--- /dev/null
+////////////////////////////////////////////////////////////////////////////////
+// //
+// AliFemtoCorrFctnPairFractions - A correlation function that analyzes //
+// two particle correlations with respect to the azimuthal angle (phi) //
+// and pseudorapidity (eta) difference //
+// //
+// Authors: Malgorzata Janik, majanik@cern.ch //
+// //
+////////////////////////////////////////////////////////////////////////////////
+
+#include "AliFemtoCorrFctnPairFractions.h"
+#include "AliFemtoModelHiddenInfo.h"
+//#include "AliFemtoHisto.hh"
+#include <cstdio>
+#include <TMath.h>
+
+#ifdef __ROOT__
+ClassImp(AliFemtoCorrFctnPairFractions)
+#endif
+
+#define PIH 1.57079632679489656
+#define PIT 6.28318530717958623
+
+//____________________________
+AliFemtoCorrFctnPairFractions::AliFemtoCorrFctnPairFractions(char* title):
+AliFemtoCorrFctn(),
+ fPairFractions(0),
+ fphiL(0),
+ fphiT(0)
+{
+
+ //fphiL = (-(int)(aPhiBins/4)+0.5)*2.*TMath::Pi()/aPhiBins;
+ //fphiT = 2*TMath::Pi()+(-(int)(aPhiBins/4)+0.5)*2.*TMath::Pi()/aPhiBins;
+
+ TString hname = "hPairFraction"; hname+= title;
+ TString htitle = "Pair Fraction "; htitle+= title;
+ fPairFractions = new TH1F(hname.Data(),htitle.Data(), 7, 0, 7);
+ fPairFractions->GetXaxis()->SetBinLabel(1,"#pi#pi, MC");
+ fPairFractions->GetXaxis()->SetBinLabel(2,"KK, MC");
+ fPairFractions->GetXaxis()->SetBinLabel(3,"pp, MC");
+ fPairFractions->GetXaxis()->SetBinLabel(4,"#pi K, MC");
+ fPairFractions->GetXaxis()->SetBinLabel(5,"#pi p, MC");
+ fPairFractions->GetXaxis()->SetBinLabel(6,"Kp, MC");
+ fPairFractions->GetXaxis()->SetBinLabel(7,"Other, MC");
+
+
+ // to enable error bar calculation...
+
+ fPairFractions->Sumw2();
+ fPairFractions->Sumw2();
+}
+
+//____________________________
+AliFemtoCorrFctnPairFractions::AliFemtoCorrFctnPairFractions(const AliFemtoCorrFctnPairFractions& aCorrFctn) :
+ AliFemtoCorrFctn(),
+ fPairFractions(0),
+ fphiL(0),
+ fphiT(0)
+{
+ // copy constructor
+ if (aCorrFctn.fPairFractions)
+ fPairFractions = new TH1F(*aCorrFctn.fPairFractions);
+ else
+ fPairFractions = 0;
+
+ if (aCorrFctn.fPairFractions)
+ fPairFractions = new TH1F(*aCorrFctn.fPairFractions);
+ else
+ fPairFractions = 0;
+
+ fphiL = aCorrFctn.fphiL;
+ fphiT = aCorrFctn.fphiT;
+
+
+}
+//____________________________
+AliFemtoCorrFctnPairFractions::~AliFemtoCorrFctnPairFractions(){
+ // destructor
+ delete fPairFractions;
+ delete fPairFractions;
+}
+//_________________________
+AliFemtoCorrFctnPairFractions& AliFemtoCorrFctnPairFractions::operator=(const AliFemtoCorrFctnPairFractions& aCorrFctn)
+{
+ // assignment operator
+ if (this == &aCorrFctn)
+ return *this;
+
+ if (aCorrFctn.fPairFractions)
+ fPairFractions = new TH1F(*aCorrFctn.fPairFractions);
+ else
+ fPairFractions = 0;
+
+
+ fphiL = aCorrFctn.fphiL;
+ fphiT = aCorrFctn.fphiT;
+
+ return *this;
+}
+//_________________________
