* provided "as is" without express or implied warranty. *
**************************************************************************/
-/*
-$Log$
-Revision 1.9 2000/10/02 21:28:20 fca
-Removal of useless dependecies via forward declarations
-
-Revision 1.8 2000/07/10 13:58:01 fca
-New version of ZDC from E.Scomparin & C.Oppedisano
-
-Revision 1.7 2000/01/19 17:17:40 fca
-
-Revision 1.6 1999/09/29 09:24:35 fca
-Introduction of the Copyright and cvs Log
-
-*/
+/* $Id$ */
///////////////////////////////////////////////////////////////////////////////
// //
-// Zero Degree Calorimeter //
-// This class contains the basic functions for the Time Of Flight //
-// detector. Functions specific to one particular geometry are //
-// contained in the derived classes //
+// Zero Degree Calorimeter //
+// This class contains the basic functions for the ZDCs; //
+// functions specific to one particular geometry are //
+// contained in the derived classes //
// //
///////////////////////////////////////////////////////////////////////////////
+#include <stdlib.h>
+#include <Riostream.h>
+
+// --- ROOT system
#include <TBRIK.h>
+#include <TDirectory.h>
+#include <TF1.h>
+#include <TFile.h>
+#include <TGeometry.h>
#include <TNode.h>
-#include "TGeometry.h"
+#include <TTree.h>
+#include <TVirtualMC.h>
+// --- AliRoot header files
+#include "AliDetector.h"
#include "AliZDC.h"
-#include "AliRun.h"
-#include "AliCallf77.h"
+#include "AliZDCDigit.h"
+#include "AliZDCHit.h"
+#include "AliZDCMergedHit.h"
+#include "AliZDCMerger.h"
+#include "AliZDCReco.h"
+
#include "AliConst.h"
+
+#include "AliHeader.h"
+#include "AliLoader.h"
+#include "AliRun.h"
#include "AliMC.h"
//
// Default constructor for the Zero Degree Calorimeter base class
//
- fIshunt = 1;
- fHits = 0;
+
+ fIshunt = 1;
+ fNoShower = 0;
+
+ fMerger = 0;
+ fHits = 0;
+ fNhits = 0;
+
+ fDigits = 0;
+ fNdigits = 0;
+
+ fMergedHits = 0;
+
+ fNRecPoints = 0;
+ fRecPoints = 0;
+
}
//_____________________________________________________________________________
// Standard constructor for the Zero Degree Calorimeter base class
//
- //
- // Allocate the array of hits
- fHits = new TClonesArray("AliZDChit", 405);
- gAlice->AddHitList(fHits);
-
- fIshunt = 1;
-
- fDimZN[0] = 3.52;
- fDimZN[1] = 3.52;
- fDimZN[2] = 50.;
- fDimZP[0] = 11.2;
- fDimZP[1] = 6.;
- fDimZP[2] = 75.;
- fPosZN[0] = 0.;
- fPosZN[1] = 0.;
- fPosZN[2] = 11650.;
- fPosZP[0] = -23.;
- fPosZP[1] = 0.;
- fPosZP[2] = 11600.;
- fFibZN[0] = 0.;
- fFibZN[1] = 0.01825;
- fFibZN[2] = 50.;
- fFibZP[0] = 0.;
- fFibZP[1] = 0.0275;
- fFibZP[2] = 75.;
- fGrvZN[0] = 0.03;
- fGrvZN[1] = 0.03;
- fGrvZN[2] = 50.;
- fGrvZP[0] = 0.04;
- fGrvZP[1] = 0.04;
- fGrvZP[2] = 75.;
- fDivZN[0] = 11;
- fDivZN[1] = 11;
- fDivZN[2] = 0;
- fDivZP[0] = 7;
- fDivZP[1] = 15;
- fDivZP[2] = 0;
- fTowZN[0] = 2;
- fTowZN[1] = 2;
- fTowZP[0] = 4;
- fTowZP[1] = 1;
+ fIshunt = 1;
+ fNoShower = 0;
+ fMerger = 0;
+
+ // Allocate the hits array
+ fHits = new TClonesArray("AliZDCHit",1000);
+ gAlice->GetMCApp()->AddHitList(fHits);
+ // Allocate the merged hits array
+ fMergedHits = new TClonesArray("AliZDCMergedHit",1000);
+
+ // Allocate the digits array
+ fDigits = new TClonesArray("AliZDCDigit",1000);
- // EM Calorimeter
- fDimZEMPb = 0.15*(TMath::Sqrt(2.));
- fDimZEMAir = 0.001;
- fFibRadZEM = 0.0315;
- fDivZEM[0] = 92;
- fDivZEM[1] = 0;
- fDivZEM[2] = 20;
- fDimZEM[0] = 2*fDivZEM[2]*(fDimZEMPb+fDimZEMAir+fFibRadZEM*(TMath::Sqrt(2.)));
- fDimZEM[1] = 3.5;
- fDimZEM[2] = 3.5;
- fDimZEM[3] = 45.;
- fDimZEM[4] = 0.;
- fDimZEM[5] = 0.;
- fFibZEM[0] = 0.;
- fFibZEM[1] = 0.0275;
- fFibZEM[2] = fDimZEM[2]/TMath::Sin(fDimZEM[3]*kDegrad)-fFibRadZEM;
- fPosZEM[0] = 0.;
- fPosZEM[1] = 5.8;
- fPosZEM[2] = 11600.;
+ fNRecPoints = 0;
+ fRecPoints = 0;
}
//____________________________________________________________________________
//
fIshunt = 0;
- delete fHits;
+
+ if(fMerger) delete fMerger;
+
}
//_____________________________________________________________________________
void AliZDC::AddHit(Int_t track, Int_t *vol, Float_t *hits)
{
//
- // Add a ZDC hit
+ // Add a ZDC hit to the hit list.
