#define AliFlowAnalysisWithScalarProduct_cxx
-#include "Riostream.h" //needed as include
-#include "TFile.h" //needed as include
+#include "Riostream.h"
+#include "TFile.h"
#include "TList.h"
#include "TMath.h"
#include "TProfile.h"
#include "TVector2.h"
+#include "TH1D.h"
+#include "TH2D.h"
-class TH1F;
-
-#include "AliFlowCommonConstants.h" //needed as include
+#include "AliFlowCommonConstants.h"
#include "AliFlowEventSimple.h"
#include "AliFlowTrackSimple.h"
#include "AliFlowCommonHist.h"
#include "AliFlowCommonHistResults.h"
#include "AliFlowAnalysisWithScalarProduct.h"
-
-class AliFlowVector;
+#include "AliFlowVector.h"
//////////////////////////////////////////////////////////////////////////////
// AliFlowAnalysisWithScalarProduct:
AliFlowAnalysisWithScalarProduct::AliFlowAnalysisWithScalarProduct():
fEventNumber(0),
fDebug(kFALSE),
+ fRelDiffMsub(1.),
fWeightsList(NULL),
fUsePhiWeights(kFALSE),
fPhiWeights(NULL),
fHistProUQPtRP(NULL),
fHistProUQPtPOI(NULL),
fHistProQaQb(NULL),
+ fHistProQaQbNorm(NULL),
fHistSumOfLinearWeights(NULL),
fHistSumOfQuadraticWeights(NULL),
fHistProUQQaQbPtRP(NULL),
fHistProUQQaQbPtPOI(NULL),
fHistProUQQaQbEtaPOI(NULL),
fCommonHists(NULL),
- fCommonHistsRes(NULL)
+ fCommonHistsRes(NULL),
+ fHistQaQb(NULL),
+ fHistQaQbNorm(NULL),
+ fHistQaQbCos(NULL),
+ fHistResolution(NULL),
+ fHistQaNorm(NULL),
+ fHistQaNormvsMa(NULL),
+ fHistQbNorm(NULL),
+ fHistQbNormvsMb(NULL),
+ fHistMavsMb(NULL)
+
{
// Constructor.
fWeightsList = new TList();
//Define all histograms
cout<<"---Analysis with the Scalar Product Method--- Init"<<endl;
+ //save old value and prevent histograms from being added to directory
+ //to avoid name clashes in case multiple analaysis objects are used
+ //in an analysis
+ Bool_t oldHistAddStatus = TH1::AddDirectoryStatus();
+ TH1::AddDirectory(kFALSE);
+
Int_t iNbinsPt = AliFlowCommonConstants::GetMaster()->GetNbinsPt();
Double_t dPtMin = AliFlowCommonConstants::GetMaster()->GetPtMin();
Double_t dPtMax = AliFlowCommonConstants::GetMaster()->GetPtMax();
fHistProQaQb->SetYTitle("<QaQb>");
fHistList->Add(fHistProQaQb);
+ fHistProQaQbNorm = new TProfile("FlowPro_QaQbNorm_SP","FlowPro_QaQbNorm_SP", 1, 0.5, 1.5,"s");
+ fHistProQaQbNorm->SetYTitle("<QaQb/MaMb>");
+ fHistList->Add(fHistProQaQbNorm);
+
fHistSumOfLinearWeights = new TH1D("Flow_SumOfLinearWeights_SP","Flow_SumOfLinearWeights_SP",1,-0.5, 0.5);
fHistSumOfLinearWeights -> SetYTitle("sum (*)");
fHistSumOfLinearWeights -> SetXTitle("sum (Ma*Mb)");
TString weightFlag[3] = {"w_Qu_","w_Qu^2_","w_QuQaQb_"};
for(Int_t i=0;i<3;i++)
{
- fHistSumOfWeightsPtRP[i] = new TH1D(Form("Flow_SumOfWeights%dPtRP_SP",weightFlag[i].Data()),
- Form("Flow_SumOfWeights%dPtRP_SP",weightFlag[i].Data()),iNbinsPt,dPtMin,dPtMax);
+ fHistSumOfWeightsPtRP[i] = new TH1D(Form("Flow_SumOfWeights%sPtRP_SP",weightFlag[i].Data()),
+ Form("Flow_SumOfWeights%sPtRP_SP",weightFlag[i].Data()),iNbinsPt,dPtMin,dPtMax);
fHistSumOfWeightsPtRP[i] -> SetYTitle("sum (*)");
fHistSumOfWeightsPtRP[i] -> SetXTitle("p_{T}");
fHistList->Add(fHistSumOfWeightsPtRP[i]);
- fHistSumOfWeightsEtaRP[i] = new TH1D(Form("Flow_SumOfWeights%dEtaRP_SP",weightFlag[i].Data()),
- Form("Flow_SumOfWeights%dEtaRP_SP",weightFlag[i].Data()),iNbinsEta,dEtaMin,dEtaMax);
+ fHistSumOfWeightsEtaRP[i] = new TH1D(Form("Flow_SumOfWeights%sEtaRP_SP",weightFlag[i].Data()),
+ Form("Flow_SumOfWeights%sEtaRP_SP",weightFlag[i].Data()),iNbinsEta,dEtaMin,dEtaMax);
fHistSumOfWeightsEtaRP[i] -> SetYTitle("sum (*)");
fHistSumOfWeightsEtaRP[i] -> SetXTitle("#eta");
fHistList->Add(fHistSumOfWeightsEtaRP[i]);
- fHistSumOfWeightsPtPOI[i] = new TH1D(Form("Flow_SumOfWeights%dPtPOI_SP",weightFlag[i].Data()),
- Form("Flow_SumOfWeights%dPtPOI_SP",weightFlag[i].Data()),iNbinsPt,dPtMin,dPtMax);
+ fHistSumOfWeightsPtPOI[i] = new TH1D(Form("Flow_SumOfWeights%sPtPOI_SP",weightFlag[i].Data()),
+ Form("Flow_SumOfWeights%sPtPOI_SP",weightFlag[i].Data()),iNbinsPt,dPtMin,dPtMax);
fHistSumOfWeightsPtPOI[i] -> SetYTitle("sum (*)");
fHistSumOfWeightsPtPOI[i] -> SetXTitle("p_{T}");
