[u/mrichter/AliRoot.git] / PWG3 / vertexingHF / AliHFSystErr.cxx

/**************************************************************************
 * Copyright(c) 1998-2010, 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.                  *
 **************************************************************************/

/////////////////////////////////////////////////////////////
//
// Class to handle systematic errors for charm hadrons
//
// Usage:
// AliHFSystEff syst(DECAY); // DECAY = 1 for D0, 2, for D+, 3 for D* 
// syst.DrawErrors(); // to see a plot of the error contributions
// syst.GetTotalSystErr(pt); // to get the total err at pt 
//
// Author: A.Dainese, andrea.dainese@pd.infn.it
/////////////////////////////////////////////////////////////

#include <TStyle.h>
#include <TGraphAsymmErrors.h>
#include <TMath.h>
#include <TCanvas.h>
#include <TH2F.h>
#include <TLegend.h>
#include <TColor.h>

#include "AliHFSystErr.h"


ClassImp(AliHFSystErr)

//--------------------------------------------------------------------------
AliHFSystErr::AliHFSystErr(const Char_t* name, const Char_t* title) : 
TNamed(name,title),
fNorm(0),
fRawYield(0),
fTrackingEff(0),
fBR(0),
fCutsEff(0),
fPIDEff(0),
fMCPtShape(0),
fPartAntipart(0)
{
  //
  // Default Constructor
  //
}
//--------------------------------------------------------------------------
AliHFSystErr::AliHFSystErr(Int_t decay,const Char_t* name, const Char_t* title) : 
TNamed(name,title),
fNorm(0),
fRawYield(0),
fTrackingEff(0),
fBR(0),
fCutsEff(0),
fPIDEff(0),
fMCPtShape(0),
fPartAntipart(0)
{
  //
  // Standard Constructor
  //

  switch(decay) {
  case 1: // D0->Kpi
    InitD0toKpi();
    break;
  case 2: // D+->Kpipi
    InitDplustoKpipi();
    break;
  case 3: // D*->D0pi
    InitDstartoD0pi();
    break;
  default:
    printf("Invalid decay type: %d\n",decay);
    break;
  }


}
//--------------------------------------------------------------------------
AliHFSystErr::~AliHFSystErr() {
  //  
  // Default Destructor
  //

  if(fNorm)         { delete fNorm; fNorm=0; }
  if(fRawYield)     { delete fRawYield; fRawYield=0; }
  if(fTrackingEff)  { delete fTrackingEff; fTrackingEff=0; }
  if(fBR)           { delete fBR; fBR=0; }
  if(fCutsEff)      { delete fCutsEff; fCutsEff=0; }
  if(fPIDEff)       { delete fPIDEff; fPIDEff=0; }
  if(fMCPtShape)    { delete fMCPtShape; fMCPtShape=0; }
  if(fPartAntipart) { delete fPartAntipart; fPartAntipart=0; }

}
//--------------------------------------------------------------------------
void AliHFSystErr::InitD0toKpi() {
  // 
  // D0->Kpi syst errors. Responsible: A. Rossi
  //
  
  // Normalization
  fNorm = new TH1F("fNorm","fNorm",20,0,20);
  for(Int_t i=1;i<=20;i++) fNorm->SetBinContent(i,0.10); // 10% error on sigmaV0and

  // Branching ratio 
  fBR = new TH1F("fBR","fBR",20,0,20);
  for(Int_t i=1;i<=20;i++) fBR->SetBinContent(i,0.012); // 1.2% PDG2010

  // Tracking efficiency
  fTrackingEff = new TH1F("fTrackingEff","fTrackingEff",20,0,20);
  for(Int_t i=1;i<=20;i++) fTrackingEff->SetBinContent(i,0.02); // 2% (1% per track)

  // Raw yield extraction
  fRawYield = new TH1F("fRawYield","fRawYield",20,0,20);
  fRawYield->SetBinContent(1,1);
  fRawYield->SetBinContent(2,1);
  fRawYield->SetBinContent(3,0.15);
  for(Int_t i=4;i<=20;i++) fRawYield->SetBinContent(i,0.065);

  // Cuts efficiency (from cuts variation)
  fCutsEff = new TH1F("fCutsEff","fCutsEff",20,0,20);
  for(Int_t i=1;i<=20;i++) fCutsEff->SetBinContent(i,0.10); // 10%

  // PID efficiency (from PID/noPID)
  fPIDEff = new TH1F("fPIDEff","fPIDEff",20,0,20);
  for(Int_t i=1;i<=20;i++) fPIDEff->SetBinContent(i,0.03); // 3%
  fPIDEff->SetBinContent(4,0.10); // 10%

  // MC dN/dpt
  fMCPtShape = new TH1F("fMCPtShape","fMCPtShape",20,0,20);
  for(Int_t i=1;i<=20;i++) fMCPtShape->SetBinContent(i,(Float_t)i*0.006);

  // particle-antiparticle
  fPartAntipart = new TH1F("fPartAntipart","fPartAntipart",20,0,20);
  fPartAntipart->SetBinContent(1,1);
  fPartAntipart->SetBinContent(2,1);
  for(Int_t i=3;i<=6;i++) fPartAntipart->SetBinContent(i,0.08);
  
  return;
}
//--------------------------------------------------------------------------
void AliHFSystErr::InitDplustoKpipi() {
  // 
  // D+->Kpipi syst errors. Responsible: R. Bala
  //

 // Normalization
  fNorm = new TH1F("fNorm","fNorm",20,0,20);
  for(Int_t i=1;i<=20;i++) fNorm->SetBinContent(i,0.10); // 10% error on sigmaV0and

