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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 | ||
e54bf126 | 18 | /// \ingroup macros |
19 | /// \file MUONefficiency.C | |
20 | /// \brief add brief description | |
21 | /// | |
22 | /// Macro (upgraded version of MUONmassPlot_ESD.C, better handling of Jpsi) to make : | |
23 | /// - Ntuple (Ktuple) containing Upsilon kinematics variables (from kinematics.root files) | |
24 | /// - Ntuple (ESDtuple) containing Upsilon kinematics variables from reconstruction and | |
25 | /// combinations of 2 muons with opposite charges (ESDtupleBck will be used later) | |
26 | /// - Some QA histograms | |
27 | /// Ntuple are stored in the file MUONefficiency.root and ESD tree and QA histograms in AliESDs.root | |
28 | /// | |
29 | /// \author Christophe Suire, IPN Orsay | |
d949b15e | 30 | |
d949b15e | 31 | |
d949b15e | 32 | |
33 | #if !defined(__CINT__) || defined(__MAKECINT__) | |
5f72cf5b | 34 | |
35 | // MUON includes | |
36 | #include "AliMUONTrackParam.h" | |
37 | #include "AliMUONTrackExtrap.h" | |
103e6575 | 38 | #include "AliMUONESDInterface.h" |
5f72cf5b | 39 | |
40 | // STEER includes | |
41 | #include "AliRun.h" | |
42 | #include "AliRunLoader.h" | |
43 | #include "AliHeader.h" | |
44 | #include "AliLoader.h" | |
45 | #include "AliStack.h" | |
f7a1cc68 | 46 | #include "AliMagF.h" |
5f72cf5b | 47 | #include "AliESDEvent.h" |
48 | #include "AliESDVertex.h" | |
49 | #include "AliTracker.h" | |
50 | #include "AliCDBManager.h" | |
103e6575 | 51 | #include "AliESDMuonTrack.h" |
5f72cf5b | 52 | |
d949b15e | 53 | // ROOT includes |
54 | #include "TTree.h" | |
53399039 | 55 | #include "TNtuple.h" |
d949b15e | 56 | #include "TBranch.h" |
57 | #include "TClonesArray.h" | |
58 | #include "TLorentzVector.h" | |
59 | #include "TFile.h" | |
60 | #include "TH1.h" | |
61 | #include "TH2.h" | |
62 | #include "TParticle.h" | |
63 | #include "TTree.h" | |
64 | #include "TString.h" | |
65 | #include <Riostream.h> | |
8cde4af5 | 66 | #include <TGeoManager.h> |
da79ec88 | 67 | #include <TROOT.h> |
9bf6860b | 68 | #include <TF1.h> |
d949b15e | 69 | |
d949b15e | 70 | #endif |
71 | ||
6b092dfc | 72 | Bool_t MUONefficiency( char* filename = "galice.root", char* geoFilename = "geometry.root", char* esdFileName = "AliESDs.root", |
73 | Int_t ExtrapToVertex = -1, Int_t ResType = 553, Int_t FirstEvent = 0, Int_t LastEvent = 1000000 ) | |
e54bf126 | 74 | { |
75 | /// \param ExtrapToVertex (default -1) | |
76 | /// - <0: no extrapolation; | |
77 | /// - =0: extrapolation to (0,0,0); | |
78 | /// - >0: extrapolation to ESDVertex if available, else to (0,0,0) | |
79 | /// \param ResType 553 for Upsilon, 443 for J/Psi (default 553) | |
80 | /// \param FirstEvent (default 0) | |
81 | /// \param LastEvent (default 1.e6) | |
82 | /// \param Chi2Cut to keep only tracks with chi2 per d.o.f. < Chi2Cut (default 100) | |
83 | ||
84 | ||
85 | // MUONefficiency starts | |
d949b15e | 86 | |
15381c8b | 87 | // Set default CDB storage |
88 | AliCDBManager* man = AliCDBManager::Instance(); | |
162637e4 | 89 | man->SetDefaultStorage("local://$ALICE_ROOT/OCDB"); |
15381c8b | 90 | |
53399039 | 91 | Double_t MUON_MASS = 0.105658369; |
92 | Double_t UPSILON_MASS = 9.4603 ; | |
93 | Double_t JPSI_MASS = 3.097; | |
94 | ||
95 | // Upper and lower bound for counting entries in the mass peak | |
96 | // +/- 300 MeV/c^2 in this case. | |
