[u/mrichter/AliRoot.git] / PWG4 / JetTasks / AliPWG4HighPtSpectra.cxx

/**************************************************************************
 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
 *                                                                        *
 * Author: The ALICE Off-line Project.                                    *
 * Contributors are mentioned in the code where appropriate.              *
 *                                                                        *
 * 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.                  *
 **************************************************************************/

//-----------------------------------------------------------------------
// Example of task (running locally, on AliEn and CAF),
// which provides standard way of calculating acceptance and efficiency
// between different steps of the procedure.
// The ouptut of the task is a AliCFContainer from which the efficiencies
// can be calculated
//-----------------------------------------------------------------------
// Author : Marta Verweij - UU
//-----------------------------------------------------------------------


#ifndef ALIPWG4HIGHPTSPECTRA_CXX
#define ALIPWG4HIGHPTSPECTRA_CXX

#include "AliPWG4HighPtSpectra.h"

#include "TVector3.h"
#include <iostream>
#include "TH1.h"
#include "TH2.h"
#include "TH3.h"
#include "TList.h"
#include "TChain.h"

#include "AliAnalysisManager.h"
#include "AliESDInputHandler.h"
#include "AliESDtrack.h"
#include "AliESDtrackCuts.h"
#include "AliExternalTrackParam.h"

#include "AliLog.h"

#include "AliStack.h"
#include "TParticle.h"
#include "AliMCEvent.h"
#include "AliMCEventHandler.h"
#include "AliCFContainer.h"

//#include "$ALICE_ROOT/PWG4/JetTasks/AliAnalysisHelperJetTasks.h"

//#include <iostream>
using namespace std; //required for resolving the 'cout' symbol

ClassImp(AliPWG4HighPtSpectra)

//__________________________________________________________________________
AliPWG4HighPtSpectra::AliPWG4HighPtSpectra() : AliAnalysisTask("AliPWG4HighPtSpectra", ""), 
  fReadAODData(0),
  fCFManagerPos(0x0),
  fCFManagerNeg(0x0),
  fESD(0),
  fTrackCuts(0),
  fTrigger(0),
  fHistList(0),
  fNEventAll(0),
  fNEventSel(0)
{
  //
  //Default ctor
  //
}
//___________________________________________________________________________
AliPWG4HighPtSpectra::AliPWG4HighPtSpectra(const Char_t* name) :
  AliAnalysisTask(name,""),
  fReadAODData(0),
  fCFManagerPos(0x0),
  fCFManagerNeg(0x0),
  fESD(0),
  fTrackCuts(),
  fTrigger(0),
  fHistList(0),
  fNEventAll(0),
  fNEventSel(0)
{
  //
  // Constructor. Initialization of Inputs and Outputs
  //
  AliDebug(2,Form("AliPWG4HighPtSpectra","Calling Constructor"));
  // Input slot #0 works with a TChain ESD
  DefineInput(0, TChain::Class());
  DefineOutput(0,TList::Class());
  DefineOutput(1,AliCFContainer::Class());
  DefineOutput(2,AliCFContainer::Class());
}

// //___________________________________________________________________________
// AliPWG4HighPtSpectra& AliPWG4HighPtSpectra::operator=(const AliPWG4HighPtSpectra& c) 
// {
//   //
//   // Assignment operator
//   //
//   if (this!=&c) {
//     AliAnalysisTask::operator=(c) ;
//     fReadAODData = c.fReadAODData ;
//     fCFManagerPos  = c.fCFManagerPos;
//     fCFManagerNeg  = c.fCFManagerNeg;
//     fHistList = c.fHistList;
//     fNEventAll = c.fNEventAll;
//     fNEventSel = c.fNEventSel;
//   }
//   return *this;
// }

// //___________________________________________________________________________
// AliPWG4HighPtSpectra::AliPWG4HighPtSpectra(const AliPWG4HighPtSpectra& c) :
//   AliAnalysisTask(c),
//   fReadAODData(c.fReadAODData),
//   fCFManagerPos(c.fCFManagerPos),
//   fCFManagerNeg(c.fCFManagerNeg),
//   fESD(c.fESD),
//   fTrackCuts(c.fTrackCuts),
//   fTrigger(c.fTrigger),
//   fHistList(c.fHistList),
//   fNEventAll(c.fNEventAll),
//   fNEventSel(c.fNEventSel)
// {
//   //
//   // Copy Constructor
//   //
// }