  // Branching ratio 
  fBR = new TH1F("fBR","fBR",20,0,20);
  for(Int_t i=1;i<=20;i++) fBR->SetBinContent(i,0.04); // 4% PDG2010

  // Tracking efficiency
  fTrackingEff = new TH1F("fTrackingEff","fTrackingEff",20,0,20);
  for(Int_t i=1;i<=20;i++) fTrackingEff->SetBinContent(i,0.03); // 3% (1% per track)


  // Raw yield extraction
  fRawYield = new TH1F("fRawYield","fRawYield",20,0,20);
  fRawYield->SetBinContent(1,1);
  fRawYield->SetBinContent(2,1);
  fRawYield->SetBinContent(3,0.20);
  for(Int_t i=4;i<=20;i++) fRawYield->SetBinContent(i,0.055);  //5 to 10%

  // Cuts efficiency (from cuts variation)
  fCutsEff = new TH1F("fCutsEff","fCutsEff",20,0,20);
  for(Int_t i=1;i<=20;i++) fCutsEff->SetBinContent(i,0.10); // 10%

  // PID efficiency (from PID/noPID)
  fPIDEff = new TH1F("fPIDEff","fPIDEff",20,0,20);
  for(Int_t i=1;i<=20;i++) fPIDEff->SetBinContent(i,0.05); // 5%
  fPIDEff->SetBinContent(3,0.13); // 13%
 

  // MC dN/dpt  (copied from D0 : will update later)
  fMCPtShape = new TH1F("fMCPtShape","fMCPtShape",20,0,20);
  for(Int_t i=1;i<=20;i++) fMCPtShape->SetBinContent(i,(Float_t)i*0.006);


  // particle-antiparticle
  /*
  fPartAntipart = new TH1F("fPartAntipart","fPartAntipart",20,0,20);
  fPartAntipart->SetBinContent(1,1);
  fPartAntipart->SetBinContent(2,1);
  fPartAntipart->SetBinContent(3,0.12);
  for(Int_t i=4;i<=20;i++) fPartAntipart->SetBinContent(i,0.05);   //5 to 12%
  */
  return;
}
//--------------------------------------------------------------------------
void AliHFSystErr::InitDstartoD0pi() {
  // 
  // D*+->D0pi syst errors. Responsible: A. Grelli, Y. Wang
  //

 // Normalization
  fNorm = new TH1F("fNorm","fNorm",20,0,20);
  for(Int_t i=1;i<=20;i++) fNorm->SetBinContent(i,0.10); // 10% error on sigmaV0and

  // Branching ratio 
  fBR = new TH1F("fBR","fBR",20,0,20);
  for(Int_t i=1;i<=20;i++) fBR->SetBinContent(i,0.07); // 7% PDG2010

  // Tracking efficiency
  fTrackingEff = new TH1F("fTrackingEff","fTrackingEff",20,0,20);
  fTrackingEff->SetBinContent(1,0.12);
  fTrackingEff->SetBinContent(2,0.08);
  fTrackingEff->SetBinContent(3,0.032);
  for(Int_t i=4;i<=20;i++) fTrackingEff->SetBinContent(i,0.03); // 3% (1% per track)


  // Raw yield extraction
  fRawYield = new TH1F("fRawYield","fRawYield",20,0,20);
  fRawYield->SetBinContent(1,0.19);
  fRawYield->SetBinContent(2,0.10);
  fRawYield->SetBinContent(3,0.10);
  fRawYield->SetBinContent(4,0.13);
  fRawYield->SetBinContent(5,0.09);
  for(Int_t i=5;i<=20;i++) fRawYield->SetBinContent(i,0.08);  //8%

  // Cuts efficiency (from cuts variation)
  fCutsEff = new TH1F("fCutsEff","fCutsEff",20,0,20);
  for(Int_t i=1;i<=20;i++) fCutsEff->SetBinContent(i,0.10); // 10%

  // PID efficiency (from PID/noPID)
  fPIDEff = new TH1F("fPIDEff","fPIDEff",20,0,20);
  for(Int_t i=1;i<=20;i++) fPIDEff->SetBinContent(i,0.03); // 3%
  fPIDEff->SetBinContent(4,0.10); // 10%
  fPIDEff->SetBinContent(5,0.06); // 6%
 

  // MC dN/dpt  (copied from D0 : will update later)
  fMCPtShape = new TH1F("fMCPtShape","fMCPtShape",20,0,20);
  for(Int_t i=1;i<=20;i++) fMCPtShape->SetBinContent(i,(Float_t)i*0.006);

  return;
}
//--------------------------------------------------------------------------
Double_t AliHFSystErr::GetCutsEffErr(Double_t pt) const {
  // 
  // Get error
  //

  Int_t bin=fCutsEff->FindBin(pt);

  return fCutsEff->GetBinContent(bin);
}
//--------------------------------------------------------------------------
Double_t AliHFSystErr::GetMCPtShapeErr(Double_t pt) const {
  // 
  // Get error
  //

  Int_t bin=fMCPtShape->FindBin(pt);

  return fMCPtShape->GetBinContent(bin);
}
//--------------------------------------------------------------------------
Double_t AliHFSystErr::GetSeleEffErr(Double_t pt) const {
  // 
  // Get error
  //

  Double_t err=GetCutsEffErr(pt)*GetCutsEffErr(pt)+GetMCPtShapeErr(pt)*GetMCPtShapeErr(pt);

  return TMath::Sqrt(err);
}
//--------------------------------------------------------------------------
Double_t AliHFSystErr::GetPIDEffErr(Double_t pt) const {
  // 
  // Get error
  //