+ // -> We make use of 2 array of hits:
+ // [1] fHits (the usual one) that contains hits for each PRIMARY
+ // [2] fStHits that contains hits for each EVENT and is used to
+ // obtain digits at the end of each event
//
+
static Float_t primKinEn, xImpact, yImpact, sFlag;
+ AliZDCHit *newquad, *curprimquad;
+ newquad = new AliZDCHit(fIshunt, track, vol, hits);
TClonesArray &lhits = *fHits;
-
- AliZDChit *newquad, *curquad;
- newquad = new AliZDChit(fIshunt, track, vol, hits);
- Int_t i;
- for(i=0; i<fNhits; i++){
- // If the hits are equal (same track, same volume), sum them.
- curquad=(AliZDChit*) lhits[i];
- if(*curquad==*newquad){
- *curquad = *curquad+*newquad;
- delete newquad;
-// fHits->Print("");
- return;
- }
- }
-
- //Otherwise create a new hit.
- if(fNhits==0){
+
+ if(fNhits==0){
// First hit -> setting flag for primary or secondary particle
- Int_t primary = gAlice->GetPrimary(track);
+ Int_t primary = gAlice->GetMCApp()->GetPrimary(track);
if(track != primary){
- newquad->fSFlag = 1; // Hit created by secondary particle entering the ZDC
+ newquad->SetSFlag(1); // SECONDARY particle entering the ZDC
}
else if(track == primary){
- newquad->fSFlag = 0; // Hit created by PRIMARY particle entering the ZDC
+ newquad->SetSFlag(0); // PRIMARY particle entering the ZDC
}
- sFlag = newquad->fSFlag;
- primKinEn = newquad->fPrimKinEn;
- xImpact = newquad->fXImpact;
- yImpact = newquad->fYImpact;
+ sFlag = newquad->GetSFlag();
+ primKinEn = newquad->GetPrimKinEn();
+ xImpact = newquad->GetXImpact();
+ yImpact = newquad->GetYImpact();
}
else{
- newquad->fPrimKinEn = primKinEn;
- newquad->fXImpact = xImpact;
- newquad->fYImpact = yImpact;
- newquad->fSFlag = sFlag;
+ newquad->SetPrimKinEn(primKinEn);
+ newquad->SetXImpact(xImpact);
+ newquad->SetYImpact(yImpact);
+ newquad->SetSFlag(sFlag);
}
-// printf("\n");
-// fHits->Print("");
- new(lhits[fNhits++]) AliZDChit(newquad);
- delete newquad;
+
+ Int_t j;
+ for(j=0; j<fNhits; j++){
+ // If hits are equal (same track, same volume), sum them.
+ curprimquad = (AliZDCHit*) lhits[j];
+ if(*curprimquad == *newquad){
+ *curprimquad = *curprimquad+*newquad;
+ delete newquad;
+ return;
+ }
}
-
+
+ //Otherwise create a new hit
+ new(lhits[fNhits]) AliZDCHit(newquad);
+ fNhits++;
+
+ delete newquad;
+}
+
//_____________________________________________________________________________
-void AliZDC::ResetHits()
+void AliZDC::AddDigit(Int_t *sect, Int_t digit)
{
- //
- // Reset number of hits and the hits array
- //
- AliDetector::ResetHits();
+//
+ AliZDCDigit *newdigit;
+ newdigit = new AliZDCDigit(sect, digit);
+
+// printf("\n AddDigit -> sector[0] = %d, sector[1] = %d, digit = %d",
+// sect[0], sect[1], digit);
+ new((*fDigits)[fNdigits]) AliZDCDigit(*newdigit);
+ fNdigits++;
+ delete newdigit;
}
+
//_____________________________________________________________________________
void AliZDC::BuildGeometry()
{
TNode *node, *top;
TBRIK *brik;
- const int kColorZDC = kRed;
+ const int kColorZDC = kBlue;
//
top=gAlice->GetGeometry()->GetNode("alice");
//
return 9999;
}
-
+
+//____________________________________________________________________________
+Float_t AliZDC::ZMin(void) const
+{
+ // Minimum dimension of the ZDC module in z
+ return 11600.;
+}
+
+//____________________________________________________________________________
+Float_t AliZDC::ZMax(void) const
+{
+ // Maximum dimension of the ZDC module in z
+ return 11750.;
+}
+
+
//_____________________________________________________________________________
-void AliZDC::StepManager()
+ void AliZDC::MakeBranch(Option_t *opt, const char *file)
{
//
- // Routine called at every step in the Zero Degree Calorimeter
+ // Create Tree branches for the ZDC
//
+
+ char branchname[10];
+ sprintf(branchname,"%s",GetName());
+
+ const char *cH = strstr(opt,"H");
+
+ if (cH && fLoader->TreeH())
+ fHits = new TClonesArray("AliZDCHit",1000);
+
+ AliDetector::MakeBranch(opt);
+
+ const char *cS = strstr(opt,"S");
+
+ if (fLoader->TreeS() && cS) {
+ if(fMergedHits!=0) fMergedHits->Clear();
+ else fMergedHits = new TClonesArray ("AliZDCMergedHit",1000);
+ MakeBranchInTree(fLoader->TreeS(),
+ branchname, &fMergedHits, fBufferSize, file) ;
+ if (GetDebug()) printf("* AliZDC::MakeBranch * Making Branch %s for SDigits\n\n",branchname);
+ }
+
+
+ const char *cD = strstr(opt,"D");
+
+ if (fLoader->TreeD() && cD) {
+ if(fDigits!=0) fDigits->Clear();
+ else fDigits = new TClonesArray ("AliZDCDigit",1000);
+ MakeBranchInTree(fLoader->TreeD(),
+ branchname, &fDigits, fBufferSize, file) ;
+ if (GetDebug()) printf("* AliZDC::MakeBranch * Making Branch %s for Digits\n\n",branchname);
+ }
+
+
+ const char *cR = strstr(opt,"R");
+
+ if (fLoader->TreeR() && cR) {
+ if(fRecPoints==0) fRecPoints = new TClonesArray("AliZDCReco",1000);
+ MakeBranchInTree(fLoader->TreeR(),
+ branchname, &fRecPoints, fBufferSize, file) ;
+ if (GetDebug()) printf("* AliZDC::MakeBranch * Making Branch %s for RecPoints\n\n",branchname); }
+
}
-ClassImp(AliZDChit)
+//_____________________________________________________________________________
+ void AliZDC::MakeBranchInTreeS(TTree *treeS, const char *file)
+{
+ // MakeBranchInTree
+ const Int_t kBufferSize = 4000;
+ char branchname[20];
+ sprintf(branchname,"%s",GetName());
+ if (fMergedHits==0x0) fMergedHits = new TClonesArray("AliZDCMergedHit",1000);
+ MakeBranchInTree(treeS, branchname, &fMergedHits, kBufferSize, file) ;
+ if (GetDebug()) printf("* AliZDC::MakeBranch * Making Branch %s for SDigits\n\n",branchname);
+
+}
+//_____________________________________________________________________________
