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Updating to take into account different names for HIJING in cocktail
[u/mrichter/AliRoot.git] / ZDC / AliZDCDigitizer.cxx
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8309c1ab 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// ZDC digitizer class //
21// //
22///////////////////////////////////////////////////////////////////////////////
23
3d7e0d0c 24// --- Standard libraries
8309c1ab 25#include <stdlib.h>
3d7e0d0c 26#include <stdio.h>
8309c1ab 27
28// --- ROOT system
29#include <TTree.h>
30#include <TFile.h>
31#include <TNtuple.h>
32#include <TRandom.h>
33
34// --- AliRoot header files
8309c1ab 35#include "AliRun.h"
36#include "AliHeader.h"
37#include "AliGenHijingEventHeader.h"
07e38cef 38#include "AliGenCocktailEventHeader.h"
f21fc003 39#include "AliDigitizationInput.h"
8309c1ab 40#include "AliRunLoader.h"
c93255fe 41#include "AliLoader.h"
12434381 42#include "AliGRPObject.h"
78d18275 43#include "AliCDBManager.h"
48642b09 44#include "AliCDBEntry.h"
8309c1ab 45#include "AliZDCSDigit.h"
46#include "AliZDCDigit.h"
47#include "AliZDCFragment.h"
a18a0543 48#include "AliZDCv3.h"
8309c1ab 49#include "AliZDCDigitizer.h"
8a2624cc 50
51class AliCDBStorage;
6024ec85 52class AliZDCPedestals;
8309c1ab 53
54ClassImp(AliZDCDigitizer)
55
56
57//____________________________________________________________________________
a718c993 58AliZDCDigitizer::AliZDCDigitizer() :
59 fIsCalibration(0),
fd9afd60 60 fIsSignalInADCGate(kFALSE),
61 fFracLostSignal(0.),
a718c993 62 fPedData(0),
2d9c70ab 63 fSpectators2Track(kFALSE),
f2e2aa97 64 fBeamEnergy(0.),
5d24ec95 65 fBeamType(""),
66 fIspASystem(kFALSE),
67 fIsRELDISgen(kFALSE)
8309c1ab 68{
698e394d 69 // Default constructor
83534754 70 for(Int_t i=0; i<2; i++) fADCRes[i]=0.;
8309c1ab 71}
72
73//____________________________________________________________________________
f21fc003 74AliZDCDigitizer::AliZDCDigitizer(AliDigitizationInput* digInput):
75 AliDigitizer(digInput),
a718c993 76 fIsCalibration(0), //By default the simulation doesn't create calib. data
fd9afd60 77 fIsSignalInADCGate(kFALSE),
78 fFracLostSignal(0.),
a718c993 79 fPedData(GetPedData()),
2d9c70ab 80 fSpectators2Track(kFALSE),
f2e2aa97 81 fBeamEnergy(0.),
5d24ec95 82 fBeamType(""),
83 fIspASystem(kFALSE),
84 fIsRELDISgen(kFALSE)
8309c1ab 85{
78d18275 86 // Get calibration data
d27e20dd 87 if(fIsCalibration!=0) printf("\n\t AliZDCDigitizer -> Creating calibration data (pedestals)\n");
edb4e893 88 for(Int_t i=0; i<5; i++){
698e394d 89 for(Int_t j=0; j<5; j++)
90 fPMGain[i][j] = 0.;
91 }
8309c1ab 92}
93
94//____________________________________________________________________________
95AliZDCDigitizer::~AliZDCDigitizer()
96{
97// Destructor
a718c993 98// Not implemented
8309c1ab 99}
100
101
cc2abffd 102//____________________________________________________________________________
103AliZDCDigitizer::AliZDCDigitizer(const AliZDCDigitizer &digitizer):
a718c993 104 AliDigitizer(),
105 fIsCalibration(digitizer.fIsCalibration),
fd9afd60 106 fIsSignalInADCGate(digitizer.fIsSignalInADCGate),
107 fFracLostSignal(digitizer.fFracLostSignal),
a718c993 108 fPedData(digitizer.fPedData),
2d9c70ab 109 fSpectators2Track(digitizer.fSpectators2Track),
f2e2aa97 110 fBeamEnergy(digitizer.fBeamEnergy),
5d24ec95 111 fBeamType(digitizer.fBeamType),
112 fIspASystem(digitizer.fIspASystem),
113 fIsRELDISgen(digitizer.fIsRELDISgen)
cc2abffd 114{
115 // Copy constructor
116
edb4e893 117 for(Int_t i=0; i<5; i++){
cc2abffd 118 for(Int_t j=0; j<5; j++){
119 fPMGain[i][j] = digitizer.fPMGain[i][j];
120 }
121 }
122 for(Int_t i=0; i<2; i++) fADCRes[i] = digitizer.fADCRes[i];
cc2abffd 123
12434381 124
cc2abffd 125}
126
8309c1ab 127//____________________________________________________________________________
128Bool_t AliZDCDigitizer::Init()
129{
48642b09 130 // Initialize the digitizer
12434381 131
5d24ec95 132
133 //printf(" **** Initializing AliZDCDigitizer fBeamEnergy = %1.0f GeV\n\n", fBeamEnergy);
12434381 134 AliCDBEntry* entry = AliCDBManager::Instance()->Get("GRP/GRP/Data");
83534754 135 if(!entry) AliFatal("No calibration data loaded!");
12434381 136 AliGRPObject* grpData = 0x0;
137 if(entry){
138 TMap* m = dynamic_cast<TMap*>(entry->GetObject()); // old GRP entry
139 if(m){
140 //m->Print();
141 grpData = new AliGRPObject();
142 grpData->ReadValuesFromMap(m);
143 }
144 else{
145 grpData = dynamic_cast<AliGRPObject*>(entry->GetObject()); // new GRP entry
146 }
147 entry->SetOwner(0);
148 AliCDBManager::Instance()->UnloadFromCache("GRP/GRP/Data");
149 }
83534754 150 if(!grpData){
151 AliError("No GRP entry found in OCDB! \n ");
152 return kFALSE;
153 }
12434381 154
5d24ec95 155 fBeamType = grpData->GetBeamType();
156 if(fBeamType==AliGRPObject::GetInvalidString()){
12434381 157 AliError("\t UNKNOWN beam type from GRP obj -> PMT gains not set in ZDC digitizer!!!\n");
158 }
159
5d24ec95 160 // If beam energy is not set from Config.C (RELDIS / spectator generators)
161 if(fBeamEnergy<0.01){
162 fBeamEnergy = grpData->GetBeamEnergy();
163 if(fBeamEnergy==AliGRPObject::GetInvalidFloat()){
164 AliWarning("GRP/GRP/Data entry: missing value for the beam energy ! Using 0.");
165 AliError("\t UNKNOWN beam type from GRP obj -> PMT gains not set in ZDC digitizer!!!\n");
166 fBeamEnergy = 0.;
a736fd93 167 }
12434381 168 }
f2e2aa97 169
f6c61b40 170 /*if(fIspASystem){
5d24ec95 171 fBeamType = "p-A";
172 AliInfo(" AliZDCDigitizer -> Manually setting beam type to p-A\n");
f6c61b40 173 }*/
5d24ec95 174
175 // Setting beam type for spectator generator and RELDIS generator
176 if(((fBeamType.CompareTo("UNKNOWN")) == 0) || fIsRELDISgen){
177 fBeamType = "A-A";
178 AliInfo(" AliZDCDigitizer -> Manually setting beam type to A-A\n");
179 }
180 printf("\t AliZDCDigitizer -> beam type %s - beam energy = %f GeV\n", fBeamType.Data(), fBeamEnergy);
181
db247fc3 182 if(fBeamEnergy>0.1){
183 ReadPMTGains();
f6c61b40 184 //CalculatePMTGains();
db247fc3 185 }
186 else{
187 AliWarning("\n Beam energy is 0 -> ZDC PMT gains can't be set -> NO ZDC DIGITS!!!\n");
188 }
189
698e394d 190 // ADC Caen V965
7f73eb6b 191 fADCRes[0] = 0.0000008; // ADC Resolution high gain: 200 fC/adcCh
192 fADCRes[1] = 0.0000064; // ADC Resolution low gain: 25 fC/adcCh
8309c1ab 193
194 return kTRUE;
195}
196
197//____________________________________________________________________________
f21fc003 198void AliZDCDigitizer::Digitize(Option_t* /*option*/)
8309c1ab 199{
48642b09 200 // Execute digitization
8309c1ab 201
d79f8d50 202 // ------------------------------------------------------------
f91d1e35 203 // !!! 2nd ZDC set added
204 // *** 1st 3 arrays are digits from REAL (simulated) hits
205 // *** last 2 are copied from simulated digits
fd9afd60 206 // --- pm[0][...] = light in ZN side C [C, Q1, Q2, Q3, Q4]
207 // --- pm[1][...] = light in ZP side C [C, Q1, Q2, Q3, Q4]
48642b09 208 // --- pm[2][...] = light in ZEM [x, 1, 2, x, x]
fd9afd60 209 // --- pm[3][...] = light in ZN side A [C, Q1, Q2, Q3, Q4] ->NEW!
210 // --- pm[4][...] = light in ZP side A [C, Q1, Q2, Q3, Q4] ->NEW!
d79f8d50 211 // ------------------------------------------------------------
212 Float_t pm[5][5];
8574b308 213 for(Int_t iSector1=0; iSector1<5; iSector1++)
214 for(Int_t iSector2=0; iSector2<5; iSector2++){
8309c1ab 215 pm[iSector1][iSector2] = 0;
216 }
d79f8d50 217
218 // ------------------------------------------------------------
219 // ### Out of time ADC added (22 channels)
220 // --- same codification as for signal PTMs (see above)
221 // ------------------------------------------------------------
3d7ab74d 222 // Float_t pmoot[5][5];
223 // for(Int_t iSector1=0; iSector1<5; iSector1++)
224 // for(Int_t iSector2=0; iSector2<5; iSector2++){
225 // pmoot[iSector1][iSector2] = 0;
226 // }
8309c1ab 227
228 // impact parameter and number of spectators
131b5d31 229 Float_t impPar = 0;
fd9afd60 230 Int_t specNTarg = 0, specPTarg = 0;
231 Int_t specNProj = 0, specPProj = 0;
a18a0543 232 Float_t signalTime0 = 0.;
8309c1ab 233
234 // loop over input streams
f21fc003 235 for(Int_t iInput = 0; iInput<fDigInput->GetNinputs(); iInput++){
8309c1ab 236
237 // get run loader and ZDC loader
238 AliRunLoader* runLoader =
f21fc003 239 AliRunLoader::GetRunLoader(fDigInput->GetInputFolderName(iInput));
8309c1ab 240 AliLoader* loader = runLoader->GetLoader("ZDCLoader");
8574b308 241 if(!loader) continue;
8309c1ab 242
243 // load sdigits
244 loader->LoadSDigits();
245 TTree* treeS = loader->TreeS();
8574b308 246 if(!treeS) continue;
8309c1ab 247 AliZDCSDigit sdigit;
248 AliZDCSDigit* psdigit = &sdigit;
249 treeS->SetBranchAddress("ZDC", &psdigit);
250
251 // loop over sdigits
8574b308 252 for(Int_t iSDigit=0; iSDigit<treeS->GetEntries(); iSDigit++){
8309c1ab 253 treeS->GetEntry(iSDigit);
7f73eb6b 254 //
8574b308 255 if(!psdigit) continue;
256 if((sdigit.GetSector(1) < 0) || (sdigit.GetSector(1) > 4)){
8309c1ab 257 AliError(Form("\nsector[0] = %d, sector[1] = %d\n",
258 sdigit.GetSector(0), sdigit.GetSector(1)));
259 continue;
260 }
fd9afd60 261 // Checking if signal is inside ADC gate
262 if(iSDigit==0) signalTime0 = sdigit.GetTrackTime();
263 else{
264 // Assuming a signal lenght of 20 ns, signal is in gate if
265 // signal ENDS in signalTime0+50. -> sdigit.GetTrackTime()+20<=signalTime0+50.
266 if(sdigit.GetTrackTime()<=signalTime0+30.) fIsSignalInADCGate = kTRUE;
267 if(sdigit.GetTrackTime()>signalTime0+30.){
268 fIsSignalInADCGate = kFALSE;
5d24ec95 269 // Vedi quaderno per spiegazione approx. usata nel calcolo della fraz. di segnale perso
fd9afd60 270 fFracLostSignal = (sdigit.GetTrackTime()-30)*(sdigit.GetTrackTime()-30)/280.;
271 }
272 }
698e394d 273
fd9afd60 274 Float_t sdSignal = sdigit.GetLightPM();
275 if(fIsSignalInADCGate == kFALSE){
7e858b1d 276 AliDebug(2,Form("\t Signal time %f -> fraction %f of ZDC signal for det.(%d, %d) out of ADC gate\n",
0fba8107 277 sdigit.GetTrackTime(),fFracLostSignal,sdigit.GetSector(0),sdigit.GetSector(1)));
fd9afd60 278 sdSignal = (1-fFracLostSignal)*sdSignal;
279 }
280
48642b09 281 pm[(sdigit.GetSector(0))-1][sdigit.GetSector(1)] += sdigit.GetLightPM();
698e394d 282 //Ch. debug
283 /*printf("\t Detector %d, Tower %d -> pm[%d][%d] = %.0f \n",
48642b09 284 sdigit.GetSector(0), sdigit.GetSector(1),sdigit.GetSector(0)-1,
698e394d 285 sdigit.GetSector(1), pm[sdigit.GetSector(0)-1][sdigit.GetSector(1)]);
878fa0b3 286 */
fd9afd60 287
8309c1ab 288 }
289
8309c1ab 290 loader->UnloadSDigits();
291
292 // get the impact parameter and the number of spectators in case of hijing
8574b308 293 if(!runLoader->GetAliRun()) runLoader->LoadgAlice();
d3b3a3b2 294 AliHeader* header = runLoader->GetHeader();
8574b308 295 if(!header) continue;
8309c1ab 296 AliGenEventHeader* genHeader = header->GenEventHeader();
8574b308 297 if(!genHeader) continue;
07e38cef 298 AliGenHijingEventHeader *hijingHeader = 0;
299 if(genHeader->InheritsFrom(AliGenHijingEventHeader::Class())) hijingHeader = dynamic_cast <AliGenHijingEventHeader*> (genHeader);
300 else if(genHeader->InheritsFrom(AliGenCocktailEventHeader::Class())){
301 TList* listOfHeaders = ((AliGenCocktailEventHeader*) genHeader)->GetHeaders();
c47d6938 302 if(listOfHeaders){
303 hijingHeader = dynamic_cast <AliGenHijingEventHeader*> (listOfHeaders->FindObject("Hijing"));
304 if(!hijingHeader) hijingHeader = dynamic_cast <AliGenHijingEventHeader*> (listOfHeaders->FindObject("HijingpPbPb"));
305 if(!hijingHeader) hijingHeader = dynamic_cast <AliGenHijingEventHeader*> (listOfHeaders->FindObject("HijingpPb"));
306 if(!hijingHeader) hijingHeader = dynamic_cast <AliGenHijingEventHeader*> (listOfHeaders->FindObject("HijingpPb_0"));
307 }
01e01248 308 else{
309 AliWarning(" No list of headers from generator -> skipping event\n");
310 continue;
311 }
07e38cef 312 }
c47d6938 313 if(!hijingHeader){
314 listOfHeaders->Dump();
315 printf(" No HIJING header found in list of headers from generator\n");
316 //continue;
317 }
07e38cef 318
8fced614 319 if(fSpectators2Track==kTRUE){
320 impPar = hijingHeader->ImpactParameter();
07e38cef 321 specNProj = hijingHeader->ProjSpectatorsn();
322 specPProj = hijingHeader->ProjSpectatorsp();
323 specNTarg = hijingHeader->TargSpectatorsn();
324 specPTarg = hijingHeader->TargSpectatorsp();
5d24ec95 325 AliInfo(Form("\t AliZDCDigitizer: b = %1.2f fm\n"
8fced614 326 " \t PROJECTILE: #spectator n %d, #spectator p %d\n"
327 " \t TARGET: #spectator n %d, #spectator p %d\n",
5d24ec95 328 impPar, specNProj, specPProj, specNTarg, specPTarg));
a18a0543 329
5d24ec95 330 // Applying fragmentation algorithm and adding spectator signal
331 Int_t freeSpecNProj=0, freeSpecPProj=0;
332 if(specNProj!=0 || specPProj!=0) Fragmentation(impPar, specNProj, specPProj, freeSpecNProj, freeSpecPProj);
333 Int_t freeSpecNTarg=0, freeSpecPTarg=0;
334 if(specNTarg!=0 || specPTarg!=0) Fragmentation(impPar, specNTarg, specPTarg, freeSpecNTarg, freeSpecPTarg);
335 if(freeSpecNProj!=0) SpectatorSignal(1, freeSpecNProj, pm);
336 if(freeSpecPProj!=0) SpectatorSignal(2, freeSpecPProj, pm);
337 AliInfo(Form("\t AliZDCDigitizer -> Adding spectator signal for PROJECTILE: %d free n and %d free p\n",freeSpecNProj,freeSpecPProj));
338 if(freeSpecNTarg!=0) SpectatorSignal(3, freeSpecNTarg, pm);
339 if(freeSpecPTarg!=0) SpectatorSignal(4, freeSpecPTarg, pm);
340 AliInfo(Form("\t AliZDCDigitizer -> Adding spectator signal for TARGET: %d free n and %d free p\n",freeSpecNTarg,freeSpecPTarg));
341 }
8309c1ab 342 }
343
8a2624cc 344
8309c1ab 345 // get the output run loader and loader
346 AliRunLoader* runLoader =
f21fc003 347 AliRunLoader::GetRunLoader(fDigInput->GetOutputFolderName());
8309c1ab 348 AliLoader* loader = runLoader->GetLoader("ZDCLoader");
8574b308 349 if(!loader) {
8309c1ab 350 AliError("no ZDC loader found");
351 return;
352 }
353
354 // create the output tree
355 const char* mode = "update";
8574b308 356 if(runLoader->GetEventNumber() == 0) mode = "recreate";
8309c1ab 357 loader->LoadDigits(mode);
358 loader->MakeTree("D");
359 TTree* treeD = loader->TreeD();
360 AliZDCDigit digit;
361 AliZDCDigit* pdigit = &digit;
362 const Int_t kBufferSize = 4000;
363 treeD->Branch("ZDC", "AliZDCDigit", &pdigit, kBufferSize);
364
365 // Create digits
80e87581 366 Int_t sector[2];
367 Int_t digi[2], digioot[2];
368 for(sector[0]=1; sector[0]<6; sector[0]++){
abf60186 369 for(sector[1]=0; sector[1]<5; sector[1]++){
370 if((sector[0]==3) && ((sector[1]<1) || (sector[1]>2))) continue;
8574b308 371 for(Int_t res=0; res<2; res++){
abf60186 372 digi[res] = Phe2ADCch(sector[0], sector[1], pm[sector[0]-1][sector[1]], res)
48642b09 373 + Pedestal(sector[0], sector[1], res);
7f73eb6b 374 }
abf60186 375 new(pdigit) AliZDCDigit(sector, digi);
8309c1ab 376 treeD->Fill();
698e394d 377
378 //Ch. debug
379 //printf("\t DIGIT added -> det %d quad %d - digi[0,1] = [%d, %d]\n",
380 // sector[0], sector[1], digi[0], digi[1]); // Chiara debugging!
381
8309c1ab 382 }
83347831 383 } // Loop over detector
384 // Adding in-time digits for 2 reference PTM signals (after signal ch.)
385 // (for the moment the ref. signal is completely invented assuming a PMgain of 5*10^4!)
386 Int_t sectorRef[2];
387 sectorRef[1] = 5;
9d38ced8 388 Int_t sigRef[2];
80e87581 389 // Reference signal are set to 100 (high gain chain) and 800 (low gain chain)
9d38ced8 390 if(fIsCalibration==0) {sigRef[0]=100; sigRef[1]=800;}
80e87581 391 else {sigRef[0]=0; sigRef[1]=0;} // calibration -> simulation of pedestal values
9d38ced8 392 //
83347831 393 for(Int_t iref=0; iref<2; iref++){
394 sectorRef[0] = 3*iref+1;
395 for(Int_t res=0; res<2; res++){
396 sigRef[res] += Pedestal(sectorRef[0], sectorRef[1], res);
397 }
83347831 398 new(pdigit) AliZDCDigit(sectorRef, sigRef);
399 treeD->Fill();
698e394d 400
401 //Ch. debug
402 //printf("\t RefDigit added -> det = %d, quad = %d - digi[0,1] = [%d, %d]\n",
403 // sectorRef[0], sectorRef[1], sigRef[0], sigRef[1]); // Chiara debugging!
abf60186 404 }
d79f8d50 405 //
406 // --- Adding digits for out-of-time channels after signal digits
80e87581 407 for(sector[0]=1; sector[0]<6; sector[0]++){
d79f8d50 408 for(sector[1]=0; sector[1]<5; sector[1]++){
409 if((sector[0]==3) && ((sector[1]<1) || (sector[1]>2))) continue;
8574b308 410 for(Int_t res=0; res<2; res++){
d79f8d50 411 digioot[res] = Pedestal(sector[0], sector[1], res); // out-of-time ADCs
412 }
d79f8d50 413 new(pdigit) AliZDCDigit(sector, digioot);
414 treeD->Fill();
698e394d 415
416 //Ch. debug
417 //printf("\t DIGIToot added -> det = %d, quad = %d - digi[0,1] = [%d, %d]\n",
418 // sector[0], sector[1], digioot[0], digioot[1]); // Chiara debugging!
d79f8d50 419 }
420 }
83347831 421 // Adding out-of-time digits for 2 reference PTM signals (after out-of-time ch.)
422 Int_t sigRefoot[2];
423 for(Int_t iref=0; iref<2; iref++){
424 sectorRef[0] = 3*iref+1;
425 for(Int_t res=0; res<2; res++){
426 sigRefoot[res] = Pedestal(sectorRef[0], sectorRef[1], res);
427 }
83347831 428 new(pdigit) AliZDCDigit(sectorRef, sigRefoot);
429 treeD->Fill();
698e394d 430 //Ch. debug
431 //printf("\t RefDigitoot added -> det = %d, quad = %d - digi[0,1] = [%d, %d]\n",
432 // sectorRef[0], sectorRef[1], sigRefoot[0], sigRefoot[1]); // Chiara debugging!
433
83347831 434 }
435 //printf("\t AliZDCDigitizer -> TreeD has %d entries\n",(Int_t) treeD->GetEntries());
436
8309c1ab 437 // write the output tree
438 loader->WriteDigits("OVERWRITE");
439 loader->UnloadDigits();
440}
441
442
25175f38 443//_____________________________________________________________________________
444void AliZDCDigitizer::ReadPMTGains()
445{
446// Read PMT gain from an external file
447
448 char *fname = gSystem->ExpandPathName("$ALICE_ROOT/ZDC/PMTGainsdata.txt");
449 FILE *fdata = fopen(fname,"r");
450 if(fdata==NULL){
451 AliWarning(" Can't open file $ALICE_ROOT/ZDC/PMTGainsdata.txt to read ZDC PMT Gains\n");
452 AliWarning(" -> ZDC signal will be pedestal!!!!!!!!!!!!\n\n");
453 return;
454 }
3d7e0d0c 455 int read=1;
25175f38 456 Float_t data[5];
457 Int_t beam[12], det[12];
458 Float_t gain[12], aEne[12], bEne[12];
459 for(int ir=0; ir<12; ir++){
460 for(int ic=0; ic<5; ic++){
3d7e0d0c 461 read = fscanf(fdata,"%f ",&data[ic]);
462 if(read==0) AliDebug(3, " Error in reading PMT gains from external file ");
25175f38 463 }
464 beam[ir] = data[0];
465 det[ir] = data[1];
466 gain[ir] = data[2];
467 aEne[ir] = data[3];
468 bEne[ir] = data[4];
469 }
3d7ab74d 470 fclose(fdata);
25175f38 471
472 if(((fBeamType.CompareTo("P-P")) == 0)){
473 for(int i=0; i<12; i++){
474 if(beam[i]==0 && fBeamEnergy!=0.){
475 if(det[i]!=31 && det[i]!=32){
476 for(Int_t j=0; j<5; j++) fPMGain[det[i]-1][j] = gain[i]*(aEne[i]/fBeamEnergy+bEne[i]);
477 }
478 else if(det[i] == 31) fPMGain[2][1] = gain[i]*(aEne[i]-fBeamEnergy*bEne[i]);
479 else if(det[i] == 32) fPMGain[2][2] = gain[i]*(aEne[i]-fBeamEnergy*bEne[i]);
480 }
481 }
482 //
0e9277fd 483 printf("\n AliZDCDigitizer::ReadPMTGains -> ZDC PMT gains for p-p @ %1.0f+%1.0f GeV: ZNC(%1.0f), ZPC(%1.0f), ZEM(%1.0f), ZNA(%1.0f) ZPA(%1.0f)\n",
484 fBeamEnergy, fBeamEnergy, fPMGain[0][0], fPMGain[1][0], fPMGain[2][1], fPMGain[3][0], fPMGain[4][0]);
25175f38 485 }
486 else if(((fBeamType.CompareTo("A-A")) == 0)){
487 for(int i=0; i<12; i++){
488 if(beam[i]==1){
489 Float_t scalGainFactor = fBeamEnergy/2760.;
490 if(det[i]!=31 && det[i]!=32){
491 for(Int_t j=0; j<5; j++) fPMGain[det[i]-1][j] = gain[i]/(aEne[i]*scalGainFactor);
492 }
493 else{
494 for(int iq=1; iq<3; iq++) fPMGain[2][iq] = gain[i]/(aEne[i]*scalGainFactor);
495 }
496 }
497 }
498 //
0e9277fd 499 printf("\n AliZDCDigitizer::ReadPMTGains -> ZDC PMT gains for Pb-Pb @ %1.0f+%1.0f A GeV: ZN(%1.0f), ZP(%1.0f), ZEM(%1.0f)\n",
500 fBeamEnergy, fBeamEnergy, fPMGain[0][0], fPMGain[1][0], fPMGain[2][1]);
25175f38 501 }
0e9277fd 502 else if(((fBeamType.CompareTo("p-A")) == 0) || ((fBeamType.CompareTo("P-A")) == 0)
503 || ((fBeamType.CompareTo("A-p")) == 0) || ((fBeamType.CompareTo("A-P")) == 0)){
25175f38 504 for(int i=0; i<12; i++){
505 if(beam[i]==0 && fBeamEnergy!=0.){
506 if(det[i]==1 || det[i]==2){
507 for(Int_t j=0; j<5; j++) fPMGain[det[i]-1][j] = gain[i]*(aEne[i]/fBeamEnergy+bEne[i]);
508 }
509 }
510 if(beam[i]==1){
511 Float_t scalGainFactor = fBeamEnergy/2760.;
512 Float_t npartScalingFactor = 208./15.;
513 if(det[i]==4 || det[i]==5){
514 for(Int_t j=0; j<5; j++) fPMGain[det[i]-1][j] = npartScalingFactor*gain[i]/(aEne[i]*scalGainFactor);
515 }
516 else if(det[i]==31 || det[i]==32){
517 for(int iq=1; iq<3; iq++) fPMGain[2][iq] = npartScalingFactor*gain[i]/(aEne[i]*scalGainFactor);
518 }
519 }
520 }
0e9277fd 521 printf("\n AliZDCDigitizer::ReadPMTGains -> ZDC PMT gains for p-Pb: ZNC(%1.0f), ZPC(%1.0f), ZEM(%1.0f), ZNA(%1.0f) ZPA(%1.0f)\n",
522 fPMGain[0][0], fPMGain[1][0], fPMGain[2][1], fPMGain[3][0], fPMGain[4][0]);
25175f38 523 }
524}
525
5d24ec95 526//_____________________________________________________________________________
527void AliZDCDigitizer::CalculatePMTGains()
528{
529// Calculate PMT gain according to beam type and beam energy
58b2fa8a 530 if( ((fBeamType.CompareTo("P-P")) == 0) || ((fBeamType.CompareTo("p-p"))) ){
5d24ec95 531 // PTM gains rescaled to beam energy for p-p
532 // New correction coefficients for PMT gains needed
533 // to reproduce experimental spectra (from Grazia Jul 2010)
534 if(fBeamEnergy != 0){
535 for(Int_t j = 0; j < 5; j++){
536 fPMGain[0][j] = 1.515831*(661.444/fBeamEnergy+0.000740671)*10000000;
537 fPMGain[1][j] = 0.674234*(864.350/fBeamEnergy+0.00234375)*10000000;
538 fPMGain[3][j] = 1.350938*(661.444/fBeamEnergy+0.000740671)*10000000;
539 fPMGain[4][j] = 0.678597*(864.350/fBeamEnergy+0.00234375)*10000000;
540 }
541 fPMGain[2][1] = 0.869654*(1.32312-0.000101515*fBeamEnergy)*10000000;
542 fPMGain[2][2] = 1.030883*(1.32312-0.000101515*fBeamEnergy)*10000000;
543 //
0e9277fd 544 printf("\n AliZDCDigitizer::CalculatePMTGains -> ZDC PMT gains for p-p @ %1.0f+%1.0f GeV: ZNC(%1.0f), ZPC(%1.0f), ZEM(%1.0f), ZNA(%1.0f) ZPA(%1.0f)\n",
545 fBeamEnergy, fBeamEnergy, fPMGain[0][0], fPMGain[1][0], fPMGain[2][1], fPMGain[3][0], fPMGain[4][0]);
5d24ec95 546
547 }
548 }
549 else if(((fBeamType.CompareTo("A-A")) == 0)){
550 // PTM gains for Pb-Pb @ 2.7+2.7 A TeV ***************
551 // rescaled for Pb-Pb @ 1.38+1.38 A TeV ***************
552 // Values corrected after 2010 Pb-Pb data taking (7/2/2011 - Ch.)
553 // Experimental data compared to EMD simulation for single nucleon peaks:
554 // ZN gains must be divided by 4, ZP gains by 10!
555 Float_t scalGainFactor = fBeamEnergy/2760.;
556 for(Int_t j = 0; j < 5; j++){
557 fPMGain[0][j] = 50000./(4*scalGainFactor); // ZNC
558 fPMGain[1][j] = 100000./(5*scalGainFactor); // ZPC
559 fPMGain[2][j] = 100000./scalGainFactor; // ZEM
560 fPMGain[3][j] = 50000./(4*scalGainFactor); // ZNA
561 fPMGain[4][j] = 100000./(5*scalGainFactor); // ZPA
562 }
0e9277fd 563 printf("\n AliZDCDigitizer::CalculatePMTGains -> ZDC PMT gains for Pb-Pb @ %1.0f+%1.0f A GeV: ZN(%1.0f), ZP(%1.0f), ZEM(%1.0f)\n",
564 fBeamEnergy, fBeamEnergy, fPMGain[0][0], fPMGain[1][0], fPMGain[2][1]);
5d24ec95 565 }
f6c61b40 566 else if(((fBeamType.CompareTo("p-A")) == 0) || ((fBeamType.CompareTo("P-A"))) ){
5d24ec95 567 // PTM gains for Pb-Pb @ 1.38+1.38 A TeV on side A
568 // PTM gains rescaled to beam energy for p-p on side C
569 // WARNING! Energies are set by hand for 2011 pA RUN!!!
312b8ed7 570 Float_t scalGainFactor = fBeamEnergy/2760.;
f6c61b40 571 Float_t npartScalingFactor = 208./15.;
5d24ec95 572
573 for(Int_t j = 0; j < 5; j++){
574 fPMGain[0][j] = 1.515831*(661.444/fBeamEnergy+0.000740671)*10000000; //ZNC (p)
575 fPMGain[1][j] = 0.674234*(864.350/fBeamEnergy+0.00234375)*10000000; //ZPC (p)
f6c61b40 576 fPMGain[2][j] = npartScalingFactor*100000./scalGainFactor; // ZEM (Pb)
312b8ed7 577 // Npart max scales from 400 in Pb-Pb to ~8 in pPb -> *40.
