[u/mrichter/AliRoot.git] / PWG4 / totEt / AliAnalysisHadEt.cxx

//Created by Christine Nattrass, Rebecca Scott, Irakli Martashvili
//University of Tennessee at Knoxville
//
// This class is designed for the analysis of the hadronic component of 
// transverse energy.  It is used by AliAnalysisTaskHadEt.
// This gets information about the hadronic component of the transverse energy 
// from tracks reconstructed in an event
// it has daughters, AliAnalysisHadEtMonteCarlo and 
// AliAnalysisHadEtReconstructed which loop over either Monte Carlo data or 
// real data to get Et

#include "AliAnalysisHadEt.h"
#include "TMath.h"
#include "TList.h"
#include "TH1F.h"
#include "TH2F.h"
#include <iostream>
#include "AliAnalysisEtCuts.h"
#include "AliMCEvent.h"
#include "AliVEvent.h"
#include "AliStack.h"
#include "AliESDtrackCuts.h"
#include "TDatabasePDG.h"
#include "TParticle.h"
#include "Rtypes.h"
#include "AliPDG.h"

using namespace std;

ClassImp(AliAnalysisHadEt);


Int_t AliAnalysisHadEt::fgnumOfEtaBins = 16;
Float_t AliAnalysisHadEt::fgEtaAxis[17]={-0.78, -0.7, -0.58, -0.46, -0.34, -0.22, -0.12, -0.06, -0.0, 0.06, 0.12, 0.22, 0.34, 0.46, 0.58, 0.7, 0.78};
Int_t AliAnalysisHadEt::fgNumOfPtBins = 111;
Float_t AliAnalysisHadEt::fgPtAxis[117]=
  {0.0,0.01,0.02,0.03,0.04, 0.05, 0.06,0.07,0.08,0.09, 0.10,0.11, .12,0.13, .14,0.15, .16,0.17, .18,0.19,
   0.2, .22, .24, .26, .28, 0.30, 0.32, .34, .36, .38, 0.40, .42, .44, .46, .48,
   0.5, .52, .54, .56, .58, 0.60, 0.62, .64, .66, .68, 0.70, .72, .74, .76, .78,
   .80, .82, .84, .86, .88, 0.90, 0.92, .94, .96, .98, 1.00,1.05, 1.1,1.15, 1.2,
  1.25, 1.3,1.35,1.40,1.45, 1.50, 1.55, 1.6,1.65, 1.7, 1.75, 1.8,1.85, 1.9,1.95,
   2.0, 2.2, 2.4, 2.6, 2.8, 3.00, 3.20, 3.4, 3.6, 3.8, 4.00, 4.2, 4.4, 4.6, 4.8,
   5.0, 5.5, 6.0, 6.5, 7.0, 7.50, 8.00, 8.5, 9.0, 9.5, 10.0,12.0,14.0,16.0,18.0,
  20.0,25.0,30.0,35.0,40.0, 45.0, 50.0}; 


AliAnalysisHadEt::AliAnalysisHadEt() : AliAnalysisEtCommon()
				     ,fSumEt(0)
				     ,fSumEtAcc(0)
				     ,fTotEt(0)
				     ,fTotEtAcc(0)
				     ,fTotNeutralEt(0)
				     ,fTotNeutralEtAcc(0)
				     ,fTotChargedEt(0)
				     ,fTotChargedEtAcc(0)
				     ,fMultiplicity(0)
				     ,fChargedMultiplicity(0)
				     ,fNeutralMultiplicity(0)
				     ,fhistoList(0)
{//default constructor

}

AliAnalysisHadEt::~AliAnalysisHadEt()
{//destructor
  delete fEsdtrackCutsITSTPC;
  delete fEsdtrackCutsITS;
  delete fEsdtrackCutsTPC;
}

Int_t AliAnalysisHadEt::AnalyseEvent(AliVEvent *event)
{ //this line is basically here to eliminate a compiler warning that event is not used.  Making it a virtual function did not work with the plugin.
  AliAnalysisEtCommon::AnalyseEvent(event);
  ResetEventValues();
  return 0;
}


void AliAnalysisHadEt::Init()
{// clear variables, set up cuts and PDG info
  AliAnalysisEtCommon::Init();
}

void AliAnalysisHadEt::ResetEventValues()
{//Resets event values of et to zero
  AliAnalysisEtCommon::ResetEventValues();
  fTotEt = 0;
  fTotEtAcc = 0;
  fTotNeutralEt = 0;
  fTotNeutralEtAcc = 0;
  fTotChargedEt  = 0;
  fTotChargedEtAcc = 0;
  fMultiplicity = 0;
  fChargedMultiplicity = 0;
  fNeutralMultiplicity = 0;
  