+ void AliZDC::MakeBranchInTreeD(TTree *treeD, const char *file)
+{
+ // MakeBranchInTree
+ const Int_t kBufferSize = 4000;
+ char branchname[20];
+ sprintf(branchname,"%s",GetName());
+ if (fDigits == 0x0) fDigits = new TClonesArray("AliZDCDigit",1000);
+ MakeBranchInTree(treeD, branchname, &fDigits, kBufferSize, file) ;
+ if (GetDebug()) printf("* AliZDC::MakeBranch * Making Branch %s for Digits\n\n",branchname);
+
+}
+//_____________________________________________________________________________
+ void AliZDC::MakeBranchInTreeR(TTree *treeR, const char *file)
+{
+ // MakeBranchInTree
+ const Int_t kBufferSize = 4000;
+ char branchname[20];
+ sprintf(branchname,"%s",GetName());
+ MakeBranchInTree(treeR, branchname, &fRecPoints, kBufferSize, file) ;
+ if (GetDebug()) printf("* AliZDC::MakeBranch * Making Branch %s for RecPoints\n\n",branchname);
+
+}
+//_____________________________________________________________________________
+void AliZDC::Hits2SDigits()
+{
+ if (GetDebug()) printf("\n Entering AliZDC::SDigits2Digits() ");
+ fLoader->LoadHits("read");
+ fLoader->LoadSDigits("recreate");
+ AliRunLoader* runLoader = fLoader->GetRunLoader();
+
+ for (Int_t iEvent = 0; iEvent < runLoader->GetNumberOfEvents(); iEvent++) {
+ runLoader->GetEvent(iEvent);
+ if (!fLoader->TreeS()) fLoader->MakeTree("S");
+ MakeBranch("S");
+
+ //----------------------------------------------------------------
+ if(!fMerger){
+ if (GetDebug()) printf(" ZDC digitization (without merging)\n");
+
+ AliZDCMergedHit *mHit;
+ Int_t j, sector[2];
+ Float_t mHits[7];
+ fNMergedhits = 0;
+
+ TTree *treeH = TreeH();
+ Int_t ntracks = (Int_t) treeH->GetEntries();
+ gAlice->ResetHits();
+
+ // Tracks loop
+ for(Int_t itrack=0; itrack<ntracks; itrack++){
+ treeH->GetEvent(itrack);
+ for(AliZDCHit* zdcHit=(AliZDCHit*)this->FirstHit(-1); zdcHit;
+ zdcHit = (AliZDCHit*)this->NextHit()){
+
+ for(j=0; j<2; j++) sector[j] = zdcHit->GetVolume(j);
+ mHits[0] = zdcHit->GetPrimKinEn();
+ mHits[1] = zdcHit->GetXImpact();
+ mHits[2] = zdcHit->GetYImpact();
+ mHits[3] = zdcHit->GetSFlag();
+ mHits[4] = zdcHit->GetLightPMQ();
+ mHits[5] = zdcHit->GetLightPMC();
+ mHits[6] = zdcHit->GetEnergy();
+ }//Hits loop
+
+ mHit = new AliZDCMergedHit(sector, mHits);
+ new((*fMergedHits)[fNMergedhits]) AliZDCMergedHit(*mHit);
+ TClonesArray &sdigits = *fMergedHits;
+ new (sdigits[fNMergedhits]) AliZDCMergedHit(*mHit);
+ fNMergedhits++;
+ delete mHit;
+ }
+ fLoader->TreeS()->Fill();
+ fLoader->TreeS()->AutoSave();
+ fLoader->TreeS()->Reset();
+ }
+ //----------------------------------------------------------------
+ else if(fMerger){
+ if (GetDebug()) printf(" ZDC merging and digitization\n");
+ // ### Initialise merging
+ fMerger -> InitMerging();
+
+ // SDigits tree
+
+
+
+ TTree *treeS = fLoader->TreeS();
+ if (treeS == 0x0)
+ {
+ Int_t retval = fLoader->LoadSDigits();
+ if (retval)
+ {
+ Error("Hits2SDigits","Error while loading S. Digits");
+ return;
+ }
+ treeS = fLoader->TreeS();
+ }
+
+ if(!treeS){
+ if (GetDebug()) printf("\n ERROR -> Can't find TreeS%d in background file\n",fMerger->EvNum());
+ }
+
+ // ### Get TCA of MergedHits from AliZDCMerger
+ fMergedHits = fMerger->MergedHits();
+ fNMergedhits = fMerger->GetNMhits();
+
+ // Branch address
+ char branchSDname[20];
+ sprintf(branchSDname,"%s",GetName());
+ if(treeS && fMergedHits){
+ TBranch *branchSD = treeS->GetBranch(branchSDname);
+ if(branchSD) branchSD->SetAddress(&fMergedHits);
+ else if(!branchSD) MakeBranchInTreeS(treeS);
+ }
+ AliZDCMergedHit *mHit;
+ TClonesArray &sdigits = *fMergedHits;
+ Int_t imhit;
+ //Merged Hits loop
+ for(imhit=0; imhit<fNMergedhits; imhit++){
+ mHit = (AliZDCMergedHit*) fMergedHits->UncheckedAt(imhit);
+ new (sdigits[imhit]) AliZDCMergedHit(*mHit);
+ }
+ treeS->Fill();
+ treeS->AutoSave();
+ }
+
+ }
+
+ fLoader->UnloadHits();
+ fLoader->UnloadSDigits();
+}
+
//_____________________________________________________________________________
-AliZDChit::AliZDChit(Int_t shunt, Int_t track, Int_t *vol, Float_t *hits):
- AliHit(shunt, track)
+void AliZDC::SDigits2Digits()
{
- //
- // Add a ZDC hit
- //
- Int_t i;
- for(i=0; i<2; i++) fVolume[i] = vol[i];
- fX = hits[0];
- fY = hits[1];
- fZ = hits[2];
- fPrimKinEn = hits[3];
- fXImpact = hits[4];
- fYImpact = hits[5];
- fSFlag = hits[6];
- fLightPMQ = hits[7];
- fLightPMC = hits[8];
- fEnergy = hits[9];
+ if(!fMerger){ // Only digitization
+ if (GetDebug()) printf(" ZDC digitization (no merging) \n");
+ fMerger = new AliZDCMerger();
+ fMerger->Digitize(fNMergedhits, fMergedHits);
+
+ char hname[30];
+ AliRunLoader * rl = fLoader->GetRunLoader();
+ sprintf(hname,"TreeD%d",rl->GetHeader()->GetEvent());
+ fLoader->TreeD()->Fill();
+ fLoader->TreeD()->AutoSave();
+ fLoader->TreeD()->Reset();
+ }
+ else if(fMerger){ // Merging and digitization
+ if (GetDebug()) printf(" ZDC merging and digitization\n");
+ fMerger->Digitize(fNMergedhits, fMergedHits);
+
+ // Digits tree
+
+ TTree *treeD = fLoader->TreeD();
+ if (treeD == 0x0)
+ {
+ Int_t retval = fLoader->LoadDigits();
+ if (retval)
+ {
+ Error("SDigits2Digits","Error while loading Digits");
+ return;
+ }
+ treeD = fLoader->TreeD();
+ }
+
+
+
+ if(!treeD){
+ if (GetDebug()) printf("\n ERROR -> Can't find TreeD%d in background file\n",fMerger->EvNum());
+ }
+ // Branch address
+ char branchDname[20];
+ sprintf(branchDname,"%s",GetName());
+ if(treeD && fDigits){
+ TBranch *branchD = treeD->GetBranch(branchDname);
+ if(branchD) branchD->SetAddress(&fDigits);
+ else if(!branchD) MakeBranchInTreeD(treeD);
+ }
+ treeD->Fill();
+ treeD->AutoSave();
+ }
+
+
+}
+//_____________________________________________________________________________
+void AliZDC::Hits2Digits()
+{
+ gAlice->Hits2SDigits();
+ gAlice->SDigits2Digits();
+}
+
+//_____________________________________________________________________________
+void AliZDC::Digits2Reco()
+{
+ if (GetDebug()) printf(" Entering AliZDC::Digits2Reco\n");
+ AliDetector *zdcd = gAlice->GetDetector("ZDC");
+ TClonesArray *zdcdigits = zdcd->Digits();
+
+ TTree *td = fLoader->TreeD();
+ if (td == 0x0)
+ {
+ Int_t retval = fLoader->LoadDigits();
+ if (retval)
+ {
+ Error("Digits2Reco","Error while loading Digits");
+ return;
+ }
+ td = fLoader->TreeD();
+ }
+
+
+ if(td){
+ char brname[20];
+ sprintf(brname,"%s",zdcd->GetName());
+ TBranch *br = td->GetBranch(brname);
+ if(br) br->SetAddress(&zdcdigits);
+ }
+ else if(!td) printf(" ERROR -> TreeD NOT found in gAlice object\n");
+
+ Int_t nt = (Int_t) (td->GetEntries());
+ gAlice->ResetDigits();
+
+ AliZDCDigit *dig;
+ Int_t j, idig, ndigits, znraw=0, zpraw=0, zemraw=0;
+ // --- Summing raw ADCs for each detector to obtain total light
+ for(j=0; j<nt; j++){
+ td->GetEvent(j);
+ ndigits = zdcdigits->GetEntries();
+ znraw=0;
+ zpraw=0;
+ zemraw=0;
+ // --- Loop over event digits
+ for(idig=0; idig<ndigits; idig++){
+ dig = (AliZDCDigit*) zdcdigits->UncheckedAt(idig);
+ if(dig->GetSector(0) == 1) znraw += dig->GetADCValue();
+ else if(dig->GetSector(0) == 2) zpraw += dig->GetADCValue();
