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d599d913 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
88cb7938 16/* $Id$ */
17
d599d913 18//_________________________________________________________________________
0e46b9ae 19//
d599d913 20// This is a TTask that made the calculation of the Time zero using TOF.
7aeeaf38 21// Description: The algorithm used to calculate the time zero of
22// interaction using TOF detector is the following.
23// We select in the MonteCarlo some primary particles - or tracks in
24// the following - that strike the TOF detector (the larger part are
25// pions, kaons or protons).
26// We choose a set of 10 selected tracks, for each track You have the
27// length of the track when the TOF is reached (a standard TOF hit
28// does not contain this additional information, this is the reason
29// why we implemented a new time zero dedicated TOF hit class
30// AliTOFhitT0; in order to store this type of hit You have to use the
31// AliTOFv4T0 as TOF class in Your Config.C. In AliTOFv4T0 the
32// StepManager was modified in order to fill the TOF hit branch with
33// this type of hits; in fact the AliTOF::AddT0Hit is called rather
34// that the usual AliTOF::AddHit), the momentum at generation (from
35// TreeK) and the time of flight given by the TOF detector.
36// (Observe that the ctor of the AliTOF class, when the AliTOFv4T0
37// class is used, is called with the "tzero" option: it is in order
38// create the fHits TClonesArray filled with AliTOFhitT0 objects,
39// rather than with normal AliTOFhit)
40// Then Momentum and time of flight for each track are smeared
41// according to known experimental resolution (all sources of error
42// have been token into account).
43// Let consider now only one set of 10 tracks (the algorithm is the
44// same for all sets).
45// Assuming the (mass) hypothesis that each track can be AUT a pion,
46// AUT a kaon, AUT a proton, we consider all the 3 at 10 possible
47// cases.
d599d913 48// For each track in each (mass) configuration
7aeeaf38 49// (a configuration can be
50// e.g. pion/pion/kaon/proton/pion/proton/kaon/kaon/pion/pion)
51// we calculate the time zero (we know in fact the velocity of the
52// track after the assumption about its mass, the time of flight given
53// by the TOF, and the corresponding path travelled till the TOF
54// detector). Then for each mass configuration we have 10 time zero
55// and we can calculate the ChiSquare for the current configuration
56// using the weighted mean over all 10 time zero.
57// We call the best assignment the mass configuration that gives the
58// minimum value of the ChiSquare.
59// We plot the weighted mean over all 10 time zero for the best
60// assignment, the ChiSquare for the best assignment and the
61// corresponding confidence level.
62// The strong assumption is the MC selection of primary particles. It
63// will be introduced in the future also some more realistic
64// simulation about this point.
0e46b9ae 65//
d599d913 66// Use case:
67// root [0] AliTOFT0 * tzero = new AliTOFT0("galice.root")
68// Warning in <TDatabasePDG::TDatabasePDG>: object already instantiated
69// root [1] tzero->ExecuteTask()
70// root [2] tzero->ExecuteTask("tim")
71// // available parameters:
72// tim - print benchmarking information
7aeeaf38 73// all - print usefull informations about the number of
74// misidentified tracks and a comparison about the
75// true configuration (known from MC) and the best
