Class AliMUONCDB:
[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
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
a99c3449 36#include "AliMUONCDB.h"
5f72cf5b 37#include "AliMUONTrackParam.h"
38#include "AliMUONTrackExtrap.h"
103e6575 39#include "AliMUONESDInterface.h"
5f72cf5b 40
41// STEER includes
42#include "AliRun.h"
43#include "AliRunLoader.h"
44#include "AliHeader.h"
45#include "AliLoader.h"
46#include "AliStack.h"
5f72cf5b 47#include "AliESDEvent.h"
48#include "AliESDVertex.h"
5f72cf5b 49#include "AliCDBManager.h"
103e6575 50#include "AliESDMuonTrack.h"
5f72cf5b 51
d949b15e 52// ROOT includes
53#include "TTree.h"
53399039 54#include "TNtuple.h"
d949b15e 55#include "TLorentzVector.h"
56#include "TFile.h"
57#include "TH1.h"
58#include "TH2.h"
59#include "TParticle.h"
d949b15e 60#include "TString.h"
61#include <Riostream.h>
8cde4af5 62#include <TGeoManager.h>
da79ec88 63#include <TROOT.h>
9bf6860b 64#include <TF1.h>
a99c3449 65#include <TMath.h>
d949b15e 66
d949b15e 67#endif
68
a99c3449 69Bool_t MUONefficiency(char* filename = "generated/galice.root", char* esdFileName = "AliESDs.root",
70 char* geoFilename = "geometry.root", char* ocdbPath = "local://$ALICE_ROOT/OCDB",
71 Int_t ExtrapToVertex = -1, Int_t ResType = 553, Int_t FirstEvent = 0, Int_t LastEvent = 1000000 )
e54bf126 72{
73/// \param ExtrapToVertex (default -1)
74/// - <0: no extrapolation;
75/// - =0: extrapolation to (0,0,0);
76/// - >0: extrapolation to ESDVertex if available, else to (0,0,0)
77/// \param ResType 553 for Upsilon, 443 for J/Psi (default 553)
78/// \param FirstEvent (default 0)
79/// \param LastEvent (default 1.e6)
80/// \param Chi2Cut to keep only tracks with chi2 per d.o.f. < Chi2Cut (default 100)
81
82
83 // MUONefficiency starts
d949b15e 84
53399039 85 Double_t MUON_MASS = 0.105658369;
86 Double_t UPSILON_MASS = 9.4603 ;
87 Double_t JPSI_MASS = 3.097;
88
89 // Upper and lower bound for counting entries in the mass peak
90 // +/- 300 MeV/c^2 in this case.
91 Float_t countingRange = 0.300 ;
92
93 Float_t massResonance = 5.;
94 Float_t invMassMinInPeak = 0. ;
95 Float_t invMassMaxInPeak = 0. ;
96
97 Float_t nBinsPerGev = 40 ;
98 Float_t invMassMin = 0; Float_t invMassMax = 20;
99 Float_t ptMinResonance = 0 ; Float_t ptMaxResonance = 20 ; Int_t ptBinsResonance = 100;
100
101 if (ResType==443) {
102 massResonance = JPSI_MASS ;
103 invMassMinInPeak = JPSI_MASS - countingRange ; invMassMaxInPeak = JPSI_MASS + countingRange ;
104 //limits for histograms
105 invMassMin = 0 ; invMassMax = 6.;
106 ptMinResonance = 0 ; ptMaxResonance = 20 ; ptBinsResonance = 100;
107 }
108 if (ResType==553) {
109 massResonance = UPSILON_MASS;
110 invMassMinInPeak = UPSILON_MASS - countingRange ; invMassMaxInPeak = UPSILON_MASS + countingRange;
111 //limits for histograms
112 invMassMin = 0 ; invMassMax = 12.;