  Int_t bin=fPIDEff->FindBin(pt);

  return fPIDEff->GetBinContent(bin);
}
//--------------------------------------------------------------------------
Double_t AliHFSystErr::GetTrackingEffErr(Double_t pt) const {
  // 
  // Get error
  //

  Int_t bin=fTrackingEff->FindBin(pt);

  return fTrackingEff->GetBinContent(bin);
}
//--------------------------------------------------------------------------
Double_t AliHFSystErr::GetRawYieldErr(Double_t pt) const {
  // 
  // Get error
  //

  Int_t bin=fRawYield->FindBin(pt);

  return fRawYield->GetBinContent(bin);
}
//--------------------------------------------------------------------------
Double_t AliHFSystErr::GetPartAntipartErr(Double_t pt) const {
  // 
  // Get error
  //

  Int_t bin=fPartAntipart->FindBin(pt);

  return fPartAntipart->GetBinContent(bin);
}
//--------------------------------------------------------------------------
Double_t AliHFSystErr::GetTotalSystErr(Double_t pt,Double_t feeddownErr) const {
  // 
  // Get total syst error (except norm. error)
  //

  Double_t err=0.;

  if(fRawYield) err += GetRawYieldErr(pt)*GetRawYieldErr(pt);
  if(fTrackingEff) err += GetTrackingEffErr(pt)*GetTrackingEffErr(pt);
  if(fBR) err += GetBRErr()*GetBRErr();
  if(fCutsEff) err += GetCutsEffErr(pt)*GetCutsEffErr(pt);
  if(fPIDEff) err += GetPIDEffErr(pt)*GetPIDEffErr(pt);
  if(fMCPtShape) err += GetMCPtShapeErr(pt)*GetMCPtShapeErr(pt);
  if(fPartAntipart) err += GetPartAntipartErr(pt)*GetPartAntipartErr(pt);

  err += feeddownErr*feeddownErr;

  return TMath::Sqrt(err);
}
//---------------------------------------------------------------------------
void AliHFSystErr::DrawErrors(TGraphAsymmErrors *grErrFeeddown) const {
  //
  // Draw errors
  //
  gStyle->SetOptStat(0);

  TCanvas *cSystErr = new TCanvas("cSystErr","Systematic Errors",300,80,640,500);
  cSystErr->Range(0.20,-0.5,18.4,0.34);
  cSystErr->SetRightMargin(0.318);
  cSystErr->SetFillColor(0);

  TH2F *hFrame = new TH2F("hFrame","Systematic errors; p_{t} [GeV/c]; Relative Error",20,0,20,100,-1,+1);
  hFrame->SetAxisRange(2.,11.9,"X");
  hFrame->SetAxisRange(-0.5,0.5,"Y");
  hFrame->Draw();

  TLegend *leg = new TLegend(0.69,0.44,0.98,0.86,NULL,"brNDC");
  leg->SetTextSize(0.03601695);
  leg->SetFillStyle(0);
  leg->SetBorderSize(0);
  
  TH1F *hTotErr=new TH1F("hTotErr","",20,0,20);
  Int_t nbins = fNorm->GetNbinsX();
  TGraphAsymmErrors *gTotErr = new TGraphAsymmErrors(nbins);
  for(Int_t i=1;i<=20;i++) {
    Double_t pt = hTotErr->GetBinCenter(i);
    Double_t ptwidth = hTotErr->GetBinWidth(i);

    if(grErrFeeddown) {
      Double_t x=0., y=0., errxl=0., errxh=0., erryl=0., erryh=0.;
      Double_t toterryl=0., toterryh=0.;
      for(Int_t j=0; j<grErrFeeddown->GetN(); j++) {
	grErrFeeddown->GetPoint(j,x,y);
	errxh = grErrFeeddown->GetErrorXhigh(j);
	errxl = grErrFeeddown->GetErrorXlow(j);
	if ( ( (x-errxl) <= pt) && ( (x+errxl) >= pt) ) {
	  erryh = grErrFeeddown->GetErrorYhigh(j);
	  erryl = grErrFeeddown->GetErrorYlow(j);
	}
      }
      if (erryl>=1e-3) toterryl = GetTotalSystErr(pt,erryl);
      else toterryl = GetTotalSystErr(pt);
      if (erryh>=1e-3) toterryh = GetTotalSystErr(pt,erryh);
      else toterryh = GetTotalSystErr(pt);

      hTotErr->SetBinContent(i,toterryh);
      gTotErr->SetPoint(i,pt,0.);
      gTotErr->SetPointError(i,ptwidth/2.,ptwidth/2.,toterryl,toterryh); // i, exl, exh, eyl, eyh
    }
    else {
      hTotErr->SetBinContent(i,GetTotalSystErr(pt));
      gTotErr->SetPoint(i,pt,0.);
      gTotErr->SetPointError(i,ptwidth/2.,ptwidth/2.,GetTotalSystErr(pt),GetTotalSystErr(pt)); // i, exl, exh, eyl, eyh
    }

  }
  gTotErr->SetLineColor(kBlack);
  gTotErr->SetFillColor(kRed);
  gTotErr->SetFillStyle(3002);
  gTotErr->Draw("2");
  leg->AddEntry(gTotErr,"Total (excl. norm.)","f");
//   hTotErr->SetLineColor(1);
//   hTotErr->SetLineWidth(3);
//   hTotErr->Draw("same");
//   leg->AddEntry(hTotErr,"Total (excl. norm.)","l");
  

  if(fNorm) {
    fNorm->SetFillColor(1);
    fNorm->SetFillStyle(3002);
    //fNorm->Draw("same");
    //TH1F *hNormRefl = ReflectHisto(fNorm);
    //hNormRefl->Draw("same");
    leg->AddEntry(fNorm,"Normalization (10%)","");
  }
  if(grErrFeeddown) {
    grErrFeeddown->SetFillColor(kTeal-8);
    grErrFeeddown->SetFillStyle(3001);
    grErrFeeddown->Draw("2");
    leg->AddEntry(grErrFeeddown,"Feed-down from B","f");
  }
  if(fTrackingEff) {
    fTrackingEff->SetFillColor(4);
    fTrackingEff->SetFillStyle(3006);
    fTrackingEff->Draw("same");
    TH1F *hTrackingEffRefl = ReflectHisto(fTrackingEff);
    hTrackingEffRefl->Draw("same");
    leg->AddEntry(fTrackingEff,"Tracking efficiency","f");
  }
  if(fBR) {
    fBR->SetFillColor(6);
    fBR->SetFillStyle(3005);
    //fBR->SetFillStyle(3020);
    fBR->Draw("same");
    TH1F *hBRRefl = ReflectHisto(fBR);
    hBRRefl->Draw("same");
    leg->AddEntry(fBR,"Branching ratio","f");
  }
  if(fRawYield) {
    Int_t ci;   // for color index setting
    ci = TColor::GetColor("#00cc00");
    fRawYield->SetLineColor(ci);
    //    fRawYield->SetLineColor(3);
    fRawYield->SetLineWidth(3);
    fRawYield->Draw("same");
    TH1F *hRawYieldRefl = ReflectHisto(fRawYield);
    hRawYieldRefl->Draw("same");
    leg->AddEntry(fRawYield,"Yield extraction","l");
  }
  if(fCutsEff) {
    fCutsEff->SetLineColor(4);
    fCutsEff->SetLineWidth(3);
    fCutsEff->Draw("same");
    TH1F *hCutsEffRefl = ReflectHisto(fCutsEff);
    hCutsEffRefl->Draw("same");
    leg->AddEntry(fCutsEff,"Cuts efficiency","l");
  }
  if(fPIDEff) {
    fPIDEff->SetLineColor(7);
    fPIDEff->SetLineWidth(3);
    fPIDEff->Draw("same");
    TH1F *hPIDEffRefl = ReflectHisto(fPIDEff);
    hPIDEffRefl->Draw("same");
    leg->AddEntry(fPIDEff,"PID efficiency","l");
  }
  if(fMCPtShape) {
    Int_t ci = TColor::GetColor("#9933ff");
    fMCPtShape->SetLineColor(ci);
    //    fMCPtShape->SetLineColor(8);
    fMCPtShape->SetLineWidth(3);
    fMCPtShape->Draw("same");
    TH1F *hMCPtShapeRefl = ReflectHisto(fMCPtShape);
    hMCPtShapeRefl->Draw("same");
    leg->AddEntry(fMCPtShape,"MC p_{t} shape","l");
  }
  if(fPartAntipart) {
    Int_t ci = TColor::GetColor("#ff6600");
    fPartAntipart->SetLineColor(ci);
    //    fPartAntipart->SetLineColor(9);
    fPartAntipart->SetLineWidth(3);
    fPartAntipart->Draw("same");
    TH1F *hPartAntipartRefl = ReflectHisto(fPartAntipart);
    hPartAntipartRefl->Draw("same");
    leg->AddEntry(fPartAntipart,"D = #bar{D}","l");
  }


  leg->Draw();

  cSystErr->SaveAs("RelativeSystematics.eps");

  return;
}
//-------------------------------------------------------------------------
TH1F* AliHFSystErr::ReflectHisto(TH1F *hin) const {
  //
  // Clones and reflects histogram 
  // 
  TH1F *hout=(TH1F*)hin->Clone("hout");
  hout->Scale(-1.);

