* provided "as is" without express or implied warranty. *
**************************************************************************/
+/* $Id$ */
+
//_________________________________________________________________________
-// Algorythm class to analyze PHOS events
-//*-- Y. Schutz : SUBATECH
+// 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.
+//// 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"
// --- Standard library ---
-#include <iostream>
-#include <cstdio>
-
// --- AliRoot header files ---
-#include "AliRun.h"
+#include "AliLog.h"
+#include "AliStack.h"
+#include "AliPHOSGeometry.h"
#include "AliPHOSAnalyze.h"
-#include "AliPHOSClusterizerv1.h"
-#include "AliPHOSTrackSegmentMakerv1.h"
-#include "AliPHOSPIDv1.h"
-#include "AliPHOSReconstructioner.h"
#include "AliPHOSDigit.h"
+#include "AliPHOSSDigitizer.h"
+#include "AliPHOSEmcRecPoint.h"
+#include "AliPHOSCpvRecPoint.h"
#include "AliPHOSTrackSegment.h"
#include "AliPHOSRecParticle.h"
+#include "AliPHOSLoader.h"
+
ClassImp(AliPHOSAnalyze)
+//____________________________________________________________________________
+AliPHOSAnalyze::AliPHOSAnalyze():
+ fCorrection(1.2), //Value calculated for default parameters of reconstruction
+ fEvt(0),
+ ffileName(),
+ fRunLoader(0)
+{
+ // default ctor (useless)
+}
//____________________________________________________________________________
- AliPHOSAnalyze::AliPHOSAnalyze()
+AliPHOSAnalyze::AliPHOSAnalyze(Text_t * fileName):
+ fCorrection(1.05), //Value calculated for default parameters of reconstruction
+ fEvt(0),
+ ffileName(fileName),
+ fRunLoader(0)
{
- // ctor
-
- fRootFile = 0 ;
+ // ctor: analyze events from root file "name"
+ fRunLoader = AliRunLoader::Open(fileName,"AliPHOSAnalyze");
+ if (fRunLoader == 0x0)
+ {
+ AliError(Form("Error Loading session"));
+ }
}
//____________________________________________________________________________
-AliPHOSAnalyze::AliPHOSAnalyze(Text_t * name)
+AliPHOSAnalyze::AliPHOSAnalyze(const AliPHOSAnalyze & ana):
+ TObject(ana),
+ fCorrection(0.),
+ fEvt(0),
+ ffileName(),
+ fRunLoader(0)
{
- // ctor
-
- Bool_t ok = OpenRootFile(name) ;
- if ( !ok ) {
- cout << " AliPHOSAnalyze > Error opening " << name << endl ;
- }
- else {
- gAlice = (AliRun*) fRootFile->Get("gAlice");
- fPHOS = (AliPHOSv0 *)gAlice->GetDetector("PHOS") ;
- fGeom = AliPHOSGeometry::GetInstance( fPHOS->GetGeometry()->GetName(), fPHOS->GetGeometry()->GetTitle() ) ;
- fEvt = -999 ;
- }
+ // copy ctor
+ ( (AliPHOSAnalyze &)ana ).Copy(*this) ;
}
//____________________________________________________________________________
{
// dtor
- fRootFile->Close() ;
- delete fRootFile ;
- fRootFile = 0 ;
+}
+//____________________________________________________________________________
+void AliPHOSAnalyze::DrawRecon(Int_t Nevent,Int_t Nmod){
+ //Draws pimary particles and reconstructed
+ //digits, RecPoints, RecPartices etc
+ //for event Nevent in the module Nmod.