d599d913 76// assignment
0e46b9ae 77//
d599d913 78//-- Author: F. Pierella
0e46b9ae 79//
80//_________________________________________________________________________
81
82#include "TCanvas.h"
83#include "TClonesArray.h"
84#include "TFile.h"
85#include "TFolder.h"
86#include "TFrame.h"
87#include "TH1.h"
88#include "TParticle.h"
89#include "TRandom.h"
90#include "TBenchmark.h"
91#include "TSystem.h"
92#include "TTask.h"
93#include "TTree.h"
94
d3c7bfac 95#include "AliMC.h"
88cb7938 96#include "AliRun.h"
d3c7bfac 97
d599d913 98#include "AliTOFhitT0.h"
0e46b9ae 99#include "AliTOFT0.h"
100#include "AliTOF.h"
101
102extern TBenchmark *gBenchmark;
103extern TSystem *gSystem;
104extern TRandom *gRandom;
105extern TROOT *gROOT;
106
107extern AliRun *gAlice;
108
d599d913 109
110ClassImp(AliTOFT0)
111
112//____________________________________________________________________________
113 AliTOFT0::AliTOFT0():TTask("AliTOFT0","")
114{
115 // ctor
ea7a588a 116 fNevents = 0 ;
d599d913 117}
118
119//____________________________________________________________________________
120 AliTOFT0::AliTOFT0(char* headerFile, Int_t nEvents):TTask("AliTOFT0","")
121{
7aeeaf38 122 //
123 //
124 //
125
d599d913 126 fNevents=nEvents ; // Number of events for which calculate the T0,
127 // default 0: it means all evens in current file
128 fLowerMomBound=1.5; // [GeV/c] default value
129 fUpperMomBound=2. ; // [GeV/c] default value
130 fTimeResolution = 1.2e-10; // 120 ps by default
131 fHeadersFile = headerFile ;
d599d913 132
133 TFile * file = (TFile*) gROOT->GetFile(fHeadersFile.Data() ) ;
134
135 //File was not opened yet
136 if(file == 0){
137 if(fHeadersFile.Contains("rfio"))
138 file = TFile::Open(fHeadersFile,"update") ;
139 else
140 file = new TFile(fHeadersFile.Data(),"update") ;
141 gAlice = (AliRun *) file->Get("gAlice") ;
142 }
143
144 // add Task to //root/Tasks folder
145 TTask * roottasks = (TTask*)gROOT->GetRootFolder()->FindObject("Tasks") ;
146 roottasks->Add(this) ;
147}
148
5c016a7b 149//____________________________________________________________________________
150 AliTOFT0::AliTOFT0(const AliTOFT0 & tzero):TTask("AliTOFT0","")
151{
7aeeaf38 152 // copy ctr
153
5c016a7b 154( (AliTOFT0 &)tzero ).Copy(*this);
155}
156
d599d913 157//____________________________________________________________________________
158 AliTOFT0::~AliTOFT0()
159{
160 // dtor
161}
162
163//____________________________________________________________________________
164void AliTOFT0::Exec(Option_t *option)
165{
166 //
167 // calculate T0 distribution for all events using chisquare
168 //
169 Int_t ngood=0;
170 Int_t nmisidentified=0;
171 Int_t nmisidentified0=0;
172 Int_t nmisidentified1=0;
173 Int_t nmisidentified2=0;
174 Int_t nmisidentified3=0;
175 Int_t nmisidentified4=0;
176 Int_t nmisidentified5=0;
177 Int_t nmisidentified6=0;
178 Int_t nmisidentified7=0;
179 Int_t nmisidentified8=0;
180 Int_t nmisidentified9=0;
181 Int_t ipartold = -1;
182 Int_t ipart;
183 Int_t selected=0;
184 Int_t istop=0;
185 Float_t timeresolutioninns=fTimeResolution*(1.e+9); // convert in [ns]
186 const Int_t kUPDATE = 5; // for visual option
187 Int_t itimes=0;
188 TCanvas* c1=0;
189 TCanvas* c2=0;
190 TCanvas* c3=0;
191
192 if(strstr(option,"visual")){
193 // Create a new canvas.
194 //c1 = new TCanvas("c1","Dynamic Visual Filling of time zero histo",10,10,500,500);
195 c1 = new TCanvas("c1","Dynamic Visual Filling of time zero histo",10,10,370,370);