  return hout;
}
Commit	Line	Data
0233abe6	1	/**************************************************************************
	2	* Copyright(c) 1998-2010, 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	//
	18	// Class to handle systematic errors for charm hadrons
	19	//
	20	// Usage:
	21	// AliHFSystEff syst(DECAY); // DECAY = 1 for D0, 2, for D+, 3 for D*
	22	// syst.DrawErrors(); // to see a plot of the error contributions
	23	// syst.GetTotalSystErr(pt); // to get the total err at pt
	24	//
	25	// Author: A.Dainese, andrea.dainese@pd.infn.it
	26	/////////////////////////////////////////////////////////////
	27
	28	#include <TStyle.h>
	29	#include <TGraphAsymmErrors.h>
	30	#include <TMath.h>
	31	#include <TCanvas.h>
	32	#include <TH2F.h>
	33	#include <TLegend.h>
5ad8ad40	34	#include <TColor.h>
0233abe6	35
	36	#include "AliHFSystErr.h"
	37
	38
	39	ClassImp(AliHFSystErr)
	40
	41	//--------------------------------------------------------------------------
	42	AliHFSystErr::AliHFSystErr(const Char_t* name, const Char_t* title) :
	43	TNamed(name,title),
	44	fNorm(0),
	45	fRawYield(0),
	46	fTrackingEff(0),
	47	fBR(0),
	48	fCutsEff(0),
	49	fPIDEff(0),
	50	fMCPtShape(0),
	51	fPartAntipart(0)
	52	{
	53	//
	54	// Default Constructor
	55	//
	56	}
	57	//--------------------------------------------------------------------------
	58	AliHFSystErr::AliHFSystErr(Int_t decay,const Char_t* name, const Char_t* title) :
	59	TNamed(name,title),
	60	fNorm(0),
	61	fRawYield(0),
	62	fTrackingEff(0),
	63	fBR(0),
	64	fCutsEff(0),
	65	fPIDEff(0),
	66	fMCPtShape(0),
	67	fPartAntipart(0)
	68	{
	69	//
	70	// Standard Constructor
	71	//
	72
	73	switch(decay) {
	74	case 1: // D0->Kpi
	75	InitD0toKpi();
	76	break;
	77	case 2: // D+->Kpipi
	78	InitDplustoKpipi();
	79	break;
	80	case 3: // D*->D0pi
	81	InitDstartoD0pi();
	82	break;
	83	default:
	84	printf("Invalid decay type: %d\n",decay);
	85	break;
	86	}
	87
	88
	89	}
	90	//--------------------------------------------------------------------------
	91	AliHFSystErr::~AliHFSystErr() {
	92	//
	93	// Default Destructor
	94	//
	95
	96	if(fNorm) { delete fNorm; fNorm=0; }
	97	if(fRawYield) { delete fRawYield; fRawYield=0; }
	98	if(fTrackingEff) { delete fTrackingEff; fTrackingEff=0; }
99	if(fBR) { delete fBR; fBR=0; }
100	if(fCutsEff) { delete fCutsEff; fCutsEff=0; }
101	if(fPIDEff) { delete fPIDEff; fPIDEff=0; }
102	if(fMCPtShape) { delete fMCPtShape; fMCPtShape=0; }
103	if(fPartAntipart) { delete fPartAntipart; fPartAntipart=0; }
104
105	}
106	//--------------------------------------------------------------------------
107	void AliHFSystErr::InitD0toKpi() {
108	//
109	// D0->Kpi syst errors. Responsible: A. Rossi
110	//
111
112	// Normalization
113	fNorm = new TH1F("fNorm","fNorm",20,0,20);
844405bc	114	for(Int_t i=1;i<=20;i++) fNorm->SetBinContent(i,0.10); // 10% error on sigmaV0and
0233abe6	115
	116	// Branching ratio
	117	fBR = new TH1F("fBR","fBR",20,0,20);
844405bc	118	for(Int_t i=1;i<=20;i++) fBR->SetBinContent(i,0.012); // 1.2% PDG2010
0233abe6	119
	120	// Tracking efficiency
	121	fTrackingEff = new TH1F("fTrackingEff","fTrackingEff",20,0,20);
844405bc	122	for(Int_t i=1;i<=20;i++) fTrackingEff->SetBinContent(i,0.02); // 2% (1% per track)
0233abe6	123
	124	// Raw yield extraction
	125	fRawYield = new TH1F("fRawYield","fRawYield",20,0,20);
	126	fRawYield->SetBinContent(1,1);
	127	fRawYield->SetBinContent(2,1);
	128	fRawYield->SetBinContent(3,0.15);
5ad8ad40	129	for(Int_t i=4;i<=20;i++) fRawYield->SetBinContent(i,0.065);
0233abe6	130
	131	// Cuts efficiency (from cuts variation)
	132	fCutsEff = new TH1F("fCutsEff","fCutsEff",20,0,20);
	133	for(Int_t i=1;i<=20;i++) fCutsEff->SetBinContent(i,0.10); // 10%
	134
	135	// PID efficiency (from PID/noPID)
	136	fPIDEff = new TH1F("fPIDEff","fPIDEff",20,0,20);
	137	for(Int_t i=1;i<=20;i++) fPIDEff->SetBinContent(i,0.03); // 3%
844405bc	138	fPIDEff->SetBinContent(4,0.10); // 10%
0233abe6	139
	140	// MC dN/dpt
	141	fMCPtShape = new TH1F("fMCPtShape","fMCPtShape",20,0,20);
	142	for(Int_t i=1;i<=20;i++) fMCPtShape->SetBinContent(i,(Float_t)i*0.006);
	143
	144	// particle-antiparticle
	145	fPartAntipart = new TH1F("fPartAntipart","fPartAntipart",20,0,20);
	146	fPartAntipart->SetBinContent(1,1);
	147	fPartAntipart->SetBinContent(2,1);
844405bc	148	for(Int_t i=3;i<=6;i++) fPartAntipart->SetBinContent(i,0.08);
0233abe6	149
	150	return;
	151	}
	152	//--------------------------------------------------------------------------
	153	void AliHFSystErr::InitDplustoKpipi() {
	154	//
	155	// D+->Kpipi syst errors. Responsible: R. Bala
	156	//
	157
626bcf57	158	// Normalization
626bcf57	159	fNorm = new TH1F("fNorm","fNorm",20,0,20);
844405bc	160	for(Int_t i=1;i<=20;i++) fNorm->SetBinContent(i,0.10); // 10% error on sigmaV0and
626bcf57	161
	162	// Branching ratio
	163	fBR = new TH1F("fBR","fBR",20,0,20);
844405bc	164	for(Int_t i=1;i<=20;i++) fBR->SetBinContent(i,0.04); // 4% PDG2010
626bcf57	165
	166	// Tracking efficiency
	167	fTrackingEff = new TH1F("fTrackingEff","fTrackingEff",20,0,20);
844405bc	168	for(Int_t i=1;i<=20;i++) fTrackingEff->SetBinContent(i,0.03); // 3% (1% per track)
626bcf57	169
	170
	171	// Raw yield extraction
	172	fRawYield = new TH1F("fRawYield","fRawYield",20,0,20);
	173	fRawYield->SetBinContent(1,1);
	174	fRawYield->SetBinContent(2,1);
5c73c2f5	175	fRawYield->SetBinContent(3,0.20);
5ad8ad40	176	for(Int_t i=4;i<=20;i++) fRawYield->SetBinContent(i,0.055); //5 to 10%
626bcf57	177
	178	// Cuts efficiency (from cuts variation)
	179	fCutsEff = new TH1F("fCutsEff","fCutsEff",20,0,20);
	180	for(Int_t i=1;i<=20;i++) fCutsEff->SetBinContent(i,0.10); // 10%
	181
	182	// PID efficiency (from PID/noPID)
	183	fPIDEff = new TH1F("fPIDEff","fPIDEff",20,0,20);
	184	for(Int_t i=1;i<=20;i++) fPIDEff->SetBinContent(i,0.05); // 5%
	185	fPIDEff->SetBinContent(3,0.13); // 13%
	186
	187
	188	// MC dN/dpt (copied from D0 : will update later)
	189	fMCPtShape = new TH1F("fMCPtShape","fMCPtShape",20,0,20);
	190	for(Int_t i=1;i<=20;i++) fMCPtShape->SetBinContent(i,(Float_t)i*0.006);
	191
	192
	193	// particle-antiparticle
	194	/*
	195	fPartAntipart = new TH1F("fPartAntipart","fPartAntipart",20,0,20);
	196	fPartAntipart->SetBinContent(1,1);
	197	fPartAntipart->SetBinContent(2,1);
	198	fPartAntipart->SetBinContent(3,0.12);
	199	for(Int_t i=4;i<=20;i++) fPartAntipart->SetBinContent(i,0.05); //5 to 12%
	200	*/
0233abe6	201	return;
	202	}
	203	//--------------------------------------------------------------------------
	204	void AliHFSystErr::InitDstartoD0pi() {
	205	//
2cf98d0d	206	// D*+->D0pi syst errors. Responsible: A. Grelli, Y. Wang
0233abe6	207	//
0233abe6	208
2cf98d0d	209	// Normalization
	210	fNorm = new TH1F("fNorm","fNorm",20,0,20);
	211	for(Int_t i=1;i<=20;i++) fNorm->SetBinContent(i,0.10); // 10% error on sigmaV0and
	212
	213	// Branching ratio
	214	fBR = new TH1F("fBR","fBR",20,0,20);
	215	for(Int_t i=1;i<=20;i++) fBR->SetBinContent(i,0.07); // 7% PDG2010
	216
	217	// Tracking efficiency
	218	fTrackingEff = new TH1F("fTrackingEff","fTrackingEff",20,0,20);
	219	fTrackingEff->SetBinContent(1,0.12);
	220	fTrackingEff->SetBinContent(2,0.08);
	221	fTrackingEff->SetBinContent(3,0.032);
	222	for(Int_t i=4;i<=20;i++) fTrackingEff->SetBinContent(i,0.03); // 3% (1% per track)
	223
	224
	225	// Raw yield extraction
	226	fRawYield = new TH1F("fRawYield","fRawYield",20,0,20);
	227	fRawYield->SetBinContent(1,0.19);
	228	fRawYield->SetBinContent(2,0.10);
	229	fRawYield->SetBinContent(3,0.10);
	230	fRawYield->SetBinContent(4,0.13);
	231	fRawYield->SetBinContent(5,0.09);
	232	for(Int_t i=5;i<=20;i++) fRawYield->SetBinContent(i,0.08); //8%
	233
	234	// Cuts efficiency (from cuts variation)
	235	fCutsEff = new TH1F("fCutsEff","fCutsEff",20,0,20);
	236	for(Int_t i=1;i<=20;i++) fCutsEff->SetBinContent(i,0.10); // 10%
	237
	238	// PID efficiency (from PID/noPID)
	239	fPIDEff = new TH1F("fPIDEff","fPIDEff",20,0,20);
	240	for(Int_t i=1;i<=20;i++) fPIDEff->SetBinContent(i,0.03); // 3%
	241	fPIDEff->SetBinContent(4,0.10); // 10%
	242	fPIDEff->SetBinContent(5,0.06); // 6%
	243
	244
	245	// MC dN/dpt (copied from D0 : will update later)
	246	fMCPtShape = new TH1F("fMCPtShape","fMCPtShape",20,0,20);
	247	for(Int_t i=1;i<=20;i++) fMCPtShape->SetBinContent(i,(Float_t)i*0.006);
	248
0233abe6	249	return;
	250	}
	251	//--------------------------------------------------------------------------
	252	Double_t AliHFSystErr::GetCutsEffErr(Double_t pt) const {
	253	//
	254	// Get error
	255	//
	256
	257	Int_t bin=fCutsEff->FindBin(pt);
	258
	259	return fCutsEff->GetBinContent(bin);
	260	}