fHistList->Add(fHistSumOfWeightsPtPOI[i]);
- fHistSumOfWeightsEtaPOI[i] = new TH1D(Form("Flow_SumOfWeights%dEtaPOI_SP",weightFlag[i].Data()),
- Form("Flow_SumOfWeights%dEtaPOI_SP",weightFlag[i].Data()),iNbinsEta,dEtaMin,dEtaMax);
+ fHistSumOfWeightsEtaPOI[i] = new TH1D(Form("Flow_SumOfWeights%sEtaPOI_SP",weightFlag[i].Data()),
+ Form("Flow_SumOfWeights%sEtaPOI_SP",weightFlag[i].Data()),iNbinsEta,dEtaMin,dEtaMax);
fHistSumOfWeightsEtaPOI[i] -> SetYTitle("sum (*)");
fHistSumOfWeightsEtaPOI[i] -> SetXTitle("#eta");
fHistList->Add(fHistSumOfWeightsEtaPOI[i]);
fCommonHistsRes = new AliFlowCommonHistResults("AliFlowCommonHistResultsSP");
fHistList->Add(fCommonHistsRes);
+ fHistQaQb = new TH1D("Flow_QaQb_SP","Flow_QaQb_SP",200,-100.,100.);
+ fHistQaQb -> SetYTitle("dN/dQaQb");
+ fHistQaQb -> SetXTitle("QaQb");
+ fHistList->Add(fHistQaQb);
+
+ fHistQaQbNorm = new TH1D("Flow_QaQbNorm_SP","Flow_QaQbNorm_SP",44,-1.1,1.1);
+ fHistQaQbNorm -> SetYTitle("dN/d(QaQb/MaMb)");
+ fHistQaQbNorm -> SetXTitle("QaQb/MaMb");
+ fHistList->Add(fHistQaQbNorm);
+
+ fHistQaQbCos = new TH1D("Flow_QaQbCos_SP","Flow_QaQbCos_SP",63,0.,TMath::Pi());
+ fHistQaQbCos -> SetYTitle("dN/d(#phi)");
+ fHistQaQbCos -> SetXTitle("#phi");
+ fHistList->Add(fHistQaQbCos);
+
+ fHistResolution = new TH1D("Flow_resolution_SP","Flow_resolution_SP",100,-1.0,1.0);
+ fHistResolution -> SetYTitle("dN/d(cos(2(#phi_a - #phi_b))");
+ fHistResolution -> SetXTitle("cos(2*(#phi_a - #phi_b))");
+ fHistList->Add(fHistResolution);
+
+ fHistQaNorm = new TH1D("Flow_QaNorm_SP","Flow_QaNorm_SP",22,0.,1.1);
+ fHistQaNorm -> SetYTitle("dN/d(|Qa/Ma|)");
+ fHistQaNorm -> SetXTitle("|Qa/Ma|");
+ fHistList->Add(fHistQaNorm);
+
+ fHistQaNormvsMa = new TH2D("Flow_QaNormvsMa_SP","Flow_QaNormvsMa_SP",100,0.,100.,22,0.,1.1);
+ fHistQaNormvsMa -> SetYTitle("|Qa/Ma|");
+ fHistQaNormvsMa -> SetXTitle("Ma");
+ fHistList->Add(fHistQaNormvsMa);
+
+ fHistQbNorm = new TH1D("Flow_QbNorm_SP","Flow_QbNorm_SP",22,0.,1.1);
+ fHistQbNorm -> SetYTitle("dN/d(|Qb/Mb|)");
+ fHistQbNorm -> SetXTitle("|Qb/Mb|");
+ fHistList->Add(fHistQbNorm);
+
+ fHistQbNormvsMb = new TH2D("Flow_QbNormvsMb_SP","Flow_QbNormvsMb_SP",100,0.,100.,22,0.,1.1);
+ fHistQbNormvsMb -> SetYTitle("|Qb/Mb|");
+ fHistQbNormvsMb -> SetXTitle("|Mb|");
+ fHistList->Add(fHistQbNormvsMb);
+
+ fHistMavsMb = new TH2D("Flow_MavsMb_SP","Flow_MavsMb_SP",100,0.,100.,100,0.,100.);
+ fHistMavsMb -> SetYTitle("Ma");
+ fHistMavsMb -> SetXTitle("Mb");
+ fHistList->Add(fHistMavsMb);
+
+
//weights
if(fUsePhiWeights) {
if(!fWeightsList) {
} // end of if(fUsePhiWeights)
fEventNumber = 0; //set number of events to zero
+
+ TH1::AddDirectory(oldHistAddStatus);
}
//-----------------------------------------------------------------------
void AliFlowAnalysisWithScalarProduct::Make(AliFlowEventSimple* anEvent) {
- //Calculate flow based on <QaQb/MaMb> = <v^2>\r
+ //Calculate flow based on <QaQb/MaMb> = <v^2>
//Fill histograms
if (anEvent) {
- //fill control histograms
- fCommonHists->FillControlHistograms(anEvent);
-
//get Q vectors for the eta-subevents
AliFlowVector* vQarray = new AliFlowVector[2];
if (fUsePhiWeights) {
//subevent b
AliFlowVector vQb = vQarray[1];
- //get total Q vector = the sum of subevent a and subevent b
- AliFlowVector vQ = vQa + vQb;
- //weight the Q vectors for the subevents by the multiplicity
- //Note: Weight Q only in the particle loop when it is clear if it should be (m-1) or M
- Double_t dQXa = 0;
- Double_t dQYa = 0;
+ //check that the subevents are not empty:
Double_t dMa = vQa.GetMult();
- if (dMa != 0) {
- dQXa = vQa.X()/dMa;
- dQYa = vQa.Y()/dMa;
- } else {cout<<"empty subevent"<<endl; }
- vQa.Set(dQXa,dQYa);
-
- Double_t dQXb = 0;
- Double_t dQYb = 0;
Double_t dMb = vQb.GetMult();
- if (dMb != 0) {
- dQXb = vQb.X()/dMb;
- dQYb = vQb.Y()/dMb;
- } else {cout<<"empty subevent"<<endl; }
- vQb.Set(dQXb,dQYb);
-
-
- //scalar product of the two subevents
- Double_t dQaQb = (vQa*vQb);
- fHistProQaQb -> Fill(1.,dQaQb,dMa*dMb); //Fill (QaQb/MaMb) with weight (MaMb).