f6c61b40 578 fPMGain[3][j] = npartScalingFactor*50000/(4*scalGainFactor); // ZNA (Pb)
579 fPMGain[4][j] = npartScalingFactor*100000/(5*scalGainFactor); // ZPA (Pb)
5d24ec95 580 }
0e9277fd 581 printf("\n AliZDCDigitizer::CalculatePMTGains -> ZDC PMT gains for p-Pb: ZNC(%1.0f), ZPC(%1.0f), ZEM(%1.0f), ZNA(%1.0f) ZPA(%1.0f)\n",
582 fPMGain[0][0], fPMGain[1][0], fPMGain[2][1], fPMGain[3][0], fPMGain[4][0]);
5d24ec95 583 }
584}
585
8309c1ab 586//_____________________________________________________________________________
587void AliZDCDigitizer::Fragmentation(Float_t impPar, Int_t specN, Int_t specP,
588 Int_t &freeSpecN, Int_t &freeSpecP) const
589{
590// simulate fragmentation of spectators
591
8309c1ab 592 AliZDCFragment frag(impPar);
8309c1ab 593
594 // Fragments generation
92339a90 595 frag.GenerateIMF();
596 Int_t nAlpha = frag.GetNalpha();
8309c1ab 597
598 // Attach neutrons
98711e01 599 frag.AttachNeutrons();
92339a90 600 Int_t ztot = frag.GetZtot();
601 Int_t ntot = frag.GetNtot();
98711e01 602
603 // Removing fragments and alpha pcs
8309c1ab 604 freeSpecN = specN-ntot-2*nAlpha;
605 freeSpecP = specP-ztot-2*nAlpha;
98711e01 606
3848c666 607 // Removing deuterons
a0607c1f 608 Int_t ndeu = (Int_t) (freeSpecN*frag.DeuteronNumber());
3848c666 609 freeSpecN -= ndeu;
98711e01 610 freeSpecP -= ndeu;
3848c666 611 //
8309c1ab 612 if(freeSpecN<0) freeSpecN=0;
613 if(freeSpecP<0) freeSpecP=0;
614 AliDebug(2, Form("FreeSpn = %d, FreeSpp = %d", freeSpecN, freeSpecP));
615}
616
617//_____________________________________________________________________________
618void AliZDCDigitizer::SpectatorSignal(Int_t SpecType, Int_t numEvents,
fd9afd60 619 Float_t pm[5][5]) const
8309c1ab 620{
621// add signal of the spectators
fd9afd60 622
2d9c70ab 623 TFile *specSignalFile = TFile::Open("$ALICE_ROOT/ZDC/SpectatorSignal.root");
624 if(!specSignalFile || !specSignalFile->IsOpen()) {
625 AliError((" Opening file $ALICE_ROOT/ZDC/SpectatorSignal.root failed\n"));
626 return;
8309c1ab 627 }
2d9c70ab 628
e7eabc21 629 TNtuple* zdcSignal=0x0;
2d9c70ab 630
631 Float_t sqrtS = 2*fBeamEnergy;
632 //
633 if(TMath::Abs(sqrtS-5500) < 100.){
5d24ec95 634 AliInfo(" Extracting signal from SpectatorSignal/energy5500 ");
2d9c70ab 635 specSignalFile->cd("energy5500");
636 //
637 if(SpecType == 1) { // --- Signal for projectile spectator neutrons
638 specSignalFile->GetObject("energy5500/ZNCSignal;1",zdcSignal);
639 if(!zdcSignal) AliError(" PROBLEM!!! Can't retrieve ZNCSignal from SpectatorSignal.root file");
640 }
641 else if(SpecType == 2) { // --- Signal for projectile spectator protons
642 specSignalFile->GetObject("energy5500/ZPCSignal;1",zdcSignal);
643 if(!zdcSignal) AliError(" PROBLEM!!! Can't retrieve ZPCSignal from SpectatorSignal.root file");
644 }
645 else if(SpecType == 3) { // --- Signal for target spectator neutrons
646 specSignalFile->GetObject("energy5500/ZNASignal;1",zdcSignal);
647 if(!zdcSignal) AliError(" PROBLEM!!! Can't retrieve ZNASignal from SpectatorSignal.root file");
648 }
649 else if(SpecType == 4) { // --- Signal for target spectator protons
650 specSignalFile->GetObject("energy5500/ZPASignal;1",zdcSignal);
651 if(!zdcSignal) AliError(" PROBLEM!!! Can't retrieve ZPASignal from SpectatorSignal.root file");
652 }
fd9afd60 653 }
2d9c70ab 654 else if(TMath::Abs(sqrtS-2760) < 100.){
5d24ec95 655 AliInfo(" Extracting signal from SpectatorSignal/energy2760 ");
2d9c70ab 656 specSignalFile->cd("energy2760");
657 //
658 if(SpecType == 1) { // --- Signal for projectile spectator neutrons
659 specSignalFile->GetObject("energy2760/ZNCSignal;1",zdcSignal);
660 if(!zdcSignal) AliError(" PROBLEM!!! Can't retrieve ZNCSignal from SpectatorSignal.root file");
661 }
662 else if(SpecType == 2) { // --- Signal for projectile spectator protons
663 specSignalFile->GetObject("energy2760/ZPCSignal;1",zdcSignal);
664 if(!zdcSignal) AliError(" PROBLEM!!! Can't retrieve ZPCSignal from SpectatorSignal.root file");
665 }
666 else if(SpecType == 3) { // --- Signal for target spectator neutrons
667 specSignalFile->GetObject("energy2760/ZNASignal;1",zdcSignal);
668 if(!zdcSignal) AliError(" PROBLEM!!! Can't retrieve ZNASignal from SpectatorSignal.root file");
669 }
670 else if(SpecType == 4) { // --- Signal for target spectator protons
671 specSignalFile->GetObject("energy2760/ZPASignal;1",zdcSignal);
672 if(!zdcSignal) AliError(" PROBLEM!!! Can't retrieve ZPASignal from SpectatorSignal.root file");
673 }
fd9afd60 674 }
675
83534754 676 if(!zdcSignal){
677 printf("\n No spectator signal available for ZDC digitization\n");
678 return;
679 }
680
8309c1ab 681 Int_t nentries = (Int_t) zdcSignal->GetEntries();
682
fd9afd60 683 Float_t *entry;
684 Int_t pl, i, k, iev=0, rnd[125], volume[2];
48642b09 685 for(pl=0;pl<125;pl++) rnd[pl] = 0;
8574b308 686 if(numEvents > 125) {
fea9b334 687 AliDebug(2,Form("numEvents (%d) is larger than 125", numEvents));
8309c1ab 688 numEvents = 125;
689 }
690 for(pl=0;pl<numEvents;pl++){
691 rnd[pl] = (Int_t) (9999*gRandom->Rndm());
85a96223 692 if(rnd[pl] >= 9999) rnd[pl] = 9998;
8309c1ab 693 //printf(" rnd[%d] = %d\n",pl,rnd[pl]);
694 }
695 // Sorting vector in ascending order with C function QSORT
696 qsort((void*)rnd,numEvents,sizeof(Int_t),comp);
697 do{
698 for(i=0; i<nentries; i++){
699 zdcSignal->GetEvent(i);
700 entry = zdcSignal->GetArgs();
701 if(entry[0] == rnd[iev]){
702 for(k=0; k<2; k++) volume[k] = (Int_t) entry[k+1];
48642b09 703 //
fd9afd60 704 Float_t lightQ = entry[7];
705 Float_t lightC = entry[8];
706 //
acf9550c 707 if(volume[0] != 3) { // ZN or ZP
8309c1ab 708 pm[volume[0]-1][0] += lightC;
709 pm[volume[0]-1][volume[1]] += lightQ;
48642b09 710 //printf("\n pm[%d][0] = %.0f, pm[%d][%d] = %.0f\n",(volume[0]-1),pm[volume[0]-1][0],
711 // (volume[0]-1),volume[1],pm[volume[0]-1][volume[1]]);
712 }
713 else {
8574b308 714 if(volume[1] == 1) pm[2][1] += lightC; // ZEM 1
acf9550c 715 else pm[2][2] += lightQ; // ZEM 2
48642b09 716 //printf("\n pm[2][1] = %.0f, pm[2][2] = %.0f\n",pm[2][1],pm[2][2]);
717 }
8309c1ab 718 }
719 else if(entry[0] > rnd[iev]){
720 iev++;
721 continue;
722 }
723 }
724 }while(iev<numEvents);
725
2d9c70ab 726 specSignalFile->Close();
727 delete specSignalFile;
8309c1ab 728}
729
730
731//_____________________________________________________________________________
732Int_t AliZDCDigitizer::Phe2ADCch(Int_t Det, Int_t Quad, Float_t Light,
733 Int_t Res) const
734{
48642b09 735 // Evaluation of the ADC channel corresponding to the light yield Light
8a2624cc 736 Int_t vADCch = (Int_t) (Light * fPMGain[Det-1][Quad] * fADCRes[Res]);
698e394d 737 // Ch. debug
738 //printf("\t Phe2ADCch -> det %d quad %d - PMGain[%d][%d] %1.0f phe %1.2f ADC %d\n",
739 // Det,Quad,Det-1,Quad,fPMGain[Det-1][Quad],Light,vADCch);
7f73eb6b 740
8a2624cc 741 return vADCch;
48642b09 742}
8309c1ab 743
48642b09 744//_____________________________________________________________________________
745Int_t AliZDCDigitizer::Pedestal(Int_t Det, Int_t Quad, Int_t Res) const
746{
8a2624cc 747 // Returns a pedestal for detector det, PM quad, channel with res.
748 //
65b16e87 749 Float_t pedValue;
abf60186 750 // Normal run
751 if(fIsCalibration == 0){
c35ed519 752 Int_t index=0, kNch=24;
83347831 753 if(Quad!=5){
c35ed519 754 if(Det==1) index = Quad+kNch*Res; // ZNC
755 else if(Det==2) index = (Quad+5)+kNch*Res; // ZPC
756 else if(Det==3) index = (Quad+9)+kNch*Res; // ZEM
757 else if(Det==4) index = (Quad+12)+kNch*Res; // ZNA
758 else if(Det==5) index = (Quad+17)+kNch*Res; // ZPA
83347831 759 }
c35ed519 760 else index = (Det-1)/3+22+kNch*Res; // Reference PMs
83347831 761 //
c35ed519 762 Float_t meanPed = fPedData->GetMeanPed(index);
763 Float_t pedWidth = fPedData->GetMeanPedWidth(index);
65b16e87 764 pedValue = gRandom->Gaus(meanPed,pedWidth);
abf60186 765 //
58e12fee 766 /*printf("\t AliZDCDigitizer::Pedestal -> det %d quad %d res %d - Ped[%d] = %d\n",
65b16e87 767 Det, Quad, Res, index,(Int_t) pedValue); // Chiara debugging!
abf60186 768 */
769 }
7f73eb6b 770 // To create calibration object
83347831 771 else{
65b16e87 772 if(Res == 0) pedValue = gRandom->Gaus((35.+10.*gRandom->Rndm()),(0.5+0.2*gRandom->Rndm())); //High gain
773 else pedValue = gRandom->Gaus((250.+100.*gRandom->Rndm()),(3.5+2.*gRandom->Rndm())); //Low gain
83347831 774 }
dbc8d7fc 775
65b16e87 776 return (Int_t) pedValue;
8309c1ab 777}
778
779//_____________________________________________________________________________
78d18275 780AliCDBStorage* AliZDCDigitizer::SetStorage(const char *uri)
8309c1ab 781{
8309c1ab 782
78d18275 783 Bool_t deleteManager = kFALSE;
48642b09 784
78d18275 785 AliCDBManager *manager = AliCDBManager::Instance();
786 AliCDBStorage *defstorage = manager->GetDefaultStorage();
48642b09 787
78d18275 788 if(!defstorage || !(defstorage->Contains("ZDC"))){
789 AliWarning("No default storage set or default storage doesn't contain ZDC!");
790 manager->SetDefaultStorage(uri);
791 deleteManager = kTRUE;
792 }
793
794 AliCDBStorage *storage = manager->GetDefaultStorage();
795
796 if(deleteManager){
797 AliCDBManager::Instance()->UnsetDefaultStorage();
798 defstorage = 0; // the storage is killed by AliCDBManager::Instance()->Destroy()
799 }
800
801 return storage;
802}
48642b09 803
78d18275 804//_____________________________________________________________________________
6024ec85 805AliZDCPedestals* AliZDCDigitizer::GetPedData() const
806{
807
808 // Getting pedestal calibration object for ZDC set
809
810 AliCDBEntry *entry = AliCDBManager::Instance()->Get("ZDC/Calib/Pedestals");
811 if(!entry) AliFatal("No calibration data loaded!");
812
813 AliZDCPedestals *calibdata = dynamic_cast<AliZDCPedestals*> (entry->GetObject());
814 if(!calibdata) AliFatal("Wrong calibration object in calibration file!");
815
816 return calibdata;
817}
f91d1e35 818