113 ptMinResonance = 0 ; ptMaxResonance = 20 ; ptBinsResonance = 100;
114 }
115
116 // Single Tracks muon cuts
117 Float_t Chi2Cut = 100.;
118 Float_t PtCutMin = 0. ;
119 Float_t PtCutMax = 10000. ;
120
121
122 // Limits for histograms
123 Float_t ptMinMuon = 0. ; Float_t ptMaxMuon = 20.; Int_t ptBinsMuon = 100 ;
124 Float_t pMinMuon = 0. ; Float_t pMaxMuon = 200.; Int_t pBinsMuon = 100 ;
d949b15e 125
53399039 126
d949b15e 127 //Reset ROOT and connect tree file
128 gROOT->Reset();
129
130 // Printing Level
131 Int_t PRINTLEVEL = 0 ;
d949b15e 132
133 //for kinematic, i.e. reference tracks
134 TNtuple *Ktuple = new TNtuple("Ktuple","Kinematics NTuple","ev:npart:id:idmo:idgdmo:p:pt:y:theta:pseudorap:vx:vy:vz");
135
53399039 136 //for reconstruction
137 TH1F *hPtMuon = new TH1F("hPtMuon", "Muon Pt (GeV/c)", ptBinsMuon, ptMinMuon, ptMaxMuon);
138 TH1F *hPtMuonPlus = new TH1F("hPtMuonPlus", "Muon+ Pt (GeV/c)", ptBinsMuon, ptMinMuon, ptMaxMuon);
139 TH1F *hPtMuonMinus = new TH1F("hPtMuonMinus", "Muon- Pt (GeV/c)", ptBinsMuon, ptMinMuon, ptMaxMuon);
140 TH1F *hPMuon = new TH1F("hPMuon", "Muon P (GeV/c)", pBinsMuon, pMinMuon, pMaxMuon);
141
142 TH1F *hInvMassAll;
143 TH1F *hInvMassBg;
144 TH2F *hInvMassAll_vs_Pt;
145 TH2F *hInvMassBgk_vs_Pt;
d949b15e 146 TH1F *hInvMassRes;
d949b15e 147
53399039 148
149 hInvMassAll = new TH1F("hInvMassAll", "Mu+Mu- invariant mass (GeV/c2)", (Int_t) (nBinsPerGev*(invMassMax - invMassMin)), invMassMin, invMassMax);
150 hInvMassBg = new TH1F("hInvMassBg", "Mu+Mu- invariant mass BG(GeV/c2)", (Int_t) (nBinsPerGev*(invMassMax- invMassMin)), invMassMin, invMassMax);
151 hInvMassAll_vs_Pt = new TH2F("hInvMassAll_vs_Pt","hInvMassAll_vs_Pt",(Int_t) (nBinsPerGev*(invMassMax- invMassMin)), invMassMin, invMassMax,ptBinsResonance,ptMinResonance,ptMaxResonance);
152 hInvMassBgk_vs_Pt = new TH2F("hInvMassBgk_vs_Pt","hInvMassBgk_vs_Pt",(Int_t) (nBinsPerGev*(invMassMax- invMassMin)), invMassMin, invMassMax,ptBinsResonance,ptMinResonance,ptMaxResonance);
153
154 hInvMassRes = new TH1F("hInvMassRes", "Mu+Mu- invariant mass (GeV/c2) around Resonance",(Int_t) (nBinsPerGev*3*countingRange*2),massResonance-3*countingRange,massResonance+3*countingRange);
155
cfc3191e 156 TH1F *hPrimaryVertex = new TH1F("hPrimaryVertex","SPD reconstructed Z vertex",150,-15,15);
53399039 157 TH1F *hChi2PerDof = new TH1F("hChi2PerDof", "Muon track chi2/d.o.f.", 100, 0., 20.);
d949b15e 158 TH1F *hNumberOfTrack = new TH1F("hNumberOfTrack","nb of track /evt ",20,-0.5,19.5);
159 TH1F *hRapMuon = new TH1F("hRapMuon"," Muon Rapidity",50,-4.5,-2);
160 TH1F *hRapResonance = new TH1F("hRapResonance"," Resonance Rapidity",50,-4.5,-2);
161 TH1F *hPtResonance = new TH1F("hPtResonance", "Resonance Pt (GeV/c)", 100, 0., 20.);
162 TH2F *hThetaPhiPlus = new TH2F("hThetaPhiPlus", "Theta vs Phi +", 760, -190., 190., 400, 160., 180.);