- delete fPHOS ;
- fPHOS = 0 ;
+ //========== Create ObjectLoader
+ if (fRunLoader == 0x0)
+ {
+ AliError(Form("Error Loading session"));
+ return;
+ }
+
+ AliPHOSLoader* gime = dynamic_cast<AliPHOSLoader*>(fRunLoader->GetLoader("PHOSLoader"));
+ if ( gime == 0 )
+ {
+ AliError(Form("Could not obtain the Loader object !"));
+ return ;
+ }
+
+
+ if(Nevent >= fRunLoader->GetNumberOfEvents() ) {
+ AliError(Form("There is no event %d only %d events available", Nevent, fRunLoader->GetNumberOfEvents() )) ;
+ return ;
+ }
+ AliPHOSGeometry * phosgeom = AliPHOSGeometry::GetInstance() ;
+ fRunLoader->GetEvent(Nevent);
- delete fClu ;
- fClu = 0 ;
+ 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) ;
- delete fPID ;
- fPID = 0 ;
+ 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);
+
+ //Get Vertex
+ Double_t vtx[3]={0.,0.,0.} ;
+//DP: extract vertex either from Generator or from data
- delete fRec ;
- fRec = 0 ;
+
+ //Plot Primary Particles
+
+ if (fRunLoader->Stack() == 0x0) fRunLoader->LoadKinematics("READ");
+
- delete fTrs ;
- fTrs = 0 ;
+ const TParticle * primary ;
+ Int_t iPrimary ;
+ for ( iPrimary = 0 ; iPrimary < fRunLoader->Stack()->GetNprimary() ; iPrimary++)
+ {
+ primary = fRunLoader->Stack()->Particle(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(vtx,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 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 xd,zd ;
+ phosgeom->RelPosInModule(relid,xd,zd);
+ Float_t e = sdigit->GetEnergy() ;
+ nsdig[relid[0]-1]++ ;
+ if(relid[0]==Nmod){
+ if(relid[1]==0) //EMC
+ emcSdigits->Fill(xd,zd,e) ;
+ if( relid[1]!=0 )
+ cpvSdigits->Fill(xd,zd,e) ;
+ }
+ }
+ }
+ TString message ;
+ message = "Number of EMC + CPV SDigits per module: \n" ;
+ message += "%d %d %d %d %d\n";
+ AliInfo(Form(message.Data(), nsdig[0], nsdig[1], nsdig[2], nsdig[3], nsdig[4] )) ;
-//____________________________________________________________________________
-void AliPHOSAnalyze::AnalyzeOneEvent(Int_t evt)
-{
- Bool_t ok = Init(evt) ;
+ //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 xd,zd ;
+ phosgeom->RelPosInModule(relid,xd,zd) ;
+ Float_t e = digit->GetEnergy() ;
+ if(relid[0]==Nmod){
+ if(relid[1]==0) //EMC
+ emcDigits->Fill(xd,zd,e) ;
+ if( relid[1]!=0 )
+ cpvDigits->Fill(xd,zd,e) ;
+ }
+ }
+ }
- if ( ok ) {
- //=========== Get the number of entries in the Digits array
-
- Int_t nId = fPHOS->Digits()->GetEntries();
- printf("AnalyzeOneEvent > Number of entries in the Digit array is %d \n",nId);
-
- //=========== Do the reconstruction
-
- cout << "AnalyzeOneEvent > Found " << nId << " digits in PHOS" << endl ;
-
- fPHOS->Reconstruction(fRec);
-
- // =========== End of reconstruction
+
+ //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());
+ }
+ }
+ }
+
+ 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());
+ }
+ }
+ }
- cout << "AnalyzeOneEvent > event # " << fEvt << " processed" << endl ;
- } // ok
- else
- cout << "AnalyzeOneEvent > filed to process event # " << evt << endl ;
+ //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(vtx,recParticle->Theta(), recParticle->Phi(), moduleNumberRec, recX, recZ) ;
+ if(moduleNumberRec == Nmod){
+
+ Double_t minDistance = 5. ;
+ 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 = ((AliPHOSRecPoint*) emcrp->At(emcIndex))->GetPrimaries(numberofprimaries) ;
+ Int_t index ;
+ const TParticle * primPart ;
+ Double_t distance = minDistance ;
+
+ for ( index = 0 ; index < numberofprimaries ; index++){
+ primPart = fRunLoader->Stack()->Particle(listofprimaries[index]) ;
+ Int_t moduleNumber ;
+ Double_t primX, primZ ;
+ phosgeom->ImpactOnEmc(vtx,primPart->Theta(), primPart->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] ;
+ }
+ }
+
+ if(closestPrimary >=0 ){
+
+ Int_t primaryType = fRunLoader->Stack()->Particle(closestPrimary)->GetPdgCode() ;
+
+ if(primaryType==22)
+ recPhot->Fill(recZ,recX,recParticle->Energy()) ;
+// else
+// if(primaryType==-2112)
+// recNbar->Fill(recZ,recX,recParticle->Energy()) ;
+ }
+ }
+ }
+ }
+
+ //Plot made histograms
+ emcSdigits->Draw("box") ;
+ emcDigits->SetLineColor(5) ;
+ emcDigits->Draw("boxsame") ;
+ emcRecPoints->SetLineColor(2) ;
+ emcRecPoints->Draw("boxsame") ;