	261	//--------------------------------------------------------------------------
	262	Double_t AliHFSystErr::GetMCPtShapeErr(Double_t pt) const {
	263	//
	264	// Get error
	265	//
	266
	267	Int_t bin=fMCPtShape->FindBin(pt);
	268
	269	return fMCPtShape->GetBinContent(bin);
	270	}
	271	//--------------------------------------------------------------------------
	272	Double_t AliHFSystErr::GetSeleEffErr(Double_t pt) const {
	273	//
	274	// Get error
	275	//
	276
	277	Double_t err=GetCutsEffErr(pt)GetCutsEffErr(pt)+GetMCPtShapeErr(pt)GetMCPtShapeErr(pt);
	278
	279	return TMath::Sqrt(err);
	280	}
	281	//--------------------------------------------------------------------------
	282	Double_t AliHFSystErr::GetPIDEffErr(Double_t pt) const {
	283	//
	284	// Get error
	285	//
	286
	287	Int_t bin=fPIDEff->FindBin(pt);
	288
	289	return fPIDEff->GetBinContent(bin);
	290	}
	291	//--------------------------------------------------------------------------
	292	Double_t AliHFSystErr::GetTrackingEffErr(Double_t pt) const {
	293	//
	294	// Get error
	295	//
	296
	297	Int_t bin=fTrackingEff->FindBin(pt);
	298
	299	return fTrackingEff->GetBinContent(bin);
	300	}
	301	//--------------------------------------------------------------------------
	302	Double_t AliHFSystErr::GetRawYieldErr(Double_t pt) const {
	303	//
	304	// Get error
	305	//
	306
	307	Int_t bin=fRawYield->FindBin(pt);
	308
	309	return fRawYield->GetBinContent(bin);
	310	}
	311	//--------------------------------------------------------------------------
	312	Double_t AliHFSystErr::GetPartAntipartErr(Double_t pt) const {
313	//
314	// Get error
315	//
316
317	Int_t bin=fPartAntipart->FindBin(pt);
318
319	return fPartAntipart->GetBinContent(bin);
320	}
321	//--------------------------------------------------------------------------
322	Double_t AliHFSystErr::GetTotalSystErr(Double_t pt,Double_t feeddownErr) const {
323	//
324	// Get total syst error (except norm. error)
325	//
326
327	Double_t err=0.;
328
329	if(fRawYield) err += GetRawYieldErr(pt)*GetRawYieldErr(pt);
330	if(fTrackingEff) err += GetTrackingEffErr(pt)*GetTrackingEffErr(pt);
331	if(fBR) err += GetBRErr()*GetBRErr();
332	if(fCutsEff) err += GetCutsEffErr(pt)*GetCutsEffErr(pt);
333	if(fPIDEff) err += GetPIDEffErr(pt)*GetPIDEffErr(pt);
334	if(fMCPtShape) err += GetMCPtShapeErr(pt)*GetMCPtShapeErr(pt);
335	if(fPartAntipart) err += GetPartAntipartErr(pt)*GetPartAntipartErr(pt);
336
337	err += feeddownErr*feeddownErr;
338
339	return TMath::Sqrt(err);
340	}
341	//---------------------------------------------------------------------------
5ad8ad40	342	void AliHFSystErr::DrawErrors(TGraphAsymmErrors *grErrFeeddown) const {
0233abe6	343	//
	344	// Draw errors
	345	//
	346	gStyle->SetOptStat(0);
	347
a07118d0	348	TCanvas *cSystErr = new TCanvas("cSystErr","Systematic Errors",300,80,640,500);
	349	cSystErr->Range(0.20,-0.5,18.4,0.34);
	350	cSystErr->SetRightMargin(0.318);
0233abe6	351	cSystErr->SetFillColor(0);
0233abe6	352
2ee3afe2	353	TH2F *hFrame = new TH2F("hFrame","Systematic errors; p_{t} [GeV/c]; Relative Error",20,0,20,100,-1,+1);
5ad8ad40	354	hFrame->SetAxisRange(2.,11.9,"X");
a07118d0	355	hFrame->SetAxisRange(-0.5,0.5,"Y");
0233abe6	356	hFrame->Draw();
0233abe6	357
a07118d0	358	TLegend *leg = new TLegend(0.69,0.44,0.98,0.86,NULL,"brNDC");
a07118d0	359	leg->SetTextSize(0.03601695);
0233abe6	360	leg->SetFillStyle(0);
0233abe6	361	leg->SetBorderSize(0);
2ee3afe2	362
	363	TH1F *hTotErr=new TH1F("hTotErr","",20,0,20);
	364	Int_t nbins = fNorm->GetNbinsX();
	365	TGraphAsymmErrors *gTotErr = new TGraphAsymmErrors(nbins);
	366	for(Int_t i=1;i<=20;i++) {
	367	Double_t pt = hTotErr->GetBinCenter(i);
	368	Double_t ptwidth = hTotErr->GetBinWidth(i);
	369
	370	if(grErrFeeddown) {
	371	Double_t x=0., y=0., errxl=0., errxh=0., erryl=0., erryh=0.;
	372	Double_t toterryl=0., toterryh=0.;
	373	for(Int_t j=0; j<grErrFeeddown->GetN(); j++) {
	374	grErrFeeddown->GetPoint(j,x,y);
	375	errxh = grErrFeeddown->GetErrorXhigh(j);
	376	errxl = grErrFeeddown->GetErrorXlow(j);
a07118d0	377	if ( ( (x-errxl) <= pt) && ( (x+errxl) >= pt) ) {
2ee3afe2	378	erryh = grErrFeeddown->GetErrorYhigh(j);
	379	erryl = grErrFeeddown->GetErrorYlow(j);
	380	}
	381	}
	382	if (erryl>=1e-3) toterryl = GetTotalSystErr(pt,erryl);
	383	else toterryl = GetTotalSystErr(pt);
