/************************************************************************** * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * * * * Author: The ALICE Off-line Project. * * Contributors are mentioned in the code where appropriate. * * * * Permission to use, copy, modify and distribute this software and its * * documentation strictly for non-commercial purposes is hereby granted * * without fee, provided that the above copyright notice appears in all * * copies and that both the copyright notice and this permission notice * * appear in the supporting documentation. The authors make no claims * * about the suitability of this software for any purpose. It is * * provided "as is" without express or implied warranty. * **************************************************************************/ /* $Id$ */ /////////////////////////////////////////////////////////////////////////////// // // // ZDC digitizer class // // // /////////////////////////////////////////////////////////////////////////////// // --- Standard libraries #include #include // --- ROOT system #include #include #include #include // --- AliRoot header files #include "AliRun.h" #include "AliHeader.h" #include "AliGenHijingEventHeader.h" #include "AliGenCocktailEventHeader.h" #include "AliDigitizationInput.h" #include "AliRunLoader.h" #include "AliLoader.h" #include "AliGRPObject.h" #include "AliCDBManager.h" #include "AliCDBEntry.h" #include "AliZDCSDigit.h" #include "AliZDCDigit.h" #include "AliZDCFragment.h" #include "AliZDCv3.h" #include "AliZDCDigitizer.h" class AliCDBStorage; class AliZDCPedestals; ClassImp(AliZDCDigitizer) //____________________________________________________________________________ AliZDCDigitizer::AliZDCDigitizer() : fIsCalibration(0), fIsSignalInADCGate(kFALSE), fFracLostSignal(0.), fPedData(0), fSpectators2Track(kFALSE), fBeamEnergy(0.), fBeamType(""), fIspASystem(kFALSE), fIsRELDISgen(kFALSE) { // Default constructor for(Int_t i=0; i<2; i++) fADCRes[i]=0.; } //____________________________________________________________________________ AliZDCDigitizer::AliZDCDigitizer(AliDigitizationInput* digInput): AliDigitizer(digInput), fIsCalibration(0), //By default the simulation doesn't create calib. data fIsSignalInADCGate(kFALSE), fFracLostSignal(0.), fPedData(GetPedData()), fSpectators2Track(kFALSE), fBeamEnergy(0.), fBeamType(""), fIspASystem(kFALSE), fIsRELDISgen(kFALSE) { // Get calibration data if(fIsCalibration!=0) printf("\n\t AliZDCDigitizer -> Creating calibration data (pedestals)\n"); for(Int_t i=0; i<5; i++){ for(Int_t j=0; j<5; j++) fPMGain[i][j] = 0.; } } //____________________________________________________________________________ AliZDCDigitizer::~AliZDCDigitizer() { // Destructor // Not implemented } //____________________________________________________________________________ AliZDCDigitizer::AliZDCDigitizer(const AliZDCDigitizer &digitizer): AliDigitizer(), fIsCalibration(digitizer.fIsCalibration), fIsSignalInADCGate(digitizer.fIsSignalInADCGate), fFracLostSignal(digitizer.fFracLostSignal), fPedData(digitizer.fPedData), fSpectators2Track(digitizer.fSpectators2Track), fBeamEnergy(digitizer.fBeamEnergy), fBeamType(digitizer.fBeamType), fIspASystem(digitizer.fIspASystem), fIsRELDISgen(digitizer.fIsRELDISgen) { // Copy constructor for(Int_t i=0; i<5; i++){ for(Int_t j=0; j<5; j++){ fPMGain[i][j] = digitizer.fPMGain[i][j]; } } for(Int_t