+++ /dev/null
-////////////////////////////////////////////////////////////////////////////////
-// //
-// AliFemtoCorrFctnDEtaDPhi - A correlation function that analyzes //
-// two particle correlations with respect to the azimuthal angle (phi) //
-// and pseudorapidity (eta) difference //
-// //
-// Authors: Adam Kisiel Adam.Kisiel@cern.ch //
-// //
-////////////////////////////////////////////////////////////////////////////////
-
-#include "AliFemtoCorrFctnDEtaDPhi.h"
-#include "AliFemtoModelHiddenInfo.h"
-//#include "AliFemtoHisto.hh"
-#include <cstdio>
-#include <TMath.h>
-
-#ifdef __ROOT__
-ClassImp(AliFemtoCorrFctnDEtaDPhi)
-#endif
-
-#define PIH 1.57079632679489656
-#define PIT 6.28318530717958623
-#define PIQ 4.71238898038468967
-
-//____________________________
-AliFemtoCorrFctnDEtaDPhi::AliFemtoCorrFctnDEtaDPhi(char* title, const int& aPhiBins=20, const int& aEtaBins=20):
- AliFemtoCorrFctn(),
- fDPhiDEtaNumerator(0),
- fDPhiDEtaDenominator(0),
- fDPhiNumerator(0),
- fDPhiDenominator(0),
- fDCosNumerator(0),
- fDCosDenominator(0),
- fDoPtAnalysis(0),
- fDPhiPtNumerator(0),
- fDPhiPtDenominator(0),
- fDCosPtNumerator(0),
- fDCosPtDenominator(0)
-{
- // set up numerator
- char tTitNumD[101] = "NumDPhiDEta";
- strncat(tTitNumD,title, 100);
- fDPhiDEtaNumerator = new TH2D(tTitNumD,title,aPhiBins,-0.5*TMath::Pi(),1.5*TMath::Pi(),aEtaBins,-2.5,2.5);
- // set up denominator
- char tTitDenD[101] = "DenDPhiDEta";
- strncat(tTitDenD,title, 100);
- fDPhiDEtaDenominator = new TH2D(tTitDenD,title,aPhiBins,-0.5*TMath::Pi(),1.5*TMath::Pi(),aEtaBins,-2.5,2.5);
-
- // set up numerator
- char tTitNumDPhi[101] = "NumDPhi";
- strncat(tTitNumDPhi,title, 100);
- fDPhiNumerator = new TH1D(tTitNumDPhi,title,aPhiBins*2,-0.5*TMath::Pi(),1.5*TMath::Pi());
- // set up denominator
- char tTitDenDPhi[101] = "DenDPhi";
- strncat(tTitDenDPhi,title, 100);
- fDPhiDenominator = new TH1D(tTitDenDPhi,title,aPhiBins*2,-0.5*TMath::Pi(),1.5*TMath::Pi());
-
- // set up numerator
- char tTitNumDCos[101] = "NumDCos";
- strncat(tTitNumDCos,title, 100);
- fDCosNumerator = new TH1D(tTitNumDCos,title,aPhiBins*2,-1.0,1.0);
- // set up denominator
- char tTitDenDCos[101] = "DenDCos";
- strncat(tTitDenDCos,title, 100);
- fDCosDenominator = new TH1D(tTitDenDCos,title,aPhiBins*2,-1.0,1.0);
-
- // to enable error bar calculation...
- fDPhiDEtaNumerator->Sumw2();
- fDPhiDEtaDenominator->Sumw2();
- fDPhiNumerator->Sumw2();
- fDPhiDenominator->Sumw2();
- fDCosNumerator->Sumw2();
- fDCosDenominator->Sumw2();
-}
-
-//____________________________
-AliFemtoCorrFctnDEtaDPhi::AliFemtoCorrFctnDEtaDPhi(const AliFemtoCorrFctnDEtaDPhi& aCorrFctn) :
- AliFemtoCorrFctn(),
- fDPhiDEtaNumerator(0),
- fDPhiDEtaDenominator(0),
- fDPhiNumerator(0),
- fDPhiDenominator(0),
- fDCosNumerator(0),
- fDCosDenominator(0),
- fDoPtAnalysis(0),
- fDPhiPtNumerator(0),
- fDPhiPtDenominator(0),
- fDCosPtNumerator(0),
- fDCosPtDenominator(0)
-{
- // copy constructor
- if (aCorrFctn.fDPhiDEtaNumerator)
- fDPhiDEtaNumerator = new TH2D(*aCorrFctn.fDPhiDEtaNumerator);
- else
- fDPhiDEtaNumerator = 0;
- if (aCorrFctn.fDPhiDEtaDenominator)
- fDPhiDEtaDenominator = new TH2D(*aCorrFctn.fDPhiDEtaDenominator);
- else
- fDPhiDEtaDenominator = 0;
-
- if (aCorrFctn.fDPhiNumerator)
- fDPhiNumerator = new TH1D(*aCorrFctn.fDPhiNumerator);
- else
- fDPhiNumerator = 0;
- if (aCorrFctn.fDPhiDenominator)
- fDPhiDenominator = new TH1D(*aCorrFctn.fDPhiDenominator);
- else
- fDPhiDenominator = 0;
-
- if (aCorrFctn.fDCosNumerator)
- fDCosNumerator = new TH1D(*aCorrFctn.fDCosNumerator);
- else
- fDCosNumerator = 0;
- if (aCorrFctn.fDCosDenominator)
- fDCosDenominator = new TH1D(*aCorrFctn.fDCosDenominator);
- else
- fDCosDenominator = 0;
-
- if (aCorrFctn.fDPhiPtNumerator)
- fDPhiPtNumerator = new TH2D(*aCorrFctn.fDPhiPtNumerator);
- else
- fDPhiPtNumerator = 0;
- if (aCorrFctn.fDPhiPtDenominator)
- fDPhiPtDenominator = new TH2D(*aCorrFctn.fDPhiPtDenominator);
- else
- fDPhiPtDenominator = 0;
-
- if (aCorrFctn.fDCosPtNumerator)
- fDCosPtNumerator = new TH2D(*aCorrFctn.fDCosPtNumerator);
- else
- fDCosPtNumerator = 0;
- if (aCorrFctn.fDCosPtDenominator)
- fDCosPtDenominator = new TH2D(*aCorrFctn.fDCosPtDenominator);
- else
- fDCosPtDenominator = 0;
-
-}
-//____________________________
-AliFemtoCorrFctnDEtaDPhi::~AliFemtoCorrFctnDEtaDPhi(){
- // destructor
- delete fDPhiDEtaNumerator;
- delete fDPhiDEtaDenominator;
- delete fDPhiNumerator;
- delete fDPhiDenominator;
- delete fDCosNumerator;
- delete fDCosDenominator;
- if (fDoPtAnalysis) {
- delete fDPhiPtNumerator;
- delete fDPhiPtDenominator;
- delete fDCosPtNumerator;
- delete fDCosPtDenominator;
- }
-}
-//_________________________
-AliFemtoCorrFctnDEtaDPhi& AliFemtoCorrFctnDEtaDPhi::operator=(const AliFemtoCorrFctnDEtaDPhi& aCorrFctn)
-{
- // assignment operator
- if (this == &aCorrFctn)
- return *this;
-
- if (aCorrFctn.fDPhiDEtaNumerator)
- fDPhiDEtaNumerator = new TH2D(*aCorrFctn.fDPhiDEtaNumerator);
- else
- fDPhiDEtaNumerator = 0;
- if (aCorrFctn.fDPhiDEtaDenominator)
- fDPhiDEtaDenominator = new TH2D(*aCorrFctn.fDPhiDEtaDenominator);
- else
- fDPhiDEtaDenominator = 0;
-
- if (aCorrFctn.fDPhiNumerator)
- fDPhiNumerator = new TH1D(*aCorrFctn.fDPhiNumerator);
- else
- fDPhiNumerator = 0;
- if (aCorrFctn.fDPhiDenominator)
- fDPhiDenominator = new TH1D(*aCorrFctn.fDPhiDenominator);
- else
- fDPhiDenominator = 0;
-
- if (aCorrFctn.fDCosNumerator)
- fDCosNumerator = new TH1D(*aCorrFctn.fDCosNumerator);
- else
- fDCosNumerator = 0;
- if (aCorrFctn.fDCosDenominator)
- fDCosDenominator = new TH1D(*aCorrFctn.fDCosDenominator);
- else
- fDCosDenominator = 0;
-
- if (aCorrFctn.fDPhiPtNumerator)
- fDPhiPtNumerator = new TH2D(*aCorrFctn.fDPhiPtNumerator);
- else
- fDPhiPtNumerator = 0;
- if (aCorrFctn.fDPhiPtDenominator)
- fDPhiPtDenominator = new TH2D(*aCorrFctn.fDPhiPtDenominator);
- else
- fDPhiPtDenominator = 0;
-
- if (aCorrFctn.fDCosPtNumerator)
- fDCosPtNumerator = new TH2D(*aCorrFctn.fDCosPtNumerator);
- else
- fDCosPtNumerator = 0;
- if (aCorrFctn.fDCosPtDenominator)
- fDCosPtDenominator = new TH2D(*aCorrFctn.fDCosPtDenominator);
- else
- fDCosPtDenominator = 0;
-
- return *this;
-}
-//_________________________
-void AliFemtoCorrFctnDEtaDPhi::Finish(){
- // here is where we should normalize, fit, etc...
- // we should NOT Draw() the histos (as I had done it below),
- // since we want to insulate ourselves from root at this level
- // of the code. Do it instead at root command line with browser.
- // mShareNumerator->Draw();
- //mShareDenominator->Draw();
- //mRatio->Draw();
-
-}
-
-//____________________________
-AliFemtoString AliFemtoCorrFctnDEtaDPhi::Report(){
- // create report
- string stemp = "TPC Ncls Correlation Function Report:\n";
- char ctemp[100];
- snprintf(ctemp , 100, "Number of entries in numerator:\t%E\n",fDPhiDEtaNumerator->GetEntries());
- stemp += ctemp;
- snprintf(ctemp , 100, "Number of entries in denominator:\t%E\n",fDPhiDEtaDenominator->GetEntries());
- stemp += ctemp;
- // stemp += mCoulombWeight->Report();
- AliFemtoString returnThis = stemp;
- return returnThis;
-}
-//____________________________
-void AliFemtoCorrFctnDEtaDPhi::AddRealPair( AliFemtoPair* pair){
- // add real (effect) pair
- if (fPairCut)
- if (!fPairCut->Pass(pair)) return;
-
- double phi1 = pair->Track1()->Track()->P().Phi();
- double phi2 = pair->Track2()->Track()->P().Phi();
- double eta1 = pair->Track1()->Track()->P().PseudoRapidity();
- double eta2 = pair->Track2()->Track()->P().PseudoRapidity();
-
- double dphi = phi1 - phi2;
- while (dphi<-PIH) dphi+=PIT;
- while (dphi>PIQ) dphi-=PIT;
-
- double deta = eta1 - eta2;
-
-// double px1 = pair->Track1()->Track()->P().x();
-// double py1 = pair->Track1()->Track()->P().y();
-// double pz1 = pair->Track1()->Track()->P().z();
-
-// double px2 = pair->Track2()->Track()->P().x();
-// double py2 = pair->Track2()->Track()->P().y();
-// double pz2 = pair->Track2()->Track()->P().z();
-
-// double pt1 = TMath::Hypot(px1, py1);
-// double pt2 = TMath::Hypot(px2, py2);
-// double ptmin = pt1>pt2 ? pt2 : pt1;
-
-// double cosphi = (px1*px2 + py1*py2 + pz1*pz2)/
-// sqrt((px1*px1 + py1*py1 + pz1*pz1)*(px2*px2 + py2*py2 + pz2*pz2));
-
- fDPhiDEtaNumerator->Fill(dphi, deta);
-
- fDPhiNumerator->Fill(dphi);
-// fDCosNumerator->Fill(cosphi);
-
- if (fDoPtAnalysis) {
-// fDPhiPtNumerator->Fill(dphi, ptmin);
-// fDCosPtNumerator->Fill(cosphi, ptmin);
- }
-
-}
-//____________________________
-void AliFemtoCorrFctnDEtaDPhi::AddMixedPair( AliFemtoPair* pair){
- // add mixed (background) pair
- if (fPairCut)
- if (!fPairCut->Pass(pair)) return;
-
- double phi1 = pair->Track1()->Track()->P().Phi();
- double phi2 = pair->Track2()->Track()->P().Phi();
- double eta1 = pair->Track1()->Track()->P().PseudoRapidity();
- double eta2 = pair->Track2()->Track()->P().PseudoRapidity();
-
- double dphi = phi1 - phi2;
- while (dphi<-PIH) dphi+=PIT;
- while (dphi>PIQ) dphi-=PIT;
-
- double deta = eta1 - eta2;
-
-// double px1 = pair->Track1()->Track()->P().x();
-// double py1 = pair->Track1()->Track()->P().y();
-// double pz1 = pair->Track1()->Track()->P().z();
-
-// double px2 = pair->Track2()->Track()->P().x();
-// double py2 = pair->Track2()->Track()->P().y();
-// double pz2 = pair->Track2()->Track()->P().z();
-
-// double pt1 = TMath::Hypot(px1, py1);
-// double pt2 = TMath::Hypot(px2, py2);
-// double ptmin = pt1>pt2 ? pt2 : pt1;
-
-// double cosphi = (px1*px2 + py1*py2 + pz1*pz2)/
-// sqrt((px1*px1 + py1*py1 + pz1*pz1)*(px2*px2 + py2*py2 + pz2*pz2));
-
- fDPhiDEtaDenominator->Fill(dphi, deta);
-
- fDPhiDenominator->Fill(dphi);
-// fDCosDenominator->Fill(cosphi);
-
- if (fDoPtAnalysis) {
- // fDPhiPtDenominator->Fill(dphi, ptmin);
- // fDCosPtDenominator->Fill(cosphi, ptmin);
- }
-}
-
-
-void AliFemtoCorrFctnDEtaDPhi::WriteHistos()
-{
- // Write out result histograms
- fDPhiDEtaNumerator->Write();
- fDPhiDEtaDenominator->Write();
- fDPhiNumerator->Write();
- fDPhiDenominator->Write();
- fDCosNumerator->Write();
- fDCosDenominator->Write();
- if (fDoPtAnalysis) {
- fDPhiPtNumerator->Write();
- fDPhiPtDenominator->Write();
- fDCosPtNumerator->Write();
- fDCosPtDenominator->Write();
- }
-}
-
-TList* AliFemtoCorrFctnDEtaDPhi::GetOutputList()
-{
- // Prepare the list of objects to be written to the output
- TList *tOutputList = new TList();
-
- tOutputList->Add(fDPhiDEtaNumerator);
- tOutputList->Add(fDPhiDEtaDenominator);
- tOutputList->Add(fDPhiNumerator);
- tOutputList->Add(fDPhiDenominator);
- tOutputList->Add(fDCosNumerator);
- tOutputList->Add(fDCosDenominator);
- if (fDoPtAnalysis) {
- tOutputList->Add(fDPhiPtNumerator);
- tOutputList->Add(fDPhiPtDenominator);
- tOutputList->Add(fDCosPtNumerator);
- tOutputList->Add(fDCosPtDenominator);
- }
-
- return tOutputList;
-
-}
-
-void AliFemtoCorrFctnDEtaDPhi::SetDoPtAnalysis(int do2d)
-{
- fDoPtAnalysis = do2d;
-
- int aPhiBins = fDPhiDEtaNumerator->GetNbinsX();
- const char *title = fDPhiDEtaNumerator->GetTitle();
-
- // set up numerator
- char tTitNumDPhiPt[101] = "NumDPhiPt";
- strncat(tTitNumDPhiPt,title, 100);
- fDPhiPtNumerator = new TH2D(tTitNumDPhiPt,title,aPhiBins*2,-0.5*TMath::Pi(),1.5*TMath::Pi(), 30, 0.0, 3.0);
- // set up denominator
- char tTitDenDPhiPt[101] = "DenDPhiPt";
- strncat(tTitDenDPhiPt,title, 100);
- fDPhiPtDenominator = new TH2D(tTitDenDPhiPt,title,aPhiBins*2,-0.5*TMath::Pi(),1.5*TMath::Pi(), 30, 0.0, 3.0);
-
- // set up numerator
- char tTitNumDCosPt[101] = "NumDCosPt";
- strncat(tTitNumDCosPt,title, 100);
- fDCosPtNumerator = new TH2D(tTitNumDCosPt,title,aPhiBins*2,-1.0,1.0, 30, 0.0, 3.0);
- // set up denominator
- char tTitDenDCosPt[101] = "DenDCosPt";
- strncat(tTitDenDCosPt,title, 100);
- fDCosPtDenominator = new TH2D(tTitDenDCosPt,title,aPhiBins*2,-1.0,1.0, 30, 0.0, 3.0);
-
- fDPhiPtNumerator->Sumw2();
- fDPhiPtDenominator->Sumw2();
- fDCosPtNumerator->Sumw2();
- fDCosPtDenominator->Sumw2();
-
-}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff