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[u/mrichter/AliRoot.git] / MUON / MUONefficiency.C
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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"
46#include "AliMagFMaps.h"
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>
d949b15e 68
d949b15e 69#endif
70
6b092dfc 71Bool_t MUONefficiency( char* filename = "galice.root", char* geoFilename = "geometry.root", char* esdFileName = "AliESDs.root",
72 Int_t ExtrapToVertex = -1, Int_t ResType = 553, Int_t FirstEvent = 0, Int_t LastEvent = 1000000 )
e54bf126 73{
74/// \param 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/// \param ResType 553 for Upsilon, 443 for J/Psi (default 553)
79/// \param FirstEvent (default 0)
80/// \param LastEvent (default 1.e6)
81/// \param Chi2Cut to keep only tracks with chi2 per d.o.f. < Chi2Cut (default 100)
82
83
84 // MUONefficiency starts
d949b15e 85
15381c8b 86 // Set default CDB storage
87 AliCDBManager* man = AliCDBManager::Instance();
88 man->SetDefaultStorage("local://$ALICE_ROOT");
89
53399039 90 Double_t MUON_MASS = 0.105658369;
91 Double_t UPSILON_MASS = 9.4603 ;
92 Double_t JPSI_MASS = 3.097;
93
94 // Upper and lower bound for counting entries in the mass peak
95 // +/- 300 MeV/c^2 in this case.
96 Float_t countingRange = 0.300 ;
97
98 Float_t massResonance = 5.;
99 Float_t invMassMinInPeak = 0. ;
100 Float_t invMassMaxInPeak = 0. ;
101
102 Float_t nBinsPerGev = 40 ;
103 Float_t invMassMin = 0; Float_t invMassMax = 20;
104 Float_t ptMinResonance = 0 ; Float_t ptMaxResonance = 20 ; Int_t ptBinsResonance = 100;
105
106 if (ResType==443) {
107 massResonance = JPSI_MASS ;
108 invMassMinInPeak = JPSI_MASS - countingRange ; invMassMaxInPeak = JPSI_MASS + countingRange ;
109 //limits for histograms
110 invMassMin = 0 ; invMassMax = 6.;
111 ptMinResonance = 0 ; ptMaxResonance = 20 ; ptBinsResonance = 100;
112 }
113 if (ResType==553) {
114 massResonance = UPSILON_MASS;
115 invMassMinInPeak = UPSILON_MASS - countingRange ; invMassMaxInPeak = UPSILON_MASS + countingRange;
116 //limits for histograms
117 invMassMin = 0 ; invMassMax = 12.;
118 ptMinResonance = 0 ; ptMaxResonance = 20 ; ptBinsResonance = 100;
119 }
120
121 // Single Tracks muon cuts
122 Float_t Chi2Cut = 100.;
123 Float_t PtCutMin = 0. ;
124 Float_t PtCutMax = 10000. ;
125
126
127 // Limits for histograms
128 Float_t ptMinMuon = 0. ; Float_t ptMaxMuon = 20.; Int_t ptBinsMuon = 100 ;
129 Float_t pMinMuon = 0. ; Float_t pMaxMuon = 200.; Int_t pBinsMuon = 100 ;
d949b15e 130
53399039 131
d949b15e 132 //Reset ROOT and connect tree file
133 gROOT->Reset();
134
135 // Printing Level
136 Int_t PRINTLEVEL = 0 ;
d949b15e 137
138 //for kinematic, i.e. reference tracks
139 TNtuple *Ktuple = new TNtuple("Ktuple","Kinematics NTuple","ev:npart:id:idmo:idgdmo:p:pt:y:theta:pseudorap:vx:vy:vz");
140
53399039 141 //for reconstruction
142 TH1F *hPtMuon = new TH1F("hPtMuon", "Muon Pt (GeV/c)", ptBinsMuon, ptMinMuon, ptMaxMuon);
143 TH1F *hPtMuonPlus = new TH1F("hPtMuonPlus", "Muon+ Pt (GeV/c)", ptBinsMuon, ptMinMuon, ptMaxMuon);
144 TH1F *hPtMuonMinus = new TH1F("hPtMuonMinus", "Muon- Pt (GeV/c)", ptBinsMuon, ptMinMuon, ptMaxMuon);
145 TH1F *hPMuon = new TH1F("hPMuon", "Muon P (GeV/c)", pBinsMuon, pMinMuon, pMaxMuon);
146
147 TH1F *hInvMassAll;
148 TH1F *hInvMassBg;