+ else if(dig->GetSector(0) == 3) zemraw += dig->GetADCValue();
+ } // Digits loop
+ } // TreeD entries loop
+ if (GetDebug()) printf("\n --- znraw = %d, zpraw = %d, zemraw = %d\n",znraw, zpraw, zemraw);
+
+ // --- Pedestal subtraction
+ Int_t zncorr, zpcorr, zemcorr, meanPed=50;
+ zncorr = znraw - 5*meanPed;
+ zpcorr = zpraw - 5*meanPed;
+ zemcorr = zemraw - 2*meanPed;
+ if(zncorr<0) zncorr=0;
+ if(zpcorr<0) zpcorr=0;
+ if(zemcorr<0) zemcorr=0;
+ if (GetDebug()) printf("\n zncorr = %d, zpcorr = %d, zemcorr = %d\n",zncorr,zpcorr,zemcorr);
+
+ // --- ADCchannel -> photoelectrons
+ // NB-> PM gain = 10^(5), ADC resolution = 6.4*10^(-7)
+ Float_t znphe, zpphe, zemphe, convFactor = 0.064;
+ znphe = zncorr/convFactor;
+ zpphe = zpcorr/convFactor;
+ zemphe = zemcorr/convFactor;
+ if (GetDebug()) printf("\n znphe = %f, zpphe = %f, zemphe = %f\n",znphe, zpphe, zemphe);
+
+ // --- Energy calibration
+ // Conversion factors for hadronic ZDCs goes from phe yield to TRUE incident
+ // energy (conversion from GeV to TeV is included); while for EM calos
+ // conversion is from light yield to detected energy calculated by GEANT
+ // NB -> ZN and ZP conversion factors are constant since incident spectators
+ // have all the same energy, ZEM energy is obtained through a fit over the whole
+ // range of incident particle energies (obtained with full HIJING simulations)
+ Float_t znenergy, zpenergy, zemenergy, zdcenergy;
+ Float_t znphexTeV=329., zpphexTeV=369.;
+ znenergy = znphe/znphexTeV;
+ zpenergy = zpphe/zpphexTeV;
+ zdcenergy = znenergy+zpenergy;
+ zemenergy = -4.81+0.3238*zemphe;
+ if(zemenergy<0) zemenergy=0;
+ if (GetDebug()) printf(" znenergy = %f TeV, zpenergy = %f TeV, zdcenergy = %f GeV, "
+ "\n zemenergy = %f TeV\n", znenergy, zpenergy,
+ zdcenergy, zemenergy);
+
+ if(zdcenergy==0)
+ if (GetDebug()) printf("\n\n ### ATTENZIONE!!! -> ev# %d: znenergy = %f TeV, zpenergy = %f TeV, zdcenergy = %f GeV, "
+ " zemenergy = %f TeV\n\n", fMerger->EvNum(), znenergy, zpenergy, zdcenergy, zemenergy);
+
+ // --- Number of incident spectator nucleons
+ Int_t nDetSpecN, nDetSpecP;
+ nDetSpecN = (Int_t) (znenergy/2.760);
+ nDetSpecP = (Int_t) (zpenergy/2.760);
+ if (GetDebug()) printf("\n nDetSpecN = %d, nDetSpecP = %d\n",nDetSpecN, nDetSpecP);
+
+ // --- Number of generated spectator nucleons and impact parameter
+ // --------------------------------------------------------------------------------------------------
+ // [1] ### Results in Chiara's PhD thesis -> 0<b<15 fm (Dec 2001)
+ /*// Fit results for neutrons (Nspectator n true vs. EZN)
+ TF1 *fZNCen = new TF1("fZNCen",
+ "(-2.116909+sqrt(2.116909*2.116909-4*(-0.00651)*(14.556798-x)))/(2*(-0.00651))",0.,158.5);
+ TF1 *fZNPer = new TF1("fZNPer",
+ "(-34.695134-sqrt(34.695134*34.695134-4*(-0.174780)*(-1562.283443-x)))/(2*(-0.174780))",0.,158.5);
+ // Fit results for protons (Nspectator p true vs. EZP)
+ TF1 *fZPCen = new TF1("fZPCen",
+ "(-1.3217+sqrt(1.3217*1.3217-4*(-0.007934)*(4.742873-x)))/(2*(-0.007934))",0.,58.91);
+ TF1 *fZPPer = new TF1("fZPPer",
+ "(-15.788267-sqrt(15.788267*15.788267-4*(-0.133359)*(-383.800673-x)))/(2*(-0.133359))",0.,58.91);
+ // Fit results for total number of spectators (Nspectators true vs. EZDC)
+ TF1 *fZDCCen = new TF1("fZDCCen",
+ "(-1.867335+sqrt(1.867335*1.867335-4*(-0.004119)*(19.100289-x)))/(2*(-0.004119))",0.,220.4);
+ TF1 *fZDCPer = new TF1("fZDCPer",
+ "(-22.429097-sqrt(22.429097*22.429097-4*(-0.072435)*(-1482.034526-x)))/(2*(-0.072435))",0.,220.4);*/