// //___________________________________________________________________________
// AliPWG4HighPtSpectra::~AliPWG4HighPtSpectra() {
//   //
//   //destructor
//   //
//   Info("~AliPWG4HighPtSpectra","Calling Destructor");
//   if (fCFManagerPos)           delete fCFManagerPos ;
//   if (fCFManagerNeg)           delete fCFManagerNeg ;
//   if (fNEventAll)              delete fNEventAll ;
//   if (fNEventSel)              delete fNEventSel ;
// }
//________________________________________________________________________
void AliPWG4HighPtSpectra::ConnectInputData(Option_t *) 
{
  // Connect ESD here
  // Called once
  AliDebug(2,Form(">> AliPWG4HighPtSpectra::ConnectInputData \n"));
  //  cout << "cout >> AliPWG4HighPtSpectra::ConnectInputData" << endl;
  printf(">> AliPWG4HighPtSpectra::ConnectInputData \n");

  TTree* tree = dynamic_cast<TTree*> (GetInputData(0));
  if (!tree) {
    AliDebug(2,Form("ERROR: Could not read chain from input slot 0"));
  } else {
    
    AliESDInputHandler *esdH = dynamic_cast<AliESDInputHandler*> (AliAnalysisManager::GetAnalysisManager()->GetInputEventHandler());
    
    if (!esdH) {
      AliDebug(2,Form("ERROR: Could not get ESDInputHandler"));
    } else {
      fESD = esdH->GetEvent();
    }
  }
  
}
//_________________________________________________
void AliPWG4HighPtSpectra::Exec(Option_t *)
{
  //
  // Main loop function
  //
  AliDebug(2,Form(">> AliPWG4HighPtSpectra::Exec \n"));  

  // All events without selection
  fNEventAll->Fill(0.);

  if (!fESD) {
    AliDebug(2,Form("ERROR: fESD not available"));
    PostData(0,fHistList);
    PostData(1,fCFManagerPos->GetParticleContainer());
    PostData(2,fCFManagerNeg->GetParticleContainer());
    return;
  }

  Bool_t isSelected = ((AliInputEventHandler*)(AliAnalysisManager::GetAnalysisManager()->GetInputEventHandler()))->IsEventSelected();
  if(!isSelected) { //Select collison candidates
    AliDebug(2,Form(" Trigger Selection: event REJECTED ... "));
    PostData(0,fHistList);
    PostData(1,fCFManagerPos->GetParticleContainer());
    PostData(2,fCFManagerNeg->GetParticleContainer());
    return;
  }

  // Process MC truth, therefore we receive the AliAnalysisManager and ask it for the AliMCEventHandler
  // This handler can return the current MC event
  
  AliMCEventHandler *eventHandler = dynamic_cast<AliMCEventHandler*> (AliAnalysisManager::GetAnalysisManager()->GetMCtruthEventHandler());
  //  AliMCEventHandler* eventHandler = (AliMCEventHandler*)(AliAnalysisManager::GetAnalysisManager()->GetMCtruthEventHandler());
  
  AliStack* stack = 0x0;
  AliMCEvent* mcEvent = 0x0;
  
  if(eventHandler) {
    mcEvent = eventHandler->MCEvent();
    if (!mcEvent) {
      AliDebug(2,Form("ERROR: Could not retrieve MC event"));
      PostData(0,fHistList);
      PostData(1,fCFManagerPos->GetParticleContainer());
    PostData(2,fCFManagerNeg->GetParticleContainer());
    return;
    }
    
    AliDebug(2,Form("MC particles: %d", mcEvent->GetNumberOfTracks()));
    
    stack = mcEvent->Stack();                //Particles Stack
    
    AliDebug(2,Form("MC particles stack: %d", stack->GetNtrack()));
  }
  
  const AliESDVertex *vtx = fESD->GetPrimaryVertex();
  AliDebug(2,Form("Vertex title %s, status %d, nCont %d\n",vtx->GetTitle(), vtx->GetStatus(), vtx->GetNContributors()));
  // Need vertex cut
  if (vtx->GetNContributors() < 2) {
    PostData(0,fHistList);
    PostData(1,fCFManagerPos->GetParticleContainer());
    PostData(2,fCFManagerNeg->GetParticleContainer());
    return;
  }
  
  double primVtx[3];
  vtx->GetXYZ(primVtx);
  if(TMath::Sqrt(primVtx[0]*primVtx[0] + primVtx[1]*primVtx[1])>1. || TMath::Abs(primVtx[2]>10.)){
    PostData(0,fHistList);
    PostData(1,fCFManagerPos->GetParticleContainer());
    PostData(2,fCFManagerNeg->GetParticleContainer());
    return;
  }
  
  if(!fESD->GetNumberOfTracks() || fESD->GetNumberOfTracks()<2){ 
    // Post output data
    PostData(0,fHistList);
    PostData(1,fCFManagerPos->GetParticleContainer());
    PostData(2,fCFManagerNeg->GetParticleContainer());
    return;
  }
  Int_t nTracks = fESD->GetNumberOfTracks();
  AliDebug(2,Form("nTracks %d", nTracks));

  if(!fTrackCuts) { 
    // Post output data
    PostData(0,fHistList);
    PostData(1,fCFManagerPos->GetParticleContainer());
    PostData(2,fCFManagerNeg->GetParticleContainer());
    return;
  }