}
void AliAnalysisHadEt::CreateEtaPtHisto2D(TString name, TString title)
{     //creates a 2-d histogram in eta and phi and adds it to the list of histograms to be saved
  TString *histoname   = new TString();
  TString *histotitle   = new TString();

  histoname->Append(name);
  histotitle->Append(title);

  TH2F *histo = new TH2F(histoname->Data(),histotitle->Data(),fgNumOfPtBins, fgPtAxis, fgnumOfEtaBins, fgEtaAxis);
  histo->SetYTitle("#eta");
  histo->SetXTitle("p_{T}");
  histo->SetZTitle("E_{T}");
  histo->Sumw2();
  fhistoList->Add(histo);
  delete histoname;
  delete histotitle;
    
}

void AliAnalysisHadEt::CreateHisto1D(TString name, TString title, TString xtitle, TString ytitle,Int_t xbins, Float_t xlow,Float_t xhigh)
{     //creates a 1d histogram of the given dimensions and adds it to the list of histograms to be saved
  TString *histoname   = new TString();
  TString *histotitle   = new TString();
  histoname->Append(name);
  histotitle->Append(title);
  TH1F *histo = new TH1F(histoname->Data(),histotitle->Data(),xbins,xlow,xhigh);
  histo->SetYTitle(ytitle);
  histo->SetXTitle(xtitle);
  histo->Sumw2();
  fhistoList->Add(histo);
  delete histoname;
  delete histotitle;
}
void AliAnalysisHadEt::CreateIntHisto1D(TString name, TString title, TString xtitle, TString ytitle,Int_t xbins, Int_t xlow,Int_t xhigh)
{     //creates a 1d integer histogram and adds it to the list of histograms to be saved
  TString *histoname   = new TString();
  TString *histotitle   = new TString();
  histoname->Append(name);
  histotitle->Append(title);
  TH1I *histo = new TH1I(histoname->Data(),histotitle->Data(),xbins,xlow,xhigh);
  histo->SetYTitle(ytitle);
  histo->SetXTitle(xtitle);
  histo->Sumw2();
  fhistoList->Add(histo);
  delete histoname;
  delete histotitle;
    
}
void AliAnalysisHadEt::CreateHisto2D(TString name, TString title, TString xtitle, TString ytitle,Int_t xbins, Float_t xlow,Float_t xhigh,Int_t ybins,Float_t ylow,Float_t yhigh)
{     //creates a 2d histogram and adds it to the list of histograms to be saved
  TString *histoname   = new TString();
  TString *histotitle   = new TString();
  histoname->Append(name);
  histotitle->Append(title);
  TH2F *histo = new TH2F(histoname->Data(),histotitle->Data(),xbins,xlow,xhigh,ybins,ylow,yhigh);
  histo->SetYTitle(ytitle);
  histo->SetXTitle(xtitle);
  histo->Sumw2();
  fhistoList->Add(histo);
  delete histoname;
  delete histotitle;
    
}
void AliAnalysisHadEt::CreateIntHisto2D(TString name, TString title, TString xtitle, TString ytitle,Int_t xbins, Int_t xlow,Int_t xhigh,Int_t ybins,Int_t ylow,Int_t yhigh)
{     //creates a 2-d integer histogram and adds it to the list of histograms to be saved
  TString *histoname   = new TString();
  TString *histotitle   = new TString();
  histoname->Append(name);
  histotitle->Append(title);
  TH2I *histo = new TH2I(histoname->Data(),histotitle->Data(),xbins,xlow,xhigh,ybins,ylow,yhigh);
  histo->SetYTitle(ytitle);
  histo->SetXTitle(xtitle);
  histo->Sumw2();
  fhistoList->Add(histo);
  delete histoname;
  delete histotitle;
    
}

void AliAnalysisHadEt::CreateEtaHisto1D(TString name, TString title)
{     //creates 1d histogram in eta and adds it to the list of histograms to be saved
  TString *histoname   = new TString();
  TString *histotitle   = new TString();
  histoname->Append(name);
  histotitle->Append(title);
  TH1F *histo = new TH1F(histoname->Data(),histotitle->Data(),fgnumOfEtaBins, fgEtaAxis);
  histo->SetYTitle("E_{T}");
  histo->SetXTitle("#eta");
  histo->Sumw2();
  fhistoList->Add(histo);
  delete histoname;
  delete histotitle;
}
void AliAnalysisHadEt::FillHisto1D(TString histname, Float_t x, Float_t weight)
{//fills a 1d histogram with the name histoname with the value x and the weight "weight"
  TH1F     *histo; 
  TString  *name   = new TString();
  name->Append(histname);       
  histo = (TH1F *)fhistoList->FindObject(name->Data()); 
  if(histo){
    histo->Fill((Double_t)x, weight);
  }
  else{cerr<<"CorrelationMaker::FillHisto1D: no histogram "<< name->Data()<<endl;}
  delete name;
}
void AliAnalysisHadEt::FillHisto2D(TString histname, Float_t x, Float_t y, Float_t weight)
{//fills a 2d histogram with the name histoname with the value x and the weight "weight"
  TH2F     *histo; 
  TString  *name   = new TString();
  name->Append(histname);       
  histo = (TH2F *)fhistoList->FindObject(name->Data()); 
  if(histo){
    histo->Fill((Double_t)x,(Double_t)y, weight);
  }
  else{cerr<<"CorrelationMaker::FillHisto2D: no histogram "<< name->Data()<<endl;}
  delete name;
}


Float_t AliAnalysisHadEt::Et(TParticle *part, float mass){//function to calculate et in the same way as it would be calculated in a calorimeter
  if(mass+1000<0.01){//if no mass given return default.  The default argument is -1000
    if(TMath::Abs(part->GetPDG(0)->PdgCode())==2212 || TMath::Abs(part->GetPDG(0)->PdgCode())==2112){
      if(part->GetPDG(0)->PdgCode()==-2212 || part->GetPDG(0)->PdgCode()==-2112){//antiproton or antineutron
	//for antinucleons we specifically want to return the kinetic energy plus twice the rest mass
	return (part->Energy()+part->GetMass())*TMath::Sin(part->Theta());
      }
      if(part->GetPDG(0)->PdgCode()==2212 || part->GetPDG(0)->PdgCode()==2112){//proton or neutron
	//for nucleons we specifically want to return the kinetic energy only
	return (part->Energy()-part->GetMass())*TMath::Sin(part->Theta());
      }
    }
    else{//otherwise go to the default
      return part->Energy()*TMath::Sin(part->Theta());
    }
  }
  else{//otherwise use the mass that was given
    return (TMath::Sqrt(TMath::Power(part->P(),2.0)+TMath::Power(mass,2.0)))*TMath::Sin(part->Theta());
  }
  return 0.0;
}
Float_t AliAnalysisHadEt::Et(Float_t p, Float_t theta, Int_t pid, Short_t charge) const {//function to calculate et in the same way as it would be calculated in a calorimeter
  if(pid==AliAnalysisEtCommon::fgPiPlusCode || pid==AliAnalysisEtCommon::fgPiMinusCode){//Nothing special for pions
    return TMath::Sqrt(p*p + fgPionMass*fgPionMass) * TMath::Sin(theta);
  }
  if(pid==AliAnalysisEtCommon::fgKPlusCode || pid==AliAnalysisEtCommon::fgKMinusCode){//Nothing special for kaons
    return TMath::Sqrt(p*p + AliAnalysisEtCommon::fgKaonMass*AliAnalysisEtCommon::fgKaonMass) * TMath::Sin(theta);
  }
  if(pid==AliAnalysisEtCommon::fgEPlusCode || pid==AliAnalysisEtCommon::fgEMinusCode){//Nothing special for electrons
    return TMath::Sqrt(p*p + AliAnalysisEtCommon::fgElectronMass*AliAnalysisEtCommon::fgElectronMass) * TMath::Sin(theta);
  }
  if(pid==AliAnalysisEtCommon::fgProtonCode || pid==AliAnalysisEtCommon::fgAntiProtonCode){//But for protons we must be careful...
    if(charge<0.0){//antiprotns: kinetic energy plus twice the rest mass
      return (TMath::Sqrt(p*p + AliAnalysisEtCommon::fgProtonMass*AliAnalysisEtCommon::fgProtonMass) + AliAnalysisEtCommon::fgProtonMass) * TMath::Sin(theta);
    }
    if(charge>0.0){//antiprotns: kinetic energy only
      return (TMath::Sqrt(p*p + AliAnalysisEtCommon::fgProtonMass*AliAnalysisEtCommon::fgProtonMass) - AliAnalysisEtCommon::fgProtonMass) * TMath::Sin(theta);
    }
  }
  cerr<<"Uh-oh!  Et not set properly!"<<endl;
  return 0.0;
}
Commit	Line	Data
cf6522d1	1	//Created by Christine Nattrass, Rebecca Scott, Irakli Martashvili
641e1e0c	2	//University of Tennessee at Knoxville
cf6522d1	3	//
	4	// This class is designed for the analysis of the hadronic component of
	5	// transverse energy. It is used by AliAnalysisTaskHadEt.
	6	// This gets information about the hadronic component of the transverse energy
	7	// from tracks reconstructed in an event
	8	// it has daughters, AliAnalysisHadEtMonteCarlo and
	9	// AliAnalysisHadEtReconstructed which loop over either Monte Carlo data or
	10	// real data to get Et
3ce6b879	11
641e1e0c	12	#include "AliAnalysisHadEt.h"
	13	#include "TMath.h"
	14	#include "TList.h"
	15	#include "TH1F.h"
	16	#include "TH2F.h"
	17	#include <iostream>
	18	#include "AliAnalysisEtCuts.h"
020abff0	19	#include "AliMCEvent.h"
641e1e0c	20	#include "AliVEvent.h"
020abff0	21	#include "AliStack.h"
	22	#include "AliESDtrackCuts.h"
	23	#include "TDatabasePDG.h"
	24	#include "TParticle.h"
	25	#include "Rtypes.h"
4b40b2b1	26	#include "AliPDG.h"
641e1e0c	27
	28	using namespace std;
	29
	30	ClassImp(AliAnalysisHadEt);
	31
	32
4b40b2b1	33	Int_t AliAnalysisHadEt::fgnumOfEtaBins = 16;
4b40b2b1	34	Float_t AliAnalysisHadEt::fgEtaAxis[17]={-0.78, -0.7, -0.58, -0.46, -0.34, -0.22, -0.12, -0.06, -0.0, 0.06, 0.12, 0.22, 0.34, 0.46, 0.58, 0.7, 0.78};
020abff0	35	Int_t AliAnalysisHadEt::fgNumOfPtBins = 111;
020abff0	36	Float_t AliAnalysisHadEt::fgPtAxis[117]=
641e1e0c	37	{0.0,0.01,0.02,0.03,0.04, 0.05, 0.06,0.07,0.08,0.09, 0.10,0.11, .12,0.13, .14,0.15, .16,0.17, .18,0.19,
	38	0.2, .22, .24, .26, .28, 0.30, 0.32, .34, .36, .38, 0.40, .42, .44, .46, .48,
	39	0.5, .52, .54, .56, .58, 0.60, 0.62, .64, .66, .68, 0.70, .72, .74, .76, .78,
	40	.80, .82, .84, .86, .88, 0.90, 0.92, .94, .96, .98, 1.00,1.05, 1.1,1.15, 1.2,
	41	1.25, 1.3,1.35,1.40,1.45, 1.50, 1.55, 1.6,1.65, 1.7, 1.75, 1.8,1.85, 1.9,1.95,
	42	2.0, 2.2, 2.4, 2.6, 2.8, 3.00, 3.20, 3.4, 3.6, 3.8, 4.00, 4.2, 4.4, 4.6, 4.8,
	43	5.0, 5.5, 6.0, 6.5, 7.0, 7.50, 8.00, 8.5, 9.0, 9.5, 10.0,12.0,14.0,16.0,18.0,
	44	20.0,25.0,30.0,35.0,40.0, 45.0, 50.0};
	45
d6214a64	46
7d2d1773	47	AliAnalysisHadEt::AliAnalysisHadEt() : AliAnalysisEtCommon()
7d2d1773	48	,fSumEt(0)
	49	,fSumEtAcc(0)
	50	,fTotEt(0)
	51	,fTotEtAcc(0)
	52	,fTotNeutralEt(0)
	53	,fTotNeutralEtAcc(0)
	54	,fTotChargedEt(0)
	55	,fTotChargedEtAcc(0)
	56	,fMultiplicity(0)
	57	,fChargedMultiplicity(0)
	58	,fNeutralMultiplicity(0)
	59	,fhistoList(0)
020abff0	60	{//default constructor
641e1e0c	61
	62	}
	63
	64	AliAnalysisHadEt::~AliAnalysisHadEt()
020abff0	65	{//destructor
951efd81	66	delete fEsdtrackCutsITSTPC;
	67	delete fEsdtrackCutsITS;
	68	delete fEsdtrackCutsTPC;
641e1e0c	69	}
	70
	71	Int_t AliAnalysisHadEt::AnalyseEvent(AliVEvent *event)
020abff0	72	{ //this line is basically here to eliminate a compiler warning that event is not used. Making it a virtual function did not work with the plugin.
7d2d1773	73	AliAnalysisEtCommon::AnalyseEvent(event);
0065531a	74	ResetEventValues();
641e1e0c	75	return 0;
	76	}
	77
641e1e0c	78
641e1e0c	79	void AliAnalysisHadEt::Init()
0065531a	80	{// clear variables, set up cuts and PDG info
7d2d1773	81	AliAnalysisEtCommon::Init();
641e1e0c	82	}
	83
	84	void AliAnalysisHadEt::ResetEventValues()
020abff0	85	{//Resets event values of et to zero
7d2d1773	86	AliAnalysisEtCommon::ResetEventValues();
0065531a	87	fTotEt = 0;
	88	fTotEtAcc = 0;
	89	fTotNeutralEt = 0;
	90	fTotNeutralEtAcc = 0;
	91	fTotChargedEt = 0;
	92	fTotChargedEtAcc = 0;
	93	fMultiplicity = 0;
	94	fChargedMultiplicity = 0;
	95	fNeutralMultiplicity = 0;
	96
4998becf	97	}
641e1e0c	98	void AliAnalysisHadEt::CreateEtaPtHisto2D(TString name, TString title)
020abff0	99	{ //creates a 2-d histogram in eta and phi and adds it to the list of histograms to be saved
641e1e0c	100	TString *histoname = new TString();
	101	TString *histotitle = new TString();
	102
	103	histoname->Append(name);
	104	histotitle->Append(title);
641e1e0c	105
020abff0	106	TH2F *histo = new TH2F(histoname->Data(),histotitle->Data(),fgNumOfPtBins, fgPtAxis, fgnumOfEtaBins, fgEtaAxis);
641e1e0c	107	histo->SetYTitle("#eta");
	108	histo->SetXTitle("p_{T}");
	109	histo->SetZTitle("E_{T}");
	110	histo->Sumw2();
020abff0	111	fhistoList->Add(histo);
641e1e0c	112	delete histoname;
	113	delete histotitle;
	114
	115	}
	116
	117	void AliAnalysisHadEt::CreateHisto1D(TString name, TString title, TString xtitle, TString ytitle,Int_t xbins, Float_t xlow,Float_t xhigh)
020abff0	118	{ //creates a 1d histogram of the given dimensions and adds it to the list of histograms to be saved
641e1e0c	119	TString *histoname = new TString();
641e1e0c	120	TString *histotitle = new TString();
641e1e0c	121	histoname->Append(name);
641e1e0c	122	histotitle->Append(title);
641e1e0c	123	TH1F *histo = new TH1F(histoname->Data(),histotitle->Data(),xbins,xlow,xhigh);
	124	histo->SetYTitle(ytitle);
	125	histo->SetXTitle(xtitle);
	126	histo->Sumw2();
020abff0	127	fhistoList->Add(histo);
641e1e0c	128	delete histoname;
641e1e0c	129	delete histotitle;
641e1e0c	130	}
641e1e0c	131	void AliAnalysisHadEt::CreateIntHisto1D(TString name, TString title, TString xtitle, TString ytitle,Int_t xbins, Int_t xlow,Int_t xhigh)
020abff0	132	{ //creates a 1d integer histogram and adds it to the list of histograms to be saved
641e1e0c	133	TString *histoname = new TString();
641e1e0c	134	TString *histotitle = new TString();
641e1e0c	135	histoname->Append(name);
641e1e0c	136	histotitle->Append(title);
641e1e0c	137	TH1I *histo = new TH1I(histoname->Data(),histotitle->Data(),xbins,xlow,xhigh);
	138	histo->SetYTitle(ytitle);
	139	histo->SetXTitle(xtitle);
	140	histo->Sumw2();
020abff0	141	fhistoList->Add(histo);
641e1e0c	142	delete histoname;
	143	delete histotitle;
	144
	145	}
	146	void AliAnalysisHadEt::CreateHisto2D(TString name, TString title, TString xtitle, TString ytitle,Int_t xbins, Float_t xlow,Float_t xhigh,Int_t ybins,Float_t ylow,Float_t yhigh)
020abff0	147	{ //creates a 2d histogram and adds it to the list of histograms to be saved
641e1e0c	148	TString *histoname = new TString();
641e1e0c	149	TString *histotitle = new TString();
641e1e0c	150	histoname->Append(name);
641e1e0c	151	histotitle->Append(title);
641e1e0c	152	TH2F *histo = new TH2F(histoname->Data(),histotitle->Data(),xbins,xlow,xhigh,ybins,ylow,yhigh);
	153	histo->SetYTitle(ytitle);
	154	histo->SetXTitle(xtitle);
	155	histo->Sumw2();
020abff0	156	fhistoList->Add(histo);
641e1e0c	157	delete histoname;
	158	delete histotitle;
	159
	160	}
	161	void AliAnalysisHadEt::CreateIntHisto2D(TString name, TString title, TString xtitle, TString ytitle,Int_t xbins, Int_t xlow,Int_t xhigh,Int_t ybins,Int_t ylow,Int_t yhigh)
020abff0	162	{ //creates a 2-d integer histogram and adds it to the list of histograms to be saved
641e1e0c	163	TString *histoname = new TString();
641e1e0c	164	TString *histotitle = new TString();
641e1e0c	165	histoname->Append(name);
641e1e0c	166	histotitle->Append(title);
641e1e0c	167	TH2I *histo = new TH2I(histoname->Data(),histotitle->Data(),xbins,xlow,xhigh,ybins,ylow,yhigh);
	168	histo->SetYTitle(ytitle);
	169	histo->SetXTitle(xtitle);
	170	histo->Sumw2();
020abff0	171	fhistoList->Add(histo);
641e1e0c	172	delete histoname;
	173	delete histotitle;
	174
	175	}
	176
	177	void AliAnalysisHadEt::CreateEtaHisto1D(TString name, TString title)
020abff0	178	{ //creates 1d histogram in eta and adds it to the list of histograms to be saved
641e1e0c	179	TString *histoname = new TString();
641e1e0c	180	TString *histotitle = new TString();
641e1e0c	181	histoname->Append(name);
641e1e0c	182	histotitle->Append(title);
020abff0	183	TH1F *histo = new TH1F(histoname->Data(),histotitle->Data(),fgnumOfEtaBins, fgEtaAxis);
641e1e0c	184	histo->SetYTitle("E_{T}");
	185	histo->SetXTitle("#eta");
	186	histo->Sumw2();
020abff0	187	fhistoList->Add(histo);
641e1e0c	188	delete histoname;
641e1e0c	189	delete histotitle;
641e1e0c	190	}
641e1e0c	191	void AliAnalysisHadEt::FillHisto1D(TString histname, Float_t x, Float_t weight)
020abff0	192	{//fills a 1d histogram with the name histoname with the value x and the weight "weight"
641e1e0c	193	TH1F *histo;
641e1e0c	194	TString *name = new TString();
641e1e0c	195	name->Append(histname);
020abff0	196	histo = (TH1F *)fhistoList->FindObject(name->Data());
641e1e0c	197	if(histo){
	198	histo->Fill((Double_t)x, weight);
	199	}
	200	else{cerr<<"CorrelationMaker::FillHisto1D: no histogram "<< name->Data()<<endl;}
	201	delete name;
	202	}
	203	void AliAnalysisHadEt::FillHisto2D(TString histname, Float_t x, Float_t y, Float_t weight)
020abff0	204	{//fills a 2d histogram with the name histoname with the value x and the weight "weight"
641e1e0c	205	TH2F *histo;
641e1e0c	206	TString *name = new TString();
641e1e0c	207	name->Append(histname);
020abff0	208	histo = (TH2F *)fhistoList->FindObject(name->Data());
641e1e0c	209	if(histo){
	210	histo->Fill((Double_t)x,(Double_t)y, weight);
	211	}
	212	else{cerr<<"CorrelationMaker::FillHisto2D: no histogram "<< name->Data()<<endl;}
	213	delete name;
	214	}
	215
	216
020abff0	217	Float_t AliAnalysisHadEt::Et(TParticle *part, float mass){//function to calculate et in the same way as it would be calculated in a calorimeter
020abff0	218	if(mass+1000<0.01){//if no mass given return default. The default argument is -1000
641e1e0c	219	if(TMath::Abs(part->GetPDG(0)->PdgCode())==2212 \|\| TMath::Abs(part->GetPDG(0)->PdgCode())==2112){
	220	if(part->GetPDG(0)->PdgCode()==-2212 \|\| part->GetPDG(0)->PdgCode()==-2112){//antiproton or antineutron
	221	//for antinucleons we specifically want to return the kinetic energy plus twice the rest mass
	222	return (part->Energy()+part->GetMass())*TMath::Sin(part->Theta());
	223	}
0e866ddc	224	if(part->GetPDG(0)->PdgCode()==2212 \|\| part->GetPDG(0)->PdgCode()==2112){//proton or neutron
641e1e0c	225	//for nucleons we specifically want to return the kinetic energy only
	226	return (part->Energy()-part->GetMass())*TMath::Sin(part->Theta());
	227	}
	228	}
	229	else{//otherwise go to the default
	230	return part->Energy()*TMath::Sin(part->Theta());
	231	}
	232	}
	233	else{//otherwise use the mass that was given
	234	return (TMath::Sqrt(TMath::Power(part->P(),2.0)+TMath::Power(mass,2.0)))*TMath::Sin(part->Theta());
	235	}
	236	return 0.0;
	237	}
464aa50c	238	Float_t AliAnalysisHadEt::Et(Float_t p, Float_t theta, Int_t pid, Short_t charge) const {//function to calculate et in the same way as it would be calculated in a calorimeter
7d2d1773	239	if(pid==AliAnalysisEtCommon::fgPiPlusCode \|\| pid==AliAnalysisEtCommon::fgPiMinusCode){//Nothing special for pions
4b40b2b1	240	return TMath::Sqrt(pp + fgPionMassfgPionMass) * TMath::Sin(theta);
3ce6b879	241	}
7d2d1773	242	if(pid==AliAnalysisEtCommon::fgKPlusCode \|\| pid==AliAnalysisEtCommon::fgKMinusCode){//Nothing special for kaons
7d2d1773	243	return TMath::Sqrt(pp + AliAnalysisEtCommon::fgKaonMassAliAnalysisEtCommon::fgKaonMass) * TMath::Sin(theta);
3ce6b879	244	}
7d2d1773	245	if(pid==AliAnalysisEtCommon::fgEPlusCode \|\| pid==AliAnalysisEtCommon::fgEMinusCode){//Nothing special for electrons
7d2d1773	246	return TMath::Sqrt(pp + AliAnalysisEtCommon::fgElectronMassAliAnalysisEtCommon::fgElectronMass) * TMath::Sin(theta);
3ce6b879	247	}
7d2d1773	248	if(pid==AliAnalysisEtCommon::fgProtonCode \|\| pid==AliAnalysisEtCommon::fgAntiProtonCode){//But for protons we must be careful...
3ce6b879	249	if(charge<0.0){//antiprotns: kinetic energy plus twice the rest mass
7d2d1773	250	return (TMath::Sqrt(pp + AliAnalysisEtCommon::fgProtonMassAliAnalysisEtCommon::fgProtonMass) + AliAnalysisEtCommon::fgProtonMass) * TMath::Sin(theta);
3ce6b879	251	}
3ce6b879	252	if(charge>0.0){//antiprotns: kinetic energy only
7d2d1773	253	return (TMath::Sqrt(pp + AliAnalysisEtCommon::fgProtonMassAliAnalysisEtCommon::fgProtonMass) - AliAnalysisEtCommon::fgProtonMass) * TMath::Sin(theta);
3ce6b879	254	}
	255	}
	256	cerr<<"Uh-oh! Et not set properly!"<<endl;
	257	return 0.0;
	258	}
7d2d1773	259