- Adding a new group for macros
[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
53399039 18// Macro (upgraded version of MUONmassPlot_ESD.C, better handling of Jpsi) to make :
d949b15e 19// 1) Ntuple (Ktuple) containing Upsilon kinematics variables (from kinematics.root files)
20// 2) Ntuple (ESDtuple) containing Upsilon kinematics variables from reconstruction and
53399039 21// combinations of 2 muons with opposite charges (ESDtupleBck will be used later)
d949b15e 22// 3) Some QA histograms
23// Ntuple are stored in the file MUONefficiency.root and ESD tree and QA histograms in AliESDs.root
24
53399039 25// Christophe Suire, IPN Orsay
26
27
28
d949b15e 29// Arguments:
30// FirstEvent (default 0)
53399039 31// LastEvent (default 1.e6)
d949b15e 32// ResType (default 553)
53399039 33// 553 for Upsilon, 443 for J/Psi
d949b15e 34// Chi2Cut (default 100)
35// to keep only tracks with chi2 per d.o.f. < Chi2Cut
d949b15e 36
d949b15e 37
d949b15e 38
39#if !defined(__CINT__) || defined(__MAKECINT__)
5f72cf5b 40
41// MUON includes
42#include "AliMUONTrackParam.h"
43#include "AliMUONTrackExtrap.h"
44#include "AliESDMuonTrack.h"
45
46// STEER includes
47#include "AliRun.h"
48#include "AliRunLoader.h"
49#include "AliHeader.h"
50#include "AliLoader.h"
51#include "AliStack.h"
52#include "AliMagFMaps.h"
53#include "AliESDEvent.h"
54#include "AliESDVertex.h"
55#include "AliTracker.h"
56#include "AliCDBManager.h"
57
d949b15e 58// ROOT includes
59#include "TTree.h"
53399039 60#include "TNtuple.h"
d949b15e 61#include "TBranch.h"
62#include "TClonesArray.h"
63#include "TLorentzVector.h"
64#include "TFile.h"
65#include "TH1.h"
66#include "TH2.h"
67#include "TParticle.h"
68#include "TTree.h"
69#include "TString.h"
70#include <Riostream.h>
8cde4af5 71#include <TGeoManager.h>
da79ec88 72#include <TROOT.h>
d949b15e 73
d949b15e 74#endif
75
8cde4af5 76// Arguments:
77// ExtrapToVertex (default -1)
78// <0: no extrapolation;
79// =0: extrapolation to (0,0,0);
80// >0: extrapolation to ESDVertex if available, else to (0,0,0)
81// ResType (default 553)
82// 553 for Upsilon, anything else for J/Psi
d949b15e 83
6b092dfc 84Bool_t MUONefficiency( char* filename = "galice.root", char* geoFilename = "geometry.root", char* esdFileName = "AliESDs.root",
85 Int_t ExtrapToVertex = -1, Int_t ResType = 553, Int_t FirstEvent = 0, Int_t LastEvent = 1000000 )
d949b15e 86{ // MUONefficiency starts
d949b15e 87
15381c8b 88 // Set default CDB storage
89 AliCDBManager* man = AliCDBManager::Instance();
90 man->SetDefaultStorage("local://$ALICE_ROOT");
91
53399039 92 Double_t MUON_MASS = 0.105658369;
93 Double_t UPSILON_MASS = 9.4603 ;
94 Double_t JPSI_MASS = 3.097;
95
96 // Upper and lower bound for counting entries in the mass peak
97 // +/- 300 MeV/c^2 in this case.
98 Float_t countingRange = 0.300 ;
99
100 Float_t massResonance = 5.;
101 Float_t invMassMinInPeak = 0. ;
102 Float_t invMassMaxInPeak = 0. ;
103
104 Float_t nBinsPerGev = 40 ;
105 Float_t invMassMin = 0; Float_t invMassMax = 20;
106 Float_t ptMinResonance = 0 ; Float_t ptMaxResonance = 20 ; Int_t ptBinsResonance = 100;
107
108 if (ResType==443) {
109 massResonance = JPSI_MASS ;
110 invMassMinInPeak = JPSI_MASS - countingRange ; invMassMaxInPeak = JPSI_MASS + countingRange ;
111 //limits for histograms
112 invMassMin = 0 ; invMassMax = 6.;
113 ptMinResonance = 0 ; ptMaxResonance = 20 ; ptBinsResonance = 100;
114 }
115 if (ResType==553) {
116 massResonance = UPSILON_MASS;
117 invMassMinInPeak = UPSILON_MASS - countingRange ; invMassMaxInPeak = UPSILON_MASS + countingRange;
118 //limits for histograms
119 invMassMin = 0 ; invMassMax = 12.;
120 ptMinResonance = 0 ; ptMaxResonance = 20 ; ptBinsResonance = 100;
121 }
122
123 // Single Tracks muon cuts
124 Float_t Chi2Cut = 100.;
125 Float_t PtCutMin = 0. ;
126 Float_t PtCutMax = 10000. ;
127
128
129 // Limits for histograms
130 Float_t ptMinMuon = 0. ; Float_t ptMaxMuon = 20.; Int_t ptBinsMuon = 100 ;
131 Float_t pMinMuon = 0. ; Float_t pMaxMuon = 200.; Int_t pBinsMuon = 100 ;
d949b15e 132
53399039 133
d949b15e 134 //Reset ROOT and connect tree file
135 gROOT->Reset();
136
137 // Printing Level
138 Int_t PRINTLEVEL = 0 ;
d949b15e 139
140 //for kinematic, i.e. reference tracks
141 TNtuple *Ktuple = new TNtuple("Ktuple","Kinematics NTuple","ev:npart:id:idmo:idgdmo:p:pt:y:theta:pseudorap:vx:vy:vz");
142
53399039 143 //for reconstruction
144 TH1F *hPtMuon = new TH1F("hPtMuon", "Muon Pt (GeV/c)", ptBinsMuon, ptMinMuon, ptMaxMuon);
145 TH1F *hPtMuonPlus = new TH1F("hPtMuonPlus", "Muon+ Pt (GeV/c)", ptBinsMuon, ptMinMuon, ptMaxMuon);
146 TH1F *hPtMuonMinus = new TH1F("hPtMuonMinus", "Muon- Pt (GeV/c)", ptBinsMuon, ptMinMuon, ptMaxMuon);
147 TH1F *hPMuon = new TH1F("hPMuon", "Muon P (GeV/c)", pBinsMuon, pMinMuon, pMaxMuon);
148
149 TH1F *hInvMassAll;
150 TH1F *hInvMassBg;
151 TH2F *hInvMassAll_vs_Pt;
152 TH2F *hInvMassBgk_vs_Pt;
d949b15e 153 TH1F *hInvMassRes;
d949b15e 154
53399039 155
156 hInvMassAll = new TH1F("hInvMassAll", "Mu+Mu- invariant mass (GeV/c2)", (Int_t) (nBinsPerGev*(invMassMax - invMassMin)), invMassMin, invMassMax);
157 hInvMassBg = new TH1F("hInvMassBg", "Mu+Mu- invariant mass BG(GeV/c2)", (Int_t) (nBinsPerGev*(invMassMax- invMassMin)), invMassMin, invMassMax);
158 hInvMassAll_vs_Pt = new TH2F("hInvMassAll_vs_Pt","hInvMassAll_vs_Pt",(Int_t) (nBinsPerGev*(invMassMax- invMassMin)), invMassMin, invMassMax,ptBinsResonance,ptMinResonance,ptMaxResonance);
159 hInvMassBgk_vs_Pt = new TH2F("hInvMassBgk_vs_Pt","hInvMassBgk_vs_Pt",(Int_t) (nBinsPerGev*(invMassMax- invMassMin)), invMassMin, invMassMax,ptBinsResonance,ptMinResonance,ptMaxResonance);
160
161 hInvMassRes = new TH1F("hInvMassRes", "Mu+Mu- invariant mass (GeV/c2) around Resonance",(Int_t) (nBinsPerGev*3*countingRange*2),massResonance-3*countingRange,massResonance+3*countingRange);
162
cfc3191e 163 TH1F *hPrimaryVertex = new TH1F("hPrimaryVertex","SPD reconstructed Z vertex",150,-15,15);
53399039 164 TH1F *hChi2PerDof = new TH1F("hChi2PerDof", "Muon track chi2/d.o.f.", 100, 0., 20.);
d949b15e 165 TH1F *hNumberOfTrack = new TH1F("hNumberOfTrack","nb of track /evt ",20,-0.5,19.5);
166 TH1F *hRapMuon = new TH1F("hRapMuon"," Muon Rapidity",50,-4.5,-2);
167 TH1F *hRapResonance = new TH1F("hRapResonance"," Resonance Rapidity",50,-4.5,-2);
168 TH1F *hPtResonance = new TH1F("hPtResonance", "Resonance Pt (GeV/c)", 100, 0., 20.);
169 TH2F *hThetaPhiPlus = new TH2F("hThetaPhiPlus", "Theta vs Phi +", 760, -190., 190., 400, 160., 180.);
170 TH2F *hThetaPhiMinus = new TH2F("hThetaPhiMinus", "Theta vs Phi -", 760, -190., 190., 400, 160., 180.);
53399039 171
d949b15e 172 TNtuple *ESDtuple = new TNtuple("ESDtuple","Reconstructed Mu+Mu- pairs and Upsilon","ev:tw:pt:y:theta:minv:pt1:y1:theta1:q1:trig1:pt2:y2:theta2:q2:trig2");
173 TNtuple *ESDtupleBck = new TNtuple("ESDtupleBck","Reconstructed Mu+Mu- pairs for Background","ev:pt:y:theta:minv:pt1:y1:theta1:pt2:y2:theta2");
174
175
53399039 176 // Variables
d949b15e 177 Int_t EventInMass = 0;
53399039 178 Int_t EventInMassMatch = 0;
179 Int_t NbTrigger = 0;
180 Int_t ptTrig = 0;
d949b15e 181
cfc3191e 182 Double_t fXVertex=0;
183 Double_t fYVertex=0;
184 Double_t fZVertex=0;
690d2205 185 Double_t errXVtx=0;
186 Double_t errYVtx=0;
cfc3191e 187
d949b15e 188 Double_t fPxRec1, fPyRec1, fPzRec1, fE1;
189 Double_t fPxRec2, fPyRec2, fPzRec2, fE2;
190 Int_t fCharge1, fCharge2;
191
53399039 192 Int_t ntrackhits, nevents;
193 Int_t nprocessedevents = 0 ;
d949b15e 194 Double_t fitfmin;
195
196 TLorentzVector fV1, fV2, fVtot;
197
8cde4af5 198 // Import TGeo geometry (needed by AliMUONTrackExtrap::ExtrapToVertex)
199 if (!gGeoManager) {
200 TGeoManager::Import(geoFilename);
201 if (!gGeoManager) {
202 Error("MUONmass_ESD", "getting geometry from file %s failed", filename);
203 return kFALSE;
204 }
205 }
206
3f6289e9 207 // set mag field
208 // waiting for mag field in CDB
209 printf("Loading field map...\n");
b97b210c 210 AliMagFMaps* field = new AliMagFMaps("Maps","Maps", 1, 1., 10., AliMagFMaps::k5kG);
3f6289e9 211 AliTracker::SetFieldMap(field, kFALSE);
d949b15e 212
213 // open run loader and load gAlice, kinematics and header
214 AliRunLoader* runLoader = AliRunLoader::Open(filename);
215 if (!runLoader) {
216 Error("MUONefficiency", "getting run loader from file %s failed", filename);
217 return kFALSE;
218 }
219
220 runLoader->LoadgAlice();
221 gAlice = runLoader->GetAliRun();
222 if (!gAlice) {
223 Error("MUONefficiency", "no galice object found");
224 return kFALSE;
225 }
226
227 // open the ESD file
228 TFile* esdFile = TFile::Open(esdFileName);
229 if (!esdFile || !esdFile->IsOpen()) {
230 Error("MUONefficiency", "opening ESD file %s failed", esdFileName);
231 return kFALSE;
232 }
233
1c2bdf00 234 AliESDEvent* esd = new AliESDEvent();
d949b15e 235 TTree* tree = (TTree*) esdFile->Get("esdTree");
236 if (!tree) {
237 Error("CheckESD", "no ESD tree found");
238 return kFALSE;
db3b303f 239 }
240 esd->ReadFromTree(tree);
d949b15e 241
242 runLoader->LoadHeader();
5f72cf5b 243 Int_t runNumber = runLoader->GetHeader()->GetRun();
244 AliCDBManager::Instance()->SetRun(runNumber);
245
d949b15e 246 nevents = runLoader->GetNumberOfEvents();
cfc3191e 247 AliMUONTrackParam trackParam;
248
d949b15e 249 // to access the particle Stack
250 runLoader->LoadKinematics("READ");
251
53399039 252 Int_t numberOfGeneratedResonances = 0 ;
253
d949b15e 254 TParticle *particle;
53399039 255
d949b15e 256 Int_t track1Trigger = 0 ;
257 Float_t track1TriggerChi2 = 0 ;
d949b15e 258 Int_t track2Trigger = 0 ;
259 Float_t track2TriggerChi2 = 0 ;
260
261
262 // Loop over events
263 for (Int_t iEvent = FirstEvent; iEvent <= TMath::Min(LastEvent, nevents - 1); iEvent++) { // Start event loop
264
265 if (iEvent%1000 == 0 )
266 printf("\n Nb of events analysed: %d \n",iEvent);
267
268 // get current event
269 runLoader->GetEvent(iEvent);
53399039 270 nprocessedevents++;
271
d949b15e 272 // get the stack and fill the kine tree
273 AliStack *theStack = runLoader->Stack();
274 if (PRINTLEVEL > 0) theStack->DumpPStack ();
275
276 Int_t nparticles = (Int_t)runLoader->TreeK()->GetEntries();
277 Int_t nprimarypart = theStack->GetNprimary();
278 Int_t ntracks = theStack->GetNtrack();
53399039 279
d949b15e 280 if (PRINTLEVEL || (iEvent%100==0)) printf("\n >>> Event %d \n",iEvent);
cfc3191e 281 if (PRINTLEVEL) cout << nprimarypart << " Particles generated (total is " << ntracks << ")"<< endl ;
d949b15e 282
283 for(Int_t iparticle=0; iparticle<nparticles; iparticle++) { // Start loop over particles
284 particle = theStack->Particle(iparticle);
285
286 Int_t muId = particle->GetPdgCode();
287 Int_t muM = particle->GetFirstMother();
288 Int_t muGM = 0;
289 Float_t muP = particle->P();
290 Float_t muPt = TMath::Sqrt(particle->Px()*particle->Px()+particle->Py()*particle->Py());
291 Float_t muY = 0.5*TMath::Log((particle->Energy()+particle->Pz()+1.e-13)/(particle->Energy()-particle->Pz()+1.e-13));
292 if (muM >= 0) {
d949b15e 293 TParticle *theMum = theStack->Particle(muM);
294 muM = theMum->GetPdgCode();
d949b15e 295 muGM = theMum->GetFirstMother() ;
296 if (muGM >= 0){
297 TParticle *grandMa = theStack->Particle(muGM);
298 muGM = grandMa->GetPdgCode();
299 }
300 else muGM=0;
301 }
302 else muM=0;
53399039 303
304 if (muId==ResType) numberOfGeneratedResonances++;
305
306
d949b15e 307 Float_t muT = particle->Theta()*180/TMath::Pi();
308 Float_t muE = particle->Eta();
309
310 Float_t muVx = particle->Vx();
311 Float_t muVy = particle->Vy();
312 Float_t muVz = particle->Vz();
313
314 // If a write error occurs, the number of bytes returned is -1.
315 // If no data are written, because e.g. the branch is disabled,
316 // the number of bytes returned is 0.
317 Int_t errCode = Ktuple->Fill(iEvent,nparticles,muId,muM,muGM,muP,muPt,muY,muT,muE,muVx,muVy,muVz);
318 if (PRINTLEVEL || errCode < 1) printf("iEvent %d,nparticles %d,muId %d,muM %d,muGM %d,muP %.2f,muPt %.2f,muY %.2f,muT %.2f,muE %.2f,muVx %.2f,muVy %.2f,muVz %.2f \n", iEvent,nparticles,muId,muM,muGM,muP,muPt,muY,muT,muE,muVx,muVy,muVz);
319
320 } // End loop over particles
321
322
323
324 // get the event summary data
325 tree->GetEvent(iEvent);
326 if (!esd) {
327 Error("CheckESD", "no ESD object found for event %d", iEvent);
328 return kFALSE;
329 }
cfc3191e 330
331 // get the SPD reconstructed vertex (vertexer) and fill the histogram
43939bd8 332 AliESDVertex* Vertex = (AliESDVertex*) esd->GetVertex();
333 if (Vertex->GetNContributors()) {
cfc3191e 334 fZVertex = Vertex->GetZv();
335 fYVertex = Vertex->GetYv();
336 fXVertex = Vertex->GetXv();
690d2205 337 errXVtx = Vertex->GetXRes();
338 errYVtx = Vertex->GetYRes();
cfc3191e 339 }
340 hPrimaryVertex->Fill(fZVertex);
341
f57d136a 342 Int_t triggerWord = esd->GetTriggerMask();
d949b15e 343 Int_t nTracks = (Int_t)esd->GetNumberOfMuonTracks() ;
344
345 if (PRINTLEVEL > 0){
346 printf("\n Nb of events analysed: %d \n",iEvent);
347 cout << " number of tracks: " << nTracks <<endl;
348 }
349
37827b29 350 // set the magnetic field for track extrapolations
351 AliMUONTrackExtrap::SetField(AliTracker::GetFieldMap());
d949b15e 352 // loop over all reconstructed tracks (also first track of combination)
353 for (Int_t iTrack = 0; iTrack < nTracks; iTrack++) {
354
8cde4af5 355 AliESDMuonTrack* muonTrack = new AliESDMuonTrack(*(esd->GetMuonTrack(iTrack)));
d949b15e 356
8cde4af5 357 // extrapolate to vertex if required and available
358 if (ExtrapToVertex > 0 && Vertex->GetNContributors()) {
22ccc301 359 trackParam.GetParamFromUncorrected(*muonTrack);
690d2205 360 AliMUONTrackExtrap::ExtrapToVertex(&trackParam, fXVertex, fYVertex, fZVertex, errXVtx, errYVtx);
8cde4af5 361 trackParam.SetParamFor(*muonTrack); // put the new parameters in this copy of AliESDMuonTrack
362 } else if ((ExtrapToVertex > 0 && !Vertex->GetNContributors()) || ExtrapToVertex == 0){
22ccc301 363 trackParam.GetParamFromUncorrected(*muonTrack);
690d2205 364 AliMUONTrackExtrap::ExtrapToVertex(&trackParam, 0., 0., 0., 0., 0.);
8cde4af5 365 trackParam.SetParamFor(*muonTrack); // put the new parameters in this copy of AliESDMuonTrack
d949b15e 366 }
367
368 // Trigger
369 if (PRINTLEVEL > 5) cout << "MatchTrigger " << muonTrack->GetMatchTrigger() << " and Chi2 of matching tracks " << track1TriggerChi2 << endl ;
370 track1Trigger = muonTrack->GetMatchTrigger();
371 if (track1Trigger)
372 track1TriggerChi2 = muonTrack->GetChi2MatchTrigger();
373 else
374 track1TriggerChi2 = 0. ;
375
d949b15e 376 fCharge1 = Int_t(TMath::Sign(1.,muonTrack->GetInverseBendingMomentum()));
377
22ccc301 378 muonTrack->LorentzP(fV1);
d949b15e 379
380 ntrackhits = muonTrack->GetNHit();
381 fitfmin = muonTrack->GetChi2();
382
383 // transverse momentum
384 Float_t pt1 = fV1.Pt();
385
386 // total momentum
387 Float_t p1 = fV1.P();
388
389 // Rapidity
390 Float_t rapMuon1 = fV1.Rapidity();
391
392 // chi2 per d.o.f.
393
394 Float_t ch1 = fitfmin / (2.0 * ntrackhits - 5);
22ccc301 395 if (PRINTLEVEL > 5 ) printf(" px %f py %f pz %f pt %f NHits %d Norm.chi2 %f charge %d\n",fV1.Px(), fV1.Py(), fV1.Pz(), pt1, ntrackhits, ch1, fCharge1);
d949b15e 396
397
398 if ((ch1 < Chi2Cut) && (pt1 > PtCutMin) && (pt1 < PtCutMax)) { // condition for good track (Chi2Cut and PtCut)
399 if (PRINTLEVEL > 8) cout << "inside pt and chi2 cuts " << endl ;
400
401 // fill histos hPtMuon and hChi2PerDof
402 hPtMuon->Fill(pt1);
403 hPMuon->Fill(p1);
404 hChi2PerDof->Fill(ch1);
405 hRapMuon->Fill(rapMuon1);
406
407 if (fCharge1 > 0) {
408 hPtMuonPlus->Fill(pt1);
22ccc301 409 hThetaPhiPlus->Fill(fV1.Phi()*180./TMath::Pi(),fV1.Theta()*180./TMath::Pi());
d949b15e 410 } else {
411 hPtMuonMinus->Fill(pt1);
22ccc301 412 hThetaPhiMinus->Fill(fV1.Phi()*180./TMath::Pi(),fV1.Theta()*180./TMath::Pi());
d949b15e 413 }
414
415 // loop over second track of combination
416 for (Int_t iTrack2 = iTrack + 1; iTrack2 < nTracks; iTrack2++) {
417
8cde4af5 418 AliESDMuonTrack* muonTrack2 = new AliESDMuonTrack(*(esd->GetMuonTrack(iTrack2)));
cfc3191e 419
8cde4af5 420 // extrapolate to vertex if required and available
421 if (ExtrapToVertex > 0 && Vertex->GetNContributors()) {
22ccc301 422 trackParam.GetParamFromUncorrected(*muonTrack2);
690d2205 423 AliMUONTrackExtrap::ExtrapToVertex(&trackParam, fXVertex, fYVertex, fZVertex, errXVtx, errYVtx);
8cde4af5 424 trackParam.SetParamFor(*muonTrack2); // put the new parameters in this copy of AliESDMuonTrack
425 } else if ((ExtrapToVertex > 0 && !Vertex->GetNContributors()) || ExtrapToVertex == 0){
22ccc301 426 trackParam.GetParamFromUncorrected(*muonTrack2);
690d2205 427 AliMUONTrackExtrap::ExtrapToVertex(&trackParam, 0., 0., 0., 0., 0.);
8cde4af5 428 trackParam.SetParamFor(*muonTrack2); // put the new parameters in this copy of AliESDMuonTrack
d949b15e 429 }
430
8cde4af5 431 track2Trigger = muonTrack2->GetMatchTrigger();
d949b15e 432 if (track2Trigger)
8cde4af5 433 track2TriggerChi2 = muonTrack2->GetChi2MatchTrigger();
d949b15e 434 else
435 track2TriggerChi2 = 0. ;
436
8cde4af5 437 fCharge2 = Int_t(TMath::Sign(1.,muonTrack2->GetInverseBendingMomentum()));
d949b15e 438
22ccc301 439 muonTrack2->LorentzP(fV2);
d949b15e 440
8cde4af5 441 ntrackhits = muonTrack2->GetNHit();
442 fitfmin = muonTrack2->GetChi2();
d949b15e 443
444 // transverse momentum
445 Float_t pt2 = fV2.Pt();
446
447 // chi2 per d.o.f.
448 Float_t ch2 = fitfmin / (2.0 * ntrackhits - 5);
449
d949b15e 450
cfc3191e 451 // condition for good track (Chi2Cut and PtCut)
452 if ((ch2 < Chi2Cut) && (pt2 > PtCutMin) && (pt2 < PtCutMax)) {
d949b15e 453
cfc3191e 454 // condition for opposite charges
455 if ((fCharge1 * fCharge2) == -1) {
456
457 if (PRINTLEVEL > 8) cout << "---------> Now filling the Ntuple " << endl ;
458
459 // invariant mass
460 fVtot = fV1 + fV2;
461 Float_t invMass = fVtot.M();
462
463 if (fCharge1 < 0){ //mu_minus is index 1 in the ntuple
464 Float_t ESDFill[16] = {iEvent,triggerWord,fVtot.Pt(),fVtot.Rapidity(),fVtot.Theta()/TMath::Pi()*180,invMass,fV1.Pt(),fV1.Rapidity(),fV1.Theta()/TMath::Pi()*180,fCharge1,track1TriggerChi2,fV2.Pt(),fV2.Rapidity(),fV2.Theta()/TMath::Pi()*180,fCharge2,track2TriggerChi2};
465 ESDtuple->Fill(ESDFill);
466 }
467 else{
468 Float_t ESDFill[16] = {iEvent,triggerWord,fVtot.Pt(),fVtot.Rapidity(),fVtot.Theta()/TMath::Pi()*180,invMass,fV2.Pt(),fV2.Rapidity(),fV2.Theta()/TMath::Pi()*180,fCharge2,track2TriggerChi2,fV1.Pt(),fV1.Rapidity(),fV1.Theta()/TMath::Pi()*180,fCharge1,track1TriggerChi2};
469 ESDtuple->Fill(ESDFill);
470 }
471
472 // fill histos hInvMassAll and hInvMassRes
473 hInvMassAll->Fill(invMass);
474 hInvMassRes->Fill(invMass);
475 hInvMassAll_vs_Pt->Fill(invMass,fVtot.Pt());
476
477 //trigger info
478 if (ResType == 553)
5c83829b 479 ptTrig = 0x08;// mask for Hpt unlike sign pair
cfc3191e 480 else if (ResType == 443)
5c83829b 481 ptTrig = 0x04;// mask for Lpt unlike sign pair
cfc3191e 482
483
484 if (esd->GetTriggerMask() & ptTrig) NbTrigger++;
485
486 if (invMass > invMassMinInPeak && invMass < invMassMaxInPeak) {
487 EventInMass++;
488 hRapResonance->Fill(fVtot.Rapidity());
489 hPtResonance->Fill(fVtot.Pt());
53399039 490
cfc3191e 491 // match with trigger
8b4a9b89 492 if (muonTrack2->GetMatchTrigger()>=0 && (esd->GetTriggerMask() & ptTrig)) EventInMassMatch++;
53399039 493
cfc3191e 494 }
495
496 } // if (fCharge1 * fCharge2) == -1)
497 } // if ((ch2 < Chi2Cut) && (pt2 > PtCutMin) && (pt2 < PtCutMax))
8cde4af5 498 delete muonTrack2;
d949b15e 499 } // for (Int_t iTrack2 = iTrack + 1; iTrack2 < iTrack; iTrack2++)
500 } // if (ch1 < Chi2Cut) && (pt1 > PtCutMin)&& (pt1 < PtCutMax) )
8cde4af5 501 delete muonTrack;
d949b15e 502 } // for (Int_t iTrack = 0; iTrack < nrectracks; iTrack++)
503
504 hNumberOfTrack->Fill(nTracks);
505 // esdFile->Delete();
506
507 } // End of event loop
508
509
510 // Loop over events for bg event
511
512 Double_t thetaPlus, phiPlus;
513 Double_t thetaMinus, phiMinus;
514 Float_t PtMinus, PtPlus;
515
516 for (Int_t iEvent = 0; iEvent < hInvMassAll->Integral(); iEvent++) { // Loop over events for bg event
53399039 517 // according to Christian a 3d phi-theta-pt random pick would take better care
d949b15e 518 // of all correlations
519
520 hThetaPhiPlus->GetRandom2(phiPlus, thetaPlus);
521 hThetaPhiMinus->GetRandom2(phiMinus,thetaMinus);
522 PtPlus = hPtMuonPlus->GetRandom();
523 PtMinus = hPtMuonMinus->GetRandom();
524
525 fPxRec1 = PtPlus * TMath::Cos(TMath::Pi()/180.*phiPlus);
526 fPyRec1 = PtPlus * TMath::Sin(TMath::Pi()/180.*phiPlus);
527 fPzRec1 = PtPlus / TMath::Tan(TMath::Pi()/180.*thetaPlus);
528
53399039 529 fE1 = TMath::Sqrt(MUON_MASS * MUON_MASS + fPxRec1 * fPxRec1 + fPyRec1 * fPyRec1 + fPzRec1 * fPzRec1);
d949b15e 530 fV1.SetPxPyPzE(fPxRec1, fPyRec1, fPzRec1, fE1);
531
532 fPxRec2 = PtMinus * TMath::Cos(TMath::Pi()/180.*phiMinus);
533 fPyRec2 = PtMinus * TMath::Sin(TMath::Pi()/180.*phiMinus);
534 fPzRec2 = PtMinus / TMath::Tan(TMath::Pi()/180.*thetaMinus);
535
53399039 536 fE2 = TMath::Sqrt(MUON_MASS * MUON_MASS + fPxRec2 * fPxRec2 + fPyRec2 * fPyRec2 + fPzRec2 * fPzRec2);
d949b15e 537 fV2.SetPxPyPzE(fPxRec2, fPyRec2, fPzRec2, fE2);
538
539 // invariant mass
540 fVtot = fV1 + fV2;
541
542 // fill histos hInvMassAll and hInvMassRes
543 hInvMassBg->Fill(fVtot.M());
544 hInvMassBgk_vs_Pt->Fill( fVtot.M(), fVtot.Pt() );
545
546 // Ntuple for background... more convenient
547 ESDtupleBck->Fill(iEvent,fVtot.Pt(),fVtot.Rapidity(),fVtot.Theta()/TMath::Pi()*180,fVtot.M(),fV2.Pt(),fV2.Rapidity(),fV2.Theta()/TMath::Pi()*180,fV1.Pt(),fV1.Rapidity(),fV1.Theta()/TMath::Pi()*180);
548
549 } // End loop over events for background
550
551
552 // File for histograms and histogram booking
553 TString outfilename = "MUONefficiency.root";
53399039 554 TFile *ntupleFile = new TFile(outfilename.Data(), "RECREATE");
d949b15e 555
556 Ktuple->Write();
557 ESDtuple->Write();
53399039 558 ESDtupleBck->Write();
559
560 ntupleFile->Close();
d949b15e 561
53399039 562 TFile *histoFile = new TFile("MUONhistos.root", "RECREATE");
cfc3191e 563 hPrimaryVertex->Write();
53399039 564 hPtMuon->Write();
565 hPtMuonPlus->Write();
566 hPtMuonMinus->Write();
567 hPMuon->Write();
568 hChi2PerDof->Write();
569 hInvMassAll->Write();
570 hInvMassBg->Write();
571 hInvMassAll_vs_Pt ->Write();
572 hInvMassBgk_vs_Pt->Write();
573 hInvMassRes->Write();
574 hNumberOfTrack->Write();
575 hRapMuon ->Write();
576 hRapResonance ->Write();
577 hPtResonance ->Write();
578 hThetaPhiPlus ->Write();
579 hThetaPhiMinus ->Write();
d949b15e 580 histoFile->Close();
53399039 581
582 cout << "" << endl ;
583 cout << "*************************************************" << endl;
584
585 cout << "MUONefficiency : " << nprocessedevents << " events processed" << endl;
586 if (ResType==443)
587 cout << "Number of generated J/Psi (443) : " << numberOfGeneratedResonances << endl ;
588 if (ResType==553)
589 cout << "Number of generated Upsilon (553) :" << numberOfGeneratedResonances << endl ;
590 cout << "Chi2Cut for muon tracks = " << Chi2Cut << endl;
591 cout << "PtCutMin for muon tracks = " << PtCutMin << endl;
592 cout << "PtCutMax for muon tracks = " << PtCutMax << endl;
593 cout << "Entries (unlike sign dimuons) in the mass range ["<<invMassMinInPeak<<";"<<invMassMaxInPeak<<"] : " << EventInMass <<endl;
594 if (ptTrig==0x800) cout << "Unlike Pair - All Pt" ;
595 if (ptTrig==0x400) cout << "Unlike Pair - High Pt" ;
596 if (ptTrig==0x200) cout << "Unlike Pair - Low Pt" ;
597 cout << " triggers : " << NbTrigger << endl;
d949b15e 598
53399039 599 cout << "Entries in the mass range with matching between reconstructed tracks and trigger tracks " << EventInMassMatch << endl;
600
d949b15e 601
602 return kTRUE;
603}