97 | Float_t countingRange = 0.300 ; | |
98 | ||
99 | Float_t massResonance = 5.; | |
100 | Float_t invMassMinInPeak = 0. ; | |
101 | Float_t invMassMaxInPeak = 0. ; | |
102 | ||
103 | Float_t nBinsPerGev = 40 ; | |
104 | Float_t invMassMin = 0; Float_t invMassMax = 20; | |
105 | Float_t ptMinResonance = 0 ; Float_t ptMaxResonance = 20 ; Int_t ptBinsResonance = 100; | |
106 | ||
107 | if (ResType==443) { | |
108 | massResonance = JPSI_MASS ; | |
109 | invMassMinInPeak = JPSI_MASS - countingRange ; invMassMaxInPeak = JPSI_MASS + countingRange ; | |
110 | //limits for histograms | |
111 | invMassMin = 0 ; invMassMax = 6.; | |
112 | ptMinResonance = 0 ; ptMaxResonance = 20 ; ptBinsResonance = 100; | |
113 | } | |
114 | if (ResType==553) { | |
115 | massResonance = UPSILON_MASS; | |
116 | invMassMinInPeak = UPSILON_MASS - countingRange ; invMassMaxInPeak = UPSILON_MASS + countingRange; | |
117 | //limits for histograms | |
118 | invMassMin = 0 ; invMassMax = 12.; | |
119 | ptMinResonance = 0 ; ptMaxResonance = 20 ; ptBinsResonance = 100; | |
120 | } | |
121 | ||
122 | // Single Tracks muon cuts | |
123 | Float_t Chi2Cut = 100.; | |
124 | Float_t PtCutMin = 0. ; | |
125 | Float_t PtCutMax = 10000. ; | |
126 | ||
127 | ||
128 | // Limits for histograms | |
129 | Float_t ptMinMuon = 0. ; Float_t ptMaxMuon = 20.; Int_t ptBinsMuon = 100 ; | |
130 | Float_t pMinMuon = 0. ; Float_t pMaxMuon = 200.; Int_t pBinsMuon = 100 ; | |
d949b15e | 131 | |
53399039 | 132 | |
d949b15e | 133 | //Reset ROOT and connect tree file |
134 | gROOT->Reset(); | |
135 | ||
136 | // Printing Level | |
137 | Int_t PRINTLEVEL = 0 ; | |
d949b15e | 138 | |
139 | //for kinematic, i.e. reference tracks | |
140 | TNtuple *Ktuple = new TNtuple("Ktuple","Kinematics NTuple","ev:npart:id:idmo:idgdmo:p:pt:y:theta:pseudorap:vx:vy:vz"); | |
141 | ||
53399039 | 142 | //for reconstruction |
143 | TH1F *hPtMuon = new TH1F("hPtMuon", "Muon Pt (GeV/c)", ptBinsMuon, ptMinMuon, ptMaxMuon); | |
144 | TH1F *hPtMuonPlus = new TH1F("hPtMuonPlus", "Muon+ Pt (GeV/c)", ptBinsMuon, ptMinMuon, ptMaxMuon); | |
145 | TH1F *hPtMuonMinus = new TH1F("hPtMuonMinus", "Muon- Pt (GeV/c)", ptBinsMuon, ptMinMuon, ptMaxMuon); | |
146 | TH1F *hPMuon = new TH1F("hPMuon", "Muon P (GeV/c)", pBinsMuon, pMinMuon, pMaxMuon); | |
147 | ||
148 | TH1F *hInvMassAll; | |
149 | TH1F *hInvMassBg; | |
150 | TH2F *hInvMassAll_vs_Pt; | |
151 | TH2F *hInvMassBgk_vs_Pt; | |
d949b15e | 152 | TH1F *hInvMassRes; |
d949b15e | 153 | |
53399039 | 154 | |
155 | hInvMassAll = new TH1F("hInvMassAll", "Mu+Mu- invariant mass (GeV/c2)", (Int_t) (nBinsPerGev*(invMassMax - invMassMin)), invMassMin, invMassMax); | |
156 | hInvMassBg = new TH1F("hInvMassBg", "Mu+Mu- invariant mass BG(GeV/c2)", (Int_t) (nBinsPerGev*(invMassMax- invMassMin)), invMassMin, invMassMax); | |
157 | hInvMassAll_vs_Pt = new TH2F("hInvMassAll_vs_Pt","hInvMassAll_vs_Pt",(Int_t) (nBinsPerGev*(invMassMax- invMassMin)), invMassMin, invMassMax,ptBinsResonance,ptMinResonance,ptMaxResonance); | |
158 | hInvMassBgk_vs_Pt = new TH2F("hInvMassBgk_vs_Pt","hInvMassBgk_vs_Pt",(Int_t) (nBinsPerGev*(invMassMax- invMassMin)), invMassMin, invMassMax,ptBinsResonance,ptMinResonance,ptMaxResonance); | |
159 | ||
160 | hInvMassRes = new TH1F("hInvMassRes", "Mu+Mu- invariant mass (GeV/c2) around Resonance",(Int_t) (nBinsPerGev*3*countingRange*2),massResonance-3*countingRange,massResonance+3*countingRange); | |
161 | ||
cfc3191e | 162 | TH1F *hPrimaryVertex = new TH1F("hPrimaryVertex","SPD reconstructed Z vertex",150,-15,15); |
53399039 | 163 | TH1F *hChi2PerDof = new TH1F("hChi2PerDof", "Muon track chi2/d.o.f.", 100, 0., 20.); |
d949b15e | 164 | TH1F *hNumberOfTrack = new TH1F("hNumberOfTrack","nb of track /evt ",20,-0.5,19.5); |
165 | TH1F *hRapMuon = new TH1F("hRapMuon"," Muon Rapidity",50,-4.5,-2); | |
166 | TH1F *hRapResonance = new TH1F("hRapResonance"," Resonance Rapidity",50,-4.5,-2); | |
167 | TH1F *hPtResonance = new TH1F("hPtResonance", "Resonance Pt (GeV/c)", 100, 0., 20.); | |
168 | TH2F *hThetaPhiPlus = new TH2F("hThetaPhiPlus", "Theta vs Phi +", 760, -190., 190., 400, 160., 180.); | |
169 | TH2F *hThetaPhiMinus = new TH2F("hThetaPhiMinus", "Theta vs Phi -", 760, -190., 190., 400, 160., 180.); | |
53399039 | 170 | |
d949b15e | 171 | 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"); |
172 | TNtuple *ESDtupleBck = new TNtuple("ESDtupleBck","Reconstructed Mu+Mu- pairs for Background","ev:pt:y:theta:minv:pt1:y1:theta1:pt2:y2:theta2"); | |
173 | ||
174 | ||
53399039 | 175 | // Variables |
d949b15e | 176 | Int_t EventInMass = 0; |
53399039 | 177 | Int_t EventInMassMatch = 0; |
178 | Int_t NbTrigger = 0; | |
179 | Int_t ptTrig = 0; | |
d949b15e | 180 | |
cfc3191e | 181 | Double_t fXVertex=0; |
182 | Double_t fYVertex=0; | |
183 | Double_t fZVertex=0; | |
690d2205 | 184 | Double_t errXVtx=0; |
185 | Double_t errYVtx=0; | |
cfc3191e | 186 | |
d949b15e | 187 | Double_t fPxRec1, fPyRec1, fPzRec1, fE1; |
188 | Double_t fPxRec2, fPyRec2, fPzRec2, fE2; | |
189 | Int_t fCharge1, fCharge2; | |
190 | ||
53399039 | 191 | Int_t ntrackhits, nevents; |
192 | Int_t nprocessedevents = 0 ; | |
d949b15e | 193 | Double_t fitfmin; |
194 | ||
195 | TLorentzVector fV1, fV2, fVtot; | |
196 | ||
8cde4af5 | 197 | // Import TGeo geometry (needed by AliMUONTrackExtrap::ExtrapToVertex) |
198 | if (!gGeoManager) { | |
199 | TGeoManager::Import(geoFilename); | |
200 | if (!gGeoManager) { | |
201 | Error("MUONmass_ESD", "getting geometry from file %s failed", filename); | |
202 | return kFALSE; | |
203 | } | |
204 | } | |
205 | ||
3f6289e9 | 206 | // set mag field |
207 | // waiting for mag field in CDB | |
f7a1cc68 | 208 | if (!TGeoGlobalMagField::Instance()->GetField()) { |
209 | printf("Loading field map...\n"); | |
210 | AliMagF* field = new AliMagF("Maps","Maps",2,1.,1., 10.,AliMagF::k5kG); | |
211 | TGeoGlobalMagField::Instance()->SetField(field); | |
212 | } | |
213 | // set the magnetic field for track extrapolations | |
214 | AliMUONTrackExtrap::SetField(); | |
215 | ||
d949b15e | 216 | |
217 | // open run loader and load gAlice, kinematics and header | |
218 | AliRunLoader* runLoader = AliRunLoader::Open(filename); | |
219 | if (!runLoader) { | |
220 | Error("MUONefficiency", "getting run loader from file %s failed", filename); | |
221 | return kFALSE; | |
222 | } | |
223 | ||
224 | runLoader->LoadgAlice(); | |
225 | gAlice = runLoader->GetAliRun(); | |
226 | if (!gAlice) { | |
227 | Error("MUONefficiency", "no galice object found"); | |
228 | return kFALSE; | |
229 | } | |
230 | ||
231 | // open the ESD file | |
232 | TFile* esdFile = TFile::Open(esdFileName); | |
233 | if (!esdFile || !esdFile->IsOpen()) { | |
234 | Error("MUONefficiency", "opening ESD file %s failed", esdFileName); | |
235 | return kFALSE; | |
236 | } | |
237 | ||
1c2bdf00 | 238 | AliESDEvent* esd = new AliESDEvent(); |
d949b15e | 239 | TTree* tree = (TTree*) esdFile->Get("esdTree"); |
240 | if (!tree) { | |
241 | Error("CheckESD", "no ESD tree found"); | |
242 | return kFALSE; | |
db3b303f | 243 | } |
244 | esd->ReadFromTree(tree); | |
d949b15e | 245 | |
246 | runLoader->LoadHeader(); | |
5f72cf5b | 247 | Int_t runNumber = runLoader->GetHeader()->GetRun(); |
248 | AliCDBManager::Instance()->SetRun(runNumber); | |
249 | ||
d949b15e | 250 | nevents = runLoader->GetNumberOfEvents(); |
cfc3191e | 251 | AliMUONTrackParam trackParam; |
252 | ||
d949b15e | 253 | // to access the particle Stack |
254 | runLoader->LoadKinematics("READ"); | |
255 | ||
53399039 | 256 | Int_t numberOfGeneratedResonances = 0 ; |
257 | ||
d949b15e | 258 | TParticle *particle; |
53399039 | 259 | |
d949b15e | 260 | Int_t track1Trigger = 0 ; |
261 | Float_t track1TriggerChi2 = 0 ; | |
d949b15e | 262 | Int_t track2Trigger = 0 ; |
263 | Float_t track2TriggerChi2 = 0 ; | |
264 | ||
265 | ||
266 | // Loop over events | |
267 | for (Int_t iEvent = FirstEvent; iEvent <= TMath::Min(LastEvent, nevents - 1); iEvent++) { // Start event loop | |
268 | ||
269 | if (iEvent%1000 == 0 ) | |
270 | printf("\n Nb of events analysed: %d \n",iEvent); | |
271 | ||
272 | // get current event | |
273 | runLoader->GetEvent(iEvent); | |
53399039 | 274 | nprocessedevents++; |
275 | ||
d949b15e | 276 | // get the stack and fill the kine tree |
277 | AliStack *theStack = runLoader->Stack(); | |
278 | if (PRINTLEVEL > 0) theStack->DumpPStack (); | |
279 | ||
280 | Int_t nparticles = (Int_t)runLoader->TreeK()->GetEntries(); | |
281 | Int_t nprimarypart = theStack->GetNprimary(); | |
282 | Int_t ntracks = theStack->GetNtrack(); | |
53399039 | 283 | |
d949b15e | 284 | if (PRINTLEVEL || (iEvent%100==0)) printf("\n >>> Event %d \n",iEvent); |
cfc3191e | 285 | if (PRINTLEVEL) cout << nprimarypart << " Particles generated (total is " << ntracks << ")"<< endl ; |
d949b15e | 286 | |
287 | for(Int_t iparticle=0; iparticle<nparticles; iparticle++) { // Start loop over particles | |
288 | particle = theStack->Particle(iparticle); | |
289 | ||
290 | Int_t muId = particle->GetPdgCode(); | |
291 | Int_t muM = particle->GetFirstMother(); | |
292 | Int_t muGM = 0; | |
293 | Float_t muP = particle->P(); | |
294 | Float_t muPt = TMath::Sqrt(particle->Px()*particle->Px()+particle->Py()*particle->Py()); | |
295 | Float_t muY = 0.5*TMath::Log((particle->Energy()+particle->Pz()+1.e-13)/(particle->Energy()-particle->Pz()+1.e-13)); | |
296 | if (muM >= 0) { | |
d949b15e | 297 | TParticle *theMum = theStack->Particle(muM); |
298 | muM = theMum->GetPdgCode(); | |
d949b15e | 299 | muGM = theMum->GetFirstMother() ; |
300 | if (muGM >= 0){ | |
301 | TParticle *grandMa = theStack->Particle(muGM); | |
302 | muGM = grandMa->GetPdgCode(); | |
303 | } | |
304 | else muGM=0; | |
305 | } | |
306 | else muM=0; | |
53399039 | 307 | |
308 | if (muId==ResType) numberOfGeneratedResonances++; | |
309 | ||
310 | ||
d949b15e | 311 | Float_t muT = particle->Theta()*180/TMath::Pi(); |
312 | Float_t muE = particle->Eta(); | |
313 | ||
314 | Float_t muVx = particle->Vx(); | |
315 | Float_t muVy = particle->Vy(); | |
316 | Float_t muVz = particle->Vz(); | |
317 | ||
318 | // If a write error occurs, the number of bytes returned is -1. | |
319 | // If no data are written, because e.g. the branch is disabled, | |
320 | // the number of bytes returned is 0. | |
321 | Int_t errCode = Ktuple->Fill(iEvent,nparticles,muId,muM,muGM,muP,muPt,muY,muT,muE,muVx,muVy,muVz); | |
322 | 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); | |
323 | ||
324 | } // End loop over particles | |
325 | ||
326 | ||
327 | ||
328 | // get the event summary data | |
329 | tree->GetEvent(iEvent); | |
330 | if (!esd) { | |
331 | Error("CheckESD", "no ESD object found for event %d", iEvent); | |
332 | return kFALSE; | |
333 | } | |
cfc3191e | 334 | |
335 | // get the SPD reconstructed vertex (vertexer) and fill the histogram | |
43939bd8 | 336 | AliESDVertex* Vertex = (AliESDVertex*) esd->GetVertex(); |
337 | if (Vertex->GetNContributors()) { | |
cfc3191e | 338 | fZVertex = Vertex->GetZv(); |
339 | fYVertex = Vertex->GetYv(); | |
340 | fXVertex = Vertex->GetXv(); | |
690d2205 | 341 | errXVtx = Vertex->GetXRes(); |
342 | errYVtx = Vertex->GetYRes(); | |
cfc3191e | 343 | } |
344 | hPrimaryVertex->Fill(fZVertex); | |
345 | ||
f57d136a | 346 | Int_t triggerWord = esd->GetTriggerMask(); |
d949b15e | 347 | Int_t nTracks = (Int_t)esd->GetNumberOfMuonTracks() ; |
348 | ||
349 | if (PRINTLEVEL > 0){ | |
350 | printf("\n Nb of events analysed: %d \n",iEvent); | |
351 | cout << " number of tracks: " << nTracks <<endl; | |
352 | } | |
353 | ||
37827b29 | 354 | // set the magnetic field for track extrapolations |
f7a1cc68 | 355 | AliMUONTrackExtrap::SetField(); |
d949b15e | 356 | // loop over all reconstructed tracks (also first track of combination) |
357 | for (Int_t iTrack = 0; iTrack < nTracks; iTrack++) { | |
358 | ||
b1fea02e | 359 | // skip ghosts |
360 | if (!esd->GetMuonTrack(iTrack)->ContainTrackerData()) continue; | |
361 | ||
8cde4af5 | 362 | AliESDMuonTrack* muonTrack = new AliESDMuonTrack(*(esd->GetMuonTrack(iTrack))); |
d949b15e | 363 | |
8cde4af5 | 364 | // extrapolate to vertex if required and available |
365 | if (ExtrapToVertex > 0 && Vertex->GetNContributors()) { | |
103e6575 | 366 | AliMUONESDInterface::GetParamAtFirstCluster(*muonTrack, trackParam); |
690d2205 | 367 | AliMUONTrackExtrap::ExtrapToVertex(&trackParam, fXVertex, fYVertex, fZVertex, errXVtx, errYVtx); |
103e6575 | 368 | AliMUONESDInterface::SetParamAtVertex(trackParam, *muonTrack); // put the new parameters in this copy of AliESDMuonTrack |
8cde4af5 | 369 | } else if ((ExtrapToVertex > 0 && !Vertex->GetNContributors()) || ExtrapToVertex == 0){ |
103e6575 | 370 | AliMUONESDInterface::GetParamAtFirstCluster(*muonTrack, trackParam); |
690d2205 | 371 | AliMUONTrackExtrap::ExtrapToVertex(&trackParam, 0., 0., 0., 0., 0.); |
103e6575 | 372 | AliMUONESDInterface::SetParamAtVertex(trackParam, *muonTrack); // put the new parameters in this copy of AliESDMuonTrack |
d949b15e | 373 | } |
374 | ||
375 | // Trigger | |
376 | if (PRINTLEVEL > 5) cout << "MatchTrigger " << muonTrack->GetMatchTrigger() << " and Chi2 of matching tracks " << track1TriggerChi2 << endl ; | |
377 | track1Trigger = muonTrack->GetMatchTrigger(); | |
378 | if (track1Trigger) | |
379 | track1TriggerChi2 = muonTrack->GetChi2MatchTrigger(); | |
380 | else | |
381 | track1TriggerChi2 = 0. ; | |
382 | ||
d949b15e | 383 | fCharge1 = Int_t(TMath::Sign(1.,muonTrack->GetInverseBendingMomentum())); |
384 | ||
22ccc301 | 385 | muonTrack->LorentzP(fV1); |
d949b15e | 386 | |
387 | ntrackhits = muonTrack->GetNHit(); | |
388 | fitfmin = muonTrack->GetChi2(); | |
389 | ||
390 | // transverse momentum | |
391 | Float_t pt1 = fV1.Pt(); | |
392 | ||
393 | // total momentum | |
394 | Float_t p1 = fV1.P(); | |
395 | ||
396 | // Rapidity | |
397 | Float_t rapMuon1 = fV1.Rapidity(); | |
398 | ||
399 | // chi2 per d.o.f. | |
400 | ||
401 | Float_t ch1 = fitfmin / (2.0 * ntrackhits - 5); | |
22ccc301 | 402 | 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 | 403 | |
404 | ||
405 | if ((ch1 < Chi2Cut) && (pt1 > PtCutMin) && (pt1 < PtCutMax)) { // condition for good track (Chi2Cut and PtCut) | |
406 | if (PRINTLEVEL > 8) cout << "inside pt and chi2 cuts " << endl ; | |
407 | ||
408 | // fill histos hPtMuon and hChi2PerDof | |
409 | hPtMuon->Fill(pt1); | |
410 | hPMuon->Fill(p1); | |
411 | hChi2PerDof->Fill(ch1); | |
412 | hRapMuon->Fill(rapMuon1); | |
413 | ||
414 | if (fCharge1 > 0) { | |
415 | hPtMuonPlus->Fill(pt1); | |
22ccc301 | 416 | hThetaPhiPlus->Fill(fV1.Phi()*180./TMath::Pi(),fV1.Theta()*180./TMath::Pi()); |
d949b15e | 417 | } else { |
418 | hPtMuonMinus->Fill(pt1); | |
22ccc301 | 419 | hThetaPhiMinus->Fill(fV1.Phi()*180./TMath::Pi(),fV1.Theta()*180./TMath::Pi()); |
d949b15e | 420 | } |
421 | ||
422 | // loop over second track of combination | |
423 | for (Int_t iTrack2 = iTrack + 1; iTrack2 < nTracks; iTrack2++) { | |
424 | ||
b1fea02e | 425 | // skip ghosts |
426 | if (!esd->GetMuonTrack(iTrack2)->ContainTrackerData()) continue; | |
427 | ||
8cde4af5 | 428 | AliESDMuonTrack* muonTrack2 = new AliESDMuonTrack(*(esd->GetMuonTrack(iTrack2))); |
cfc3191e | 429 | |
8cde4af5 | 430 | // extrapolate to vertex if required and available |
431 | if (ExtrapToVertex > 0 && Vertex->GetNContributors()) { | |
103e6575 | 432 | AliMUONESDInterface::GetParamAtFirstCluster(*muonTrack2, trackParam); |
690d2205 | 433 | AliMUONTrackExtrap::ExtrapToVertex(&trackParam, fXVertex, fYVertex, fZVertex, errXVtx, errYVtx); |
103e6575 | 434 | AliMUONESDInterface::SetParamAtVertex(trackParam, *muonTrack2); // put the new parameters in this copy of AliESDMuonTrack |
8cde4af5 | 435 | } else if ((ExtrapToVertex > 0 && !Vertex->GetNContributors()) || ExtrapToVertex == 0){ |
103e6575 | 436 | AliMUONESDInterface::GetParamAtFirstCluster(*muonTrack2, trackParam); |
690d2205 | 437 | AliMUONTrackExtrap::ExtrapToVertex(&trackParam, 0., 0., 0., 0., 0.); |
103e6575 | 438 | AliMUONESDInterface::SetParamAtVertex(trackParam, *muonTrack2); // put the new parameters in this copy of AliESDMuonTrack |
d949b15e | 439 | } |
440 | ||
8cde4af5 | 441 | track2Trigger = muonTrack2->GetMatchTrigger(); |
d949b15e | 442 | if (track2Trigger) |
8cde4af5 | 443 | track2TriggerChi2 = muonTrack2->GetChi2MatchTrigger(); |
d949b15e | 444 | else |
445 | track2TriggerChi2 = 0. ; | |
446 | ||
8cde4af5 | 447 | fCharge2 = Int_t(TMath::Sign(1.,muonTrack2->GetInverseBendingMomentum())); |
d949b15e | 448 | |
22ccc301 | 449 | muonTrack2->LorentzP(fV2); |
d949b15e | 450 | |
8cde4af5 | 451 | ntrackhits = muonTrack2->GetNHit(); |
452 | fitfmin = muonTrack2->GetChi2(); | |
d949b15e | 453 | |
454 | // transverse momentum | |
455 | Float_t pt2 = fV2.Pt(); | |
456 | ||
457 | // chi2 per d.o.f. | |
458 | Float_t ch2 = fitfmin / (2.0 * ntrackhits - 5); | |
459 | ||
d949b15e | 460 | |
cfc3191e | 461 | // condition for good track (Chi2Cut and PtCut) |
462 | if ((ch2 < Chi2Cut) && (pt2 > PtCutMin) && (pt2 < PtCutMax)) { | |
d949b15e | 463 | |
cfc3191e | 464 | // condition for opposite charges |
465 | if ((fCharge1 * fCharge2) == -1) { | |
466 | ||
467 | if (PRINTLEVEL > 8) cout << "---------> Now filling the Ntuple " << endl ; | |
468 | ||
469 | // invariant mass | |
470 | fVtot = fV1 + fV2; | |
471 | Float_t invMass = fVtot.M(); | |
472 | ||
473 | if (fCharge1 < 0){ //mu_minus is index 1 in the ntuple | |
474 | 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}; | |
475 | ESDtuple->Fill(ESDFill); | |
476 | } | |
477 | else{ | |
478 | 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}; | |
479 | ESDtuple->Fill(ESDFill); | |
480 | } | |
481 | ||
482 | // fill histos hInvMassAll and hInvMassRes | |
483 | hInvMassAll->Fill(invMass); | |
484 | hInvMassRes->Fill(invMass); | |
485 | hInvMassAll_vs_Pt->Fill(invMass,fVtot.Pt()); | |
486 | ||
487 | //trigger info | |
488 | if (ResType == 553) | |
5c83829b | 489 | ptTrig = 0x08;// mask for Hpt unlike sign pair |
cfc3191e | 490 | else if (ResType == 443) |
5c83829b | 491 | ptTrig = 0x04;// mask for Lpt unlike sign pair |
cfc3191e | 492 | |
493 | ||
494 | if (esd->GetTriggerMask() & ptTrig) NbTrigger++; | |
495 | ||
496 | if (invMass > invMassMinInPeak && invMass < invMassMaxInPeak) { | |
497 | EventInMass++; | |
498 | hRapResonance->Fill(fVtot.Rapidity()); | |
499 | hPtResonance->Fill(fVtot.Pt()); | |
53399039 | 500 | |
cfc3191e | 501 | // match with trigger |
8b4a9b89 | 502 | if (muonTrack2->GetMatchTrigger()>=0 && (esd->GetTriggerMask() & ptTrig)) EventInMassMatch++; |
53399039 | 503 | |
cfc3191e | 504 | } |
505 | ||
506 | } // if (fCharge1 * fCharge2) == -1) | |
507 | } // if ((ch2 < Chi2Cut) && (pt2 > PtCutMin) && (pt2 < PtCutMax)) | |
8cde4af5 | 508 | delete muonTrack2; |
d949b15e | 509 | } // for (Int_t iTrack2 = iTrack + 1; iTrack2 < iTrack; iTrack2++) |
510 | } // if (ch1 < Chi2Cut) && (pt1 > PtCutMin)&& (pt1 < PtCutMax) ) | |
8cde4af5 | 511 | delete muonTrack; |
d949b15e | 512 | } // for (Int_t iTrack = 0; iTrack < nrectracks; iTrack++) |
513 | ||
514 | hNumberOfTrack->Fill(nTracks); | |
515 | // esdFile->Delete(); | |
516 | ||
517 | } // End of event loop | |
518 | ||
519 | ||
520 | // Loop over events for bg event | |
521 | ||
522 | Double_t thetaPlus, phiPlus; | |
523 | Double_t thetaMinus, phiMinus; | |
524 | Float_t PtMinus, PtPlus; | |
525 | ||
526 | for (Int_t iEvent = 0; iEvent < hInvMassAll->Integral(); iEvent++) { // Loop over events for bg event | |
53399039 | 527 | // according to Christian a 3d phi-theta-pt random pick would take better care |
d949b15e | 528 | // of all correlations |
529 | ||
530 | hThetaPhiPlus->GetRandom2(phiPlus, thetaPlus); | |
531 | hThetaPhiMinus->GetRandom2(phiMinus,thetaMinus); | |
532 | PtPlus = hPtMuonPlus->GetRandom(); | |
533 | PtMinus = hPtMuonMinus->GetRandom(); | |
534 | ||
535 | fPxRec1 = PtPlus * TMath::Cos(TMath::Pi()/180.*phiPlus); | |
536 | fPyRec1 = PtPlus * TMath::Sin(TMath::Pi()/180.*phiPlus); | |
537 | fPzRec1 = PtPlus / TMath::Tan(TMath::Pi()/180.*thetaPlus); | |
538 | ||
53399039 | 539 | fE1 = TMath::Sqrt(MUON_MASS * MUON_MASS + fPxRec1 * fPxRec1 + fPyRec1 * fPyRec1 + fPzRec1 * fPzRec1); |
d949b15e | 540 | fV1.SetPxPyPzE(fPxRec1, fPyRec1, fPzRec1, fE1); |
541 | ||
542 | fPxRec2 = PtMinus * TMath::Cos(TMath::Pi()/180.*phiMinus); | |
543 | fPyRec2 = PtMinus * TMath::Sin(TMath::Pi()/180.*phiMinus); | |
544 | fPzRec2 = PtMinus / TMath::Tan(TMath::Pi()/180.*thetaMinus); | |
545 | ||
53399039 | 546 | fE2 = TMath::Sqrt(MUON_MASS * MUON_MASS + fPxRec2 * fPxRec2 + fPyRec2 * fPyRec2 + fPzRec2 * fPzRec2); |
d949b15e | 547 | fV2.SetPxPyPzE(fPxRec2, fPyRec2, fPzRec2, fE2); |
548 | ||
549 | // invariant mass | |
550 | fVtot = fV1 + fV2; | |
551 | ||
552 | // fill histos hInvMassAll and hInvMassRes | |
553 | hInvMassBg->Fill(fVtot.M()); | |
554 | hInvMassBgk_vs_Pt->Fill( fVtot.M(), fVtot.Pt() ); | |
555 | ||
556 | // Ntuple for background... more convenient | |
557 | 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); | |
558 | ||
559 | } // End loop over events for background | |
560 | ||
561 | ||
562 | // File for histograms and histogram booking | |
563 | TString outfilename = "MUONefficiency.root"; | |
53399039 | 564 | TFile *ntupleFile = new TFile(outfilename.Data(), "RECREATE"); |
d949b15e | 565 | |
566 | Ktuple->Write(); | |
567 | ESDtuple->Write(); | |
53399039 | 568 | ESDtupleBck->Write(); |
569 | ||
570 | ntupleFile->Close(); | |
d949b15e | 571 | |
53399039 | 572 | TFile *histoFile = new TFile("MUONhistos.root", "RECREATE"); |
cfc3191e | 573 | hPrimaryVertex->Write(); |
53399039 | 574 | hPtMuon->Write(); |
575 | hPtMuonPlus->Write(); | |
576 | hPtMuonMinus->Write(); | |
577 | hPMuon->Write(); | |
578 | hChi2PerDof->Write(); | |
579 | hInvMassAll->Write(); | |
580 | hInvMassBg->Write(); | |
581 | hInvMassAll_vs_Pt ->Write(); | |
582 | hInvMassBgk_vs_Pt->Write(); | |
583 | hInvMassRes->Write(); | |
584 | hNumberOfTrack->Write(); | |
585 | hRapMuon ->Write(); | |
586 | hRapResonance ->Write(); | |
587 | hPtResonance ->Write(); | |
588 | hThetaPhiPlus ->Write(); | |
589 | hThetaPhiMinus ->Write(); | |
d949b15e | 590 | histoFile->Close(); |
53399039 | 591 | |
592 | cout << "" << endl ; | |
593 | cout << "*************************************************" << endl; | |
594 | ||
595 | cout << "MUONefficiency : " << nprocessedevents << " events processed" << endl; | |
596 | if (ResType==443) | |
597 | cout << "Number of generated J/Psi (443) : " << numberOfGeneratedResonances << endl ; | |
598 | if (ResType==553) | |
599 | cout << "Number of generated Upsilon (553) :" << numberOfGeneratedResonances << endl ; | |
600 | cout << "Chi2Cut for muon tracks = " << Chi2Cut << endl; | |
601 | cout << "PtCutMin for muon tracks = " << PtCutMin << endl; | |
602 | cout << "PtCutMax for muon tracks = " << PtCutMax << endl; | |
9bf6860b | 603 | |
604 | hInvMassAll->Fit("gaus","q0"); | |
605 | ||
606 | TF1* f1 = hInvMassAll->GetFunction("gaus"); | |
607 | ||
608 | cout << "Entries (unlike sign dimuons) : " << hInvMassAll->GetEntries() | |
609 | << Form(". Rough sigma = %7.2f MeV/c2",f1->GetParameter(2)*1000.0) << endl; | |
610 | ||
53399039 | 611 | cout << "Entries (unlike sign dimuons) in the mass range ["<<invMassMinInPeak<<";"<<invMassMaxInPeak<<"] : " << EventInMass <<endl; |
9bf6860b | 612 | |
53399039 | 613 | if (ptTrig==0x800) cout << "Unlike Pair - All Pt" ; |
614 | if (ptTrig==0x400) cout << "Unlike Pair - High Pt" ; | |
615 | if (ptTrig==0x200) cout << "Unlike Pair - Low Pt" ; | |
616 | cout << " triggers : " << NbTrigger << endl; | |
d949b15e | 617 | |
53399039 | 618 | cout << "Entries in the mass range with matching between reconstructed tracks and trigger tracks " << EventInMassMatch << endl; |
619 | ||
d949b15e | 620 | |
621 | return kTRUE; | |
622 | } |