149 TH2F *hInvMassAll_vs_Pt;
150 TH2F *hInvMassBgk_vs_Pt;
d949b15e 151 TH1F *hInvMassRes;
d949b15e 152
53399039 153
154 hInvMassAll = new TH1F("hInvMassAll", "Mu+Mu- invariant mass (GeV/c2)", (Int_t) (nBinsPerGev*(invMassMax - invMassMin)), invMassMin, invMassMax);
155 hInvMassBg = new TH1F("hInvMassBg", "Mu+Mu- invariant mass BG(GeV/c2)", (Int_t) (nBinsPerGev*(invMassMax- invMassMin)), invMassMin, invMassMax);
156 hInvMassAll_vs_Pt = new TH2F("hInvMassAll_vs_Pt","hInvMassAll_vs_Pt",(Int_t) (nBinsPerGev*(invMassMax- invMassMin)), invMassMin, invMassMax,ptBinsResonance,ptMinResonance,ptMaxResonance);
157 hInvMassBgk_vs_Pt = new TH2F("hInvMassBgk_vs_Pt","hInvMassBgk_vs_Pt",(Int_t) (nBinsPerGev*(invMassMax- invMassMin)), invMassMin, invMassMax,ptBinsResonance,ptMinResonance,ptMaxResonance);
158
159 hInvMassRes = new TH1F("hInvMassRes", "Mu+Mu- invariant mass (GeV/c2) around Resonance",(Int_t) (nBinsPerGev*3*countingRange*2),massResonance-3*countingRange,massResonance+3*countingRange);
160
cfc3191e 161 TH1F *hPrimaryVertex = new TH1F("hPrimaryVertex","SPD reconstructed Z vertex",150,-15,15);
53399039 162 TH1F *hChi2PerDof = new TH1F("hChi2PerDof", "Muon track chi2/d.o.f.", 100, 0., 20.);
d949b15e 163 TH1F *hNumberOfTrack = new TH1F("hNumberOfTrack","nb of track /evt ",20,-0.5,19.5);
164 TH1F *hRapMuon = new TH1F("hRapMuon"," Muon Rapidity",50,-4.5,-2);
165 TH1F *hRapResonance = new TH1F("hRapResonance"," Resonance Rapidity",50,-4.5,-2);
166 TH1F *hPtResonance = new TH1F("hPtResonance", "Resonance Pt (GeV/c)", 100, 0., 20.);
167 TH2F *hThetaPhiPlus = new TH2F("hThetaPhiPlus", "Theta vs Phi +", 760, -190., 190., 400, 160., 180.);
168 TH2F *hThetaPhiMinus = new TH2F("hThetaPhiMinus", "Theta vs Phi -", 760, -190., 190., 400, 160., 180.);
53399039 169
d949b15e 170 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");
171 TNtuple *ESDtupleBck = new TNtuple("ESDtupleBck","Reconstructed Mu+Mu- pairs for Background","ev:pt:y:theta:minv:pt1:y1:theta1:pt2:y2:theta2");
172
173
53399039 174 // Variables
d949b15e 175 Int_t EventInMass = 0;
53399039 176 Int_t EventInMassMatch = 0;
177 Int_t NbTrigger = 0;
178 Int_t ptTrig = 0;
d949b15e 179
cfc3191e 180 Double_t fXVertex=0;
181 Double_t fYVertex=0;
182 Double_t fZVertex=0;
690d2205 183 Double_t errXVtx=0;
184 Double_t errYVtx=0;
cfc3191e 185
d949b15e 186 Double_t fPxRec1, fPyRec1, fPzRec1, fE1;
187 Double_t fPxRec2, fPyRec2, fPzRec2, fE2;
188 Int_t fCharge1, fCharge2;
189
53399039 190 Int_t ntrackhits, nevents;
191 Int_t nprocessedevents = 0 ;
d949b15e 192 Double_t fitfmin;
193
194 TLorentzVector fV1, fV2, fVtot;
195
8cde4af5 196 // Import TGeo geometry (needed by AliMUONTrackExtrap::ExtrapToVertex)
197 if (!gGeoManager) {
198 TGeoManager::Import(geoFilename);
199 if (!gGeoManager) {
200 Error("MUONmass_ESD", "getting geometry from file %s failed", filename);
201 return kFALSE;
202 }
203 }
204
3f6289e9 205 // set mag field
206 // waiting for mag field in CDB
207 printf("Loading field map...\n");
b97b210c 208 AliMagFMaps* field = new AliMagFMaps("Maps","Maps", 1, 1., 10., AliMagFMaps::k5kG);
3f6289e9 209 AliTracker::SetFieldMap(field, kFALSE);
d949b15e 210
211 // open run loader and load gAlice, kinematics and header
212 AliRunLoader* runLoader = AliRunLoader::Open(filename);
213 if (!runLoader) {
214 Error("MUONefficiency", "getting run loader from file %s failed", filename);
215 return kFALSE;
216 }
217
218 runLoader->LoadgAlice();
219 gAlice = runLoader->GetAliRun();
220 if (!gAlice) {
221 Error("MUONefficiency", "no galice object found");
222 return kFALSE;
223 }
224
225 // open the ESD file
226 TFile* esdFile = TFile::Open(esdFileName);
227 if (!esdFile || !esdFile->IsOpen()) {
228 Error("MUONefficiency", "opening ESD file %s failed", esdFileName);
229 return kFALSE;
230 }
231
1c2bdf00 232 AliESDEvent* esd = new AliESDEvent();
d949b15e 233 TTree* tree = (TTree*) esdFile->Get("esdTree");
234 if (!tree) {
235 Error("CheckESD", "no ESD tree found");
236 return kFALSE;
db3b303f 237 }
238 esd->ReadFromTree(tree);
d949b15e 239
240 runLoader->LoadHeader();
5f72cf5b 241 Int_t runNumber = runLoader->GetHeader()->GetRun();
242 AliCDBManager::Instance()->SetRun(runNumber);
243
d949b15e 244 nevents = runLoader->GetNumberOfEvents();
cfc3191e 245 AliMUONTrackParam trackParam;
246
d949b15e 247 // to access the particle Stack
248 runLoader->LoadKinematics("READ");
249
53399039 250 Int_t numberOfGeneratedResonances = 0 ;
251
d949b15e 252 TParticle *particle;
53399039 253
d949b15e 254 Int_t track1Trigger = 0 ;
255 Float_t track1TriggerChi2 = 0 ;
d949b15e 256 Int_t track2Trigger = 0 ;
257 Float_t track2TriggerChi2 = 0 ;
258
259
260 // Loop over events
261 for (Int_t iEvent = FirstEvent; iEvent <= TMath::Min(LastEvent, nevents - 1); iEvent++) { // Start event loop
262
263 if (iEvent%1000 == 0 )
264 printf("\n Nb of events analysed: %d \n",iEvent);
265
266 // get current event
267 runLoader->GetEvent(iEvent);
53399039 268 nprocessedevents++;
269
d949b15e 270 // get the stack and fill the kine tree
271 AliStack *theStack = runLoader->Stack();
272 if (PRINTLEVEL > 0) theStack->DumpPStack ();
273
274 Int_t nparticles = (Int_t)runLoader->TreeK()->GetEntries();
275 Int_t nprimarypart = theStack->GetNprimary();
276 Int_t ntracks = theStack->GetNtrack();
53399039 277
d949b15e 278 if (PRINTLEVEL || (iEvent%100==0)) printf("\n >>> Event %d \n",iEvent);
cfc3191e 279 if (PRINTLEVEL) cout << nprimarypart << " Particles generated (total is " << ntracks << ")"<< endl ;
d949b15e 280
281 for(Int_t iparticle=0; iparticle<nparticles; iparticle++) { // Start loop over particles
282 particle = theStack->Particle(iparticle);
283
284 Int_t muId = particle->GetPdgCode();
285 Int_t muM = particle->GetFirstMother();
286 Int_t muGM = 0;
287 Float_t muP = particle->P();
288 Float_t muPt = TMath::Sqrt(particle->Px()*particle->Px()+particle->Py()*particle->Py());
289 Float_t muY = 0.5*TMath::Log((particle->Energy()+particle->Pz()+1.e-13)/(particle->Energy()-particle->Pz()+1.e-13));
290 if (muM >= 0) {
d949b15e 291 TParticle *theMum = theStack->Particle(muM);
292 muM = theMum->GetPdgCode();
d949b15e 293 muGM = theMum->GetFirstMother() ;
294 if (muGM >= 0){
295 TParticle *grandMa = theStack->Particle(muGM);
296 muGM = grandMa->GetPdgCode();
297 }
298 else muGM=0;
299 }
300 else muM=0;
53399039 301
302 if (muId==ResType) numberOfGeneratedResonances++;
303
304
d949b15e 305 Float_t muT = particle->Theta()*180/TMath::Pi();
306 Float_t muE = particle->Eta();
307
308 Float_t muVx = particle->Vx();
309 Float_t muVy = particle->Vy();
310 Float_t muVz = particle->Vz();
311
312 // If a write error occurs, the number of bytes returned is -1.
313 // If no data are written, because e.g. the branch is disabled,
314 // the number of bytes returned is 0.
315 Int_t errCode = Ktuple->Fill(iEvent,nparticles,muId,muM,muGM,muP,muPt,muY,muT,muE,muVx,muVy,muVz);
316 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);
317
318 } // End loop over particles
319
320
321
322 // get the event summary data
323 tree->GetEvent(iEvent);
324 if (!esd) {
325 Error("CheckESD", "no ESD object found for event %d", iEvent);
326 return kFALSE;
327 }
cfc3191e 328
329 // get the SPD reconstructed vertex (vertexer) and fill the histogram
43939bd8 330 AliESDVertex* Vertex = (AliESDVertex*) esd->GetVertex();
331 if (Vertex->GetNContributors()) {
cfc3191e 332 fZVertex = Vertex->GetZv();
333 fYVertex = Vertex->GetYv();
334 fXVertex = Vertex->GetXv();
690d2205 335 errXVtx = Vertex->GetXRes();
336 errYVtx = Vertex->GetYRes();
cfc3191e 337 }
338 hPrimaryVertex->Fill(fZVertex);
339
f57d136a 340 Int_t triggerWord = esd->GetTriggerMask();
d949b15e 341 Int_t nTracks = (Int_t)esd->GetNumberOfMuonTracks() ;
342
343 if (PRINTLEVEL > 0){
344 printf("\n Nb of events analysed: %d \n",iEvent);
345 cout << " number of tracks: " << nTracks <<endl;
346 }
347
37827b29 348 // set the magnetic field for track extrapolations
349 AliMUONTrackExtrap::SetField(AliTracker::GetFieldMap());
d949b15e 350 // loop over all reconstructed tracks (also first track of combination)
351 for (Int_t iTrack = 0; iTrack < nTracks; iTrack++) {
352
8cde4af5 353 AliESDMuonTrack* muonTrack = new AliESDMuonTrack(*(esd->GetMuonTrack(iTrack)));
d949b15e 354
8cde4af5 355 // extrapolate to vertex if required and available
356 if (ExtrapToVertex > 0 && Vertex->GetNContributors()) {
103e6575 357 AliMUONESDInterface::GetParamAtFirstCluster(*muonTrack, trackParam);
690d2205 358 AliMUONTrackExtrap::ExtrapToVertex(&trackParam, fXVertex, fYVertex, fZVertex, errXVtx, errYVtx);
103e6575 359 AliMUONESDInterface::SetParamAtVertex(trackParam, *muonTrack); // put the new parameters in this copy of AliESDMuonTrack
8cde4af5 360 } else if ((ExtrapToVertex > 0 && !Vertex->GetNContributors()) || ExtrapToVertex == 0){
103e6575 361 AliMUONESDInterface::GetParamAtFirstCluster(*muonTrack, trackParam);
690d2205 362 AliMUONTrackExtrap::ExtrapToVertex(&trackParam, 0., 0., 0., 0., 0.);
103e6575 363 AliMUONESDInterface::SetParamAtVertex(trackParam, *muonTrack); // put the new parameters in this copy of AliESDMuonTrack
d949b15e 364 }
365
366 // Trigger
367 if (PRINTLEVEL > 5) cout << "MatchTrigger " << muonTrack->GetMatchTrigger() << " and Chi2 of matching tracks " << track1TriggerChi2 << endl ;
368 track1Trigger = muonTrack->GetMatchTrigger();
369 if (track1Trigger)
370 track1TriggerChi2 = muonTrack->GetChi2MatchTrigger();
371 else
372 track1TriggerChi2 = 0. ;
373
d949b15e 374 fCharge1 = Int_t(TMath::Sign(1.,muonTrack->GetInverseBendingMomentum()));
375
22ccc301 376 muonTrack->LorentzP(fV1);
d949b15e 377
378 ntrackhits = muonTrack->GetNHit();
379 fitfmin = muonTrack->GetChi2();
380
381 // transverse momentum
382 Float_t pt1 = fV1.Pt();
383
384 // total momentum
385 Float_t p1 = fV1.P();
386
387 // Rapidity
388 Float_t rapMuon1 = fV1.Rapidity();
389
390 // chi2 per d.o.f.
391
392 Float_t ch1 = fitfmin / (2.0 * ntrackhits - 5);
22ccc301 393 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 394
395
396 if ((ch1 < Chi2Cut) && (pt1 > PtCutMin) && (pt1 < PtCutMax)) { // condition for good track (Chi2Cut and PtCut)
397 if (PRINTLEVEL > 8) cout << "inside pt and chi2 cuts " << endl ;
398
399 // fill histos hPtMuon and hChi2PerDof
400 hPtMuon->Fill(pt1);
401 hPMuon->Fill(p1);
402 hChi2PerDof->Fill(ch1);
403 hRapMuon->Fill(rapMuon1);
404
405 if (fCharge1 > 0) {
406 hPtMuonPlus->Fill(pt1);
22ccc301 407 hThetaPhiPlus->Fill(fV1.Phi()*180./TMath::Pi(),fV1.Theta()*180./TMath::Pi());
d949b15e 408 } else {
409 hPtMuonMinus->Fill(pt1);
22ccc301 410 hThetaPhiMinus->Fill(fV1.Phi()*180./TMath::Pi(),fV1.Theta()*180./TMath::Pi());
d949b15e 411 }
412
413 // loop over second track of combination
414 for (Int_t iTrack2 = iTrack + 1; iTrack2 < nTracks; iTrack2++) {
415
8cde4af5 416 AliESDMuonTrack* muonTrack2 = new AliESDMuonTrack(*(esd->GetMuonTrack(iTrack2)));
cfc3191e 417
8cde4af5 418 // extrapolate to vertex if required and available
419 if (ExtrapToVertex > 0 && Vertex->GetNContributors()) {
103e6575 420 AliMUONESDInterface::GetParamAtFirstCluster(*muonTrack2, trackParam);
690d2205 421 AliMUONTrackExtrap::ExtrapToVertex(&trackParam, fXVertex, fYVertex, fZVertex, errXVtx, errYVtx);
103e6575 422 AliMUONESDInterface::SetParamAtVertex(trackParam, *muonTrack2); // put the new parameters in this copy of AliESDMuonTrack
8cde4af5 423 } else if ((ExtrapToVertex > 0 && !Vertex->GetNContributors()) || ExtrapToVertex == 0){
103e6575 424 AliMUONESDInterface::GetParamAtFirstCluster(*muonTrack2, trackParam);
690d2205 425 AliMUONTrackExtrap::ExtrapToVertex(&trackParam, 0., 0., 0., 0., 0.);
103e6575 426 AliMUONESDInterface::SetParamAtVertex(trackParam, *muonTrack2); // put the new parameters in this copy of AliESDMuonTrack
d949b15e 427 }
428
8cde4af5 429 track2Trigger = muonTrack2->GetMatchTrigger();
d949b15e 430 if (track2Trigger)
8cde4af5 431 track2TriggerChi2 = muonTrack2->GetChi2MatchTrigger();
d949b15e 432 else
433 track2TriggerChi2 = 0. ;
434
8cde4af5 435 fCharge2 = Int_t(TMath::Sign(1.,muonTrack2->GetInverseBendingMomentum()));
d949b15e 436
22ccc301 437 muonTrack2->LorentzP(fV2);
d949b15e 438
8cde4af5 439 ntrackhits = muonTrack2->GetNHit();
440 fitfmin = muonTrack2->GetChi2();
d949b15e 441
442 // transverse momentum
443 Float_t pt2 = fV2.Pt();
444
445 // chi2 per d.o.f.
446 Float_t ch2 = fitfmin / (2.0 * ntrackhits - 5);
447
d949b15e 448
cfc3191e 449 // condition for good track (Chi2Cut and PtCut)
450 if ((ch2 < Chi2Cut) && (pt2 > PtCutMin) && (pt2 < PtCutMax)) {
d949b15e 451
cfc3191e 452 // condition for opposite charges
453 if ((fCharge1 * fCharge2) == -1) {
454
455 if (PRINTLEVEL > 8) cout << "---------> Now filling the Ntuple " << endl ;
456
457 // invariant mass
458 fVtot = fV1 + fV2;
459 Float_t invMass = fVtot.M();
460
461 if (fCharge1 < 0){ //mu_minus is index 1 in the ntuple
462 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};
463 ESDtuple->Fill(ESDFill);
464 }
465 else{
466 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};
467 ESDtuple->Fill(ESDFill);
468 }
469
470 // fill histos hInvMassAll and hInvMassRes
471 hInvMassAll->Fill(invMass);
472 hInvMassRes->Fill(invMass);
473 hInvMassAll_vs_Pt->Fill(invMass,fVtot.Pt());
474
475 //trigger info
476 if (ResType == 553)
5c83829b 477 ptTrig = 0x08;// mask for Hpt unlike sign pair
cfc3191e 478 else if (ResType == 443)
5c83829b 479 ptTrig = 0x04;// mask for Lpt unlike sign pair
cfc3191e 480
481
482 if (esd->GetTriggerMask() & ptTrig) NbTrigger++;
483
484 if (invMass > invMassMinInPeak && invMass < invMassMaxInPeak) {
485 EventInMass++;
486 hRapResonance->Fill(fVtot.Rapidity());
487 hPtResonance->Fill(fVtot.Pt());
53399039 488
cfc3191e 489 // match with trigger
8b4a9b89 490 if (muonTrack2->GetMatchTrigger()>=0 && (esd->GetTriggerMask() & ptTrig)) EventInMassMatch++;
53399039 491
cfc3191e 492 }
493
494 } // if (fCharge1 * fCharge2) == -1)
495 } // if ((ch2 < Chi2Cut) && (pt2 > PtCutMin) && (pt2 < PtCutMax))
8cde4af5 496 delete muonTrack2;
d949b15e 497 } // for (Int_t iTrack2 = iTrack + 1; iTrack2 < iTrack; iTrack2++)
498 } // if (ch1 < Chi2Cut) && (pt1 > PtCutMin)&& (pt1 < PtCutMax) )
8cde4af5 499 delete muonTrack;
d949b15e 500 } // for (Int_t iTrack = 0; iTrack < nrectracks; iTrack++)
501
502 hNumberOfTrack->Fill(nTracks);
503 // esdFile->Delete();
504
505 } // End of event loop
506
507
508 // Loop over events for bg event
509
510 Double_t thetaPlus, phiPlus;
511 Double_t thetaMinus, phiMinus;
512 Float_t PtMinus, PtPlus;
513
514 for (Int_t iEvent = 0; iEvent < hInvMassAll->Integral(); iEvent++) { // Loop over events for bg event
53399039 515 // according to Christian a 3d phi-theta-pt random pick would take better care
d949b15e 516 // of all correlations
517
518 hThetaPhiPlus->GetRandom2(phiPlus, thetaPlus);
519 hThetaPhiMinus->GetRandom2(phiMinus,thetaMinus);
520 PtPlus = hPtMuonPlus->GetRandom();
521 PtMinus = hPtMuonMinus->GetRandom();
522
523 fPxRec1 = PtPlus * TMath::Cos(TMath::Pi()/180.*phiPlus);
524 fPyRec1 = PtPlus * TMath::Sin(TMath::Pi()/180.*phiPlus);
525 fPzRec1 = PtPlus / TMath::Tan(TMath::Pi()/180.*thetaPlus);
526
53399039 527 fE1 = TMath::Sqrt(MUON_MASS * MUON_MASS + fPxRec1 * fPxRec1 + fPyRec1 * fPyRec1 + fPzRec1 * fPzRec1);
d949b15e 528 fV1.SetPxPyPzE(fPxRec1, fPyRec1, fPzRec1, fE1);
529
530 fPxRec2 = PtMinus * TMath::Cos(TMath::Pi()/180.*phiMinus);
531 fPyRec2 = PtMinus * TMath::Sin(TMath::Pi()/180.*phiMinus);
532 fPzRec2 = PtMinus / TMath::Tan(TMath::Pi()/180.*thetaMinus);
533
53399039 534 fE2 = TMath::Sqrt(MUON_MASS * MUON_MASS + fPxRec2 * fPxRec2 + fPyRec2 * fPyRec2 + fPzRec2 * fPzRec2);
d949b15e 535 fV2.SetPxPyPzE(fPxRec2, fPyRec2, fPzRec2, fE2);
536
537 // invariant mass
538 fVtot = fV1 + fV2;
539
540 // fill histos hInvMassAll and hInvMassRes
541 hInvMassBg->Fill(fVtot.M());
542 hInvMassBgk_vs_Pt->Fill( fVtot.M(), fVtot.Pt() );
543
544 // Ntuple for background... more convenient
545 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);
546
547 } // End loop over events for background
548
549
550 // File for histograms and histogram booking
551 TString outfilename = "MUONefficiency.root";
53399039 552 TFile *ntupleFile = new TFile(outfilename.Data(), "RECREATE");
d949b15e 553
554 Ktuple->Write();
555 ESDtuple->Write();
53399039 556 ESDtupleBck->Write();
557
558 ntupleFile->Close();
d949b15e 559
53399039 560 TFile *histoFile = new TFile("MUONhistos.root", "RECREATE");
cfc3191e 561 hPrimaryVertex->Write();
53399039 562 hPtMuon->Write();
563 hPtMuonPlus->Write();
564 hPtMuonMinus->Write();
565 hPMuon->Write();
566 hChi2PerDof->Write();
567 hInvMassAll->Write();
568 hInvMassBg->Write();
569 hInvMassAll_vs_Pt ->Write();
570 hInvMassBgk_vs_Pt->Write();
571 hInvMassRes->Write();
572 hNumberOfTrack->Write();
573 hRapMuon ->Write();
574 hRapResonance ->Write();
575 hPtResonance ->Write();
576 hThetaPhiPlus ->Write();
577 hThetaPhiMinus ->Write();
d949b15e 578 histoFile->Close();
53399039 579
580 cout << "" << endl ;
581 cout << "*************************************************" << endl;
582
583 cout << "MUONefficiency : " << nprocessedevents << " events processed" << endl;
584 if (ResType==443)
585 cout << "Number of generated J/Psi (443) : " << numberOfGeneratedResonances << endl ;
586 if (ResType==553)
587 cout << "Number of generated Upsilon (553) :" << numberOfGeneratedResonances << endl ;
588 cout << "Chi2Cut for muon tracks = " << Chi2Cut << endl;
589 cout << "PtCutMin for muon tracks = " << PtCutMin << endl;
590 cout << "PtCutMax for muon tracks = " << PtCutMax << endl;
591 cout << "Entries (unlike sign dimuons) in the mass range ["<<invMassMinInPeak<<";"<<invMassMaxInPeak<<"] : " << EventInMass <<endl;
592 if (ptTrig==0x800) cout << "Unlike Pair - All Pt" ;
593 if (ptTrig==0x400) cout << "Unlike Pair - High Pt" ;
594 if (ptTrig==0x200) cout << "Unlike Pair - Low Pt" ;
595 cout << " triggers : " << NbTrigger << endl;
d949b15e 596
53399039 597 cout << "Entries in the mass range with matching between reconstructed tracks and trigger tracks " << EventInMassMatch << endl;
598
d949b15e 599
600 return kTRUE;
601}