+ cpvSdigits->SetLineColor(1) ;
+ cpvSdigits->Draw("boxsame") ;
+
+}
//____________________________________________________________________________
- void AliPHOSAnalyze::AnalyzeManyEvents(Int_t Nevents, Int_t module) // analyzes many events
-{
+void AliPHOSAnalyze::Ls(){
+ //lists branches and titles of PHOS-related branches of TreeR, TreeD, TreeS
+
+ if (fRunLoader == 0x0)
+ {
+ AliError(Form("Error Loading session"));
+ return;
+ }
+
+ AliPHOSLoader* gime = dynamic_cast<AliPHOSLoader*>(fRunLoader->GetLoader("PHOSLoader"));
+ if ( gime == 0 )
+ {
+ AliError(Form("Could not obtain the Loader object !"));
+ return ;
+ }
- if ( fRootFile == 0 )
- cout << "AnalyzeManyEvents > " << "Root File not openned" << endl ;
- else
- {
- //========== Get AliRun object from file
- gAlice = (AliRun*) fRootFile->Get("gAlice") ;
- //=========== Get the PHOS object and associated geometry from the file
- fPHOS = (AliPHOSv0 *)gAlice->GetDetector("PHOS") ;
- fGeom = AliPHOSGeometry::GetInstance( fPHOS->GetGeometry()->GetName(), fPHOS->GetGeometry()->GetTitle() );
- //========== Booking Histograms
- cout << "AnalyzeManyEvents > " << "Booking Histograms" << endl ;
- BookingHistograms();
- Int_t ievent;
- Int_t relid[4] ;
- AliPHOSDigit * digit ;
- AliPHOSEmcRecPoint * emc ;
- AliPHOSPpsdRecPoint * ppsd ;
- AliPHOSTrackSegment * tracksegment ;
- for ( ievent=0; ievent<Nevents; ievent++)
- {
- if (ievent==0) cout << "AnalyzeManyEvents > " << "Starting Analyzing " << endl ;
- //========== Create the Clusterizer
- fClu = new AliPHOSClusterizerv1() ;
- fClu->SetEmcEnergyThreshold(0.025) ;
- fClu->SetEmcClusteringThreshold(0.75) ;
- 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() ;
- //========== Creates the particle identifier
- fPID = new AliPHOSPIDv1() ;
- fPID->SetShowerProfileCuts(0.5, 1.5, 0.5, 1.5 ) ;
- fPID->Print() ;
- //========== Creates the Reconstructioner
- fRec = new AliPHOSReconstructioner(fClu, fTrs, fPID) ;
- //========== Event Number
- if ( ( log10(ievent+1) - (Int_t)(log10(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()));
- }
- }
- //=========== Do the reconstruction
- fPHOS->Reconstruction(fRec);
- //=========== Cluster in module
- TIter nextEmc(fPHOS->EmcClusters() ) ;
- while((emc = (AliPHOSEmcRecPoint *)nextEmc()))
- {
- if ( emc->GetPHOSMod() == module )
- {
- fhEmcCluster->Fill( emc->GetTotalEnergy() );
- TIter nextPpsd( fPHOS->PpsdClusters()) ;
- 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->PpsdClusters() ) ;
- 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 nextTrackSegment(fPHOS->TrackSegments() ) ;
- while((tracksegment = (AliPHOSTrackSegment *)nextTrackSegment()))
- {
- if ( tracksegment->GetPHOSMod() == module )
- {
- AliPHOSRecParticle recpart(tracksegment) ;
- switch(recpart.GetType())
- {
- case kGAMMA:
- fhPhotonEnergy->Fill(recpart.Energy() ) ;
- //fhPhotonPositionX->Fill(recpart. ) ;
- //fhPhotonPositionY->Fill(recpart. ) ;
- //cout << "PHOTON" << endl;
- break;
- case kELECTRON:
- fhElectronEnergy->Fill(recpart.Energy() ) ;
- //fhElectronPositionX->Fill(recpart. ) ;
- //fhElectronPositionY->Fill(recpart. ) ;
- //cout << "ELECTRON" << endl;
- break;
- case kNEUTRON:
- fhNeutronEnergy->Fill(recpart.Energy() ) ;
- //fhNeutronPositionX->Fill(recpart. ) ;
- //fhNeutronPositionY->Fill(recpart. ) ;
- //cout << "NEUTRON" << endl;
- break ;
- case kCHARGEDHADRON :
- fhChargedHadronEnergy->Fill(recpart.Energy() ) ;
- //fhChargedHadronPositionX->Fill(recpart. ) ;
- //fhChargedHadronPositionY->Fill(recpart. ) ;
- //cout << "CHARGED HADRON" << endl;
- break ;
-
- }
- }
- }
- // Deleting fClu, fTrs, fPID et fRec
- fClu->Delete();
- fTrs->Delete();
- fPID->Delete();
- fRec->Delete();
-
- } // endfor
- SavingHistograms();
- } // endif
-} // endfunction
+ Int_t ibranch;
+ TObjArray * branches;
+
+ if (gime->TreeS() == 0x0)
+ {
+ if (gime->LoadSDigits("READ"))
+ {
+ AliError(Form("Problems with loading summable digits"));
+ return;
+ }
+ }
+ branches = gime->TreeS()->GetListOfBranches() ;
+
+ TString message ;
+ message = "TreeS:\n" ;
+ for(ibranch = 0;ibranch <branches->GetEntries();ibranch++){
+ TBranch * branch=(TBranch *) branches->At(ibranch) ;
+ if(strstr(branch->GetName(),"PHOS") ){
+ message += " " ;