163 TH2F *hThetaPhiMinus = new TH2F("hThetaPhiMinus", "Theta vs Phi -", 760, -190., 190., 400, 160., 180.);
53399039 164
d949b15e 165 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");
166 TNtuple *ESDtupleBck = new TNtuple("ESDtupleBck","Reconstructed Mu+Mu- pairs for Background","ev:pt:y:theta:minv:pt1:y1:theta1:pt2:y2:theta2");
167
168
53399039 169 // Variables
d949b15e 170 Int_t EventInMass = 0;
53399039 171 Int_t EventInMassMatch = 0;
172 Int_t NbTrigger = 0;
173 Int_t ptTrig = 0;
d949b15e 174
cfc3191e 175 Double_t fXVertex=0;
176 Double_t fYVertex=0;
177 Double_t fZVertex=0;
690d2205 178 Double_t errXVtx=0;
179 Double_t errYVtx=0;
cfc3191e 180
d949b15e 181 Double_t fPxRec1, fPyRec1, fPzRec1, fE1;
182 Double_t fPxRec2, fPyRec2, fPzRec2, fE2;
183 Int_t fCharge1, fCharge2;
184
53399039 185 Int_t ntrackhits, nevents;
186 Int_t nprocessedevents = 0 ;
d949b15e 187 Double_t fitfmin;
188
189 TLorentzVector fV1, fV2, fVtot;
190
8cde4af5 191 // Import TGeo geometry (needed by AliMUONTrackExtrap::ExtrapToVertex)
192 if (!gGeoManager) {
193 TGeoManager::Import(geoFilename);
194 if (!gGeoManager) {
a99c3449 195 Error("MUONefficiency", "getting geometry from file %s failed", geoFilename);
8cde4af5 196 return kFALSE;
197 }
198 }
199
a99c3449 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;
f7a1cc68 205 }
a99c3449 206
207 AliESDEvent* esd = new AliESDEvent();
208 TTree* tree = (TTree*) esdFile->Get("esdTree");
209 if (!tree) {
210 Error("MUONefficiency", "no ESD tree found");
211 return kFALSE;
212 }
213 esd->ReadFromTree(tree);
214
215 // get run number
216 if (tree->GetEvent(0) <= 0) {
217 Error("MUONefficiency", "no ESD object found for event 0");
218 return kFALSE;
219 }
220 Int_t runNumber = esd->GetRunNumber();
221
222 // load necessary data from OCDB
223 AliCDBManager::Instance()->SetDefaultStorage(ocdbPath);
224 AliCDBManager::Instance()->SetRun(runNumber);
225 if (!AliMUONCDB::LoadField()) return kFALSE;
226
f7a1cc68 227 // set the magnetic field for track extrapolations
228 AliMUONTrackExtrap::SetField();
229
d949b15e 230 // open run loader and load gAlice, kinematics and header
231 AliRunLoader* runLoader = AliRunLoader::Open(filename);
232 if (!runLoader) {
233 Error("MUONefficiency", "getting run loader from file %s failed", filename);
234 return kFALSE;
235 }
236
237 runLoader->LoadgAlice();
238 gAlice = runLoader->GetAliRun();
239 if (!gAlice) {
240 Error("MUONefficiency", "no galice object found");
241 return kFALSE;
242 }
d949b15e 243
244 runLoader->LoadHeader();
a99c3449 245 if (runNumber != runLoader->GetHeader()->GetRun()) {
246 Error("MUONefficiency", "mismatch between run number from ESD and from runLoader");
247 return kFALSE;
248 }
5f72cf5b 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
