[u/mrichter/AliRoot.git] / PWG4 / CaloCalib / AliAnalysisTaskPHOSPi0CalibSelection.cxx

/**************************************************************************
 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
 *                                                                        *
 * Author: Boris Polishchuk                                               *
 * Adapted to AOD reading by Gustavo Conesa  *
 *                                                                        *
 * Permission to use, copy, modify and distribute this software and its   *
 * documentation strictly for non-commercial purposes is hereby granted   *
 * without fee, provided that the above copyright notice appears in all   *
 * copies and that both the copyright notice and this permission notice   *
 * appear in the supporting documentation. The authors make no claims     *
 * about the suitability of this software for any purpose. It is          *
 * provided "as is" without express or implied warranty.                  *
 **************************************************************************/

//---------------------------------------------------------------------------// 
//                                                                           //
// Fill histograms (one per cell) with two-cluster invariant mass            //
// using calibration coefficients of the previous iteration.                 //
// Histogram for a given cell is filled if the most energy of one cluster    //
// is deposited in this cell and the other cluster could be anywhere in PHOS.//
//                                                                           //
//---------------------------------------------------------------------------//

#include <cstdlib>

// Root 
#include "TLorentzVector.h"
#include "TVector3.h"
#include "TRefArray.h"
#include "TList.h"

// AliRoot
#include "AliAnalysisTaskPHOSPi0CalibSelection.h"
#include "AliAODEvent.h"
#include "AliESDEvent.h"
#include "AliESDCaloCluster.h"
#include "AliESDCaloCells.h"
#include "AliPHOSAodCluster.h"
#include "AliPHOSPIDv1.h"

ClassImp(AliAnalysisTaskPHOSPi0CalibSelection)

//__________________________________________________
AliAnalysisTaskPHOSPi0CalibSelection::AliAnalysisTaskPHOSPi0CalibSelection() :
AliAnalysisTaskSE(),fOutputContainer(0x0),fPhosGeo(0x0),fCalibData(0x0),fHmgg(0x0),
fEmin(0.), fLogWeight(4.5), fCopyAOD(kFALSE)
{
  //Default constructor.

  for(Int_t iMod=0; iMod<5; iMod++) {
    for(Int_t iX=0; iX<64; iX++) {
      for(Int_t iZ=0; iZ<56; iZ++) {
	fHmpi0[iMod][iX][iZ]=0;
      }
    } 
  }
		
}

//__________________________________________________
AliAnalysisTaskPHOSPi0CalibSelection::AliAnalysisTaskPHOSPi0CalibSelection(const char* name) :
  AliAnalysisTaskSE(name),fOutputContainer(0x0),fPhosGeo(0x0),fCalibData(0x0),fHmgg(0x0),
  fEmin(0.), fLogWeight(4.5), fCopyAOD(kFALSE)
{
  //Named constructor which should be used.
  
  DefineOutput(1,TList::Class());
  
  for(Int_t iMod=0; iMod<5; iMod++) {
    for(Int_t iX=0; iX<64; iX++) {
      for(Int_t iZ=0; iZ<56; iZ++) {
	fHmpi0[iMod][iX][iZ]=0;
      }
    } 
  }

}

//__________________________________________________
AliAnalysisTaskPHOSPi0CalibSelection::~AliAnalysisTaskPHOSPi0CalibSelection()
{
  //Destructor.
  
  if(fOutputContainer){
    fOutputContainer->Delete() ; 
    delete fOutputContainer ;
  }
	
  if(fCalibData) delete fCalibData;
  if(fPhosGeo)   delete fPhosGeo;
	
}

//__________________________________________________
void AliAnalysisTaskPHOSPi0CalibSelection::CreateAODFromAOD()
{
  // Copy AOD header, vertex, CaloClusters and CaloCells to output AOD
  
  AliAODEvent* aod = dynamic_cast<AliAODEvent*>(InputEvent());
  
  if(!aod) {
    printf("AliAnalysisTaskPHOSPi0CalibSelection::CreateAODFromAOD() - This event does not contain AODs?");
    return;
  }
  
  // set arrays and pointers
  Float_t posF[3];
  Double_t pos[3];
  
  Double_t covVtx[6];
  
  for (Int_t i = 0; i < 6; i++)  covVtx[i] = 0.;
  
  // Update the header
  AliAODHeader*headerin = aod->GetHeader();
  AliAODHeader* header = AODEvent()->GetHeader();
  header->SetRunNumber(headerin->GetRunNumber());
  header->SetBunchCrossNumber(headerin->GetBunchCrossNumber());
  header->SetOrbitNumber(headerin->GetOrbitNumber());
  header->SetPeriodNumber(headerin->GetPeriodNumber());
  header->SetEventType(headerin->GetEventType());
  header->SetMuonMagFieldScale(headerin->GetMuonMagFieldScale());
  header->SetCentrality(headerin->GetCentrality()); 
  
  header->SetTriggerMask(headerin->GetTriggerMask()); 
  header->SetTriggerCluster(headerin->GetTriggerCluster());
  header->SetMagneticField(headerin->GetMagneticField());
  header->SetZDCN1Energy(headerin->GetZDCN1Energy());
  header->SetZDCP1Energy(headerin->GetZDCP1Energy());
  header->SetZDCN2Energy(headerin->GetZDCN2Energy());
  header->SetZDCP2Energy(headerin->GetZDCP2Energy());
  header->SetZDCEMEnergy(headerin->GetZDCEMEnergy(0),headerin->GetZDCEMEnergy(1));
  Float_t diamxy[2]={aod->GetDiamondX(),aod->GetDiamondY()};
  Float_t diamcov[3]; aod->GetDiamondCovXY(diamcov);
  header->SetDiamond(diamxy,diamcov);
  //
  //
  Int_t nVertices = 1 ;/* = prim. vtx*/;
  Int_t nCaloClus = aod->GetNumberOfCaloClusters();
  
  AODEvent()->ResetStd(0, nVertices, 0, 0, 0, nCaloClus, 0, 0);
  
  // Access to the AOD container of vertices
  TClonesArray &vertices = *(AODEvent()->GetVertices());
  Int_t jVertices=0;
  