+ // --------------------------------------------------------------------------------------------------
+ // [1] ### Results from a new production -> 0<b<18 fm (Apr 2002)
+ // Fit results for neutrons (Nspectator n true vs. EZN)
+ TF1 *fZNCen = new TF1("fZNCen",
+ "(-2.287920+sqrt(2.287920*2.287920-4*(-0.007629)*(11.921710-x)))/(2*(-0.007629))",0.,164.);
+ TF1 *fZNPer = new TF1("fZNPer",
+ "(-37.812280-sqrt(37.812280*37.812280-4*(-0.190932)*(-1709.249672-x)))/(2*(-0.190932))",0.,164.);
+ // Fit results for protons (Nspectator p true vs. EZP)
+ TF1 *fZPCen = new TF1("fZPCen",
+ "(-1.321353+sqrt(1.321353*1.321353-4*(-0.007283)*(3.550697-x)))/(2*(-0.007283))",0.,60.);
+ TF1 *fZPPer = new TF1("fZPPer",
+ "(-42.643308-sqrt(42.643308*42.643308-4*(-0.310786)*(-1402.945615-x)))/(2*(-0.310786))",0.,60.);
+ // Fit results for total number of spectators (Nspectators true vs. EZDC)
+ TF1 *fZDCCen = new TF1("fZDCCen",
+ "(-1.934991+sqrt(1.934991*1.934991-4*(-0.004080)*(15.111124-x)))/(2*(-0.004080))",0.,225.);
+ TF1 *fZDCPer = new TF1("fZDCPer",
+ "(-34.380639-sqrt(34.380639*34.380639-4*(-0.104251)*(-2612.189017-x)))/(2*(-0.104251))",0.,225.);
+ // --------------------------------------------------------------------------------------------------
+ // [1] ### Results in Chiara's PhD thesis -> 0<b<15 fm (Dec 2001)
+ /*// Fit results for b (b vs. EZDC)
+ //TF1 *fbCen = new TF1("fbCen","0.611543+0.052231*x-0.000112*x*x+0.000000374*x*x*x",0.,222.);
+ //TF1 *fbPer = new TF1("fbPer","16.552010-0.023866*x-0.00001*x*x",0.,222.);
+ TF1 *fbCen = new TF1("fbCen","0.612769+0.051929*x-0.0001074*x*x+0.0000003724*x*x*x",0.,225.);
+ TF1 *fbPer = new TF1("fbPer","16.6131016-0.026053*x+0.000006893*x*x",0.,225.);*/
+ // --------------------------------------------------------------------------------------------------
+ // [2] ### Results from a new production -> 0<b<18 fm (Apr 2002)
+ TF1 *fbCen = new TF1("fbCen","-0.056923+0.079703*x-0.0004301*x*x+0.000001366*x*x*x",0.,220.);
+ TF1 *fbPer = new TF1("fbPer","17.943998-0.046846*x+0.000074*x*x",0.,220.);
+ // --------------------------------------------------------------------------------------------------
+ // Evaluating Nspectators and b from ZEM energy
+ // [1] ### Results in Chiara's PhD thesis -> 0<b<15 fm (Dec 2001)
+ /*TF1 *fZEMn = new TF1("fZEMn","124.2-0.0566*x+0.000006014*x*x",0.,3500.);
+ TF1 *fZEMp = new TF1("fZEMp","81.3-0.03834*x+0.000004359*x*x",0.,3500.);
+ TF1 *fZEMsp = new TF1("fZEMsp","205.6-0.09567*x+0.00001056*x*x",0.,3500.);
+ TF1 *fZEMb = new TF1("fZEMb","15.8-0.02084*x+2.802e-5*x*x-2.007e-8*x*x*x+6.586e-12*x*x*x*x-8.042e-16*x*x*x*x*x",0.,3500.);*/
+ // --------------------------------------------------------------------------------------------------
+ // [2] ### Results from a new production -> 0<b<18 fm (Apr 2002)
+ TF1 *fZEMn = new TF1("fZEMn","126.2-0.05399*x+0.000005679*x*x",0.,4000.);
+ TF1 *fZEMp = new TF1("fZEMp","82.49-0.03611*x+0.00000385*x*x",0.,4000.);
+ TF1 *fZEMsp = new TF1("fZEMsp","208.7-0.09006*x+0.000009526*x*x",0.,4000.);
+ TF1 *fZEMb = new TF1("fZEMb","16.06-0.01633*x+1.44e-5*x*x-6.778e-9*x*x*x+1.438e-12*x*x*x*x-1.112e-16*x*x*x*x*x",0.,4000.);
+
+ Int_t nGenSpecN=0, nGenSpecP=0, nGenSpec=0;
+ Double_t impPar=0;
+ // Cut value for Ezem (GeV)
+ // [1] ### Results in Chiara's PhD thesis -> 0<b<15 fm (Dec 2001)
+ //Float_t eZEMCut = 360.;
+ // [2] ### Results from a new production -> 0<b<18 fm (Apr 2002)
+ Float_t eZEMCut = 420.;
+ Float_t deltaEZEMSup = 690.;
+ Float_t deltaEZEMInf = 270.;
+ if(zemenergy > (eZEMCut+deltaEZEMSup)){
+ nGenSpecN = (Int_t) (fZNCen->Eval(znenergy));
+ nGenSpecP = (Int_t) (fZPCen->Eval(zpenergy));
+ nGenSpec = (Int_t) (fZDCCen->Eval(zdcenergy));
+ impPar = fbCen->Eval(zdcenergy);
+ //printf(" fZNCen = %f, fZPCen = %f, fZDCCen = %f\n",fZNCen->Eval(znenergy),
+ // fZPCen->Eval(zpenergy),fZDCCen->Eval(zdcenergy));
+ }
+ else if(zemenergy < (eZEMCut-deltaEZEMInf)){
+ nGenSpecN = (Int_t) (fZNPer->Eval(znenergy));
+ nGenSpecP = (Int_t) (fZPPer->Eval(zpenergy));
+ nGenSpec = (Int_t) (fZDCPer->Eval(zdcenergy));
+ impPar = fbPer->Eval(zdcenergy);
+ //printf(" fZNPer = %f, fZPPer = %f, fZDCPer = %f\n",fZNPer->Eval(znenergy),
+ // fZPPer->Eval(zpenergy),fZDCPer->Eval(zdcenergy));
+ }
+ else if(zemenergy >= (eZEMCut-deltaEZEMInf) && zemenergy <= (eZEMCut+deltaEZEMSup)){
+ nGenSpecN = (Int_t) (fZEMn->Eval(zemenergy));
+ nGenSpecP = (Int_t) (fZEMp->Eval(zemenergy));
+ nGenSpec = (Int_t)(fZEMsp->Eval(zemenergy));
+ impPar = fZEMb->Eval(zemenergy);
+ //printf(" Nspec ZEM = %f, Nspec ZDC = %f\n",fZEMsp->Eval(znenergy),fZDCPer->Eval(zdcenergy));
+ }
+ // [1] ### Results in Chiara's PhD thesis -> 0<b<15 fm (Dec 2001)
+ /*if(znenergy>158.5) nGenSpecN = (Int_t) (fZEMn->Eval(zemenergy));
+ if(zpenergy>58.91) nGenSpecP = (Int_t) (fZEMp->Eval(zemenergy));
+ if(zdcenergy>220.4) nGenSpec = (Int_t)(fZEMsp->Eval(zemenergy));
+ if(zdcenergy>225.) impPar = fZEMb->Eval(zemenergy);*/
+ // [2] ### Results from a new production -> 0<b<18 fm (Apr 2002)
+ if(znenergy>162.) nGenSpecN = (Int_t) (fZEMn->Eval(zemenergy));
+ if(zpenergy>59.75) nGenSpecP = (Int_t) (fZEMp->Eval(zemenergy));
+ if(zdcenergy>221.5) nGenSpec = (Int_t)(fZEMsp->Eval(zemenergy));
+ if(zdcenergy>220.) impPar = fZEMb->Eval(zemenergy);
+
+ if(nGenSpecN>125) nGenSpecN=125;
+ else if(nGenSpecN<0) nGenSpecN=0;
+ if(nGenSpecP>82) nGenSpecP=82;
+ else if(nGenSpecP<0) nGenSpecP=0;
+ if(nGenSpec>207) nGenSpec=207;
+ else if(nGenSpec<0) nGenSpec=0;
+ //printf(" NRecSpecN = %d, NRecSpecP = %d, NRecSpec = %d\n",nGenSpecN,nGenSpecP,nGenSpec);
+
+ // --- Number of participants
+ Int_t nPart, nPartTot;
+ nPart = 207-nGenSpecN-nGenSpecP;
+ nPartTot = 207-nGenSpec;
+ //printf(" ### nPart(ZP+ZN) = %d, nPart(ZDC) = %d, b = %f fm\n",nPart,nPartTot,impPar);
+ if (GetDebug()) printf(" ### nPart = %d, b = %f fm\n",nPartTot,impPar);
+
+ // --- Writing RecPoints TCA
+ // Allocate the RecPoints TCA
+ fRecPoints = new TClonesArray("AliZDCReco",1000);
+ AliZDCReco *reco = new AliZDCReco(znenergy,zpenergy,zdcenergy,zemenergy,
+ nDetSpecN,nDetSpecP,nGenSpecN,nGenSpecP,nGenSpec,nPartTot,impPar);
+ new((*fRecPoints)[fNRecPoints]) AliZDCReco(*reco);
+ //fNRecPoints++;
+ //fRecPoints->Dump();
+ delete reco;
+
+ // TreeR
+ TTree *treeR = fLoader->TreeR();
+ if(!treeR) printf("\n ERROR -> Can't find TreeR%d in background file\n",fMerger->EvNum());
+ // Branch address
+ char branchRname[20];
+ sprintf(branchRname,"%s",GetName());
+ if(fRecPoints){
+ TBranch *branchR = treeR->GetBranch(branchRname);
+ if(branchR) branchR->SetAddress(&fRecPoints);
+ else if(!branchR) MakeBranchInTreeR(treeR);
+ }
+ treeR->Fill();
+ treeR->AutoSave();
+ treeR->Reset();
+}
+
+//______________________________________________________________________
+void AliZDC::SetTreeAddress(){
+ // Set branch address for the Trees.
+ // Inputs:
+ // none.
+ // Outputs:
+ // none.
+ // Return:
+ // none.
+ if (fLoader->TreeH() && (fHits == 0x0))
+ fHits = new TClonesArray("AliZDCHit",1000);
+
+ if (fLoader->TreeD() && (fDigits == 0x0))
+ fDigits = new TClonesArray("AliZDCDigit",1000);
+
+ AliDetector::SetTreeAddress();
}
+