a99c3449 329 if (tree->GetEvent(iEvent) <= 0) {
d949b15e 330 Error("CheckESD", "no ESD object found for event %d", iEvent);
331 return kFALSE;
332 }
cfc3191e 333
334 // get the SPD reconstructed vertex (vertexer) and fill the histogram
43939bd8 335 AliESDVertex* Vertex = (AliESDVertex*) esd->GetVertex();
336 if (Vertex->GetNContributors()) {
cfc3191e 337 fZVertex = Vertex->GetZv();
338 fYVertex = Vertex->GetYv();
339 fXVertex = Vertex->GetXv();
690d2205 340 errXVtx = Vertex->GetXRes();
341 errYVtx = Vertex->GetYRes();
cfc3191e 342 }
343 hPrimaryVertex->Fill(fZVertex);
344
f57d136a 345 Int_t triggerWord = esd->GetTriggerMask();
d949b15e 346 Int_t nTracks = (Int_t)esd->GetNumberOfMuonTracks() ;
347
348 if (PRINTLEVEL > 0){
349 printf("\n Nb of events analysed: %d \n",iEvent);
350 cout << " number of tracks: " << nTracks <<endl;
351 }
352
353 // loop over all reconstructed tracks (also first track of combination)
354 for (Int_t iTrack = 0; iTrack < nTracks; iTrack++) {
355
b1fea02e 356 // skip ghosts
357 if (!esd->GetMuonTrack(iTrack)->ContainTrackerData()) continue;
358
8cde4af5 359 AliESDMuonTrack* muonTrack = new AliESDMuonTrack(*(esd->GetMuonTrack(iTrack)));
d949b15e 360
8cde4af5 361 // extrapolate to vertex if required and available
362 if (ExtrapToVertex > 0 && Vertex->GetNContributors()) {
103e6575 363 AliMUONESDInterface::GetParamAtFirstCluster(*muonTrack, trackParam);
690d2205 364 AliMUONTrackExtrap::ExtrapToVertex(&trackParam, fXVertex, fYVertex, fZVertex, errXVtx, errYVtx);
103e6575 365 AliMUONESDInterface::SetParamAtVertex(trackParam, *muonTrack); // put the new parameters in this copy of AliESDMuonTrack
8cde4af5 366 } else if ((ExtrapToVertex > 0 && !Vertex->GetNContributors()) || ExtrapToVertex == 0){
103e6575 367 AliMUONESDInterface::GetParamAtFirstCluster(*muonTrack, trackParam);
690d2205 368 AliMUONTrackExtrap::ExtrapToVertex(&trackParam, 0., 0., 0., 0., 0.);
103e6575 369 AliMUONESDInterface::SetParamAtVertex(trackParam, *muonTrack); // put the new parameters in this copy of AliESDMuonTrack
d949b15e 370 }
371
372 // Trigger
373 if (PRINTLEVEL > 5) cout << "MatchTrigger " << muonTrack->GetMatchTrigger() << " and Chi2 of matching tracks " << track1TriggerChi2 << endl ;
374 track1Trigger = muonTrack->GetMatchTrigger();
375 if (track1Trigger)
376 track1TriggerChi2 = muonTrack->GetChi2MatchTrigger();
377 else
378 track1TriggerChi2 = 0. ;
379
d949b15e 380 fCharge1 = Int_t(TMath::Sign(1.,muonTrack->GetInverseBendingMomentum()));
381
22ccc301 382 muonTrack->LorentzP(fV1);
d949b15e 383
384 ntrackhits = muonTrack->GetNHit();
385 fitfmin = muonTrack->GetChi2();
386
387 // transverse momentum
388 Float_t pt1 = fV1.Pt();
389
390 // total momentum
391 Float_t p1 = fV1.P();
392
393 // Rapidity
394 Float_t rapMuon1 = fV1.Rapidity();
395
396 // chi2 per d.o.f.
397
398 Float_t ch1 = fitfmin / (2.0 * ntrackhits - 5);
22ccc301 399 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 400
401
402 if ((ch1 < Chi2Cut) && (pt1 > PtCutMin) && (pt1 < PtCutMax)) { // condition for good track (Chi2Cut and PtCut)
403 if (PRINTLEVEL > 8) cout << "inside pt and chi2 cuts " << endl ;
404
405 // fill histos hPtMuon and hChi2PerDof
406 hPtMuon->Fill(pt1);
407 hPMuon->Fill(p1);
408 hChi2PerDof->Fill(ch1);
409 hRapMuon->Fill(rapMuon1);
410
411 if (fCharge1 > 0) {
412 hPtMuonPlus->Fill(pt1);
22ccc301 413 hThetaPhiPlus->Fill(fV1.Phi()*180./TMath::Pi(),fV1.Theta()*180./TMath::Pi());
d949b15e 414 } else {
415 hPtMuonMinus->Fill(pt1);
22ccc301 416 hThetaPhiMinus->Fill(fV1.Phi()*180./TMath::Pi(),fV1.Theta()*180./TMath::Pi());
d949b15e 417 }
418
419 // loop over second track of combination
420 for (Int_t iTrack2 = iTrack + 1; iTrack2 < nTracks; iTrack2++) {
421
b1fea02e 422 // skip ghosts
423 if (!esd->GetMuonTrack(iTrack2)->ContainTrackerData()) continue;
424
8cde4af5 425 AliESDMuonTrack* muonTrack2 = new AliESDMuonTrack(*(esd->GetMuonTrack(iTrack2)));
cfc3191e 426
8cde4af5 427 // extrapolate to vertex if required and available
428 if (ExtrapToVertex > 0 && Vertex->GetNContributors()) {
103e6575 429 AliMUONESDInterface::GetParamAtFirstCluster(*muonTrack2, trackParam);
690d2205 430 AliMUONTrackExtrap::ExtrapToVertex(&trackParam, fXVertex, fYVertex, fZVertex, errXVtx, errYVtx);
103e6575 431 AliMUONESDInterface::SetParamAtVertex(trackParam, *muonTrack2); // put the new parameters in this copy of AliESDMuonTrack
8cde4af5 432 } else if ((ExtrapToVertex > 0 && !Vertex->GetNContributors()) || ExtrapToVertex == 0){
103e6575 433 AliMUONESDInterface::GetParamAtFirstCluster(*muonTrack2, trackParam);
690d2205 434 AliMUONTrackExtrap::ExtrapToVertex(&trackParam, 0., 0., 0., 0., 0.);
103e6575 435 AliMUONESDInterface::SetParamAtVertex(trackParam, *muonTrack2); // put the new parameters in this copy of AliESDMuonTrack
d949b15e 436 }
437
8cde4af5 438 track2Trigger = muonTrack2->GetMatchTrigger();
d949b15e 439 if (track2Trigger)
8cde4af5 440 track2TriggerChi2 = muonTrack2->GetChi2MatchTrigger();
d949b15e 441 else
442 track2TriggerChi2 = 0. ;
443
8cde4af5 444 fCharge2 = Int_t(TMath::Sign(1.,muonTrack2->GetInverseBendingMomentum()));
d949b15e 445
22ccc301 446 muonTrack2->LorentzP(fV2);
d949b15e 447
8cde4af5 448 ntrackhits = muonTrack2->GetNHit();
449 fitfmin = muonTrack2->GetChi2();
d949b15e 450
451 // transverse momentum
452 Float_t pt2 = fV2.Pt();
453
454 // chi2 per d.o.f.
455 Float_t ch2 = fitfmin / (2.0 * ntrackhits - 5);
456
d949b15e 457
cfc3191e 458 // condition for good track (Chi2Cut and PtCut)
459 if ((ch2 < Chi2Cut) && (pt2 > PtCutMin) && (pt2 < PtCutMax)) {
d949b15e 460
cfc3191e 461 // condition for opposite charges
462 if ((fCharge1 * fCharge2) == -1) {
463
464 if (PRINTLEVEL > 8) cout << "---------> Now filling the Ntuple " << endl ;
465
466 // invariant mass
467 fVtot = fV1 + fV2;
468 Float_t invMass = fVtot.M();
469
470 if (fCharge1 < 0){ //mu_minus is index 1 in the ntuple
471 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};
472 ESDtuple->Fill(ESDFill);
473 }
474 else{
475 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};
476 ESDtuple->Fill(ESDFill);
477 }
478
479 // fill histos hInvMassAll and hInvMassRes
480 hInvMassAll->Fill(invMass);
481 hInvMassRes->Fill(invMass);
482 hInvMassAll_vs_Pt->Fill(invMass,fVtot.Pt());
483
484 //trigger info
485 if (ResType == 553)
5c83829b 486 ptTrig = 0x08;// mask for Hpt unlike sign pair
cfc3191e 487 else if (ResType == 443)
5c83829b 488 ptTrig = 0x04;// mask for Lpt unlike sign pair
cfc3191e 489
490
491 if (esd->GetTriggerMask() & ptTrig) NbTrigger++;
492
493 if (invMass > invMassMinInPeak && invMass < invMassMaxInPeak) {
494 EventInMass++;
495 hRapResonance->Fill(fVtot.Rapidity());
496 hPtResonance->Fill(fVtot.Pt());
53399039 497
cfc3191e 498 // match with trigger
8b4a9b89 499 if (muonTrack2->GetMatchTrigger()>=0 && (esd->GetTriggerMask() & ptTrig)) EventInMassMatch++;
53399039 500
cfc3191e 501 }
502
503 } // if (fCharge1 * fCharge2) == -1)
504 } // if ((ch2 < Chi2Cut) && (pt2 > PtCutMin) && (pt2 < PtCutMax))
8cde4af5 505 delete muonTrack2;
d949b15e 506 } // for (Int_t iTrack2 = iTrack + 1; iTrack2 < iTrack; iTrack2++)
507 } // if (ch1 < Chi2Cut) && (pt1 > PtCutMin)&& (pt1 < PtCutMax) )
8cde4af5 508 delete muonTrack;
d949b15e 509 } // for (Int_t iTrack = 0; iTrack < nrectracks; iTrack++)
510
511 hNumberOfTrack->Fill(nTracks);
512 // esdFile->Delete();
513
514 } // End of event loop
515
516
517 // Loop over events for bg event
518
519 Double_t thetaPlus, phiPlus;
520 Double_t thetaMinus, phiMinus;
521 Float_t PtMinus, PtPlus;
522
523 for (Int_t iEvent = 0; iEvent < hInvMassAll->Integral(); iEvent++) { // Loop over events for bg event
53399039 524 // according to Christian a 3d phi-theta-pt random pick would take better care
d949b15e 525 // of all correlations
526
527 hThetaPhiPlus->GetRandom2(phiPlus, thetaPlus);
528 hThetaPhiMinus->GetRandom2(phiMinus,thetaMinus);
529 PtPlus = hPtMuonPlus->GetRandom();
530 PtMinus = hPtMuonMinus->GetRandom();
531
532 fPxRec1 = PtPlus * TMath::Cos(TMath::Pi()/180.*phiPlus);
533 fPyRec1 = PtPlus * TMath::Sin(TMath::Pi()/180.*phiPlus);
534 fPzRec1 = PtPlus / TMath::Tan(TMath::Pi()/180.*thetaPlus);
535
53399039 536 fE1 = TMath::Sqrt(MUON_MASS * MUON_MASS + fPxRec1 * fPxRec1 + fPyRec1 * fPyRec1 + fPzRec1 * fPzRec1);
d949b15e 537 fV1.SetPxPyPzE(fPxRec1, fPyRec1, fPzRec1, fE1);
538
539 fPxRec2 = PtMinus * TMath::Cos(TMath::Pi()/180.*phiMinus);
540 fPyRec2 = PtMinus * TMath::Sin(TMath::Pi()/180.*phiMinus);