  // Add primary vertex. The primary tracks will be defined
  // after the loops on the composite objects (V0, cascades, kinks)
  const AliAODVertex *vtx = aod->GetPrimaryVertex();
  
  vtx->GetXYZ(pos); // position
  vtx->GetCovMatrix(covVtx); //covariance matrix
  
  AliAODVertex * primary = new(vertices[jVertices++])
    AliAODVertex(pos, covVtx, vtx->GetChi2perNDF(), NULL, -1, AliAODVertex::kPrimary);
  primary->SetName(vtx->GetName());
  primary->SetTitle(vtx->GetTitle());
  
  // Access to the AOD container of clusters
  TClonesArray &caloClusters = *(AODEvent()->GetCaloClusters());
  Int_t jClusters=0;
  
  for (Int_t iClust=0; iClust<nCaloClus; ++iClust) {
    
    AliAODCaloCluster * cluster = aod->GetCaloCluster(iClust);
    
    //Check if it is a PHOS cluster
    if(!cluster->IsPHOS())  continue ;
    
    Int_t id       = cluster->GetID();
    Float_t energy = cluster->E();
    cluster->GetPosition(posF);
    Char_t ttype   = cluster->GetType(); 
    
    AliAODCaloCluster *caloCluster = new(caloClusters[jClusters++]) 
      AliAODCaloCluster(id,
			0,
			0x0,
			energy,
			posF,
			NULL,
			ttype);
    
    caloCluster->SetCaloCluster(cluster->GetDistanceToBadChannel(),
				cluster->GetDispersion(),
				cluster->GetM20(), cluster->GetM02(),
				cluster->GetEmcCpvDistance(),  
				cluster->GetNExMax(),cluster->GetTOF()) ;
    
    caloCluster->SetPIDFromESD(cluster->GetPID());
    caloCluster->SetNCells(cluster->GetNCells());
    caloCluster->SetCellsAbsId(cluster->GetCellsAbsId());
    caloCluster->SetCellsAmplitudeFraction(cluster->GetCellsAmplitudeFraction());
    
  } 

  caloClusters.Expand(jClusters); // resize TObjArray to 'remove' slots for pseudo clusters	 
  // end of loop on calo clusters
  
  // fill PHOS cell info
  if (aod->GetPHOSCells()) { // protection against missing AOD information
    AliAODCaloCells &aodinPHcells = *(aod->GetPHOSCells());
    Int_t nPHcell = aodinPHcells.GetNumberOfCells() ;
    
    AliAODCaloCells &aodPHcells = *(AODEvent()->GetPHOSCells());
    aodPHcells.CreateContainer(nPHcell);
    aodPHcells.SetType(AliVCaloCells::kPHOSCell);
    for (Int_t iCell = 0; iCell < nPHcell; iCell++) {      
      aodPHcells.SetCell(iCell,aodinPHcells.GetCellNumber(iCell),aodinPHcells.GetAmplitude(iCell));
    }
    aodPHcells.Sort();
  }
  
  return;
}

//__________________________________________________
void AliAnalysisTaskPHOSPi0CalibSelection::CreateAODFromESD()
{
  
  // Copy Header, Vertex, CaloClusters and CaloCells from ESDs to AODs
  
  AliESDEvent* esd = dynamic_cast<AliESDEvent*>(InputEvent());
  
  if(!esd) {
    printf("AliAnalysisTaskPHOSPi0CalibSelection::CreateAODFromESD() - This event does not contain AODs?");
    return;
  }
  
  // set arrays and pointers
  Float_t posF[3];
  Double_t pos[3];
  
  Double_t covVtx[6];
  
  for (Int_t i = 0; i < 6; i++)  covVtx[i] = 0.;
  
  // Update the header
  
  AliAODHeader* header = AODEvent()->GetHeader();
  header->SetRunNumber(esd->GetRunNumber());
  header->SetBunchCrossNumber(esd->GetBunchCrossNumber());
  header->SetOrbitNumber(esd->GetOrbitNumber());
  header->SetPeriodNumber(esd->GetPeriodNumber());
  header->SetEventType(esd->GetEventType());
  header->SetMuonMagFieldScale(-999.); // FIXME
  header->SetCentrality(-999.);        // FIXME
  
  
  header->SetTriggerMask(esd->GetTriggerMask()); 
  header->SetTriggerCluster(esd->GetTriggerCluster());
  header->SetMagneticField(esd->GetMagneticField());
  header->SetZDCN1Energy(esd->GetZDCN1Energy());
  header->SetZDCP1Energy(esd->GetZDCP1Energy());
  header->SetZDCN2Energy(esd->GetZDCN2Energy());
  header->SetZDCP2Energy(esd->GetZDCP2Energy());
  header->SetZDCEMEnergy(esd->GetZDCEMEnergy(0),esd->GetZDCEMEnergy(1));
  Float_t diamxy[2]={esd->GetDiamondX(),esd->GetDiamondY()};
  Float_t diamcov[3]; esd->GetDiamondCovXY(diamcov);
  header->SetDiamond(diamxy,diamcov);
  //
  //
  Int_t nVertices = 1 ;/* = prim. vtx*/;
  Int_t nCaloClus = esd->GetNumberOfCaloClusters();
  
  AODEvent()->ResetStd(0, nVertices, 0, 0, 0, nCaloClus, 0, 0);
  
  // Access to the AOD container of vertices
  TClonesArray &vertices = *(AODEvent()->GetVertices());
  Int_t jVertices=0;
  
  // Add primary vertex. The primary tracks will be defined
  // after the loops on the composite objects (V0, cascades, kinks)
  const AliESDVertex *vtx = esd->GetPrimaryVertex();
  
  vtx->GetXYZ(pos); // position
  vtx->GetCovMatrix(covVtx); //covariance matrix
  
  AliAODVertex * primary = new(vertices[jVertices++])
    AliAODVertex(pos, covVtx, vtx->GetChi2toNDF(), NULL, -1, AliAODVertex::kPrimary);
  primary->SetName(vtx->GetName());
  primary->SetTitle(vtx->GetTitle());
  
  // Access to the AOD container of clusters
  TClonesArray &caloClusters = *(AODEvent()->GetCaloClusters());
  Int_t jClusters=0;
  
  for (Int_t iClust=0; iClust<nCaloClus; ++iClust) {
    
    AliESDCaloCluster * cluster = esd->GetCaloCluster(iClust);
    