- //needed for the error calculation:
- fHistSumOfLinearWeights -> Fill(0.,dMa*dMb);
- fHistSumOfQuadraticWeights -> Fill(0.,pow(dMa*dMb,2.));
-
-
- //loop over the tracks of the event
- AliFlowTrackSimple* pTrack = NULL;
- Int_t iNumberOfTracks = anEvent->NumberOfTracks();
- Double_t dMq = vQ.GetMult();
+ if (dMa != 0 && dMb != 0) {
+
+
+ //request that the subevent multiplicities are not too different
+ Double_t dRelDiff = TMath::Abs((dMa - dMb)/(dMa + dMb));
+ if (dRelDiff < fRelDiffMsub) {
+
+ //fill control histograms
+ fCommonHists->FillControlHistograms(anEvent);
+
+ //fill some SP control histograms
+ fHistProQaQb -> Fill(1.,vQa*vQb,1.); //Fill with weight 1 -> Weight with MaMb????
+ fHistQaQbCos ->Fill(0.5*TMath::ACos((vQa/vQa.Mod())*(vQb/vQb.Mod()))); //Acos(Qa*Qb) = 2*phi
+ fHistResolution -> Fill(TMath::Cos( vQa.Phi()- vQb.Phi() )); //vQa.Phi() returns 2*phi
+ fHistQaQb -> Fill(vQa*vQb);
+ fHistMavsMb -> Fill(dMb,dMa);
+
+ //get total Q vector = the sum of subevent a and subevent b
+ AliFlowVector vQ = vQa + vQb;
+ //weight the Q vectors for the subevents by the multiplicity
+ //Note: Weight Q only in the particle loop when it is clear if it should be (m-1) or M
+ Double_t dQXa = vQa.X()/dMa;
+ Double_t dQYa = vQa.Y()/dMa;
+ vQa.Set(dQXa,dQYa);
+
+ Double_t dQXb = vQb.X()/dMb;
+ Double_t dQYb = vQb.Y()/dMb;
+ vQb.Set(dQXb,dQYb);
- for (Int_t i=0;i<iNumberOfTracks;i++)
- {
- pTrack = anEvent->GetTrack(i) ;
- if (pTrack){
- Double_t dPhi = pTrack->Phi();
- //set default phi weight to 1
- Double_t dW = 1.;
- //phi weight of pTrack
- if(fUsePhiWeights && fPhiWeights) {
- Int_t iNBinsPhi = fPhiWeights->GetNbinsX();
- dW = fPhiWeights->GetBinContent(1+(Int_t)(TMath::Floor(dPhi*iNBinsPhi/TMath::TwoPi())));
- //bin = 1 + value*nbins/range
- //TMath::Floor rounds to the lower integer
- }
-
- //calculate vU
- TVector2 vU;
- Double_t dUX = TMath::Cos(2*dPhi);
- Double_t dUY = TMath::Sin(2*dPhi);
- vU.Set(dUX,dUY);
- Double_t dModulus = vU.Mod();
- if (dModulus!=0.) vU.Set(dUX/dModulus,dUY/dModulus); // make length 1
- else cerr<<"dModulus is zero!"<<endl;
-
- //redefine the Q vector and devide by its multiplicity
- TVector2 vQm;
- Double_t dQmX = 0.;
- Double_t dQmY = 0.;
- //subtract particle from the flowvector if used to define it
- if (pTrack->InSubevent(0) || pTrack->InSubevent(1)) {
- dQmX = (vQ.X() - dW*dUX)/(dMq-1);
- dQmY = (vQ.Y() - dW*dUY)/(dMq-1);
-
- vQm.Set(dQmX,dQmY);
-
- //dUQ = scalar product of vU and vQm
- Double_t dUQ = (vU * vQm);
- Double_t dPt = pTrack->Pt();
- Double_t dEta = pTrack->Eta();
- //fill the profile histograms
- if (pTrack->InRPSelection()) {
- fHistProUQetaRP -> Fill(dEta,dUQ,(dMq-1)); //Fill (Qu/(Mq-1)) with weight (Mq-1)
- //needed for the error calculation:
- fHistProUQQaQbEtaRP -> Fill(dEta,dUQ*dQaQb,(dMq-1)*dMa*dMb); //Fill [Qu/(Mq-1)]*[QaQb/MaMb] with weight (Mq-1)MaMb
- fHistProUQPtRP -> Fill(dPt,dUQ,(dMq-1)); //Fill (Qu/(Mq-1)) with weight (Mq-1)
- fHistProUQQaQbPtRP -> Fill(dPt,dUQ*dQaQb,(dMq-1)*dMa*dMb); //Fill [Qu/(Mq-1)]*[QaQb/MaMb] with weight (Mq-1)MaMb
-
- fHistSumOfWeightsEtaRP[0]->Fill(dEta,(dMq-1)); // sum of Mq-1
- fHistSumOfWeightsEtaRP[1]->Fill(dEta,pow((dMq-1),2.));// sum of (Mq-1)^2
- fHistSumOfWeightsEtaRP[2]->Fill(dEta,(dMq-1)*dMa*dMb);// sum of (Mq-1)*MaMb
- fHistSumOfWeightsPtRP[0]->Fill(dPt,(dMq-1)); // sum of Mq-1
- fHistSumOfWeightsPtRP[1]->Fill(dPt,pow((dMq-1),2.)); // sum of (Mq-1)^2
- fHistSumOfWeightsPtRP[2]->Fill(dPt,(dMq-1)*dMa*dMb); // sum of (Mq-1)*MaMb
- }
- if (pTrack->InPOISelection()) {
- fHistProUQetaPOI -> Fill(dEta,dUQ,(dMq-1));//Fill (Qu/(Mq-1)) with weight (Mq-1)
- //needed for the error calculation:
- fHistProUQQaQbEtaPOI -> Fill(dEta,dUQ*dQaQb,(dMq-1)*dMa*dMb); //Fill [Qu/(Mq-1)]*[QaQb/MaMb] with weight (Mq-1)MaMb
- fHistProUQPtPOI -> Fill(dPt,dUQ,(dMq-1)); //Fill (Qu/(Mq-1)) with weight (Mq-1)
- fHistProUQQaQbPtPOI -> Fill(dPt,dUQ*dQaQb,(dMq-1)*dMa*dMb); //Fill [Qu/(Mq-1)]*[QaQb/MaMb] with weight (Mq-1)MaMb
-
- fHistSumOfWeightsEtaPOI[0]->Fill(dEta,(dMq-1)); // sum of Mq-1
- fHistSumOfWeightsEtaPOI[1]->Fill(dEta,pow((dMq-1),2.));// sum of (Mq-1)^2
- fHistSumOfWeightsEtaPOI[2]->Fill(dEta,(dMq-1)*dMa*dMb);// sum of (Mq-1)*MaMb
- fHistSumOfWeightsPtPOI[0]->Fill(dPt,(dMq-1)); // sum of Mq-1
- fHistSumOfWeightsPtPOI[1]->Fill(dPt,pow((dMq-1),2.)); // sum of (Mq-1)^2
- fHistSumOfWeightsPtPOI[2]->Fill(dPt,(dMq-1)*dMa*dMb); // sum of (Mq-1)*MaMb
- }
-
- } else { //do not subtract the particle from the flowvector
- dQmX = vQ.X()/dMq;
- dQmY = vQ.Y()/dMq;
+ //scalar product of the two subevents
+ Double_t dQaQb = (vQa*vQb);
+ fHistProQaQbNorm -> Fill(1.,dQaQb,dMa*dMb); //Fill (QaQb/MaMb) with weight (MaMb).