196 c1->SetFillColor(35);
197 c1->GetFrame()->SetFillColor(21);
198 c1->GetFrame()->SetBorderSize(6);
199 c1->GetFrame()->SetBorderMode(-1);
200
201 //c2 = new TCanvas("c2","Dynamic Visual Filling of chisquare histo",550,10,500,500);
202 c2 = new TCanvas("c2","Dynamic Visual Filling of chisquare histo",380,10,370,370);
203 c2->SetFillColor(35);
204 c2->GetFrame()->SetFillColor(21);
205 c2->GetFrame()->SetBorderSize(6);
206 c2->GetFrame()->SetBorderMode(-1);
207
208 //c3 = new TCanvas("c3","Dynamic Visual Filling of confidence level histo",280,550,500,500);
209 c3 = new TCanvas("c3","Dynamic Visual Filling of confidence level histo",760,10,370,370);
210 c3->SetFillColor(35);
211 c3->GetFrame()->SetFillColor(21);
212 c3->GetFrame()->SetBorderSize(6);
213 c3->GetFrame()->SetBorderMode(-1);
214 }
215
216 if(strstr(option,"tim") || strstr(option,"all"))
217 gBenchmark->Start("TOFT0");
218
219 TH1F *htzerobest= new TH1F("htzerobest","T0 for best assignment",200,-1.,1.);
220 TH1F* hchibest = new TH1F("hchibest","ChiSquare Min Distribution",80,0.,40.);
221 TH1F* hchibestconflevel = new TH1F("hchibestconflevel","ChiSquare Min Confidence Level",10,0.,1.);
222
223 // setting histo colors
224 if(strstr(option,"visual")){
225 htzerobest->SetFillColor(48);
226 hchibest->SetFillColor(50);
227 hchibestconflevel->SetFillColor(52);
228 }
229
230 Int_t assparticle[10]={3,3,3,3,3,3,3,3,3,3};
231 Int_t truparticle[10]={3,3,3,3,3,3,3,3,3,3};
232 Float_t t0best=999.;
233 Float_t timeofflight[10]={0.,0.,0.,0.,0.,0.,0.,0.,0.,0.};
234 Float_t momentum[10]={0.,0.,0.,0.,0.,0.,0.,0.,0.,0.};
235 Float_t timezero[10];
236 Float_t weightedtimezero[10];
237 Float_t beta[10]={0.,0.,0.,0.,0.,0.,0.,0.,0.,0.};
238 Float_t sqMomError[10]={0.,0.,0.,0.,0.,0.,0.,0.,0.,0.};
239 Float_t sqTrackError[10]={0.,0.,0.,0.,0.,0.,0.,0.,0.,0.};
240 Float_t massarray[3]={0.13957,0.493677,0.9382723};
241 Float_t dummychisquare=0.;
242 Float_t chisquare=999.;
243 Float_t tracktoflen[10]={0.,0.,0.,0.,0.,0.,0.,0.,0.,0.};
244
7aeeaf38 245 AliTOF *detTOF = (AliTOF *) gAlice->GetDetector ("TOF");
d599d913 246
7aeeaf38 247 if (!detTOF) {
d599d913 248 Error("AliTOFT0","TOF not found");
249 return;
250 }
251
252 if(strstr(option,"all")){
0e46b9ae 253 AliInfo(Form("Selecting primary tracks with momentum between %d GeV/c and %d GeV/c", fLowerMomBound, fUpperMomBound));
254 AliInfo("Memorandum: 0 means PION | 1 means KAON | 2 means PROTON")
d599d913 255 }
256
257 if (fNevents == 0) fNevents = (Int_t) gAlice->TreeE()->GetEntries();
258
259 for (Int_t ievent = 0; ievent < fNevents; ievent++) {
260 gAlice->GetEvent(ievent);
7aeeaf38 261 TTree *hitTree = detTOF->TreeH ();
262 if (!hitTree)
d599d913 263 return;
264 TParticle* particle;
265 AliTOFhitT0* tofHit;
7aeeaf38 266 TClonesArray* tofHits = detTOF->Hits();
d599d913 267
268 Int_t lasttrack=-1;
269 Int_t nset=0;
5fff655e 270
7aeeaf38 271 hitTree->SetBranchStatus("*",0); // switch off all branches
272 hitTree->SetBranchStatus("TOF*",1); // switch on only TOF
5fff655e 273
d599d913 274 // Start loop on primary tracks in the hits containers
275
7aeeaf38 276 Int_t ntracks = static_cast<Int_t>(hitTree->GetEntries());
d599d913 277 for (Int_t track = 0; track < ntracks; track++)
278 {
279 if(nset>=5) break; // check on the number of set analyzed
280
281 gAlice->ResetHits();
7aeeaf38 282 hitTree->GetEvent(track);
0e46b9ae 283
284 AliMC *mcApplication = (AliMC*)gAlice->GetMCApp();
285