    //Check which calorimeter information we want to keep.
    if(!cluster->IsPHOS())  continue ;
    
    Int_t id       = cluster->GetID();
    Float_t energy = cluster->E();
    cluster->GetPosition(posF);
    
    AliAODCaloCluster *caloCluster = new(caloClusters[jClusters++]) 
      AliAODCaloCluster(id,
			0,
			0x0,
			energy,
			posF,
			NULL,
			AliAODCluster::kPHOSNeutral);
    
    caloCluster->SetCaloCluster(cluster->GetDistanceToBadChannel(),
				cluster->GetDispersion(),
				cluster->GetM20(), cluster->GetM02(),
				cluster->GetEmcCpvDistance(),  
				cluster->GetNExMax(),cluster->GetTOF()) ;
    
    caloCluster->SetPIDFromESD(cluster->GetPID());
    caloCluster->SetNCells(cluster->GetNCells());
    caloCluster->SetCellsAbsId(cluster->GetCellsAbsId());
    caloCluster->SetCellsAmplitudeFraction(cluster->GetCellsAmplitudeFraction());
    
  } 
  caloClusters.Expand(jClusters); // resize TObjArray to 'remove' slots for pseudo clusters	 
  // end of loop on calo clusters
  
  // fill PHOS cell info
  if( esd->GetPHOSCells()) { // protection against missing ESD information
    AliESDCaloCells &esdPHcells = *(esd->GetPHOSCells());
    Int_t nPHcell = esdPHcells.GetNumberOfCells() ;
    
    AliAODCaloCells &aodPHcells = *(AODEvent()->GetPHOSCells());
    aodPHcells.CreateContainer(nPHcell);
    aodPHcells.SetType(AliVCaloCells::kPHOSCell);
    for (Int_t iCell = 0; iCell < nPHcell; iCell++) {      
      aodPHcells.SetCell(iCell,esdPHcells.GetCellNumber(iCell),esdPHcells.GetAmplitude(iCell));
    }
    aodPHcells.Sort();
  }

}

//__________________________________________________
void AliAnalysisTaskPHOSPi0CalibSelection::UserCreateOutputObjects()
{
  //Create output container
  fOutputContainer = new TList();
  const Int_t buffersize = 255;
  char hname[buffersize], htitl[buffersize];
  
  for(Int_t iMod=0; iMod<5; iMod++) {
    for(Int_t iX=0; iX<64; iX++) {
      for(Int_t iZ=0; iZ<56; iZ++) {
        snprintf(hname,buffersize,"%d_%d_%d",iMod,iX,iZ);
        snprintf(htitl,buffersize,"Two-gamma inv. mass for mod %d, cell (%d,%d)",iMod,iX,iZ);
        fHmpi0[iMod][iX][iZ] = new TH1F(hname,htitl,100,0.,300.);
        fOutputContainer->Add(fHmpi0[iMod][iX][iZ]);
      }
    }
  }

  fHmgg = new TH1F("hmgg","2-cluster invariant mass",100,0.,300.);
  fOutputContainer->Add(fHmgg);
	
  fCalibData = new AliPHOSCalibData();
  fPhosGeo =  AliPHOSGeometry::GetInstance("IHEP") ;	

}

//__________________________________________________
void AliAnalysisTaskPHOSPi0CalibSelection::UserExec(Option_t* /* option */)
{
  //Analysis per event.
  if(DebugLevel() > 1) printf("AliAnalysisTaskPHOSPi0CalibSelection <<< Event %d >>>\n",(Int_t)Entry());

  AliAODEvent* aod = 0x0;
  if(!strcmp(InputEvent()->GetName(),"AliAODEvent")) {
    //Input are ESDs
    aod = dynamic_cast<AliAODEvent*>(InputEvent());
    if(!aod) {
      printf("AliAnalysisTaskEMCALPi0CalibSelection::UserExec() - This event does not contain AODs?");
      return;
    }    
    
    // Create new AOD with only CaloClusters and CaloCells
    if(fCopyAOD) CreateAODFromAOD();
  }
  else  if(!strcmp(InputEvent()->GetName(),"AliESDEvent")) {
    //Input are ESDs
    aod = AODEvent();
    if(!aod) {
      printf("AliAnalysisTaskPHOSPi0CalibSelection::UserExec() - This event does not contain AODs?");
      return;
    } 
    
    // Create AOD with CaloClusters and use it as input.
    // If filtering task is already executed, this is not needed.
    if(fCopyAOD) CreateAODFromESD();
  }
  else {
    printf("AliAnalysisTaskPHOSPi0CalibSelection: Unknown event type, STOP!\n");
    abort();
  }	

  Double_t v[] = {aod->GetVertex(0)->GetX(),aod->GetVertex(0)->GetY(),aod->GetVertex(0)->GetZ()}; //to check!!
  //aod->GetVertex()->GetXYZ(v) ;
  TVector3 vtx(v); //Check
	
  if(DebugLevel() > 1) printf("AliAnalysisTaskPHOSPi0CalibSelection Vertex: (%.3f,%.3f,%.3f)\n",vtx.X(),vtx.Y(),vtx.Z());
 
  Int_t runNum = aod->GetRunNumber();
  if(DebugLevel() > 1) printf("Run number: %d\n",runNum);
	
  //Get the matrix with geometry information
  //Still not implemented in AOD, just a workaround to be able to work at least with ESDs	
  if(!strcmp(InputEvent()->GetName(),"AliAODEvent")) {
	  if(DebugLevel() > 1) 
		  printf("AliAnalysisTaskPHOSPi0CalibSelection Use ideal geometry, values geometry matrix not kept in AODs.\n");
  }
  else{	
	  if(DebugLevel() > 1) printf("AliAnalysisTaskPHOSPi0CalibSelection Load Misaligned matrices. \n");
	  AliESDEvent* esd = dynamic_cast<AliESDEvent*>(InputEvent()) ;
    if(!esd) {
       printf("AliAnalysisTaskPHOSPi0CalibSelection::UserExec() - This event does not contain ESDs?");
      return;
    }
	  for(Int_t mod=0; mod<5; mod++){ 
		if(esd->GetPHOSMatrix(mod))
			fPhosGeo->SetMisalMatrix(esd->GetPHOSMatrix(mod),mod) ;
		}
  }
	
  if(DebugLevel() > 1) printf("AliAnalysisTaskPHOSPi0CalibSelection Will use fLogWeight %.3f .\n",fLogWeight);

  Int_t mod1 = -1;
  TLorentzVector p1;
  TLorentzVector p2;
  TLorentzVector p12;
  Int_t relid[4] ;
  Int_t maxId;

  TRefArray * caloClustersArr  = new TRefArray();
  aod->GetPHOSClusters(caloClustersArr);
  
  const Int_t kNumberOfPhosClusters   = caloClustersArr->GetEntries() ;
  if(DebugLevel() > 1) printf("AliAnalysisTaskPHOSPi0CalibSelection CaloClusters: %d\n", kNumberOfPhosClusters);

  // PHOS cells
  AliAODCaloCells *phsCells = aod->GetPHOSCells();
  
  // loop over PHOS clusters
  for(Int_t iClu=0; iClu<kNumberOfPhosClusters; iClu++) {
    
    AliAODCaloCluster *c1 = (AliAODCaloCluster *) caloClustersArr->At(iClu);
    if(!c1->IsPHOS()) continue; // EMCAL cluster!

    Float_t e1i = c1->E();   // cluster energy before correction
    if(e1i<fEmin) continue;

    AliPHOSAodCluster clu1(*c1);
    clu1.Recalibrate(fCalibData, phsCells);
    clu1.EvalAll(fLogWeight,vtx);
    clu1.EnergyCorrection() ;

    clu1.GetMomentum(p1,v);

    MaxEnergyCellPos(phsCells,&clu1,maxId);
    fPhosGeo->AbsToRelNumbering(maxId, relid);

    mod1 = relid[0]-1;        // module
    Int_t iX = relid[2]-1;    // cluster X-coord
    Int_t iZ = relid[3]-1;    // cluster Z-coord
	Float_t e1ii = clu1.E(); // cluster energy after correction
    
    for (Int_t jClu=iClu; jClu<kNumberOfPhosClusters; jClu++) {
      AliAODCaloCluster *c2 = (AliAODCaloCluster *) caloClustersArr->At(jClu);
      if(!c2->IsPHOS())   continue; // EMCAL cluster!
      if(c2->IsEqual(c1)) continue;

      Float_t e2i = c2->E();
      if(e2i<fEmin) continue;
      
      AliPHOSAodCluster clu2(*c2);
      clu2.Recalibrate(fCalibData, phsCells);
      clu2.EvalAll(fLogWeight,vtx);
      clu2.EnergyCorrection() ;
        
      clu2.GetMomentum(p2,v);
	  Float_t e2ii = clu2.E();

      p12 = p1+p2;

      fHmgg->Fill(p12.M()*1000); 
      fHmpi0[mod1][iX][iZ]->Fill(p12.M()*1000);
      
	  if(DebugLevel() > 1) printf("AliAnalysisTaskPHOSPi0CalibSelection Mass in (mod%d,%d,%d): %.3f GeV  E1_i=%f E1_ii=%f  E2_i=%f E2_ii=%f\n",
	     mod1,iX,iZ,p12.M(),e1i,e1ii,e2i,e2ii);
    }
    
  } // end of loop over PHOS clusters
  
  delete caloClustersArr;
  PostData(1,fOutputContainer);
}

//__________________________________________________
void AliAnalysisTaskPHOSPi0CalibSelection::MaxEnergyCellPos(AliAODCaloCells *cells, AliAODCaloCluster* clu, Int_t& maxId)
{
  //For a given CaloCluster calculates the absId of the cell 
  //with maximum energy deposit.
  
  Double_t eMax = -111;
  
  for (Int_t iDig=0; iDig< clu->GetNCells(); iDig++) {
    Int_t cellAbsId = clu->GetCellAbsId(iDig);
    Double_t eCell = cells->GetCellAmplitude(cellAbsId)*clu->GetCellAmplitudeFraction(iDig);
    if(eCell>eMax)  { 
      eMax = eCell; 
      maxId = cellAbsId;
    }
  }

}

//__________________________________________________
void AliAnalysisTaskPHOSPi0CalibSelection::SetCalibCorrections(AliPHOSCalibData* cdata)
{
  //Set new correction factors (~1) to calibration coefficients, delete previous.

   if(fCalibData) delete fCalibData;
   fCalibData = cdata;
	
}
Commit	Line	Data
e727d2f7	1	/**************************************************************************
	2	* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
	3	* *
	4	* Author: Boris Polishchuk *
7a4cf423	5	* Adapted to AOD reading by Gustavo Conesa *
e727d2f7	6	* *
	7	* Permission to use, copy, modify and distribute this software and its *
	8	* documentation strictly for non-commercial purposes is hereby granted *
	9	* without fee, provided that the above copyright notice appears in all *
	10	* copies and that both the copyright notice and this permission notice *
	11	* appear in the supporting documentation. The authors make no claims *
	12	* about the suitability of this software for any purpose. It is *
	13	* provided "as is" without express or implied warranty. *
	14	**************************************************************************/
	15
	16	//---------------------------------------------------------------------------//
	17	// //
	18	// Fill histograms (one per cell) with two-cluster invariant mass //
	19	// using calibration coefficients of the previous iteration. //
	20	// Histogram for a given cell is filled if the most energy of one cluster //
	21	// is deposited in this cell and the other cluster could be anywhere in PHOS.//
	22	// //
	23	//---------------------------------------------------------------------------//
	24
	25	#include <cstdlib>
	26
	27	// Root
	28	#include "TLorentzVector.h"
	29	#include "TVector3.h"
e727d2f7	30	#include "TRefArray.h"
	31	#include "TList.h"
	32
	33	// AliRoot
	34	#include "AliAnalysisTaskPHOSPi0CalibSelection.h"
e727d2f7	35	#include "AliAODEvent.h"
4b4efabc	36	#include "AliESDEvent.h"
7a4cf423	37	#include "AliESDCaloCluster.h"
7a4cf423	38	#include "AliESDCaloCells.h"
e727d2f7	39	#include "AliPHOSAodCluster.h"
e727d2f7	40	#include "AliPHOSPIDv1.h"
e727d2f7	41
e727d2f7	42	ClassImp(AliAnalysisTaskPHOSPi0CalibSelection)
e727d2f7	43
7a4cf423	44	//__________________________________________________
e727d2f7	45	AliAnalysisTaskPHOSPi0CalibSelection::AliAnalysisTaskPHOSPi0CalibSelection() :
4b4efabc	46	AliAnalysisTaskSE(),fOutputContainer(0x0),fPhosGeo(0x0),fCalibData(0x0),fHmgg(0x0),
7a4cf423	47	fEmin(0.), fLogWeight(4.5), fCopyAOD(kFALSE)
e727d2f7	48	{
	49	//Default constructor.
	50
	51	for(Int_t iMod=0; iMod<5; iMod++) {
	52	for(Int_t iX=0; iX<64; iX++) {
	53	for(Int_t iZ=0; iZ<56; iZ++) {
	54	fHmpi0[iMod][iX][iZ]=0;
	55	}
	56	}
	57	}
	58
	59	}
	60
7a4cf423	61	//__________________________________________________
e727d2f7	62	AliAnalysisTaskPHOSPi0CalibSelection::AliAnalysisTaskPHOSPi0CalibSelection(const char* name) :
4b4efabc	63	AliAnalysisTaskSE(name),fOutputContainer(0x0),fPhosGeo(0x0),fCalibData(0x0),fHmgg(0x0),
7a4cf423	64	fEmin(0.), fLogWeight(4.5), fCopyAOD(kFALSE)
e727d2f7	65	{
	66	//Named constructor which should be used.
	67
	68	DefineOutput(1,TList::Class());
	69
	70	for(Int_t iMod=0; iMod<5; iMod++) {
	71	for(Int_t iX=0; iX<64; iX++) {
	72	for(Int_t iZ=0; iZ<56; iZ++) {
	73	fHmpi0[iMod][iX][iZ]=0;
	74	}
	75	}
	76	}
	77
	78	}
	79
7a4cf423	80	//__________________________________________________
e727d2f7	81	AliAnalysisTaskPHOSPi0CalibSelection::~AliAnalysisTaskPHOSPi0CalibSelection()
	82	{
	83	//Destructor.
	84
	85	if(fOutputContainer){
	86	fOutputContainer->Delete() ;
	87	delete fOutputContainer ;
	88	}
4b4efabc	89
	90	if(fCalibData) delete fCalibData;
	91	if(fPhosGeo) delete fPhosGeo;
	92
e727d2f7	93	}
e727d2f7	94
7a4cf423	95	//__________________________________________________
	96	void AliAnalysisTaskPHOSPi0CalibSelection::CreateAODFromAOD()
	97	{
	98	// Copy AOD header, vertex, CaloClusters and CaloCells to output AOD
	99
	100	AliAODEvent* aod = dynamic_cast<AliAODEvent*>(InputEvent());
	101
2dfb1428	102	if(!aod) {
	103	printf("AliAnalysisTaskPHOSPi0CalibSelection::CreateAODFromAOD() - This event does not contain AODs?");
	104	return;
	105	}
	106
7a4cf423	107	// set arrays and pointers
	108	Float_t posF[3];
	109	Double_t pos[3];
	110
	111	Double_t covVtx[6];
	112
	113	for (Int_t i = 0; i < 6; i++) covVtx[i] = 0.;
	114
	115	// Update the header
29a41d05	116	AliAODHeader*headerin = aod->GetHeader();
7a4cf423	117	AliAODHeader* header = AODEvent()->GetHeader();
	118	header->SetRunNumber(headerin->GetRunNumber());
	119	header->SetBunchCrossNumber(headerin->GetBunchCrossNumber());
	120	header->SetOrbitNumber(headerin->GetOrbitNumber());
	121	header->SetPeriodNumber(headerin->GetPeriodNumber());
	122	header->SetEventType(headerin->GetEventType());
29a41d05	123	header->SetMuonMagFieldScale(headerin->GetMuonMagFieldScale());
29a41d05	124	header->SetCentrality(headerin->GetCentrality());
7a4cf423	125
	126	header->SetTriggerMask(headerin->GetTriggerMask());
	127	header->SetTriggerCluster(headerin->GetTriggerCluster());
	128	header->SetMagneticField(headerin->GetMagneticField());
	129	header->SetZDCN1Energy(headerin->GetZDCN1Energy());
	130	header->SetZDCP1Energy(headerin->GetZDCP1Energy());
	131	header->SetZDCN2Energy(headerin->GetZDCN2Energy());
	132	header->SetZDCP2Energy(headerin->GetZDCP2Energy());
	133	header->SetZDCEMEnergy(headerin->GetZDCEMEnergy(0),headerin->GetZDCEMEnergy(1));
	134	Float_t diamxy[2]={aod->GetDiamondX(),aod->GetDiamondY()};
	135	Float_t diamcov[3]; aod->GetDiamondCovXY(diamcov);
	136	header->SetDiamond(diamxy,diamcov);
	137	//
	138	//
	139	Int_t nVertices = 1 ;/* = prim. vtx*/;
c8fe2783	140	Int_t nCaloClus = aod->GetNumberOfCaloClusters();
7a4cf423	141
	142	AODEvent()->ResetStd(0, nVertices, 0, 0, 0, nCaloClus, 0, 0);
	143
	144	// Access to the AOD container of vertices
	145	TClonesArray &vertices = *(AODEvent()->GetVertices());
	146	Int_t jVertices=0;
	147
	148	// Add primary vertex. The primary tracks will be defined
	149	// after the loops on the composite objects (V0, cascades, kinks)
	150	const AliAODVertex *vtx = aod->GetPrimaryVertex();
	151
	152	vtx->GetXYZ(pos); // position
	153	vtx->GetCovMatrix(covVtx); //covariance matrix
	154
	155	AliAODVertex * primary = new(vertices[jVertices++])
	156	AliAODVertex(pos, covVtx, vtx->GetChi2perNDF(), NULL, -1, AliAODVertex::kPrimary);
	157	primary->SetName(vtx->GetName());
	158	primary->SetTitle(vtx->GetTitle());
	159
	160	// Access to the AOD container of clusters
	161	TClonesArray &caloClusters = *(AODEvent()->GetCaloClusters());
	162	Int_t jClusters=0;
	163
	164	for (Int_t iClust=0; iClust<nCaloClus; ++iClust) {
	165
	166	AliAODCaloCluster * cluster = aod->GetCaloCluster(iClust);
	167
	168	//Check if it is a PHOS cluster
c8fe2783	169	if(!cluster->IsPHOS()) continue ;
7a4cf423	170
	171	Int_t id = cluster->GetID();
	172	Float_t energy = cluster->E();
	173	cluster->GetPosition(posF);
	174	Char_t ttype = cluster->GetType();
	175
	176	AliAODCaloCluster *caloCluster = new(caloClusters[jClusters++])
	177	AliAODCaloCluster(id,
	178	0,
	179	0x0,
	180	energy,
	181	posF,
	182	NULL,
	183	ttype);
	184
c8fe2783	185	caloCluster->SetCaloCluster(cluster->GetDistanceToBadChannel(),
7a4cf423	186	cluster->GetDispersion(),
	187	cluster->GetM20(), cluster->GetM02(),
	188	cluster->GetEmcCpvDistance(),
	189	cluster->GetNExMax(),cluster->GetTOF()) ;
	190
c8fe2783	191	caloCluster->SetPIDFromESD(cluster->GetPID());
7a4cf423	192	caloCluster->SetNCells(cluster->GetNCells());
	193	caloCluster->SetCellsAbsId(cluster->GetCellsAbsId());
	194	caloCluster->SetCellsAmplitudeFraction(cluster->GetCellsAmplitudeFraction());
	195
	196	}
	197
	198	caloClusters.Expand(jClusters); // resize TObjArray to 'remove' slots for pseudo clusters
	199	// end of loop on calo clusters
	200
	201	// fill PHOS cell info
	202	if (aod->GetPHOSCells()) { // protection against missing AOD information
	203	AliAODCaloCells &aodinPHcells = *(aod->GetPHOSCells());
	204	Int_t nPHcell = aodinPHcells.GetNumberOfCells() ;
	205
	206	AliAODCaloCells &aodPHcells = *(AODEvent()->GetPHOSCells());
	207	aodPHcells.CreateContainer(nPHcell);
c8fe2783	208	aodPHcells.SetType(AliVCaloCells::kPHOSCell);
7a4cf423	209	for (Int_t iCell = 0; iCell < nPHcell; iCell++) {
	210	aodPHcells.SetCell(iCell,aodinPHcells.GetCellNumber(iCell),aodinPHcells.GetAmplitude(iCell));
	211	}
	212	aodPHcells.Sort();
	213	}
	214
	215	return;
	216	}
	217
	218	//__________________________________________________
	219	void AliAnalysisTaskPHOSPi0CalibSelection::CreateAODFromESD()
	220	{
	221
	222	// Copy Header, Vertex, CaloClusters and CaloCells from ESDs to AODs
	223
	224	AliESDEvent* esd = dynamic_cast<AliESDEvent*>(InputEvent());
	225
2dfb1428	226	if(!esd) {
	227	printf("AliAnalysisTaskPHOSPi0CalibSelection::CreateAODFromESD() - This event does not contain AODs?");
	228	return;
	229	}
	230
7a4cf423	231	// set arrays and pointers
	232	Float_t posF[3];
	233	Double_t pos[3];
	234
	235	Double_t covVtx[6];
	236
	237	for (Int_t i = 0; i < 6; i++) covVtx[i] = 0.;
	238
	239	// Update the header
	240
	241	AliAODHeader* header = AODEvent()->GetHeader();
	242	header->SetRunNumber(esd->GetRunNumber());
	243	header->SetBunchCrossNumber(esd->GetBunchCrossNumber());
	244	header->SetOrbitNumber(esd->GetOrbitNumber());
	245	header->SetPeriodNumber(esd->GetPeriodNumber());
	246	header->SetEventType(esd->GetEventType());
	247	header->SetMuonMagFieldScale(-999.); // FIXME
	248	header->SetCentrality(-999.); // FIXME
	249
	250
	251	header->SetTriggerMask(esd->GetTriggerMask());
	252	header->SetTriggerCluster(esd->GetTriggerCluster());
	253	header->SetMagneticField(esd->GetMagneticField());
	254	header->SetZDCN1Energy(esd->GetZDCN1Energy());
	255	header->SetZDCP1Energy(esd->GetZDCP1Energy());
	256	header->SetZDCN2Energy(esd->GetZDCN2Energy());
	257	header->SetZDCP2Energy(esd->GetZDCP2Energy());
	258	header->SetZDCEMEnergy(esd->GetZDCEMEnergy(0),esd->GetZDCEMEnergy(1));
	259	Float_t diamxy[2]={esd->GetDiamondX(),esd->GetDiamondY()};
	260	Float_t diamcov[3]; esd->GetDiamondCovXY(diamcov);
	261	header->SetDiamond(diamxy,diamcov);
	262	//
	263	//
	264	Int_t nVertices = 1 ;/* = prim. vtx*/;
	265	Int_t nCaloClus = esd->GetNumberOfCaloClusters();
	266
	267	AODEvent()->ResetStd(0, nVertices, 0, 0, 0, nCaloClus, 0, 0);
	268
	269	// Access to the AOD container of vertices
	270	TClonesArray &vertices = *(AODEvent()->GetVertices());
	271	Int_t jVertices=0;
	272
	273	// Add primary vertex. The primary tracks will be defined
	274	// after the loops on the composite objects (V0, cascades, kinks)
	275	const AliESDVertex *vtx = esd->GetPrimaryVertex();
	276
	277	vtx->GetXYZ(pos); // position
	278	vtx->GetCovMatrix(covVtx); //covariance matrix
	279
	280	AliAODVertex * primary = new(vertices[jVertices++])
	281	AliAODVertex(pos, covVtx, vtx->GetChi2toNDF(), NULL, -1, AliAODVertex::kPrimary);
	282	primary->SetName(vtx->GetName());
	283	primary->SetTitle(vtx->GetTitle());
	284
	285	// Access to the AOD container of clusters
	286	TClonesArray &caloClusters = *(AODEvent()->GetCaloClusters());
	287	Int_t jClusters=0;
	288
	289	for (Int_t iClust=0; iClust<nCaloClus; ++iClust) {
	290
	291	AliESDCaloCluster * cluster = esd->GetCaloCluster(iClust);
	292
	293	//Check which calorimeter information we want to keep.
	294	if(!cluster->IsPHOS()) continue ;
295
296	Int_t id = cluster->GetID();
297	Float_t energy = cluster->E();
298	cluster->GetPosition(posF);
299
300	AliAODCaloCluster *caloCluster = new(caloClusters[jClusters++])
301	AliAODCaloCluster(id,
302	0,
303	0x0,
304	energy,
305	posF,
306	NULL,
307	AliAODCluster::kPHOSNeutral);
308
309	caloCluster->SetCaloCluster(cluster->GetDistanceToBadChannel(),
c8fe2783	310	cluster->GetDispersion(),
7a4cf423	311	cluster->GetM20(), cluster->GetM02(),
	312	cluster->GetEmcCpvDistance(),
	313	cluster->GetNExMax(),cluster->GetTOF()) ;
	314
c8fe2783	315	caloCluster->SetPIDFromESD(cluster->GetPID());
7a4cf423	316	caloCluster->SetNCells(cluster->GetNCells());
	317	caloCluster->SetCellsAbsId(cluster->GetCellsAbsId());
	318	caloCluster->SetCellsAmplitudeFraction(cluster->GetCellsAmplitudeFraction());
	319
	320	}
	321	caloClusters.Expand(jClusters); // resize TObjArray to 'remove' slots for pseudo clusters
	322	// end of loop on calo clusters
	323
	324	// fill PHOS cell info
	325	if( esd->GetPHOSCells()) { // protection against missing ESD information
	326	AliESDCaloCells &esdPHcells = *(esd->GetPHOSCells());
	327	Int_t nPHcell = esdPHcells.GetNumberOfCells() ;
	328
	329	AliAODCaloCells &aodPHcells = *(AODEvent()->GetPHOSCells());
	330	aodPHcells.CreateContainer(nPHcell);
c8fe2783	331	aodPHcells.SetType(AliVCaloCells::kPHOSCell);
7a4cf423	332	for (Int_t iCell = 0; iCell < nPHcell; iCell++) {
	333	aodPHcells.SetCell(iCell,esdPHcells.GetCellNumber(iCell),esdPHcells.GetAmplitude(iCell));
	334	}
	335	aodPHcells.Sort();
	336	}
	337
	338	}
	339
	340	//__________________________________________________
e727d2f7	341	void AliAnalysisTaskPHOSPi0CalibSelection::UserCreateOutputObjects()
	342	{
	343	//Create output container
	344	fOutputContainer = new TList();
2dfb1428	345	const Int_t buffersize = 255;
2dfb1428	346	char hname[buffersize], htitl[buffersize];
e727d2f7	347
	348	for(Int_t iMod=0; iMod<5; iMod++) {
	349	for(Int_t iX=0; iX<64; iX++) {
	350	for(Int_t iZ=0; iZ<56; iZ++) {
2dfb1428	351	snprintf(hname,buffersize,"%d_%d_%d",iMod,iX,iZ);
	352	snprintf(htitl,buffersize,"Two-gamma inv. mass for mod %d, cell (%d,%d)",iMod,iX,iZ);
	353	fHmpi0[iMod][iX][iZ] = new TH1F(hname,htitl,100,0.,300.);
	354	fOutputContainer->Add(fHmpi0[iMod][iX][iZ]);
e727d2f7	355	}
	356	}
	357	}
	358
	359	fHmgg = new TH1F("hmgg","2-cluster invariant mass",100,0.,300.);
	360	fOutputContainer->Add(fHmgg);
	361
f6b9f90c	362	fCalibData = new AliPHOSCalibData();
	363	fPhosGeo = AliPHOSGeometry::GetInstance("IHEP") ;
	364
e727d2f7	365	}
e727d2f7	366
7a4cf423	367	//__________________________________________________
e727d2f7	368	void AliAnalysisTaskPHOSPi0CalibSelection::UserExec(Option_t* /* option */)
	369	{
	370	//Analysis per event.
29a41d05	371	if(DebugLevel() > 1) printf("AliAnalysisTaskPHOSPi0CalibSelection <<< Event %d >>>\n",(Int_t)Entry());
7a4cf423	372
e727d2f7	373	AliAODEvent* aod = 0x0;
7a4cf423	374	if(!strcmp(InputEvent()->GetName(),"AliAODEvent")) {
	375	//Input are ESDs
	376	aod = dynamic_cast<AliAODEvent*>(InputEvent());
2dfb1428	377	if(!aod) {
	378	printf("AliAnalysisTaskEMCALPi0CalibSelection::UserExec() - This event does not contain AODs?");
	379	return;
	380	}
	381
7a4cf423	382	// Create new AOD with only CaloClusters and CaloCells
	383	if(fCopyAOD) CreateAODFromAOD();
	384	}
	385	else if(!strcmp(InputEvent()->GetName(),"AliESDEvent")) {
	386	//Input are ESDs
	387	aod = AODEvent();
2dfb1428	388	if(!aod) {
	389	printf("AliAnalysisTaskPHOSPi0CalibSelection::UserExec() - This event does not contain AODs?");
	390	return;
	391	}
	392
7a4cf423	393	// Create AOD with CaloClusters and use it as input.
	394	// If filtering task is already executed, this is not needed.
	395	if(fCopyAOD) CreateAODFromESD();
	396	}
e727d2f7	397	else {
7a4cf423	398	printf("AliAnalysisTaskPHOSPi0CalibSelection: Unknown event type, STOP!\n");
7a4cf423	399	abort();
e727d2f7	400	}
	401
	402	Double_t v[] = {aod->GetVertex(0)->GetX(),aod->GetVertex(0)->GetY(),aod->GetVertex(0)->GetZ()}; //to check!!
	403	//aod->GetVertex()->GetXYZ(v) ;
	404	TVector3 vtx(v); //Check
	405
f6b9f90c	406	if(DebugLevel() > 1) printf("AliAnalysisTaskPHOSPi0CalibSelection Vertex: (%.3f,%.3f,%.3f)\n",vtx.X(),vtx.Y(),vtx.Z());
e727d2f7	407
e727d2f7	408	Int_t runNum = aod->GetRunNumber();
f6b9f90c	409	if(DebugLevel() > 1) printf("Run number: %d\n",runNum);
4b4efabc	410
	411	//Get the matrix with geometry information
	412	//Still not implemented in AOD, just a workaround to be able to work at least with ESDs
f6b9f90c	413	if(!strcmp(InputEvent()->GetName(),"AliAODEvent")) {
	414	if(DebugLevel() > 1)
	415	printf("AliAnalysisTaskPHOSPi0CalibSelection Use ideal geometry, values geometry matrix not kept in AODs.\n");
	416	}
4b4efabc	417	else{
f6b9f90c	418	if(DebugLevel() > 1) printf("AliAnalysisTaskPHOSPi0CalibSelection Load Misaligned matrices. \n");
4b4efabc	419	AliESDEvent* esd = dynamic_cast<AliESDEvent*>(InputEvent()) ;
2dfb1428	420	if(!esd) {
	421	printf("AliAnalysisTaskPHOSPi0CalibSelection::UserExec() - This event does not contain ESDs?");
	422	return;
	423	}
f6b9f90c	424	for(Int_t mod=0; mod<5; mod++){
	425	if(esd->GetPHOSMatrix(mod))
	426	fPhosGeo->SetMisalMatrix(esd->GetPHOSMatrix(mod),mod) ;
	427	}
e727d2f7	428	}
4b4efabc	429
f6b9f90c	430	if(DebugLevel() > 1) printf("AliAnalysisTaskPHOSPi0CalibSelection Will use fLogWeight %.3f .\n",fLogWeight);
e727d2f7	431
e727d2f7	432	Int_t mod1 = -1;
	433	TLorentzVector p1;
	434	TLorentzVector p2;
	435	TLorentzVector p12;
	436	Int_t relid[4] ;
	437	Int_t maxId;
	438
	439	TRefArray * caloClustersArr = new TRefArray();
	440	aod->GetPHOSClusters(caloClustersArr);
	441
	442	const Int_t kNumberOfPhosClusters = caloClustersArr->GetEntries() ;
f6b9f90c	443	if(DebugLevel() > 1) printf("AliAnalysisTaskPHOSPi0CalibSelection CaloClusters: %d\n", kNumberOfPhosClusters);
e727d2f7	444
	445	// PHOS cells
	446	AliAODCaloCells *phsCells = aod->GetPHOSCells();
	447
	448	// loop over PHOS clusters
	449	for(Int_t iClu=0; iClu<kNumberOfPhosClusters; iClu++) {
	450
	451	AliAODCaloCluster c1 = (AliAODCaloCluster ) caloClustersArr->At(iClu);
c8fe2783	452	if(!c1->IsPHOS()) continue; // EMCAL cluster!
e727d2f7	453
	454	Float_t e1i = c1->E(); // cluster energy before correction
	455	if(e1i<fEmin) continue;
	456
	457	AliPHOSAodCluster clu1(*c1);
4b4efabc	458	clu1.Recalibrate(fCalibData, phsCells);
4b4efabc	459	clu1.EvalAll(fLogWeight,vtx);
f6948be4	460	clu1.EnergyCorrection() ;
e727d2f7	461
	462	clu1.GetMomentum(p1,v);
	463
	464	MaxEnergyCellPos(phsCells,&clu1,maxId);
	465	fPhosGeo->AbsToRelNumbering(maxId, relid);
	466
	467	mod1 = relid[0]-1; // module
	468	Int_t iX = relid[2]-1; // cluster X-coord
	469	Int_t iZ = relid[3]-1; // cluster Z-coord
	470	Float_t e1ii = clu1.E(); // cluster energy after correction
	471
	472	for (Int_t jClu=iClu; jClu<kNumberOfPhosClusters; jClu++) {
	473	AliAODCaloCluster c2 = (AliAODCaloCluster ) caloClustersArr->At(jClu);
c8fe2783	474	if(!c2->IsPHOS()) continue; // EMCAL cluster!
e727d2f7	475	if(c2->IsEqual(c1)) continue;
	476
	477	Float_t e2i = c2->E();
	478	if(e2i<fEmin) continue;
	479
	480	AliPHOSAodCluster clu2(*c2);
4b4efabc	481	clu2.Recalibrate(fCalibData, phsCells);
4b4efabc	482	clu2.EvalAll(fLogWeight,vtx);
f6948be4	483	clu2.EnergyCorrection() ;
e727d2f7	484
	485	clu2.GetMomentum(p2,v);
	486	Float_t e2ii = clu2.E();
	487
	488	p12 = p1+p2;
	489
	490	fHmgg->Fill(p12.M()*1000);
	491	fHmpi0[mod1][iX][iZ]->Fill(p12.M()*1000);
	492
f6b9f90c	493	if(DebugLevel() > 1) printf("AliAnalysisTaskPHOSPi0CalibSelection Mass in (mod%d,%d,%d): %.3f GeV E1_i=%f E1_ii=%f E2_i=%f E2_ii=%f\n",
e727d2f7	494	mod1,iX,iZ,p12.M(),e1i,e1ii,e2i,e2ii);
	495	}
	496
	497	} // end of loop over PHOS clusters
	498
	499	delete caloClustersArr;
	500	PostData(1,fOutputContainer);
	501	}
	502
7a4cf423	503	//__________________________________________________
e727d2f7	504	void AliAnalysisTaskPHOSPi0CalibSelection::MaxEnergyCellPos(AliAODCaloCells cells, AliAODCaloCluster clu, Int_t& maxId)
	505	{
	506	//For a given CaloCluster calculates the absId of the cell
	507	//with maximum energy deposit.
	508
	509	Double_t eMax = -111;
	510
	511	for (Int_t iDig=0; iDig< clu->GetNCells(); iDig++) {
	512	Int_t cellAbsId = clu->GetCellAbsId(iDig);
	513	Double_t eCell = cells->GetCellAmplitude(cellAbsId)*clu->GetCellAmplitudeFraction(iDig);
	514	if(eCell>eMax) {
	515	eMax = eCell;
	516	maxId = cellAbsId;
	517	}
	518	}
	519
	520	}
4b4efabc	521
7a4cf423	522	//__________________________________________________
4b4efabc	523	void AliAnalysisTaskPHOSPi0CalibSelection::SetCalibCorrections(AliPHOSCalibData* cdata)
	524	{
	525	//Set new correction factors (~1) to calibration coefficients, delete previous.
	526
	527	if(fCalibData) delete fCalibData;
	528	fCalibData = cdata;
	529
	530	}
	531