+ //needed for the error calculation:
+ fHistSumOfLinearWeights -> Fill(0.,dMa*dMb);
+ fHistSumOfQuadraticWeights -> Fill(0.,pow(dMa*dMb,2.));
+
+ //fill some SP control histograms
+ fHistQaQbNorm ->Fill(vQa*vQb);
+ fHistQaNorm ->Fill(vQa.Mod());
+ fHistQaNormvsMa->Fill(dMa,vQa.Mod());
+ fHistQbNorm ->Fill(vQb.Mod());
+ fHistQbNormvsMb->Fill(dMb,vQb.Mod());
+
+ //loop over the tracks of the event
+ AliFlowTrackSimple* pTrack = NULL;
+ Int_t iNumberOfTracks = anEvent->NumberOfTracks();
+ Double_t dMq = vQ.GetMult();
+
+ for (Int_t i=0;i<iNumberOfTracks;i++)
+ {
+ pTrack = anEvent->GetTrack(i) ;
+ if (pTrack){
+ Double_t dPhi = pTrack->Phi();
+ //set default phi weight to 1
+ Double_t dW = 1.;
+ //phi weight of pTrack
+ if(fUsePhiWeights && fPhiWeights) {
+ Int_t iNBinsPhi = fPhiWeights->GetNbinsX();
+ dW = fPhiWeights->GetBinContent(1+(Int_t)(TMath::Floor(dPhi*iNBinsPhi/TMath::TwoPi())));
+ //bin = 1 + value*nbins/range
+ //TMath::Floor rounds to the lower integer
+ }
- vQm.Set(dQmX,dQmY);
+ //calculate vU
+ TVector2 vU;
+ Double_t dUX = TMath::Cos(2*dPhi);
+ Double_t dUY = TMath::Sin(2*dPhi);
+ vU.Set(dUX,dUY);
+ Double_t dModulus = vU.Mod();
+ if (dModulus!=0.) vU.Set(dUX/dModulus,dUY/dModulus); // make length 1
+ else cerr<<"dModulus is zero!"<<endl;
- //dUQ = scalar product of vU and vQm
- Double_t dUQ = (vU * vQm);
- Double_t dPt = pTrack->Pt();
- Double_t dEta = pTrack->Eta();
- //fill the profile histograms
- if (pTrack->InRPSelection()) {
- fHistProUQetaRP -> Fill(dEta,dUQ,dMq); //Fill (Qu/Mq) with weight Mq
- //needed for the error calculation:
- fHistProUQQaQbEtaRP -> Fill(dEta,dUQ*dQaQb,dMq*dMa*dMb); //Fill [Qu/Mq]*[QaQb/MaMb] with weight Mq*MaMb
- fHistProUQPtRP -> Fill(dPt,dUQ,dMq); //Fill (Qu/Mq) with weight Mq
- fHistProUQQaQbPtRP -> Fill(dPt,dUQ*dQaQb,dMq*dMa*dMb); //Fill [Qu/Mq]*[QaQb/MaMb] with weight Mq*MaMb
-
- fHistSumOfWeightsEtaRP[0]->Fill(dEta,dMq); // sum of Mq
- fHistSumOfWeightsEtaRP[1]->Fill(dEta,pow(dMq,2.));// sum of Mq^2
- fHistSumOfWeightsEtaRP[2]->Fill(dEta,dMq*dMa*dMb);// sum of Mq*MaMb
- fHistSumOfWeightsPtRP[0]->Fill(dPt,dMq); // sum of Mq
- fHistSumOfWeightsPtRP[1]->Fill(dPt,pow(dMq,2.)); // sum of Mq^2
- fHistSumOfWeightsPtRP[2]->Fill(dPt,dMq*dMa*dMb); // sum of Mq*MaMb
- }
- if (pTrack->InPOISelection()) {
- fHistProUQetaPOI -> Fill(dEta,dUQ,dMq); //Fill (Qu/Mq) with weight Mq
- //needed for the error calculation:
- fHistProUQQaQbEtaPOI -> Fill(dEta,dUQ*dQaQb,dMq*dMa*dMb); //Fill [Qu/Mq]*[QaQb/MaMb] with weight Mq*MaMb
- fHistProUQPtPOI -> Fill(dPt,dUQ,dMq); //Fill (Qu/Mq) with weight Mq
- fHistProUQQaQbPtPOI -> Fill(dPt,dUQ*dQaQb,dMq*dMa*dMb); //Fill [Qu/Mq]*[QaQb/MaMb] with weight Mq*MaMb
+ //redefine the Q vector and devide by its multiplicity
+ TVector2 vQm;
+ Double_t dQmX = 0.;
+ Double_t dQmY = 0.;
+ //subtract particle from the flowvector if used to define it
+ if (pTrack->InSubevent(0) || pTrack->InSubevent(1)) {
+ dQmX = (vQ.X() - dW*dUX)/(dMq-1);
+ dQmY = (vQ.Y() - dW*dUY)/(dMq-1);
+ vQm.Set(dQmX,dQmY);
- fHistSumOfWeightsEtaPOI[0]->Fill(dEta,dMq); // sum of Mq
- fHistSumOfWeightsEtaPOI[1]->Fill(dEta,pow(dMq,2.));// sum of Mq^2
- fHistSumOfWeightsEtaPOI[2]->Fill(dEta,dMq*dMa*dMb);// sum of Mq*MaMb
- fHistSumOfWeightsPtPOI[0]->Fill(dPt,dMq); // sum of Mq
- fHistSumOfWeightsPtPOI[1]->Fill(dPt,pow(dMq,2.)); // sum of Mq^2
- fHistSumOfWeightsPtPOI[2]->Fill(dPt,dMq*dMa*dMb); // sum of Mq*MaMb
- }
- }//track not in subevents
-
- }//track
-
- }//loop over tracks
-
- fEventNumber++;
- // cout<<"@@@@@ "<<fEventNumber<<" events processed"<<endl;
+ //dUQ = scalar product of vU and vQm
+ Double_t dUQ = (vU * vQm);
+ Double_t dPt = pTrack->Pt();
+ Double_t dEta = pTrack->Eta();
+ //fill the profile histograms
+ if (pTrack->InRPSelection()) {
+ fHistProUQetaRP -> Fill(dEta,dUQ,(dMq-1)); //Fill (Qu/(Mq-1)) with weight (Mq-1)
+ //needed for the error calculation:
