Upgraded version of MUONmassPlot_ESD.C
[u/mrichter/AliRoot.git] / MUON / MUONefficiency.C
CommitLineData
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
18// Macro (upgraded version of MUONmassPlot_ESD.C) to make :
19// 1) Ntuple (Ktuple) containing Upsilon kinematics variables (from kinematics.root files)
20// 2) Ntuple (ESDtuple) containing Upsilon kinematics variables from reconstruction and
21// combinations of 2 muons with opposite charges,
22// 3) Some QA histograms
23// Ntuple are stored in the file MUONefficiency.root and ESD tree and QA histograms in AliESDs.root
24
25// Arguments:
26// FirstEvent (default 0)
27// LastEvent (default 0)
28// ResType (default 553)
29// 553 for Upsilon, anything else for J/Psi
30// Chi2Cut (default 100)
31// to keep only tracks with chi2 per d.o.f. < Chi2Cut
32// PtCutMin (default 1)
33// to keep only tracks with transverse momentum > PtCutMin
34// PtCutMax (default 10000)
35// to keep only tracks with transverse momentum < PtCutMax
36// massMin (default 9.17 for Upsilon)
37// & massMax (default 9.77 for Upsilon)
38// to calculate the reconstruction efficiency for resonances with invariant mass
39// massMin < mass < massMax.
40
41// Add parameters and histograms for analysis
42
43// Christophe Suire, IPN Orsay
44
45#if !defined(__CINT__) || defined(__MAKECINT__)
46// ROOT includes
47#include "TTree.h"
48#include "TBranch.h"
49#include "TClonesArray.h"
50#include "TLorentzVector.h"
51#include "TFile.h"
52#include "TH1.h"
53#include "TH2.h"
54#include "TParticle.h"
55#include "TTree.h"
56#include "TString.h"
57#include <Riostream.h>
58
59// STEER includes
60#include "AliRun.h"
61#include "AliRunLoader.h"
62#include "AliHeader.h"
63#include "AliLoader.h"
64#include "AliStack.h"
65#include "AliMagF.h"
66#include "AliESD.h"
67
68// MUON includes
69#include "AliESDMuonTrack.h"
70#endif
71
72
73Bool_t MUONefficiency(char* filename = "galice.root", Int_t FirstEvent = 0, Int_t LastEvent = 11000000,
74 char* esdFileName = "AliESDs.root", Int_t ResType = 553,
75 Float_t Chi2Cut = 100., Float_t PtCutMin = 0., Float_t PtCutMax = 10000.,
76 Float_t massMin = 9.17,Float_t massMax = 9.77)
77{ // MUONefficiency starts
78 cout << "MUONmassPlot " << endl;
79 cout << "FirstEvent " << FirstEvent << endl;
80 cout << "LastEvent " << LastEvent << endl;
81 cout << "ResType " << ResType << endl;
82 cout << "Chi2Cut " << Chi2Cut << endl;
83 cout << "PtCutMin " << PtCutMin << endl;
84 cout << "PtCutMax " << PtCutMax << endl;
85 cout << "massMin " << massMin << endl;
86 cout << "massMax " << massMax << endl;
87
88
89 //Reset ROOT and connect tree file
90 gROOT->Reset();
91
92 // Printing Level
93 Int_t PRINTLEVEL = 0 ;
94 Int_t SELECT = 0 ; // not used
95
96 //for kinematic, i.e. reference tracks
97 TNtuple *Ktuple = new TNtuple("Ktuple","Kinematics NTuple","ev:npart:id:idmo:idgdmo:p:pt:y:theta:pseudorap:vx:vy:vz");
98
99 //for reconstruction
100 TH1F *hPtMuon = new TH1F("hPtMuon", "Muon Pt (GeV/c)", 100, 0., 20.);
101 TH1F *hPtMuonPlus = new TH1F("hPtMuonPlus", "Muon+ Pt (GeV/c)", 100, 0., 20.);
102 TH1F *hPtMuonMinus = new TH1F("hPtMuonMinus", "Muon- Pt (GeV/c)", 100, 0., 20.);
103 TH1F *hPMuon = new TH1F("hPMuon", "Muon P (GeV/c)", 100, 0., 200.);
104 TH1F *hChi2PerDof = new TH1F("hChi2PerDof", "Muon track chi2/d.o.f.", 100, 0., 20.);
105 TH1F *hInvMassAll = new TH1F("hInvMassAll", "Mu+Mu- invariant mass (GeV/c2)", 480, 0., 12.);
106 TH1F *hInvMassBg = new TH1F("hInvMassBg", "Mu+Mu- invariant mass BG(GeV/c2)", 480, 0., 12.);
107 TH2F *hInvMassAll_vs_Pt = new TH2F("hInvMassAll_vs_Pt","hInvMassAll_vs_Pt",480,0.,12.,80,0.,20.);
108 TH2F *hInvMassBgk_vs_Pt = new TH2F("hInvMassBgk_vs_Pt","hInvMassBgk_vs_Pt",480,0.,12.,80,0.,20.);
109 TH1F *hInvMassRes;
110 if (ResType == 553) {
111 hInvMassRes = new TH1F("hInvMassRes", "Mu+Mu- invariant mass (GeV/c2) around Upsilon", 60, 8., 11.);
112 } else {
113 hInvMassRes = new TH1F("hInvMassRes", "Mu+Mu- invariant mass (GeV/c2) around J/Psi", 80, 0., 5.);
114 }
115
116 TH1F *hNumberOfTrack = new TH1F("hNumberOfTrack","nb of track /evt ",20,-0.5,19.5);
117 TH1F *hRapMuon = new TH1F("hRapMuon"," Muon Rapidity",50,-4.5,-2);
118 TH1F *hRapResonance = new TH1F("hRapResonance"," Resonance Rapidity",50,-4.5,-2);
119 TH1F *hPtResonance = new TH1F("hPtResonance", "Resonance Pt (GeV/c)", 100, 0., 20.);
120 TH2F *hThetaPhiPlus = new TH2F("hThetaPhiPlus", "Theta vs Phi +", 760, -190., 190., 400, 160., 180.);
121 TH2F *hThetaPhiMinus = new TH2F("hThetaPhiMinus", "Theta vs Phi -", 760, -190., 190., 400, 160., 180.);
122
123 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");
124 TNtuple *ESDtupleBck = new TNtuple("ESDtupleBck","Reconstructed Mu+Mu- pairs for Background","ev:pt:y:theta:minv:pt1:y1:theta1:pt2:y2:theta2");
125
126
127 // settings
128 Int_t EventInMass = 0;
129 Float_t muonMass = 0.105658389;
130 Float_t UpsilonMass = 9.46037;
131 Float_t JPsiMass = 3.097;
132
133 Double_t thetaX, thetaY, pYZ;
134 Double_t fPxRec1, fPyRec1, fPzRec1, fE1;
135 Double_t fPxRec2, fPyRec2, fPzRec2, fE2;
136 Int_t fCharge1, fCharge2;
137
138 Int_t ntrackhits, nevents;
139 Double_t fitfmin;
140
141 TLorentzVector fV1, fV2, fVtot;
142
143 // set off mag field
144 AliMagF::SetReadField(kFALSE);
145
146 // open run loader and load gAlice, kinematics and header
147 AliRunLoader* runLoader = AliRunLoader::Open(filename);
148 if (!runLoader) {
149 Error("MUONefficiency", "getting run loader from file %s failed", filename);
150 return kFALSE;
151 }
152
153 runLoader->LoadgAlice();
154 gAlice = runLoader->GetAliRun();
155 if (!gAlice) {
156 Error("MUONefficiency", "no galice object found");
157 return kFALSE;
158 }
159
160 // open the ESD file
161 TFile* esdFile = TFile::Open(esdFileName);
162 if (!esdFile || !esdFile->IsOpen()) {
163 Error("MUONefficiency", "opening ESD file %s failed", esdFileName);
164 return kFALSE;
165 }
166
167 AliESD* esd = new AliESD();
168 TTree* tree = (TTree*) esdFile->Get("esdTree");
169 if (!tree) {
170 Error("CheckESD", "no ESD tree found");
171 return kFALSE;
172 }
173 tree->SetBranchAddress("ESD", &esd);
174
175 runLoader->LoadHeader();
176 nevents = runLoader->GetNumberOfEvents();
177
178 // to access the particle Stack
179 runLoader->LoadKinematics("READ");
180
181 TParticle *particle;
182 Int_t track1Id = 0 ;
183 Int_t track1PDGId = 0 ;
184 Int_t track1MotherId = 0 ;
185 Int_t track1MotherPDGId = 0 ;
186 Int_t track1Trigger = 0 ;
187 Float_t track1TriggerChi2 = 0 ;
188 Int_t track2Id = 0 ;
189 Int_t track2PDGId = 0 ;
190 Int_t track2MotherId = 0 ;
191 Int_t track2MotherPDGId = 0 ;
192 Int_t track2Trigger = 0 ;
193 Float_t track2TriggerChi2 = 0 ;
194
195
196 // Loop over events
197 for (Int_t iEvent = FirstEvent; iEvent <= TMath::Min(LastEvent, nevents - 1); iEvent++) { // Start event loop
198
199 if (iEvent%1000 == 0 )
200 printf("\n Nb of events analysed: %d \n",iEvent);
201
202 // get current event
203 runLoader->GetEvent(iEvent);
204
205 // get the stack and fill the kine tree
206 AliStack *theStack = runLoader->Stack();
207 if (PRINTLEVEL > 0) theStack->DumpPStack ();
208
209 Int_t nparticles = (Int_t)runLoader->TreeK()->GetEntries();
210 Int_t nprimarypart = theStack->GetNprimary();
211 Int_t ntracks = theStack->GetNtrack();
212
213 if (PRINTLEVEL || (iEvent%100==0)) printf("\n >>> Event %d \n",iEvent);
214 if (PRINTLEVEL) cout << nprimarypart << " Particles generated (total is " << ntracks << ")"<< endl ;
215
216
217
218 for(Int_t iparticle=0; iparticle<nparticles; iparticle++) { // Start loop over particles
219 particle = theStack->Particle(iparticle);
220
221 Int_t muId = particle->GetPdgCode();
222 Int_t muM = particle->GetFirstMother();
223 Int_t muGM = 0;
224 Float_t muP = particle->P();
225 Float_t muPt = TMath::Sqrt(particle->Px()*particle->Px()+particle->Py()*particle->Py());
226 Float_t muY = 0.5*TMath::Log((particle->Energy()+particle->Pz()+1.e-13)/(particle->Energy()-particle->Pz()+1.e-13));
227 if (muM >= 0) {
228 //cout << "in stack " << partM << endl ;
229 TParticle *theMum = theStack->Particle(muM);
230 muM = theMum->GetPdgCode();
231 //cout << "the Mum " << partM << endl ;
232
233 muGM = theMum->GetFirstMother() ;
234 if (muGM >= 0){
235 TParticle *grandMa = theStack->Particle(muGM);
236 muGM = grandMa->GetPdgCode();
237 }
238 else muGM=0;
239 }
240 else muM=0;
241
242 Float_t muT = particle->Theta()*180/TMath::Pi();
243 Float_t muE = particle->Eta();
244
245 Float_t muVx = particle->Vx();
246 Float_t muVy = particle->Vy();
247 Float_t muVz = particle->Vz();
248
249 // If a write error occurs, the number of bytes returned is -1.
250 // If no data are written, because e.g. the branch is disabled,
251 // the number of bytes returned is 0.
252 Int_t errCode = Ktuple->Fill(iEvent,nparticles,muId,muM,muGM,muP,muPt,muY,muT,muE,muVx,muVy,muVz);
253 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);
254
255 } // End loop over particles
256
257
258
259 // get the event summary data
260 tree->GetEvent(iEvent);
261 if (!esd) {
262 Error("CheckESD", "no ESD object found for event %d", iEvent);
263 return kFALSE;
264 }
265
266 Int_t triggerWord = esd->GetTrigger();
267 Int_t nTracks = (Int_t)esd->GetNumberOfMuonTracks() ;
268
269 if (PRINTLEVEL > 0){
270 printf("\n Nb of events analysed: %d \n",iEvent);
271 cout << " number of tracks: " << nTracks <<endl;
272 }
273
274 // loop over all reconstructed tracks (also first track of combination)
275 for (Int_t iTrack = 0; iTrack < nTracks; iTrack++) {
276
277 AliESDMuonTrack* muonTrack = esd->GetMuonTrack(iTrack);
278
279 //if (PRINTLEVEL > 5) cout << "1st muonTrack->GetTrackID() : " << track1Id << endl;
280
281 if(SELECT && track1Id) {
282 particle = theStack->Particle(track1Id);
283 track1PDGId = particle->GetPdgCode() ;
284 track1MotherId = particle->GetFirstMother();
285 if (track1MotherId >=0 )
286 track1MotherPDGId = ((TParticle*) theStack->Particle(track1MotherId))->GetPdgCode();
287 if (PRINTLEVEL > 0) cout << "track1MotherPDGId = " << track1MotherPDGId << endl ;
288 }
289
290 // Trigger
291 if (PRINTLEVEL > 5) cout << "MatchTrigger " << muonTrack->GetMatchTrigger() << " and Chi2 of matching tracks " << track1TriggerChi2 << endl ;
292 track1Trigger = muonTrack->GetMatchTrigger();
293 if (track1Trigger)
294 track1TriggerChi2 = muonTrack->GetChi2MatchTrigger();
295 else
296 track1TriggerChi2 = 0. ;
297
298 thetaX = muonTrack->GetThetaX();
299 thetaY = muonTrack->GetThetaY();
300
301 pYZ = 1./TMath::Abs(muonTrack->GetInverseBendingMomentum());
302 fPzRec1 = - pYZ / TMath::Sqrt(1.0 + TMath::Tan(thetaY)*TMath::Tan(thetaY));
303 fPxRec1 = fPzRec1 * TMath::Tan(thetaX);
304 fPyRec1 = fPzRec1 * TMath::Tan(thetaY);
305 fCharge1 = Int_t(TMath::Sign(1.,muonTrack->GetInverseBendingMomentum()));
306
307 fE1 = TMath::Sqrt(muonMass * muonMass + fPxRec1 * fPxRec1 + fPyRec1 * fPyRec1 + fPzRec1 * fPzRec1);
308 fV1.SetPxPyPzE(fPxRec1, fPyRec1, fPzRec1, fE1);
309
310 ntrackhits = muonTrack->GetNHit();
311 fitfmin = muonTrack->GetChi2();
312
313 // transverse momentum
314 Float_t pt1 = fV1.Pt();
315
316 // total momentum
317 Float_t p1 = fV1.P();
318
319 // Rapidity
320 Float_t rapMuon1 = fV1.Rapidity();
321
322 // chi2 per d.o.f.
323
324 Float_t ch1 = fitfmin / (2.0 * ntrackhits - 5);
325 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);
326
327
328 if ((ch1 < Chi2Cut) && (pt1 > PtCutMin) && (pt1 < PtCutMax)) { // condition for good track (Chi2Cut and PtCut)
329 if (PRINTLEVEL > 8) cout << "inside pt and chi2 cuts " << endl ;
330
331 // fill histos hPtMuon and hChi2PerDof
332 hPtMuon->Fill(pt1);
333 hPMuon->Fill(p1);
334 hChi2PerDof->Fill(ch1);
335 hRapMuon->Fill(rapMuon1);
336
337 if (fCharge1 > 0) {
338 hPtMuonPlus->Fill(pt1);
339 hThetaPhiPlus->Fill(TMath::ATan2(fPyRec1,fPxRec1)*180./TMath::Pi(),TMath::ATan2(pt1,fPzRec1)*180./3.1415);
340 } else {
341 hPtMuonMinus->Fill(pt1);
342 hThetaPhiMinus->Fill(TMath::ATan2(fPyRec1,fPxRec1)*180./TMath::Pi(),TMath::ATan2(pt1,fPzRec1)*180./3.1415);
343 }
344
345 // loop over second track of combination
346 for (Int_t iTrack2 = iTrack + 1; iTrack2 < nTracks; iTrack2++) {
347
348 AliESDMuonTrack* muonTrack = esd->GetMuonTrack(iTrack2);
349 //Int_t track2Id = muonTrack->GetTrackID();
350 //if (PRINTLEVEL > 5) cout << "2nd muonTrack->GetTrackID() : " << track2Id << endl;
351
352 if(SELECT && track2Id) {
353 particle = theStack->Particle(track2Id);
354 track2PDGId = particle->GetPdgCode();
355 track2MotherId = particle->GetFirstMother();
356 if (track2MotherId >=0 )
357 track2MotherPDGId = ((TParticle*) theStack->Particle(track2MotherId))->GetPdgCode();
358 }
359
360 track2Trigger = muonTrack->GetMatchTrigger();
361 if (track2Trigger)
362 track2TriggerChi2 = muonTrack->GetChi2MatchTrigger();
363 else
364 track2TriggerChi2 = 0. ;
365
366 thetaX = muonTrack->GetThetaX();
367 thetaY = muonTrack->GetThetaY();
368
369 pYZ = 1./TMath::Abs(muonTrack->GetInverseBendingMomentum());
370 fPzRec2 = - pYZ / TMath::Sqrt(1.0 + TMath::Tan(thetaY)*TMath::Tan(thetaY));
371 fPxRec2 = fPzRec2 * TMath::Tan(thetaX);
372 fPyRec2 = fPzRec2 * TMath::Tan(thetaY);
373 fCharge2 = Int_t(TMath::Sign(1.,muonTrack->GetInverseBendingMomentum()));
374
375 fE2 = TMath::Sqrt(muonMass * muonMass + fPxRec2 * fPxRec2 + fPyRec2 * fPyRec2 + fPzRec2 * fPzRec2);
376 fV2.SetPxPyPzE(fPxRec2, fPyRec2, fPzRec2, fE2);
377
378 ntrackhits = muonTrack->GetNHit();
379 fitfmin = muonTrack->GetChi2();
380
381 // transverse momentum
382 Float_t pt2 = fV2.Pt();
383
384 // chi2 per d.o.f.
385 Float_t ch2 = fitfmin / (2.0 * ntrackhits - 5);
386
387 if (PRINTLEVEL > 5) cout << "track1MotherId : "<< track1MotherId << " track2MotherId : " << track2MotherId << endl ;
388 if (PRINTLEVEL > 5) cout << "track1MotherPDGId : " << track1MotherPDGId << " track2MotherPDGId : " << track2MotherPDGId << endl ;
389
390 // Select Condition
391 if (!SELECT || (track2MotherId == track1MotherId && track2MotherPDGId == ResType && TMath::Abs(track1PDGId)==13 && TMath::Abs(track2PDGId)==13 )) {
392
393 // condition for good track (Chi2Cut and PtCut)
394 if ((ch2 < Chi2Cut) && (pt2 > PtCutMin) && (pt2 < PtCutMax)) {
395
396 // condition for opposite charges
397 if ((fCharge1 * fCharge2) == -1) {
398
399 if (PRINTLEVEL > 8) cout << "---------> Now filling the Ntuple " << endl ;
400
401 // invariant mass
402 fVtot = fV1 + fV2;
403 Float_t invMass = fVtot.M();
404
405 if (fCharge1 < 0){ //mu_minus is index 1 in the ntuple
406 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};
407 ESDtuple->Fill(ESDFill);
408 }
409 else{
410 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};
411 ESDtuple->Fill(ESDFill);
412 }
413
414 // fill histos hInvMassAll and hInvMassRes
415 hInvMassAll->Fill(invMass);
416 hInvMassRes->Fill(invMass);
417 hInvMassAll_vs_Pt->Fill(invMass,fVtot.Pt());
418 if (invMass > massMin && invMass < massMax) {
419 EventInMass++;
420 hRapResonance->Fill(fVtot.Rapidity());
421 hPtResonance->Fill(fVtot.Pt());
422 }
423
424 } // if (fCharge1 * fCharge2) == -1)
425 } // if ((ch2 < Chi2Cut) && (pt2 > PtCutMin) && (pt2 < PtCutMax))
426 } // if (track2MotherId == track1MotherId && track2MotherPDGId == ResType)
427 } // for (Int_t iTrack2 = iTrack + 1; iTrack2 < iTrack; iTrack2++)
428 } // if (ch1 < Chi2Cut) && (pt1 > PtCutMin)&& (pt1 < PtCutMax) )
429 } // for (Int_t iTrack = 0; iTrack < nrectracks; iTrack++)
430
431 hNumberOfTrack->Fill(nTracks);
432 // esdFile->Delete();
433
434 } // End of event loop
435
436
437 // Loop over events for bg event
438
439 Double_t thetaPlus, phiPlus;
440 Double_t thetaMinus, phiMinus;
441 Float_t PtMinus, PtPlus;
442
443 for (Int_t iEvent = 0; iEvent < hInvMassAll->Integral(); iEvent++) { // Loop over events for bg event
444 // according to Christian a 3d histo phi-theta-pt would take better care
445 // of all correlations
446
447 hThetaPhiPlus->GetRandom2(phiPlus, thetaPlus);
448 hThetaPhiMinus->GetRandom2(phiMinus,thetaMinus);
449 PtPlus = hPtMuonPlus->GetRandom();
450 PtMinus = hPtMuonMinus->GetRandom();
451
452 fPxRec1 = PtPlus * TMath::Cos(TMath::Pi()/180.*phiPlus);
453 fPyRec1 = PtPlus * TMath::Sin(TMath::Pi()/180.*phiPlus);
454 fPzRec1 = PtPlus / TMath::Tan(TMath::Pi()/180.*thetaPlus);
455
456 fE1 = TMath::Sqrt(muonMass * muonMass + fPxRec1 * fPxRec1 + fPyRec1 * fPyRec1 + fPzRec1 * fPzRec1);
457 fV1.SetPxPyPzE(fPxRec1, fPyRec1, fPzRec1, fE1);
458
459 fPxRec2 = PtMinus * TMath::Cos(TMath::Pi()/180.*phiMinus);
460 fPyRec2 = PtMinus * TMath::Sin(TMath::Pi()/180.*phiMinus);
461 fPzRec2 = PtMinus / TMath::Tan(TMath::Pi()/180.*thetaMinus);
462
463 fE2 = TMath::Sqrt(muonMass * muonMass + fPxRec2 * fPxRec2 + fPyRec2 * fPyRec2 + fPzRec2 * fPzRec2);
464 fV2.SetPxPyPzE(fPxRec2, fPyRec2, fPzRec2, fE2);
465
466 // invariant mass
467 fVtot = fV1 + fV2;
468
469 // fill histos hInvMassAll and hInvMassRes
470 hInvMassBg->Fill(fVtot.M());
471 hInvMassBgk_vs_Pt->Fill( fVtot.M(), fVtot.Pt() );
472
473 // Ntuple for background... more convenient
474 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);
475
476 } // End loop over events for background
477
478
479 // File for histograms and histogram booking
480 TString outfilename = "MUONefficiency.root";
481 TFile *histoFile = new TFile(outfilename.Data(), "RECREATE");
482
483 Ktuple->Write();
484 ESDtuple->Write();
485 //histoFile->Write();
486
487 histoFile->Close();
488
489 cout << "MUONefficiency " << endl;
490 cout << "FirstEvent " << FirstEvent << endl;
491 cout << "LastEvent " << LastEvent << endl;
492 cout << "ResType " << ResType << endl;
493 cout << "Chi2Cut " << Chi2Cut << endl;
494 cout << "PtCutMin " << PtCutMin << endl;
495 cout << "PtCutMax " << PtCutMax << endl;
496 cout << "massMin " << massMin << endl;
497 cout << "massMax " << massMax << endl;
498 cout << "EventInMass " << EventInMass << endl;
499
500 return kTRUE;
501}
502