i=0; i<2; i++) fADCRes[i] = digitizer.fADCRes[i]; } //____________________________________________________________________________ Bool_t AliZDCDigitizer::Init() { // Initialize the digitizer //printf(" **** Initializing AliZDCDigitizer fBeamEnergy = %1.0f GeV\n\n", fBeamEnergy); AliCDBEntry* entry = AliCDBManager::Instance()->Get("GRP/GRP/Data"); if(!entry) AliFatal("No calibration data loaded!"); AliGRPObject* grpData = 0x0; if(entry){ TMap* m = dynamic_cast(entry->GetObject()); // old GRP entry if(m){ //m->Print(); grpData = new AliGRPObject(); grpData->ReadValuesFromMap(m); } else{ grpData = dynamic_cast(entry->GetObject()); // new GRP entry } entry->SetOwner(0); AliCDBManager::Instance()->UnloadFromCache("GRP/GRP/Data"); } if(!grpData){ AliError("No GRP entry found in OCDB! \n "); return kFALSE; } fBeamType = grpData->GetBeamType(); if(fBeamType==AliGRPObject::GetInvalidString()){ AliError("\t UNKNOWN beam type from GRP obj -> PMT gains not set in ZDC digitizer!!!\n"); } // If beam energy is not set from Config.C (RELDIS / spectator generators) if(fBeamEnergy<0.01){ fBeamEnergy = grpData->GetBeamEnergy(); if(fBeamEnergy==AliGRPObject::GetInvalidFloat()){ AliWarning("GRP/GRP/Data entry: missing value for the beam energy ! Using 0."); AliError("\t UNKNOWN beam type from GRP obj -> PMT gains not set in ZDC digitizer!!!\n"); fBeamEnergy = 0.; } } /*if(fIspASystem){ fBeamType = "p-A"; AliInfo(" AliZDCDigitizer -> Manually setting beam type to p-A\n"); }*/ // Setting beam type for spectator generator and RELDIS generator if(((fBeamType.CompareTo("UNKNOWN")) == 0) || fIsRELDISgen){ fBeamType = "A-A"; AliInfo(" AliZDCDigitizer -> Manually setting beam type to A-A\n"); } printf("\t AliZDCDigitizer -> beam type %s - beam energy = %f GeV\n", fBeamType.Data(), fBeamEnergy); if(fBeamEnergy>0.1){ ReadPMTGains(); //CalculatePMTGains(); } else{ AliWarning("\n Beam energy is 0 -> ZDC PMT gains can't be set -> NO ZDC DIGITS!!!\n"); } // ADC Caen V965 fADCRes[0] = 0.0000008; // ADC Resolution high gain: 200 fC/adcCh fADCRes[1] = 0.0000064; // ADC Resolution low gain: 25 fC/adcCh return kTRUE; } //____________________________________________________________________________ void AliZDCDigitizer::Digitize(Option_t* /*option*/) { // Execute digitization // ------------------------------------------------------------ // !!! 2nd ZDC set added // *** 1st 3 arrays are digits from REAL (simulated) hits // *** last 2 are copied from simulated digits // --- pm[0][...] = light in ZN side C [C, Q1, Q2, Q3, Q4] // --- pm[1][...] = light in ZP side C [C, Q1, Q2, Q3, Q4] // --- pm[2][...] = light in ZEM [x, 1, 2, x, x] // --- pm[3][...] = light in ZN side A [C, Q1, Q2, Q3, Q4] ->NEW! // --- pm[4][...] = light in ZP side A [C, Q1, Q2, Q3, Q4] ->NEW! // ------------------------------------------------------------ Float_t pm[5][5]; for(Int_t iSector1=0; iSector1<5; iSector1++) for(Int_t iSector2=0; iSector2<5; iSector2++){ pm[iSector1][iSector2] = 0; } // ------------------------------------------------------------ // ### Out of time ADC added (22 channels) // --- same codification as for signal PTMs (see above) // ------------------------------------------------------------ // Float_t pmoot[5][5]; // for(Int_t iSector1=0; iSector1<5; iSector1++) // for(Int_t iSector2=0; iSector2<5; iSector2++){ // pmoot[iSector1][iSector2] = 0; // } // impact parameter and number of spectators Float_t impPar = 0; Int_t specNTarg = 0, specPTarg = 0; Int_t specNProj = 0, specPProj = 0; Float_t signalTime0 = 0.; // loop over input streams for(Int_t iInput = 0; iInputGetNinputs(); iInput++){ // get run loader and ZDC loader AliRunLoader* runLoader = AliRunLoader::GetRunLoader(fDigInput->GetInputFolderName(iInput)); AliLoader* loader = runLoader->GetLoader("ZDCLoader"); if(!loader) continue; // load sdigits loader->LoadSDigits(); TTree* treeS = loader->TreeS(); if(!treeS) continue; AliZDCSDigit sdigit; AliZDCSDigit* psdigit = &sdigit; treeS->SetBranchAddress("ZDC", &psdigit); // loop over sdigits for(Int_t iSDigit=0; iSDigitGetEntries(); iSDigit++){ treeS->GetEntry(iSDigit); // if(!psdigit) continue; if((sdigit.GetSector(1) < 0) || (sdigit.GetSector(1) > 4)){ AliError(Form("\nsector[0] = %d, sector[1] = %d\n", sdigit.GetSector(0), sdigit.GetSector(1))); continue; } // Checking if signal is inside ADC gate if(iSDigit==0) signalTime0 = sdigit.GetTrackTime(); else{ // Assuming a signal lenght of 20 ns, signal is in gate if // signal ENDS in signalTime0+50. -> sdigit.GetTrackTime()+20<=signalTime0+50. if(sdigit.GetTrackTime()<=signalTime0+30.) fIsSignalInADCGate = kTRUE; if(sdigit.GetTrackTime()>signalTime0+30.){ fIsSignalInADCGate = kFALSE; // Vedi quaderno per spiegazione approx. usata nel calcolo della fraz. di segnale perso fFracLostSignal = (sdigit.GetTrackTime()-30)*(sdigit.GetTrackTime()-30)/280.; } } Float_t sdSignal = sdigit.GetLightPM(); if(fIsSignalInADCGate == kFALSE){ AliDebug(2,Form("\t Signal time %f -> fraction %f of ZDC signal for det.(%d, %d) out of ADC gate\n", sdigit.GetTrackTime(),fFracLostSignal,sdigit.GetSector(0),sdigit.GetSector(1))); sdSignal = (1-fFracLostSignal)*sdSignal; } pm[(sdigit.GetSector(0))-1][sdigit.GetSector(1)] += sdigit.GetLightPM(); //Ch. debug /*printf("\t Detector %d, Tower %d -> pm[%d][%d] = %.0f \n", sdigit.GetSector(0), sdigit.GetSector(1),sdigit.GetSector(0)-1, sdigit.GetSector(1), pm[sdigit.GetSector(0)-1][sdigit.GetSector(1)]); */ } loader->UnloadSDigits(); // get the impact parameter and the number of spectators in case of hijing if(!runLoader->GetAliRun()) runLoader->LoadgAlice(); AliHeader* header = runLoader->GetHeader(); if(!header) continue; AliGenEventHeader* genHeader = header->GenEventHeader(); if(!genHeader) continue; AliGenHijingEventHeader *hijingHeader = 0; if(genHeader->InheritsFrom(AliGenHijingEventHeader::Class())) hijingHeader = dynamic_cast (genHeader); else if(genHeader->InheritsFrom(AliGenCocktailEventHeader::Class())){ TList* listOfHeaders = ((AliGenCocktailEventHeader*) genHeader)->GetHeaders(); if(listOfHeaders) hijingHeader = dynamic_cast (listOfHeaders->FindObject("Hijing")); else{ AliWarning(" No list of headers from generator -> skipping event\n"); continue; } } if(!hijingHeader) continue; if(fSpectators2Track==kTRUE){ impPar = hijingHeader->ImpactParameter(); specNProj = hijingHeader->ProjSpectatorsn(); specPProj = hijingHeader->ProjSpectatorsp(); specNTarg = hijingHeader->TargSpectatorsn(); specPTarg = hijingHeader->TargSpectatorsp(); AliInfo(Form("\t AliZDCDigitizer: b = %1.2f fm\n" " \t PROJECTILE: #spectator n %d, #spectator p %d\n" " \t TARGET: #spectator n %d, #spectator p %d\n", impPar, specNProj, specPProj, specNTarg, specPTarg)); // Applying fragmentation algorithm and adding spectator signal Int_t freeSpecNProj=0, freeSpecPProj=0; if(specNProj!