+ fHistProUQQaQbEtaRP -> Fill(dEta,dUQ*dQaQb,(dMq-1)*dMa*dMb); //Fill [Qu/(Mq-1)]*[QaQb/MaMb] with weight (Mq-1)MaMb
+ fHistProUQPtRP -> Fill(dPt,dUQ,(dMq-1)); //Fill (Qu/(Mq-1)) with weight (Mq-1)
+ fHistProUQQaQbPtRP -> Fill(dPt,dUQ*dQaQb,(dMq-1)*dMa*dMb); //Fill [Qu/(Mq-1)]*[QaQb/MaMb] with weight (Mq-1)MaMb
+
+ fHistSumOfWeightsEtaRP[0]->Fill(dEta,(dMq-1)); // sum of Mq-1
+ fHistSumOfWeightsEtaRP[1]->Fill(dEta,pow((dMq-1),2.));// sum of (Mq-1)^2
+ fHistSumOfWeightsEtaRP[2]->Fill(dEta,(dMq-1)*dMa*dMb);// sum of (Mq-1)*MaMb
+ fHistSumOfWeightsPtRP[0]->Fill(dPt,(dMq-1)); // sum of Mq-1
+ fHistSumOfWeightsPtRP[1]->Fill(dPt,pow((dMq-1),2.)); // sum of (Mq-1)^2
+ fHistSumOfWeightsPtRP[2]->Fill(dPt,(dMq-1)*dMa*dMb); // sum of (Mq-1)*MaMb
+ }
+ if (pTrack->InPOISelection()) {
+ fHistProUQetaPOI -> Fill(dEta,dUQ,(dMq-1));//Fill (Qu/(Mq-1)) with weight (Mq-1)
+ //needed for the error calculation:
+ fHistProUQQaQbEtaPOI -> Fill(dEta,dUQ*dQaQb,(dMq-1)*dMa*dMb); //Fill [Qu/(Mq-1)]*[QaQb/MaMb] with weight (Mq-1)MaMb
+ fHistProUQPtPOI -> Fill(dPt,dUQ,(dMq-1)); //Fill (Qu/(Mq-1)) with weight (Mq-1)
+ fHistProUQQaQbPtPOI -> Fill(dPt,dUQ*dQaQb,(dMq-1)*dMa*dMb); //Fill [Qu/(Mq-1)]*[QaQb/MaMb] with weight (Mq-1)MaMb
+
+ fHistSumOfWeightsEtaPOI[0]->Fill(dEta,(dMq-1)); // sum of Mq-1
+ fHistSumOfWeightsEtaPOI[1]->Fill(dEta,pow((dMq-1),2.));// sum of (Mq-1)^2
+ fHistSumOfWeightsEtaPOI[2]->Fill(dEta,(dMq-1)*dMa*dMb);// sum of (Mq-1)*MaMb
+ fHistSumOfWeightsPtPOI[0]->Fill(dPt,(dMq-1)); // sum of Mq-1
+ fHistSumOfWeightsPtPOI[1]->Fill(dPt,pow((dMq-1),2.)); // sum of (Mq-1)^2
+ fHistSumOfWeightsPtPOI[2]->Fill(dPt,(dMq-1)*dMa*dMb); // sum of (Mq-1)*MaMb
+ }
+
+ } else { //do not subtract the particle from the flowvector
+ dQmX = vQ.X()/dMq;
+ dQmY = vQ.Y()/dMq;
+ vQm.Set(dQmX,dQmY);
+
+ //dUQ = scalar product of vU and vQm
+ Double_t dUQ = (vU * vQm);
+ Double_t dPt = pTrack->Pt();
+ Double_t dEta = pTrack->Eta();
+ //fill the profile histograms
+ if (pTrack->InRPSelection()) {
+ fHistProUQetaRP -> Fill(dEta,dUQ,dMq); //Fill (Qu/Mq) with weight Mq
+ //needed for the error calculation:
+ fHistProUQQaQbEtaRP -> Fill(dEta,dUQ*dQaQb,dMq*dMa*dMb); //Fill [Qu/Mq]*[QaQb/MaMb] with weight Mq*MaMb
+ fHistProUQPtRP -> Fill(dPt,dUQ,dMq); //Fill (Qu/Mq) with weight Mq
+ fHistProUQQaQbPtRP -> Fill(dPt,dUQ*dQaQb,dMq*dMa*dMb); //Fill [Qu/Mq]*[QaQb/MaMb] with weight Mq*MaMb
+
+ fHistSumOfWeightsEtaRP[0]->Fill(dEta,dMq); // sum of Mq
+ fHistSumOfWeightsEtaRP[1]->Fill(dEta,pow(dMq,2.));// sum of Mq^2
+ fHistSumOfWeightsEtaRP[2]->Fill(dEta,dMq*dMa*dMb);// sum of Mq*MaMb
+ fHistSumOfWeightsPtRP[0]->Fill(dPt,dMq); // sum of Mq
+ fHistSumOfWeightsPtRP[1]->Fill(dPt,pow(dMq,2.)); // sum of Mq^2
+ fHistSumOfWeightsPtRP[2]->Fill(dPt,dMq*dMa*dMb); // sum of Mq*MaMb
+ }
+ if (pTrack->InPOISelection()) {
+ fHistProUQetaPOI -> Fill(dEta,dUQ,dMq); //Fill (Qu/Mq) with weight Mq
+ //needed for the error calculation:
+ fHistProUQQaQbEtaPOI -> Fill(dEta,dUQ*dQaQb,dMq*dMa*dMb); //Fill [Qu/Mq]*[QaQb/MaMb] with weight Mq*MaMb
+ fHistProUQPtPOI -> Fill(dPt,dUQ,dMq); //Fill (Qu/Mq) with weight Mq
+ fHistProUQQaQbPtPOI -> Fill(dPt,dUQ*dQaQb,dMq*dMa*dMb); //Fill [Qu/Mq]*[QaQb/MaMb] with weight Mq*MaMb
+
+ fHistSumOfWeightsEtaPOI[0]->Fill(dEta,dMq); // sum of Mq
+ fHistSumOfWeightsEtaPOI[1]->Fill(dEta,pow(dMq,2.));// sum of Mq^2
+ fHistSumOfWeightsEtaPOI[2]->Fill(dEta,dMq*dMa*dMb);// sum of Mq*MaMb
+ fHistSumOfWeightsPtPOI[0]->Fill(dPt,dMq); // sum of Mq
+ fHistSumOfWeightsPtPOI[1]->Fill(dPt,pow(dMq,2.)); // sum of Mq^2
+ fHistSumOfWeightsPtPOI[2]->Fill(dPt,dMq*dMa*dMb); // sum of Mq*MaMb
+ }
+ }//track not in subevents
+
+ }//track
+
+ }//loop over tracks
+
+ fEventNumber++;
+
+ } //difference Ma and Mb
+
+ }// subevents not empty
delete [] vQarray;
- }
-}
+
+ } //event
+
+}//end of Make()
//--------------------------------------------------------------------
void AliFlowAnalysisWithScalarProduct::GetOutputHistograms(TList *outputListHistos){
AliFlowCommonHistResults *pCommonHistResults = dynamic_cast<AliFlowCommonHistResults*>
(outputListHistos->FindObject("AliFlowCommonHistResultsSP"));
TProfile* pHistProQaQb = dynamic_cast<TProfile*>(outputListHistos->FindObject("Flow_QaQb_SP"));
+ TProfile* pHistProQaQbNorm = dynamic_cast<TProfile*>(outputListHistos->FindObject("FlowPro_QaQbNorm_SP"));
+ TH1D* pHistSumOfLinearWeights = dynamic_cast<TH1D*>(outputListHistos->FindObject("Flow_SumOfLinearWeights_SP"));
+ TH1D* pHistSumOfQuadraticWeights = dynamic_cast<TH1D*>(outputListHistos->FindObject("Flow_SumOfQuadraticWeights_SP"));
+
TProfile* pHistProUQetaRP = dynamic_cast<TProfile*>(outputListHistos->FindObject("Flow_UQetaRP_SP"));
TProfile* pHistProUQetaPOI = dynamic_cast<TProfile*>(outputListHistos->FindObject("Flow_UQetaPOI_SP"));
TProfile* pHistProUQPtRP = dynamic_cast<TProfile*>(outputListHistos->FindObject("Flow_UQPtRP_SP"));
TProfile* pHistProUQPtPOI = dynamic_cast<TProfile*>(outputListHistos->FindObject("Flow_UQPtPOI_SP"));
- TH1D* pHistSumOfLinearWeights = dynamic_cast<TH1D*>(outputListHistos->FindObject("Flow_SumOfLinearWeights_SP"));
- TH1D* pHistSumOfQuadraticWeights = dynamic_cast<TH1D*>(outputListHistos->FindObject("Flow_SumOfQuadraticWeights_SP"));
TProfile* pHistProUQQaQbPtRP = dynamic_cast<TProfile*>(outputListHistos->FindObject("Flow_UQQaQbPtRP_SP"));
TProfile* pHistProUQQaQbEtaRP = dynamic_cast<TProfile*>(outputListHistos->FindObject("Flow_UQQaQbEtaRP_SP"));
TProfile* pHistProUQQaQbPtPOI = dynamic_cast<TProfile*>(outputListHistos->FindObject("Flow_UQQaQbPtPOI_SP"));
TProfile* pHistProUQQaQbEtaPOI = dynamic_cast<TProfile*>(outputListHistos->FindObject("Flow_UQQaQbEtaPOI_SP"));
-
TString weightFlag[3] = {"w_Qu_","w_Qu^2_","w_QuQaQb_"};
TH1D* pHistSumOfWeightsPtRP[3] = {NULL};
TH1D* pHistSumOfWeightsEtaRP[3] = {NULL};
TH1D* pHistSumOfWeightsEtaPOI[3] = {NULL};
for(Int_t i=0;i<3;i++)
{
- pHistSumOfWeightsPtRP[i] = dynamic_cast<TH1D*>(outputListHistos->FindObject(Form("Flow_SumOfWeights%dPtRP_SP",weightFlag[i].Data())));
- pHistSumOfWeightsEtaRP[i] = dynamic_cast<TH1D*>(outputListHistos->FindObject(Form("Flow_SumOfWeights%dEtaRP_SP",weightFlag[i].Data())));
- pHistSumOfWeightsPtPOI[i] = dynamic_cast<TH1D*>(outputListHistos->FindObject(Form("Flow_SumOfWeights%dPtPOI_SP",weightFlag[i].Data())));
- pHistSumOfWeightsEtaPOI[i] = dynamic_cast<TH1D*>(outputListHistos->FindObject(Form("Flow_SumOfWeights%dEtaPOI_SP",weightFlag[i].Data())));
+ pHistSumOfWeightsPtRP[i] = dynamic_cast<TH1D*>(outputListHistos->FindObject(Form("Flow_SumOfWeights%sPtRP_SP",weightFlag[i].Data())));
+ pHistSumOfWeightsEtaRP[i] = dynamic_cast<TH1D*>(outputListHistos->FindObject(Form("Flow_SumOfWeights%sEtaRP_SP",weightFlag[i].Data())));
+ pHistSumOfWeightsPtPOI[i] = dynamic_cast<TH1D*>(outputListHistos->FindObject(Form("Flow_SumOfWeights%sPtPOI_SP",weightFlag[i].Data())));
+ pHistSumOfWeightsEtaPOI[i] = dynamic_cast<TH1D*>(outputListHistos->FindObject(Form("Flow_SumOfWeights%sEtaPOI_SP",weightFlag[i].Data())));
}
+ TH1D* pHistQaQb = dynamic_cast<TH1D*>(outputListHistos->FindObject("Flow_QaQb_SP"));
+ TH1D* pHistQaQbNorm = dynamic_cast<TH1D*>(outputListHistos->FindObject("Flow_QaQbNorm_SP"));
+ TH1D* pHistQaQbCos = dynamic_cast<TH1D*>(outputListHistos->FindObject("Flow_QaQbCos_SP"));
+ TH1D* pHistResolution = dynamic_cast<TH1D*>(outputListHistos->FindObject("Flow_resolution_SP"));
+ TH1D* pHistQaNorm = dynamic_cast<TH1D*>(outputListHistos->FindObject("Flow_QaNorm_SP"));
+ TH2D* pHistQaNormvsMa = dynamic_cast<TH2D*>(outputListHistos->FindObject("Flow_QaNormvsMa_SP"));
+ TH1D* pHistQbNorm = dynamic_cast<TH1D*>(outputListHistos->FindObject("Flow_QbNorm_SP"));
+ TH2D* pHistQbNormvsMb = dynamic_cast<TH2D*>(outputListHistos->FindObject("Flow_QbNormvsMb_SP"));
+ TH2D* pHistMavsMb = dynamic_cast<TH2D*>(outputListHistos->FindObject("Flow_MavsMb_SP"));
+
//pass the pointers to the task
- if (pCommonHist && pCommonHistResults && pHistProQaQb &&
- pHistProUQetaRP && pHistProUQetaPOI && pHistProUQPtRP && pHistProUQPtPOI
- && pHistSumOfLinearWeights && pHistSumOfQuadraticWeights && pHistProUQQaQbPtRP
- && pHistProUQQaQbEtaRP && pHistProUQQaQbPtPOI && pHistProUQQaQbEtaPOI) {
+ if (pCommonHist && pCommonHistResults && pHistProQaQb && pHistProQaQbNorm &&
+ pHistSumOfLinearWeights && pHistSumOfQuadraticWeights &&
+ pHistQaQb && pHistQaQbNorm && pHistQaQbCos && pHistResolution &&
+ pHistQaNorm && pHistQaNormvsMa && pHistQbNorm && pHistQbNormvsMb &&
+ pHistMavsMb &&
+ pHistProUQetaRP && pHistProUQetaPOI &&
+ pHistProUQPtRP && pHistProUQPtPOI &&
+ pHistProUQQaQbPtRP && pHistProUQQaQbEtaRP &&
+ pHistProUQQaQbPtPOI && pHistProUQQaQbEtaPOI) {
this -> SetCommonHists(pCommonHist);
this -> SetCommonHistsRes(pCommonHistResults);
this -> SetHistProQaQb(pHistProQaQb);
+ this -> SetHistProQaQbNorm(pHistProQaQbNorm);
+ this -> SetHistSumOfLinearWeights(pHistSumOfLinearWeights);
+ this -> SetHistSumOfQuadraticWeights(pHistSumOfQuadraticWeights);
+ this -> SetHistQaQb(pHistQaQb);
+ this -> SetHistQaQbNorm(pHistQaQbNorm);
+ this -> SetHistQaQbCos(pHistQaQbCos);
+ this -> SetHistResolution(pHistResolution);
+ this -> SetHistQaNorm(pHistQaNorm);
+ this -> SetHistQaNormvsMa(pHistQaNormvsMa);
+ this -> SetHistQbNorm(pHistQbNorm);
+ this -> SetHistQbNormvsMb(pHistQbNormvsMb);
+ this -> SetHistMavsMb(pHistMavsMb);
this -> SetHistProUQetaRP(pHistProUQetaRP);
this -> SetHistProUQetaPOI(pHistProUQetaPOI);
this -> SetHistProUQPtRP(pHistProUQPtRP);
this -> SetHistProUQQaQbEtaRP(pHistProUQQaQbEtaRP);
this -> SetHistProUQQaQbPtPOI(pHistProUQQaQbPtPOI);
this -> SetHistProUQQaQbEtaPOI(pHistProUQQaQbEtaPOI);
- this -> SetHistSumOfLinearWeights(pHistSumOfLinearWeights);
- this -> SetHistSumOfQuadraticWeights(pHistSumOfQuadraticWeights);
- }
-
- for(Int_t i=0;i<3;i++)
- {
- if(pHistSumOfWeightsPtRP[i]) this -> SetHistSumOfWeightsPtRP(pHistSumOfWeightsPtRP[i],i);
- if(pHistSumOfWeightsEtaRP[i]) this -> SetHistSumOfWeightsPtRP(pHistSumOfWeightsEtaRP[i],i);
- if(pHistSumOfWeightsPtPOI[i]) this -> SetHistSumOfWeightsPtRP(pHistSumOfWeightsPtPOI[i],i);
- if(pHistSumOfWeightsEtaPOI[i]) this -> SetHistSumOfWeightsPtRP(pHistSumOfWeightsEtaPOI[i],i);
- }
-
+
+ for(Int_t i=0;i<3;i++) {
+ if(pHistSumOfWeightsPtRP[i]) this -> SetHistSumOfWeightsPtRP(pHistSumOfWeightsPtRP[i],i);
+ if(pHistSumOfWeightsEtaRP[i]) this -> SetHistSumOfWeightsEtaRP(pHistSumOfWeightsEtaRP[i],i);
+ if(pHistSumOfWeightsPtPOI[i]) this -> SetHistSumOfWeightsPtPOI(pHistSumOfWeightsPtPOI[i],i);
+ if(pHistSumOfWeightsEtaPOI[i]) this -> SetHistSumOfWeightsEtaPOI(pHistSumOfWeightsEtaPOI[i],i);
+ }
+
+ } else {
+ cout<<"WARNING: Histograms needed to run Finish() in SP are not accessable!"<<endl; }
+
} // end of if(outputListHistos)
}
//--------------------------------------------------------------------
void AliFlowAnalysisWithScalarProduct::Finish() {
- //calculate flow and fill the AliFlowCommonHistResults\r
+ //calculate flow and fill the AliFlowCommonHistResults
if (fDebug) cout<<"AliFlowAnalysisWithScalarProduct::Finish()"<<endl;
cout<<"*************************************"<<endl;
Int_t iNbinsPt = AliFlowCommonConstants::GetMaster()->GetNbinsPt();
Int_t iNbinsEta = AliFlowCommonConstants::GetMaster()->GetNbinsEta();
-
+ //Calculate the event plane resolution
+ //----------------------------------
+ Double_t dCos2phi = fHistResolution->GetMean();
+ if (dCos2phi !=0.0){
+ Double_t dResolution = TMath::Sqrt(2*dCos2phi);
+ cout<<"An estimate of the event plane resolution is: "<<dResolution<<endl;
+ cout<<endl;
+ }
+
//Calculate reference flow (noname)
//----------------------------------
//weighted average over (QaQb/MaMb) with weight (MaMb)
- Double_t dQaQb = fHistProQaQb->GetBinContent(1);
- Double_t dV = TMath::Sqrt(dQaQb);
+ Double_t dQaQb = fHistProQaQbNorm->GetBinContent(1);
+ Double_t dV = -999.;
+ if(dQaQb>=0.)
+ {
+ dV = TMath::Sqrt(dQaQb);
+ }
//statistical error of dQaQb:
// statistical error = term1 * spread * term2:
// term1 = sqrt{sum_{i=1}^{N} w^2}/(sum_{i=1}^{N} w)
// term2 = 1/sqrt(1-term1^2)
- Double_t dSpreadQaQb = fHistProQaQb->GetBinError(1);
+ Double_t dSpreadQaQb = fHistProQaQbNorm->GetBinError(1);
Double_t dSumOfLinearWeights = fHistSumOfLinearWeights->GetBinContent(1);
Double_t dSumOfQuadraticWeights = fHistSumOfQuadraticWeights->GetBinContent(1);
Double_t dTerm1 = 0.;
//Calculate differential flow and integrated flow (RP, POI)
//---------------------------------------------------------
-
//v as a function of eta for RP selection
- for(Int_t b=0;b<iNbinsEta;b++) {
+ for(Int_t b=1;b<iNbinsEta+1;b++) {
Double_t duQpro = fHistProUQetaRP->GetBinContent(b);
- Double_t dv2pro = 0.;
+ Double_t dv2pro = -999.;
if (dV!=0.) { dv2pro = duQpro/dV; }
//calculate the statistical error
Double_t dv2ProErr = CalculateStatisticalError(b, dStatErrorQaQb, fHistProUQetaRP, fHistProUQQaQbEtaRP, fHistSumOfWeightsEtaRP);
-
//fill TH1D
- fCommonHistsRes->FillDifferentialFlowEtaRP(b, dv2pro, dv2ProErr);
+ fCommonHistsRes->FillDifferentialFlowEtaRP(b, dv2pro, dv2ProErr);
} //loop over bins b
//v as a function of eta for POI selection
- for(Int_t b=0;b<iNbinsEta;b++) {
+ for(Int_t b=1;b<iNbinsEta+1;b++) {
Double_t duQpro = fHistProUQetaPOI->GetBinContent(b);
- Double_t dv2pro = 0.;
+ Double_t dv2pro = -999.;
if (dV!=0.) { dv2pro = duQpro/dV; }
//calculate the statistical error
Double_t dv2ProErr = CalculateStatisticalError(b, dStatErrorQaQb, fHistProUQetaPOI, fHistProUQQaQbEtaPOI, fHistSumOfWeightsEtaPOI);
Double_t dSumRP = 0.;
Double_t dErrVRP =0.;
- for(Int_t b=0;b<iNbinsPt;b++) {
+ for(Int_t b=1;b<iNbinsPt+1;b++) {
Double_t duQpro = fHistProUQPtRP->GetBinContent(b);
- Double_t dv2pro = 0.;
+ Double_t dv2pro = -999.;
if (dV!=0.) { dv2pro = duQpro/dV; }
//calculate the statistical error
Double_t dv2ProErr = CalculateStatisticalError(b, dStatErrorQaQb, fHistProUQPtRP, fHistProUQQaQbPtRP, fHistSumOfWeightsPtRP);
Double_t dSumPOI = 0.;
Double_t dErrVPOI =0.;
- for(Int_t b=0;b<iNbinsPt;b++) {
+ for(Int_t b=1;b<iNbinsPt+1;b++) {
Double_t duQpro = fHistProUQPtPOI->GetBinContent(b);
- Double_t dv2pro = 0.;
+ Double_t dv2pro = -999.;
if (dV!=0.) { dv2pro = duQpro/dV; }
//calculate the statistical error
Double_t dv2ProErr = CalculateStatisticalError(b, dStatErrorQaQb, fHistProUQPtPOI, fHistProUQQaQbPtPOI, fHistSumOfWeightsPtPOI);
} //loop over bins b
if (dSumPOI != 0.) {
- dVPOI /= dSumPOI; //the pt distribution should be normalised\r
+ dVPOI /= dSumPOI; //the pt distribution should be normalised
dErrVPOI /= (dSumPOI*dSumPOI);
dErrVPOI = TMath::Sqrt(dErrVPOI);
}
//--------------------------------------------------------------------
Double_t AliFlowAnalysisWithScalarProduct::CalculateStatisticalError(Int_t b, Double_t aStatErrorQaQb, TProfile* pHistProUQ, TProfile* pHistProUQQaQb, TH1D** pHistSumOfWeights) {
-
//calculate the statistical error for differential flow for bin b
Double_t duQproSpread = pHistProUQ->GetBinError(b);
Double_t sumOfMq = pHistSumOfWeights[0]->GetBinContent(b);
Double_t sumOfMqSquared = pHistSumOfWeights[1]->GetBinContent(b);
+ Double_t dQaQb = fHistProQaQbNorm->GetBinContent(1);
Double_t dTerm1 = 0.;
Double_t dTerm2 = 0.;
if(sumOfMq) {
dTerm2 = 1./pow(1.-pow(dTerm1,2.),0.5);
}
Double_t duQproErr = dTerm1*duQproSpread*dTerm2;
-
// covariances:
Double_t dTerm1Cov = pHistSumOfWeights[2]->GetBinContent(b);
Double_t dTerm2Cov = fHistSumOfLinearWeights->GetBinContent(1);
Double_t dDenominator = 1.-dTerm1Cov/(dTerm2Cov*dTerm3Cov);
Double_t dPrefactor = dTerm1Cov/(dTerm2Cov*dTerm3Cov);
if(dDenominator!=0) {
- Double_t dCovariance = (pHistProUQQaQb->GetBinContent(b)-fHistProQaQb->GetBinContent(1)*pHistProUQ->GetBinContent(b))/dDenominator;
+ Double_t dCovariance = (pHistProUQQaQb->GetBinContent(b)-dQaQb*pHistProUQ->GetBinContent(b))/dDenominator;
dWeightedCovariance = dCovariance*dPrefactor;
}
}
+
Double_t dv2ProErr = 0.; // final statitical error:
- if(fHistProQaQb->GetBinContent(1)>0.) {
- Double_t dv2ProErrorSquared = (1./4.)*pow(fHistProQaQb->GetBinContent(1),-3.)*
+ if(dQaQb>0.) {
+ Double_t dv2ProErrorSquared = (1./4.)*pow(dQaQb,-3.)*
(pow(pHistProUQ->GetBinContent(b),2.)*pow(aStatErrorQaQb,2.)
- + 4.*pow(fHistProQaQb->GetBinContent(1),2.)*pow(duQproErr,2.)
- - 4.*fHistProQaQb->GetBinContent(1)*pHistProUQ->GetBinContent(b)*dWeightedCovariance);
+ + 4.*pow(dQaQb,2.)*pow(duQproErr,2.)
+ - 4.*dQaQb*pHistProUQ->GetBinContent(b)*dWeightedCovariance);
if(dv2ProErrorSquared>0.) dv2ProErr = pow(dv2ProErrorSquared,0.5);
}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff