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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
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>
53
54// STEER includes
55#include "AliRun.h"
56#include "AliRunLoader.h"
57#include "AliHeader.h"
58#include "AliLoader.h"
59#include "AliStack.h"
3f6289e9 60#include "AliMagFMaps.h"
d949b15e 61#include "AliESD.h"
3f6289e9 62#include "AliTracker.h"
d949b15e 63
64// MUON includes
cfc3191e 65#include "AliMUONTrackParam.h"
37827b29 66#include "AliMUONTrackExtrap.h"
d949b15e 67#include "AliESDMuonTrack.h"
68#endif
69
70
53399039 71Bool_t MUONefficiency( Int_t ResType = 553, Int_t FirstEvent = 0, Int_t LastEvent = 1000000,
72 char* esdFileName = "AliESDs.root", char* filename = "galice.root")
d949b15e 73{ // MUONefficiency starts
d949b15e 74
53399039 75 Double_t MUON_MASS = 0.105658369;
76 Double_t UPSILON_MASS = 9.4603 ;
77 Double_t JPSI_MASS = 3.097;
78
79 // Upper and lower bound for counting entries in the mass peak
80 // +/- 300 MeV/c^2 in this case.
81 Float_t countingRange = 0.300 ;
82
83 Float_t massResonance = 5.;
84 Float_t invMassMinInPeak = 0. ;
85 Float_t invMassMaxInPeak = 0. ;
86
87 Float_t nBinsPerGev = 40 ;
88 Float_t invMassMin = 0; Float_t invMassMax = 20;
89 Float_t ptMinResonance = 0 ; Float_t ptMaxResonance = 20 ; Int_t ptBinsResonance = 100;
90
91 if (ResType==443) {
92 massResonance = JPSI_MASS ;
93 invMassMinInPeak = JPSI_MASS - countingRange ; invMassMaxInPeak = JPSI_MASS + countingRange ;
94 //limits for histograms
95 invMassMin = 0 ; invMassMax = 6.;
96 ptMinResonance = 0 ; ptMaxResonance = 20 ; ptBinsResonance = 100;
97 }
98 if (ResType==553) {
99 massResonance = UPSILON_MASS;
100 invMassMinInPeak = UPSILON_MASS - countingRange ; invMassMaxInPeak = UPSILON_MASS + countingRange;
101 //limits for histograms
102 invMassMin = 0 ; invMassMax = 12.;
103 ptMinResonance = 0 ; ptMaxResonance = 20 ; ptBinsResonance = 100;
104 }
105
106 // Single Tracks muon cuts
107 Float_t Chi2Cut = 100.;
108 Float_t PtCutMin = 0. ;
109 Float_t PtCutMax = 10000. ;
110
111
112 // Limits for histograms
113 Float_t ptMinMuon = 0. ; Float_t ptMaxMuon = 20.; Int_t ptBinsMuon = 100 ;
114 Float_t pMinMuon = 0. ; Float_t pMaxMuon = 200.; Int_t pBinsMuon = 100 ;
d949b15e 115
53399039 116
d949b15e 117 //Reset ROOT and connect tree file
118 gROOT->Reset();
119
120 // Printing Level
121 Int_t PRINTLEVEL = 0 ;
d949b15e 122
123 //for kinematic, i.e. reference tracks
124 TNtuple *Ktuple = new TNtuple("Ktuple","Kinematics NTuple","ev:npart:id:idmo:idgdmo:p:pt:y:theta:pseudorap:vx:vy:vz");
125
53399039 126 //for reconstruction
127 TH1F *hPtMuon = new TH1F("hPtMuon", "Muon Pt (GeV/c)", ptBinsMuon, ptMinMuon, ptMaxMuon);
128 TH1F *hPtMuonPlus = new TH1F("hPtMuonPlus", "Muon+ Pt (GeV/c)", ptBinsMuon, ptMinMuon, ptMaxMuon);
129 TH1F *hPtMuonMinus = new TH1F("hPtMuonMinus", "Muon- Pt (GeV/c)", ptBinsMuon, ptMinMuon, ptMaxMuon);
130 TH1F *hPMuon = new TH1F("hPMuon", "Muon P (GeV/c)", pBinsMuon, pMinMuon, pMaxMuon);
131
132 TH1F *hInvMassAll;
133 TH1F *hInvMassBg;
134 TH2F *hInvMassAll_vs_Pt;
135 TH2F *hInvMassBgk_vs_Pt;
d949b15e 136 TH1F *hInvMassRes;
d949b15e 137
53399039 138
139 hInvMassAll = new TH1F("hInvMassAll", "Mu+Mu- invariant mass (GeV/c2)", (Int_t) (nBinsPerGev*(invMassMax - invMassMin)), invMassMin, invMassMax);
140 hInvMassBg = new TH1F("hInvMassBg", "Mu+Mu- invariant mass BG(GeV/c2)", (Int_t) (nBinsPerGev*(invMassMax- invMassMin)), invMassMin, invMassMax);
141 hInvMassAll_vs_Pt = new TH2F("hInvMassAll_vs_Pt","hInvMassAll_vs_Pt",(Int_t) (nBinsPerGev*(invMassMax- invMassMin)), invMassMin, invMassMax,ptBinsResonance,ptMinResonance,ptMaxResonance);
142 hInvMassBgk_vs_Pt = new TH2F("hInvMassBgk_vs_Pt","hInvMassBgk_vs_Pt",(Int_t) (nBinsPerGev*(invMassMax- invMassMin)), invMassMin, invMassMax,ptBinsResonance,ptMinResonance,ptMaxResonance);
143
144 hInvMassRes = new TH1F("hInvMassRes", "Mu+Mu- invariant mass (GeV/c2) around Resonance",(Int_t) (nBinsPerGev*3*countingRange*2),massResonance-3*countingRange,massResonance+3*countingRange);
145
cfc3191e 146 TH1F *hPrimaryVertex = new TH1F("hPrimaryVertex","SPD reconstructed Z vertex",150,-15,15);
53399039 147 TH1F *hChi2PerDof = new TH1F("hChi2PerDof", "Muon track chi2/d.o.f.", 100, 0., 20.);
d949b15e 148 TH1F *hNumberOfTrack = new TH1F("hNumberOfTrack","nb of track /evt ",20,-0.5,19.5);
149 TH1F *hRapMuon = new TH1F("hRapMuon"," Muon Rapidity",50,-4.5,-2);
150 TH1F *hRapResonance = new TH1F("hRapResonance"," Resonance Rapidity",50,-4.5,-2);
151 TH1F *hPtResonance = new TH1F("hPtResonance", "Resonance Pt (GeV/c)", 100, 0., 20.);
152 TH2F *hThetaPhiPlus = new TH2F("hThetaPhiPlus", "Theta vs Phi +", 760, -190., 190., 400, 160., 180.);
153 TH2F *hThetaPhiMinus = new TH2F("hThetaPhiMinus", "Theta vs Phi -", 760, -190., 190., 400, 160., 180.);
53399039 154
d949b15e 155 TNtuple *ESDtuple = new TNtuple("ESDtuple","Reconstructed Mu+Mu- pairs and Upsilon","ev:tw:pt:y:theta:minv:pt1:y1:theta1:q1:trig1:pt2:y2:theta2:q2:trig2");
156 TNtuple *ESDtupleBck = new TNtuple("ESDtupleBck","Reconstructed Mu+Mu- pairs for Background","ev:pt:y:theta:minv:pt1:y1:theta1:pt2:y2:theta2");
157
158
53399039 159 // Variables
d949b15e 160 Int_t EventInMass = 0;
53399039 161 Int_t EventInMassMatch = 0;
162 Int_t NbTrigger = 0;
163 Int_t ptTrig = 0;
d949b15e 164
cfc3191e 165 Double_t fXVertex=0;
166 Double_t fYVertex=0;
167 Double_t fZVertex=0;
168
d949b15e 169 Double_t thetaX, thetaY, pYZ;
170 Double_t fPxRec1, fPyRec1, fPzRec1, fE1;
171 Double_t fPxRec2, fPyRec2, fPzRec2, fE2;
172 Int_t fCharge1, fCharge2;
173
53399039 174 Int_t ntrackhits, nevents;
175 Int_t nprocessedevents = 0 ;
d949b15e 176 Double_t fitfmin;
177
178 TLorentzVector fV1, fV2, fVtot;
179
3f6289e9 180 // set mag field
181 // waiting for mag field in CDB
182 printf("Loading field map...\n");
b97b210c 183 AliMagFMaps* field = new AliMagFMaps("Maps","Maps", 1, 1., 10., AliMagFMaps::k5kG);
3f6289e9 184 AliTracker::SetFieldMap(field, kFALSE);
d949b15e 185
186 // open run loader and load gAlice, kinematics and header
187 AliRunLoader* runLoader = AliRunLoader::Open(filename);
188 if (!runLoader) {
189 Error("MUONefficiency", "getting run loader from file %s failed", filename);
190 return kFALSE;
191 }
192
193 runLoader->LoadgAlice();
194 gAlice = runLoader->GetAliRun();
195 if (!gAlice) {
196 Error("MUONefficiency", "no galice object found");
197 return kFALSE;
198 }
199
200 // open the ESD file
201 TFile* esdFile = TFile::Open(esdFileName);
202 if (!esdFile || !esdFile->IsOpen()) {
203 Error("MUONefficiency", "opening ESD file %s failed", esdFileName);
204 return kFALSE;
205 }
206
207 AliESD* esd = new AliESD();
208 TTree* tree = (TTree*) esdFile->Get("esdTree");
209 if (!tree) {
210 Error("CheckESD", "no ESD tree found");
211 return kFALSE;
212 }
213 tree->SetBranchAddress("ESD", &esd);
214
215 runLoader->LoadHeader();
216 nevents = runLoader->GetNumberOfEvents();
cfc3191e 217 AliMUONTrackParam trackParam;
218
d949b15e 219 // to access the particle Stack
220 runLoader->LoadKinematics("READ");
221
53399039 222 Int_t numberOfGeneratedResonances = 0 ;
223
d949b15e 224 TParticle *particle;
53399039 225
d949b15e 226 Int_t track1Trigger = 0 ;
227 Float_t track1TriggerChi2 = 0 ;
d949b15e 228 Int_t track2Trigger = 0 ;
229 Float_t track2TriggerChi2 = 0 ;
230
231
232 // Loop over events
233 for (Int_t iEvent = FirstEvent; iEvent <= TMath::Min(LastEvent, nevents - 1); iEvent++) { // Start event loop
234
235 if (iEvent%1000 == 0 )
236 printf("\n Nb of events analysed: %d \n",iEvent);
237
238 // get current event
239 runLoader->GetEvent(iEvent);
53399039 240 nprocessedevents++;
241
d949b15e 242 // get the stack and fill the kine tree
243 AliStack *theStack = runLoader->Stack();
244 if (PRINTLEVEL > 0) theStack->DumpPStack ();
245
246 Int_t nparticles = (Int_t)runLoader->TreeK()->GetEntries();
247 Int_t nprimarypart = theStack->GetNprimary();
248 Int_t ntracks = theStack->GetNtrack();
53399039 249
d949b15e 250 if (PRINTLEVEL || (iEvent%100==0)) printf("\n >>> Event %d \n",iEvent);
cfc3191e 251 if (PRINTLEVEL) cout << nprimarypart << " Particles generated (total is " << ntracks << ")"<< endl ;
d949b15e 252
253 for(Int_t iparticle=0; iparticle<nparticles; iparticle++) { // Start loop over particles
254 particle = theStack->Particle(iparticle);
255
256 Int_t muId = particle->GetPdgCode();
257 Int_t muM = particle->GetFirstMother();
258 Int_t muGM = 0;
259 Float_t muP = particle->P();
260 Float_t muPt = TMath::Sqrt(particle->Px()*particle->Px()+particle->Py()*particle->Py());
261 Float_t muY = 0.5*TMath::Log((particle->Energy()+particle->Pz()+1.e-13)/(particle->Energy()-particle->Pz()+1.e-13));
262 if (muM >= 0) {
d949b15e 263 TParticle *theMum = theStack->Particle(muM);
264 muM = theMum->GetPdgCode();
d949b15e 265 muGM = theMum->GetFirstMother() ;
266 if (muGM >= 0){
267 TParticle *grandMa = theStack->Particle(muGM);
268 muGM = grandMa->GetPdgCode();
269 }
270 else muGM=0;
271 }
272 else muM=0;
53399039 273
274 if (muId==ResType) numberOfGeneratedResonances++;
275
276
d949b15e 277 Float_t muT = particle->Theta()*180/TMath::Pi();
278 Float_t muE = particle->Eta();
279
280 Float_t muVx = particle->Vx();
281 Float_t muVy = particle->Vy();
282 Float_t muVz = particle->Vz();
283
284 // If a write error occurs, the number of bytes returned is -1.
285 // If no data are written, because e.g. the branch is disabled,
286 // the number of bytes returned is 0.
287 Int_t errCode = Ktuple->Fill(iEvent,nparticles,muId,muM,muGM,muP,muPt,muY,muT,muE,muVx,muVy,muVz);
288 if (PRINTLEVEL || errCode < 1) printf("iEvent %d,nparticles %d,muId %d,muM %d,muGM %d,muP %.2f,muPt %.2f,muY %.2f,muT %.2f,muE %.2f,muVx %.2f,muVy %.2f,muVz %.2f \n", iEvent,nparticles,muId,muM,muGM,muP,muPt,muY,muT,muE,muVx,muVy,muVz);
289
290 } // End loop over particles
291
292
293
294 // get the event summary data
295 tree->GetEvent(iEvent);
296 if (!esd) {
297 Error("CheckESD", "no ESD object found for event %d", iEvent);
298 return kFALSE;
299 }
cfc3191e 300
301 // get the SPD reconstructed vertex (vertexer) and fill the histogram
43939bd8 302 AliESDVertex* Vertex = (AliESDVertex*) esd->GetVertex();
303 if (Vertex->GetNContributors()) {
cfc3191e 304 fZVertex = Vertex->GetZv();
305 fYVertex = Vertex->GetYv();
306 fXVertex = Vertex->GetXv();
307 }
308 hPrimaryVertex->Fill(fZVertex);
309
f57d136a 310 Int_t triggerWord = esd->GetTriggerMask();
d949b15e 311 Int_t nTracks = (Int_t)esd->GetNumberOfMuonTracks() ;
312
313 if (PRINTLEVEL > 0){
314 printf("\n Nb of events analysed: %d \n",iEvent);
315 cout << " number of tracks: " << nTracks <<endl;
316 }
317
37827b29 318 // set the magnetic field for track extrapolations
319 AliMUONTrackExtrap::SetField(AliTracker::GetFieldMap());
d949b15e 320 // loop over all reconstructed tracks (also first track of combination)
321 for (Int_t iTrack = 0; iTrack < nTracks; iTrack++) {
322
323 AliESDMuonTrack* muonTrack = esd->GetMuonTrack(iTrack);
324
43939bd8 325 if (!Vertex->GetNContributors()) {
cfc3191e 326 //re-extrapolate to vertex, if not kown before.
327 trackParam.GetParamFrom(*muonTrack);
37827b29 328 AliMUONTrackExtrap::ExtrapToVertex(&trackParam, fXVertex, fYVertex, fZVertex);
cfc3191e 329 trackParam.SetParamFor(*muonTrack);
d949b15e 330 }
331
332 // Trigger
333 if (PRINTLEVEL > 5) cout << "MatchTrigger " << muonTrack->GetMatchTrigger() << " and Chi2 of matching tracks " << track1TriggerChi2 << endl ;
334 track1Trigger = muonTrack->GetMatchTrigger();
335 if (track1Trigger)
336 track1TriggerChi2 = muonTrack->GetChi2MatchTrigger();
337 else
338 track1TriggerChi2 = 0. ;
339
340 thetaX = muonTrack->GetThetaX();
341 thetaY = muonTrack->GetThetaY();
342
343 pYZ = 1./TMath::Abs(muonTrack->GetInverseBendingMomentum());
344 fPzRec1 = - pYZ / TMath::Sqrt(1.0 + TMath::Tan(thetaY)*TMath::Tan(thetaY));
345 fPxRec1 = fPzRec1 * TMath::Tan(thetaX);
346 fPyRec1 = fPzRec1 * TMath::Tan(thetaY);
347 fCharge1 = Int_t(TMath::Sign(1.,muonTrack->GetInverseBendingMomentum()));
348
53399039 349 fE1 = TMath::Sqrt(MUON_MASS * MUON_MASS + fPxRec1 * fPxRec1 + fPyRec1 * fPyRec1 + fPzRec1 * fPzRec1);
d949b15e 350 fV1.SetPxPyPzE(fPxRec1, fPyRec1, fPzRec1, fE1);
351
352 ntrackhits = muonTrack->GetNHit();
353 fitfmin = muonTrack->GetChi2();
354
355 // transverse momentum
356 Float_t pt1 = fV1.Pt();
357
358 // total momentum
359 Float_t p1 = fV1.P();
360
361 // Rapidity
362 Float_t rapMuon1 = fV1.Rapidity();
363
364 // chi2 per d.o.f.
365
366 Float_t ch1 = fitfmin / (2.0 * ntrackhits - 5);
367 if (PRINTLEVEL > 5 ) printf(" px %f py %f pz %f pt %f NHits %d Norm.chi2 %f charge %d\n",fPxRec1, fPyRec1, fPzRec1, pt1, ntrackhits, ch1, fCharge1);
368
369
370 if ((ch1 < Chi2Cut) && (pt1 > PtCutMin) && (pt1 < PtCutMax)) { // condition for good track (Chi2Cut and PtCut)
371 if (PRINTLEVEL > 8) cout << "inside pt and chi2 cuts " << endl ;
372
373 // fill histos hPtMuon and hChi2PerDof
374 hPtMuon->Fill(pt1);
375 hPMuon->Fill(p1);
376 hChi2PerDof->Fill(ch1);
377 hRapMuon->Fill(rapMuon1);
378
379 if (fCharge1 > 0) {
380 hPtMuonPlus->Fill(pt1);
381 hThetaPhiPlus->Fill(TMath::ATan2(fPyRec1,fPxRec1)*180./TMath::Pi(),TMath::ATan2(pt1,fPzRec1)*180./3.1415);
382 } else {
383 hPtMuonMinus->Fill(pt1);
384 hThetaPhiMinus->Fill(TMath::ATan2(fPyRec1,fPxRec1)*180./TMath::Pi(),TMath::ATan2(pt1,fPzRec1)*180./3.1415);
385 }
386
387 // loop over second track of combination
388 for (Int_t iTrack2 = iTrack + 1; iTrack2 < nTracks; iTrack2++) {
389
390 AliESDMuonTrack* muonTrack = esd->GetMuonTrack(iTrack2);
cfc3191e 391
43939bd8 392 if (!Vertex->GetNContributors()) {
cfc3191e 393 trackParam.GetParamFrom(*muonTrack);
37827b29 394 AliMUONTrackExtrap::ExtrapToVertex(&trackParam, fXVertex, fYVertex, fZVertex);
cfc3191e 395 trackParam.SetParamFor(*muonTrack);
d949b15e 396 }
397
398 track2Trigger = muonTrack->GetMatchTrigger();
399 if (track2Trigger)
400 track2TriggerChi2 = muonTrack->GetChi2MatchTrigger();
401 else
402 track2TriggerChi2 = 0. ;
403
404 thetaX = muonTrack->GetThetaX();
405 thetaY = muonTrack->GetThetaY();
406
407 pYZ = 1./TMath::Abs(muonTrack->GetInverseBendingMomentum());
408 fPzRec2 = - pYZ / TMath::Sqrt(1.0 + TMath::Tan(thetaY)*TMath::Tan(thetaY));
409 fPxRec2 = fPzRec2 * TMath::Tan(thetaX);
410 fPyRec2 = fPzRec2 * TMath::Tan(thetaY);
411 fCharge2 = Int_t(TMath::Sign(1.,muonTrack->GetInverseBendingMomentum()));
412
53399039 413 fE2 = TMath::Sqrt(MUON_MASS * MUON_MASS + fPxRec2 * fPxRec2 + fPyRec2 * fPyRec2 + fPzRec2 * fPzRec2);
d949b15e 414 fV2.SetPxPyPzE(fPxRec2, fPyRec2, fPzRec2, fE2);
415
416 ntrackhits = muonTrack->GetNHit();
417 fitfmin = muonTrack->GetChi2();
418
419 // transverse momentum
420 Float_t pt2 = fV2.Pt();
421
422 // chi2 per d.o.f.
423 Float_t ch2 = fitfmin / (2.0 * ntrackhits - 5);
424
d949b15e 425
cfc3191e 426 // condition for good track (Chi2Cut and PtCut)
427 if ((ch2 < Chi2Cut) && (pt2 > PtCutMin) && (pt2 < PtCutMax)) {
d949b15e 428
cfc3191e 429 // condition for opposite charges
430 if ((fCharge1 * fCharge2) == -1) {
431
432 if (PRINTLEVEL > 8) cout << "---------> Now filling the Ntuple " << endl ;
433
434 // invariant mass
435 fVtot = fV1 + fV2;
436 Float_t invMass = fVtot.M();
437
438 if (fCharge1 < 0){ //mu_minus is index 1 in the ntuple
439 Float_t ESDFill[16] = {iEvent,triggerWord,fVtot.Pt(),fVtot.Rapidity(),fVtot.Theta()/TMath::Pi()*180,invMass,fV1.Pt(),fV1.Rapidity(),fV1.Theta()/TMath::Pi()*180,fCharge1,track1TriggerChi2,fV2.Pt(),fV2.Rapidity(),fV2.Theta()/TMath::Pi()*180,fCharge2,track2TriggerChi2};
440 ESDtuple->Fill(ESDFill);
441 }
442 else{
443 Float_t ESDFill[16] = {iEvent,triggerWord,fVtot.Pt(),fVtot.Rapidity(),fVtot.Theta()/TMath::Pi()*180,invMass,fV2.Pt(),fV2.Rapidity(),fV2.Theta()/TMath::Pi()*180,fCharge2,track2TriggerChi2,fV1.Pt(),fV1.Rapidity(),fV1.Theta()/TMath::Pi()*180,fCharge1,track1TriggerChi2};
444 ESDtuple->Fill(ESDFill);
445 }
446
447 // fill histos hInvMassAll and hInvMassRes
448 hInvMassAll->Fill(invMass);
449 hInvMassRes->Fill(invMass);
450 hInvMassAll_vs_Pt->Fill(invMass,fVtot.Pt());
451
452 //trigger info
453 if (ResType == 553)
8d4fefab 454 ptTrig = 0x20;// mask for Hpt unlike sign pair
cfc3191e 455 else if (ResType == 443)
8d4fefab 456 ptTrig = 0x10;// mask for Lpt unlike sign pair
cfc3191e 457
458
459 if (esd->GetTriggerMask() & ptTrig) NbTrigger++;
460
461 if (invMass > invMassMinInPeak && invMass < invMassMaxInPeak) {
462 EventInMass++;
463 hRapResonance->Fill(fVtot.Rapidity());
464 hPtResonance->Fill(fVtot.Pt());
53399039 465
cfc3191e 466 // match with trigger
467 if (muonTrack->GetMatchTrigger() && (esd->GetTriggerMask() & ptTrig)) EventInMassMatch++;
53399039 468
cfc3191e 469 }
470
471 } // if (fCharge1 * fCharge2) == -1)
472 } // if ((ch2 < Chi2Cut) && (pt2 > PtCutMin) && (pt2 < PtCutMax))
d949b15e 473 } // for (Int_t iTrack2 = iTrack + 1; iTrack2 < iTrack; iTrack2++)
474 } // if (ch1 < Chi2Cut) && (pt1 > PtCutMin)&& (pt1 < PtCutMax) )
475 } // for (Int_t iTrack = 0; iTrack < nrectracks; iTrack++)
476
477 hNumberOfTrack->Fill(nTracks);
478 // esdFile->Delete();
479
480 } // End of event loop
481
482
483 // Loop over events for bg event
484
485 Double_t thetaPlus, phiPlus;
486 Double_t thetaMinus, phiMinus;
487 Float_t PtMinus, PtPlus;
488
489 for (Int_t iEvent = 0; iEvent < hInvMassAll->Integral(); iEvent++) { // Loop over events for bg event
53399039 490 // according to Christian a 3d phi-theta-pt random pick would take better care
d949b15e 491 // of all correlations
492
493 hThetaPhiPlus->GetRandom2(phiPlus, thetaPlus);
494 hThetaPhiMinus->GetRandom2(phiMinus,thetaMinus);
495 PtPlus = hPtMuonPlus->GetRandom();
496 PtMinus = hPtMuonMinus->GetRandom();
497
498 fPxRec1 = PtPlus * TMath::Cos(TMath::Pi()/180.*phiPlus);
499 fPyRec1 = PtPlus * TMath::Sin(TMath::Pi()/180.*phiPlus);
500 fPzRec1 = PtPlus / TMath::Tan(TMath::Pi()/180.*thetaPlus);
501
53399039 502 fE1 = TMath::Sqrt(MUON_MASS * MUON_MASS + fPxRec1 * fPxRec1 + fPyRec1 * fPyRec1 + fPzRec1 * fPzRec1);
d949b15e 503 fV1.SetPxPyPzE(fPxRec1, fPyRec1, fPzRec1, fE1);
504
505 fPxRec2 = PtMinus * TMath::Cos(TMath::Pi()/180.*phiMinus);
506 fPyRec2 = PtMinus * TMath::Sin(TMath::Pi()/180.*phiMinus);
507 fPzRec2 = PtMinus / TMath::Tan(TMath::Pi()/180.*thetaMinus);
508
53399039 509 fE2 = TMath::Sqrt(MUON_MASS * MUON_MASS + fPxRec2 * fPxRec2 + fPyRec2 * fPyRec2 + fPzRec2 * fPzRec2);
d949b15e 510 fV2.SetPxPyPzE(fPxRec2, fPyRec2, fPzRec2, fE2);
511
512 // invariant mass
513 fVtot = fV1 + fV2;
514
515 // fill histos hInvMassAll and hInvMassRes
516 hInvMassBg->Fill(fVtot.M());
517 hInvMassBgk_vs_Pt->Fill( fVtot.M(), fVtot.Pt() );
518
519 // Ntuple for background... more convenient
520 ESDtupleBck->Fill(iEvent,fVtot.Pt(),fVtot.Rapidity(),fVtot.Theta()/TMath::Pi()*180,fVtot.M(),fV2.Pt(),fV2.Rapidity(),fV2.Theta()/TMath::Pi()*180,fV1.Pt(),fV1.Rapidity(),fV1.Theta()/TMath::Pi()*180);
521
522 } // End loop over events for background
523
524
525 // File for histograms and histogram booking
526 TString outfilename = "MUONefficiency.root";
53399039 527 TFile *ntupleFile = new TFile(outfilename.Data(), "RECREATE");
d949b15e 528
529 Ktuple->Write();
530 ESDtuple->Write();
53399039 531 ESDtupleBck->Write();
532
533 ntupleFile->Close();
d949b15e 534
53399039 535 TFile *histoFile = new TFile("MUONhistos.root", "RECREATE");
cfc3191e 536 hPrimaryVertex->Write();
53399039 537 hPtMuon->Write();
538 hPtMuonPlus->Write();
539 hPtMuonMinus->Write();
540 hPMuon->Write();
541 hChi2PerDof->Write();
542 hInvMassAll->Write();
543 hInvMassBg->Write();
544 hInvMassAll_vs_Pt ->Write();
545 hInvMassBgk_vs_Pt->Write();
546 hInvMassRes->Write();
547 hNumberOfTrack->Write();
548 hRapMuon ->Write();
549 hRapResonance ->Write();
550 hPtResonance ->Write();
551 hThetaPhiPlus ->Write();
552 hThetaPhiMinus ->Write();
d949b15e 553 histoFile->Close();
53399039 554
555 cout << "" << endl ;
556 cout << "*************************************************" << endl;
557
558 cout << "MUONefficiency : " << nprocessedevents << " events processed" << endl;
559 if (ResType==443)
560 cout << "Number of generated J/Psi (443) : " << numberOfGeneratedResonances << endl ;
561 if (ResType==553)
562 cout << "Number of generated Upsilon (553) :" << numberOfGeneratedResonances << endl ;
563 cout << "Chi2Cut for muon tracks = " << Chi2Cut << endl;
564 cout << "PtCutMin for muon tracks = " << PtCutMin << endl;
565 cout << "PtCutMax for muon tracks = " << PtCutMax << endl;
566 cout << "Entries (unlike sign dimuons) in the mass range ["<<invMassMinInPeak<<";"<<invMassMaxInPeak<<"] : " << EventInMass <<endl;
567 if (ptTrig==0x800) cout << "Unlike Pair - All Pt" ;
568 if (ptTrig==0x400) cout << "Unlike Pair - High Pt" ;
569 if (ptTrig==0x200) cout << "Unlike Pair - Low Pt" ;
570 cout << " triggers : " << NbTrigger << endl;
d949b15e 571
53399039 572 cout << "Entries in the mass range with matching between reconstructed tracks and trigger tracks " << EventInMassMatch << endl;
573
d949b15e 574
575 return kTRUE;
576}