=0 || specPProj!=0) Fragmentation(impPar, specNProj, specPProj, freeSpecNProj, freeSpecPProj); Int_t freeSpecNTarg=0, freeSpecPTarg=0; if(specNTarg!=0 || specPTarg!=0) Fragmentation(impPar, specNTarg, specPTarg, freeSpecNTarg, freeSpecPTarg); if(freeSpecNProj!=0) SpectatorSignal(1, freeSpecNProj, pm); if(freeSpecPProj!=0) SpectatorSignal(2, freeSpecPProj, pm); AliInfo(Form("\t AliZDCDigitizer -> Adding spectator signal for PROJECTILE: %d free n and %d free p\n",freeSpecNProj,freeSpecPProj)); if(freeSpecNTarg!=0) SpectatorSignal(3, freeSpecNTarg, pm); if(freeSpecPTarg!=0) SpectatorSignal(4, freeSpecPTarg, pm); AliInfo(Form("\t AliZDCDigitizer -> Adding spectator signal for TARGET: %d free n and %d free p\n",freeSpecNTarg,freeSpecPTarg)); } } // get the output run loader and loader AliRunLoader* runLoader = AliRunLoader::GetRunLoader(fDigInput->GetOutputFolderName()); AliLoader* loader = runLoader->GetLoader("ZDCLoader"); if(!loader) { AliError("no ZDC loader found"); return; } // create the output tree const char* mode = "update"; if(runLoader->GetEventNumber() == 0) mode = "recreate"; loader->LoadDigits(mode); loader->MakeTree("D"); TTree* treeD = loader->TreeD(); AliZDCDigit digit; AliZDCDigit* pdigit = &digit; const Int_t kBufferSize = 4000; treeD->Branch("ZDC", "AliZDCDigit", &pdigit, kBufferSize); // Create digits Int_t sector[2]; Int_t digi[2], digioot[2]; for(sector[0]=1; sector[0]<6; sector[0]++){ for(sector[1]=0; sector[1]<5; sector[1]++){ if((sector[0]==3) && ((sector[1]<1) || (sector[1]>2))) continue; for(Int_t res=0; res<2; res++){ digi[res] = Phe2ADCch(sector[0], sector[1], pm[sector[0]-1][sector[1]], res) + Pedestal(sector[0], sector[1], res); } new(pdigit) AliZDCDigit(sector, digi); treeD->Fill(); //Ch. debug //printf("\t DIGIT added -> det %d quad %d - digi[0,1] = [%d, %d]\n", // sector[0], sector[1], digi[0], digi[1]); // Chiara debugging! } } // Loop over detector // Adding in-time digits for 2 reference PTM signals (after signal ch.) // (for the moment the ref. signal is completely invented assuming a PMgain of 5*10^4!) Int_t sectorRef[2]; sectorRef[1] = 5; Int_t sigRef[2]; // Reference signal are set to 100 (high gain chain) and 800 (low gain chain) if(fIsCalibration==0) {sigRef[0]=100; sigRef[1]=800;} else {sigRef[0]=0; sigRef[1]=0;} // calibration -> simulation of pedestal values // for(Int_t iref=0; iref<2; iref++){ sectorRef[0] = 3*iref+1; for(Int_t res=0; res<2; res++){ sigRef[res] += Pedestal(sectorRef[0], sectorRef[1], res); } new(pdigit) AliZDCDigit(sectorRef, sigRef); treeD->Fill(); //Ch. debug //printf("\t RefDigit added -> det = %d, quad = %d - digi[0,1] = [%d, %d]\n", // sectorRef[0], sectorRef[1], sigRef[0], sigRef[1]); // Chiara debugging! } // // --- Adding digits for out-of-time channels after signal digits for(sector[0]=1; sector[0]<6; sector[0]++){ for(sector[1]=0; sector[1]<5; sector[1]++){ if((sector[0]==3) && ((sector[1]<1) || (sector[1]>2))) continue; for(Int_t res=0; res<2; res++){ digioot[res] = Pedestal(sector[0], sector[1], res); // out-of-time ADCs } new(pdigit) AliZDCDigit(sector, digioot); treeD->Fill(); //Ch. debug //printf("\t DIGIToot added -> det = %d, quad = %d - digi[0,1] = [%d, %d]\n", // sector[0], sector[1], digioot[0], digioot[1]); // Chiara debugging! } } // Adding out-of-time digits for 2 reference PTM signals (after out-of-time ch.) Int_t sigRefoot[2]; for(Int_t iref=0; iref<2; iref++){ sectorRef[0] = 3*iref+1; for(Int_t res=0; res<2; res++){ sigRefoot[res] = Pedestal(sectorRef[0], sectorRef[1], res); } new(pdigit) AliZDCDigit(sectorRef, sigRefoot); treeD->Fill(); //Ch. debug //printf("\t RefDigitoot added -> det = %d, quad = %d - digi[0,1] = [%d, %d]\n", // sectorRef[0], sectorRef[1], sigRefoot[0], sigRefoot[1]); // Chiara debugging! } //printf("\t AliZDCDigitizer -> TreeD has %d entries\n",(Int_t) treeD->GetEntries()); // write the output tree loader->WriteDigits("OVERWRITE"); loader->UnloadDigits(); } //_____________________________________________________________________________ void AliZDCDigitizer::ReadPMTGains() { // Read PMT gain from an external file char *fname = gSystem->ExpandPathName("$ALICE_ROOT/ZDC/PMTGainsdata.txt"); FILE *fdata = fopen(fname,"r"); if(fdata==NULL){ AliWarning(" Can't open file $ALICE_ROOT/ZDC/PMTGainsdata.txt to read ZDC PMT Gains\n"); AliWarning(" -> ZDC signal will be pedestal!!!!!!!!!!!!\n\n"); return; } int read=1; Float_t data[5]; Int_t beam[12], det[12]; Float_t gain[12], aEne[12], bEne[12]; for(int ir=0; ir<12; ir++){ for(int ic=0; ic<5; ic++){ read = fscanf(fdata,"%f ",&data[ic]); if(read==0) AliDebug(3, " Error in reading PMT gains from external file "); } beam[ir] = data[0]; det[ir] = data[1]; gain[ir] = data[2]; aEne[ir] = data[3]; bEne[ir] = data[4]; } fclose(fdata); if(((fBeamType.CompareTo("P-P")) == 0)){ for(int i=0; i<12; i++){ if(beam[i]==0 && fBeamEnergy!=0.){ if(det[i]!=31 && det[i]!=32){ for(Int_t j=0; j<5; j++) fPMGain[det[i]-1][j] = gain[i]*(aEne[i]/fBeamEnergy+bEne[i]); } else if(det[i] == 31) fPMGain[2][1] = gain[i]*(aEne[i]-fBeamEnergy*bEne[i]); else if(det[i] == 32) fPMGain[2][2] = gain[i]*(aEne[i]-fBeamEnergy*bEne[i]); } } // AliInfo(Form("\n 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", fBeamEnergy, fBeamEnergy, fPMGain[0][0], fPMGain[1][0], fPMGain[2][1], fPMGain[3][0], fPMGain[4][0])); } else if(((fBeamType.CompareTo("A-A")) == 0)){ for(int i=0; i<12; i++){ if(beam[i]==1){ Float_t scalGainFactor = fBeamEnergy/2760.; if(det[i]!=31 && det[i]!=32){ for(Int_t j=0; j<5; j++) fPMGain[det[i]-1][j] = gain[i]/(aEne[i]*scalGainFactor); } else{ for(int iq=1; iq<3; iq++) fPMGain[2][iq] = gain[i]/(aEne[i]*scalGainFactor); } } } // AliInfo(Form("\n ZDC PMT gains for Pb-Pb @ %1.0f+%1.0f A GeV: ZN(%1.0f), ZP(%1.0f), ZEM(%1.0f)\n", fBeamEnergy, fBeamEnergy, fPMGain[0][0], fPMGain[1][0], fPMGain[2][1])); } else if(((fBeamType.CompareTo("p-A")) == 0) || ((fBeamType.CompareTo("P-A")) == 0)){ for(int i=0; i<12; i++){ if(beam[i]==0 && fBeamEnergy!=0.){ if(det[i]==1 || det[i]==2){ for(Int_t j=0; j<5; j++) fPMGain[det[i]-1][j] = gain[i]*(aEne[i]/fBeamEnergy+bEne[i]); } } if(beam[i]==1){ Float_t scalGainFactor = fBeamEnergy/2760.; Float_t npartScalingFactor = 208./15.; if(det[i]==4 || det[i]==5){ for(Int_t j=0; j<5; j++) fPMGain[det[i]-1][j] = npartScalingFactor*gain[i]/(aEne[i]*scalGainFactor); } else if(det[i]==31 || det[i]==32){ for(int iq=1; iq<3; iq++) fPMGain[2][iq] = npartScalingFactor*gain[i]/(aEne[i]*scalGainFactor); } } } AliInfo(Form("\n ZDC PMT gains for p-Pb: ZNC(%1.0f), ZPC(%1.0f), ZEM(%1.0f), ZNA(%1.0f) ZPA(%1.0f)\n", fPMGain[0][0], fPMGain[1][0], fPMGain[2][1], fPMGain[3][0], fPMGain[4][0])); } } //_____________________________________________________________________________ void AliZDCDigitizer::CalculatePMTGains() { // Calculate PMT gain according to beam