+void AliFemtoCorrFctnPairFractions::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 AliFemtoCorrFctnPairFractions::Report(){
+ // create report
+ string stemp = "Pair Fractions Correlation Function Report:\n";
+ char ctemp[100];
+ snprintf(ctemp , 100, "Number of entries in numerator:\t%E\n",fPairFractions->GetEntries());
+ stemp += ctemp;
+ snprintf(ctemp , 100, "Number of entries in denominator:\t%E\n",fPairFractions->GetEntries());
+ stemp += ctemp;
+ // stemp += mCoulombWeight->Report();
+ AliFemtoString returnThis = stemp;
+ return returnThis;
+}
+//____________________________
+void AliFemtoCorrFctnPairFractions::AddRealPair( AliFemtoPair* pair){
+ // add real (effect) pair
+
+ //Applying pair cuts
+ if (fPairCut)
+ if (!fPairCut->Pass(pair)) return;
+
+
+
+ Int_t pdg1=0;
+ AliFemtoModelHiddenInfo *info1 = ( AliFemtoModelHiddenInfo *) pair->Track1()->GetHiddenInfo();
+ if(info1)pdg1 = info1->GetPDGPid();
+
+ Int_t pdg2=0;
+ AliFemtoModelHiddenInfo *info2 = ( AliFemtoModelHiddenInfo *) pair->Track2()->GetHiddenInfo();
+ if(info2)pdg2 = info2->GetPDGPid();
+
+ if(abs(pdg1)==211 && abs(pdg2)==211) //pi pi
+ fPairFractions->Fill(0.5);
+ else if(abs(pdg1)==321 && abs(pdg2)==321)// K K
+ fPairFractions->Fill(1.5);
+ else if(abs(pdg1)==2212 && abs(pdg2)==2212)// p p
+ fPairFractions->Fill(2.5);
+ else if(abs(pdg1)==211 && abs(pdg2)==321)// pi K
+ fPairFractions->Fill(3.5);
+ else if(abs(pdg1)==211 && abs(pdg2)==2212)// pi p
+ fPairFractions->Fill(4.5);
+ else if(abs(pdg1)==321 && abs(pdg2)==2212)//K p
+ fPairFractions->Fill(5.5);
+ else //other
+ fPairFractions->Fill(6.5);
+
+ /*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 phi1 = pair->Track1()->FourMomentum().Phi();
+ double phi2 = pair->Track2()->FourMomentum().Phi();
+ double eta1 = pair->Track1()->FourMomentum().PseudoRapidity();
+ double eta2 = pair->Track2()->FourMomentum().PseudoRapidity();
+
+ double dphi = phi1 - phi2;
+ while (dphi<fphiL) dphi+=PIT;
+ while (dphi>fphiT) dphi-=PIT;
+
+ double deta = eta1 - eta2;
+
+ double px1 = pair->Track1()->Track()->P().x();
+ double py1 = pair->Track1()->Track()->P().y();
+ double px2 = pair->Track2()->Track()->P().x();
+ double py2 = pair->Track2()->Track()->P().y();
+ double pt1 = TMath::Hypot(px1, py1);
+ double pt2 = TMath::Hypot(px2, py2);
+
+
+ double PionMass = 0.13956995;*/
+
+}
+//____________________________
+void AliFemtoCorrFctnPairFractions::AddMixedPair( AliFemtoPair* pair){
+ // add mixed (background) pair
+ if (fPairCut)
+ if (!fPairCut->Pass(pair)) return;
+
+}
+
+
+void AliFemtoCorrFctnPairFractions::WriteHistos()
+{
+ // Write out result histograms
+ fPairFractions->Write();
+}
+
+TList* AliFemtoCorrFctnPairFractions::GetOutputList()
+{
+ // Prepare the list of objects to be written to the output
+ TList *tOutputList = new TList();
+
+ tOutputList->Add(fPairFractions);
+
+
+ return tOutputList;
+
+}
git://git.uio.no / u / mrichter / AliRoot.git / commitdiff