* provided "as is" without express or implied warranty. *
**************************************************************************/
-/*
-$Log$
-Revision 1.12 2000/12/01 08:19:01 coppedis
-Adding a message error if ZDC is constructed without DIPO
-
-Revision 1.11 2000/11/30 17:21:03 coppedis
-Introduce hit array fStHits reset only at the end of the event (for digitization)
-
-Revision 1.10 2000/11/22 11:32:58 coppedis
-Major code revision
-
-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 ZDCs //
-// 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 "AliZDCDigit.h"
#include "AliZDCHit.h"
-#include "AliRun.h"
-#include "AliDetector.h"
-#include "AliCallf77.h"
+#include "AliZDCMergedHit.h"
+#include "AliZDCMerger.h"
+#include "AliZDCReco.h"
+
#include "AliConst.h"
-#include "AliMC.h"
+
+#include "AliHeader.h"
+#include "AliLoader.h"
+#include "AliRun.h"
ClassImp(AliZDC)
// Default constructor for the Zero Degree Calorimeter base class
//
- fIshunt = 1;
+ fIshunt = 1;
+ fNoShower = 0;
+
+ fMerger = 0;
+ fHits = 0;
+ fNhits = 0;
+
+ fDigits = 0;
+ fNdigits = 0;
- fNhits = 0;
- fNStHits = 0;
- fNPrimaryHits = 0;
+ fMergedHits = 0;
+
+ fNRecPoints = 0;
+ fRecPoints = 0;
+
}
//_____________________________________________________________________________
// Standard constructor for the Zero Degree Calorimeter base class
//
- // Check that DIPO is there (otherwise tracking is wrong!!!)
-
- AliModule* DIPO=gAlice->GetModule("DIPO");
- if(!DIPO) {
- Error("Constructor","ZDC needs DIPO!!!\n");
- exit(1);
- }
-
- //
- // Allocate the array of hits
+ fIshunt = 1;
+ fNoShower = 0;
+ fMerger = 0;
+ // Allocate the hits array
fHits = new TClonesArray("AliZDCHit",1000);
gAlice->AddHitList(fHits);
-
- fStHits = new TClonesArray("AliZDCHit",1000);
-
- fNStHits = 0;
+ // Allocate the merged hits array
+ fMergedHits = new TClonesArray("AliZDCMergedHit",1000);
- fNPrimaryHits = 0;
-
- fIshunt = 1;
+ // Allocate the digits array
+ fDigits = new TClonesArray("AliZDCDigit",1000);
- 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;
-
- // 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(fStHits){
-// fStHits->Delete();
-// delete fStHits;
-// fNStHits = 0;
-// }
-// delete fDigits;
+
+ if(fMerger) delete fMerger;
+
}
//_____________________________________________________________________________
void AliZDC::AddHit(Int_t track, Int_t *vol, Float_t *hits)
static Float_t primKinEn, xImpact, yImpact, sFlag;
- TClonesArray &lsthits = *fStHits;
-
-
- AliZDCHit *newquad, *curevquad, *curprimquad;
+ AliZDCHit *newquad, *curprimquad;
newquad = new AliZDCHit(fIshunt, track, vol, hits);
-
TClonesArray &lhits = *fHits;
-
- Int_t i,j,kStHit = 1;
- for(i=0; i<fNStHits; i++){
- // If the hits are equal (same track, same volume), sum them.
- curevquad = (AliZDCHit*) lsthits[i];
- kStHit = 1;
- if(*curevquad == *newquad){
- *curevquad = *curevquad+*newquad;
- kStHit = 0;
- }
- }
-
- for(j=0; j<fNhits; j++){
- // If the hits are equal (same track, same volume), sum them.
- curprimquad = (AliZDCHit*) lhits[j];
- if(*curprimquad == *newquad){
- *curprimquad = *curprimquad+*newquad;
- delete newquad;
- return;
- }
- }
if(fNhits==0){
// First hit -> setting flag for primary or secondary particle
Int_t primary = gAlice->GetPrimary(track);
if(track != primary){
- newquad->fSFlag = 1; // Hit created by secondary particle entering the ZDC
+ newquad->fSFlag = 1; // SECONDARY particle entering the ZDC
}
else if(track == primary){
- newquad->fSFlag = 0; // Hit created by PRIMARY particle entering the ZDC
+ newquad->fSFlag = 0; // PRIMARY particle entering the ZDC
}
- fNPrimaryHits = fNPrimaryHits + 1;
- sFlag = newquad->fSFlag;
+ sFlag = newquad->fSFlag;
primKinEn = newquad->fPrimKinEn;
- xImpact = newquad->fXImpact;
- yImpact = newquad->fYImpact;
+ xImpact = newquad->fXImpact;
+ yImpact = newquad->fYImpact;
}
else{
newquad->fPrimKinEn = primKinEn;
- newquad->fXImpact = xImpact;
+ newquad->fXImpact = xImpact;
newquad->fYImpact = yImpact;
- newquad->fSFlag = sFlag;
+ newquad->fSFlag = sFlag;
}
+
+ 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++;
- if(kStHit){
- new(lsthits[fNStHits]) AliZDCHit(newquad);
- fNStHits++;
- }
-
-// printf("\n Primary Hits --------------------------------------------------------\n");
-// fHits->Print("");
-// printf("\n Event Hits --------------------------------------------------------\n");
-// fStHits->Print("");
-
delete newquad;
- }
-
+}
+
//_____________________________________________________________________________
-void AliZDC::ResetDigits()
+void AliZDC::AddDigit(Int_t *sect, Int_t digit)
{
- //
- // Reset number of digits and the digits array
- //
-
- AliDetector::ResetDigits();
-// fNStHits = 0;
-// if(fStHits) fStHits->Clear();
+//
+ 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) ;
+ 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) ;
+ printf("* AliZDC::MakeBranch * Making Branch %s for Digits\n\n",branchname);
+ }
+
+
+ const char *cR = strstr(opt,"R");
+
+ if (gAlice->TreeR() && cR) {
+ if(fRecPoints==0) fRecPoints = new TClonesArray("AliZDCReco",1000);
+ MakeBranchInTree(gAlice->TreeR(),
+ branchname, &fRecPoints, fBufferSize, file) ;
+ printf("* AliZDC::MakeBranch * Making Branch %s for RecPoints\n\n",branchname); }
+
}
+
+//_____________________________________________________________________________
+ 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) ;
+ 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) ;
+ 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) ;
+ printf("* AliZDC::MakeBranch * Making Branch %s for RecPoints\n\n",branchname);
+
+}
+//_____________________________________________________________________________
+void AliZDC::Hits2SDigits()
+{
+ printf("\n Entering AliZDC::SDigits2Digits() ");
+
+ //----------------------------------------------------------------
+ if(!fMerger){
+ 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;
+ }
+ gAlice->TreeS()->Fill();
+ gAlice->TreeS()->AutoSave();
+ gAlice->TreeS()->Reset();
+ }
+ //----------------------------------------------------------------
+ else if(fMerger){
+ 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){
+ 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();
+ }
+
+}
+
+//_____________________________________________________________________________
+void AliZDC::SDigits2Digits()
+{
+ if(!fMerger){ // Only digitization
+ printf(" ZDC digitization (no merging) \n");
+ fMerger = new AliZDCMerger();
+ fMerger->Digitize(fNMergedhits, fMergedHits);
+
+ char hname[30];
+ sprintf(hname,"TreeD%d",gAlice->GetHeader()->GetEvent());
+ gAlice->TreeD()->Fill();
+ gAlice->TreeD()->AutoSave();
+ gAlice->TreeD()->Reset();
+ }
+ else if(fMerger){ // Merging and digitization
+ 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){
+ 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()
+{
+ printf(" Entering AliZDC::Digits2Reco\n");
+ AliDetector *ZDC = gAlice->GetDetector("ZDC");
+ TClonesArray *ZDCdigits = ZDC->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",ZDC->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
+ 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;
+ 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;
+ 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;
+ printf(" ZNenergy = %f TeV, ZPenergy = %f TeV, ZDCenergy = %f GeV, "
+ "\n ZEMenergy = %f TeV\n", ZNenergy, ZPenergy,
+ ZDCenergy, ZEMenergy);
+
+ if(ZDCenergy==0)
+ 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);
+ 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);
+ 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 = gAlice->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();
+}
+
+
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff