/* $Id$ */
//_________________________________________________________________________
-// Algorythm class to analyze PHOSv1 events:
-// Construct histograms and displays them.
-// Use the macro EditorBar.C for best access to the functionnalities
+// Algorythm class to analyze PHOS events. In this class we demostrate,
+// how to handle reconstructed objects with AliPHSOIndexToObject.
+// As an example we propose sulotions for four most frequently used tasks:
+// DrawRecon(...) - to draw reconstructed objects in the PHOS plane,
+// very usefull in the debuging
+// InvarianMass(...) - to calculate "REAL" and "MIXED" photon pairs
+// invariant mass distributions
+// EnergyResoluition(...) -\ Energy and position resolutions of the
+// PositionResolution(...)-/ reconstructed photons
+// Contamination(...) - calculates contamination of the photon spectrum and
+// pobability of reconstruction of several primaries as
+// kGAMMA,kELECTRON etc.
//
-//*-- Author: Y. Schutz (SUBATECH) & Gines Martinez (SUBATECH)
+// User Case:
+// root [0] AliPHOSAnalyze * a = new AliPHOSAnalyze("galice.root")
+// // set the file you want to analyse
+// root [1] a->DrawRecon(1,3)
+// // plot RecObjects, made in event 1, PHOS module 3
+// root [2] a->DrawRecon(1,3,"PHOSRP","another PID")
+// // plot RecObjets made in the event 1, PHOS module 3,
+// // produced in the another reconstruction pass,
+// // which produced PHOS RecParticles ("PHOSRP") with
+// // title "another PID".
+// root [3] a->InvariantMass()
+// // Calculates "REAL" and "MIXED" invariant mass
+// // distributions of kGAMMA and (kGAMMA+kNEUTRALEM)
+// // and APPENDS this to the file "invmass.root"
+// root [4] a->PositionResolution()
+// // calculates two dimentional histos: energy of the primary
+// // photon vs distance betwin incedence point and reconstructed
+// // poisition. One can analyse the produced file position.root
+// // with macro PhotonPosition.C
+// root [5] a->EnergyResolution()
+// // calculates two dimentional histos: energy of the primary
+// // photon vs energy of the reconstructed particle. One can
+// // analyse the produced file energy.root
+// // with macro PhotonEnergy.C
+// root [6] a->Contamination()
+// // fills spectra of primary photons and several kinds of
+// // reconstructed particles, so that analyzing them one can
+// // estimate conatmination, efficiency of registration etc.
+//*--
+//*-- Author: Dmitri Peressounko (SUBATECH & RRC Kurchatov Institute)
//////////////////////////////////////////////////////////////////////////////
+
// --- ROOT system ---
#include "TFile.h"
#include "TH1.h"
-#include "TPad.h"
+#include "TH2.h"
#include "TH2.h"
#include "TParticle.h"
#include "TClonesArray.h"
#include "TTree.h"
#include "TMath.h"
-#include "TCanvas.h"
+#include "TROOT.h"
+#include "TFolder.h"
// --- Standard library ---
-#include <iostream.h>
-#include <stdio.h>
+#include <iomanip.h>
// --- AliRoot header files ---
#include "AliRun.h"
+#include "AliPHOSv1.h"
#include "AliPHOSAnalyze.h"
-#include "AliPHOSClusterizerv1.h"
-#include "AliPHOSTrackSegmentMakerv1.h"
-#include "AliPHOSPIDv1.h"
-#include "AliPHOSReconstructioner.h"
#include "AliPHOSDigit.h"
+#include "AliPHOSSDigitizer.h"
#include "AliPHOSTrackSegment.h"
#include "AliPHOSRecParticle.h"
-#include "AliPHOSIndexToObject.h"
+#include "AliPHOSCpvRecPoint.h"
+#include "AliPHOSGetter.h"
-ClassImp(AliPHOSAnalyze)
+ClassImp(AliPHOSAnalyze)
//____________________________________________________________________________
AliPHOSAnalyze::AliPHOSAnalyze()
{
// default ctor (useless)
-
- fRootFile = 0 ;
+ fCorrection = 1.2 ; //Value calculated for default parameters of reconstruction
}
//____________________________________________________________________________
-AliPHOSAnalyze::AliPHOSAnalyze(Text_t * name)
+AliPHOSAnalyze::AliPHOSAnalyze(Text_t * fileName)
{
// ctor: analyze events from root file "name"
-
- Bool_t ok = OpenRootFile(name) ;
- if ( !ok ) {
- cout << " AliPHOSAnalyze > Error opening " << name << endl ;
- }
- else {
- //========== Get AliRun object from file
- gAlice = (AliRun*) fRootFile->Get("gAlice") ;
-
- //=========== Get the PHOS object and associated geometry from the file
- fPHOS = (AliPHOSv1 *)gAlice->GetDetector("PHOS") ;
- fGeom = AliPHOSGeometry::GetInstance( fPHOS->GetGeometry()->GetName(), fPHOS->GetGeometry()->GetTitle() );
-
- //========== Initializes the Index to Object converter
- fObjGetter = AliPHOSIndexToObject::GetInstance(fPHOS) ;
- //========== Current event number
- fEvt = -999 ;
-
- }
- ResetHistograms() ;
+ ffileName = fileName ;
+ fCorrection = 1.05 ; //Value calculated for default parameters of reconstruction
}
//____________________________________________________________________________
( (AliPHOSAnalyze &)ana ).Copy(*this) ;
}
-//____________________________________________________________________________
-void AliPHOSAnalyze::Copy(TObject & obj)
-{
- // copy an analysis into an other one
- TObject::Copy(obj) ;
- // I do nothing more because the copy is silly but the Code checkers requires one
-}
-
//____________________________________________________________________________
AliPHOSAnalyze::~AliPHOSAnalyze()
{
// dtor
- if (fRootFile->IsOpen() )
- fRootFile->Close() ;
- if(fRootFile)
- delete fRootFile ;
-
- if(fPHOS)
- delete fPHOS ;
-
- if(fClu)
- delete fClu ;
-
- if(fPID)
- delete fPID ;
-
- if(fRec)
- delete fRec ;
-
- if(fTrs)
- delete fTrs ;
-
}
-
//____________________________________________________________________________
-void AliPHOSAnalyze::ActivePPSD(Int_t Nevents=1){
+void AliPHOSAnalyze::DrawRecon(Int_t Nevent,Int_t Nmod,const char * branchName,const char* branchTitle){
+ //Draws pimary particles and reconstructed
+ //digits, RecPoints, RecPartices etc
+ //for event Nevent in the module Nmod.
+
+ //========== Create ObjectGetter
+ AliPHOSGetter * gime = AliPHOSGetter::GetInstance(ffileName.Data(),branchTitle) ;
+ if(Nevent >= gAlice->TreeE()->GetEntries() ) {
+ cout << "There is no event " << Nevent << ", only " << gAlice->TreeE()->GetEntries() << "events available " <<endl ;
+ return ;
+ }
+ const AliPHOSGeometry * phosgeom = gime->PHOSGeometry() ;
+ gime->Event(Nevent);
+
+ Int_t nx = phosgeom->GetNPhi() ;
+ Int_t nz = phosgeom->GetNZ() ;
+ Float_t * cri= phosgeom->GetEMCAGeometry()->GetCrystalHalfSize() ;
+ Float_t x = nx*cri[0] ;
+ Float_t z = nz*cri[2] ;
+ Int_t nxCPV = (Int_t) (nx*phosgeom->GetPadSizePhi()/(2.*cri[0])) ;
+ Int_t nzCPV = (Int_t) (nz*phosgeom->GetPadSizeZ()/(2.*cri[2])) ;
+
+ TH2F * emcDigits = (TH2F*) gROOT->FindObject("emcDigits") ;
+ if(emcDigits)
+ emcDigits->Delete() ;
+ emcDigits = new TH2F("emcDigits","EMC digits", nx,-x,x,nz,-z,z);
+ TH2F * emcSdigits =(TH2F*) gROOT->FindObject("emcSdigits") ;
+ if(emcSdigits)
+ emcSdigits->Delete() ;
+ emcSdigits = new TH2F("emcSdigits","EMC sdigits", nx,-x,x,nz,-z,z);
+ TH2F * emcRecPoints = (TH2F*)gROOT->FindObject("emcRecPoints") ;
+ if(emcRecPoints)
+ emcRecPoints->Delete() ;
+ emcRecPoints = new TH2F("emcRecPoints","EMC RecPoints",nx,-x,x,nz,-z,z);
+ TH2F * cpvSdigits =(TH2F*) gROOT->FindObject("cpvSdigits") ;
+ if(cpvSdigits)
+ cpvSdigits->Delete() ;
+ cpvSdigits = new TH2F("cpvSdigits","CPV sdigits", nx,-x,x,nz,-z,z);
+ TH2F * cpvDigits = (TH2F*)gROOT->FindObject("cpvDigits") ;
+ if(cpvDigits)
+ cpvDigits->Delete() ;
+ cpvDigits = new TH2F("cpvDigits","CPV digits", nxCPV,-x,x,nzCPV,-z,z) ;
+ TH2F * cpvRecPoints= (TH2F*)gROOT->FindObject("cpvRecPoints") ;
+ if(cpvRecPoints)
+ cpvRecPoints->Delete() ;
+ cpvRecPoints = new TH2F("cpvRecPoints","CPV RecPoints", nxCPV,-x,x,nzCPV,-z,z) ;
+
+ TH2F * phot = (TH2F*)gROOT->FindObject("phot") ;
+ if(phot)
+ phot->Delete() ;
+ phot = new TH2F("phot","Primary Photon", nx,-x,x,nz,-z,z);
+ TH2F * recPhot = (TH2F*)gROOT->FindObject("recPhot") ;
+ if(recPhot)
+ recPhot->Delete() ;
+ recPhot = new TH2F("recPhot","RecParticles with primary Photon",nx,-x,x,nz,-z,z);
- fhEnergyCorrelations = new TH2F("hEnergyCorrelations","hEnergyCorrelations",40, 0., 0.15, 30, 0., 3.e-5);
- //========== Create the Clusterizer
- fClu = new AliPHOSClusterizerv1() ;
- fClu->SetEmcEnergyThreshold(0.05) ;
- fClu->SetEmcClusteringThreshold(0.20) ;
- fClu->SetPpsdEnergyThreshold (0.0000002) ;
- fClu->SetPpsdClusteringThreshold(0.0000001) ;
- fClu->SetLocalMaxCut(0.03) ;
- fClu->SetCalibrationParameters(0., 0.00000001) ;
+
+ //Plot Primary Particles
+ const TParticle * primary ;
+ Int_t iPrimary ;
+ for ( iPrimary = 0 ; iPrimary < gime->NPrimaries() ; iPrimary++)
+ {
+ primary = gime->Primary(iPrimary) ;
+ Int_t primaryType = primary->GetPdgCode() ;
+// if( (primaryType == 211)||(primaryType == -211)||(primaryType == 2212)||(primaryType == -2212)
+// ||(primaryType == 11)||(primaryType == -11) ) {
+// Int_t moduleNumber ;
+// Double_t primX, primZ ;
+// phosgeom->ImpactOnEmc(primary->Theta(), primary->Phi(), moduleNumber, primX, primZ) ;
+// if(moduleNumber==Nmod)
+// charg->Fill(primZ,primX,primary->Energy()) ;
+// }
+ if( primaryType == 22 ) {
+ Int_t moduleNumber ;
+ Double_t primX, primZ ;
+ phosgeom->ImpactOnEmc(primary->Theta(), primary->Phi(), moduleNumber, primX, primZ) ;
+ if(moduleNumber==Nmod)
+ phot->Fill(primZ,primX,primary->Energy()) ;
+ }
+// else{
+// if( primaryType == -2112 ) {
+// Int_t moduleNumber ;
+// Double_t primX, primZ ;
+// phosgeom->ImpactOnEmc(primary->Theta(), primary->Phi(), moduleNumber, primX, primZ) ;
+// if(moduleNumber==Nmod)
+// nbar->Fill(primZ,primX,primary->Energy()) ;
+// }
+// }
+ }
- Int_t ievent;
- for ( ievent=0; ievent<Nevents; ievent++)
- {
-
- //========== Event Number>
- if ( ( log10((Float_t)(ievent+1)) - (Int_t)(log10((Float_t)(ievent+1))) ) == 0. )
- cout << "AnalyzeResolutions > " << "Event is " << ievent << endl ;
-
- //=========== Connects the various Tree's for evt
- gAlice->GetEvent(ievent);
-
- //=========== Gets the Kine TTree
- gAlice->TreeK()->GetEvent(0) ;
-
- //=========== Get the Digit Tree
- gAlice->TreeD()->GetEvent(0) ;
-
- //========== Creating branches ===================================
- AliPHOSRecPoint::RecPointsList ** EmcRecPoints = fPHOS->EmcRecPoints() ;
- gAlice->TreeR()->SetBranchAddress( "PHOSEmcRP", EmcRecPoints ) ;
-
- AliPHOSRecPoint::RecPointsList ** PpsdRecPoints = fPHOS->PpsdRecPoints() ;
- gAlice->TreeR()->SetBranchAddress( "PHOSPpsdRP", PpsdRecPoints ) ;
-
- AliPHOSTrackSegment::TrackSegmentsList ** TrackSegmentsList = fPHOS->TrackSegments() ;
- if( (*TrackSegmentsList) )
- (*TrackSegmentsList)->Clear() ;
- gAlice->TreeR()->SetBranchAddress( "PHOSTS", TrackSegmentsList ) ;
-
- AliPHOSRecParticle::RecParticlesList ** RecParticleList = fPHOS->RecParticles() ;
- if( (*RecParticleList) )
- (*RecParticleList)->Clear() ;
- gAlice->TreeR()->SetBranchAddress( "PHOSRP", RecParticleList ) ;
-
-
- //=========== Gets the Reconstraction TTree
- gAlice->TreeR()->GetEvent(0) ;
-
- AliPHOSPpsdRecPoint * RecPoint ;
- Int_t relid[4] ;
- TIter nextRP(*fPHOS->PpsdRecPoints() ) ;
- while( ( RecPoint = (AliPHOSPpsdRecPoint *)nextRP() ) )
- {
- if(!(RecPoint->GetUp()) ) {
- AliPHOSDigit *digit ;
- Int_t iDigit ;
- for(iDigit = 0; iDigit < fPHOS->Digits()->GetEntries(); iDigit++)
- {
- digit = (AliPHOSDigit *) fPHOS->Digits()->At(iDigit) ;
- fGeom->AbsToRelNumbering(digit->GetId(), relid) ;
- if((relid[2]==1)&&(relid[3]==1)&&(relid[0]==RecPoint->GetPHOSMod())){
- Float_t ConvertorEnergy = fClu->Calibrate(digit->GetAmp()) ;
- fhEnergyCorrelations->Fill(ConvertorEnergy,RecPoint->GetTotalEnergy() );
- break ;
- }
- }
- break ;
- }
- }
+ Int_t iSDigit ;
+ AliPHOSDigit * sdigit ;
+ const TClonesArray * sdigits = gime->SDigits() ;
+ Int_t nsdig[5] = {0,0,0,0,0} ;
+ if(sdigits){
+ for(iSDigit = 0; iSDigit < sdigits->GetEntriesFast() ; iSDigit++)
+ {
+ sdigit = (AliPHOSDigit *) sdigits->At(iSDigit) ;
+ Int_t relid[4];
+ phosgeom->AbsToRelNumbering(sdigit->GetId(), relid) ;
+ Float_t x,z ;
+ phosgeom->RelPosInModule(relid,x,z) ;
+ Float_t e = gime->SDigitizer()->Calibrate(sdigit->GetAmp()) ;
+ nsdig[relid[0]-1]++ ;
+ if(relid[0]==Nmod){
+ if(relid[1]==0) //EMC
+ emcSdigits->Fill(x,z,e) ;
+ if( relid[1]!=0 )
+ cpvSdigits->Fill(x,z,e) ;
+ }
+ }
+ }
+ cout << "Number of EMC + CPV SDigits per module: " <<endl ;
+ cout << nsdig[0] << " " << nsdig[1] << " " << nsdig[2] << " " << nsdig[3]<< " " << nsdig[4] << endl ;
+ cout << endl ;
+
+
+ //Plot digits
+ Int_t iDigit ;
+ AliPHOSDigit * digit ;
+ const TClonesArray * digits = gime->Digits();
+ if(digits) {
+ for(iDigit = 0; iDigit < digits->GetEntriesFast(); iDigit++)
+ {
+ digit = (AliPHOSDigit *) digits->At(iDigit) ;
+ Int_t relid[4];
+ phosgeom->AbsToRelNumbering(digit->GetId(), relid) ;
+ Float_t x,z ;
+ phosgeom->RelPosInModule(relid,x,z) ;
+ Float_t e = gime->SDigitizer()->Calibrate(digit->GetAmp()) ;
+ if(relid[0]==Nmod){
+ if(relid[1]==0) //EMC
+ emcDigits->Fill(x,z,e) ;
+ if( relid[1]!=0 )
+ cpvDigits->Fill(x,z,e) ;
+ }
+ }
+ }
+
+
+ //Plot RecPoints
+ Int_t irecp ;
+ TVector3 pos ;
+ TObjArray * emcrp = gime->EmcRecPoints() ;
+ if(emcrp) {
+ for(irecp = 0; irecp < emcrp->GetEntriesFast() ; irecp ++){
+ AliPHOSEmcRecPoint * emc = (AliPHOSEmcRecPoint *) emcrp->At(irecp) ;
+ if(emc->GetPHOSMod()==Nmod){
+ emc->GetLocalPosition(pos) ;
+ emcRecPoints->Fill(pos.X(),pos.Z(),emc->GetEnergy());
+ }
}
- SaveHistograms() ;
- fhEnergyCorrelations->Draw("BOX") ;
-}
-
-//____________________________________________________________________________
- void AliPHOSAnalyze::AnalyzeManyEvents(Int_t Nevents, Int_t module)
-{
- // analyzes Nevents events in a single PHOS module
- // Events should be reconstructed by Reconstruct()
-
- if ( fRootFile == 0 )
- cout << "AnalyzeManyEvents > " << "Root File not openned" << endl ;
- else
- {
- //========== Booking Histograms
- cout << "AnalyzeManyEvents > " << "Booking Histograms" << endl ;
- BookingHistograms();
-
- Int_t ievent;
- Int_t relid[4] ;
- AliPHOSDigit * digit ;
- AliPHOSEmcRecPoint * emc ;
- AliPHOSPpsdRecPoint * ppsd ;
- // AliPHOSTrackSegment * tracksegment ;
- AliPHOSRecParticle * recparticle;
-
- for ( ievent=0; ievent<Nevents; ievent++)
- {
- //========== Event Number>
- if ( ( log10((Float_t)(ievent+1)) - (Int_t)(log10((Float_t)(ievent+1))) ) == 0. )
- cout << "AnalyzeManyEvents > " << "Event is " << ievent << endl ;
-
- //=========== Connects the various Tree's for evt
- gAlice->GetEvent(ievent);
-
- //=========== Gets the Digit TTree
- gAlice->TreeD()->GetEvent(0) ;
-
- //=========== Gets the number of entries in the Digits array
- TIter nextdigit(fPHOS->Digits()) ;
- while( ( digit = (AliPHOSDigit *)nextdigit() ) )
- {
- fGeom->AbsToRelNumbering(digit->GetId(), relid) ;
- if (fClu->IsInEmc(digit)) fhEmcDigit->Fill(fClu->Calibrate(digit->GetAmp())) ;
- else
- {
- if (relid[1]<17) fhVetoDigit->Fill(fClu->Calibrate(digit->GetAmp()));
- if (relid[1]>16) fhConvertorDigit->Fill(fClu->Calibrate(digit->GetAmp()));
- }
- }
+ }
+
+ TObjArray * cpvrp = gime->CpvRecPoints() ;
+ if(cpvrp) {
+ for(irecp = 0; irecp < cpvrp->GetEntriesFast() ; irecp ++){
+ AliPHOSRecPoint * cpv = (AliPHOSCpvRecPoint *) cpvrp->At(irecp) ;
+ if(cpv->GetPHOSMod()==Nmod){
+ cpv->GetLocalPosition(pos) ;
+ cpvRecPoints->Fill(pos.X(),pos.Z(),cpv->GetEnergy());
+ }
+ }
+ }
+
+ //Plot RecParticles
+ AliPHOSRecParticle * recParticle ;
+ Int_t iRecParticle ;
+ TClonesArray * rp = gime->RecParticles() ;
+ TClonesArray * ts = gime->TrackSegments() ;
+ if(rp && ts && emcrp) {
+ for(iRecParticle = 0; iRecParticle < rp->GetEntriesFast() ; iRecParticle++ )
+ {
+ recParticle = (AliPHOSRecParticle *) rp->At(iRecParticle) ;
+ Int_t moduleNumberRec ;
+ Double_t recX, recZ ;
+ phosgeom->ImpactOnEmc(recParticle->Theta(), recParticle->Phi(), moduleNumberRec, recX, recZ) ;
+ if(moduleNumberRec == Nmod){
+ Double_t minDistance = 5. ;
+ Int_t closestPrimary = -1 ;
- //=========== Cluster in module
- TIter nextEmc(*fPHOS->EmcRecPoints() ) ;
- while((emc = (AliPHOSEmcRecPoint *)nextEmc()))
- {
- if ( emc->GetPHOSMod() == module )
- {
- fhEmcCluster->Fill( emc->GetTotalEnergy() );
- TIter nextPpsd( *fPHOS->PpsdRecPoints()) ;
- while((ppsd = (AliPHOSPpsdRecPoint *)nextPpsd()))
- {
- if ( ppsd->GetPHOSMod() == module )
- {
- if (!ppsd->GetUp()) fhConvertorEmc->Fill(emc->GetTotalEnergy(),ppsd->GetTotalEnergy()) ;
- }
- }
- }
- }
-
- //=========== Cluster in module PPSD Down
- TIter nextPpsd(*fPHOS->PpsdRecPoints() ) ;
- while((ppsd = (AliPHOSPpsdRecPoint *)nextPpsd()))
- {
- if ( ppsd->GetPHOSMod() == module )
- {
- if (!ppsd->GetUp()) fhConvertorCluster->Fill(ppsd->GetTotalEnergy()) ;
- if (ppsd->GetUp()) fhVetoCluster ->Fill(ppsd->GetTotalEnergy()) ;
- }
- }
-
- //========== TRackSegments in the event
- TIter nextRecParticle(*fPHOS->RecParticles() ) ;
- while((recparticle = (AliPHOSRecParticle *)nextRecParticle()))
- {
- if ( recparticle->GetPHOSTrackSegment()->GetPHOSMod() == module )
- {
- cout << "Particle type is " << recparticle->GetType() << endl ;
- Int_t numberofprimaries = 0 ;
- Int_t * listofprimaries = recparticle->GetPrimaries(numberofprimaries) ;
- cout << "Number of primaries = " << numberofprimaries << endl ;
- Int_t index ;
- for ( index = 0 ; index < numberofprimaries ; index++)
- cout << " primary # " << index << " = " << listofprimaries[index] << endl ;
- }
- }
- } // endfor
- SaveHistograms();
- } // endif
-} // endfunction
-
-//____________________________________________________________________________
- void AliPHOSAnalyze::Reconstruct(Int_t Nevents )
-{
- Int_t ievent ;
- for ( ievent=0; ievent<Nevents; ievent++)
- {
- if (ievent==0)
- {
- cout << "Analyze > Starting Reconstructing " << endl ;
- //========== Create the Clusterizer
- fClu = new AliPHOSClusterizerv1() ;
- fClu->SetEmcEnergyThreshold(0.05) ;
- fClu->SetEmcClusteringThreshold(0.20) ;
- fClu->SetPpsdEnergyThreshold (0.0000002) ;
- fClu->SetPpsdClusteringThreshold(0.0000001) ;
- fClu->SetLocalMaxCut(0.03) ;
- fClu->SetCalibrationParameters(0., 0.00000001) ;
-
- //========== Creates the track segment maker
- fTrs = new AliPHOSTrackSegmentMakerv1() ;
- // fTrs->UnsetUnfoldFlag() ;
+ //extract list of primaries: it is stored at EMC RecPoints
+ Int_t emcIndex = ((AliPHOSTrackSegment *) ts->At(recParticle->GetPHOSTSIndex()))->GetEmcIndex() ;
+ Int_t numberofprimaries ;
+ Int_t * listofprimaries = ((AliPHOSRecPoint*) emcrp->At(emcIndex))->GetPrimaries(numberofprimaries) ;
+ Int_t index ;
+ const TParticle * primary ;
+ Double_t distance = minDistance ;
- //========== Creates the particle identifier
- fPID = new AliPHOSPIDv1() ;
- fPID->SetShowerProfileCuts(0.3, 1.8, 0.3, 1.8 ) ;
+ for ( index = 0 ; index < numberofprimaries ; index++){
+ primary = gime->Primary(listofprimaries[index]) ;
+ Int_t moduleNumber ;
+ Double_t primX, primZ ;
+ phosgeom->ImpactOnEmc(primary->Theta(), primary->Phi(), moduleNumber, primX, primZ) ;
+ if(moduleNumberRec == moduleNumber)
+ distance = TMath::Sqrt((recX-primX)*(recX-primX)+(recZ-primZ)*(recZ-primZ) ) ;
+ if(minDistance > distance)
+ {
+ minDistance = distance ;
+ closestPrimary = listofprimaries[index] ;
+ }
+ }
- //========== Creates the Reconstructioner
- fRec = new AliPHOSReconstructioner(fClu, fTrs, fPID) ;
- // fRec -> SetDebugReconstruction(kTRUE);
-
+ if(closestPrimary >=0 ){
+
+ Int_t primaryType = gime->Primary(closestPrimary)->GetPdgCode() ;
+
+ if(primaryType==22)
+ recPhot->Fill(recZ,recX,recParticle->Energy()) ;
+// else
+// if(primaryType==-2112)
+// recNbar->Fill(recZ,recX,recParticle->Energy()) ;
+ }
}
-
- //========== Event Number>
- if ( ( log10((Float_t)(ievent+1)) - (Int_t)(log10((Float_t)(ievent+1))) ) == 0. )
- cout << "Analyze > Event is " << ievent << endl ;
-
- //=========== Connects the various Tree's for evt
- gAlice->GetEvent(ievent);
-
- //=========== Gets the Digit TTree
- gAlice->TreeD()->GetEvent(0) ;
-
- //=========== Do the reconstruction
- fPHOS->Reconstruction(fRec);
- }
-
- fClu->Delete();
- fTrs->Delete();
- fPID->Delete();
- fRec->Delete();
+ }
+ }
+
+ //Plot made histograms
+ emcSdigits->Draw("box") ;
+ emcDigits->SetLineColor(5) ;
+ emcDigits->Draw("boxsame") ;
+ emcRecPoints->SetLineColor(2) ;
+ emcRecPoints->Draw("boxsame") ;
+ cpvSdigits->SetLineColor(1) ;
+ cpvSdigits->Draw("boxsame") ;
+
}
-//-------------------------------------------------------------------------------------
-
-// TClonesArray AllDigitArray = TClonesArray("AliPHOSDigit",1000) ;
-// TClonesArray * PhotonsList ;
-// TClonesArray * FalsDigitsList ;
-// TClonesArray AllPrimary = TClonesArray("TParticle",5000) ;
-// TFile * file2 = new TFile("ph100.root") ; // file with added photons
-// gAlice = (AliRun*) file2->Get("gAlice") ;
-// Int_t ievent;
-// Int_t NDigits[Nevents+1] ;
-// NDigits[0]=0 ;
-// Int_t NAllDigits = 0;
-// Int_t NprimPerEvent = 20 ;
-// for (ievent=0; ievent <Nevents; ievent++)
-// {
-// PhotonsList = gAlice->Particles(); //Primary
-// FalsDigitsList = ((AliPHOSv1 *)gAlice->GetDetector("PHOS"))->Digits(); //Digits
-// gAlice->GetEvent(ievent) ;
-// gAlice->TreeD()->GetEvent(0) ;
-// gAlice->TreeK()->GetEvent(0) ;
-// //Copy Primary
-// Int_t Nprim ;
-// for(Nprim = 0 ;Nprim < NprimPerEvent ; Nprim++)
-// new (AllPrimary[Nprim+ievent*NprimPerEvent]) TParticle(*((TParticle *) PhotonsList->At(Nprim))) ;
-
-// //Copy Digits
-// TIter nextDigit(FalsDigitsList) ;
-// AliPHOSDigit * FalseDigit ;
-// NDigits[ievent+1] = NDigits[ievent]+ FalsDigitsList->GetEntriesFast() ;
-// while( (FalseDigit = (AliPHOSDigit *) nextDigit()))
-// {
-// new (AllDigitArray[NAllDigits]) AliPHOSDigit(FalseDigit->GetPrimary(1),FalseDigit->GetId(),FalseDigit->GetAmp()) ;
-// NAllDigits++ ;
-// }
-// }
-// file2->Close() ;
-
-
-
-// //Add primary particles
-// cout << "# of Primaries before add " << PrimaryList->GetEntriesFast() << endl;
-// Int_t NTruePrimary = 0 ; //PrimaryList->GetEntriesFast() ;
-// Int_t Nprim ;
-// for(Nprim = 0; Nprim < NprimPerEvent; Nprim++)
-// new ((*PrimaryList)[NTruePrimary+Nprim]) TParticle(*((TParticle *) AllPrimary.At(Nprim+ievent*NprimPerEvent))) ;
-
-// cout << "# of Primaries after add " << PrimaryList->GetEntriesFast() <<endl;
+//____________________________________________________________________________
+void AliPHOSAnalyze::Ls(){
+ //lists branches and titles of PHOS-related branches of TreeR, TreeD, TreeS
+
+ AliPHOSGetter::GetInstance(ffileName.Data()) ;
-// cout << "Digits before add " << DigitsList->GetEntries() << endl ;
-// cout << "Digits to add " << NDigits[ievent+1]- NDigits[ievent]<< endl ;
-
- //=========== Add fals digits ==============================
-// TIter nextDigit(DigitsList) ;
-// AliPHOSDigit * FalseDigit ;
-// AliPHOSDigit * RealDigit ;
-// Int_t NTrueDigits = DigitsList->GetEntriesFast() ;
-// Int_t Ndigit ;
-// for(Ndigit=NDigits[ievent];Ndigit<NDigits[ievent+1];Ndigit++)
-// {
-// FalseDigit = (AliPHOSDigit*) AllDigitArray.At(Ndigit) ;
-// Bool_t Add = kTRUE ;
-// AliPHOSDigit tmpDigit=AliPHOSDigit(FalseDigit->GetPrimary(1)+NTruePrimary,FalseDigit->GetId(),FalseDigit->GetAmp()) ;
-
-// while( (RealDigit = (AliPHOSDigit *) nextDigit()) && Add)
-// {
-// if((*RealDigit) == (tmpDigit))
-// {
-// *RealDigit=*RealDigit+tmpDigit ;
-// Add = kFALSE ;
-// }
-// }
-// if(Add)
-// {
-// new ((*DigitsList)[NTrueDigits]) AliPHOSDigit(FalseDigit->GetPrimary(1)+NTruePrimary,FalseDigit->GetId(),FalseDigit->GetAmp()) ;
-// ((AliPHOSDigit *)DigitsList->At(NTrueDigits))->SetIndexInList(NTrueDigits) ;
-// NTrueDigits++ ;
-// }
-// }
-// cout << "Digits after add " << DigitsList->GetEntries() << endl ;
+ Int_t ibranch;
+ TObjArray * branches;
+
+ branches = gAlice->TreeS()->GetListOfBranches() ;
+
+ cout << "TreeS: " << endl ;
+ for(ibranch = 0;ibranch <branches->GetEntries();ibranch++){
+ TBranch * branch=(TBranch *) branches->At(ibranch) ;
+ if(strstr(branch->GetName(),"PHOS") )
+ cout << " " << branch->GetName() << " " << branch->GetTitle() << endl ;
+ }
+ cout << endl ;
+
+ branches = gAlice->TreeD()->GetListOfBranches() ;
+
+ cout << "TreeD: " << endl ;
+ for(ibranch = 0;ibranch <branches->GetEntries();ibranch++){
+ TBranch * branch=(TBranch *) branches->At(ibranch) ;
+ if(strstr(branch->GetName(),"PHOS") )
+ cout << " " << branch->GetName() << " " << branch->GetTitle() << endl ;
+ }
+ cout << endl ;
+
+
+ branches = gAlice->TreeR()->GetListOfBranches() ;
+
+ cout << "TreeR: " << endl ;
+ for(ibranch = 0;ibranch <branches->GetEntries();ibranch++){
+ TBranch * branch=(TBranch *) branches->At(ibranch) ;
+ if(strstr(branch->GetName(),"PHOS") )
+ cout << " " << branch->GetName() << " " << branch->GetTitle() << endl ;
+ }
+ cout << endl ;
+}
//____________________________________________________________________________
- void AliPHOSAnalyze::AnalyzeResolutions(Int_t Nevents )
+ void AliPHOSAnalyze::InvariantMass(const char* branchTitle)
{
- // analyzes Nevents events and calculate Energy and Position resolution as well as
- // probaility of correct indentifiing of the incident particle
+ // Calculates Real and Mixed invariant mass distributions
+ AliPHOSGetter * gime = AliPHOSGetter::GetInstance(ffileName.Data(),branchTitle) ;
- //========== Booking Histograms
- cout << "AnalyzeResolutions > " << "Booking Histograms" << endl ;
- BookResolutionHistograms();
+ Int_t nMixedEvents = 4 ; //# of events used for calculation of 'mixed' distribution
- Int_t Counter[9][5] ;
- Int_t i1,i2,TotalInd = 0 ;
- for(i1 = 0; i1<9; i1++)
- for(i2 = 0; i2<5; i2++)
- Counter[i1][i2] = 0 ;
+ //opening file
+ TFile * mfile = new TFile("invmass.root","update");
+
+ //========== Reading /Booking Histograms
+ TH2D * hRealEM = 0 ;
+ hRealEM = (TH2D*) mfile->Get("hRealEM") ;
+ if(hRealEM == 0)
+ hRealEM = new TH2D("hRealEM", "Real for EM particles", 250,0.,1.,40,0.,4.) ;
+ TH2D * hRealPhot = 0 ;
+
+ hRealPhot = (TH2D*)mfile->Get("hRealPhot");
+ if(hRealPhot == 0)
+ hRealPhot = new TH2D("hRealPhot", "Real for kPhoton particles", 250,0.,1.,40,0.,4.) ;
+
+ TH2D * hMixedEM = 0 ;
+ hMixedEM = (TH2D*) mfile->Get("hMixedEM") ;
+ if(hMixedEM == 0)
+ hMixedEM = new TH2D("hMixedEM", "Mixed for EM particles", 250,0.,1.,40,0.,4.) ;
+
+ TH2D * hMixedPhot = 0 ;
+ hMixedPhot = (TH2D*) mfile->Get("hMixedPhot") ;
+ if(hMixedPhot == 0)
+ hMixedPhot = new TH2D("hMixedPhot","Mixed for kPhoton particles",250,0.,1.,40,0.,4.) ;
- Int_t TotalPrimary = 0 ;
- Int_t TotalRecPart = 0 ;
- Int_t TotalRPwithPrim = 0 ;
- Int_t ievent;
- cout << "Start Analysing"<< endl ;
- for ( ievent=0; ievent<Nevents; ievent++)
- {
-
- //========== Event Number>
- if ( ( log10((Float_t)(ievent+1)) - (Int_t)(log10((Float_t)(ievent+1))) ) == 0. )
- cout << "AnalyzeResolutions > " << "Event is " << ievent << endl ;
-
- //=========== Connects the various Tree's for evt
- gAlice->GetEvent(ievent);
+ //reading event and copyng it to TConesArray of all photons
-
+ TClonesArray * allRecParticleList = new TClonesArray("AliPHOSRecParticle", 1000) ;
+ Int_t * nRecParticles = new Int_t[nMixedEvents] ; // to mark boundaries of each event in the total list
+ for(Int_t index = 0; index < nMixedEvents; index ++)
+ nRecParticles[index] = 0 ;
+ Int_t iRecPhot = 0 ; // number of EM particles in total list
+
+ //scan over all events
+ Int_t event ;
+ Int_t maxevent = (Int_t)gAlice->TreeE()->GetEntries() ;
+ // for(event = 0; event < gime->MaxEvent(); event++ ){
+ for(event = 0; event < maxevent; event++ ){
+ gime->Event(event,"R"); //will read only TreeR
+
+ //copy EM RecParticles to the "total" list
+ const AliPHOSRecParticle * recParticle ;
+ Int_t iRecParticle ;
+ TClonesArray * rp = gime->RecParticles() ;
+ if(!rp){
+ cout << "AliPHOSAnalyze::InvariantMass --> Can't find RecParticles " << endl ;
+ return ;
+ }
- //=========== Gets the Kine TTree
- gAlice->TreeK()->GetEvent(0) ;
+ for(iRecParticle = 0; iRecParticle < rp->GetEntriesFast(); iRecParticle++ )
+ {
+ recParticle = (AliPHOSRecParticle *) rp->At(iRecParticle) ;
+ if((recParticle->GetType() == AliPHOSFastRecParticle::kNEUTRALEMFAST)||
+ (recParticle->GetType() == AliPHOSFastRecParticle::kNEUTRALEMSLOW))
+ new( (*allRecParticleList)[iRecPhot++] ) AliPHOSRecParticle(*recParticle) ;
+ }
+
+ Int_t mevent = event%nMixedEvents ; //event number in the "mixed" cicle
+ nRecParticles[mevent] = iRecPhot-1 ;
+
+ //check, if it is time to calculate invariant mass?
+ Int_t maxevent = (Int_t)gAlice->TreeE()->GetEntries() ;
+ if((mevent == 0) && (event +1 == maxevent)){
- //=========== Gets the list of Primari Particles
- TClonesArray * PrimaryList = gAlice->Particles();
-
- TParticle * Primary ;
- Int_t iPrimary ;
- for ( iPrimary = 0 ; iPrimary < PrimaryList->GetEntries() ; iPrimary++)
- {
- Primary = (TParticle*)PrimaryList->UncheckedAt(iPrimary) ;
- Int_t PrimaryType = Primary->GetPdgCode() ;
- if( PrimaryType == 22 )
- fhPrimary->Fill(Primary->Energy()) ;
- }
+ // if((mevent == 0) && (event +1 == gime->MaxEvent())){
- //=========== Get the Digit Tree
- gAlice->TreeD()->GetEvent(0) ;
-
- //========== Creating branches ===================================
- AliPHOSRecPoint::RecPointsList ** EmcRecPoints = fPHOS->EmcRecPoints() ;
- gAlice->TreeR()->SetBranchAddress( "PHOSEmcRP", EmcRecPoints ) ;
-
- AliPHOSRecPoint::RecPointsList ** PpsdRecPoints = fPHOS->PpsdRecPoints() ;
- gAlice->TreeR()->SetBranchAddress( "PHOSPpsdRP", PpsdRecPoints ) ;
-
- AliPHOSTrackSegment::TrackSegmentsList ** TrackSegmentsList = fPHOS->TrackSegments() ;
- if( (*TrackSegmentsList) )
- (*TrackSegmentsList)->Clear() ;
- gAlice->TreeR()->SetBranchAddress( "PHOSTS", TrackSegmentsList ) ;
+ //calculate invariant mass:
+ Int_t irp1,irp2 ;
+ Int_t nCurEvent = 0 ;
- AliPHOSRecParticle::RecParticlesList ** RecParticleList = fPHOS->RecParticles() ;
- if( (*RecParticleList) )
- (*RecParticleList)->Clear() ;
- gAlice->TreeR()->SetBranchAddress( "PHOSRP", RecParticleList ) ;
-
-
- //=========== Gets the Reconstraction TTree
- gAlice->TreeR()->GetEvent(0) ;
-
- cout << ievent << " " << (*EmcRecPoints) << " " <<(*PpsdRecPoints) <<fPHOS->Digits()<< endl ;
- cout << " " << " " << (*EmcRecPoints)->GetEntries() << " " <<(*PpsdRecPoints)->GetEntries() <<fPHOS->Digits()->GetEntries()<< endl ;
-
- AliPHOSRecParticle * RecParticle ;
- Int_t iRecParticle ;
- for(iRecParticle = 0; iRecParticle < (*RecParticleList)->GetEntries() ;iRecParticle++ )
- {
- RecParticle = (AliPHOSRecParticle *) (*RecParticleList)->At(iRecParticle) ;
+ for(irp1 = 0; irp1 < allRecParticleList->GetEntries()-1; irp1++){
+ AliPHOSRecParticle * rp1 = (AliPHOSRecParticle *)allRecParticleList->At(irp1) ;
+
+ for(irp2 = irp1+1; irp2 < allRecParticleList->GetEntries(); irp2++){
+ AliPHOSRecParticle * rp2 = (AliPHOSRecParticle *)allRecParticleList->At(irp2) ;
- Int_t ModuleNumberRec ;
- Double_t RecX, RecZ ;
- fGeom->ImpactOnEmc(RecParticle->Theta(), RecParticle->Phi(), ModuleNumberRec, RecX, RecZ) ;
+ Double_t invMass ;
+ invMass = (rp1->Energy()+rp2->Energy())*(rp1->Energy()+rp2->Energy())-
+ (rp1->Px()+rp2->Px())*(rp1->Px()+rp2->Px())-
+ (rp1->Py()+rp2->Py())*(rp1->Py()+rp2->Py())-
+ (rp1->Pz()+rp2->Pz())*(rp1->Pz()+rp2->Pz()) ;
- Double_t MinDistance = 10000 ;
- Int_t ClosestPrimary = -1 ;
+ if(invMass> 0)
+ invMass = TMath::Sqrt(invMass);
- Int_t numberofprimaries ;
- Int_t * listofprimaries = RecParticle->GetPrimaries(numberofprimaries) ;
- Int_t index ;
- TParticle * Primary ;
- Double_t Distance = MinDistance ;
- for ( index = 0 ; index < numberofprimaries ; index++)
- {
- Primary = (TParticle*)PrimaryList->UncheckedAt(listofprimaries[index]) ;
- Int_t ModuleNumber ;
- Double_t PrimX, PrimZ ;
- fGeom->ImpactOnEmc(Primary->Theta(), Primary->Phi(), ModuleNumber, PrimX, PrimZ) ;
- if(ModuleNumberRec == ModuleNumber)
- Distance = TMath::Sqrt((RecX-PrimX)*(RecX-PrimX)+(RecZ-PrimZ)*(RecZ-PrimZ) ) ;
- if(MinDistance > Distance)
- {
- MinDistance = Distance ;
- ClosestPrimary = listofprimaries[index] ;
- }
- }
- TotalRecPart++ ;
- if(ClosestPrimary >=0 )
- {
- fhPhotonAllEnergy->Fill(((TParticle *) PrimaryList->At(ClosestPrimary))->Energy(), RecParticle->Energy() ) ;
- fhPhotonAllPosition->Fill(((TParticle *) PrimaryList->At(ClosestPrimary))->Energy(),Distance) ;
- TotalRPwithPrim++;
- Int_t PrimaryType = ((TParticle *)PrimaryList->At(ClosestPrimary))->GetPdgCode() ;
- TParticlePDG* PDGparticle = ((TParticle *)PrimaryList->At(ClosestPrimary))->GetPDG();
- Double_t charge = PDGparticle->Charge() ;
- Int_t PrimaryCode ;
- switch(PrimaryType)
- {
- case 22:
- PrimaryCode = 0; //Photon
- break;
- case 11 :
- PrimaryCode = 1; //Electron
- break;
- case -11 :
- PrimaryCode = 1; //positron
- break;
- case 321 :
- PrimaryCode = 4; //K+
- break;
- case -321 :
- PrimaryCode = 4; //K-
- break;
- case 310 :
- PrimaryCode = 4; //K0s
- break;
- case 130 :
- PrimaryCode = 4; //K0l
- break;
- default:
- if(charge)
- PrimaryCode = 2; //Charged hadron
- else
- PrimaryCode = 3; //Neutral hadron
- break;
- }
-
- switch(RecParticle->GetType())
- {
- case AliPHOSFastRecParticle::kGAMMA:
- if(PrimaryType == 22){
- fhPhotonEnergy->Fill(((TParticle *) PrimaryList->At(ClosestPrimary))->Energy(), RecParticle->Energy() ) ;
- fhPhotonPosition->Fill(((TParticle *) PrimaryList->At(ClosestPrimary))->Energy(),Distance) ;
- fhPhotonReg->Fill(RecParticle->Energy() ) ;
- fhPhotonEM->Fill(RecParticle->Energy() ) ;
- fhPhotPhot->Fill(RecParticle->Energy() ) ;
- }
- if(PrimaryType == 2112){ //neutron
- fhNReg->Fill(RecParticle->Energy() ) ;
- fhNEM->Fill(RecParticle->Energy() ) ;
- }
-
- if(PrimaryType == -2112){ //neutron ~
- fhNBarReg->Fill(RecParticle->Energy() ) ;
- fhNBarEM->Fill(RecParticle->Energy() ) ;
-
- }
- if(PrimaryCode == 2){
- fhChargedReg->Fill(RecParticle->Energy() ) ;
- fhChargedEM->Fill(RecParticle->Energy() ) ;
- }
-
- fhAllReg->Fill(RecParticle->Energy() ) ;
- fhAllEM->Fill(RecParticle->Energy() ) ;
- Counter[0][PrimaryCode]++;
- break;
- case AliPHOSFastRecParticle::kELECTRON:
- if(PrimaryType == 11 || PrimaryType == -11){
- fhElectronEnergy->Fill(((TParticle *)PrimaryList->At(ClosestPrimary))->Energy(), RecParticle->Energy() ) ;
- fhElectronPosition->Fill(((TParticle *)PrimaryList->At(ClosestPrimary))->Energy(),Distance ) ;
- }
- if(PrimaryType == 22)
- fhPhotElec->Fill(RecParticle->Energy() ) ;
-
- Counter[1][PrimaryCode]++;
- break;
- case AliPHOSFastRecParticle::kNEUTRALHA:
- if(PrimaryType == 22)
- fhPhotNeuH->Fill(RecParticle->Energy() ) ;
-
- fhNeutralHadronEnergy->Fill( ((TParticle *)PrimaryList->At(ClosestPrimary))->Energy(), RecParticle->Energy()) ;
- fhNeutralHadronPosition->Fill(((TParticle *)PrimaryList->At(ClosestPrimary))->Energy() ,Distance ) ;
- Counter[2][PrimaryCode]++;
- break ;
- case AliPHOSFastRecParticle::kNEUTRALEM:
- if(PrimaryType == 22 || PrimaryType == 11 || PrimaryType == -11){
- fhNeutralEMEnergy->Fill(((TParticle *)PrimaryList->At(ClosestPrimary))->Energy(),RecParticle->Energy() ) ;
- fhNeutralEMPosition->Fill(((TParticle *)PrimaryList->At(ClosestPrimary))->Energy(),Distance ) ;
- }
-
- if(PrimaryType == 22){ //photon
- fhPhotNuEM->Fill(RecParticle->Energy() ) ;
- fhPhotonEM->Fill(RecParticle->Energy() ) ;
- }
- if(PrimaryType == 2112) //neutron
- fhNEM->Fill(RecParticle->Energy() ) ;
-
- if(PrimaryType == -2112) //neutron ~
- fhNBarEM->Fill(RecParticle->Energy() ) ;
-
- if(PrimaryCode == 2)
- fhChargedEM->Fill(RecParticle->Energy() ) ;
-
- fhAllEM->Fill(RecParticle->Energy() ) ;
-
- Counter[3][PrimaryCode]++;
- break ;
- case AliPHOSFastRecParticle::kCHARGEDHA:
- if(PrimaryType == 22) //photon
- fhPhotChHa->Fill(RecParticle->Energy() ) ;
-
- fhChargedHadronEnergy->Fill(((TParticle *)PrimaryList->At(ClosestPrimary))->Energy(),RecParticle->Energy() ) ;
- fhChargedHadronPosition->Fill(((TParticle *)PrimaryList->At(ClosestPrimary))->Energy(),Distance ) ;
- Counter[4][PrimaryCode]++ ;
- break ;
- case AliPHOSFastRecParticle::kGAMMAHA:
- if(PrimaryType == 22) //photon
- fhPhotGaHa->Fill(RecParticle->Energy() ) ;
- fhPhotonHadronEnergy->Fill(((TParticle *)PrimaryList->At(ClosestPrimary))->Energy(), RecParticle->Energy()) ;
- fhPhotonHadronPosition->Fill(((TParticle *)PrimaryList->At(ClosestPrimary))->Energy(),Distance ) ;
- Counter[5][PrimaryCode]++ ;
- break ;
- case AliPHOSFastRecParticle::kABSURDEM:
- Counter[6][PrimaryCode]++ ;
- break;
- case AliPHOSFastRecParticle::kABSURDHA:
- Counter[7][PrimaryCode]++ ;
- break;
- default:
- Counter[8][PrimaryCode]++ ;
- break;
- }
- }
- }
- } // endfor
- SaveHistograms();
- cout << "Resolutions: Analyzed " << Nevents << " event(s)" << endl ;
- cout << "Resolutions: Total primary " << TotalPrimary << endl ;
- cout << "Resoluitons: Total reconstracted " << TotalRecPart << endl ;
- cout << "TotalReconstructed with Primarie " << TotalRPwithPrim << endl ;
- cout << " Primary: Photon Electron Ch. Hadr. Neutr. Hadr Kaons" << endl ;
- cout << " Detected as photon " << Counter[0][0] << " " << Counter[0][1] << " " << Counter[0][2] << " " <<Counter[0][3] << " " << Counter[0][4] << endl ;
- cout << " Detected as electron " << Counter[1][0] << " " << Counter[1][1] << " " << Counter[1][2] << " " <<Counter[1][3] << " " << Counter[1][4] << endl ;
- cout << " Detected as neutral hadron " << Counter[2][0] << " " << Counter[2][1] << " " << Counter[2][2] << " " <<Counter[2][3] << " " << Counter[2][4] << endl ;
- cout << " Detected as neutral EM " << Counter[3][0] << " " << Counter[3][1] << " " << Counter[3][2] << " " <<Counter[3][3] << " " << Counter[3][4] << endl ;
- cout << " Detected as charged hadron " << Counter[4][0] << " " << Counter[4][1] << " " << Counter[4][2] << " " <<Counter[4][3] << " " << Counter[4][4] << endl ;
- cout << " Detected as gamma-hadron " << Counter[5][0] << " " << Counter[5][1] << " " << Counter[5][2] << " " <<Counter[5][3] << " " << Counter[5][4] << endl ;
- cout << " Detected as Absurd EM " << Counter[6][0] << " " << Counter[6][1] << " " << Counter[6][2] << " " <<Counter[6][3] << " " << Counter[6][4] << endl ;
- cout << " Detected as absurd hadron " << Counter[7][0] << " " << Counter[7][1] << " " << Counter[7][2] << " " <<Counter[7][3] << " " << Counter[7][4] << endl ;
- cout << " Detected as undefined " << Counter[8][0] << " " << Counter[8][1] << " " << Counter[8][2] << " " <<Counter[8][3] << " " << Counter[8][4] << endl ;
+ Double_t pt ;
+ pt = TMath::Sqrt((rp1->Px()+rp2->Px() )*( rp1->Px()+rp2->Px() ) +
+ (rp1->Py()+rp2->Py() )*( rp1->Py()+rp2->Py() ) );
+
+ if(irp1 > nRecParticles[nCurEvent])
+ nCurEvent++;
+
+ if(irp2 <= nRecParticles[nCurEvent]){ //'Real' event
+ hRealEM->Fill(invMass,pt);
+ if((rp1->GetType() == AliPHOSFastRecParticle::kNEUTRALEMFAST)&&
+ (rp2->GetType() == AliPHOSFastRecParticle::kNEUTRALEMFAST) )
+ hRealPhot->Fill(invMass,pt);
+ }
+ else{
+ hMixedEM->Fill(invMass,pt);
+ if((rp1->GetType() == AliPHOSFastRecParticle::kNEUTRALEMFAST)&&
+ (rp2->GetType() == AliPHOSFastRecParticle::kNEUTRALEMFAST) )
+ hMixedPhot->Fill(invMass,pt);
+ } //real-mixed
+
+ } //loop over second rp
+ }//loop over first rp
- for(i1 = 0; i1<9; i1++)
- for(i2 = 0; i2<5; i2++)
- TotalInd+=Counter[i1][i2] ;
- cout << "Indentified particles " << TotalInd << endl ;
+ //Make some cleanings
+ for(Int_t index = 0; index < nMixedEvents; index ++)
+ nRecParticles[index] = 0 ;
+ iRecPhot = 0 ;
+ allRecParticleList->Clear() ;
-} // endfunction
-
-
-//____________________________________________________________________________
-void AliPHOSAnalyze::BookingHistograms()
-{
- // Books the histograms where the results of the analysis are stored (to be changed)
-
- delete fhEmcDigit ;
- delete fhVetoDigit ;
- delete fhConvertorDigit ;
- delete fhEmcCluster ;
- delete fhVetoCluster ;
- delete fhConvertorCluster ;
- delete fhConvertorEmc ;
-
- fhEmcDigit = new TH1F("hEmcDigit", "hEmcDigit", 1000, 0. , 25.);
- fhVetoDigit = new TH1F("hVetoDigit", "hVetoDigit", 500, 0. , 3.e-5);
- fhConvertorDigit = new TH1F("hConvertorDigit","hConvertorDigit", 500, 0. , 3.e-5);
- fhEmcCluster = new TH1F("hEmcCluster", "hEmcCluster", 1000, 0. , 30.);
- fhVetoCluster = new TH1F("hVetoCluster", "hVetoCluster", 500, 0. , 3.e-5);
- fhConvertorCluster = new TH1F("hConvertorCluster","hConvertorCluster",500, 0. , 3.e-5);
- fhConvertorEmc = new TH2F("hConvertorEmc", "hConvertorEmc", 200, 1. , 3., 200, 0., 3.e-5);
-
-}
-//____________________________________________________________________________
-void AliPHOSAnalyze::BookResolutionHistograms()
-{
- // Books the histograms where the results of the Resolution analysis are stored
-
- if(fhPhotonEnergy)
- delete fhPhotonEnergy ;
- if(fhPhotonAllEnergy)
- delete fhPhotonAllEnergy ;
- if(fhElectronEnergy)
- delete fhElectronEnergy ;
- if(fhElectronAllEnergy)
- delete fhElectronAllEnergy ;
- if(fhNeutralHadronEnergy)
- delete fhNeutralHadronEnergy ;
- if(fhNeutralEMEnergy)
- delete fhNeutralEMEnergy ;
- if(fhNeutralEMAllEnergy)
- delete fhNeutralEMAllEnergy ;
- if(fhChargedHadronEnergy)
- delete fhChargedHadronEnergy ;
- if(fhPhotonHadronEnergy)
- delete fhPhotonHadronEnergy ;
- if(fhPhotonPosition)
- delete fhPhotonPosition ;
- if(fhPhotonAllPosition)
- delete fhPhotonAllPosition ;
- if(fhElectronPosition)
- delete fhElectronPosition ;
- if(fhElectronAllPosition)
- delete fhElectronAllPosition ;
- if(fhNeutralHadronPosition)
- delete fhNeutralHadronPosition ;
- if(fhNeutralEMPosition)
- delete fhNeutralEMPosition ;
- if(fhNeutralEMAllPosition)
- delete fhNeutralEMAllPosition ;
- if(fhChargedHadronPosition)
- delete fhChargedHadronPosition ;
- if(fhPhotonHadronPosition)
- delete fhPhotonHadronPosition ;
-
- fhPhotonEnergy = new TH2F("hPhotonEnergy", "hPhotonEnergy", 100, 0., 5., 100, 0., 5.);
- fhPhotonAllEnergy = new TH2F("hPhotonAllEnergy", "hPhotonAllEnergy", 100, 0., 5., 100, 0., 5.);
- fhElectronEnergy = new TH2F("hElectronEnergy","hElectronEnergy", 100, 0., 5., 100, 0., 5.);
- fhElectronAllEnergy = new TH2F("hElectronAllEnergy","hElectronAllEnergy", 100, 0., 5., 100, 0., 5.);
- fhNeutralHadronEnergy = new TH2F("hNeutralHadronEnergy", "hNeutralHadronEnergy", 100, 0., 5., 100, 0., 5.);
- fhNeutralEMEnergy = new TH2F("hNeutralEMEnergy", "hNeutralEMEnergy", 100, 0., 5., 100, 0., 5.);
- fhNeutralEMAllEnergy = new TH2F("hNeutralEMAllEnergy", "hNeutralEMAllEnergy", 100, 0., 5., 100, 0., 5.);
- fhChargedHadronEnergy = new TH2F("hChargedHadronEnergy", "hChargedHadronEnergy", 100, 0., 5., 100, 0., 5.);
- fhPhotonHadronEnergy = new TH2F("hPhotonHadronEnergy","hPhotonHadronEnergy", 100, 0., 5., 100, 0., 5.);
- fhPhotonPosition = new TH2F("hPhotonPosition","hPhotonPosition", 20, 0., 5., 100, 0., 5.);
- fhPhotonAllPosition = new TH2F("hPhotonAllPosition","hPhotonAllPosition", 20, 0., 5., 100, 0., 5.);
- fhElectronPosition = new TH2F("hElectronPosition","hElectronPosition", 20, 0., 5., 100, 0., 5.);
- fhElectronAllPosition = new TH2F("hElectronAllPosition","hElectronAllPosition", 20, 0., 5., 100, 0., 5.);
- fhNeutralHadronPosition = new TH2F("hNeutralHadronPosition","hNeutralHadronPosition", 20, 0., 5., 100, 0., 5.);
- fhNeutralEMPosition = new TH2F("hNeutralEMPosition","hNeutralEMPosition", 20, 0., 5., 100, 0., 5.);
- fhNeutralEMAllPosition = new TH2F("hNeutralEMAllPosition","hNeutralEMAllPosition", 20, 0., 5., 100, 0., 5.);
- fhChargedHadronPosition = new TH2F("hChargedHadronPosition","hChargedHadronPosition", 20, 0., 5., 100, 0., 5.);
- fhPhotonHadronPosition = new TH2F("hPhotonHadronPosition","hPhotonHadronPosition", 20, 0., 5., 100, 0., 5.);
-
- if(fhPhotonReg)
- delete fhPhotonReg ;
- if(fhAllReg)
- delete fhAllReg ;
- if(fhNReg)
- delete fhNReg ;
- if(fhNReg)
- delete fhNReg ;
- if(fhNReg)
- delete fhNReg ;
-
- fhPhotonReg = new TH1F("hPhotonReg","hPhotonReg", 20, 0., 5.);
- fhAllReg = new TH1F("hAllReg", "hAllReg", 20, 0., 5.);
- fhNReg = new TH1F("hNReg", "hNReg", 20, 0., 5.);
- fhNBarReg = new TH1F("hNBarReg", "hNBarReg", 20, 0., 5.);
- fhChargedReg= new TH1F("hChargedReg", "hChargedReg", 20, 0., 5.);
+ }
+ }
+ delete allRecParticleList ;
- if(fhPhotonEM)
- delete fhPhotonEM ;
- if(fhAllEM)
- delete fhAllEM ;
- if(fhNEM)
- delete fhNEM ;
- if(fhNBarEM)
- delete fhNBarEM ;
- if(fhChargedEM)
- delete fhChargedEM ;
+ //writing output
+ mfile->cd();
- fhPhotonEM = new TH1F("hPhotonEM","hPhotonEM", 20, 0., 5.);
- fhAllEM = new TH1F("hAllEM", "hAllEM", 20, 0., 5.);
- fhNEM = new TH1F("hNEM", "hNEM", 20, 0., 5.);
- fhNBarEM = new TH1F("hNBarEM", "hNBarEM", 20, 0., 5.);
- fhChargedEM= new TH1F("hChargedEM", "hChargedEM", 20, 0., 5.);
+ hRealEM->Write(0,kOverwrite) ;
+ hRealPhot->Write(0,kOverwrite) ;
+ hMixedEM->Write(0,kOverwrite) ;
+ hMixedPhot->Write(0,kOverwrite) ;
- if(fhPrimary)
- delete fhPrimary ;
- fhPrimary= new TH1F("hPrimary", "hPrimary", 20, 0., 5.);
-
- if(fhPhotPhot)
- delete fhPhotPhot ;
- if(fhPhotElec)
- delete fhPhotElec ;
- if(fhPhotNeuH)
- delete fhPhotNeuH ;
- if(fhPhotNuEM)
- delete fhPhotNuEM ;
- if(fhPhotChHa)
- delete fhPhotChHa ;
- if(fhPhotGaHa)
- delete fhPhotGaHa ;
-
- fhPhotPhot = new TH1F("hPhotPhot","hPhotPhot", 20, 0., 5.); //Photon registered as photon
- fhPhotElec = new TH1F("hPhotElec","hPhotElec", 20, 0., 5.); //Photon registered as Electron
- fhPhotNeuH = new TH1F("hPhotNeuH","hPhotNeuH", 20, 0., 5.); //Photon registered as Neutral Hadron
- fhPhotNuEM = new TH1F("hPhotNuEM","hPhotNuEM", 20, 0., 5.); //Photon registered as Neutral EM
- fhPhotChHa = new TH1F("hPhotChHa","hPhotChHa", 20, 0., 5.); //Photon registered as Charged Hadron
- fhPhotGaHa = new TH1F("hPhotGaHa","hPhotGaHa", 20, 0., 5.); //Photon registered as Gamma-Hadron
-
+ mfile->Write();
+ mfile->Close();
+ delete mfile ;
+ delete nRecParticles;
}
+
//____________________________________________________________________________
-Bool_t AliPHOSAnalyze::Init(Int_t evt)
+ void AliPHOSAnalyze::EnergyResolution(const char * branchTitle)
{
- // Do a few initializations: open the root file
- // get the AliRun object
- // defines the clusterizer, tracksegment maker and particle identifier
- // sets the associated parameters
+ //fills two dimentional histo: energy of primary vs. energy of reconstructed
- Bool_t ok = kTRUE ;
-
- //========== Open galice root file
-
- if ( fRootFile == 0 ) {
- Text_t * name = new Text_t[80] ;
- cout << "AnalyzeOneEvent > Enter file root file name : " ;
- cin >> name ;
- Bool_t ok = OpenRootFile(name) ;
- if ( !ok )
- cout << " AliPHOSAnalyze > Error opening " << name << endl ;
- else {
- //========== Get AliRun object from file
+ TH2F * hAllEnergy = 0 ; //all reconstructed with primary photon
+ TH2F * hPhotEnergy= 0 ; //kGamma with primary photon
+ TH2F * hEMEnergy = 0 ; //electromagnetic with primary photon
+
+ //opening file and reading histograms if any
+ TFile * efile = new TFile("energy.root","update");
+
+ hAllEnergy = (TH2F*)efile->Get("hAllEnergy") ;
+ if(hAllEnergy == 0)
+ hAllEnergy = new TH2F("hAllEnergy", "Energy of any RP with primary photon",100, 0., 5., 100, 0., 5.);
+
+ hPhotEnergy =(TH2F*) efile->Get("hPhotEnergy") ;
+ if(hPhotEnergy == 0)
+ hPhotEnergy = new TH2F("hPhotEnergy", "Energy of kGAMMA with primary photon",100, 0., 5., 100, 0., 5.);
+
+ hEMEnergy =(TH2F*) efile->Get("hEMEnergy");
+ if(hEMEnergy == 0)
+ hEMEnergy = new TH2F("hEMEnergy", "Energy of EM with primary photon", 100, 0., 5., 100, 0., 5.);
+
+
+ AliPHOSGetter * gime = AliPHOSGetter::GetInstance(ffileName.Data(),branchTitle) ;
+ const AliPHOSGeometry * phosgeom = gime->PHOSGeometry() ;
+
+ Int_t ievent;
+ Int_t maxevent = (Int_t)gAlice->TreeE()->GetEntries() ;
+ for ( ievent=0; ievent < maxevent ; ievent++){
+
+ //read the current event
+ gime->Event(ievent) ;
+
+ const AliPHOSRecParticle * recParticle ;
+ Int_t iRecParticle ;
+ TClonesArray * rp = gime->RecParticles() ;
+ if(!rp) {
+ cout << "AliPHOSAnalyze::EnergyResolution --> Event " <<ievent
+ << ", Can't find RecParticles " << endl ;
+ return ;
+ }
+ TClonesArray * ts = gime->TrackSegments() ;
+ if(!ts) {
+ cout << "AliPHOSAnalyze::EnergyResolution --> Event " <<ievent
+ << ", Can't find TrackSegments " << endl ;
+ return ;
+ }
+ TObjArray * emcrp = gime->EmcRecPoints() ;
+ if(!emcrp){
+ cout << "AliPHOSAnalyze::EnergyResolution --> Event " <<ievent
+ << ", Can't find EmcRecPoints " << endl ;
+ return ;
+ }
- gAlice = (AliRun*) fRootFile->Get("gAlice") ;
+ for(iRecParticle = 0; iRecParticle < rp->GetEntriesFast() ;iRecParticle++ ){
+ recParticle = (AliPHOSRecParticle *) rp->At(iRecParticle) ;
- //=========== Get the PHOS object and associated geometry from the file
+ //find the closest primary
+ Int_t moduleNumberRec ;
+ Double_t recX, recZ ;
+ phosgeom->ImpactOnEmc(recParticle->Theta(), recParticle->Phi(), moduleNumberRec, recX, recZ) ;
- fPHOS = (AliPHOSv1 *)gAlice->GetDetector("PHOS") ;
- fGeom = fPHOS->GetGeometry();
- // fGeom = AliPHOSGeometry::GetInstance( fPHOS->GetGeometry()->GetName(), fPHOS->GetGeometry()->GetTitle() );
-
- } // else !ok
- } // if fRootFile
-
- if ( ok ) {
-
- //========== Create the Clusterizer
-
- fClu = new AliPHOSClusterizerv1() ;
- fClu->SetEmcEnergyThreshold(0.030) ;
- fClu->SetEmcClusteringThreshold(0.20) ;
- fClu->SetPpsdEnergyThreshold (0.0000002) ;
- fClu->SetPpsdClusteringThreshold(0.0000001) ;
- fClu->SetLocalMaxCut(0.03) ;
- fClu->SetCalibrationParameters(0., 0.00000001) ;
- cout << "AnalyzeOneEvent > using clusterizer " << fClu->GetName() << endl ;
- fClu->PrintParameters() ;
-
- //========== Creates the track segment maker
-
- fTrs = new AliPHOSTrackSegmentMakerv1() ;
- cout << "AnalyzeOneEvent > using tack segment maker " << fTrs->GetName() << endl ;
- // fTrs->UnsetUnfoldFlag() ;
-
- //========== Creates the particle identifier
-
- fPID = new AliPHOSPIDv1() ;
- cout << "AnalyzeOneEvent > using particle identifier " << fPID->GetName() << endl ;
- //fPID->SetShowerProfileCuts(Float_t l1m, Float_t l1M, Float_t l2m, Float_t l2M) ;
- fPID->SetShowerProfileCuts(0.7, 2.0 , 0.6 , 1.5) ;
+ Double_t minDistance = 100. ;
+ Int_t closestPrimary = -1 ;
+
+ //extract list of primaries: it is stored at EMC RecPoints
+ Int_t emcIndex = ((AliPHOSTrackSegment*) ts->At(recParticle->GetPHOSTSIndex()))->GetEmcIndex() ;
+ Int_t numberofprimaries ;
+ Int_t * listofprimaries = ((AliPHOSEmcRecPoint*) emcrp->At(emcIndex))->GetPrimaries(numberofprimaries) ;
+
+ Int_t index ;
+ const TParticle * primary ;
+ Double_t distance = minDistance ;
+ Double_t dX, dZ;
+ Double_t dXmin = 0.;
+ Double_t dZmin = 0. ;
+ for ( index = 0 ; index < numberofprimaries ; index++){
+ primary = gime->Primary(listofprimaries[index]) ;
+ Int_t moduleNumber ;
+ Double_t primX, primZ ;
+ phosgeom->ImpactOnEmc(primary->Theta(), primary->Phi(), moduleNumber, primX, primZ) ;
+ if(moduleNumberRec == moduleNumber) {
+ dX = recX - primX;
+ dZ = recZ - primZ;
+ distance = TMath::Sqrt(dX*dX + dZ*dZ) ;
+ if(minDistance > distance) {
+ minDistance = distance ;
+ dXmin = dX;
+ dZmin = dZ;
+ closestPrimary = listofprimaries[index] ;
+ }
+ }
+ }
- //========== Creates the Reconstructioner
-
- fRec = new AliPHOSReconstructioner(fClu, fTrs, fPID) ;
- fRec -> SetDebugReconstruction(kFALSE);
-
- //=========== Connect the various Tree's for evt
-
- if ( evt == -999 ) {
- cout << "AnalyzeOneEvent > Enter event number : " ;
- cin >> evt ;
- cout << evt << endl ;
+ //if found primary, fill histograms
+ if(closestPrimary >=0 ){
+ const TParticle * primary = gime->Primary(closestPrimary) ;
+ if(primary->GetPdgCode() == 22){
+ hAllEnergy->Fill(primary->Energy(), recParticle->Energy()) ;
+ if(recParticle->GetType() == AliPHOSFastRecParticle::kNEUTRALEMFAST){
+ hPhotEnergy->Fill(primary->Energy(), recParticle->Energy() ) ;
+ hEMEnergy->Fill(primary->Energy(), recParticle->Energy() ) ;
+ }
+ else
+ if(recParticle->GetType() == AliPHOSFastRecParticle::kNEUTRALEMSLOW)
+ hEMEnergy->Fill(primary->Energy(), recParticle->Energy() ) ;
+ }
+ }
}
- fEvt = evt ;
- gAlice->GetEvent(evt);
-
- //=========== Get the Digit TTree
-
- gAlice->TreeD()->GetEvent(0) ;
-
- } // ok
-
- return ok ;
-}
+ }
+ //write filled histograms
+ efile->cd() ;
+ hAllEnergy->Write(0,kOverwrite) ;
+ hPhotEnergy->Write(0,kOverwrite) ;
+ hEMEnergy->Write(0,kOverwrite) ;
+ // efile->Write() ;
+ efile->Close() ;
+ delete efile ;
+}
//____________________________________________________________________________
-void AliPHOSAnalyze::DisplayKineEvent(Int_t evt)
+void AliPHOSAnalyze::PositionResolution(const char * branchTitle)
{
- // Display particles from the Kine Tree in global Alice (theta, phi) coordinates.
- // One PHOS module at the time.
- // The particle type can be selected.
-
- if (evt == -999)
- evt = fEvt ;
-
- Int_t module ;
- cout << "DisplayKineEvent > which module (1-5, -1: all) ? " ;
- cin >> module ; cout << module << endl ;
-
- Int_t testparticle ;
- cout << " 22 : PHOTON " << endl
- << " (-)11 : (POSITRON)ELECTRON " << endl
- << " (-)2112 : (ANTI)NEUTRON " << endl
- << " -999 : Everything else " << endl ;
- cout << "DisplayKineEvent > enter PDG particle code to display " ;
- cin >> testparticle ; cout << testparticle << endl ;
+ //fills two dimentional histo: energy vs. primary - reconstructed distance
- Text_t histoname[80] ;
- sprintf(histoname,"Event %d: Incident particles in module %d", evt, module) ;
- Double_t tm, tM, pm, pM ; // min and Max theta and phi covered by module
- fGeom->EmcModuleCoverage(module, tm, tM, pm, pM, AliPHOSGeometry::Degre() ) ;
- Double_t theta, phi ;
- fGeom->EmcXtalCoverage(theta, phi, AliPHOSGeometry::Degre() ) ;
+ TH2F * hAllPosition = 0; // Position of any RP with primary photon
+ TH2F * hPhotPosition = 0; // Position of kGAMMA with primary photon
+ TH2F * hEMPosition = 0; // Position of EM with primary photon
- Int_t tdim = (Int_t)( (tM - tm) / theta ) ;
- Int_t pdim = (Int_t)( (pM - pm) / phi ) ;
+ TH1F * hAllPositionX = 0; // X-Position Resolution of photons with photon primary
+ TH1F * hAllPositionZ = 0; // Z-Position Resolution of photons with photon primary
- tm -= theta ;
- tM += theta ;
- pm -= phi ;
- pM += phi ;
- TH2F * histoparticle = new TH2F("histoparticle", histoname,
- pdim, pm, pM, tdim, tm, tM) ;
- histoparticle->SetStats(kFALSE) ;
+ //opening file and reading histograms if any
+ TFile * pfile = new TFile("position.root","update");
- // Get pointers to Alice Particle TClonesArray
+ hAllPosition = (TH2F*)pfile->Get("hAllPosition");
+ if(hAllPosition == 0)
+ hAllPosition = new TH2F("hAllPosition",
+ "Position of any RP with primary photon",100, 0., 5., 100, 0., 5.);
+ hPhotPosition= (TH2F*)pfile->Get("hPhotPosition");
+ if(hPhotPosition == 0)
+ hPhotPosition = new TH2F("hPhotPosition",
+ "Position of kGAMMA with primary photon",100, 0., 5., 100, 0., 5.);
+ hEMPosition= (TH2F*)pfile->Get("hEMPosition") ;
+ if(hEMPosition == 0)
+ hEMPosition = new TH2F("hEMPosition",
+ "Position of EM with primary photon", 100, 0., 5., 100, 0., 5.);
+ hAllPositionX = (TH1F*)pfile->Get("hAllPositionX") ;
+ if(hAllPositionX == 0)
+ hAllPositionX = new TH1F("hAllPositionX",
+ "Delta X of any RP with primary photon",100, -2., 2.);
+ hAllPositionZ =(TH1F*) pfile->Get("hAllPositionZ") ;
+ if(hAllPositionZ == 0)
+ hAllPositionZ = new TH1F("hAllPositionZ",
+ "Delta X of any RP with primary photon",100, -2., 2.);
- TParticle * particle;
- TClonesArray * particlearray = gAlice->Particles();
- Text_t canvasname[80];
- sprintf(canvasname,"Particles incident in PHOS/EMC module # %d",module) ;
- TCanvas * kinecanvas = new TCanvas("kinecanvas", canvasname, 650, 500) ;
+ AliPHOSGetter * gime = AliPHOSGetter::GetInstance(ffileName.Data(),branchTitle) ;
+ const AliPHOSGeometry * phosgeom = gime->PHOSGeometry() ;
- // get the KINE Tree
-
- TTree * kine = gAlice->TreeK() ;
- Stat_t nParticles = kine->GetEntries() ;
- cout << "DisplayKineEvent > events in kine " << nParticles << endl ;
-
- // loop over particles
-
- Double_t kRADDEG = 180. / TMath::Pi() ;
- Int_t index1 ;
- Int_t nparticlein = 0 ;
- for (index1 = 0 ; index1 < nParticles ; index1++){
- Int_t nparticle = particlearray->GetEntriesFast() ;
- Int_t index2 ;
- for( index2 = 0 ; index2 < nparticle ; index2++) {
- particle = (TParticle*)particlearray->UncheckedAt(index2) ;
- Int_t particletype = particle->GetPdgCode() ;
- if (testparticle == -999 || testparticle == particletype) {
- Double_t phi = particle->Phi() ;
- Double_t theta = particle->Theta() ;
- Int_t mod ;
- Double_t x, z ;
- fGeom->ImpactOnEmc(theta, phi, mod, z, x) ;
- if ( mod == module ) {
- nparticlein++ ;
- if (particle->Energy() > fClu->GetEmcClusteringThreshold() )
- histoparticle->Fill(phi*kRADDEG, theta*kRADDEG, particle->Energy() ) ;
- }
- }
+ Int_t ievent;
+ Int_t maxevent = (Int_t)gAlice->TreeE()->GetEntries() ;
+ for ( ievent=0; ievent < maxevent ; ievent++){
+
+ //read the current event
+ gime->Event(ievent) ;
+ TClonesArray * rp = gime->RecParticles() ;
+ if(!rp) {
+ cout << "AliPHOSAnalyze::PositionResolution --> Event " <<ievent
+ << ", Can't find RecParticles " << endl ;
+ return ;
}
- }
- kinecanvas->Draw() ;
- histoparticle->Draw("color") ;
- TPaveText * pavetext = new TPaveText(294, 100, 300, 101);
- Text_t text[40] ;
- sprintf(text, "Particles: %d ", nparticlein) ;
- pavetext->AddText(text) ;
- pavetext->Draw() ;
- kinecanvas->Update();
+ TClonesArray * ts = gime->TrackSegments() ;
+ if(!ts) {
+ cout << "AliPHOSAnalyze::PositionResolution --> Event " <<ievent
+ << ", Can't find TrackSegments " << endl ;
+ return ;
+ }
+ TObjArray * emcrp = gime->EmcRecPoints() ;
+ if(!emcrp){
+ cout << "AliPHOSAnalyze::PositionResolution --> Event " <<ievent
+ << ", Can't find EmcRecPoints " << endl ;
+ return ;
+ }
+
+
+ const AliPHOSRecParticle * recParticle ;
+ Int_t iRecParticle ;
+ for(iRecParticle = 0; iRecParticle < rp->GetEntriesFast(); iRecParticle++ ){
+ recParticle = (AliPHOSRecParticle *) rp->At(iRecParticle) ;
+
+ //find the closest primary
+ Int_t moduleNumberRec ;
+ Double_t recX, recZ ;
+ phosgeom->ImpactOnEmc(recParticle->Theta(), recParticle->Phi(), moduleNumberRec, recX, recZ) ;
+
+ Double_t minDistance = 100. ;
+ Int_t closestPrimary = -1 ;
+
+ //extract list of primaries: it is stored at EMC RecPoints
+ Int_t emcIndex = ((AliPHOSTrackSegment*) ts->At(recParticle->GetPHOSTSIndex()))->GetEmcIndex() ;
+ Int_t numberofprimaries ;
+ Int_t * listofprimaries = ((AliPHOSEmcRecPoint *) emcrp->At(emcIndex))->GetPrimaries(numberofprimaries) ;
-}
-//____________________________________________________________________________
-void AliPHOSAnalyze::DisplayRecParticles()
-{
- // Display reconstructed particles in global Alice(theta, phi) coordinates.
- // One PHOS module at the time.
- // Click on symbols indicate the reconstructed particle type.
-
- if (fEvt == -999) {
- cout << "DisplayRecParticles > Analyze an event first ... (y/n) " ;
- Text_t answer[1] ;
- cin >> answer ; cout << answer ;
-// if ( answer == "y" )
-// AnalyzeOneEvent() ;
- }
- if (fEvt != -999) {
+ Int_t index ;
+ const TParticle * primary ;
+ Double_t distance = minDistance ;
+ Double_t dX = 1000; // incredible number
+ Double_t dZ = 1000; // for the case if no primary will be found
+ Double_t dXmin = 0.;
+ Double_t dZmin = 0. ;
+ for ( index = 0 ; index < numberofprimaries ; index++){
+ primary = gime->Primary(listofprimaries[index]) ;
+ Int_t moduleNumber ;
+ Double_t primX, primZ ;
+ phosgeom->ImpactOnEmc(primary->Theta(), primary->Phi(), moduleNumber, primX, primZ) ;
+ if(moduleNumberRec == moduleNumber) {
+ dX = recX - primX;
+ dZ = recZ - primZ;
+ distance = TMath::Sqrt(dX*dX + dZ*dZ) ;
+ if(minDistance > distance) {
+ minDistance = distance ;
+ dXmin = dX;
+ dZmin = dZ;
+ closestPrimary = listofprimaries[index] ;
+ }
+ }
+ }
- Int_t module ;
- cout << "DisplayRecParticles > which module (1-5, -1: all) ? " ;
- cin >> module ; cout << module << endl ;
- Text_t histoname[80] ;
- sprintf(histoname,"Event %d: Reconstructed particles in module %d", fEvt, module) ;
- Double_t tm, tM, pm, pM ; // min and Max theta and phi covered by module
- fGeom->EmcModuleCoverage(module, tm, tM, pm, pM, AliPHOSGeometry::Degre() ) ;
- Double_t theta, phi ;
- fGeom->EmcXtalCoverage(theta, phi, AliPHOSGeometry::Degre() ) ;
- Int_t tdim = (Int_t)( (tM - tm) / theta ) ;
- Int_t pdim = (Int_t)( (pM - pm) / phi ) ;
- tm -= theta ;
- tM += theta ;
- pm -= phi ;
- TH2F * histoRparticle = new TH2F("histoRparticle", histoname,
- pdim, pm, pM, tdim, tm, tM) ;
- histoRparticle->SetStats(kFALSE) ;
- Text_t canvasname[80] ;
- sprintf(canvasname, "Reconstructed particles in PHOSmodule # %d", module) ;
- TCanvas * rparticlecanvas = new TCanvas("RparticleCanvas", canvasname, 650, 500) ;
- AliPHOSRecParticle::RecParticlesList * rpl = *fPHOS->RecParticles() ;
- Int_t nRecParticles = rpl->GetEntries() ;
- Int_t nRecParticlesInModule = 0 ;
- TIter nextRecPart(rpl) ;
- AliPHOSRecParticle * rp ;
- cout << "DisplayRecParticles > " << nRecParticles << " reconstructed particles " << endl ;
- Double_t kRADDEG = 180. / TMath::Pi() ;
- while ( (rp = (AliPHOSRecParticle *)nextRecPart() ) ) {
- AliPHOSTrackSegment * ts = rp->GetPHOSTrackSegment() ;
- if ( ts->GetPHOSMod() == module ) {
- Int_t numberofprimaries = 0 ;
- Int_t * listofprimaries = 0;
- rp->GetPrimaries(numberofprimaries) ;
- cout << "Number of primaries = " << numberofprimaries << endl ;
- Int_t index ;
- for ( index = 0 ; index < numberofprimaries ; index++)
- cout << " primary # " << index << " = " << listofprimaries[index] << endl ;
-
- nRecParticlesInModule++ ;
- Double_t theta = rp->Theta() * kRADDEG ;
- Double_t phi = rp->Phi() * kRADDEG ;
- Double_t energy = rp->Energy() ;
- histoRparticle->Fill(phi, theta, energy) ;
+ //if found primary, fill histograms
+ if(closestPrimary >=0 ){
+ const TParticle * primary = gime->Primary(closestPrimary) ;
+ if(primary->GetPdgCode() == 22){
+ hAllPosition->Fill(primary->Energy(), minDistance) ;
+ hAllPositionX->Fill(primary->Energy(), dX) ;
+ hAllPositionZ->Fill(primary->Energy(), dZ) ;
+ if(recParticle->GetType() == AliPHOSFastRecParticle::kNEUTRALEMFAST){
+ hPhotPosition->Fill(primary->Energy(), minDistance ) ;
+ hEMPosition->Fill(primary->Energy(), minDistance ) ;
+ }
+ else
+ if(recParticle->GetType() == AliPHOSFastRecParticle::kNEUTRALEMSLOW)
+ hEMPosition->Fill(primary->Energy(), minDistance ) ;
}
}
- histoRparticle->Draw("color") ;
+ }
+ }
+
+ //Write output histgrams
+ pfile->cd() ;
+ hAllPosition->Write(0,kOverwrite) ;
+ hAllPositionX->Write(0,kOverwrite) ;
+ hAllPositionZ->Write(0,kOverwrite) ;
+ hPhotPosition->Write(0,kOverwrite) ;
+ hEMPosition->Write(0,kOverwrite) ;
+ pfile->Write() ;
+ pfile->Close() ;
+ delete pfile ;
- nextRecPart.Reset() ;
- while ( (rp = (AliPHOSRecParticle *)nextRecPart() ) ) {
- AliPHOSTrackSegment * ts = rp->GetPHOSTrackSegment() ;
- if ( ts->GetPHOSMod() == module )
- rp->Draw("P") ;
- }
- Text_t text[80] ;
- sprintf(text, "reconstructed particles: %d", nRecParticlesInModule) ;
- TPaveText * pavetext = new TPaveText(292, 100, 300, 101);
- pavetext->AddText(text) ;
- pavetext->Draw() ;
- rparticlecanvas->Update() ;
- }
}
-
//____________________________________________________________________________
-void AliPHOSAnalyze::DisplayRecPoints()
-{
- // Display reconstructed points in local PHOS-module (x, z) coordinates.
- // One PHOS module at the time.
- // Click on symbols displays the EMC cluster, or PPSD information.
-
- if (fEvt == -999) {
- cout << "DisplayRecPoints > Analyze an event first ... (y/n) " ;
- Text_t answer[1] ;
- cin >> answer ; cout << answer ;
-// if ( answer == "y" )
-// AnalyzeOneEvent() ;
- }
- if (fEvt != -999) {
-
- Int_t module ;
- cout << "DisplayRecPoints > which module (1-5, -1: all) ? " ;
- cin >> module ; cout << module << endl ;
-
- Text_t canvasname[80];
- sprintf(canvasname,"Digits in PHOS/EMC module # %d",module) ;
- TCanvas * modulecanvas = new TCanvas("module", canvasname, 650, 500) ;
- modulecanvas->Draw() ;
-
- //=========== Creating 2d-histogram of the PHOS module
- // a little bit junkie but is used to test Geom functinalities
+void AliPHOSAnalyze::Contamination(const char* RecPointsTitle){
+// fills spectra of primary photons and several kinds of
+// reconstructed particles, so that analyzing them one can
+// estimate conatmination, efficiency of registration etc.
+
+ //define several general histograms
+ TH1F * hPrimary = 0; //spectrum (P_t distribution) of primary photons
+ TH1F * hAllRP = 0; //spectrum of all RecParticles in PHOS
+ TH1F * hPhot = 0; //spectrum of kGAMMA RecParticles
+ TH1F * hShape = 0; //spectrum of all EM RecParticles
+ TH1F * hVeto = 0; //spectrum of all neutral RecParticles
+
+ //Now separate histograms in accoradance with primary
+ //primary - photon
+ TH1F * hPhotReg = 0; //Registeres as photon
+ TH1F * hPhotEM = 0; //Registered as EM
+
+ //primary - n
+ TH1F * hNReg = 0; //Registeres as photon
+ TH1F * hNEM = 0; //Registered as EM
+
+ //primary - nBar
+ TH1F * hNBarReg = 0; //Registeres as photon
+ TH1F * hNBarEM = 0; //Registered as EM
+
+ //primary - charged hadron (pBar excluded)
+ TH1F * hChargedReg = 0; //Registeres as photon
+ TH1F * hChargedEM = 0; //Registered as EM
+
+ //primary - pBar
+ TH1F * hPbarReg = 0; //Registeres as photon
+ TH1F * hPbarEM = 0; //Registered as EM
+
+
+ //Reading histograms from the file
+ TFile * cfile = new TFile("contamination.root","update") ;
+
+ //read general histograms
+ hPrimary = (TH1F*) cfile->Get("hPrimary") ;
+ if(hPrimary == 0)
+ hPrimary= new TH1F("hPrimary", "Primary photon spectrum", 100, 0., 5.);
+ hAllRP = (TH1F*)cfile->Get("hAllRP") ;
+ if(hAllRP == 0)
+ hAllRP = new TH1F("hAllRP","All Reconstructed particles", 100, 0., 5.);
+ hPhot = (TH1F*)cfile->Get("hPhot") ;
+ if(hPhot == 0)
+ hPhot = new TH1F("hPhot","All kGAMMA RecParticles",100, 0., 5.);
+ hShape = (TH1F*) cfile->Get("hShape") ;
+ if(hShape == 0)
+ hShape = new TH1F("hShape","All particles with EM shower",100, 0., 5.);
+ hVeto= (TH1F*)cfile->Get("hVeto") ;
+ if(hVeto == 0)
+ hVeto = new TH1F("hVeto", "All uncharged particles", 100, 0., 5.);
+
+
+ //primary - photon
+ hPhotReg = (TH1F*)cfile->Get("hPhotReg");
+ if(hPhotReg == 0)
+ hPhotReg = new TH1F("hPhotReg","Photon registered as photon",100, 0., 5.);
+ hPhotEM =(TH1F*)cfile->Get("hPhotEM");
+ if(hPhotEM== 0)
+ hPhotEM = new TH1F("hPhotEM", "Photon registered as EM", 100, 0., 5.);
+
+ //primary - n
+ hNReg = (TH1F*)cfile->Get("hNReg");
+ if(hNReg== 0)
+ hNReg = new TH1F("hNReg", "N registered as photon", 100, 0., 5.);
+ hNEM = (TH1F*)cfile->Get("hNEM");
+ if(hNEM== 0)
+ hNEM = new TH1F("hNEM", "N registered as EM", 100, 0., 5.);
+
+ //primary - nBar
+ hNBarReg =(TH1F*)cfile->Get("hNBarReg");
+ if(hNBarReg== 0)
+ hNBarReg = new TH1F("hNBarReg", "NBar registered as photon", 100, 0., 5.);
+ hNBarEM =(TH1F*)cfile->Get("hNBarEM");
+ if(hNBarEM== 0)
+ hNBarEM = new TH1F("hNBarEM", "NBar registered as EM", 100, 0., 5.);
+
+ //primary - charged hadron (pBar excluded)
+ hChargedReg = (TH1F*)cfile->Get("hChargedReg");
+ if(hChargedReg== 0)
+ hChargedReg= new TH1F("hChargedReg", "Charged hadron registered as photon",100, 0., 5.);
+ hChargedEM = (TH1F*)cfile->Get("hChargedEM");
+ if(hChargedEM== 0)
+ hChargedEM= new TH1F("hChargedEM","Charged registered as EM",100, 0., 5.);
+
+ //primary - pBar
+ hPbarReg = (TH1F*)cfile->Get("hPbarReg");
+ if(hPbarReg== 0)
+ hPbarReg= new TH1F("hPbarReg", "pBar registered as photon",100, 0., 5.);
+ hPbarEM = (TH1F*)cfile->Get("hPbarEM");
+ if(hPbarEM== 0)
+ hPbarEM= new TH1F("hPbarEM","Pbar registered as EM",100, 0., 5.);
+
- Double_t tm, tM, pm, pM ; // min and Max theta and phi covered by module
-
- fGeom->EmcModuleCoverage(module, tm, tM, pm, pM);
- // convert angles into coordinates local to the EMC module of interest
-
- Int_t emcModuleNumber ;
- Double_t emcModulexm, emcModulezm ; // minimum local coordinate in a given EMCA module
- Double_t emcModulexM, emcModulezM ; // maximum local coordinate in a given EMCA module
- fGeom->ImpactOnEmc(tm, pm, emcModuleNumber, emcModulezm, emcModulexm) ;
- fGeom->ImpactOnEmc(tM, pM, emcModuleNumber, emcModulezM, emcModulexM) ;
- Int_t xdim = (Int_t)( ( emcModulexM - emcModulexm ) / fGeom->GetCrystalSize(0) ) ;
- Int_t zdim = (Int_t)( ( emcModulezM - emcModulezm ) / fGeom->GetCrystalSize(2) ) ;
- Float_t xmin = emcModulexm - fGeom->GetCrystalSize(0) ;
- Float_t xMax = emcModulexM + fGeom->GetCrystalSize(0) ;
- Float_t zmin = emcModulezm - fGeom->GetCrystalSize(2) ;
- Float_t zMax = emcModulezM + fGeom->GetCrystalSize(2) ;
- Text_t histoname[80];
- sprintf(histoname,"Event %d: Digits and RecPoints in module %d", fEvt, module) ;
- TH2F * hModule = new TH2F("HistoReconstructed", histoname,
- xdim, xmin, xMax, zdim, zmin, zMax) ;
- hModule->SetMaximum(2.0);
- hModule->SetMinimum(0.0);
- hModule->SetStats(kFALSE);
-
- TIter next(fPHOS->Digits()) ;
- Float_t energy, y, z;
- Float_t etot=0.;
- Int_t relid[4]; Int_t nDigits = 0 ;
- AliPHOSDigit * digit ;
-
- // Making 2D histogram of the EMC module
- while((digit = (AliPHOSDigit *)next()))
- {
- fGeom->AbsToRelNumbering(digit->GetId(), relid) ;
- if (relid[0] == module && relid[1] == 0)
- {
- energy = fClu->Calibrate(digit->GetAmp()) ;
- cout << "Energy is " << energy << " and threshold is " << fClu->GetEmcEnergyThreshold() << endl;
- if (energy > fClu->GetEmcEnergyThreshold() ){
- nDigits++ ;
- etot += energy ;
- fGeom->RelPosInModule(relid,y,z) ;
- hModule->Fill(y, z, energy) ;
- }
- }
- }
- cout <<"DrawRecPoints > Found in module "
- << module << " " << nDigits << " digits with total energy " << etot << endl ;
- hModule->Draw("col2") ;
+ //Now make some initializations
- //=========== Cluster in module
+ Int_t counter[8][5] ; //# of registered particles
+ Int_t i1,i2 ;
+ for(i1 = 0; i1<8; i1++)
+ for(i2 = 0; i2<5; i2++)
+ counter[i1][i2] = 0 ;
- // TClonesArray * emcRP = fPHOS->EmcClusters() ;
- TObjArray * emcRP = *(fPHOS->EmcRecPoints()) ;
-
- etot = 0.;
- Int_t totalnClusters = 0 ;
- Int_t nClusters = 0 ;
- TIter nextemc(emcRP) ;
- AliPHOSEmcRecPoint * emc ;
- while((emc = (AliPHOSEmcRecPoint *)nextemc()))
- {
- // Int_t numberofprimaries ;
- // Int_t * primariesarray = new Int_t[10] ;
- // emc->GetPrimaries(numberofprimaries, primariesarray) ;
- totalnClusters++ ;
- if ( emc->GetPHOSMod() == module )
- {
- nClusters++ ;
- energy = emc->GetTotalEnergy() ;
- etot+= energy ;
- emc->Draw("M") ;
- }
- }
- cout << "DrawRecPoints > Found " << totalnClusters << " EMC Clusters in PHOS" << endl ;
- cout << "DrawRecPoints > Found in module " << module << " " << nClusters << " EMC Clusters " << endl ;
- cout << "DrawRecPoints > total energy " << etot << endl ;
-
- TPaveText * pavetext = new TPaveText(22, 80, 83, 90);
- Text_t text[40] ;
- sprintf(text, "digits: %d; clusters: %d", nDigits, nClusters) ;
- pavetext->AddText(text) ;
- pavetext->Draw() ;
- modulecanvas->Update();
-
- //=========== Cluster in module PPSD Down
- // TClonesArray * ppsdRP = fPHOS->PpsdClusters() ;
- TObjArray * ppsdRP = *(fPHOS->PpsdRecPoints() );
-
- etot = 0.;
- TIter nextPpsd(ppsdRP) ;
- AliPHOSPpsdRecPoint * ppsd ;
- while((ppsd = (AliPHOSPpsdRecPoint *)nextPpsd()))
- {
- totalnClusters++ ;
- if ( ppsd->GetPHOSMod() == module )
- {
- nClusters++ ;
- energy = ppsd->GetEnergy() ;
- etot+=energy ;
- if (!ppsd->GetUp()) ppsd->Draw("P") ;
- }
- }
- cout << "DrawRecPoints > Found " << totalnClusters << " Ppsd Down Clusters in PHOS" << endl ;
- cout << "DrawRecPoints > Found in module " << module << " " << nClusters << " Ppsd Down Clusters " << endl ;
- cout << "DrawRecPoints > total energy " << etot << endl ;
- //=========== Cluster in module PPSD Up
+ AliPHOSGetter * gime = AliPHOSGetter::GetInstance(ffileName.Data(),RecPointsTitle) ;
+ const AliPHOSGeometry * phosgeom = gime->PHOSGeometry() ;
- ppsdRP = *(fPHOS->PpsdRecPoints()) ;
-
- etot = 0.;
- TIter nextPpsdUp(ppsdRP) ;
- while((ppsd = (AliPHOSPpsdRecPoint *)nextPpsdUp()))
- {
- totalnClusters++ ;
- if ( ppsd->GetPHOSMod() == module )
- {
- nClusters++ ;
- energy = ppsd->GetEnergy() ;
- etot+=energy ;
- if (ppsd->GetUp()) ppsd->Draw("P") ;
- }
- }
- cout << "DrawRecPoints > Found " << totalnClusters << " Ppsd Up Clusters in PHOS" << endl ;
- cout << "DrawRecPoints > Found in module " << module << " " << nClusters << " Ppsd Up Clusters " << endl ;
- cout << "DrawRecPoints > total energy " << etot << endl ;
+ Int_t ievent;
+ Int_t maxevent = (Int_t)gAlice->TreeE()->GetEntries() ;
+ for ( ievent=0; ievent < maxevent ; ievent++){
- } // if !-999
-}
-
-//____________________________________________________________________________
-void AliPHOSAnalyze::DisplayTrackSegments()
-{
- // Display track segments in local PHOS-module (x, z) coordinates.
- // One PHOS module at the time.
- // One symbol per PHOS subsystem: EMC, upper PPSD, lower PPSD.
-
- if (fEvt == -999) {
- cout << "DisplayTrackSegments > Analyze an event first ... (y/n) " ;
- Text_t answer[1] ;
- cin >> answer ; cout << answer ;
-// if ( answer == "y" )
-// AnalyzeOneEvent() ;
- }
- if (fEvt != -999) {
-
- Int_t module ;
- cout << "DisplayTrackSegments > which module (1-5, -1: all) ? " ;
- cin >> module ; cout << module << endl ;
- //=========== Creating 2d-histogram of the PHOS module
- // a little bit junkie but is used to test Geom functinalities
+ gime->Event(ievent) ;
+
+ TClonesArray * rp = gime->RecParticles() ;
+ if(!rp) {
+ cout << "AliPHOSAnalyze::Contamination --> Event " <<ievent
+ << ", Can't find RecParticles " << endl ;
+ return ;
+ }
+ TClonesArray * ts = gime->TrackSegments() ;
+ if(!ts) {
+ cout << "AliPHOSAnalyze::Contamination --> Event " <<ievent
+ << ", Can't find TrackSegments " << endl ;
+ return ;
+ }
+ TObjArray * emcrp = gime->EmcRecPoints() ;
+ if(!emcrp){
+ cout << "AliPHOSAnalyze::Contamination --> Event " <<ievent
+ << ", Can't find EmcRecPoints " << endl ;
+ return ;
+ }
+
+
+ //=========== Make spectrum of the primary photons
+ const TParticle * primary ;
+ Int_t iPrimary ;
+ for( iPrimary = 0 ; iPrimary < gime->NPrimaries() ; iPrimary++){
+ primary = gime->Primary(iPrimary) ;
+ Int_t primaryType = primary->GetPdgCode() ;
+ if( primaryType == 22 ) {
+ //check, if photons folls onto PHOS
+ Int_t moduleNumber ;
+ Double_t primX, primZ ;
+ phosgeom->ImpactOnEmc(primary->Theta(), primary->Phi(), moduleNumber, primX, primZ) ;
+ if(moduleNumber)
+ hPrimary->Fill(primary->Energy()) ;
+
+ }
- Double_t tm, tM, pm, pM ; // min and Max theta and phi covered by module
+ }
+
+ //========== Now scan over RecParticles
+ const AliPHOSRecParticle * recParticle ;
+ Int_t iRecParticle ;
+ for(iRecParticle = 0; iRecParticle < rp->GetEntriesFast(); iRecParticle++ ){
+ recParticle = (AliPHOSRecParticle *) rp->At(iRecParticle) ;
+ //fill histo spectrum of all RecParticles
+ hAllRP->Fill(CorrectedEnergy(recParticle->Energy())) ;
- fGeom->EmcModuleCoverage(module, tm, tM, pm, pM);
- // convert angles into coordinates local to the EMC module of interest
+ //==========find the closest primary
+ Int_t moduleNumberRec ;
+ Double_t recX, recZ ;
+ phosgeom->ImpactOnEmc(recParticle->Theta(), recParticle->Phi(), moduleNumberRec, recX, recZ) ;
- Int_t emcModuleNumber ;
- Double_t emcModulexm, emcModulezm ; // minimum local coordinate in a given EMCA module
- Double_t emcModulexM, emcModulezM ; // maximum local coordinate in a given EMCA module
- fGeom->ImpactOnEmc(tm, pm, emcModuleNumber, emcModulezm, emcModulexm) ;
- fGeom->ImpactOnEmc(tM, pM, emcModuleNumber, emcModulezM, emcModulexM) ;
- Int_t xdim = (Int_t)( ( emcModulexM - emcModulexm ) / fGeom->GetCrystalSize(0) ) ;
- Int_t zdim = (Int_t)( ( emcModulezM - emcModulezm ) / fGeom->GetCrystalSize(2) ) ;
- Float_t xmin = emcModulexm - fGeom->GetCrystalSize(0) ;
- Float_t xMax = emcModulexM + fGeom->GetCrystalSize(0) ;
- Float_t zmin = emcModulezm - fGeom->GetCrystalSize(2) ;
- Float_t zMax = emcModulezM + fGeom->GetCrystalSize(2) ;
- Text_t histoname[80];
- sprintf(histoname,"Event %d: Track Segments in module %d", fEvt, module) ;
- TH2F * histotrack = new TH2F("histotrack", histoname,
- xdim, xmin, xMax, zdim, zmin, zMax) ;
- histotrack->SetStats(kFALSE);
- Text_t canvasname[80];
- sprintf(canvasname,"Track segments in PHOS/EMC-PPSD module # %d", module) ;
- TCanvas * trackcanvas = new TCanvas("TrackSegmentCanvas", canvasname, 650, 500) ;
- histotrack->Draw() ;
-
- AliPHOSTrackSegment::TrackSegmentsList * trsegl = *(fPHOS->TrackSegments()) ;
- AliPHOSTrackSegment * trseg ;
-
- Int_t nTrackSegments = trsegl->GetEntries() ;
+ Double_t minDistance = 100. ;
+ Int_t closestPrimary = -1 ;
+
+ //extract list of primaries: it is stored at EMC RecPoints
+ Int_t emcIndex = ((AliPHOSTrackSegment *) ts->At(recParticle->GetPHOSTSIndex()))->GetEmcIndex() ;
+ Int_t numberofprimaries ;
+ Int_t * listofprimaries = ((AliPHOSEmcRecPoint *) emcrp->At(emcIndex))->GetPrimaries(numberofprimaries) ;
Int_t index ;
- Float_t etot = 0 ;
- Int_t nTrackSegmentsInModule = 0 ;
- for(index = 0; index < nTrackSegments ; index++){
- trseg = (AliPHOSTrackSegment * )trsegl->At(index) ;
- etot+= trseg->GetEnergy() ;
- if ( trseg->GetPHOSMod() == module ) {
- nTrackSegmentsInModule++ ;
- trseg->Draw("P");
+ const TParticle * primary ;
+ Double_t distance = minDistance ;
+ Double_t dX, dZ;
+ Double_t dXmin = 0.;
+ Double_t dZmin = 0. ;
+ for ( index = 0 ; index < numberofprimaries ; index++){
+ primary = gime->Primary(listofprimaries[index]) ;
+ Int_t moduleNumber ;
+ Double_t primX, primZ ;
+ phosgeom->ImpactOnEmc(primary->Theta(), primary->Phi(), moduleNumber, primX, primZ) ;
+ if(moduleNumberRec == moduleNumber) {
+ dX = recX - primX;
+ dZ = recZ - primZ;
+ distance = TMath::Sqrt(dX*dX + dZ*dZ) ;
+ if(minDistance > distance) {
+ minDistance = distance ;
+ dXmin = dX;
+ dZmin = dZ;
+ closestPrimary = listofprimaries[index] ;
+ }
}
- }
- Text_t text[80] ;
- sprintf(text, "track segments: %d", nTrackSegmentsInModule) ;
- TPaveText * pavetext = new TPaveText(22, 80, 83, 90);
- pavetext->AddText(text) ;
- pavetext->Draw() ;
- trackcanvas->Update() ;
- cout << "DisplayTrackSegments > Found " << trsegl->GetEntries() << " Track segments with total energy "<< etot << endl ;
-
- }
-}
-//____________________________________________________________________________
-Bool_t AliPHOSAnalyze::OpenRootFile(Text_t * name)
-{
- // Open the root file named "name"
+ }
+
+ //===========define the "type" of closest primary
+ if(closestPrimary >=0 ){
+ Int_t primaryCode = -1;
+ const TParticle * primary = gime->Primary(closestPrimary) ;
+ Int_t primaryType = primary->GetPdgCode() ;
+ if(primaryType == 22) // photon ?
+ primaryCode = 0 ;
+ else
+ if(primaryType == 2112) // neutron
+ primaryCode = 1 ;
+ else
+ if(primaryType == -2112) // Anti neutron
+ primaryCode = 2 ;
+ else
+ if(primaryType == -2122) //Anti proton
+ primaryCode = 4 ;
+ else {
+ TParticle tempo(*primary) ;
+ if(tempo.GetPDG()->Charge())
+ primaryCode = 3 ;
+ }
+
+ //==========Now look at the type of RecParticle
+ Float_t energy = CorrectedEnergy(recParticle->Energy()) ;
+ if(recParticle->GetType() == AliPHOSFastRecParticle::kNEUTRALEMFAST){
+ hPhot->Fill(energy ) ;
+ switch(primaryCode){
+ case 0:
+ hPhotReg->Fill(energy ) ;
+ break ;
+ case 1:
+ hNReg->Fill(energy ) ;
+ break ;
+ case 2:
+ hNBarReg->Fill(energy ) ;
+ break ;
+ case 3:
+ hChargedReg->Fill(energy ) ;
+ break ;
+ case 4:
+ hPbarReg->Fill(energy ) ;
+ break ;
+ default:
+ break ;
+ }
+ }
+ if((recParticle->GetType() == AliPHOSFastRecParticle::kNEUTRALEMFAST)||
+ (recParticle->GetType() == AliPHOSFastRecParticle::kCHARGEDEMFAST)||
+ (recParticle->GetType() == AliPHOSFastRecParticle::kNEUTRALEMSLOW)||
+ (recParticle->GetType() == AliPHOSFastRecParticle::kCHARGEDEMSLOW) ){ //with EM shower
+ hShape->Fill(energy ) ;
+ switch(primaryCode){
+ case 0:
+ hPhotEM->Fill(energy ) ;
+ break ;
+ case 1:
+ hNEM->Fill(energy ) ;
+ break ;
+ case 2:
+ hNBarEM->Fill(energy ) ;
+ break ;
+ case 3:
+ hChargedEM->Fill(energy ) ;
+ break ;
+ case 4:
+ hPbarEM->Fill(energy ) ;
+ break ;
+ default:
+ break ;
+ }
+ }
+
+ if((recParticle->GetType() == AliPHOSFastRecParticle::kNEUTRALEMFAST)||
+ (recParticle->GetType() == AliPHOSFastRecParticle::kNEUTRALHAFAST) ||
+ (recParticle->GetType() == AliPHOSFastRecParticle::kNEUTRALEMSLOW) ||
+ (recParticle->GetType() == AliPHOSFastRecParticle::kNEUTRALHASLOW) ) //nuetral
+ hVeto->Fill(energy ) ;
+
+ //fill number of primaries identified as ...
+ if(primaryCode >= 0) // Primary code defined
+ counter[recParticle->GetType()][primaryCode]++ ;
+
+ }
+
+ } // no closest primary found
+ }
- fRootFile = new TFile(name, "update") ;
- return fRootFile->IsOpen() ;
-}
-//____________________________________________________________________________
-// void AliPHOSAnalyze::SavingHistograms()
-// {
-// // Saves the histograms in a root file named "name.analyzed"
-
-// Text_t outputname[80] ;
-// sprintf(outputname,"%s.analyzed",fRootFile->GetName());
-// TFile output(outputname,"RECREATE");
-// output.cd();
-// if (fhEmcDigit )
-// fhEmcDigit->Write() ;
-// if (fhVetoDigit )
-// fhVetoDigit->Write() ;
-// if (fhConvertorDigit )
-// fhConvertorDigit->Write() ;
-// if (fhEmcCluster )
-// fhEmcCluster->Write() ;
-// if (fhVetoCluster )
-// fhVetoCluster->Write() ;
-// if (fhConvertorCluster )
-// fhConvertorCluster->Write() ;
-// if (fhConvertorEmc )
-// fhConvertorEmc->Write() ;
-// if (fhPhotonEnergy)
-// fhPhotonEnergy->Write() ;
-// if (fhPhotonPositionX)
-// fhPhotonPositionX->Write() ;
-// if (fhPhotonPositionY)
-// fhPhotonPositionX->Write() ;
-// if (fhElectronEnergy)
-// fhElectronEnergy->Write() ;
-// if (fhElectronPositionX)
-// fhElectronPositionX->Write() ;
-// if (fhElectronPositionY)
-// fhElectronPositionX->Write() ;
-// if (fhNeutralHadronEnergy)
-// fhNeutralHadronEnergy->Write() ;
-// if (fhNeutralHadronPositionX)
-// fhNeutralHadronPositionX->Write() ;
-// if (fhNeutralHadronPositionY)
-// fhNeutralHadronPositionX->Write() ;
-// if (fhNeutralEMEnergy)
-// fhNeutralEMEnergy->Write() ;
-// if (fhNeutralEMPositionX)
-// fhNeutralEMPositionX->Write() ;
-// if (fhNeutralEMPositionY)
-// fhNeutralEMPositionX->Write() ;
-// if (fhChargedHadronEnergy)
-// fhChargedHadronEnergy->Write() ;
-// if (fhChargedHadronPositionX)
-// fhChargedHadronPositionX->Write() ;
-// if (fhChargedHadronPositionY)
-// fhChargedHadronPositionX->Write() ;
-// if (fhPhotonHadronEnergy)
-// fhPhotonHadronEnergy->Write() ;
-// if (fhPhotonHadronPositionX)
-// fhPhotonHadronPositionX->Write() ;
-// if (fhPhotonHadronPositionY)
-// fhPhotonHadronPositionX->Write() ;
-
-// output.Write();
-// output.Close();
-// }
-//____________________________________________________________________________
-void AliPHOSAnalyze::SaveHistograms()
-{
- // Saves the histograms in a root file named "name.analyzed"
-
- Text_t outputname[80] ;
- sprintf(outputname,"%s.analyzed",fRootFile->GetName());
- TFile output(outputname,"RECREATE");
- output.cd();
-
- if (fhPhotonEnergy)
- fhPhotonEnergy->Write() ;
- if (fhPhotonAllEnergy)
- fhPhotonAllEnergy->Write() ;
- if (fhPhotonPosition)
- fhPhotonPosition->Write() ;
- if (fhPhotonAllPosition)
- fhPhotonAllPosition->Write() ;
- if (fhElectronEnergy)
- fhElectronEnergy->Write() ;
- if (fhElectronAllEnergy)
- fhElectronAllEnergy->Write() ;
- if (fhElectronPosition)
- fhElectronPosition->Write() ;
- if (fhElectronAllPosition)
- fhElectronAllPosition->Write() ;
- if (fhNeutralHadronEnergy)
- fhNeutralHadronEnergy->Write() ;
- if (fhNeutralHadronPosition)
- fhNeutralHadronPosition->Write() ;
- if (fhNeutralEMEnergy)
- fhNeutralEMEnergy->Write() ;
- if (fhNeutralEMAllEnergy)
- fhNeutralEMAllEnergy->Write() ;
- if (fhNeutralEMPosition)
- fhNeutralEMPosition->Write() ;
- if (fhNeutralEMAllPosition)
- fhNeutralEMAllPosition->Write() ;
- if (fhChargedHadronEnergy)
- fhChargedHadronEnergy->Write() ;
- if (fhChargedHadronPosition)
- fhChargedHadronPosition->Write() ;
- if (fhPhotonHadronEnergy)
- fhPhotonHadronEnergy->Write() ;
- if (fhPhotonHadronPosition)
- fhPhotonHadronPosition->Write() ;
- if (fhPhotonReg)
- fhPhotonReg->Write() ;
- if (fhAllReg)
- fhAllReg->Write() ;
- if(fhNReg)
- fhNReg->Write() ;
- if(fhNBarReg)
- fhNBarReg->Write() ;
- if(fhChargedReg)
- fhChargedReg->Write() ;
- if (fhPhotonEM)
- fhPhotonEM->Write() ;
- if (fhAllEM)
- fhAllEM->Write() ;
- if(fhNEM)
- fhNEM->Write() ;
- if(fhNBarEM)
- fhNBarEM->Write() ;
- if(fhChargedEM)
- fhChargedEM->Write() ;
- if(fhPrimary)
- fhPrimary->Write() ;
- if(fhPhotPhot)
- fhPhotPhot->Write() ;
- if(fhPhotElec)
- fhPhotElec->Write() ;
- if(fhPhotNeuH)
- fhPhotNeuH->Write() ;
- if(fhPhotNuEM)
- fhPhotNuEM->Write() ;
- if(fhPhotNuEM)
- fhPhotNuEM->Write() ;
- if(fhPhotChHa)
- fhPhotChHa->Write() ;
- if(fhPhotGaHa)
- fhPhotGaHa->Write() ;
- if(fhEnergyCorrelations)
- fhEnergyCorrelations->Write() ;
- output.Write();
- output.Close();
-}
-//____________________________________________________________________________
-void AliPHOSAnalyze::ResetHistograms()
-{
- fhEnergyCorrelations = 0 ; //Energy correlations between Eloss in Convertor and PPSD(2)
-
- fhEmcDigit = 0 ; // Histo of digit energies in the Emc
- fhVetoDigit = 0 ; // Histo of digit energies in the Veto
- fhConvertorDigit = 0 ; // Histo of digit energies in the Convertor
- fhEmcCluster = 0 ; // Histo of Cluster energies in Emc
- fhVetoCluster = 0 ; // Histo of Cluster energies in Veto
- fhConvertorCluster = 0 ; // Histo of Cluster energies in Convertor
- fhConvertorEmc = 0 ; // 2d Convertor versus Emc energies
-
- fhPhotonEnergy = 0 ; // Spectrum of detected photons with photon primary
- fhPhotonAllEnergy = 0 ; // Total spectrum of detected photons
- fhElectronEnergy = 0 ; // Spectrum of detected electrons with electron primary
- fhElectronAllEnergy = 0 ; // Total spectrum of detected electrons
- fhNeutralHadronEnergy = 0 ; // Spectrum of detected neutral hadron
- fhNeutralEMEnergy = 0 ; // Spectrum of detected neutral EM with EM primary
- fhNeutralEMAllEnergy = 0 ; // Spectrum of detected neutral EM
- fhChargedHadronEnergy = 0 ; // Spectrum of detected charged
- fhPhotonHadronEnergy = 0 ; // Spectrum of detected Photon-Hadron
- fhPhotonPosition = 0 ; // Position Resolution of photons with photon primary
- fhPhotonAllPosition = 0 ; // Position Resolution of photons
- fhElectronPosition = 0 ; // Position Resolution of electrons with electron primary
- fhElectronAllPosition = 0 ; // Position Resolution of electrons
- fhNeutralHadronPosition = 0 ; // Position Resolution of neutral hadron
- fhNeutralEMPosition = 0 ; // Position Resolution of neutral EM with EM primary
- fhNeutralEMAllPosition = 0 ; // Position Resolution of neutral EM
- fhChargedHadronPosition = 0 ; // Position Resolution of charged
- fhPhotonHadronPosition = 0 ; // Position Resolution of Photon-Hadron
- fhPhotonPositionY = 0 ; // Y distribution of detected photons
- fhElectronPositionY = 0 ; // Y distribution of detected electrons
- fhNeutralHadronPositionY = 0 ; // Y distribution of detected neutral hadron
- fhNeutralEMPositionY = 0 ; // Y distribution of detected neutral EM
- fhChargedHadronPositionY = 0 ; // Y distribution of detected charged
- fhPhotonHadronPositionY = 0 ; // Y distribution of detected Photon-Hadron
- fhPhotonReg = 0 ;
- fhAllReg = 0 ;
- fhNReg = 0 ;
- fhNBarReg = 0 ;
- fhChargedReg = 0 ;
- fhPhotonEM = 0 ;
- fhAllEM = 0 ;
- fhNEM = 0 ;
- fhNBarEM = 0 ;
- fhChargedEM = 0 ;
- fhPrimary = 0 ;
-
- fhPhotPhot = 0 ;
- fhPhotElec = 0 ;
- fhPhotNeuH = 0 ;
- fhPhotNuEM = 0 ;
- fhPhotChHa = 0 ;
- fhPhotGaHa = 0 ;
-
+ //=================== SaveHistograms
+ cfile->cd() ;
+ hPrimary->Write(0,kOverwrite);
+ hAllRP->Write(0,kOverwrite);
+ hPhot->Write(0,kOverwrite);
+ hShape->Write(0,kOverwrite);
+ hVeto->Write(0,kOverwrite);
+ hPhotReg->Write(0,kOverwrite);
+ hPhotEM->Write(0,kOverwrite);
+ hNReg ->Write(0,kOverwrite);
+ hNEM ->Write(0,kOverwrite);
+ hNBarReg ->Write(0,kOverwrite);
+ hNBarEM ->Write(0,kOverwrite);
+ hChargedReg ->Write(0,kOverwrite);
+ hChargedEM ->Write(0,kOverwrite);
+ hPbarReg ->Write(0,kOverwrite);
+ hPbarEM ->Write(0,kOverwrite);
+
+ cfile->Write(0,kOverwrite);
+ cfile->Close();
+ delete cfile ;
+
+
+ //print Final Table
+ maxevent = (Int_t)gAlice->TreeE()->GetEntries() ;
+ // cout << "Resolutions: Analyzed " << gime->MaxEvent() << " event(s)" << endl ;
+ cout << "Resolutions: Analyzed " << maxevent << " event(s)" << endl ;
+ cout << endl ;
+
+ cout << " Primary: Photon Neutron Antineutron Charged hadron AntiProton" << endl ;
+ cout << "--------------------------------------------------------------------------------" << endl ;
+ cout << " kGAMMA: "
+ << setw(8) << counter[2][0] << setw(9) << counter[2][1] << setw(13) << counter[2][2]
+ << setw(15)<< counter[2][3] << setw(13) << counter[2][4] << endl ;
+ cout << " kGAMMAHA: "
+ << setw(8) << counter[3][0] << setw(9) << counter[3][1] << setw(13) << counter[3][2]
+ << setw(15)<< counter[3][3] << setw(13) << counter[3][4] << endl ;
+ cout << " kNEUTRALEM: "
+ << setw(8) << counter[0][0] << setw(9) << counter[0][1] << setw(13) << counter[0][2]
+ << setw(15)<< counter[0][3] << setw(13) << counter[0][4] << endl ;
+ cout << " kNEUTRALHA: "
+ << setw(8) << counter[1][0] << setw(9) << counter[1][1] << setw(13) << counter[1][2]
+ << setw(15)<< counter[1][3] << setw(13) << counter[1][4] << endl ;
+ cout << " kABSURDEM: "
+ << setw(8) << counter[4][0] << setw(9) << counter[4][1] << setw(13) << counter[4][2]
+ << setw(15)<< counter[4][3] << setw(13) << counter[4][4] << endl ;
+ cout << " kABSURDHA: "
+ << setw(8) << counter[5][0] << setw(9) << counter[5][1] << setw(13) << counter[5][2]
+ << setw(15)<< counter[5][3] << setw(13) << counter[5][4] << endl ;
+ cout << " kELECTRON: "
+ << setw(8) << counter[6][0] << setw(9) << counter[6][1] << setw(13) << counter[6][2]
+ << setw(15)<< counter[6][3] << setw(13) << counter[6][4] << endl ;
+ cout << " kCHARGEDHA: "
+ << setw(8) << counter[7][0] << setw(9) << counter[7][1] << setw(13) << counter[7][2]
+ << setw(15)<< counter[7][3] << setw(13) << counter[7][4] << endl ;
+ cout << "--------------------------------------------------------------------------------" << endl ;
+
+ Int_t totalInd = 0 ;
+ for(i1 = 0; i1<8; i1++)
+ for(i2 = 0; i2<5; i2++)
+ totalInd+=counter[i1][i2] ;
+ cout << "Indentified particles: " << totalInd << endl ;
+
}
+