  // Selected events for analysis
  fNEventSel->Fill(0.);
  
  
  Double_t containerInputRec[5] ;
  Double_t containerInputTPConly[5];
  Double_t containerInputMC[5];
  //Now go to rec level
  for (Int_t iTrack = 0; iTrack<nTracks; iTrack++) 
    {   
      if(!fESD->GetTrack(iTrack) ) continue;
      AliESDtrack* track = fESD->GetTrack(iTrack);
      if(!(AliExternalTrackParam *)track->GetTPCInnerParam()) continue;
      AliExternalTrackParam *trackTPC = (AliExternalTrackParam *)track->GetTPCInnerParam();
      if(!track || !trackTPC) continue;

      Float_t dca2D, dcaZ;
      track->GetImpactParameters(dca2D,dcaZ);
      Float_t dca2DTPC, dcaZTPC;
      track->GetImpactParametersTPC(dca2DTPC,dcaZTPC); 
      Float_t chi2PerClusterTPC = -1.;
      Float_t nClustersTPC = track->GetTPCNcls();//track->GetTPCclusters(0);
      if(nClustersTPC>0.) chi2PerClusterTPC = track->GetTPCchi2()/(2.*nClustersTPC-5.);
      Float_t chi2PerClusterTPCIter1 = -1.;
      Float_t nClustersTPCIter1 = track->GetTPCNclsIter1();   
      if(nClustersTPCIter1>0.) chi2PerClusterTPCIter1 = track->GetTPCchi2Iter1()/(2.*nClustersTPCIter1-5.);

      //fill the container
      containerInputRec[0] = track->Pt();
      containerInputRec[1] = track->Phi();
      containerInputRec[2] = track->Eta();
      containerInputRec[3] = dca2D;
      containerInputRec[4] = chi2PerClusterTPC;

      containerInputTPConly[0] = trackTPC->Pt();
      containerInputTPConly[1] = trackTPC->Phi();
      containerInputTPConly[2] = trackTPC->Eta();
      containerInputTPConly[3] = dca2DTPC/10.; //Divide by 10 in order to store in same container. Should be corrected back when looking at output.
      containerInputTPConly[4] = chi2PerClusterTPCIter1;//TPC;

      if (fTrackCuts->AcceptTrack(track)) {
	if(track->GetSign()>0.) {
	  fCFManagerPos->GetParticleContainer()->Fill(containerInputRec,kStepReconstructed);
	  fCFManagerPos->GetParticleContainer()->Fill(containerInputTPConly,kStepReconstructedTPCOnly);
	}
	if(track->GetSign()<0.) {
	  fCFManagerNeg->GetParticleContainer()->Fill(containerInputRec,kStepReconstructed);
	  fCFManagerNeg->GetParticleContainer()->Fill(containerInputTPConly,kStepReconstructedTPCOnly);
	}
	
  	
	//Only fill the secondary particle container if MC information is available
	if(eventHandler) {
	  Int_t label = TMath::Abs(track->GetLabel());
	  TParticle *particle = stack->Particle(label) ;
	  if(!particle) continue;

	  containerInputMC[0] = particle->Pt();      
	  containerInputMC[1] = particle->Phi();      
	  containerInputMC[2] = particle->Eta();  
	  containerInputMC[3] = 0.0;      
	  containerInputMC[4] = 0.0;  

	  if(particle->GetPDG()->Charge()>0.) {
	    fCFManagerPos->GetParticleContainer()->Fill(containerInputMC,kStepReconstructedMC);
	  }
	  if(particle->GetPDG()->Charge()<0.) {
	    fCFManagerNeg->GetParticleContainer()->Fill(containerInputMC,kStepReconstructedMC);
	  }

	  if (!stack->IsPhysicalPrimary(label) ) {
	    if(particle->GetPDG()->Charge()>0.) {
	      fCFManagerPos->GetParticleContainer()->Fill(containerInputRec,kStepSecondaries);
	    }
	    if(particle->GetPDG()->Charge()<0.) {
	      fCFManagerNeg->GetParticleContainer()->Fill(containerInputRec,kStepSecondaries);
	    }
	  }
	}
	
      }
      
    }
  

  //Fill MC containters if particles are findable
  if(eventHandler) {
    for(int iPart = 1; iPart<(mcEvent->GetNumberOfTracks()); iPart++)//stack->GetNprimary();
      {
	AliMCParticle *mcPart  = (AliMCParticle*)mcEvent->GetTrack(iPart);
	if(!mcPart) continue;
	
	//fill the container
	containerInputMC[0] = mcPart->Pt();
	containerInputMC[1] = mcPart->Phi();      
	containerInputMC[2] = mcPart->Eta();  
	containerInputMC[3] = 0.0;
	containerInputMC[4] = 0.0;

	int counter;
	Float_t trackLengthTPC = 0.;
	if(mcPart->Charge()>0. && fCFManagerPos->CheckParticleCuts(3,mcPart)) {
	  fCFManagerPos->GetParticleContainer()->Fill(containerInputMC,kStepMCAcceptance) ;
	  trackLengthTPC = mcPart->GetTPCTrackLength(fESD->GetMagneticField(),0.1,counter,3.0);
	  if(trackLengthTPC > (float)fTrackCuts->GetMinNClusterTPC()) fCFManagerPos->GetParticleContainer()->Fill(containerInputMC,kStepMCtrackable) ;
	}
	if(mcPart->Charge()<0. && fCFManagerNeg->CheckParticleCuts(3,mcPart)) {
	  fCFManagerNeg->GetParticleContainer()->Fill(containerInputMC,kStepMCAcceptance) ;
	  trackLengthTPC = mcPart->GetTPCTrackLength(fESD->GetMagneticField(),0.1,counter,3.0);
	  if(trackLengthTPC > (float)fTrackCuts->GetMinNClusterTPC()) fCFManagerNeg->GetParticleContainer()->Fill(containerInputMC,kStepMCtrackable) ;
	}
      }
  }
  
  PostData(0,fHistList);
  PostData(1,fCFManagerPos->GetParticleContainer());
  PostData(2,fCFManagerNeg->GetParticleContainer());
  
}


//___________________________________________________________________________
void AliPWG4HighPtSpectra::Terminate(Option_t*)
{
  // The Terminate() function is the last function to be called during
  // a query. It always runs on the client, it can be used to present
  // the results graphically or save the results to file.
}

//___________________________________________________________________________
void AliPWG4HighPtSpectra::CreateOutputObjects() {
  //HERE ONE CAN CREATE OUTPUT OBJECTS, IN PARTICULAR IF THE OBJECT PARAMETERS DON'T NEED
  //TO BE SET BEFORE THE EXECUTION OF THE TASK
  //
  AliDebug(2,Form("CreateOutputObjects","CreateOutputObjects of task %s", GetName()));

  Bool_t oldStatus = TH1::AddDirectoryStatus();
  TH1::AddDirectory(kFALSE); 

  //slot #1
  OpenFile(0);
  fHistList = new TList();
  fNEventAll = new TH1F("fNEventAll","NEventAll",1,-0.5,0.5);
  fHistList->Add(fNEventAll);
  fNEventSel = new TH1F("fNEventSel","NEvent Selected for analysis",1,-0.5,0.5);
  fHistList->Add(fNEventSel);

  TH1::AddDirectory(oldStatus);   

}

#endif
Commit	Line	Data
fdceab34	1	/**************************************************************************
	2	* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
	3	* *
	4	* Author: The ALICE Off-line Project. *
	5	* Contributors are mentioned in the code where appropriate. *
	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	// Example of task (running locally, on AliEn and CAF),
	18	// which provides standard way of calculating acceptance and efficiency
	19	// between different steps of the procedure.
	20	// The ouptut of the task is a AliCFContainer from which the efficiencies
	21	// can be calculated
	22	//-----------------------------------------------------------------------
	23	// Author : Marta Verweij - UU
	24	//-----------------------------------------------------------------------
	25
	26
67ebd013	27	#ifndef ALIPWG4HIGHPTSPECTRA_CXX
67ebd013	28	#define ALIPWG4HIGHPTSPECTRA_CXX
fdceab34	29
	30	#include "AliPWG4HighPtSpectra.h"
	31
67ebd013	32	#include "TVector3.h"
	33	#include <iostream>
	34	#include "TH1.h"
	35	#include "TH2.h"
	36	#include "TH3.h"
	37	#include "TList.h"
	38	#include "TChain.h"
67ebd013	39
	40	#include "AliAnalysisManager.h"
	41	#include "AliESDInputHandler.h"
	42	#include "AliESDtrack.h"
	43	#include "AliESDtrackCuts.h"
	44	#include "AliExternalTrackParam.h"
65e8ecdd	45
67ebd013	46	#include "AliLog.h"
67ebd013	47
fdceab34	48	#include "AliStack.h"
fdceab34	49	#include "TParticle.h"
fdceab34	50	#include "AliMCEvent.h"
fdceab34	51	#include "AliMCEventHandler.h"
fdceab34	52	#include "AliCFContainer.h"
fdceab34	53
67ebd013	54	//#include "$ALICE_ROOT/PWG4/JetTasks/AliAnalysisHelperJetTasks.h"
	55
	56	//#include <iostream>
fdceab34	57	using namespace std; //required for resolving the 'cout' symbol
	58
	59	ClassImp(AliPWG4HighPtSpectra)
	60
	61	//__________________________________________________________________________
	62	AliPWG4HighPtSpectra::AliPWG4HighPtSpectra() : AliAnalysisTask("AliPWG4HighPtSpectra", ""),
	63	fReadAODData(0),
67ebd013	64	fCFManagerPos(0x0),
67ebd013	65	fCFManagerNeg(0x0),
fdceab34	66	fESD(0),
fdceab34	67	fTrackCuts(0),
b5cc0c6d	68	fTrigger(0),
fdceab34	69	fHistList(0),
b5cc0c6d	70	fNEventAll(0),
b5cc0c6d	71	fNEventSel(0)
fdceab34	72	{
	73	//
	74	//Default ctor
	75	//
	76	}
	77	//___________________________________________________________________________
	78	AliPWG4HighPtSpectra::AliPWG4HighPtSpectra(const Char_t* name) :
	79	AliAnalysisTask(name,""),
	80	fReadAODData(0),
67ebd013	81	fCFManagerPos(0x0),
67ebd013	82	fCFManagerNeg(0x0),
fdceab34	83	fESD(0),
67ebd013	84	fTrackCuts(),
b5cc0c6d	85	fTrigger(0),
fdceab34	86	fHistList(0),
b5cc0c6d	87	fNEventAll(0),
b5cc0c6d	88	fNEventSel(0)
fdceab34	89	{
	90	//
	91	// Constructor. Initialization of Inputs and Outputs
	92	//
67ebd013	93	AliDebug(2,Form("AliPWG4HighPtSpectra","Calling Constructor"));
fdceab34	94	// Input slot #0 works with a TChain ESD
	95	DefineInput(0, TChain::Class());
	96	DefineOutput(0,TList::Class());
	97	DefineOutput(1,AliCFContainer::Class());
67ebd013	98	DefineOutput(2,AliCFContainer::Class());
fdceab34	99	}
fdceab34	100
67ebd013	101	// //___________________________________________________________________________
	102	// AliPWG4HighPtSpectra& AliPWG4HighPtSpectra::operator=(const AliPWG4HighPtSpectra& c)
	103	// {
	104	// //
	105	// // Assignment operator
	106	// //
	107	// if (this!=&c) {
	108	// AliAnalysisTask::operator=(c) ;
	109	// fReadAODData = c.fReadAODData ;
	110	// fCFManagerPos = c.fCFManagerPos;
	111	// fCFManagerNeg = c.fCFManagerNeg;
	112	// fHistList = c.fHistList;
	113	// fNEventAll = c.fNEventAll;
	114	// fNEventSel = c.fNEventSel;
	115	// }
	116	// return *this;
	117	// }
	118
	119	// //___________________________________________________________________________
	120	// AliPWG4HighPtSpectra::AliPWG4HighPtSpectra(const AliPWG4HighPtSpectra& c) :
	121	// AliAnalysisTask(c),
	122	// fReadAODData(c.fReadAODData),
	123	// fCFManagerPos(c.fCFManagerPos),
	124	// fCFManagerNeg(c.fCFManagerNeg),
	125	// fESD(c.fESD),
	126	// fTrackCuts(c.fTrackCuts),
	127	// fTrigger(c.fTrigger),
	128	// fHistList(c.fHistList),
	129	// fNEventAll(c.fNEventAll),
	130	// fNEventSel(c.fNEventSel)
	131	// {
	132	// //
	133	// // Copy Constructor
	134	// //
	135	// }
	136
	137	// //___________________________________________________________________________
	138	// AliPWG4HighPtSpectra::~AliPWG4HighPtSpectra() {
	139	// //
	140	// //destructor
	141	// //
	142	// Info("~AliPWG4HighPtSpectra","Calling Destructor");
	143	// if (fCFManagerPos) delete fCFManagerPos ;
	144	// if (fCFManagerNeg) delete fCFManagerNeg ;
	145	// if (fNEventAll) delete fNEventAll ;
	146	// if (fNEventSel) delete fNEventSel ;
	147	// }
fdceab34	148	//________________________________________________________________________
	149	void AliPWG4HighPtSpectra::ConnectInputData(Option_t *)
	150	{
	151	// Connect ESD here
	152	// Called once
df943115	153	AliDebug(2,Form(">> AliPWG4HighPtSpectra::ConnectInputData \n"));
67ebd013	154	// cout << "cout >> AliPWG4HighPtSpectra::ConnectInputData" << endl;
67ebd013	155	printf(">> AliPWG4HighPtSpectra::ConnectInputData \n");
fdceab34	156
	157	TTree* tree = dynamic_cast<TTree*> (GetInputData(0));
	158	if (!tree) {
df943115	159	AliDebug(2,Form("ERROR: Could not read chain from input slot 0"));
fdceab34	160	} else {
	161
	162	AliESDInputHandler esdH = dynamic_cast<AliESDInputHandler> (AliAnalysisManager::GetAnalysisManager()->GetInputEventHandler());
	163
	164	if (!esdH) {
df943115	165	AliDebug(2,Form("ERROR: Could not get ESDInputHandler"));
67ebd013	166	} else {
fdceab34	167	fESD = esdH->GetEvent();
67ebd013	168	}
fdceab34	169	}
67ebd013	170
fdceab34	171	}
fdceab34	172	//_________________________________________________
67ebd013	173	void AliPWG4HighPtSpectra::Exec(Option_t *)
fdceab34	174	{
	175	//
	176	// Main loop function
	177	//
df943115	178	AliDebug(2,Form(">> AliPWG4HighPtSpectra::Exec \n"));
fdceab34	179
b5cc0c6d	180	// All events without selection
	181	fNEventAll->Fill(0.);
	182
fdceab34	183	if (!fESD) {
df943115	184	AliDebug(2,Form("ERROR: fESD not available"));
67ebd013	185	PostData(0,fHistList);
	186	PostData(1,fCFManagerPos->GetParticleContainer());
	187	PostData(2,fCFManagerNeg->GetParticleContainer());
fdceab34	188	return;
	189	}
	190
67ebd013	191	Bool_t isSelected = ((AliInputEventHandler*)(AliAnalysisManager::GetAnalysisManager()->GetInputEventHandler()))->IsEventSelected();
67ebd013	192	if(!isSelected) { //Select collison candidates
b5cc0c6d	193	AliDebug(2,Form(" Trigger Selection: event REJECTED ... "));
cd9a6fa2	194	PostData(0,fHistList);
67ebd013	195	PostData(1,fCFManagerPos->GetParticleContainer());
67ebd013	196	PostData(2,fCFManagerNeg->GetParticleContainer());
b5cc0c6d	197	return;
67ebd013	198	}
b5cc0c6d	199
fdceab34	200	// Process MC truth, therefore we receive the AliAnalysisManager and ask it for the AliMCEventHandler
fdceab34	201	// This handler can return the current MC event
67ebd013	202
	203	AliMCEventHandler eventHandler = dynamic_cast<AliMCEventHandler> (AliAnalysisManager::GetAnalysisManager()->GetMCtruthEventHandler());
	204	// AliMCEventHandler* eventHandler = (AliMCEventHandler*)(AliAnalysisManager::GetAnalysisManager()->GetMCtruthEventHandler());
	205
0cc50ca6	206	AliStack* stack = 0x0;
0cc50ca6	207	AliMCEvent* mcEvent = 0x0;
67ebd013	208
0cc50ca6	209	if(eventHandler) {
	210	mcEvent = eventHandler->MCEvent();
	211	if (!mcEvent) {
	212	AliDebug(2,Form("ERROR: Could not retrieve MC event"));
67ebd013	213	PostData(0,fHistList);
	214	PostData(1,fCFManagerPos->GetParticleContainer());
	215	PostData(2,fCFManagerNeg->GetParticleContainer());
	216	return;
0cc50ca6	217	}
	218
	219	AliDebug(2,Form("MC particles: %d", mcEvent->GetNumberOfTracks()));
	220
	221	stack = mcEvent->Stack(); //Particles Stack
	222
	223	AliDebug(2,Form("MC particles stack: %d", stack->GetNtrack()));
fdceab34	224	}
0cc50ca6	225
fdceab34	226	const AliESDVertex *vtx = fESD->GetPrimaryVertex();
67ebd013	227	AliDebug(2,Form("Vertex title %s, status %d, nCont %d\n",vtx->GetTitle(), vtx->GetStatus(), vtx->GetNContributors()));
fdceab34	228	// Need vertex cut
67ebd013	229	if (vtx->GetNContributors() < 2) {
cd9a6fa2	230	PostData(0,fHistList);
67ebd013	231	PostData(1,fCFManagerPos->GetParticleContainer());
67ebd013	232	PostData(2,fCFManagerNeg->GetParticleContainer());
cd9a6fa2	233	return;
cd9a6fa2	234	}
67ebd013	235
b5cc0c6d	236	double primVtx[3];
b5cc0c6d	237	vtx->GetXYZ(primVtx);
67ebd013	238	if(TMath::Sqrt(primVtx[0]primVtx[0] + primVtx[1]primVtx[1])>1. \|\| TMath::Abs(primVtx[2]>10.)){
cd9a6fa2	239	PostData(0,fHistList);
67ebd013	240	PostData(1,fCFManagerPos->GetParticleContainer());
	241	PostData(2,fCFManagerNeg->GetParticleContainer());
	242	return;
	243	}
	244
	245	if(!fESD->GetNumberOfTracks() \|\| fESD->GetNumberOfTracks()<2){
	246	// Post output data
	247	PostData(0,fHistList);
	248	PostData(1,fCFManagerPos->GetParticleContainer());
	249	PostData(2,fCFManagerNeg->GetParticleContainer());
cd9a6fa2	250	return;
cd9a6fa2	251	}
fdceab34	252	Int_t nTracks = fESD->GetNumberOfTracks();
fdceab34	253	AliDebug(2,Form("nTracks %d", nTracks));
fdceab34	254
67ebd013	255	if(!fTrackCuts) {
	256	// Post output data
	257	PostData(0,fHistList);
	258	PostData(1,fCFManagerPos->GetParticleContainer());
	259	PostData(2,fCFManagerNeg->GetParticleContainer());
	260	return;
	261	}
	262
b5cc0c6d	263	// Selected events for analysis
b5cc0c6d	264	fNEventSel->Fill(0.);
67ebd013	265
	266
	267	Double_t containerInputRec[5] ;
	268	Double_t containerInputTPConly[5];
	269	Double_t containerInputMC[5];
fdceab34	270	//Now go to rec level
	271	for (Int_t iTrack = 0; iTrack<nTracks; iTrack++)
	272	{
	273	if(!fESD->GetTrack(iTrack) ) continue;
	274	AliESDtrack* track = fESD->GetTrack(iTrack);
	275	if(!(AliExternalTrackParam *)track->GetTPCInnerParam()) continue;
	276	AliExternalTrackParam trackTPC = (AliExternalTrackParam )track->GetTPCInnerParam();
	277	if(!track \|\| !trackTPC) continue;
	278
67ebd013	279	Float_t dca2D, dcaZ;
	280	track->GetImpactParameters(dca2D,dcaZ);
	281	Float_t dca2DTPC, dcaZTPC;
	282	track->GetImpactParametersTPC(dca2DTPC,dcaZTPC);
	283	Float_t chi2PerClusterTPC = -1.;
	284	Float_t nClustersTPC = track->GetTPCNcls();//track->GetTPCclusters(0);
38ecb6a5	285	if(nClustersTPC>0.) chi2PerClusterTPC = track->GetTPCchi2()/(2.*nClustersTPC-5.);
	286	Float_t chi2PerClusterTPCIter1 = -1.;
	287	Float_t nClustersTPCIter1 = track->GetTPCNclsIter1();
	288	if(nClustersTPCIter1>0.) chi2PerClusterTPCIter1 = track->GetTPCchi2Iter1()/(2.*nClustersTPCIter1-5.);
67ebd013	289
fdceab34	290	//fill the container
fdceab34	291	containerInputRec[0] = track->Pt();
67ebd013	292	containerInputRec[1] = track->Phi();
	293	containerInputRec[2] = track->Eta();
	294	containerInputRec[3] = dca2D;
	295	containerInputRec[4] = chi2PerClusterTPC;
	296
fdceab34	297	containerInputTPConly[0] = trackTPC->Pt();
67ebd013	298	containerInputTPConly[1] = trackTPC->Phi();
67ebd013	299	containerInputTPConly[2] = trackTPC->Eta();
add06ceb	300	containerInputTPConly[3] = dca2DTPC/10.; //Divide by 10 in order to store in same container. Should be corrected back when looking at output.
38ecb6a5	301	containerInputTPConly[4] = chi2PerClusterTPCIter1;//TPC;
0cc50ca6	302
fdceab34	303	if (fTrackCuts->AcceptTrack(track)) {
67ebd013	304	if(track->GetSign()>0.) {
	305	fCFManagerPos->GetParticleContainer()->Fill(containerInputRec,kStepReconstructed);
	306	fCFManagerPos->GetParticleContainer()->Fill(containerInputTPConly,kStepReconstructedTPCOnly);
	307	}
	308	if(track->GetSign()<0.) {
	309	fCFManagerNeg->GetParticleContainer()->Fill(containerInputRec,kStepReconstructed);
	310	fCFManagerNeg->GetParticleContainer()->Fill(containerInputTPConly,kStepReconstructedTPCOnly);
	311	}
0cc50ca6	312
67ebd013	313
0cc50ca6	314	//Only fill the secondary particle container if MC information is available
	315	if(eventHandler) {
	316	Int_t label = TMath::Abs(track->GetLabel());
	317	TParticle *particle = stack->Particle(label) ;
	318	if(!particle) continue;
65e8ecdd	319
0cc50ca6	320	containerInputMC[0] = particle->Pt();
67ebd013	321	containerInputMC[1] = particle->Phi();
	322	containerInputMC[2] = particle->Eta();
	323	containerInputMC[3] = 0.0;
	324	containerInputMC[4] = 0.0;
	325
	326	if(particle->GetPDG()->Charge()>0.) {
	327	fCFManagerPos->GetParticleContainer()->Fill(containerInputMC,kStepReconstructedMC);
	328	}
	329	if(particle->GetPDG()->Charge()<0.) {
	330	fCFManagerNeg->GetParticleContainer()->Fill(containerInputMC,kStepReconstructedMC);
	331	}
	332
0cc50ca6	333	if (!stack->IsPhysicalPrimary(label) ) {
67ebd013	334	if(particle->GetPDG()->Charge()>0.) {
	335	fCFManagerPos->GetParticleContainer()->Fill(containerInputRec,kStepSecondaries);
	336	}
	337	if(particle->GetPDG()->Charge()<0.) {
	338	fCFManagerNeg->GetParticleContainer()->Fill(containerInputRec,kStepSecondaries);
	339	}
0cc50ca6	340	}
0cc50ca6	341	}
67ebd013	342
fdceab34	343	}
	344
	345	}
67ebd013	346
fdceab34	347
65e8ecdd	348	//Fill MC containters if particles are findable
0cc50ca6	349	if(eventHandler) {
	350	for(int iPart = 1; iPart<(mcEvent->GetNumberOfTracks()); iPart++)//stack->GetNprimary();
	351	{
	352	AliMCParticle mcPart = (AliMCParticle)mcEvent->GetTrack(iPart);
	353	if(!mcPart) continue;
	354
	355	//fill the container
	356	containerInputMC[0] = mcPart->Pt();
67ebd013	357	containerInputMC[1] = mcPart->Phi();
	358	containerInputMC[2] = mcPart->Eta();
	359	containerInputMC[3] = 0.0;
	360	containerInputMC[4] = 0.0;
	361
0cc50ca6	362	int counter;
65e8ecdd	363	Float_t trackLengthTPC = 0.;
67ebd013	364	if(mcPart->Charge()>0. && fCFManagerPos->CheckParticleCuts(3,mcPart)) {
e7b49043	365	fCFManagerPos->GetParticleContainer()->Fill(containerInputMC,kStepMCAcceptance) ;
65e8ecdd	366	trackLengthTPC = mcPart->GetTPCTrackLength(fESD->GetMagneticField(),0.1,counter,3.0);
65e8ecdd	367	if(trackLengthTPC > (float)fTrackCuts->GetMinNClusterTPC()) fCFManagerPos->GetParticleContainer()->Fill(containerInputMC,kStepMCtrackable) ;
67ebd013	368	}
67ebd013	369	if(mcPart->Charge()<0. && fCFManagerNeg->CheckParticleCuts(3,mcPart)) {
e7b49043	370	fCFManagerNeg->GetParticleContainer()->Fill(containerInputMC,kStepMCAcceptance) ;
65e8ecdd	371	trackLengthTPC = mcPart->GetTPCTrackLength(fESD->GetMagneticField(),0.1,counter,3.0);
65e8ecdd	372	if(trackLengthTPC > (float)fTrackCuts->GetMinNClusterTPC()) fCFManagerNeg->GetParticleContainer()->Fill(containerInputMC,kStepMCtrackable) ;
67ebd013	373	}
0cc50ca6	374	}
0cc50ca6	375	}
67ebd013	376
67ebd013	377	PostData(0,fHistList);
	378	PostData(1,fCFManagerPos->GetParticleContainer());
	379	PostData(2,fCFManagerNeg->GetParticleContainer());
	380
fdceab34	381	}
	382
	383
	384	//___________________________________________________________________________
	385	void AliPWG4HighPtSpectra::Terminate(Option_t*)
	386	{
	387	// The Terminate() function is the last function to be called during
	388	// a query. It always runs on the client, it can be used to present
	389	// the results graphically or save the results to file.
fdceab34	390	}
fdceab34	391
fdceab34	392	//___________________________________________________________________________
	393	void AliPWG4HighPtSpectra::CreateOutputObjects() {
	394	//HERE ONE CAN CREATE OUTPUT OBJECTS, IN PARTICULAR IF THE OBJECT PARAMETERS DON'T NEED
	395	//TO BE SET BEFORE THE EXECUTION OF THE TASK
	396	//
df943115	397	AliDebug(2,Form("CreateOutputObjects","CreateOutputObjects of task %s", GetName()));
df943115	398
67ebd013	399	Bool_t oldStatus = TH1::AddDirectoryStatus();
	400	TH1::AddDirectory(kFALSE);
	401
fdceab34	402	//slot #1
b5cc0c6d	403	OpenFile(0);
	404	fHistList = new TList();
	405	fNEventAll = new TH1F("fNEventAll","NEventAll",1,-0.5,0.5);
	406	fHistList->Add(fNEventAll);
	407	fNEventSel = new TH1F("fNEventSel","NEvent Selected for analysis",1,-0.5,0.5);
	408	fHistList->Add(fNEventSel);
fdceab34	409
67ebd013	410	TH1::AddDirectory(oldStatus);
67ebd013	411
fdceab34	412	}
	413
	414	#endif