541 fPzRec2 = PtMinus / TMath::Tan(TMath::Pi()/180.*thetaMinus);
542
53399039 543 fE2 = TMath::Sqrt(MUON_MASS * MUON_MASS + fPxRec2 * fPxRec2 + fPyRec2 * fPyRec2 + fPzRec2 * fPzRec2);
d949b15e 544 fV2.SetPxPyPzE(fPxRec2, fPyRec2, fPzRec2, fE2);
545
546 // invariant mass
547 fVtot = fV1 + fV2;
548
549 // fill histos hInvMassAll and hInvMassRes
550 hInvMassBg->Fill(fVtot.M());
551 hInvMassBgk_vs_Pt->Fill( fVtot.M(), fVtot.Pt() );
552
553 // Ntuple for background... more convenient
554 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);
555
556 } // End loop over events for background
557
558
559 // File for histograms and histogram booking
560 TString outfilename = "MUONefficiency.root";
53399039 561 TFile *ntupleFile = new TFile(outfilename.Data(), "RECREATE");
d949b15e 562
563 Ktuple->Write();
564 ESDtuple->Write();
53399039 565 ESDtupleBck->Write();
566
567 ntupleFile->Close();
d949b15e 568
53399039 569 TFile *histoFile = new TFile("MUONhistos.root", "RECREATE");
cfc3191e 570 hPrimaryVertex->Write();
53399039 571 hPtMuon->Write();
572 hPtMuonPlus->Write();
573 hPtMuonMinus->Write();
574 hPMuon->Write();
575 hChi2PerDof->Write();
576 hInvMassAll->Write();
577 hInvMassBg->Write();
578 hInvMassAll_vs_Pt ->Write();
579 hInvMassBgk_vs_Pt->Write();
580 hInvMassRes->Write();
581 hNumberOfTrack->Write();
582 hRapMuon ->Write();
583 hRapResonance ->Write();
584 hPtResonance ->Write();
585 hThetaPhiPlus ->Write();
586 hThetaPhiMinus ->Write();
d949b15e 587 histoFile->Close();
53399039 588
589 cout << "" << endl ;
590 cout << "*************************************************" << endl;
591
592 cout << "MUONefficiency : " << nprocessedevents << " events processed" << endl;
593 if (ResType==443)
594 cout << "Number of generated J/Psi (443) : " << numberOfGeneratedResonances << endl ;
595 if (ResType==553)
596 cout << "Number of generated Upsilon (553) :" << numberOfGeneratedResonances << endl ;
597 cout << "Chi2Cut for muon tracks = " << Chi2Cut << endl;
598 cout << "PtCutMin for muon tracks = " << PtCutMin << endl;
599 cout << "PtCutMax for muon tracks = " << PtCutMax << endl;
9bf6860b 600
89c8d66d 601 cout << "Entries (unlike sign dimuons) : " << hInvMassAll->GetEntries();
9bf6860b 602
89c8d66d 603 if (hInvMassAll->GetEntries() > 0) {
604 hInvMassAll->Fit("gaus","q0");
605 TF1* f1 = hInvMassAll->GetFunction("gaus");
606 cout << Form(". Rough sigma = %7.2f MeV/c2",f1->GetParameter(2)*1000.0);
607 }
9bf6860b 608
89c8d66d 609 cout << endl << "Entries (unlike sign dimuons) in the mass range ["<<invMassMinInPeak<<";"<<invMassMaxInPeak<<"] : " << EventInMass <<endl;
9bf6860b 610
53399039 611 if (ptTrig==0x800) cout << "Unlike Pair - All Pt" ;
612 if (ptTrig==0x400) cout << "Unlike Pair - High Pt" ;
613 if (ptTrig==0x200) cout << "Unlike Pair - Low Pt" ;
614 cout << " triggers : " << NbTrigger << endl;
d949b15e 615
53399039 616 cout << "Entries in the mass range with matching between reconstructed tracks and trigger tracks " << EventInMassMatch << endl;
617
d949b15e 618
619 return kTRUE;
620}