286 particle = mcApplication->Particle(track);
7aeeaf38 287 Int_t nhits = tofHits->GetEntriesFast();
d599d913 288
289 for (Int_t hit = 0; hit < nhits; hit++)
290 {
7aeeaf38 291 tofHit = (AliTOFhitT0 *) tofHits->UncheckedAt(hit);
d599d913 292 ipart = tofHit->GetTrack();
293 // check to discard the case when the same particle is selected more than one
294 // time
295
296 if (ipart != ipartold){
297
5d12ce38 298 particle = (TParticle*)gAlice->GetMCApp()->Particle(ipart);
d599d913 299
300 Float_t idealtime=tofHit->GetTof();
301 // Float_t time=idealtime;
302 Float_t time = gRandom->Gaus(idealtime, fTimeResolution);
303 Float_t toflen=tofHit->GetLen();
304 toflen=toflen/100.; // toflen given in m
305 Int_t pdg = particle->GetPdgCode();
306 Int_t abspdg =TMath::Abs(pdg);
307 Float_t idealmom = particle->P();
308 Float_t momres=idealmom*0.025; // 2.5% res token into account for all momenta
309 Float_t mom =gRandom->Gaus(idealmom,momres);
310
311 Bool_t isgoodpart=(abspdg==211 || abspdg==2212 || abspdg==321);
312
313 time*=1.E+9; // tof given in nanoseconds
314 if (particle->GetFirstMother() < 0 && isgoodpart && mom<=fUpperMomBound && mom>=fLowerMomBound){
315 selected+=1;
316 istop=selected;
317 if(istop>10) break;
318 Int_t index=selected-1;
319 timeofflight[index]=time;
320 tracktoflen[index]=toflen;
321 momentum[index]=mom;
0e46b9ae 322 //AliInfo(Form(" %d %d %d ", timeofflight[index], tracktoflen[index], momentum[index]));
d599d913 323 switch (abspdg) {
324 case 211:
325 truparticle[index]=0;
326 break ;
327 case 321:
328 truparticle[index]=1;
329 break ;
330 case 2212:
331 truparticle[index]=2;
332 break ;
333 }
334
335 }
336 ipartold = ipart;
337
338 if(istop==10){ // start analysis on current set
339 nset+=1;
340 lasttrack=track;
341 istop=0;
342 selected=0;
0e46b9ae 343 //AliInfo("starting t0 calculation for current set");
d599d913 344 for (Int_t i1=0; i1<3;i1++) {
ea7a588a 345 beta[0]=momentum[0]/sqrt(massarray[i1]*massarray[i1]+momentum[0]*momentum[0]);
d599d913 346 for (Int_t i2=0; i2<3;i2++) {
ea7a588a 347 beta[1]=momentum[1]/sqrt(massarray[i2]*massarray[i2]+momentum[1]*momentum[1]);
d599d913 348 for (Int_t i3=0; i3<3;i3++) {
ea7a588a 349 beta[2]=momentum[2]/sqrt(massarray[i3]*massarray[i3]+momentum[2]*momentum[2]);
d599d913 350 for (Int_t i4=0; i4<3;i4++) {
ea7a588a 351 beta[3]=momentum[3]/sqrt(massarray[i4]*massarray[i4]+momentum[3]*momentum[3]);
d599d913 352 for (Int_t i5=0; i5<3;i5++) {
ea7a588a 353 beta[4]=momentum[4]/sqrt(massarray[i5]*massarray[i5]+momentum[4]*momentum[4]);
d599d913 354 for (Int_t i6=0; i6<3;i6++) {
ea7a588a 355 beta[5]=momentum[5]/sqrt(massarray[i6]*massarray[i6]+momentum[5]*momentum[5]);
d599d913 356 for (Int_t i7=0; i7<3;i7++) {
ea7a588a 357 beta[6]=momentum[6]/sqrt(massarray[i7]*massarray[i7]+momentum[6]*momentum[6]);
d599d913 358 for (Int_t i8=0; i8<3;i8++) {
ea7a588a 359 beta[7]=momentum[7]/sqrt(massarray[i8]*massarray[i8]+momentum[7]*momentum[7]);
d599d913 360 for (Int_t i9=0; i9<3;i9++) {
ea7a588a 361 beta[8]=momentum[8]/sqrt(massarray[i9]*massarray[i9]+momentum[8]*momentum[8]);
d599d913 362 for (Int_t i10=0; i10<3;i10++) {
d599d913 363 beta[9]=momentum[9]/sqrt(massarray[i10]*massarray[i10]+momentum[9]*momentum[9]);
364
d599d913 365 Float_t meantzero=0.;
366 Float_t sumAllweights=0.;
367 for (Int_t itz=0; itz<10;itz++) {
368 sqMomError[itz]=((1.-beta[itz]*beta[itz])*0.025)*((1.-beta[itz]*beta[itz])*0.025)*(tracktoflen[itz]/(0.299792*beta[itz]))*(tracktoflen[itz]/(0.299792*beta[itz])); // this gives the square of the momentum error in nanoseconds
369 sqTrackError[itz]=(timeresolutioninns*timeresolutioninns+sqMomError[itz]); // total error for the current track
370 sumAllweights+=1./sqTrackError[itz];
ea7a588a 371
372 timezero[itz]=(tracktoflen[itz]/(beta[itz]*0.299792))-timeofflight[itz];
373 weightedtimezero[itz]=((tracktoflen[itz]/(beta[itz]*0.299792))-timeofflight[itz])/sqTrackError[itz];// weighted time zero for current track
d599d913 374 meantzero+=weightedtimezero[itz];
375 } // end loop for (Int_t itz=0; itz<10;itz++)
376 meantzero=meantzero/sumAllweights; // it is given in [ns]
377
378 dummychisquare=0.;
379 // calculate the chisquare for the current assignment
380 for (Int_t icsq=0; icsq<10;icsq++) {
381 dummychisquare+=(timezero[icsq]-meantzero)*(timezero[icsq]-meantzero)/sqTrackError[icsq];
382 } // end loop for (Int_t icsq=0; icsq<10;icsq++)
383
384 if(dummychisquare<=chisquare){
385 assparticle[0]=i1;
386 assparticle[1]=i2;
387 assparticle[2]=i3;
388 assparticle[3]=i4;
389 assparticle[4]=i5;
390 assparticle[5]=i6;
391 assparticle[6]=i7;
392 assparticle[7]=i8;
393 assparticle[8]=i9;
394 assparticle[9]=i10;
395 chisquare=dummychisquare;
396 t0best=meantzero;
397 } // close if(dummychisquare<=chisquare)
398
399 } // end loop on i10
400 } // end loop on i9
401 } // end loop on i8
402 } // end loop on i7
403 } // end loop on i6
404 } // end loop on i5
405 } // end loop on i4
406 } // end loop on i3
407 } // end loop on i2
408 } // end loop on i1
409
410 if(truparticle[0]==assparticle[0] && truparticle[1]==assparticle[1] && truparticle[2]==assparticle[2] && truparticle[3]==assparticle[3] && truparticle[4]==assparticle[4]&& truparticle[5]==assparticle[5] && truparticle[6]==assparticle[6] && truparticle[7]==assparticle[7] && truparticle[8]==assparticle[8] && truparticle[9]==assparticle[9]) ngood+=1;
411 if(truparticle[0]!=assparticle[0]) nmisidentified0+=1;
412 if(truparticle[1]!=assparticle[1]) nmisidentified1+=1;
413 if(truparticle[2]!=assparticle[2]) nmisidentified2+=1;
414 if(truparticle[3]!=assparticle[3]) nmisidentified3+=1;
415 if(truparticle[4]!=assparticle[4]) nmisidentified4+=1;
416 if(truparticle[5]!=assparticle[5]) nmisidentified5+=1;
417 if(truparticle[6]!=assparticle[6]) nmisidentified6+=1;
418 if(truparticle[7]!=assparticle[7]) nmisidentified7+=1;
419 if(truparticle[8]!=assparticle[8]) nmisidentified8+=1;
420 if(truparticle[9]!=assparticle[9]) nmisidentified9+=1;
421 // filling histos
422 htzerobest->Fill(t0best);
423 hchibest->Fill(chisquare);
424 Double_t dblechisquare=(Double_t)chisquare;
425 Float_t confLevel=(Float_t)TMath::Prob(dblechisquare,9); // ndf 10-1=9
426 hchibestconflevel->Fill(confLevel);
427 itimes++;
428 if(strstr(option,"all")){
0e46b9ae 429 AliInfo(Form("True Assignment %d %d %d %d %d %d %d %d %d %d", truparticle[0], truparticle[1], truparticle[2], truparticle[3], truparticle[4], truparticle[5], truparticle[6], truparticle[7], truparticle[8], truparticle[9]));
430 AliInfo(Form("Best Assignment %d %d %d %d %d %d %d %d %d %d", assparticle[0], assparticle[1], assparticle[2], assparticle[3], assparticle[4], assparticle[5], assparticle[6], assparticle[7], assparticle[8], assparticle[9]));
431 AliInfo(Form("Minimum ChiSquare for current set %d ", chisquare));
432 AliInfo(Form("Confidence Level (Minimum ChiSquare) %d", confLevel));
d599d913 433 }
434 if (strstr(option,"visual") && itimes && (itimes%kUPDATE) == 0) {
435 if (itimes == kUPDATE){
436 c1->cd();
437 htzerobest->Draw();
438 c2->cd();
439 hchibest->Draw();
440 c3->cd();
441 hchibestconflevel->Draw();
442 }
443 c1->Modified();
444 c1->Update();
445 c2->Modified();
446 c2->Update();
447 c3->Modified();
448 c3->Update();
449 if (gSystem->ProcessEvents())
450 break;
451 }
452 chisquare=999.;
453 t0best=999.;
454
455 } // end for the current set. close if(istop==5)
456 } // end condition on ipartold
457 } // end loop on hits for the current track
458 if(istop>=10) break;
459 } // end loop on ntracks
460 } //event loop
461
462 if(strstr(option,"all")){
463 nmisidentified=(nmisidentified0+nmisidentified1+nmisidentified2+nmisidentified3+nmisidentified4+nmisidentified5+nmisidentified6+nmisidentified7+nmisidentified8+nmisidentified9);
0e46b9ae 464 AliInfo(Form("total number of tracks token into account %i", 10*5*fNevents));
d599d913 465 Float_t badPercentage=100.*(Float_t)nmisidentified/(10*5*fNevents);
0e46b9ae 466 AliInfo(Form("total misidentified %i (%d %) ", nmisidentified, badPercentage));
467 AliInfo(Form("Total Number of set token into account %i", 5*fNevents));
d599d913 468 Float_t goodSetPercentage=100.*(Float_t)ngood/(5*fNevents);
0e46b9ae 469 AliInfo(Form("Number of set with no misidentified tracks %i (%d %)", ngood, goodSetPercentage));
d599d913 470 }
471
472 // free used memory for canvas
473 delete c1; c1=0;
474 delete c2; c2=0;
475 delete c3; c3=0;
476
477 // generating output filename only if not previously specified using SetTZeroFile
478 char outFileName[70];
479 strcpy(outFileName,"ht010tr120ps"); // global time resolution has to be converted from Int_t to char
480 // in order to have in the output filename this parameter
481 strcat(outFileName,fHeadersFile);
482
483 if(fT0File.IsNull()) fT0File=outFileName;
484
485 TFile* houtfile = new TFile(fT0File,"recreate");
486 houtfile->cd();
487 htzerobest->Write(0,TObject::kOverwrite);
488 hchibest->Write(0,TObject::kOverwrite);
489 hchibestconflevel->Write(0,TObject::kOverwrite);
490 houtfile->Close();
491
492
493 if(strstr(option,"tim") || strstr(option,"all")){
494 gBenchmark->Stop("TOFT0");
0e46b9ae 495 AliInfo("AliTOFT0:");
496 /*
d599d913 497 cout << " took " << gBenchmark->GetCpuTime("TOFT0") << " seconds in order to calculate T0 "
0e46b9ae 498 << gBenchmark->GetCpuTime("TOFT0")/fNevents << " seconds per event " << endl ;
499 */
500 gBenchmark->Print("TOFT0");
d599d913 501 }
502}
503
504//__________________________________________________________________
7aeeaf38 505void AliTOFT0::SetTZeroFile(char * file )
506{
507 //
508 //
509 //
510 printf("Destination file : %s \n", file) ;
d599d913 511 fT0File=file;
7aeeaf38 512
d599d913 513}
7aeeaf38 514
d599d913 515//__________________________________________________________________
5c016a7b 516void AliTOFT0::Print(Option_t* /*option*/)const
d599d913 517{
7aeeaf38 518 //
519 //
520 //
521 printf("------------------- %s -------------\n", GetName()) ;
d599d913 522 if(!fT0File.IsNull())
7aeeaf38 523 printf(" Writing T0 Distribution to file %s \n",(char*) fT0File.Data());
524
d599d913 525}
526
527//__________________________________________________________________
528Bool_t AliTOFT0::operator==( AliTOFT0 const &tzero )const
529{
7aeeaf38 530 //
531 // Equal operator
d599d913 532 //
533
534 if( (fTimeResolution==tzero.fTimeResolution)&&(fLowerMomBound==tzero.fLowerMomBound)&&(fUpperMomBound==tzero.fUpperMomBound))
535 return kTRUE ;
536 else
537 return kFALSE ;
538}