+ message += branch->GetName() ;
+ message += " " ;
+ message += branch->GetTitle() ;
+ message += "\n" ;
+ }
+ }
+ if (gime->TreeD() == 0x0)
+ {
+ if (gime->LoadDigits("READ"))
+ {
+ AliError(Form("Problems with loading digits"));
+ return;
+ }
+ }
-//____________________________________________________________________________
-void AliPHOSAnalyze::BookingHistograms()
-{
- if (fhEmcDigit ) delete fhEmcDigit ;
- if (fhVetoDigit ) delete fhVetoDigit ;
- if (fhConvertorDigit ) delete fhConvertorDigit ;
- if (fhEmcCluster ) delete fhEmcCluster ;
- if (fhVetoCluster ) delete fhVetoCluster ;
- if (fhConvertorCluster ) delete fhConvertorCluster ;
- if (fhConvertorEmc ) 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);
- fhPhotonEnergy = new TH1F("hPhotonEnergy", "hPhotonEnergy", 1000, 0. , 30.);
- fhElectronEnergy = new TH1F("hElectronEnergy","hElectronEnergy", 1000, 0. , 30.);
- fhNeutronEnergy = new TH1F("hNeutronEnergy", "hNeutronEnergy", 1000, 0. , 30.);
- fhChargedHadronEnergy = new TH1F("hChargedHadronEnergy", "hChargedHadronEnergy", 1000, 0. , 30.);
- fhPhotonPositionX = new TH1F("hPhotonPositionX","hPhotonPositionX", 500,-80. , 80.);
- fhElectronPositionX= new TH1F("hElectronPositionX","hElectronPositionX",500,-80. , 80.);
- fhNeutronPositionX = new TH1F("hNeutronPositionX","hNeutronPositionX",500,-80. , 80.);
- fhChargedHadronPositionX = new TH1F("hChargedHadronPositionX","hChargedHadronPositionX",500,-80. , 80.);
- fhPhotonPositionY = new TH1F("hPhotonPositionY","hPhotonPositionY", 500,-80. , 80.);
- fhElectronPositionY= new TH1F("hElectronPositionY","hElectronPositionY",500,-80. , 80.);
- fhNeutronPositionY = new TH1F("hNeutronPositionY","hNeutronPositionY",500,-80. , 80.);
- fhChargedHadronPositionY = new TH1F("hChargedHadronPositionY","hChargedHadronPositionY",500,-80. , 80.);
+ branches = gime->TreeD()->GetListOfBranches() ;
+
+ message += "TreeD:\n" ;
+ for(ibranch = 0;ibranch <branches->GetEntries();ibranch++){
+ TBranch * branch=(TBranch *) branches->At(ibranch) ;
+ if(strstr(branch->GetName(),"PHOS") ) {
+ message += " ";
+ message += branch->GetName() ;
+ message += " " ;
+ message += branch->GetTitle() ;
+ message +="\n" ;
+ }
+ }
+
+ if (gime->TreeR() == 0x0)
+ {
+ if (gime->LoadRecPoints("READ"))
+ {
+ AliError(Form("Problems with loading rec points"));
+ return;
+ }
+ }
+ branches = gime->TreeR()->GetListOfBranches() ;
+
+ message += "TreeR: \n" ;
+ for(ibranch = 0;ibranch <branches->GetEntries();ibranch++){
+ TBranch * branch=(TBranch *) branches->At(ibranch) ;
+ if(strstr(branch->GetName(),"PHOS") ) {
+ message += " " ;
+ message += branch->GetName() ;
+ message += " " ;
+ message += branch->GetTitle() ;
+ message += "\n" ;
+ }
+ }
+ AliInfo(Form(message.Data())) ;
}
//____________________________________________________________________________
-Bool_t AliPHOSAnalyze::Init(Int_t evt)
+ void AliPHOSAnalyze::InvariantMass()
{
+ // Calculates Real and Mixed invariant mass distributions
+ if (fRunLoader == 0x0)
+ {
+ AliError(Form("Error Loading session"));
+ return;
+ }
+
+ AliPHOSLoader* gime = dynamic_cast<AliPHOSLoader*>(fRunLoader->GetLoader("PHOSLoader"));
+ if ( gime == 0 )
+ {
+ AliError(Form("Could not obtain the Loader object !"));
+ return ;
+ }
+
+ gime->LoadRecParticles("READ");
+
+ Int_t nMixedEvents = 4 ; //# of events used for calculation of 'mixed' distribution
+
+
+ //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 ;
- Bool_t ok = kTRUE ;
+ 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.) ;
- //========== 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
-
- gAlice = (AliRun*) fRootFile->Get("gAlice") ;
-
- //=========== Get the PHOS object and associated geometry from the file
-
- fPHOS = (AliPHOSv0 *)gAlice->GetDetector("PHOS") ;
- fGeom = AliPHOSGeometry::GetInstance( fPHOS->GetGeometry()->GetName(), fPHOS->GetGeometry()->GetTitle() );
- } // else !ok
- } // if fRootFile
+ //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
- if ( ok ) {
-
- //========== Create the Clusterizer
-
- fClu = new AliPHOSClusterizerv1() ;
- fClu->SetEmcEnergyThreshold(0.025) ;
- fClu->SetEmcClusteringThreshold(0.75) ;
- 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 ;
-
- //========== Creates the particle identifier
-
- fPID = new AliPHOSPIDv1() ;
- cout << "AnalyzeOneEvent > using particle identifier " << fPID->GetName() << endl ;
-
- //========== Creates the Reconstructioner
-
- fRec = new AliPHOSReconstructioner(fClu, fTrs, fPID) ;
-
- //=========== Connect the various Tree's for evt
+ //scan over all events
+ Int_t event ;
+
+
+ if (fRunLoader->TreeE() == 0x0) fRunLoader->LoadHeader();
+
+
+ Int_t maxevent = (Int_t)fRunLoader->TreeE()->GetEntries();
+ // for(event = 0; event < gime->MaxEvent(); event++ ){
+
+
+
+ for(event = 0; event < maxevent; event++ ){
+ fRunLoader->GetEvent(event); //will read only TreeR
- if ( evt == -999 ) {
- cout << "AnalyzeOneEvent > Enter event number : " ;
- cin >> evt ;
- cout << evt << endl ;
+ //copy EM RecParticles to the "total" list
+ const AliPHOSRecParticle * recParticle ;
+ Int_t iRecParticle ;
+ TClonesArray * rp = gime->RecParticles() ;
+ if(!rp){
+ AliError(Form("Can't find RecParticles")) ;
+ return ;
}
- fEvt = evt ;
- gAlice->GetEvent(evt);
-
- //=========== Get the Digit TTree
+
+ 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) ;
+ }
- gAlice->TreeD()->GetEvent(0) ;
+ Int_t mevent = event%nMixedEvents ; //event number in the "mixed" cicle
+ nRecParticles[mevent] = iRecPhot-1 ;
- } // ok
+ //check, if it is time to calculate invariant mass?
+ if((mevent == 0) && (event +1 == maxevent)){
+
+ // if((mevent == 0) && (event +1 == gime->MaxEvent())){
+
+ //calculate invariant mass:
+ Int_t irp1,irp2 ;
+ Int_t nCurEvent = 0 ;
+
+ 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) ;
+
+ 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()) ;
+
+ if(invMass> 0)
+ invMass = TMath::Sqrt(invMass);
+
+ 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
+
+ //Make some cleanings
+ for(Int_t index = 0; index < nMixedEvents; index ++)
+ nRecParticles[index] = 0 ;
+ iRecPhot = 0 ;
+ allRecParticleList->Clear() ;
+
+ }
+ }
+ delete allRecParticleList ;
- return ok ;
-}
+ //writing output
+ mfile->cd();
+
+ hRealEM->Write(0,kOverwrite) ;
+ hRealPhot->Write(0,kOverwrite) ;
+ hMixedEM->Write(0,kOverwrite) ;
+ hMixedPhot->Write(0,kOverwrite) ;
+
+ mfile->Write();
+ mfile->Close();
+ delete mfile ;
+ delete nRecParticles;
+}
//____________________________________________________________________________
-void AliPHOSAnalyze::DisplayKineEvent(Int_t evt)
+ void AliPHOSAnalyze::EnergyResolution()
{
- 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 ;
-
- 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, kDegre) ;
-
- Double_t theta, phi ;
- fGeom->EmcXtalCoverage(theta, phi, kDegre) ;
-
- Int_t tdim = (Int_t)( (tM - tm) / theta ) ;
- Int_t pdim = (Int_t)( (pM - pm) / phi ) ;
-
- tm -= theta ;
- tM += theta ;
- pm -= phi ;
- pM += phi ;
-
- TH2F * histoparticle = new TH2F("histoparticle", histoname,
- pdim, pm, pM, tdim, tm, tM) ;
- histoparticle->SetStats(kFALSE) ;
-
- // Get pointers to Alice Particle TClonesArray
-
- 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) ;
-
- // 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++ ;
- histoparticle->Fill(phi*kRADDEG, theta*kRADDEG, particle->Energy() ) ;
- }
- }
+ //fills two dimentional histo: energy of primary vs. energy of reconstructed
+
+ 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.);
+
+
+ if (fRunLoader == 0x0)
+ {
+ AliError(Form("Error Loading session"));
+ return;
+ }
+
+ AliPHOSLoader* gime = dynamic_cast<AliPHOSLoader*>(fRunLoader->GetLoader("PHOSLoader"));
+ if ( gime == 0 )
+ {
+ AliError(Form("Could not obtain the Loader object !"));
+ return ;
+ }
+
+
+ AliPHOSGeometry * phosgeom = AliPHOSGeometry::GetInstance() ;
+
+ Int_t ievent;
+ Int_t maxevent = (Int_t)fRunLoader->TreeE()->GetEntries();
+
+ fRunLoader->LoadKinematics("READ");
+ gime->LoadTracks("READ");
+
+ for ( ievent=0; ievent < maxevent ; ievent++){
+
+ //read the current event
+ fRunLoader->GetEvent(ievent) ;
+
+ Double_t vtx[3]={0.,0.,0.} ;
+
+ const AliPHOSRecParticle * recParticle ;
+ Int_t iRecParticle ;
+ TClonesArray * rp = gime->RecParticles() ;
+ if(!rp) {
+ AliError(Form("Event %d, Can't find RecParticles ", ievent)) ;
+ return ;
+ }
+ TClonesArray * ts = gime->TrackSegments() ;
+ if(!ts) {
+ AliError(Form("Event %d, Can't find TrackSegments", ievent)) ;
+ return ;
+ }
+ TObjArray * emcrp = gime->EmcRecPoints() ;
+ if(!emcrp){
+ AliError(Form("Event %d, Can't find EmcRecPoints")) ;
+ return ;
+ }
+
+ 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(vtx,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) ;
+
+ 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 = fRunLoader->Stack()->Particle(listofprimaries[index]) ;
+
+ Int_t moduleNumber ;
+ Double_t primX, primZ ;
+ phosgeom->ImpactOnEmc(vtx,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] ;
+ }
+ }
+ }
+
+ //if found primary, fill histograms
+ if(closestPrimary >=0 ){
+ primary = fRunLoader->Stack()->Particle(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() ) ;
+ }
+ }
}
}
- 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();
+
+ //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::DisplayRecParticles()
+void AliPHOSAnalyze::PositionResolution()
{
- 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) {
+ //fills two dimentional histo: energy vs. primary - reconstructed distance
+
+
+
+ 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
+
+ TH1F * hAllPositionX = 0; // X-Position Resolution of photons with photon primary
+ TH1F * hAllPositionZ = 0; // Z-Position Resolution of photons with photon primary
+
+
+ //opening file and reading histograms if any
+ TFile * pfile = new TFile("position.root","update");
+
+ 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.);
+
+ if (fRunLoader == 0x0)
+ {
+ AliError(Form("Error Loading session"));
+ return;
+ }
+
+ AliPHOSLoader* gime = dynamic_cast<AliPHOSLoader*>(fRunLoader->GetLoader("PHOSLoader"));
+ if ( gime == 0 )
+ {
+ AliError(Form("Could not obtain the Loader object !"));
+ return ;
+ }
+
+ if (fRunLoader->TreeE() == 0x0) fRunLoader->LoadHeader();
+
+ AliPHOSGeometry * phosgeom = AliPHOSGeometry::GetInstance() ;
+
+ Int_t ievent;
+ Int_t maxevent = (Int_t)fRunLoader->TreeE()->GetEntries() ;
+ for ( ievent=0; ievent < maxevent ; ievent++){
+
+ //read the current event
+ fRunLoader->GetEvent(ievent) ;
+
+ //DP:Extract vertex position
+ Double_t vtx[3]={0.,0.,0.} ;
+
+ TClonesArray * rp = gime->RecParticles() ;
+ if(!rp) {
+ AliError(Form("Event %d, Can't find RecParticles", ievent)) ;
+ return ;
+ }
+ TClonesArray * ts = gime->TrackSegments() ;
+ if(!ts) {
+ AliError(Form("Event %d, Can't find TrackSegments", ievent)) ;
+ return ;
+ }
+ TObjArray * emcrp = gime->EmcRecPoints() ;
+ if(!emcrp){
+ AliError(Form("Event %d, Can't find EmcRecPoints", ievent)) ;
+ 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(vtx,recParticle->Theta(), recParticle->Phi(), moduleNumberRec, recX, recZ) ;
- Int_t module ;
- cout << "DisplayRecPoints > 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, kDegre) ;
- Double_t theta, phi ;
- fGeom->EmcXtalCoverage(theta, phi, kDegre) ;
- 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) ;
- 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 ) {
- nRecParticlesInModule++ ;
- Double_t theta = rp->Theta() * kRADDEG ;
- Double_t phi = rp->Phi() * kRADDEG ;
- Double_t energy = rp->Energy() ;
- histoRparticle->Fill(phi, theta, energy) ;
- }
+ 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 = 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 = fRunLoader->Stack()->Particle(listofprimaries[index]) ;
+ Int_t moduleNumber ;
+ Double_t primX, primZ ;
+ phosgeom->ImpactOnEmc(vtx,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] ;
+ }
+ }
+ }
+
+ //if found primary, fill histograms
+ if(closestPrimary >=0 ){
+ primary = fRunLoader->Stack()->Particle(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") ;
- 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() ;
}
-}
+ }
+
+ //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 ;
+
+}
//____________________________________________________________________________
-void AliPHOSAnalyze::DisplayRecPoints()
-{
- 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 ;
+void AliPHOSAnalyze::Contamination(){
+// fills spectra of primary photons and several kinds of
+// reconstructed particles, so that analyzing them one can
+// estimate conatmination, efficiency of registration etc.