type and beam energy if( ((fBeamType.CompareTo("P-P")) == 0) || ((fBeamType.CompareTo("p-p"))) ){ // PTM gains rescaled to beam energy for p-p // New correction coefficients for PMT gains needed // to reproduce experimental spectra (from Grazia Jul 2010) if(fBeamEnergy != 0){ for(Int_t j = 0; j < 5; j++){ fPMGain[0][j] = 1.515831*(661.444/fBeamEnergy+0.000740671)*10000000; fPMGain[1][j] = 0.674234*(864.350/fBeamEnergy+0.00234375)*10000000; fPMGain[3][j] = 1.350938*(661.444/fBeamEnergy+0.000740671)*10000000; fPMGain[4][j] = 0.678597*(864.350/fBeamEnergy+0.00234375)*10000000; } fPMGain[2][1] = 0.869654*(1.32312-0.000101515*fBeamEnergy)*10000000; fPMGain[2][2] = 1.030883*(1.32312-0.000101515*fBeamEnergy)*10000000; // AliInfo(Form("\n 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", fBeamEnergy, fBeamEnergy, fPMGain[0][0], fPMGain[1][0], fPMGain[2][1], fPMGain[3][0], fPMGain[4][0])); } } else if(((fBeamType.CompareTo("A-A")) == 0)){ // PTM gains for Pb-Pb @ 2.7+2.7 A TeV *************** // rescaled for Pb-Pb @ 1.38+1.38 A TeV *************** // Values corrected after 2010 Pb-Pb data taking (7/2/2011 - Ch.) // Experimental data compared to EMD simulation for single nucleon peaks: // ZN gains must be divided by 4, ZP gains by 10! Float_t scalGainFactor = fBeamEnergy/2760.; for(Int_t j = 0; j < 5; j++){ fPMGain[0][j] = 50000./(4*scalGainFactor); // ZNC fPMGain[1][j] = 100000./(5*scalGainFactor); // ZPC fPMGain[2][j] = 100000./scalGainFactor; // ZEM fPMGain[3][j] = 50000./(4*scalGainFactor); // ZNA fPMGain[4][j] = 100000./(5*scalGainFactor); // ZPA } AliInfo(Form("\n ZDC PMT gains for Pb-Pb @ %1.0f+%1.0f A GeV: ZN(%1.0f), ZP(%1.0f), ZEM(%1.0f)\n", fBeamEnergy, fBeamEnergy, fPMGain[0][0], fPMGain[1][0], fPMGain[2][1])); } else if(((fBeamType.CompareTo("p-A")) == 0) || ((fBeamType.CompareTo("P-A"))) ){ // PTM gains for Pb-Pb @ 1.38+1.38 A TeV on side A // PTM gains rescaled to beam energy for p-p on side C // WARNING! Energies are set by hand for 2011 pA RUN!!! Float_t scalGainFactor = fBeamEnergy/2760.; Float_t npartScalingFactor = 208./15.; for(Int_t j = 0; j < 5; j++){ fPMGain[0][j] = 1.515831*(661.444/fBeamEnergy+0.000740671)*10000000; //ZNC (p) fPMGain[1][j] = 0.674234*(864.350/fBeamEnergy+0.00234375)*10000000; //ZPC (p) fPMGain[2][j] = npartScalingFactor*100000./scalGainFactor; // ZEM (Pb) // Npart max scales from 400 in Pb-Pb to ~8 in pPb -> *40. fPMGain[3][j] = npartScalingFactor*50000/(4*scalGainFactor); // ZNA (Pb) fPMGain[4][j] = npartScalingFactor*100000/(5*scalGainFactor); // ZPA (Pb) } AliInfo(Form("\n ZDC PMT gains for p-Pb: ZNC(%1.0f), ZPC(%1.0f), ZEM(%1.0f), ZNA(%1.0f) ZPA(%1.0f)\n", fPMGain[0][0], fPMGain[1][0], fPMGain[2][1], fPMGain[3][0], fPMGain[4][0])); } } //_____________________________________________________________________________ void AliZDCDigitizer::Fragmentation(Float_t impPar, Int_t specN, Int_t specP, Int_t &freeSpecN, Int_t &freeSpecP) const { // simulate fragmentation of spectators AliZDCFragment frag(impPar); // Fragments generation frag.GenerateIMF(); Int_t nAlpha = frag.GetNalpha(); // Attach neutrons frag.AttachNeutrons(); Int_t ztot = frag.GetZtot(); Int_t ntot = frag.GetNtot(); // Removing fragments and alpha pcs freeSpecN = specN-ntot-2*nAlpha; freeSpecP = specP-ztot-2*nAlpha; // Removing deuterons Int_t ndeu = (Int_t) (freeSpecN*frag.DeuteronNumber()); freeSpecN -= ndeu; freeSpecP -= ndeu; // if(freeSpecN<0) freeSpecN=0; if(freeSpecP<0) freeSpecP=0; AliDebug(2, Form("FreeSpn = %d, FreeSpp = %d", freeSpecN, freeSpecP)); } //_____________________________________________________________________________ void AliZDCDigitizer::SpectatorSignal(Int_t SpecType, Int_t numEvents, Float_t pm[5][5]) const { // add signal of the spectators TFile *specSignalFile = TFile::Open("$ALICE_ROOT/ZDC/SpectatorSignal.root"); if(!specSignalFile || !specSignalFile->IsOpen()) { AliError((" Opening file $ALICE_ROOT/ZDC/SpectatorSignal.root failed\n")); return; } TNtuple* zdcSignal=0x0; Float_t sqrtS = 2*fBeamEnergy; // if(TMath::Abs(sqrtS-5500) < 100.){ AliInfo(" Extracting signal from SpectatorSignal/energy5500 "); specSignalFile->cd("energy5500"); // if(SpecType == 1) { // --- Signal for projectile spectator neutrons specSignalFile->GetObject("energy5500/ZNCSignal;1",zdcSignal); if(!zdcSignal) AliError(" PROBLEM!!! Can't retrieve ZNCSignal from SpectatorSignal.root file"); } else if(SpecType == 2) { // --- Signal for projectile spectator protons specSignalFile->GetObject("energy5500/ZPCSignal;1",zdcSignal); if(!zdcSignal) AliError(" PROBLEM!!! Can't retrieve ZPCSignal from SpectatorSignal.root file"); } else if(SpecType == 3) { // --- Signal for target spectator neutrons specSignalFile->GetObject("energy5500/ZNASignal;1",zdcSignal); if(!zdcSignal) AliError(" PROBLEM!!! Can't retrieve ZNASignal from SpectatorSignal.root file"); } else if(SpecType == 4) { // --- Signal for target spectator protons specSignalFile->GetObject("energy5500/ZPASignal;1",zdcSignal); if(!zdcSignal) AliError(" PROBLEM!!! Can't retrieve ZPASignal from SpectatorSignal.root file"); } } else if(TMath::Abs(sqrtS-2760) < 100.){ AliInfo(" Extracting signal from SpectatorSignal/energy2760 "); specSignalFile->cd("energy2760"); // if(SpecType == 1) { // --- Signal for projectile spectator neutrons specSignalFile->GetObject("energy2760/ZNCSignal;1",zdcSignal); if(!zdcSignal) AliError(" PROBLEM!!! Can't retrieve ZNCSignal from SpectatorSignal.root file"); } else if(SpecType == 2) { // --- Signal for projectile spectator protons specSignalFile->GetObject("energy2760/ZPCSignal;1",zdcSignal); if(!zdcSignal) AliError(" PROBLEM!!! Can't retrieve ZPCSignal from SpectatorSignal.root file"); } else if(SpecType == 3) { // --- Signal for target spectator neutrons specSignalFile->GetObject("energy2760/ZNASignal;1",zdcSignal); if(!zdcSignal) AliError(" PROBLEM!!! Can't retrieve ZNASignal from SpectatorSignal.root file"); } else if(SpecType == 4) { // --- Signal for target spectator protons specSignalFile->GetObject("energy2760/ZPASignal;1",zdcSignal); if(!zdcSignal) AliError(" PROBLEM!!! Can't retrieve ZPASignal from SpectatorSignal.root file"); } } if(!zdcSignal){ printf("\n No spectator signal available for ZDC digitization\n"); return; } Int_t nentries = (Int_t) zdcSignal->GetEntries(); Float_t *entry; Int_t pl, i, k, iev=0, rnd[125], volume[2]; for(pl=0;pl<125;pl++) rnd[pl] = 0; if(numEvents > 125) { AliDebug(2,Form("numEvents (%d) is larger than 125", numEvents)); numEvents = 125; } for(pl=0;plRndm()); if(rnd[pl] >= 9999) rnd[pl] = 9998; //printf(" rnd[%d] = %d\n",pl,rnd[pl]); } // Sorting vector in ascending order with C function QSORT qsort((void*)rnd,numEvents,sizeof(Int_t),comp); do{ for(i=0; iGetEvent(i); entry = zdcSignal->GetArgs(); if(entry[0] == rnd[iev]){ for(k=0; k<2; k++) volume[k] = (Int_t) entry[k+1]; // Float_t lightQ = entry[7]; Float_t lightC = entry[8]; // if(volume[0] != 3) { // ZN or ZP pm[volume[0]-1][0] += lightC; pm[volume[0]-1][volume[1]] += lightQ; //printf("\n pm[%d][0] = %.0f, pm[%d][%d] = %.0f\n",(volume[0]-1),pm[volume[0]-1][0], // (volume[0]-1),volume[1],pm[volume[0]-1][volume[1]]); } else { if(volume[1] == 1) pm[2][1] += lightC; // ZEM 1 else pm[2][2] += lightQ; // ZEM 2 //printf("\n pm[2][1] = %.0f, pm[2][2] = %.0f\n",pm[2][1],pm[2][2]); } } else if(entry[0] > rnd[iev]){ iev++; continue; } } }while(ievClose(); delete specSignalFile; } //_____________________________________________________________________________ Int_t AliZDCDigitizer::Phe2ADCch(Int_t Det, Int_t Quad, Float_t Light, Int_t Res) const { // Evaluation of the ADC channel corresponding to the light yield Light Int_t vADCch = (Int_t) (Light * fPMGain[Det-1][Quad] * fADCRes[Res]); // Ch. debug //printf("\t Phe2ADCch -> det %d quad %d - PMGain[%d][%d] %1.0f phe %1.2f ADC %d\n", // Det,Quad,Det-1,Quad,fPMGain[Det-1][Quad],Light,vADCch); return vADCch; } //_____________________________________________________________________________ Int_t AliZDCDigitizer::Pedestal(Int_t Det, Int_t Quad, Int_t Res) const { // Returns a pedestal for detector det, PM quad, channel with res. // Float_t pedValue; // Normal run if(fIsCalibration == 0){ Int_t index=0, kNch=24; if(Quad!=5){ if(Det==1) index = Quad+kNch*Res; // ZNC else if(Det==2) index = (Quad+5)+kNch*Res; // ZPC else if(Det==3) index = (Quad+9)+kNch*Res; // ZEM else if(Det==4) index = (Quad+12)+kNch*Res; // ZNA else if(Det==5) index = (Quad+17)+kNch*Res; // ZPA } else index = (Det-1)/3+22+kNch*Res; // Reference PMs // Float_t meanPed = fPedData->GetMeanPed(index); Float_t pedWidth = fPedData->GetMeanPedWidth(index); pedValue = gRandom->Gaus(meanPed,pedWidth); // /*printf("\t AliZDCDigitizer::Pedestal -> det %d quad %d res %d - Ped[%d] = %d\n", Det, Quad, Res, index,(Int_t) pedValue); // Chiara debugging! */ } // To create calibration object else{ if(Res == 0) pedValue = gRandom->Gaus((35.+10.*gRandom->Rndm()),(0.5+0.2*gRandom->Rndm())); //High gain else pedValue = gRandom->Gaus((250.+100.*gRandom->Rndm()),(3.5+2.*gRandom->Rndm())); //Low gain } return (Int_t) pedValue; } //_____________________________________________________________________________ AliCDBStorage* AliZDCDigitizer::SetStorage(const char *uri) { Bool_t deleteManager = kFALSE; AliCDBManager *manager = AliCDBManager::Instance(); AliCDBStorage *defstorage = manager->GetDefaultStorage(); if(!defstorage || !(defstorage->Contains("ZDC"))){ AliWarning("No default storage set or default storage doesn't contain ZDC!"); manager->SetDefaultStorage(uri); deleteManager = kTRUE; } AliCDBStorage *storage = manager->GetDefaultStorage(); if(deleteManager){ AliCDBManager::Instance()->UnsetDefaultStorage(); defstorage = 0; // the storage is killed by AliCDBManager::Instance()->Destroy() } return storage; } //_____________________________________________________________________________ AliZDCPedestals* AliZDCDigitizer::GetPedData() const { // Getting pedestal calibration object for ZDC set AliCDBEntry *entry = AliCDBManager::Instance()->Get("ZDC/Calib/Pedestals"); if(!entry) AliFatal("No calibration data loaded!"); AliZDCPedestals *calibdata = dynamic_cast (entry->GetObject()); if(!calibdata) AliFatal("Wrong calibration object in calibration file!"); return calibdata; }