||
d949b15e | 249 | // to access the particle Stack |
250 | runLoader->LoadKinematics("READ"); | |
251 | ||
53399039 | 252 | Int_t numberOfGeneratedResonances = 0 ; |
253 | ||
d949b15e | 254 | TParticle *particle; |
53399039 | 255 | |
d949b15e | 256 | Int_t track1Trigger = 0 ; |
257 | Float_t track1TriggerChi2 = 0 ; | |
d949b15e | 258 | Int_t track2Trigger = 0 ; |
259 | Float_t track2TriggerChi2 = 0 ; | |
260 | ||
261 | ||
262 | // Loop over events | |
263 | for (Int_t iEvent = FirstEvent; iEvent <= TMath::Min(LastEvent, nevents - 1); iEvent++) { // Start event loop | |
264 | ||
265 | if (iEvent%1000 == 0 ) | |
266 | printf("\n Nb of events analysed: %d \n",iEvent); | |
267 | ||
268 | // get current event | |
269 | runLoader->GetEvent(iEvent); | |
53399039 | 270 | nprocessedevents++; |
271 | ||
d949b15e | 272 | // get the stack and fill the kine tree |
273 | AliStack *theStack = runLoader->Stack(); | |
274 | if (PRINTLEVEL > 0) theStack->DumpPStack (); | |
275 | ||
276 | Int_t nparticles = (Int_t)runLoader->TreeK()->GetEntries(); | |
277 | Int_t nprimarypart = theStack->GetNprimary(); | |
278 | Int_t ntracks = theStack->GetNtrack(); | |
53399039 | 279 | |
d949b15e | 280 | if (PRINTLEVEL || (iEvent%100==0)) printf("\n >>> Event %d \n",iEvent); |
cfc3191e | 281 | if (PRINTLEVEL) cout << nprimarypart << " Particles generated (total is " << ntracks << ")"<< endl ; |
d949b15e | 282 | |
283 | for(Int_t iparticle=0; iparticle<nparticles; iparticle++) { // Start loop over particles | |
284 | particle = theStack->Particle(iparticle); | |
285 | ||
286 | Int_t muId = particle->GetPdgCode(); | |
287 | Int_t muM = particle->GetFirstMother(); | |
288 | Int_t muGM = 0; | |
289 | Float_t muP = particle->P(); | |
290 | Float_t muPt = TMath::Sqrt(particle->Px()*particle->Px()+particle->Py()*particle->Py()); | |
291 | Float_t muY = 0.5*TMath::Log((particle->Energy()+particle->Pz()+1.e-13)/(particle->Energy()-particle->Pz()+1.e-13)); | |
292 | if (muM >= 0) { | |
d949b15e | 293 | TParticle *theMum = theStack->Particle(muM); |
294 | muM = theMum->GetPdgCode(); | |
d949b15e | 295 | muGM = theMum->GetFirstMother() ; |
296 | if (muGM >= 0){ | |
297 | TParticle *grandMa = theStack->Particle(muGM); | |
298 | muGM = grandMa->GetPdgCode(); | |
299 | } | |
300 | else muGM=0; | |
301 | } | |
302 | else muM=0; | |
53399039 | 303 | |
304 | if (muId==ResType) numberOfGeneratedResonances++; | |
305 | ||
306 | ||
d949b15e | 307 | Float_t muT = particle->Theta()*180/TMath::Pi(); |
308 | Float_t muE = particle->Eta(); | |
309 | ||
310 | Float_t muVx = particle->Vx(); | |
311 | Float_t muVy = particle->Vy(); | |
312 | Float_t muVz = particle->Vz(); | |
313 | ||
314 | // If a write error occurs, the number of bytes returned is -1. | |
315 | // If no data are written, because e.g. the branch is disabled, | |
316 | // the number of bytes returned is 0. | |
317 | Int_t errCode = Ktuple->Fill(iEvent,nparticles,muId,muM,muGM,muP,muPt,muY,muT,muE,muVx,muVy,muVz); | |
318 | 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); | |
319 | ||
320 | } // End loop over particles | |
321 | ||
322 | ||
323 | ||
324 | // get the event summary data | |
325 | tree->GetEvent(iEvent); | |
326 | if (!esd) { | |
327 | Error("CheckESD", "no ESD object found for event %d", iEvent); | |
328 | return kFALSE; | |
329 | } | |
cfc3191e | 330 | |
331 | // get the SPD reconstructed vertex (vertexer) and fill the histogram | |
43939bd8 | 332 | AliESDVertex* Vertex = (AliESDVertex*) esd->GetVertex(); |
333 | if (Vertex->GetNContributors()) { | |
cfc3191e | 334 | fZVertex = Vertex->GetZv(); |
335 | fYVertex = Vertex->GetYv(); | |
336 | fXVertex = Vertex->GetXv(); | |
690d2205 | 337 | errXVtx = Vertex->GetXRes(); |
338 | errYVtx = Vertex->GetYRes(); | |
cfc3191e | 339 | } |
340 | hPrimaryVertex->Fill(fZVertex); | |
341 | ||
f57d136a | 342 | Int_t triggerWord = esd->GetTriggerMask(); |
d949b15e | 343 | Int_t nTracks = (Int_t)esd->GetNumberOfMuonTracks() ; |
344 | ||
345 | if (PRINTLEVEL > 0){ | |
346 | printf("\n Nb of events analysed: %d \n",iEvent); | |
347 | cout << " number of tracks: " << nTracks <<endl; | |
348 | } | |
349 | ||
37827b29 | 350 | // set the magnetic field for track extrapolations |
351 | AliMUONTrackExtrap::SetField(AliTracker::GetFieldMap()); | |
d949b15e | 352 | // loop over all reconstructed tracks (also first track of combination) |
353 | for (Int_t iTrack = 0; iTrack < nTracks; iTrack++) { | |
354 | ||
8cde4af5 | 355 | AliESDMuonTrack* muonTrack = new AliESDMuonTrack(*(esd->GetMuonTrack(iTrack))); |
d949b15e | 356 | |
8cde4af5 | 357 | // extrapolate to vertex if required and available |
358 | if (ExtrapToVertex > 0 && Vertex->GetNContributors()) { | |
22ccc301 | 359 | trackParam.GetParamFromUncorrected(*muonTrack); |
690d2205 | 360 | AliMUONTrackExtrap::ExtrapToVertex(&trackParam, fXVertex, fYVertex, fZVertex, errXVtx, errYVtx); |
8cde4af5 | 361 | trackParam.SetParamFor(*muonTrack); // put the new parameters in this copy of AliESDMuonTrack |
362 | } else if ((ExtrapToVertex > 0 && !Vertex->GetNContributors()) || ExtrapToVertex == 0){ | |
22ccc301 | 363 | trackParam.GetParamFromUncorrected(*muonTrack); |
690d2205 | 364 | AliMUONTrackExtrap::ExtrapToVertex(&trackParam, 0., 0., 0., 0., 0.); |
8cde4af5 | 365 | trackParam.SetParamFor(*muonTrack); // put the new parameters in this copy of AliESDMuonTrack |
d949b15e | 366 | } |
367 | ||
368 | // Trigger | |
369 | if (PRINTLEVEL > 5) cout << "MatchTrigger " << muonTrack->GetMatchTrigger() << " and Chi2 of matching tracks " << track1TriggerChi2 << endl ; | |
370 | track1Trigger = muonTrack->GetMatchTrigger(); | |
371 | if (track1Trigger) | |
372 | track1TriggerChi2 = muonTrack->GetChi2MatchTrigger(); | |
373 | else | |
374 | track1TriggerChi2 = 0. ; | |
375 | ||
d949b15e | 376 | fCharge1 = Int_t(TMath::Sign(1.,muonTrack->GetInverseBendingMomentum())); |
377 | ||
22ccc301 | 378 | muonTrack->LorentzP(fV1); |
d949b15e | 379 | |
380 | ntrackhits = muonTrack->GetNHit(); | |
381 | fitfmin = muonTrack->GetChi2(); | |
382 | ||
383 | // transverse momentum | |
384 | Float_t pt1 = fV1.Pt(); | |
385 | ||
386 | // total momentum | |
387 | Float_t p1 = fV1.P(); | |
388 | ||
389 | // Rapidity | |
390 | Float_t rapMuon1 = fV1.Rapidity(); | |
391 | ||
392 | // chi2 per d.o.f. | |
393 | ||
394 | Float_t ch1 = fitfmin / (2.0 * ntrackhits - 5); | |
22ccc301 | 395 | 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 | 396 | |
397 | ||
398 | if ((ch1 < Chi2Cut) && (pt1 > PtCutMin) && (pt1 < PtCutMax)) { // condition for good track (Chi2Cut and PtCut) | |
399 | if (PRINTLEVEL > 8) cout << "inside pt and chi2 cuts " << endl ; | |
400 | ||
401 | // fill histos hPtMuon and hChi2PerDof | |
402 | hPtMuon->Fill(pt1); | |
403 | hPMuon->Fill(p1); | |
404 | hChi2PerDof->Fill(ch1); | |
405 | hRapMuon->Fill(rapMuon1); | |
406 | ||
407 | if (fCharge1 > 0) { | |
408 | hPtMuonPlus->Fill(pt1); | |
22ccc301 | 409 | hThetaPhiPlus->Fill(fV1.Phi()*180./TMath::Pi(),fV1.Theta()*180./TMath::Pi()); |
d949b15e | 410 | } else { |
411 | hPtMuonMinus->Fill(pt1); | |
22ccc301 | 412 | hThetaPhiMinus->Fill(fV1.Phi()*180./TMath::Pi(),fV1.Theta()*180./TMath::Pi()); |
d949b15e | 413 | } |
414 | ||
415 | // loop over second track of combination | |
416 | for (Int_t iTrack2 = iTrack + 1; iTrack2 < nTracks; iTrack2++) { | |
417 | ||
8cde4af5 | 418 | AliESDMuonTrack* muonTrack2 = new AliESDMuonTrack(*(esd->GetMuonTrack(iTrack2))); |
cfc3191e | 419 | |
8cde4af5 | 420 | // extrapolate to vertex if required and available |
421 | if (ExtrapToVertex > 0 && Vertex->GetNContributors()) { | |
22ccc301 | 422 | trackParam.GetParamFromUncorrected(*muonTrack2); |
690d2205 | 423 | AliMUONTrackExtrap::ExtrapToVertex(&trackParam, fXVertex, fYVertex, fZVertex, errXVtx, errYVtx); |
8cde4af5 | 424 | trackParam.SetParamFor(*muonTrack2); // put the new parameters in this copy of AliESDMuonTrack |
425 | } else if ((ExtrapToVertex > 0 && !Vertex->GetNContributors()) || ExtrapToVertex == 0){ | |
22ccc301 | 426 | trackParam.GetParamFromUncorrected(*muonTrack2); |
690d2205 | 427 | AliMUONTrackExtrap::ExtrapToVertex(&trackParam, 0., 0., 0., 0., 0.); |
8cde4af5 | 428 | trackParam.SetParamFor(*muonTrack2); // put the new parameters in this copy of AliESDMuonTrack |
d949b15e | 429 | } |
430 | ||
8cde4af5 | 431 | track2Trigger = muonTrack2->GetMatchTrigger(); |
d949b15e | 432 | if (track2Trigger) |
8cde4af5 | 433 | track2TriggerChi2 = muonTrack2->GetChi2MatchTrigger(); |
d949b15e | 434 | else |
435 | track2TriggerChi2 = 0. ; | |
436 | ||
8cde4af5 | 437 | fCharge2 = Int_t(TMath::Sign(1.,muonTrack2->GetInverseBendingMomentum())); |
d949b15e | 438 | |
22ccc301 | 439 | muonTrack2->LorentzP(fV2); |
d949b15e | 440 | |
8cde4af5 | 441 | ntrackhits = muonTrack2->GetNHit(); |
442 | fitfmin = muonTrack2->GetChi2(); | |
d949b15e | 443 | |
444 | // transverse momentum | |
445 | Float_t pt2 = fV2.Pt(); | |
446 | ||
447 | // chi2 per d.o.f. | |
448 | Float_t ch2 = fitfmin / (2.0 * ntrackhits - 5); | |
449 | ||
d949b15e | 450 | |
cfc3191e | 451 | // condition for good track (Chi2Cut and PtCut) |
452 | if ((ch2 < Chi2Cut) && (pt2 > PtCutMin) && (pt2 < PtCutMax)) { | |
d949b15e | 453 | |
cfc3191e | 454 | // condition for opposite charges |
455 | if ((fCharge1 * fCharge2) == -1) { | |
456 | ||
457 | if (PRINTLEVEL > 8) cout << "---------> Now filling the Ntuple " << endl ; | |
458 | ||
459 | // invariant mass | |
460 | fVtot = fV1 + fV2; | |
461 | Float_t invMass = fVtot.M(); | |
462 | ||
463 | if (fCharge1 < 0){ //mu_minus is index 1 in the ntuple | |
464 | 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}; | |
465 | ESDtuple->Fill(ESDFill); | |
466 | } | |
467 | else{ | |
468 | 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}; | |
469 | ESDtuple->Fill(ESDFill); | |
470 | } | |
471 | ||
472 | // fill histos hInvMassAll and hInvMassRes | |
473 | hInvMassAll->Fill(invMass); | |
474 | hInvMassRes->Fill(invMass); | |
475 | hInvMassAll_vs_Pt->Fill(invMass,fVtot.Pt()); | |
476 | ||
477 | //trigger info | |
478 | if (ResType == 553) | |
5c83829b | 479 | ptTrig = 0x08;// mask for Hpt unlike sign pair |
cfc3191e | 480 | else if (ResType == 443) |
5c83829b | 481 | ptTrig = 0x04;// mask for Lpt unlike sign pair |
cfc3191e | 482 | |
483 | ||
484 | if (esd->GetTriggerMask() & ptTrig) NbTrigger++; | |
485 | ||
486 | if (invMass > invMassMinInPeak && invMass < invMassMaxInPeak) { | |
487 | EventInMass++; | |
488 | hRapResonance->Fill(fVtot.Rapidity()); | |
489 | hPtResonance->Fill(fVtot.Pt()); | |
53399039 | 490 | |
cfc3191e | 491 | // match with trigger |
8b4a9b89 | 492 | if (muonTrack2->GetMatchTrigger()>=0 && (esd->GetTriggerMask() & ptTrig)) EventInMassMatch++; |
53399039 | 493 | |
cfc3191e | 494 | } |
495 | ||
496 | } // if (fCharge1 * fCharge2) == -1) | |
497 | } // if ((ch2 < Chi2Cut) && (pt2 > PtCutMin) && (pt2 < PtCutMax)) | |
8cde4af5 | 498 | delete muonTrack2; |
d949b15e | 499 | } // for (Int_t iTrack2 = iTrack + 1; iTrack2 < iTrack; iTrack2++) |
500 | } // if (ch1 < Chi2Cut) && (pt1 > PtCutMin)&& (pt1 < PtCutMax) ) | |
8cde4af5 | 501 | delete muonTrack; |
d949b15e | 502 | } // for (Int_t iTrack = 0; iTrack < nrectracks; iTrack++) |
503 | ||
504 | hNumberOfTrack->Fill(nTracks); | |
505 | // esdFile->Delete(); | |
506 | ||
507 | } // End of event loop | |
508 | ||
509 | ||
510 | // Loop over events for bg event | |
511 | ||
512 | Double_t thetaPlus, phiPlus; | |
513 | Double_t thetaMinus, phiMinus; | |
514 | Float_t PtMinus, PtPlus; | |
515 | ||
516 | for (Int_t iEvent = 0; iEvent < hInvMassAll->Integral(); iEvent++) { // Loop over events for bg event | |
53399039 | 517 | // according to Christian a 3d phi-theta-pt random pick would take better care |
d949b15e | 518 | // of all correlations |
519 | ||
520 | hThetaPhiPlus->GetRandom2(phiPlus, thetaPlus); | |
521 | hThetaPhiMinus->GetRandom2(phiMinus,thetaMinus); | |
522 | PtPlus = hPtMuonPlus->GetRandom(); | |
523 | PtMinus = hPtMuonMinus->GetRandom(); | |
524 | ||
525 | fPxRec1 = PtPlus * TMath::Cos(TMath::Pi()/180.*phiPlus); | |
526 | fPyRec1 = PtPlus * TMath::Sin(TMath::Pi()/180.*phiPlus); | |
527 | fPzRec1 = PtPlus / TMath::Tan(TMath::Pi()/180.*thetaPlus); | |
528 | ||
53399039 | 529 | fE1 = TMath::Sqrt(MUON_MASS * MUON_MASS + fPxRec1 * fPxRec1 + fPyRec1 * fPyRec1 + fPzRec1 * fPzRec1); |
d949b15e | 530 | fV1.SetPxPyPzE(fPxRec1, fPyRec1, fPzRec1, fE1); |
531 | ||
532 | fPxRec2 = PtMinus * TMath::Cos(TMath::Pi()/180.*phiMinus); | |
533 | fPyRec2 = PtMinus * TMath::Sin(TMath::Pi()/180.*phiMinus); | |
534 | fPzRec2 = PtMinus / TMath::Tan(TMath::Pi()/180.*thetaMinus); | |
535 | ||
53399039 | 536 | fE2 = TMath::Sqrt(MUON_MASS * MUON_MASS + fPxRec2 * fPxRec2 + fPyRec2 * fPyRec2 + fPzRec2 * fPzRec2); |
d949b15e | 537 | fV2.SetPxPyPzE(fPxRec2, fPyRec2, fPzRec2, fE2); |
538 | ||
539 | // invariant mass | |
540 | fVtot = fV1 + fV2; | |
541 | ||
542 | // fill histos hInvMassAll and hInvMassRes | |
543 | hInvMassBg->Fill(fVtot.M()); | |
544 | hInvMassBgk_vs_Pt->Fill( fVtot.M(), fVtot.Pt() ); | |
545 | ||
546 | // Ntuple for background... more convenient | |
547 | 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); | |
548 | ||
549 | } // End loop over events for background | |
550 | ||
551 | ||
552 | // File for histograms and histogram booking | |
553 | TString outfilename = "MUONefficiency.root"; | |
53399039 | 554 | TFile *ntupleFile = new TFile(outfilename.Data(), "RECREATE"); |
d949b15e | 555 | |
556 | Ktuple->Write(); | |
557 | ESDtuple->Write(); | |
53399039 | 558 | ESDtupleBck->Write(); |
559 | ||
560 | ntupleFile->Close(); | |
d949b15e | 561 | |
53399039 | 562 | TFile *histoFile = new TFile("MUONhistos.root", "RECREATE"); |
cfc3191e | 563 | hPrimaryVertex->Write(); |
53399039 | 564 | hPtMuon->Write(); |
565 | hPtMuonPlus->Write(); | |
566 | hPtMuonMinus->Write(); | |
567 | hPMuon->Write(); | |
568 | hChi2PerDof->Write(); | |
569 | hInvMassAll->Write(); | |
570 | hInvMassBg->Write(); | |
571 | hInvMassAll_vs_Pt ->Write(); | |
572 | hInvMassBgk_vs_Pt->Write(); | |
573 | hInvMassRes->Write(); | |
574 | hNumberOfTrack->Write(); | |
575 | hRapMuon ->Write(); | |
576 | hRapResonance ->Write(); | |
577 | hPtResonance ->Write(); | |
578 | hThetaPhiPlus ->Write(); | |
579 | hThetaPhiMinus ->Write(); | |
d949b15e | 580 | histoFile->Close(); |
53399039 | 581 | |
582 | cout << "" << endl ; | |
583 | cout << "*************************************************" << endl; | |
584 | ||
585 | cout << "MUONefficiency : " << nprocessedevents << " events processed" << endl; | |
586 | if (ResType==443) | |
587 | cout << "Number of generated J/Psi (443) : " << numberOfGeneratedResonances << endl ; | |
588 | if (ResType==553) | |
589 | cout << "Number of generated Upsilon (553) :" << numberOfGeneratedResonances << endl ; | |
590 | cout << "Chi2Cut for muon tracks = " << Chi2Cut << endl; | |
591 | cout << "PtCutMin for muon tracks = " << PtCutMin << endl; | |
592 | cout << "PtCutMax for muon tracks = " << PtCutMax << endl; | |
593 | cout << "Entries (unlike sign dimuons) in the mass range ["<<invMassMinInPeak<<";"<<invMassMaxInPeak<<"] : " << EventInMass <<endl; | |
594 | if (ptTrig==0x800) cout << "Unlike Pair - All Pt" ; | |
595 | if (ptTrig==0x400) cout << "Unlike Pair - High Pt" ; | |
596 | if (ptTrig==0x200) cout << "Unlike Pair - Low Pt" ; | |
597 | cout << " triggers : " << NbTrigger << endl; | |
d949b15e | 598 | |
53399039 | 599 | cout << "Entries in the mass range with matching between reconstructed tracks and trigger tracks " << EventInMassMatch << endl; |
600 | ||
d949b15e | 601 | |
602 | return kTRUE; | |
603 | } |