	384	if (erryh>=1e-3) toterryh = GetTotalSystErr(pt,erryh);
	385	else toterryh = GetTotalSystErr(pt);
	386
	387	hTotErr->SetBinContent(i,toterryh);
	388	gTotErr->SetPoint(i,pt,0.);
	389	gTotErr->SetPointError(i,ptwidth/2.,ptwidth/2.,toterryl,toterryh); // i, exl, exh, eyl, eyh
	390	}
	391	else {
	392	hTotErr->SetBinContent(i,GetTotalSystErr(pt));
	393	gTotErr->SetPoint(i,pt,0.);
	394	gTotErr->SetPointError(i,ptwidth/2.,ptwidth/2.,GetTotalSystErr(pt),GetTotalSystErr(pt)); // i, exl, exh, eyl, eyh
	395	}
	396
	397	}
f968ef30	398	gTotErr->SetLineColor(kBlack);
	399	gTotErr->SetFillColor(kRed);
	400	gTotErr->SetFillStyle(3002);
2ee3afe2	401	gTotErr->Draw("2");
	402	leg->AddEntry(gTotErr,"Total (excl. norm.)","f");
	403	// hTotErr->SetLineColor(1);
	404	// hTotErr->SetLineWidth(3);
	405	// hTotErr->Draw("same");
	406	// leg->AddEntry(hTotErr,"Total (excl. norm.)","l");
	407
0233abe6	408
	409	if(fNorm) {
	410	fNorm->SetFillColor(1);
5ad8ad40	411	fNorm->SetFillStyle(3002);
844405bc	412	//fNorm->Draw("same");
	413	//TH1F *hNormRefl = ReflectHisto(fNorm);
	414	//hNormRefl->Draw("same");
	415	leg->AddEntry(fNorm,"Normalization (10%)","");
0233abe6	416	}
5ad8ad40	417	if(grErrFeeddown) {
	418	grErrFeeddown->SetFillColor(kTeal-8);
	419	grErrFeeddown->SetFillStyle(3001);
	420	grErrFeeddown->Draw("2");
	421	leg->AddEntry(grErrFeeddown,"Feed-down from B","f");
	422	}
0233abe6	423	if(fTrackingEff) {
5ad8ad40	424	fTrackingEff->SetFillColor(4);
5ad8ad40	425	fTrackingEff->SetFillStyle(3006);
0233abe6	426	fTrackingEff->Draw("same");
f968ef30	427	TH1F *hTrackingEffRefl = ReflectHisto(fTrackingEff);
f968ef30	428	hTrackingEffRefl->Draw("same");
0233abe6	429	leg->AddEntry(fTrackingEff,"Tracking efficiency","f");
	430	}
	431	if(fBR) {
	432	fBR->SetFillColor(6);
	433	fBR->SetFillStyle(3005);
5ad8ad40	434	//fBR->SetFillStyle(3020);
0233abe6	435	fBR->Draw("same");
f968ef30	436	TH1F *hBRRefl = ReflectHisto(fBR);
f968ef30	437	hBRRefl->Draw("same");
0233abe6	438	leg->AddEntry(fBR,"Branching ratio","f");
	439	}
	440	if(fRawYield) {
5ad8ad40	441	Int_t ci; // for color index setting
	442	ci = TColor::GetColor("#00cc00");
	443	fRawYield->SetLineColor(ci);
	444	// fRawYield->SetLineColor(3);
0233abe6	445	fRawYield->SetLineWidth(3);
0233abe6	446	fRawYield->Draw("same");
f968ef30	447	TH1F *hRawYieldRefl = ReflectHisto(fRawYield);
f968ef30	448	hRawYieldRefl->Draw("same");
844405bc	449	leg->AddEntry(fRawYield,"Yield extraction","l");
0233abe6	450	}
	451	if(fCutsEff) {
	452	fCutsEff->SetLineColor(4);
	453	fCutsEff->SetLineWidth(3);
	454	fCutsEff->Draw("same");
f968ef30	455	TH1F *hCutsEffRefl = ReflectHisto(fCutsEff);
f968ef30	456	hCutsEffRefl->Draw("same");
0233abe6	457	leg->AddEntry(fCutsEff,"Cuts efficiency","l");
	458	}
	459	if(fPIDEff) {
	460	fPIDEff->SetLineColor(7);
	461	fPIDEff->SetLineWidth(3);
	462	fPIDEff->Draw("same");
f968ef30	463	TH1F *hPIDEffRefl = ReflectHisto(fPIDEff);
f968ef30	464	hPIDEffRefl->Draw("same");
0233abe6	465	leg->AddEntry(fPIDEff,"PID efficiency","l");
	466	}
	467	if(fMCPtShape) {
5ad8ad40	468	Int_t ci = TColor::GetColor("#9933ff");
	469	fMCPtShape->SetLineColor(ci);
	470	// fMCPtShape->SetLineColor(8);
0233abe6	471	fMCPtShape->SetLineWidth(3);
0233abe6	472	fMCPtShape->Draw("same");
f968ef30	473	TH1F *hMCPtShapeRefl = ReflectHisto(fMCPtShape);
f968ef30	474	hMCPtShapeRefl->Draw("same");
0233abe6	475	leg->AddEntry(fMCPtShape,"MC p_{t} shape","l");
	476	}
	477	if(fPartAntipart) {
5ad8ad40	478	Int_t ci = TColor::GetColor("#ff6600");
	479	fPartAntipart->SetLineColor(ci);
	480	// fPartAntipart->SetLineColor(9);
0233abe6	481	fPartAntipart->SetLineWidth(3);
0233abe6	482	fPartAntipart->Draw("same");
f968ef30	483	TH1F *hPartAntipartRefl = ReflectHisto(fPartAntipart);
f968ef30	484	hPartAntipartRefl->Draw("same");
0233abe6	485	leg->AddEntry(fPartAntipart,"D = #bar{D}","l");
0233abe6	486	}
0233abe6	487
0233abe6	488
	489	leg->Draw();
	490
5ad8ad40	491	cSystErr->SaveAs("RelativeSystematics.eps");
5ad8ad40	492
0233abe6	493	return;
0233abe6	494	}
f968ef30	495	//-------------------------------------------------------------------------
	496	TH1F* AliHFSystErr::ReflectHisto(TH1F *hin) const {
	497	//
	498	// Clones and reflects histogram
	499	//
	500	TH1F hout=(TH1F)hin->Clone("hout");
	501	hout->Scale(-1.);
	502
	503	return hout;
	504	}