Adding methods to calculate the number of trigger flags on each side and fill the...
[u/mrichter/AliRoot.git] / VZERO / AliVZEROReconstructor.cxx
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b0d2c2d3 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///////////////////////////////////////////////////////////////////////////////
19/// //
20/// class for VZERO reconstruction //
21/// //
22///////////////////////////////////////////////////////////////////////////////
23
b44c933e 24#include <TH1F.h>
25#include <TF1.h>
b6fd9c4a 26#include <TParameter.h>
b44c933e 27
35b120ff 28#include "AliRunLoader.h"
2eb38194 29#include "AliRawReader.h"
fe0adf2a 30#include "AliGRPObject.h"
31#include "AliCDBManager.h"
32#include "AliCDBStorage.h"
33#include "AliCDBEntry.h"
b0d2c2d3 34#include "AliVZEROReconstructor.h"
2eb38194 35#include "AliVZERORawStream.h"
b44c933e 36#include "AliVZEROConst.h"
b14e6eb4 37#include "AliESDEvent.h"
a055ee24 38#include "AliVZEROTriggerMask.h"
b090e6a3 39#include "AliESDfriend.h"
40#include "AliESDVZEROfriend.h"
fad64858 41#include "AliVZEROdigit.h"
e58b4e66 42#include "AliVZEROCalibData.h"
75b6bc77 43#include "AliRunInfo.h"
b44c933e 44#include "AliCTPTimeParams.h"
30d5d647 45#include "AliLHCClockPhase.h"
b0d2c2d3 46
b0d2c2d3 47ClassImp(AliVZEROReconstructor)
48
ce7090f5 49//_____________________________________________________________________________
cb2228e6 50AliVZEROReconstructor:: AliVZEROReconstructor(): AliReconstructor(),
fe0adf2a 51 fESDVZERO(0x0),
52 fESD(0x0),
53 fESDVZEROfriend(0x0),
b44c933e 54 fCalibData(NULL),
55 fTimeSlewing(NULL),
53ad561b 56 fSaturationCorr(NULL),
fe0adf2a 57 fCollisionMode(0),
dbf24214 58 fBeamEnergy(0.),
59 fDigitsArray(0)
ce7090f5 60{
61 // Default constructor
ce7090f5 62 // Get calibration data
63
b44c933e 64 fCalibData = GetCalibData();
65
66 AliCDBEntry *entry = AliCDBManager::Instance()->Get("GRP/CTP/CTPtiming");
67 if (!entry) AliFatal("CTP timing parameters are not found in OCDB !");
68 AliCTPTimeParams *ctpParams = (AliCTPTimeParams*)entry->GetObject();
69 Float_t l1Delay = (Float_t)ctpParams->GetDelayL1L0()*25.0;
70
7905581c 71 AliCDBEntry *entry1 = AliCDBManager::Instance()->Get("GRP/CTP/TimeAlign");
72 if (!entry1) AliFatal("CTP time-alignment is not found in OCDB !");
73 AliCTPTimeParams *ctpTimeAlign = (AliCTPTimeParams*)entry1->GetObject();
74 l1Delay += ((Float_t)ctpTimeAlign->GetDelayL1L0()*25.0);
75
b44c933e 76 AliCDBEntry *entry2 = AliCDBManager::Instance()->Get("VZERO/Calib/TimeDelays");
77 if (!entry2) AliFatal("VZERO time delays are not found in OCDB !");
78 TH1F *delays = (TH1F*)entry2->GetObject();
79
80 AliCDBEntry *entry3 = AliCDBManager::Instance()->Get("VZERO/Calib/TimeSlewing");
81 if (!entry3) AliFatal("VZERO time slewing function is not found in OCDB !");
82 fTimeSlewing = (TF1*)entry3->GetObject();
83
30d5d647 84 AliCDBEntry *entry4 = AliCDBManager::Instance()->Get("GRP/Calib/LHCClockPhase");
85 if (!entry4) AliFatal("LHC clock-phase shift is not found in OCDB !");
86 AliLHCClockPhase *phase = (AliLHCClockPhase*)entry4->GetObject();
87
b44c933e 88 for(Int_t i = 0 ; i < 64; ++i) {
89 Int_t board = AliVZEROCalibData::GetBoardNumber(i);
87e3cdfb 90 fTimeOffset[i] = (((Float_t)fCalibData->GetRollOver(board)-
91 (Float_t)fCalibData->GetTriggerCountOffset(board))*25.0+
7905581c 92 fCalibData->GetTimeOffset(i)-
30d5d647 93 l1Delay-
94 phase->GetMeanPhase()+
b44c933e 95 delays->GetBinContent(i+1)+
96 kV0Offset);
97 }
53ad561b 98
99 AliCDBEntry *entry5 = AliCDBManager::Instance()->Get("VZERO/Calib/Saturation");
100 if (!entry5) AliFatal("Saturation entry is not found in OCDB !");
101 fSaturationCorr = (TObjArray*)entry5->GetObject();
ce7090f5 102}
103
104
105//_____________________________________________________________________________
106AliVZEROReconstructor& AliVZEROReconstructor::operator =
107 (const AliVZEROReconstructor& /*reconstructor*/)
108{
109// assignment operator
110
111 Fatal("operator =", "assignment operator not implemented");
112 return *this;
113}
114
115//_____________________________________________________________________________
116AliVZEROReconstructor::~AliVZEROReconstructor()
117{
118// destructor
44b6212f 119
829852e8 120 if(fESDVZERO)
121 delete fESDVZERO;
122 if(fESDVZEROfriend)
b090e6a3 123 delete fESDVZEROfriend;
829852e8 124 if(fDigitsArray)
dbf24214 125 delete fDigitsArray;
35b120ff 126}
127
128//_____________________________________________________________________________
d76c31f4 129void AliVZEROReconstructor::Init()
35b120ff 130{
ef314913 131// initializer
ce7090f5 132
35b120ff 133 fESDVZERO = new AliESDVZERO;
b090e6a3 134 fESDVZEROfriend = new AliESDVZEROfriend;
fe0adf2a 135
136 GetCollisionMode(); // fCollisionMode =1 for Pb-Pb simulated data
35b120ff 137}
138
139//______________________________________________________________________
2e0ee64a 140void AliVZEROReconstructor::ConvertDigits(AliRawReader* rawReader, TTree* digitsTree) const
35b120ff 141{
75b6bc77 142// converts RAW to digits
ef314913 143
2e0ee64a 144 if (!digitsTree) {
145 AliError("No digits tree!");
146 return;
147 }
35b120ff 148
dbf24214 149 if (!fDigitsArray)
150 fDigitsArray = new TClonesArray("AliVZEROdigit", 64);
151 digitsTree->Branch("VZERODigit", &fDigitsArray);
2e0ee64a 152
b090e6a3 153 fESDVZEROfriend->Reset();
154
2e0ee64a 155 rawReader->Reset();
156 AliVZERORawStream rawStream(rawReader);
75b6bc77 157 if (rawStream.Next()) {
1d51e5e5 158
159 Int_t aBBflagsV0A = 0;
160 Int_t aBBflagsV0C = 0;
161 Int_t aBGflagsV0A = 0;
162 Int_t aBGflagsV0C = 0;
163
164 for(Int_t iChannel=0; iChannel < 64; ++iChannel) {
165 Int_t offlineCh = rawStream.GetOfflineChannel(iChannel);
166 // ADC charge samples
167 Short_t chargeADC[AliVZEROdigit::kNClocks];
168 for(Int_t iClock=0; iClock < AliVZEROdigit::kNClocks; ++iClock) {
169 chargeADC[iClock] = rawStream.GetPedestal(iChannel,iClock);
170 }
171 // Integrator flag
172 Bool_t integrator = rawStream.GetIntegratorFlag(iChannel,AliVZEROdigit::kNClocks/2);
173 // Beam-beam and beam-gas flags
174 if(offlineCh<32) {
175 if (rawStream.GetBBFlag(iChannel,AliVZEROdigit::kNClocks/2)) aBBflagsV0C |= (1 << offlineCh);
176 if (rawStream.GetBGFlag(iChannel,AliVZEROdigit::kNClocks/2)) aBGflagsV0C |= (1 << offlineCh);
177 } else {
178 if (rawStream.GetBBFlag(iChannel,AliVZEROdigit::kNClocks/2)) aBBflagsV0A |= (1 << (offlineCh-32));
179 if (rawStream.GetBGFlag(iChannel,AliVZEROdigit::kNClocks/2)) aBGflagsV0A |= (1 << (offlineCh-32));
180 }
181 // HPTDC data (leading time and width)
182 Int_t board = AliVZEROCalibData::GetBoardNumber(offlineCh);
183 Float_t time = rawStream.GetTime(iChannel)*fCalibData->GetTimeResolution(board);
184 Float_t width = rawStream.GetWidth(iChannel)*fCalibData->GetWidthResolution(board);
185 // Add a digit
186 if(!fCalibData->IsChannelDead(iChannel)){
187 new ((*fDigitsArray)[fDigitsArray->GetEntriesFast()])
b47d88ce 188 AliVZEROdigit(offlineCh, time,
1d51e5e5 189 width,integrator,
190 chargeADC);
191 }
192
193 // Filling the part of esd friend object that is available only for raw data
194 fESDVZEROfriend->SetBBScalers(offlineCh,rawStream.GetBBScalers(iChannel));
195 fESDVZEROfriend->SetBGScalers(offlineCh,rawStream.GetBGScalers(iChannel));
196 for (Int_t iBunch = 0; iBunch < AliESDVZEROfriend::kNBunches; iBunch++) {
197 fESDVZEROfriend->SetChargeMB(offlineCh,iBunch,rawStream.GetChargeMB(iChannel,iBunch));
198 fESDVZEROfriend->SetIntMBFlag(offlineCh,iBunch,rawStream.GetIntMBFlag(iChannel,iBunch));
199 fESDVZEROfriend->SetBBMBFlag(offlineCh,iBunch,rawStream.GetBBMBFlag(iChannel,iBunch));
200 fESDVZEROfriend->SetBGMBFlag(offlineCh,iBunch,rawStream.GetBGMBFlag(iChannel,iBunch));
201 }
14f1a074 202 for (Int_t iEv = 0; iEv < AliESDVZEROfriend::kNEvOfInt; iEv++) {
203 fESDVZEROfriend->SetBBFlag(offlineCh,iEv,rawStream.GetBBFlag(iChannel,iEv));
204 fESDVZEROfriend->SetBGFlag(offlineCh,iEv,rawStream.GetBGFlag(iChannel,iEv));
205 }
1d51e5e5 206 }
207
208 // Filling the global part of esd friend object that is available only for raw data
209 fESDVZEROfriend->SetTriggerInputs(rawStream.GetTriggerInputs());
210 fESDVZEROfriend->SetTriggerInputsMask(rawStream.GetTriggerInputsMask());
211
212 for(Int_t iScaler = 0; iScaler < AliESDVZEROfriend::kNScalers; iScaler++)
213 fESDVZEROfriend->SetTriggerScalers(iScaler,rawStream.GetTriggerScalers(iScaler));
214
215 for(Int_t iBunch = 0; iBunch < AliESDVZEROfriend::kNBunches; iBunch++)
216 fESDVZEROfriend->SetBunchNumbersMB(iBunch,rawStream.GetBunchNumbersMB(iBunch));
b090e6a3 217
1d51e5e5 218 // Store the BB and BG flags in the digits tree (user info)
219 digitsTree->GetUserInfo()->Add(new TParameter<int>("BBflagsV0A",aBBflagsV0A));
220 digitsTree->GetUserInfo()->Add(new TParameter<int>("BBflagsV0C",aBBflagsV0C));
221 digitsTree->GetUserInfo()->Add(new TParameter<int>("BGflagsV0A",aBGflagsV0A));
222 digitsTree->GetUserInfo()->Add(new TParameter<int>("BGflagsV0C",aBGflagsV0C));
b090e6a3 223
1d51e5e5 224 digitsTree->Fill();
2e0ee64a 225 }
dbf24214 226
227 fDigitsArray->Clear();
1d51e5e5 228}
2e0ee64a 229
230//______________________________________________________________________
231void AliVZEROReconstructor::FillESD(TTree* digitsTree, TTree* /*clustersTree*/,
b14e6eb4 232 AliESDEvent* esd) const
2e0ee64a 233{
75b6bc77 234// fills multiplicities to the ESD - pedestal is now subtracted
fe0adf2a 235
2e0ee64a 236 if (!digitsTree) {
fe0adf2a 237 AliError("No digits tree!");
238 return;
2e0ee64a 239 }
a055ee24 240
2e0ee64a 241 TBranch* digitBranch = digitsTree->GetBranch("VZERODigit");
dbf24214 242 digitBranch->SetAddress(&fDigitsArray);
35b120ff 243
44b6212f 244 Float_t mult[64];
db0db003 245 Float_t adc[64];
246 Float_t time[64];
247 Float_t width[64];
b6fd9c4a 248 Bool_t aBBflag[64];
249 Bool_t aBGflag[64];
d0502ab2 250
35b120ff 251 for (Int_t i=0; i<64; i++){
db0db003 252 adc[i] = 0.0;
d0502ab2 253 mult[i] = 0.0;
b44c933e 254 time[i] = kInvalidTime;
db0db003 255 width[i] = 0.0;
b6fd9c4a 256 aBBflag[i] = kFALSE;
257 aBGflag[i] = kFALSE;
a055ee24 258 }
35b120ff 259
b6fd9c4a 260 Int_t aBBflagsV0A = 0;
261 Int_t aBBflagsV0C = 0;
262 Int_t aBGflagsV0A = 0;
263 Int_t aBGflagsV0C = 0;
264
265 if (digitsTree->GetUserInfo()->FindObject("BBflagsV0A")) {
266 aBBflagsV0A = ((TParameter<int>*)digitsTree->GetUserInfo()->FindObject("BBflagsV0A"))->GetVal();
267 }
268 else
269 AliWarning("V0A beam-beam flags not found in digits tree UserInfo! The flags will not be written to the raw-data stream!");
270
271 if (digitsTree->GetUserInfo()->FindObject("BBflagsV0C")) {
272 aBBflagsV0C = ((TParameter<int>*)digitsTree->GetUserInfo()->FindObject("BBflagsV0C"))->GetVal();
273 }
274 else
275 AliWarning("V0C beam-beam flags not found in digits tree UserInfo! The flags will not be written to the raw-data stream!");
276
277 if (digitsTree->GetUserInfo()->FindObject("BGflagsV0A")) {
278 aBGflagsV0A = ((TParameter<int>*)digitsTree->GetUserInfo()->FindObject("BGflagsV0A"))->GetVal();
279 }
280 else
281 AliWarning("V0A beam-gas flags not found in digits tree UserInfo! The flags will not be written to the raw-data stream!");
282
283 if (digitsTree->GetUserInfo()->FindObject("BGflagsV0C")) {
284 aBGflagsV0C = ((TParameter<int>*)digitsTree->GetUserInfo()->FindObject("BGflagsV0C"))->GetVal();
285 }
286 else
287 AliWarning("V0C beam-gas flags not found in digits tree UserInfo! The flags will not be written to the raw-data stream!");
288
1d51e5e5 289 // Beam-beam and beam-gas flags (hardware)
290 for (Int_t iChannel = 0; iChannel < 64; ++iChannel) {
291 if(iChannel < 32) {
292 aBBflag[iChannel] = (aBBflagsV0C >> iChannel) & 0x1;
293 aBGflag[iChannel] = (aBGflagsV0C >> iChannel) & 0x1;
294 }
295 else {
296 aBBflag[iChannel] = (aBBflagsV0A >> (iChannel-32)) & 0x1;
297 aBGflag[iChannel] = (aBGflagsV0A >> (iChannel-32)) & 0x1;
298 }
299 }
b6fd9c4a 300
2e0ee64a 301 Int_t nEntries = (Int_t)digitsTree->GetEntries();
35b120ff 302 for (Int_t e=0; e<nEntries; e++) {
2e0ee64a 303 digitsTree->GetEvent(e);
35b120ff 304
dbf24214 305 Int_t nDigits = fDigitsArray->GetEntriesFast();
35b120ff 306
307 for (Int_t d=0; d<nDigits; d++) {
dbf24214 308 AliVZEROdigit* digit = (AliVZEROdigit*) fDigitsArray->At(d);
1d51e5e5 309 Int_t pmNumber = digit->PMNumber();
310
311 // Pedestal retrieval and suppression
312 Bool_t integrator = digit->Integrator();
313 Float_t maxadc = 0;
314 Int_t imax = -1;
315 Float_t adcPedSub[AliVZEROdigit::kNClocks];
316 for(Int_t iClock=0; iClock < AliVZEROdigit::kNClocks; ++iClock) {
317 Short_t charge = digit->ChargeADC(iClock);
318 Bool_t iIntegrator = (iClock%2 == 0) ? integrator : !integrator;
319 Int_t k = pmNumber + 64*iIntegrator;
320 adcPedSub[iClock] = (Float_t)charge - fCalibData->GetPedestal(k);
321 if(adcPedSub[iClock] <= GetRecoParam()->GetNSigmaPed()*fCalibData->GetSigma(k)) {
322 adcPedSub[iClock] = 0;
323 continue;
324 }
325 if(iClock < GetRecoParam()->GetStartClock() || iClock > GetRecoParam()->GetEndClock()) continue;
326 if(adcPedSub[iClock] > maxadc) {
327 maxadc = adcPedSub[iClock];
328 imax = iClock;
329 }
b6fd9c4a 330 }
1d51e5e5 331
332 if (imax != -1) {
333 Int_t start = imax - GetRecoParam()->GetNPreClocks();
334 if (start < 0) start = 0;
335 Int_t end = imax + GetRecoParam()->GetNPostClocks();
336 if (end > 20) end = 20;
337 for(Int_t iClock = start; iClock <= end; iClock++) {
338 adc[pmNumber] += adcPedSub[iClock];
339 }
b6fd9c4a 340 }
341
1d51e5e5 342 // HPTDC leading time and width
343 // Correction for slewing and various time delays
344 time[pmNumber] = CorrectLeadingTime(pmNumber,digit->Time(),adc[pmNumber]);
345 width[pmNumber] = digit->Width();
346
829852e8 347 if (adc[pmNumber] > 0) {
348 AliDebug(1,Form("PM = %d ADC = %f TDC %f (%f) Int %d (%d %d %d %d %d) %f %f %f %f %d %d",pmNumber, adc[pmNumber],
349 digit->Time(),time[pmNumber],
350 integrator,
351 digit->ChargeADC(8),digit->ChargeADC(9),digit->ChargeADC(10),
352 digit->ChargeADC(11),digit->ChargeADC(12),
353 fCalibData->GetPedestal(pmNumber),fCalibData->GetSigma(pmNumber),
354 fCalibData->GetPedestal(pmNumber+64),fCalibData->GetSigma(pmNumber+64),
355 aBBflag[pmNumber],aBGflag[pmNumber]));
356 };
75b6bc77 357
53ad561b 358 TF1 *saturationFunc = (TF1*)fSaturationCorr->UncheckedAt(pmNumber);
359 if (!saturationFunc) AliFatal(Form("Saturation correction for channel %d is not found!",pmNumber));
360 AliDebug(1,Form("Saturation PM=%d %f %f",pmNumber,adc[pmNumber],saturationFunc->Eval(adc[pmNumber])));
361 mult[pmNumber] = saturationFunc->Eval(adc[pmNumber])*fCalibData->GetMIPperADC(pmNumber);
1d51e5e5 362
363 // Fill ESD friend object
364 for (Int_t iEv = 0; iEv < AliESDVZEROfriend::kNEvOfInt; iEv++) {
365 fESDVZEROfriend->SetPedestal(pmNumber,iEv,(Float_t)digit->ChargeADC(iEv));
366 fESDVZEROfriend->SetIntegratorFlag(pmNumber,iEv,(iEv%2 == 0) ? integrator : !integrator);
1d51e5e5 367 }
368 fESDVZEROfriend->SetTime(pmNumber,digit->Time());
369 fESDVZEROfriend->SetWidth(pmNumber,digit->Width());
370
35b120ff 371 } // end of loop over digits
35b120ff 372 } // end of loop over events in digits tree
6c6d6114 373
b44c933e 374 fESDVZERO->SetBit(AliESDVZERO::kCorrectedLeadingTime,kTRUE);
6c6d6114 375 fESDVZERO->SetMultiplicity(mult);
28fdf12c 376 fESDVZERO->SetADC(adc);
377 fESDVZERO->SetTime(time);
d0502ab2 378 fESDVZERO->SetWidth(width);
89a39339 379 fESDVZERO->SetBit(AliESDVZERO::kOnlineBitsFilled,kTRUE);
b6fd9c4a 380 fESDVZERO->SetBBFlag(aBBflag);
381 fESDVZERO->SetBGFlag(aBGflag);
6a5802c8 382 fESDVZERO->SetBit(AliESDVZERO::kCorrectedForSaturation,kTRUE);
a055ee24 383
b44c933e 384 // now fill the V0 decision and channel flags
385 {
386 AliVZEROTriggerMask triggerMask;
7bf5b178 387 triggerMask.SetRecoParam(GetRecoParam());
b44c933e 388 triggerMask.FillMasks(fESDVZERO, fCalibData, fTimeSlewing);
389 }
a055ee24 390
2e0ee64a 391 if (esd) {
44b6212f 392 AliDebug(1, Form("Writing VZERO data to ESD tree"));
393 esd->SetVZEROData(fESDVZERO);
2e0ee64a 394 }
b090e6a3 395
396 if (esd) {
fe0adf2a 397 AliESDfriend *fr = (AliESDfriend*)esd->FindListObject("AliESDfriend");
398 if (fr) {
399 AliDebug(1, Form("Writing VZERO friend data to ESD tree"));
400 fr->SetVZEROfriend(fESDVZEROfriend);
b090e6a3 401 }
402 }
dbf24214 403
404 fDigitsArray->Clear();
35b120ff 405}
406
ce7090f5 407//_____________________________________________________________________________
408AliCDBStorage* AliVZEROReconstructor::SetStorage(const char *uri)
409{
ef314913 410// Sets the storage
411
ce7090f5 412 Bool_t deleteManager = kFALSE;
413
414 AliCDBManager *manager = AliCDBManager::Instance();
415 AliCDBStorage *defstorage = manager->GetDefaultStorage();
416
417 if(!defstorage || !(defstorage->Contains("VZERO"))){
418 AliWarning("No default storage set or default storage doesn't contain VZERO!");
419 manager->SetDefaultStorage(uri);
420 deleteManager = kTRUE;
421 }
422
423 AliCDBStorage *storage = manager->GetDefaultStorage();
424
425 if(deleteManager){
44b6212f 426 AliCDBManager::Instance()->UnsetDefaultStorage();
427 defstorage = 0; // the storage is killed by AliCDBManager::Instance()->Destroy()
ce7090f5 428 }
429
430 return storage;
431}
432
fe0adf2a 433//____________________________________________________________________________
434void AliVZEROReconstructor::GetCollisionMode()
435{
75b6bc77 436 // Retrieval of collision mode
fe0adf2a 437
75b6bc77 438 TString beamType = GetRunInfo()->GetBeamType();
fe0adf2a 439 if(beamType==AliGRPObject::GetInvalidString()){
75b6bc77 440 AliError("VZERO cannot retrieve beam type");
fe0adf2a 441 return;
442 }
443
75b6bc77 444 if( (beamType.CompareTo("P-P") ==0) || (beamType.CompareTo("p-p") ==0) ){
445 fCollisionMode=0;
446 }
447 else if( (beamType.CompareTo("Pb-Pb") ==0) || (beamType.CompareTo("A-A") ==0) ){
448 fCollisionMode=1;
fe0adf2a 449 }
fe0adf2a 450
75b6bc77 451 fBeamEnergy = GetRunInfo()->GetBeamEnergy();
fe0adf2a 452 if(fBeamEnergy==AliGRPObject::GetInvalidFloat()) {
75b6bc77 453 AliError("Missing value for the beam energy ! Using 0");
fe0adf2a 454 fBeamEnergy = 0.;
455 }
456
75b6bc77 457 AliDebug(1,Form("\n ++++++ Beam type and collision mode retrieved as %s %d @ %1.3f GeV ++++++\n\n",beamType.Data(), fCollisionMode, fBeamEnergy));
fe0adf2a 458
459}
460
ce7090f5 461//_____________________________________________________________________________
462AliVZEROCalibData* AliVZEROReconstructor::GetCalibData() const
463{
ef314913 464 // Gets calibration object for VZERO set
ce7090f5 465
c0b82b5a 466 AliCDBManager *man = AliCDBManager::Instance();
ce7090f5 467
c0b82b5a 468 AliCDBEntry *entry=0;
469
470 entry = man->Get("VZERO/Calib/Data");
471
c0b82b5a 472 AliVZEROCalibData *calibdata = 0;
473
474 if (entry) calibdata = (AliVZEROCalibData*) entry->GetObject();
94a600a1 475 if (!calibdata) AliFatal("No calibration data from calibration database !");
ce7090f5 476
477 return calibdata;
478}
44b6212f 479
b44c933e 480Float_t AliVZEROReconstructor::CorrectLeadingTime(Int_t i, Float_t time, Float_t adc) const
481{
482 // Correct the leading time
483 // for slewing effect and
484 // misalignment of the channels
485 if (time < 1e-6) return kInvalidTime;
486
487 // Channel alignment and general offset subtraction
488 if (i < 32) time -= kV0CDelayCables;
489 time -= fTimeOffset[i];
490
491 // In case of pathological signals
492 if (adc < 1e-6) return time;
493
494 // Slewing correction
ed1ea59f 495 Float_t thr = fCalibData->GetCalibDiscriThr(i,kTRUE);
b44c933e 496 time -= fTimeSlewing->Eval(adc/thr);
497
498 return time;
499}