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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 * T0 reconstruction and filling ESD
19 * - reconstruct mean time (interation time)
20 * - vertex position
21 * - multiplicity
22 ********************************************************************/
23
24#include <AliESDEvent.h>
25#include "AliLog.h"
26#include "AliT0RecPoint.h"
27#include "AliRawReader.h"
28#include "AliT0RawReader.h"
29#include "AliT0digit.h"
30#include "AliT0Reconstructor.h"
31#include "AliT0Parameters.h"
32#include "AliT0Calibrator.h"
33#include "AliESDfriend.h"
34#include "AliESDTZEROfriend.h"
35#include "AliLog.h"
36#include "AliCDBEntry.h"
37#include "AliCDBManager.h"
38#include "AliCTPTimeParams.h"
39#include "AliLHCClockPhase.h"
40#include "AliT0CalibSeasonTimeShift.h"
41#include "AliESDRun.h"
42
43#include <TArrayI.h>
44#include <TGraph.h>
45#include <TMath.h>
46#include <Riostream.h>
47
48ClassImp(AliT0Reconstructor)
49
50 AliT0Reconstructor:: AliT0Reconstructor(): AliReconstructor(),
51 fdZonA(0),
52 fdZonC(0),
53 fZposition(0),
54 fParam(NULL),
55 fAmpLEDrec(),
56 fQTC(0),
57 fAmpLED(0),
58 fCalib(),
59 fLatencyHPTDC(9000),
60 fLatencyL1(0),
61 fLatencyL1A(0),
62 fLatencyL1C(0),
63 fGRPdelays(0),
64 fTimeMeanShift(0x0),
65 fTimeSigmaShift(0x0),
66 fESDTZEROfriend(NULL)
67
68{
69
70
71 //constructor
72 AliCDBEntry *entry = AliCDBManager::Instance()->Get("GRP/CTP/CTPtiming");
73 if (!entry) AliFatal("CTP timing parameters are not found in OCDB !");
74 AliCTPTimeParams *ctpParams = (AliCTPTimeParams*)entry->GetObject();
75 Float_t l1Delay = (Float_t)ctpParams->GetDelayL1L0()*25.0;
76
77 AliCDBEntry *entry1 = AliCDBManager::Instance()->Get("GRP/CTP/TimeAlign");
78 if (!entry1) AliFatal("CTP time-alignment is not found in OCDB !");
79 AliCTPTimeParams *ctpTimeAlign = (AliCTPTimeParams*)entry1->GetObject();
80 l1Delay += ((Float_t)ctpTimeAlign->GetDelayL1L0()*25.0);
81
82 AliCDBEntry *entry4 = AliCDBManager::Instance()->Get("GRP/Calib/LHCClockPhase");
83 if (!entry4) AliFatal("LHC clock-phase shift is not found in OCDB !");
84 AliLHCClockPhase *phase = (AliLHCClockPhase*)entry4->GetObject();
85
86 fGRPdelays = l1Delay - phase->GetMeanPhase();
87
88 AliCDBEntry *entry5 = AliCDBManager::Instance()->Get("T0/Calib/TimeAdjust");
89 if (entry5) {
90 AliT0CalibSeasonTimeShift *timeshift = (AliT0CalibSeasonTimeShift*)entry5->GetObject();
91 fTimeMeanShift = timeshift->GetT0Means();
92 fTimeSigmaShift = timeshift->GetT0Sigmas();
93 }
94 else
95 AliWarning("Time Adjust is not found in OCDB !");
96
97 fParam = AliT0Parameters::Instance();
98 fParam->Init();
99
100 for (Int_t i=0; i<24; i++){
101 TGraph* gr = fParam ->GetAmpLEDRec(i);
102 if (gr) fAmpLEDrec.AddAtAndExpand(gr,i) ;
103 TGraph* gr1 = fParam ->GetAmpLED(i);
104 if (gr1) fAmpLED.AddAtAndExpand(gr1,i) ;
105 TGraph* gr2 = fParam ->GetQTC(i);
106 if (gr2) fQTC.AddAtAndExpand(gr2,i) ;
107 }
108
109 fLatencyL1 = fParam->GetLatencyL1();
110 fLatencyL1A = fParam->GetLatencyL1A();
111 fLatencyL1C = fParam->GetLatencyL1C();
112 fLatencyHPTDC = fParam->GetLatencyHPTDC();
113 AliDebug(2,Form(" LatencyL1 %f latencyL1A %f latencyL1C %f latencyHPTDC %f \n",fLatencyL1, fLatencyL1A, fLatencyL1C, fLatencyHPTDC));
114
115 // fdZonC = TMath::Abs(fParam->GetZPositionShift("T0/C/PMT1"));
116 //fdZonA = TMath::Abs(fParam->GetZPositionShift("T0/A/PMT15"));
117 //here real Z position
118 fdZonC = TMath::Abs(fParam->GetZPosition("T0/C/PMT1"));
119 fdZonA = TMath::Abs(fParam->GetZPosition("T0/A/PMT15"));
120
121 fCalib = new AliT0Calibrator();
122 fESDTZEROfriend = new AliESDTZEROfriend();
123
124}
125
126//_____________________________________________________________________________
127void AliT0Reconstructor::Reconstruct(TTree*digitsTree, TTree*clustersTree) const
128{
129 // T0 digits reconstruction
130 Int_t refAmp = Int_t (GetRecoParam()->GetRefAmp());
131
132 TArrayI * timeCFD = new TArrayI(24);
133 TArrayI * timeLED = new TArrayI(24);
134 TArrayI * chargeQT0 = new TArrayI(24);
135 TArrayI * chargeQT1 = new TArrayI(24);
136
137
138 Float_t channelWidth = fParam->GetChannelWidth() ;
139 Float_t meanVertex = fParam->GetMeanVertex();
140 Float_t c = 0.0299792; // cm/ps
141 Double32_t vertex = 9999999;
142 Double32_t timeDiff=999999, meanTime=999999, timeclock=999999;
143
144
145 AliDebug(1,Form("Start DIGITS reconstruction "));
146
147 Float_t lowAmpThreshold = GetRecoParam()->GetLow(200);
148 Float_t highAmpThreshold = GetRecoParam()->GetHigh(200);
149 Int_t badpmt = GetRecoParam()->GetRefPoint();
150
151 TBranch *brDigits=digitsTree->GetBranch("T0");
152 AliT0digit *fDigits = new AliT0digit() ;
153 if (brDigits) {
154 brDigits->SetAddress(&fDigits);
155 }else{
156 AliError(Form("EXEC Branch T0 digits not found"));
157 return;
158 }
159
160 digitsTree->GetEvent(0);
161 digitsTree->GetEntry(0);
162 brDigits->GetEntry(0);
163 fDigits->GetTimeCFD(*timeCFD);
164 fDigits->GetTimeLED(*timeLED);
165 fDigits->GetQT0(*chargeQT0);
166 fDigits->GetQT1(*chargeQT1);
167 Int_t onlineMean = fDigits->MeanTime();
168
169 Bool_t tr[5];
170 for (Int_t i=0; i<5; i++) tr[i]=false;
171
172 Double32_t besttimeA=999999;
173 Double32_t besttimeC=999999;
174 Int_t pmtBestA=99999;
175 Int_t pmtBestC=99999;
176
177 AliT0RecPoint* frecpoints= new AliT0RecPoint ();
178 clustersTree->Branch( "T0", "AliT0RecPoint" ,&frecpoints);
179
180 Float_t time[24], adc[24], adcmip[24];
181 for (Int_t ipmt=0; ipmt<24; ipmt++) {
182 if(timeCFD->At(ipmt)>0 && ipmt != badpmt) {
183 if(( chargeQT1->At(ipmt) - chargeQT0->At(ipmt))>0)
184 adc[ipmt] = chargeQT1->At(ipmt) - chargeQT0->At(ipmt);
185 else
186 adc[ipmt] = 0;
187
188 time[ipmt] = fCalib-> WalkCorrection(refAmp, ipmt, Int_t(adc[ipmt]), timeCFD->At(ipmt)) ;
189
190 Double_t sl = Double_t(timeLED->At(ipmt) - timeCFD->At(ipmt));
191 // time[ipmt] = fCalib-> WalkCorrection( refAmp,ipmt, Int_t(sl), timeCFD->At(ipmt) ) ;
192 AliDebug(5,Form(" ipmt %i QTC %i , time in chann %i (led-cfd) %i ",
193 ipmt, Int_t(adc[ipmt]) ,Int_t(time[ipmt]),Int_t( sl)));
194
195 Double_t ampMip =((TGraph*)fAmpLED.At(ipmt))->Eval(sl);
196 Double_t qtMip = ((TGraph*)fQTC.At(ipmt))->Eval(adc[ipmt]);
197 AliDebug(5,Form(" Amlitude in MIPS LED %f , QTC %f in channels %f\n ",ampMip,qtMip, adc[ipmt]));
198
199 frecpoints->SetTime(ipmt, Float_t(time[ipmt]) );
200 frecpoints->SetAmpLED(ipmt, Float_t( ampMip)); //for cosmic &pp beam
201 frecpoints->SetAmp(ipmt, Float_t(qtMip));
202 adcmip[ipmt]=qtMip;
203
204 }
205 else {
206 time[ipmt] = 0;
207 adc[ipmt] = 0;
208 }
209 }
210
211 for (Int_t ipmt=0; ipmt<12; ipmt++){
212 if(time[ipmt] > 1 && ipmt != badpmt && adcmip[ipmt]>lowAmpThreshold && adcmip[ipmt]<highAmpThreshold) {
213 if(time[ipmt]<besttimeC){
214 besttimeC=time[ipmt]; //timeC
215 pmtBestC=ipmt;
216 }
217 }
218 }
219 for ( Int_t ipmt=12; ipmt<24; ipmt++){
220 if(time[ipmt] > 1 && ipmt != badpmt && adcmip[ipmt]>lowAmpThreshold && adcmip[ipmt]<highAmpThreshold) {
221 if(time[ipmt]<besttimeA) {
222 besttimeA=time[ipmt]; //timeA
223 pmtBestA=ipmt;}
224 }
225 }
226 if(besttimeA < 999999) {
227 frecpoints->SetTimeBestA(Int_t(besttimeA *channelWidth - fdZonA/c));
228 tr[1]=true;
229 }
230 if( besttimeC < 999999 ) {
231 frecpoints->SetTimeBestC(Int_t(besttimeC *channelWidth - fdZonA/c));
232 tr[2]=true;
233 }
234 AliDebug(5,Form(" besttimeA %f ch, besttimeC %f ch",besttimeA, besttimeC));
235 if(besttimeA <999999 && besttimeC < 999999 ){
236 // timeDiff = (besttimeC - besttimeA)*channelWidth;
237 timeDiff = (besttimeA - besttimeC)*channelWidth;
238 meanTime = (besttimeA + besttimeC)/2;// * channelWidth);
239 timeclock = meanTime *channelWidth -fdZonA/c ;
240 vertex = meanVertex - c*(timeDiff)/2.;// + (fdZonA - fdZonC)/2;
241 tr[0]=true;
242 }
243 frecpoints->SetVertex(vertex);
244 frecpoints->SetMeanTime(meanTime);
245 frecpoints->SetT0clock(timeclock);
246 frecpoints->SetT0Trig(tr);
247
248 AliDebug(5,Form("T0 triggers %d %d %d %d %d",tr[0],tr[1],tr[2],tr[3],tr[4]));
249
250 //online mean
251 frecpoints->SetOnlineMean(Int_t(onlineMean));
252 AliDebug(10,Form(" timeDiff %f #channel, meanTime %f #channel, vertex %f cm online mean %i timeclock %f ps",timeDiff, meanTime,vertex, Int_t(onlineMean), timeclock));
253
254
255
256
257
258 clustersTree->Fill();
259
260 delete timeCFD;
261 delete timeLED;
262 delete chargeQT0;
263 delete chargeQT1;
264}
265
266
267//_______________________________________________________________________
268
269void AliT0Reconstructor::Reconstruct(AliRawReader* rawReader, TTree*recTree) const
270{
271 // T0 raw ->
272 //
273 // reference amplitude and time ref. point from reco param
274
275 Float_t refAmp = GetRecoParam()->GetRefAmp();
276
277 // Int_t refPoint = 0;
278
279 //Bad channel
280 Int_t badpmt = GetRecoParam()->GetRefPoint();
281
282 Int_t low[500], high[500];
283
284 Int_t allData[110][5];
285
286 Int_t timeCFD[24], timeLED[24], chargeQT0[24], chargeQT1[24];
287 Double32_t timeDiff=999999, meanTime=999999, timeclock=9999999;
288 Float_t c = 29.9792458; // cm/ns
289 Double32_t vertex = 9999999;
290 Int_t onlineMean=0;
291 // Float_t meanVertex = fParam->GetMeanVertex();
292 Float_t meanVertex = 0;
293 for (Int_t i0=0; i0<110; i0++)
294 {
295 for (Int_t j0=0; j0<5; j0++) allData[i0][j0]=0;
296 low[i0] = Int_t (GetRecoParam()->GetLow(i0));
297 high[i0] = Int_t (GetRecoParam()->GetHigh(i0));
298 }
299 Float_t lowAmpThreshold = GetRecoParam()->GetLow(200);
300 Float_t highAmpThreshold = GetRecoParam()->GetHigh(200);
301 printf(" lowAmpThreshold %f highAmpThreshold %f \n",lowAmpThreshold, highAmpThreshold);
302
303 Double32_t besttimeA=9999999;
304 Double32_t besttimeC=9999999;
305 Int_t pmtBestA=99999;
306 Int_t pmtBestC=99999;
307
308 AliT0RecPoint* frecpoints= new AliT0RecPoint ();
309
310 recTree->Branch( "T0", "AliT0RecPoint" ,&frecpoints);
311
312 AliDebug(10," before read data ");
313 AliT0RawReader myrawreader(rawReader);
314
315 UInt_t type =rawReader->GetType();
316
317 if (!myrawreader.Next())
318 AliDebug(1,Form(" no raw data found!!"));
319 else
320 {
321 for (Int_t i=0; i<24; i++)
322 {
323 timeCFD[i]=0; timeLED[i]=0; chargeQT0[i]=0; chargeQT1[i]=0;
324 }
325 Int_t fBCID=Int_t (rawReader->GetBCID());
326 Int_t trmbunch= myrawreader.GetTRMBunchID();
327 AliDebug(10,Form(" CDH BC ID %i, TRM BC ID %i \n", fBCID, trmbunch ));
328
329 if(type == 7 ) { //only physics
330 for (Int_t i=0; i<107; i++) {
331 for (Int_t iHit=0; iHit<5; iHit++)
332 {
333 allData[i][iHit] = myrawreader.GetData(i,iHit);
334 }
335 }
336 Int_t ref=0;
337
338 // if (refPoint>0)
339 // ref = allData[refPoint][0]-5000;
340
341
342 Float_t channelWidth = fParam->GetChannelWidth() ;
343
344 // Int_t meanT0 = fParam->GetMeanT0();
345
346 for (Int_t in=0; in<12; in++)
347 {
348 for (Int_t iHit=0; iHit<5; iHit++)
349 {
350 if(allData[in+1][iHit] > low[in+1] &&
351 allData[in+1][iHit] < high[in+1])
352 {
353 timeCFD[in] = allData[in+1][iHit] ;
354 break;
355 }
356 }
357 for (Int_t iHit=0; iHit<5; iHit++)
358 {
359 if(allData[in+12+1][iHit] > low[in+12+1] &&
360 allData[in+1+12][iHit] < high[in+12+1])
361 {
362 timeLED[in] = allData[in+12+1][iHit] ;
363 break;
364 }
365 }
366 for (Int_t iHit=0; iHit<5; iHit++)
367 {
368 if(allData[in+1+56][iHit] > low[in+1+56] &&
369 allData[in+1+56][iHit] < high[in+1+56])
370 {
371 timeCFD[in+12] = allData[in+56+1][iHit] ;
372 break;
373 }
374 }
375
376 for (Int_t iHit=0; iHit<5; iHit++)
377 {
378 if(allData[in+1+68][iHit] > low[in+1+68] &&
379 allData[in+1+68][iHit] < high[in+1+68])
380 {
381
382 timeLED[in+12] = allData[in+68+1][iHit] ;
383 break;
384 }
385 }
386 AliDebug(5, Form(" readed i %i cfdC %i cfdA %i ledC %i ledA%i ",
387 in, timeCFD[in],timeCFD[in+12],timeLED[in],
388 timeLED[in+12]));
389
390 }
391
392
393 for (Int_t in=0; in<12; in++)
394 {
395 chargeQT0[in]=allData[2*in+25][0];
396 chargeQT1[in]=allData[2*in+26][0];
397 AliDebug(10, Form(" readed Raw %i %i %i",
398 in, chargeQT0[in],chargeQT1[in]));
399 }
400 for (Int_t in=12; in<24; in++)
401 {
402 chargeQT0[in]=allData[2*in+57][0];
403 chargeQT1[in]=allData[2*in+58][0];
404 AliDebug(10, Form(" readed Raw %i %i %i",
405 in, chargeQT0[in],chargeQT1[in]));
406
407 }
408
409 for (Int_t iHit=0; iHit<5; iHit++)
410 {
411 if(allData[49][iHit] > low[49] &&
412 allData[49][iHit] < high[49]){
413 onlineMean = allData[49][iHit];
414 break;
415 }
416 }
417 Double32_t time[24], adc[24], adcmip[24], noncalibtime[24];
418 for (Int_t ipmt=0; ipmt<24; ipmt++) {
419 if(timeCFD[ipmt]>0 && ipmt != badpmt ){
420 //for simulated data
421 //for physics data
422 if(( chargeQT0[ipmt] - chargeQT1[ipmt])>0) {
423 adc[ipmt] = chargeQT0[ipmt] - chargeQT1[ipmt];
424 }
425 else
426 adc[ipmt] = 0;
427 time[ipmt] = fCalib-> WalkCorrection(Int_t (refAmp), ipmt, Int_t(adc[ipmt]), timeCFD[ipmt] ) ;
428
429 Double_t sl = timeLED[ipmt] - timeCFD[ipmt];
430 // time[ipmt] = fCalib-> WalkCorrection( refAmp,ipmt, Int_t(sl), timeCFD[ipmt] ) ;
431 AliDebug(5,Form(" ipmt %i QTC %i , time in chann %i (led-cfd) %i ",
432 ipmt, Int_t(adc[ipmt]) ,Int_t(time[ipmt]),Int_t( sl)));
433 Double_t ampMip =( (TGraph*)fAmpLED.At(ipmt))->Eval(sl);
434 Double_t qtMip = ((TGraph*)fQTC.At(ipmt))->Eval(adc[ipmt]);
435 AliDebug(10,Form(" Amlitude in MIPS LED %f ; QTC %f; in channels %f\n ",ampMip,qtMip, adc[ipmt]));
436 //bad peak removing
437 frecpoints->SetTime(ipmt, Float_t(time[ipmt]) );
438 // frecpoints->SetTime(ipmt,Double32_t(timeCFD[ipmt]));
439 frecpoints->SetAmp(ipmt, Double32_t( qtMip));
440 adcmip[ipmt]=qtMip;
441 frecpoints->SetAmpLED(ipmt, Double32_t(ampMip));
442 noncalibtime[ipmt]= Double32_t (timeCFD[ipmt]);
443 }
444 else {
445 time[ipmt] = 0;
446 adc[ipmt] = 0;
447 noncalibtime[ipmt] = 0;
448 }
449 }
450 fESDTZEROfriend->SetT0timeCorr(noncalibtime) ;
451 for (Int_t ipmt=0; ipmt<12; ipmt++){
452 if(time[ipmt] > 1 && ipmt != badpmt && adcmip[ipmt]>lowAmpThreshold && adcmip[ipmt]<highAmpThreshold )
453 {
454 if(time[ipmt]<besttimeC){
455 besttimeC=time[ipmt]; //timeC
456 pmtBestC=ipmt;
457 }
458 }
459 }
460 for ( Int_t ipmt=12; ipmt<24; ipmt++)
461 {
462 if(time[ipmt] > 1 && ipmt != badpmt && adcmip[ipmt]>lowAmpThreshold && adcmip[ipmt]<highAmpThreshold)
463 {
464 if(time[ipmt]<besttimeA) {
465 besttimeA=time[ipmt]; //timeA
466 pmtBestA=ipmt;
467 }
468 }
469 }
470 if(besttimeA < 999999)
471 frecpoints->SetTimeBestA(besttimeA * channelWidth - 1000.*fLatencyHPTDC + 1000.*fLatencyL1A - 1000.*fGRPdelays - fTimeMeanShift[1]);
472
473 if( besttimeC < 999999 )
474 frecpoints->SetTimeBestC(besttimeC * channelWidth - 1000.*fLatencyHPTDC +1000.*fLatencyL1C - 1000.*fGRPdelays - fTimeMeanShift[2]);
475 AliDebug(5,Form(" pmtA %i besttimeA %f shift A %f ps, pmtC %i besttimeC %f shiftC %f ps",
476 pmtBestA,besttimeA, fTimeMeanShift[1],
477
478 pmtBestC, besttimeC,fTimeMeanShift[2]));
479 if(besttimeA <999999 && besttimeC < 999999 ){
480 timeDiff = ( besttimeA - besttimeC)* 0.001* channelWidth + fLatencyL1A - fLatencyL1C;
481 timeclock = channelWidth * Float_t( besttimeA+besttimeC)/2. - 1000.*fLatencyHPTDC + 1000.*fLatencyL1 - 1000.*fGRPdelays - fTimeMeanShift[0];
482 meanTime = (besttimeA+besttimeC-2.*Float_t(ref))/2.;
483 vertex = meanVertex - c*(timeDiff)/2. ; //+ (fdZonA - fdZonC)/2;
484 }
485 } //if phys event
486 AliDebug(10,Form(" timeDiff %f #channel, meanTime %f #channel, TOFmean%f vertex %f cm meanVertex %f online mean %i \n",timeDiff, meanTime,timeclock, vertex,meanVertex, onlineMean));
487 frecpoints->SetT0clock(timeclock);
488 frecpoints->SetVertex(vertex);
489 frecpoints->SetMeanTime(meanTime);
490 frecpoints->SetOnlineMean(Int_t(onlineMean));
491 // Set triggers
492
493 Bool_t tr[5];
494 Int_t trchan[5]= {50,51,52,55,56};
495 for (Int_t i=0; i<5; i++) tr[i]=false;
496 for (Int_t itr=0; itr<5; itr++) {
497 for (Int_t iHit=0; iHit<5; iHit++)
498 {
499 Int_t trr=trchan[itr];
500 if( allData[trr][iHit] > 0) tr[itr]=true;
501 }
502 }
503 frecpoints->SetT0Trig(tr);
504
505 //Set MPD
506 if(allData[53][0]>0 && allData[54][0])
507 frecpoints->SetMultA(allData[53][0]-allData[54][0]);
508 if(allData[105][0]>0 && allData[106][0])
509 frecpoints->SetMultC(allData[105][0]-allData[106][0]);
510
511
512 } // if (else )raw data
513 recTree->Fill();
514 if(frecpoints) delete frecpoints;
515}
516
517
518 //____________________________________________________________
519
520 void AliT0Reconstructor::FillESD(TTree */*digitsTree*/, TTree *clustersTree, AliESDEvent *pESD) const
521 {
522
523 /***************************************************
524 Resonstruct digits to vertex position
525 ****************************************************/
526
527 AliDebug(1,Form("Start FillESD T0"));
528 pESD ->SetT0spread(fTimeSigmaShift);
529
530
531 Float_t channelWidth = fParam->GetChannelWidth() ;
532 Float_t c = 0.0299792458; // cm/ps
533 Float_t currentVertex=0, shift=0;
534 Int_t ncont=-1;
535 const AliESDVertex* vertex = pESD->GetPrimaryVertex();
536 if (!vertex) vertex = pESD->GetPrimaryVertexSPD();
537 if (!vertex) vertex = pESD->GetPrimaryVertexTPC();
538 if (!vertex) vertex = pESD->GetVertex();
539
540 if (vertex) {
541 AliDebug(2, Form("Got %s (%s) from ESD: %f",
542 vertex->GetName(), vertex->GetTitle(), vertex->GetZ()));
543 currentVertex = vertex->GetZ();
544
545 ncont = vertex->GetNContributors();
546 // cout<<"@@ spdver "<<spdver<<" ncont "<<ncont<<endl;
547 if(ncont>0 ) {
548 shift = currentVertex/c;
549 }
550 }
551 TTree *treeR = clustersTree;
552
553 AliT0RecPoint* frecpoints= new AliT0RecPoint ();
554 if (!frecpoints) {
555 AliError("Reconstruct Fill ESD >> no recpoints found");
556 return;
557 }
558
559 AliDebug(1,Form("Start FillESD T0"));
560 TBranch *brRec = treeR->GetBranch("T0");
561 if (brRec) {
562 brRec->SetAddress(&frecpoints);
563 }else{
564 AliError(Form("EXEC Branch T0 rec not found"));
565 return;
566 }
567
568 brRec->GetEntry(0);
569 Double32_t amp[24], time[24], ampQTC[24], timecorr[24];
570 Double32_t* tcorr;
571 for(Int_t i=0; i<24; i++)
572 amp[i]=time[i]=ampQTC[i]=timecorr[i]=0;
573
574
575 Double32_t timeClock[3];
576 Double32_t zPosition = frecpoints -> GetVertex();
577 Double32_t timeStart = frecpoints -> GetMeanTime();
578 timeClock[0] = frecpoints -> GetT0clock() ;
579 timeClock[1] = frecpoints -> GetBestTimeA() + shift;
580 timeClock[2] = frecpoints -> GetBestTimeC() - shift;
581 for ( Int_t i=0; i<24; i++) {
582 time[i] = frecpoints -> GetTime(i); // ps to ns
583 if ( time[i] >1) {
584 ampQTC[i] = frecpoints -> GetAmp(i);
585 amp[i] = frecpoints -> AmpLED(i);
586 AliDebug(1,Form("T0: time %f ampQTC %f ampLED %f \n", time[i], ampQTC[i], amp[i]));
587 }
588 }
589 Int_t trig= frecpoints ->GetT0Trig();
590 pESD->SetT0Trig(trig);
591
592 pESD->SetT0zVertex(zPosition); //vertex Z position
593
594 Double32_t multA=frecpoints ->GetMultA();
595 Double32_t multC=frecpoints ->GetMultC();
596 // pESD->SetT0MultC(multC); // multiplicity Cside
597 // pESD->SetT0MultA(multA); // multiplicity Aside
598 pESD->SetT0(multA); // for backward compatubility
599 pESD->SetT0clock(multC); // for backward compatubility
600
601 for(Int_t i=0; i<3; i++)
602 pESD->SetT0TOF(i,timeClock[i]); // interaction time (ns)
603 pESD->SetT0time(time); // best TOF on each PMT
604 pESD->SetT0amplitude(ampQTC); // number of particles(MIPs) on each PMT
605
606 AliDebug(1,Form("T0: Vertex %f (T0A+T0C)/2 %f #channels T0signal %f ns OrA %f ns OrC %f T0trig %i\n",zPosition, timeStart, timeClock[0], timeClock[1], timeClock[2], trig));
607
608 if (pESD) {
609
610 AliESDfriend *fr = (AliESDfriend*)pESD->FindListObject("AliESDfriend");
611 if (fr) {
612 AliDebug(1, Form("Writing TZERO friend data to ESD tree"));
613
614 // if (ncont>2) {
615 tcorr = fESDTZEROfriend->GetT0timeCorr();
616 for ( Int_t i=0; i<24; i++) {
617 if(i<12 && time[i]>1) timecorr[i] = tcorr[i] - shift/channelWidth;
618 if(i>11 && time[i]>1) timecorr[i] = tcorr[i] + shift/channelWidth;
619 if(time[i]>1) AliDebug(10,Form("T0 friend : time %f ampQTC %f ampLED %f \n", timecorr[i], ampQTC[i], amp[i]));
620 }
621 fESDTZEROfriend->SetT0timeCorr( timecorr) ;
622 fESDTZEROfriend->SetT0ampLEDminCFD(amp);
623 fESDTZEROfriend->SetT0ampQTC(ampQTC);
624 fr->SetTZEROfriend(fESDTZEROfriend);
625 // }//
626 }
627 }
628
629
630
631} // vertex in 3 sigma
632
633
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635
636
637