- Text_t canvasname[80];
- sprintf(canvasname,"Digits in PHOS/EMC module # %d",module) ;
- TCanvas * modulecanvas = new TCanvas("module", canvasname, 650, 500) ;
- modulecanvas->Draw() ;
+ //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
- //=========== Creating 2d-histogram of the PHOS module
- // a little bit junkie but is used to test Geom functinalities
+ //Now separate histograms in accoradance with primary
+ //primary - photon
+ TH1F * hPhotReg = 0; //Registeres as photon
+ TH1F * hPhotEM = 0; //Registered as EM
- 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 ;
- while((digit = (AliPHOSDigit *)next()))
- {
- fGeom->AbsToRelNumbering(digit->GetId(), relid) ;
- if (relid[0] == module)
- {
- nDigits++ ;
- energy = fClu->Calibrate(digit->GetAmp()) ;
- etot += energy ;
- fGeom->RelPosInModule(relid,y,z) ;
- if (energy > 0.01 )
- hModule->Fill(y, z, energy) ;
- }
- }
- cout <<"DrawRecPoints > Found in module "
- << module << " " << nDigits << " digits with total energy " << etot << endl ;
- hModule->Draw("col2") ;
-
- //=========== Cluster in module
-
- TClonesArray * emcRP = fPHOS->EmcClusters() ;
- 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();
+ //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.);
- //=========== Cluster in module PPSD Down
-
- TClonesArray * ppsdRP = fPHOS->PpsdClusters() ;
- 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
-
- ppsdRP = fPHOS->PpsdClusters() ;
- 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 ;
+ //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.);
+
+
+ //Now make some initializations
+
+ 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 ;
+
+
+
+ if (fRunLoader == 0x0)
+ {
+ AliError(Form("Error Loading session"));
+ return;
+ }
+
+ AliPHOSLoader* gime = dynamic_cast<AliPHOSLoader*>(fRunLoader->GetLoader("PHOSLoader"));
+ if ( gime == 0 )
+ {
+ AliError(Form("Could not obtain the Loader object !"));
+ return ;
+ }
+
+ if (fRunLoader->TreeE() == 0x0) fRunLoader->LoadHeader();
+ AliPHOSGeometry * phosgeom = AliPHOSGeometry::GetInstance() ;
+
+ Int_t ievent;
+ Int_t maxevent = (Int_t)fRunLoader->TreeE()->GetEntries() ;
+ for ( ievent=0; ievent < maxevent ; ievent++){
- } // if !-999
-}
+ fRunLoader->GetEvent(ievent) ;
+
+ //DP:Extract vertex position
+ Double_t vtx[3]={0.,0.,0.} ;
-//____________________________________________________________________________
-void AliPHOSAnalyze::DisplayTrackSegments()
-{
- 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
+ TClonesArray * rp = gime->RecParticles() ;
+ if(!rp) {
+ AliError(Form("Event %d, Can't find RecParticles", ievent)) ;
+ return ;
+ }
+ TClonesArray * ts = gime->TrackSegments() ;
+ if(!ts) {
+ AliError(Form("Event %d, Can't find TrackSegments", ievent)) ;
+ return ;
+ }
+ TObjArray * emcrp = gime->EmcRecPoints() ;
+ if(!emcrp){
+ AliError(Form("Event %d, Can't find EmcRecPoints", ievent)) ;
+ return ;
+ }
+
+
+ //=========== Make spectrum of the primary photons
+ const TParticle * primary ;
+ Int_t iPrimary ;
+ for( iPrimary = 0 ; iPrimary < fRunLoader->Stack()->GetNprimary() ; iPrimary++){
+ primary = fRunLoader->Stack()->Particle(iPrimary) ;
+ Int_t primaryType = primary->GetPdgCode() ;
+ if( primaryType == 22 ) {
+ //check, if photons folls onto PHOS
+ Int_t moduleNumber ;
+ Double_t primX, primZ ;
+ phosgeom->ImpactOnEmc(vtx,primary->Theta(), primary->Phi(), moduleNumber, primX, primZ) ;
+ if(moduleNumber)
+ hPrimary->Fill(primary->Energy()) ;
+
+ }
+
+ }
+
+ //========== 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())) ;
- Double_t tm, tM, pm, pM ; // min and Max theta and phi covered by module
+ //==========find the closest primary
+ Int_t moduleNumberRec ;
+ Double_t recX, recZ ;
+ phosgeom->ImpactOnEmc(vtx,recParticle->Theta(), recParticle->Phi(), moduleNumberRec, recX, recZ) ;
- fGeom->EmcModuleCoverage(module, tm, tM, pm, pM);
- // convert angles into coordinates local to the EMC module of interest
+ Double_t minDistance = 100. ;
+ Int_t closestPrimary = -1 ;
- 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() ;
-
- TrackSegmentsList * trsegl = fPHOS->TrackSegments() ;
- AliPHOSTrackSegment * trseg ;
-
- Int_t nTrackSegments = trsegl->GetEntries() ;
+ //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");
- }
- }
- 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)
-{
- fRootFile = new TFile(name) ;
- return fRootFile->IsOpen() ;
-}
-//____________________________________________________________________________
-void AliPHOSAnalyze::SavingHistograms()
-{
- Text_t outputname[80] ;// = fRootFile->GetName();
- 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 (fhNeutronEnergy) fhNeutronEnergy->Write() ;
- if (fhNeutronPositionX) fhNeutronPositionX->Write() ;
- if (fhNeutronPositionY) fhNeutronPositionX->Write() ;
- if (fhChargedHadronEnergy) fhChargedHadronEnergy->Write() ;
- if (fhChargedHadronPositionX) fhChargedHadronPositionX->Write() ;
- if (fhChargedHadronPositionY) fhChargedHadronPositionX->Write() ;
-
- output.Write();
- output.Close();
+ Double_t distance = minDistance ;
+ Double_t dX, dZ;
+ Double_t dXmin = 0.;
+ Double_t dZmin = 0. ;
+ for ( index = 0 ; index < numberofprimaries ; index++){
+ primary = fRunLoader->Stack()->Particle(listofprimaries[index]) ;
+ Int_t moduleNumber ;
+ Double_t primX, primZ ;
+ phosgeom->ImpactOnEmc(vtx,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] ;
+ }
+ }
+ }
+
+ //===========define the "type" of closest primary
+ if(closestPrimary >=0 ){
+ Int_t primaryCode = -1;
+ primary = fRunLoader->Stack()->Particle(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
+ }
+
+
+ //=================== 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() ;
+
+ TString message ;
+ message = "Resolutions: Analyzed %d event(s)\n" ;
+
+ message += " Primary: Photon Neutron Antineutron Charged hadron AntiProton\n" ;
+ message += "--------------------------------------------------------------------------------\n" ;
+ message += " kGAMMA: " ;
+ message += "%d %d %d %d %d\n" ;
+ message += " kGAMMAHA: " ;
+ message += "%d %d %d %d %d\n" ;
+ message += " kNEUTRALEM: " ;
+ message += "%d %d %d %d %d\n" ;
+ message += " kNEUTRALHA: " ;
+ message += "%d %d %d %d %d\n" ;
+ message += " kABSURDEM: ";
+ message += "%d %d %d %d %d\n" ;
+ message += " kABSURDHA: " ;
+ message += "%d %d %d %d %d\n" ;
+ message += " kELECTRON: " ;
+ message += "%d %d %d %d %d\n" ;
+ message += " kCHARGEDHA: " ;
+ message += "%d %d %d %d %d\n" ;
+
+ message += "--------------------------------------------------------------------------------" ;
+
+
+ Int_t totalInd = 0 ;
+ for(i1 = 0; i1<8; i1++)
+ for(i2 = 0; i2<5; i2++)
+ totalInd+=counter[i1][i2] ;
+ message += "Indentified particles: %d" ;
+
+ AliInfo(Form(message.Data(), maxevent,
+ counter[2][0], counter[2][1], counter[2][2], counter[2][3], counter[2][4],
+ counter[3][0], counter[3][1], counter[3][2], counter[3][3], counter[3][4],
+ counter[0][0], counter[0][1], counter[0][2], counter[0][3], counter[0][4],
+ counter[1][0], counter[1][1], counter[1][2], counter[1][3], counter[1][4],
+ counter[4][0], counter[4][1], counter[4][2], counter[4][3], counter[4][4],
+ counter[5][0], counter[5][1], counter[5][2], counter[5][3], counter[5][4],
+ counter[6][0], counter[6][1], counter[6][2], counter[6][3], counter[6][4],
+ counter[7][0], counter[7][1], counter[7][2], counter[7][3], counter[7][4],
+ totalInd )) ;
+
}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff