* 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 *
+ * Permission to usec, 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 *
**************************************************************************/
//---------------------------------------------------------------------
-//
-//
+// Jet Finder based on CDF algortihm
+// Charged jet evolution and the underlying event in proton-antiproton collisions at 1.8 TeV
+// Physical Review D, vol. 65, Issue 9, id. 092002
+// http://www.phys.ufl.edu/~rfield/cdf/chgjet/chgjet_intro.html
+// Authors : Adrian.Sevcenco@cern.ch (adriansev@spacescience.ro )
+// Daniel.Felea@cern.ch (dfelea@spacescience.ro)
+// Ciprian.Mihai.Mitu@cern.ch (mcm@spacescience.ro)
//---------------------------------------------------------------------
-#include <vector>
-#include <iostream>
+
+/*
+Changelog
+
+
+
+*/
+
#include <Riostream.h>
+#include <TROOT.h>
+#include <TMath.h>
+#include <TBits.h>
#include <TFile.h>
#include <TCanvas.h>
-#include <TROOT.h>
#include <TClonesArray.h>
#include <TLorentzVector.h>
#include <TH1F.h>
#include <TH2F.h>
-#include <TBits.h>
+#include <TProfile.h>
#include <TArrayF.h>
-#include "AliCdfJetFinder.h"
-#include "AliCdfJetHeader.h"
+#include <TVector2.h>
+
#include "AliJetReader.h"
#include "AliJetReaderHeader.h"
-#include "AliJet.h"
#include "AliAODJet.h"
#include "AliAODEvent.h"
-#include "TProfile.h"
+#include "AliJetFinder.h"
-using namespace std ;
-
-struct varContainer // container for Particle variables
- { // variables of container struct
- Double_t pt; Double_t eta; Double_t phi;
- Int_t njet; // if jets are stored in varContainer nr_jet is multiplicity of jet
- } ;
+#include "AliCdfJetFinder.h"
+#include "AliCdfJetHeader.h"
-ClassImp ( AliCdfJetFinder )
+ClassImp(AliCdfJetFinder)
//______________________________________________________________________________
AliCdfJetFinder::AliCdfJetFinder():
- AliJetFinder(),
- fHistos(0)
+ AliJetFinder(),
+ fHistos(0),
+ fFromAod(0),
+ fAODwrite(0),
+ fAODtracksWrite(0),
+ fAnalyseJets(0),
+ fRefArr (NULL),
+ fNJets(-9999),
+ fNPart(-9999),
+ fRadius(0.7),
+ fMinJetParticles(1),
+ fJetPtCut(0.),
+ fVectParticle(NULL),
+ fVectJet(NULL),
+ fPtArray(NULL),
+ fIdxArray(NULL)
{ /* Constructor */ }
//______________________________________________________________________________
AliCdfJetFinder::~AliCdfJetFinder()
-
{
// destructor
- cout << "Calling the destructor ... " << endl ;
- Reset();
- cout << "Destructor called!" << endl;
}
//______________________________________________________________________________
-void AliCdfJetFinder::CreateOutputObjects(TList *histos)
+void AliCdfJetFinder::CreateOutputObjects(TList * const histos)
{
// Create the list of histograms. Only the list is owned.
fHistos = histos;
- TH1F *h1 = new TH1F ("histo1", "no jets/event", 100, 0,20);
+// gStyle->SetOptStat(11111111);
+
+ TH1F *h1 = new TH1F ("histo1", "Pt distribution of jets", 200, 0,200); // 1GeV/bin
h1->SetStats(kTRUE);
- h1->GetXaxis()->SetTitle("N_{jets}");
- h1->GetYaxis()->SetTitle("#frac{dN}{dN_{jets}}");
+ h1->GetXaxis()->SetTitle("P_{T} of jets");
+ h1->GetYaxis()->SetTitle("Number of jets");
h1->GetXaxis()->SetTitleColor(1);
h1->SetMarkerStyle(kFullCircle);
fHistos->Add(h1);
- TH1F *h2 = new TH1F ("histo2", "no part/leading jet", 40, 0,40);
+ TH1F *h2 = new TH1F ("histo2", "Eta distribution of jets", 240, -1.2,1.2); // 1 unit of rapidity / 100 bin
h2->SetStats(kTRUE);
- h2->GetXaxis()->SetTitle("N_{leading}");
- h2->GetYaxis()->SetTitle("#frac{dN}{dN_{leading}}");
+ h2->GetXaxis()->SetTitle("Eta of jets");
+ h2->GetYaxis()->SetTitle("Number of jets");
h2->GetXaxis()->SetTitleColor(1);
h2->SetMarkerStyle(kFullCircle);
fHistos->Add(h2);
- TProfile * h3 = new TProfile ("histo3","ProfileX of (pt,npart) of leading jets", 25, 0. ,25. , 0.,25. ) ;
+ TH1F *h3 = new TH1F ("histo3", "Phi distribution of jets", 400, -4,4);
h3->SetStats(kTRUE);
- h3->GetXaxis()->SetTitle("P_{t}");
- h3->GetYaxis()->SetTitle("N_{leading}");
+ h3->GetXaxis()->SetTitle("Phi of jets");
+ h3->GetYaxis()->SetTitle("Number of jets");
h3->GetXaxis()->SetTitleColor(1);
h3->SetMarkerStyle(kFullCircle);
fHistos->Add(h3);
- TH1F *h4 = new TH1F ("histo4", "Charge momentum distribution for leading jet", 500, 0 , 5);
+ TH1F *h4 = new TH1F ("histo4", "Multiplicity of jets", 40, 0,40); // 1 unit of multiplicity /bin
+ h4->SetStats(kTRUE);
+ h4->GetXaxis()->SetTitle("Particles in jets");
+ h4->GetYaxis()->SetTitle("Number of jets");
+ h4->GetXaxis()->SetTitleColor(1);
+ h4->SetMarkerStyle(kFullCircle);
fHistos->Add(h4);
- TProfile *h5 = new TProfile ("histo5", "ProfileX of N_{charge} vs dphi leading jet", 100 , 0. , 200. , 0 , 100 );
+ TH1F *h5 = new TH1F ("histo5", "Distribution of jets in events", 100, 0,100);
+ h5->SetStats(kTRUE);
+ h5->GetXaxis()->SetTitle("Number of jets");
+ h5->GetYaxis()->SetTitle("Number of events");
+ h5->GetXaxis()->SetTitleColor(1);
+ h5->SetMarkerStyle(kFullCircle);
fHistos->Add(h5);
- TH1F *h6 = new TH1F ("histo6", " \"Transverse\" Pt Distribution ", 70, 0 , 14);
+ TH1F *h6 = new TH1F ("histo6", "Jet1 Charged Multiplicity Distribution", 30, 0,30);
+ h6->SetStats(kTRUE);
+ h6->GetXaxis()->SetTitle("N_{chg}");
+ h6->GetYaxis()->SetTitle("Number of jets");
+ h6->GetXaxis()->SetTitleColor(1);
+ h6->SetMarkerStyle(kFullCircle);
fHistos->Add(h6);
+ TProfile * h7 = new TProfile ("histo7","N_{chg}(jet1) vs P_{T}(charged jet1)", 200, 0. ,200. , 0.,200. ) ;
+ h7->SetStats(kTRUE);
+ h7->GetXaxis()->SetTitle("P_{T} (charged jet1) (GeV/c)");
+ h7->GetYaxis()->SetTitle("<N_{chg}(jet1)> in 1 GeV/c bin");
+ h7->GetXaxis()->SetTitleColor(1);
+ h7->SetMarkerStyle(kFullCircle);
+ fHistos->Add(h7);
+
+ TH1F *h8 = new TH1F ("histo8", "Charge momentum distribution for leading jet", 120, 0 , 1.2);
+ h8->SetStats(kTRUE);
+ h8->GetXaxis()->SetTitle("Jets");
+ h8->GetYaxis()->SetTitle("Particle distribution");
+ h8->GetXaxis()->SetTitleColor(1);
+ h8->SetMarkerStyle(kFullCircle);
+ fHistos->Add(h8);
+
+ TProfile *h9 = new TProfile ("histo9", "N_{chg} vs the Azimuthal Angle from Charged Jet1", 50 , 0. , 180. , 0 , 20 );
+ h9->SetStats(kTRUE);
+ h9->GetXaxis()->SetTitle("#Delta#phi (degrees)");
+ h9->GetYaxis()->SetTitle("<N_{chg}> in 3.6 degree bin");
+ h9->GetXaxis()->SetTitleColor(1);
+ h9->SetMarkerStyle(kFullCircle);
+ fHistos->Add(h9);
+
+ TProfile *h10 = new TProfile ("histo10", "P_{T} sum vs the Azimuthal Angle from Charged Jet1", 50 , 0. , 180. , 0 , 100 );
+ h10->SetStats(kTRUE);
+ h10->GetXaxis()->SetTitle("#Delta#phi (degrees)");
+ h10->GetYaxis()->SetTitle("<P_{T} sum> in 3.6 degree bin");
+ h10->GetXaxis()->SetTitleColor(1);
+ h10->SetMarkerStyle(kFullCircle);
+ fHistos->Add(h10);
+
+ TH1F *h11 = new TH1F ("histo11", " \"Transverse\" Pt Distribution ", 70, 0 , 14);
+ h11->SetStats(kTRUE);
+ h11->GetXaxis()->SetTitle("P_{T} (GeV/c)");
+ h11->GetYaxis()->SetTitle("dN_{chg}/dP_{T} (1/GeV/c)");
+ h11->GetXaxis()->SetTitleColor(1);
+ h11->SetMarkerStyle(kFullCircle);
+ fHistos->Add(h11);
+
+ TH1F *h20 = new TH1F ("histo20", "Distribution of R in leading jet", 400, 0.,4.);
+ h20->SetStats(kTRUE);
+ h20->GetXaxis()->SetTitle("R [formula]");
+ h20->GetYaxis()->SetTitle("dN/dR");
+ h20->GetXaxis()->SetTitleColor(1);
+ h20->SetMarkerStyle(kFullCircle);
+ fHistos->Add(h20);
+
+ TProfile * h21 = new TProfile ("histo21","N_{chg}(in the event - including jet1) vs P_{T}(charged jet1)", 200, 0., 50. , 0., 30. ) ;
+ h21->SetStats(kTRUE);
+ h21->GetXaxis()->SetTitle("P_{T} (charged jet1) (GeV/c)");
+ h21->GetYaxis()->SetTitle("<N_{chg}(in the event - including jet1)> in 1 GeV/c bin");
+ h21->GetXaxis()->SetTitleColor(1);
+ h21->SetMarkerStyle(kFullCircle);
+ fHistos->Add(h21);
+
+ TProfile * h22 = new TProfile ("histo22","PT_{sum}(in the event - including jet1) vs P_{T}(charged jet1)", 200, 0. , 50. , 0., 50. ) ;
+ h22->SetStats(kTRUE);
+ h22->GetXaxis()->SetTitle("P_{T} (charged jet1) (GeV/c)");
+ h22->GetYaxis()->SetTitle("<PT_{sum}(in the event - including jet1)> in 1 GeV/c bin");
+ h22->GetXaxis()->SetTitleColor(1);
+ h22->SetMarkerStyle(kFullCircle);
+ fHistos->Add(h22);
+
+ TProfile * h21Toward = new TProfile ("histo21_toward","N_{chg}(in the event - including jet1) vs P_{T}(charged jet1)", 200, 0., 50. , 0., 12. ) ;
+ h21Toward->SetStats(kTRUE);
+ h21Toward->GetXaxis()->SetTitle("P_{T} (charged jet1) (GeV/c)");
+ h21Toward->GetYaxis()->SetTitle("<N_{chg}(in the event - including jet1)> in 1 GeV/c bin");
+ h21Toward->GetXaxis()->SetTitleColor(1);
+ h21Toward->SetMarkerStyle(kFullCircle);
+ fHistos->Add(h21Toward);
+
+ TProfile * h21Transverse = new TProfile ("histo21_transverse","N_{chg}(in the event - including jet1) vs P_{T}(charged jet1)", 200, 0., 50. , 0., 12. ) ;
+ h21Transverse->SetStats(kTRUE);
+ h21Transverse->GetXaxis()->SetTitle("P_{T} (charged jet1) (GeV/c)");
+ h21Transverse->GetYaxis()->SetTitle("<N_{chg}(in the event - including jet1)> in 1 GeV/c bin");
+ h21Transverse->GetXaxis()->SetTitleColor(1);
+ h21Transverse->SetMarkerStyle(kFullCircle);
+ fHistos->Add(h21Transverse);
+
+ TProfile * h21Away = new TProfile ("histo21_away","N_{chg}(in the event - including jet1) vs P_{T}(charged jet1)", 200, 0., 50. , 0., 12. ) ;
+ h21Away->SetStats(kTRUE);
+ h21Away->GetXaxis()->SetTitle("P_{T} (charged jet1) (GeV/c)");
+ h21Away->GetYaxis()->SetTitle("<N_{chg}(in the event - including jet1)> in 1 GeV/c bin");
+ h21Away->GetXaxis()->SetTitleColor(1);
+ h21Away->SetMarkerStyle(kFullCircle);
+ fHistos->Add(h21Away);
+
+ TProfile * h22Toward = new TProfile ("histo22_toward","PT_{sum}(in the event - including jet1) vs P_{T}(charged jet1)", 200, 0. , 50. , 0., 50. ) ;
+ h22Toward->SetStats(kTRUE);
+ h22Toward->GetXaxis()->SetTitle("P_{T} (charged jet1) (GeV/c)");
+ h22Toward->GetYaxis()->SetTitle("<PT_{sum}(in the event - including jet1)> in 1 GeV/c bin");
+ h22Toward->GetXaxis()->SetTitleColor(1);
+ h22Toward->SetMarkerStyle(kFullCircle);
+ fHistos->Add(h22Toward);
+
+ TProfile * h22Transverse = new TProfile ("histo22_transverse","PT_{sum}(in the event - including jet1) vs P_{T}(charged jet1)", 200, 0. , 50. , 0., 50. ) ;
+ h22Transverse->SetStats(kTRUE);
+ h22Transverse->GetXaxis()->SetTitle("P_{T} (charged jet1) (GeV/c)");
+ h22Transverse->GetYaxis()->SetTitle("<PT_{sum}(in the event - including jet1)> in 1 GeV/c bin");
+ h22Transverse->GetXaxis()->SetTitleColor(1);
+ h22Transverse->SetMarkerStyle(kFullCircle);
+ fHistos->Add(h22Transverse);
+
+ TProfile * h22Away = new TProfile ("histo22_away","PT_{sum}(in the event - including jet1) vs P_{T}(charged jet1)", 200, 0. , 50. , 0., 50. ) ;
+ h22Away->SetStats(kTRUE);
+ h22Away->GetXaxis()->SetTitle("P_{T} (charged jet1) (GeV/c)");
+ h22Away->GetYaxis()->SetTitle("<PT_{sum}(in the event - including jet1)> in 1 GeV/c bin");
+ h22Away->GetXaxis()->SetTitleColor(1);
+ h22Away->SetMarkerStyle(kFullCircle);
+ fHistos->Add(h22Away);
+
+ TH1F *h23Toward = new TH1F ("histo23_toward","'Toward' Pt Distribution of charged particles", 200, 0., 14.);
+ h23Toward->SetStats(kTRUE);
+ h23Toward->GetXaxis()->SetTitle("P_{T} (charged) (GeV/c)");
+ h23Toward->GetYaxis()->SetTitle("dN_{chg}/dP_{T} (1/GeV/c)");
+ h23Toward->GetXaxis()->SetTitleColor(1);
+ h23Toward->SetMarkerStyle(kFullCircle);
+ fHistos->Add(h23Toward);
+
+ TH1F *h23Transverse = new TH1F ("histo23_transverse","'Transverse' Pt Distribution of charged particles", 200, 0., 14.);
+ h23Transverse->SetStats(kTRUE);
+ h23Transverse->GetXaxis()->SetTitle("P_{T} (charged) (GeV/c)");
+ h23Transverse->GetYaxis()->SetTitle("dN_{chg}/dP_{T} (1/GeV/c)");
+ h23Transverse->GetXaxis()->SetTitleColor(1);
+ h23Transverse->SetMarkerStyle(kFullCircle);
+ fHistos->Add(h23Transverse);
+
+ TH1F *h23Away = new TH1F ("histo23_away","'Away' Pt Distribution of charged particles", 200, 0., 14.);
+ h23Away->SetStats(kTRUE);
+ h23Away->GetXaxis()->SetTitle("P_{T} (charged) (GeV/c)");
+ h23Away->GetYaxis()->SetTitle("dN_{chg}/dP_{T} (1/GeV/c)");
+ h23Away->GetXaxis()->SetTitleColor(1);
+ h23Away->SetMarkerStyle(kFullCircle);
+ fHistos->Add(h23Away);
+
+ TProfile * h24 = new TProfile ("histo24","Jet1 Size vs P_{T}(charged jet1)", 200, 0., 50. , 0., 0.5) ;
+ h24->SetStats(kTRUE);
+ h24->GetXaxis()->SetTitle("P_{T} (charged jet1) (GeV/c)");
+ h24->GetYaxis()->SetTitle("<R(chgjet1)> in 1 GeV/c bin");
+ h24->GetXaxis()->SetTitleColor(1);
+ h24->SetMarkerStyle(kFullCircle);
+ fHistos->Add(h24);
+
+ TProfile * h25 = new TProfile ("histo25","Jet1 Size vs P_{T}(charged jet1)", 200, 0., 50. , 0., 0.5) ;
+ h25->SetStats(kTRUE);
+ h25->GetXaxis()->SetTitle("P_{T} (charged jet1) (GeV/c)");
+ h25->GetYaxis()->SetTitle("<R(chgjet1)> in 1 GeV/c bin");
+ h25->GetXaxis()->SetTitleColor(1);
+ h25->SetMarkerStyle(kFullCircle);
+ fHistos->Add(h25);
+
+ TProfile *h26 = new TProfile ("histo26", "N_{chg} vs the Distance R from Charged Jet1", 30, 0., 0.6, 0., 0.8);
+ h26->SetStats(kTRUE);
+ h26->GetXaxis()->SetTitle("Distance R");
+ h26->GetYaxis()->SetTitle("<N_{chg}> in 0.02 bin");
+ h26->GetXaxis()->SetTitleColor(1);
+ h26->SetMarkerStyle(kFullCircle);
+ fHistos->Add(h26);
+
+ TProfile *h27 = new TProfile ("histo27", "N_{chg} vs the Distance R from Charged Jet1", 30, 0., 0.6, 0., 0.8);
+ h27->SetStats(kTRUE);
+ h27->GetXaxis()->SetTitle("Distance R");
+ h27->GetYaxis()->SetTitle("<N_{chg}> in 0.02 bin");
+ h27->GetXaxis()->SetTitleColor(1);
+ h27->SetMarkerStyle(kFullCircle);
+ fHistos->Add(h27);
+
+ TProfile *h28 = new TProfile ("histo28", "PT_{sum} vs the Distance R from Charged Jet1", 30, 0., 0.6, 0.01, 10.);
+ h28->SetStats(kTRUE);
+ h28->GetXaxis()->SetTitle("Distance R");
+ h28->GetYaxis()->SetTitle("<PT_{sum} (GeV/c)> in 0.02 bin");
+ h28->GetXaxis()->SetTitleColor(1);
+ h28->SetMarkerStyle(kFullCircle);
+ fHistos->Add(h28);
+
+ TProfile *h29 = new TProfile ("histo29", "PT_{sum} vs the Distance R from Charged Jet1", 30, 0., 0.6, 0.01, 10.);
+ h29->SetStats(kTRUE);
+ h29->GetXaxis()->SetTitle("Distance R");
+ h29->GetYaxis()->SetTitle("<PT_{sum} (GeV/c)> in 0.02 bin");
+ h29->GetXaxis()->SetTitleColor(1);
+ h29->SetMarkerStyle(kFullCircle);
+ fHistos->Add(h29);
-//cout << "CreateOutputObjetcs done!" << endl ;
}
//______________________________________________________________________________
void AliCdfJetFinder::FindJets()
+{
+// Jet Algorithm:
+// * Order all charged particles according to their PT.
+// * Start with the highest PT particle and include in the "jet" all particles within the "radius" R = 0.7
+// (considering each particle in the order of decreasing PT and recalculating the centroid of the jet after
+// each new particle is added to the jet).
+// * Go to the next highest PT particle (not already included in a jet) and include in the "jet" all particles
+// (not already included in a jet) within the radius R =0.7.
+// * Continue until all particles are in a "jet".
+ if (fDebug) { printf("AliCDJetfinder::FindJets() %d \n", __LINE__ ); }
+AliCdfJetHeader *header = (AliCdfJetHeader*)fHeader;
+
+ if (header)
+ {
+ fDebug = header->GetDebug();
+ fAODwrite = header->IsAODwrite() ; // write jets to AOD
+ fAODtracksWrite = header->IsAODtracksWrite() ; // write jet tracks to AOD
+ fRadius = header->GetRadius(); // get Radius from jet finder header
+ fMinJetParticles = header->GetMinPartJet (); // get minimum multiplicity of an jet
+ fJetPtCut = header->GetJetPtCut (); // get minimum of jet pt
+ }
+ else
+ { cout << "Header not found" << endl; return; }
+
+if (fAODwrite)
{
- //cout << "Begining of FindJets ..." << endl ;
- //1) Fill 1 array with momentum and initialise another array for indexes
- //2) Run algorithm
- // 2.1) Sort momentum array
- // 2.2) loop over arrays of TLorentzVectors
- // 2.3) flag as a possible jet
- //3) fill AliAODJet list
- Bool_t debug = kFALSE;
-
- TRefArray *refs = 0;
- Bool_t fromAod = !strcmp(fReader->ClassName(),"AliJetAODReader");
- if (fromAod) { refs = fReader->GetReferences(); }
-
- AliCdfJetHeader *header = (AliCdfJetHeader*)fHeader;
- Double_t radius = header->GetRadius(); // get Radius from header
-// cout << "Radius is : " << radius << endl ;
+ fFromAod = !strcmp(fReader->ClassName(),"AliJetAODReader");
+ if (fFromAod) { fRefArr = fReader->GetReferences(); }
+ }
+
+InitData();
+
+if (!fNPart) { if (fDebug) {cout << "entries = 0 ; Event empty !!!" << endl ;} return; } // if event empty then exit
+
+FindCones();
+
+ComputeConesWeight();
+
+if (fAODwrite) {
+ if(fDebug)cout << "Writing AOD" << endl ;
+ WriteJets();
+ }
+
+if (fAnalyseJets) AnalizeJets();
+
+Clean();
+
+}
+
+//______________________________________________________________________________
+void AliCdfJetFinder::InitData()
+{
+// initialisation of variables and data members
TClonesArray * vectArray = fReader->GetMomentumArray() ;
if ( vectArray == 0 ) { cout << "Could not get the momentum array" << endl; return; }
- Int_t nPart = vectArray->GetEntries() ; // n particles in this event;
- if ( nPart == 0 ) { if (debug) cout << "entries = 0 ; Event empty !!!" << endl ; return; }
+ fNPart = vectArray->GetEntries() ; // n particles in this event;
- Int_t nJets = 0; // n jets in this event
+ if ( fNPart == 0 ) { return ; } // if event empty then exit
- fJets->SetNinput ( nPart ) ; // number of input objects
+ fVectParticle = new varContainer* [fNPart]; // container for Particles
- varContainer **vectParticle = new varContainer* [nPart]; // container for Particles
- varContainer **vectJet = new varContainer* [nPart]; // container for Jets
-
- Double_t *ptArray = new Double_t [nPart] ; // momentum array
- Int_t *idxArray = new Int_t [nPart] ; // index array of sorted pts
+ fPtArray = new Double_t [fNPart] ; // momentum array
+ fIdxArray = new Int_t [fNPart] ; // index array of sorted pts
// initialisation of momentum and index arrays
- // cout << "Filling idxArray && momArray for sorting " << endl;
- for ( Int_t i = 0 ; i < nPart ; i++ )
- {// SORTING STEP :: ptArray with data from TClonesArray of TLorentzVector
+ for ( Int_t i = 0 ; i < fNPart ; i++ )
+ {// SORTING STEP :: fPtArray with data from TClonesArray of TLorentzVector
TLorentzVector * lv = (TLorentzVector*) vectArray->At(i);
- // INITIALISATION of local arrays for temporary storage
+
+ // INITIALISATION of local arrays for temporary storage
varContainer *aParticle = new varContainer;
aParticle->pt = lv->Pt();
aParticle->eta = lv->Eta();
- aParticle->phi = lv->Phi();
- aParticle->njet = -1;
- vectParticle[i] = aParticle;
+ aParticle->phi = TVector2::Phi_mpi_pi ( lv->Phi() ); // normalize to -pi,pi
+ aParticle->njet = -999;
+
+ fVectParticle[i] = aParticle; // vector of Particles
// initializing arrays
- idxArray [i] = 0 ;
- ptArray [i] = aParticle->pt ;
+ fIdxArray [i] = -999 ;
+ fPtArray [i] = aParticle->pt ;
}
- TMath::Sort ( nPart, ptArray, idxArray ) ; // get a sorted array of indexes with size = size of TClonesArray
+ TMath::Sort ( fNPart, fPtArray, fIdxArray ) ; // get a sorted array of indexes with TClonesArray.Size()
- Double_t pt_jet = 0. ,
- eta_jet = 0. ,
- phi_jet = 0. ,
- sum_eta = 0. ,
- sum_phi = 0. ; // jet variables
+}
- Int_t idxPtSort = 0 , // index of array of sorted pt indexes
- npartJet = 0 ; // number of particles in curent jet
- TBits lkup_table ( nPart ) ; // bit container of size npart
+//______________________________________________________________________________
+void AliCdfJetFinder::FindCones()
+{
+// parsing of particles in event and estlabish jets (label them with jet index)
- while ( lkup_table.CountBits(0) != (UInt_t)nPart )
- { // loop over particles in event until all flags are set
- UInt_t first_non_flagged = lkup_table.FirstNullBit(0) ; // set the index to the first NON flagged bit ; less conditions
+ Double_t ptSeed = 0. , etaSeed = 0. , phiSeed = 0. ; // leading particle params
+ Double_t pttmp = 0. , etatmp = 0. , phitmp = 0. ; // temporary variables to be used in various calculations
+ Double_t deta = 0. , dphi = 0. , dcomputed = 0. ;
+ Bool_t injet = 0 ;
- npartJet = 0 ; // reseting number of particles in jet
- pt_jet = 0.;
- eta_jet = 0.;
- phi_jet = 0.;
- sum_eta = 0.;
- sum_phi = 0.;
+ fNJets = -1 ; // n jets in this event
+ Int_t idxPtSort = -1 ; // index of array of sorted pt indexes
- for ( UInt_t i_part = first_non_flagged ; i_part < (UInt_t)nPart ; i_part++ )
- {// iteration over particles in event
- // reseting variables
+ if (fDebug) { cout << "\n\n\n\n\n\n------------------\nBegin Event Analysis\n------------------\n\n" << endl ;}
- // the loop is done over sorted array of pt
- idxPtSort = idxArray[i_part] ; // index entry of TLorentzVector from vect_arr
+ if(fDebug)cout << "fNPart = " << fNPart << endl;
+
+ TBits lkupTable ( fNPart ) ; // bit container ; 1-to-1 corespondence with fIdxArray
- if ( lkup_table.TestBitNumber(i_part) == 1 ) { continue; } // if 4vector is already flagged skip it
+ while ( lkupTable.CountBits() != (UInt_t)fNPart )
+ { // loop over particles in event until all flags are set
+ UInt_t firstnonflagged = lkupTable.FirstNullBit() ; // set the index to the first NON flagged bit ; less conditions
- //taking info from vectParticle ;
- Double_t pt_tmp = vectParticle[idxPtSort]->pt ;
- Double_t eta_tmp = vectParticle[idxPtSort]->eta ;
- Double_t phi_tmp = vectParticle[idxPtSort]->phi ;
- if (debug) printf(" particle %d: pt=%g\n", i_part, pt_tmp);
+ if(fDebug)cout << "\n\nfirst_non_flagged : " << firstnonflagged << endl;
+
+ ++fNJets; // incrementing the jet counter
+ if (fDebug) { printf("JET %d \n", fNJets); }
+
+ ptSeed = 0. ; etaSeed = 0. ; phiSeed = 0. ; // reseting leading particle params
+
+ for ( UInt_t ipart = firstnonflagged ; ipart < (UInt_t)fNPart ; ipart++ )
+ {// iteration over particles in event
+ // the loop is done over sorted array of pt
+ idxPtSort = fIdxArray[ipart] ; // index of particle ! fIdxArray is an index list pt sorted
- // all angles are expressed in rad
+ if ( lkupTable.TestBitNumber(ipart) ) { continue; } // if 4vector is already flagged skip it
- if ( TMath::Abs(eta_tmp) > 0.9 )
- {
- lkup_table.SetBitNumber ( i_part, 1 ) ; // mark particle as used to be skipped
- continue ;
- }
+ //init computed and used vars
+ pttmp = 0. ; etatmp = 0. ; phitmp = 0. ;
+ deta = 0. ; dphi = 0. ; dcomputed = 0. ; injet = 0 ;
+ //taking info from fVectParticle ;
+ pttmp = fVectParticle[idxPtSort]->pt ;
+ etatmp = fVectParticle[idxPtSort]->eta ;
+ phitmp = fVectParticle[idxPtSort]->phi ;
- if ( i_part == first_non_flagged )
+ if ( ipart == firstnonflagged )
{// this is first particle in event; leading particle
- // initialise the jet variables with leading particle numbers
+ // begin the search around this particle in a fRadius
- npartJet++; // incrementing counter of particles in jet (nparJet == 1) (leading particle)
- pt_jet = pt_tmp ;
- eta_jet = eta_tmp ;
- phi_jet = phi_tmp ;
- if (debug) printf(" first part in jet: npartjet=%d pt_jet=%g\n", npartJet, pt_jet);
+ // CENTRE OF THE JET
+ ptSeed = pttmp ; etaSeed = etatmp ; phiSeed = phitmp ; // seeding the jet with first particle idxPtSort
- lkup_table.SetBitNumber ( i_part, 1 ) ; // flag the 4vector
+ lkupTable.SetBitNumber ( ipart ) ; // flag the index of particle in lkup_table
+ fVectParticle[idxPtSort]->njet = fNJets ; // associate particle with current jet number
- vectParticle[idxPtSort]->njet = nJets ; // associate particle with current jet
+ if (fDebug) { printf("\nLeading particle :: particle index = %d ; at sorted index %d ; in jet %d \n", idxPtSort, ipart, fNJets); }
+ if (fDebug) { printf("pt= %g ; eta= %g ; phi = %g \n", pttmp, etatmp, phitmp) ; }
+ if (fDebug) { lkupTable.Print() ;}
continue ; // skip to next particle
}
// condition to be in jet
- Double_t deta = eta_jet - eta_tmp ;
- Double_t dphi = phi_jet - phi_tmp ;
+ deta = etatmp - etaSeed ;
+ dphi = TVector2::Phi_mpi_pi (phitmp - phiSeed) ; // computing dphi and normalizing to (0,2pi) interval in one step
- if ( dphi < -TMath::Pi() ) { dphi = -dphi - 2.0 * TMath::Pi() ; }
- if ( dphi > TMath::Pi() ) { dphi = -dphi + 2.0 * TMath::Pi() ; }
+ dcomputed = TMath::Hypot(deta, dphi) ; // Distance(fRadius) to (eta,phi) seed
- Double_t r_computed = TMath::Sqrt ( deta * deta + dphi * dphi ) ;
+ injet = ( ( fRadius - dcomputed ) >= 0.000000001 ) ? 1 : 0 ; // if r_computed is within jet_r in_jet == 1 else 0
- Bool_t in_jet = ( r_computed <= radius ) ? 1 : 0 ; // if r_computed is within jet_r in_jet == 1 else 0
-
- if ( in_jet )
+ if ( injet )
{ // calculus of jet variables
- npartJet++; // incrementing counter of particles in jet
+ lkupTable.SetBitNumber ( ipart ) ; // flag the index of particle in lkup_table
+ fVectParticle[idxPtSort]->njet = fNJets ; // setting in particle list the associated jet
- pt_jet += pt_tmp ;
- sum_eta += (pt_tmp * eta_tmp) ;
- sum_phi += (pt_tmp * phi_tmp) ;
- eta_jet = sum_eta / pt_jet ;
- phi_jet = sum_phi / pt_jet ;
+ if (fDebug) { printf("\njet particle :: particle index = %d ; at sorted index %d ; in jet %d ; found at radius %g ; \n", idxPtSort, ipart, fNJets, dcomputed); }
+ if (fDebug) { printf("pt= %g ; eta= %g ; phi = %g \n", pttmp, etatmp, phitmp) ; }
+ if (fDebug) { lkupTable.Print() ;}
- lkup_table.SetBitNumber ( i_part, 1 ) ; // flag the 4vector
- vectParticle[idxPtSort]->njet = nJets ; // setting in particle list the associated jet
- if (debug) printf(" particle added to jet: npartjet=%d pt_jet=%g\n", npartJet, pt_jet);
continue ; // skip to next particle
}
}
- // end of iteration over event; one jet definition
-
- varContainer *aJet = new varContainer;
- aJet->pt = pt_jet;
- aJet->eta = eta_jet;
- aJet->phi = phi_jet;
- aJet->njet = npartJet;
- vectJet[nJets++] = aJet; // store the jet (from jet 0 to nJets-1 )
- if (debug) printf("=== current jet: npartjet=%d ptjet=%g\n", npartJet,pt_jet);
+ // end of iteration over event; one jet definition of content ; jet parameters to be computed later
+ }
+}
- // writing aod information
- Double_t px = 0., py = 0., pz = 0., en = 0.; // convert to 4-vector
- px = pt_jet * TMath::Cos ( phi_jet ) ;
- py = pt_jet * TMath::Sin ( phi_jet ) ;
- pz = pt_jet / TMath::Tan ( 2.0 * TMath::ATan ( TMath::Exp ( -eta_jet ) ) ) ;
- en = TMath::Sqrt ( px * px + py * py + pz * pz );
- if (npartJet<2) continue; // do not add jets with less than 2 particles
- if (debug) cout << "Jet 4vect : " << "px = " << px << " ; py = " << py << " ; pz = " << pz << " ; E = " << en << endl;
+//______________________________________________________________________________
+void AliCdfJetFinder::ComputeConesWeight()
+{
+// computing of jets Pt, Eta and Phi (centre of weight in (eta,phi) plane)
+// rescan the vector of particles by identify them by asociate jet number for computing of weight centre
- AliAODJet jet (px, py, pz, en);
-// cout << "Printing jet " << endl;
- if (debug) jet.Print("");
+// JET CONTAINER
+fVectJet = new varContainer* [fNJets]; // container for Jets
-// cout << "Adding jet ... " ;
- AddJet(jet);
-// cout << "added \n" << endl;
+Double_t ptJet, ptJet2 , etaJet , phiJet ; Int_t npartJet ;
+Double_t pttmp = 0. , etatmp = 0. , phitmp = 0. ; // temporary variables to be used in various calculations
+Int_t idxPtSort = -999 ; // index of array of sorted pt indexes
-// if (fromAod)
-// {
-// for (Int_t parts = 0; parts < nPart; parts++ )
-// { if (idx_jetT[parts] == nr_jet) {jet.AddTrack(refs->At(parts));} }
-// }
+for( Int_t jet = 0 ; jet < fNJets ; jet++ )
+ {
+ if (fDebug) { printf("\n\n--- Computing weight of Jet %d \n", jet ); }
+ npartJet = 0 ; ptJet = 0. ; etaJet = 0. ; phiJet = 0. ; // reset variables for a new computation
+ for ( Int_t ipart = 0 ; ipart < fNPart ; ipart++ )
+ {// iteration over particles in event
+ // the loop is done over sorted array of pt
+ idxPtSort = fIdxArray[ipart] ; // index of particle ! fIdxArray is an index list pt sorted
- }
- // end of while loop over particles ; ends when all particles were flagged as used and all jets defined
-
- /////////////////////////////////
- //// END OF EVENT PARSING ///
- /////////////////////////////////
-
- Int_t *jets_pt_idx = 0; // sorted array of jets pt
- Double_t *jets_pt = 0; // array of jets pts
- Int_t leading_jet_index = -1 ; // index of leading jet from vectJet
- Int_t part_leadjet = 0 ; // number of particles in leading jet
- Double_t pt_leadjet = 0. ; // pt of leading jet
- Double_t eta_leadjet = 0. ; // eta of leading jet
- Double_t phi_leadjet = 0. ; // phi of leading jet
- Int_t * idx_leadjet_part = 0;
-
- if (nJets > 0)
- { // if there is at least one jet in event
- jets_pt_idx = new Int_t [nJets] ;
- jets_pt = new Double_t [nJets] ;
-
- // filing the idx_ptjets array
- if (debug) printf("List of unsorted jets:\n");
- for( Int_t i = 0 ; i < nJets ; i++ )
+ if ( fVectParticle[idxPtSort]->njet == jet )
{
- jets_pt_idx [i] = 0 ;
- jets_pt [i] = vectJet[i]->pt ;
- if (debug) cout << " jet found: " << i << " npartjet=" << vectJet[i]->njet << " jets_pt[i]= " << jets_pt [i] << endl;
+ ++npartJet; // incrementing the counter of jet particles
+
+ //taking info from fVectParticle ;
+ pttmp = fVectParticle[idxPtSort]->pt ;
+ etatmp = fVectParticle[idxPtSort]->eta ;
+ phitmp = TVector2::Phi_mpi_pi (fVectParticle[idxPtSort]->phi) ;
+
+// jet_new_angular_coordinate = jet_old_angular_coordinate * jet_old_pt / jet_new_pt +
+// part[i]_angular_coordinate * part[i]_pt/jet_new_pt
+
+ ptJet2 = ptJet + pttmp ;
+
+ etaJet = etaJet * ptJet / ptJet2 + etatmp * pttmp / ptJet2 ;
+ phiJet = phiJet * ptJet / ptJet2 + phitmp * pttmp / ptJet2 ;
+
+ ptJet = ptJet2 ;
+
}
- TMath::Sort ( nJets, jets_pt , jets_pt_idx ) ; // sorting pt of jets
+ // add a particle and recalculation of centroid
+ }
+ // end of 1 jet computation
+
+ varContainer *aJet = new varContainer; // Jet container
+ aJet->pt = ptJet; aJet->eta = etaJet; aJet->phi = phiJet; aJet->njet = npartJet; // setting jet vars in container
+ fVectJet[jet] = aJet; // store the number of the jet(fNJets) and increment afterwards
+
+ if (fDebug) { printf ("=== current jet %d : npartjet= %d ; pt_jet= %g ; eta_jet = %g ; phi_jet = %g \n\n\n",
+ jet, npartJet, ptJet, etaJet, phiJet ) ; }
+
+ }
+ //end loop over jets
+
+}
+
+
+//______________________________________________________________________________
+void AliCdfJetFinder::WriteJets()
+{
+// Writing AOD jets and AOD tracks
+
+for( Int_t jetnr = 0 ; jetnr < fNJets ; jetnr++ )
+ {
+ Double_t pt = 0., eta = 0., phi = 0., // jet variables
+ px = 0., py = 0., pz = 0., en = 0.; // convert to 4-vector
+ pt = fVectJet[ jetnr ]->pt ; // pt of jet
+ eta = fVectJet[ jetnr ]->eta ; // eta of jet
+ phi = fVectJet[ jetnr ]->phi ; // phi of jet
+
+ px = pt * TMath::Cos ( phi ) ;
+ py = pt * TMath::Sin ( phi ) ;
+ pz = pt / TMath::Tan ( 2.0 * TMath::ATan ( TMath::Exp ( -eta ) ) ) ;
+ en = TMath::Sqrt ( px * px + py * py + pz * pz );
+
+ AliAODJet jet (px, py, pz, en);
+
+
+ if (fDebug) jet.Print("");
- // selection of leading jet with nr of particles > 1
- for( Int_t i = 0 ; i < nJets ; i++ )
+ if (fFromAod && fAODtracksWrite)
+ {
+ for ( Int_t jetTrack = 0; jetTrack < fNPart; jetTrack++ )
+ { if ( fVectParticle[jetTrack]->njet == jetnr ) { jet.AddTrack(fRefArr->At(jetTrack)) ; } }
+ }
+ // tracks REFs written in AOD
+ AddJet(jet);
+ }
+//jets vector parsed and written to AOD
+}
+
+
+//______________________________________________________________________________
+void AliCdfJetFinder::AnalizeJets()
+{
+// analyzing of jets and filling of histograms
+
+ const Double_t kPI = TMath::Pi();
+
+ //persistent pointer to histo20
+ TH1F *hR = (TH1F*)fHistos->FindObject("histo20");
+
+ Int_t *jetsptidx = 0; // sorted array of jets pt
+ Double_t *jetspt = 0; // array of jets pts
+ Int_t leadingjetindex = -1 ; // index of leading jet from fVectJet
+ Int_t partleadjet = 0 ; // number of particles in leading jet
+ Double_t ptleadjet = 0. ; // pt of leading jet
+ Double_t etaleadjet = 0. ; // eta of leading jet
+ Double_t phileadjet = 0. ; // phi of leading jet
+
+ jetsptidx = new Int_t [fNJets] ;
+ jetspt = new Double_t [fNJets] ;
+
+//________________________________________________________________________________________
+// Jet sorting and finding the leading jet that coresponds to cuts in pt and multiplicity
+//________________________________________________________________________________________
+
+ // filing the idx_ptjets array
+ if (fDebug) printf("List of unsorted jets:\n");
+ for( Int_t i = 0 ; i < fNJets ; i++ )
+ {
+ jetsptidx [i] = 0 ;
+ jetspt [i] = fVectJet[i]->pt ;
+ if (fDebug) { cout << " jet found: " << i << " npartjet=" << fVectJet[i]->njet << " ; jets_pt = " << jetspt[i] << endl; }
+ }
+
+ TMath::Sort ( fNJets, jetspt , jetsptidx ) ; // sorting pt of jets
+
+ // selection of leading jet
+ // looping over jets searching for __first__ one that coresponds to cuts
+ for( Int_t i = 0 ; i < fNJets ; i++ )
+ {
+ if ( ( fVectJet[ jetsptidx[i] ]->njet >= fMinJetParticles ) && ( fVectJet[ jetsptidx[i] ]->pt >= fJetPtCut ) )
{
- if ( vectJet[ jets_pt_idx[i] ]->njet > 1 )
- {
- leading_jet_index = jets_pt_idx[i] ;
- part_leadjet = vectJet[ leading_jet_index ]->njet ; // number of particles in leading jet
- pt_leadjet = vectJet[ leading_jet_index ]->pt ; // pt of leading jet
- eta_leadjet = vectJet[ leading_jet_index ]->eta ; // eta of leading jet
- phi_leadjet = vectJet[ leading_jet_index ]->phi ; // phi of leading jet
-
- cout << "Leading jet: npart = " << part_leadjet
- << " ; pt = " << pt_leadjet
- << " ; phi = " << phi_leadjet
- << " ; eta = " << eta_leadjet
- << endl ;
- break ;
- }
+ leadingjetindex = jetsptidx[i] ;
+ partleadjet = fVectJet[ leadingjetindex ]->njet ; // number of particles in leading jet
+ ptleadjet = fVectJet[ leadingjetindex ]->pt ; // pt of leading jet
+ etaleadjet = fVectJet[ leadingjetindex ]->eta ; // eta of leading jet
+ phileadjet = fVectJet[ leadingjetindex ]->phi ; // phi of leading jet
+
+ if (fDebug)
+ { printf("Leading jet %d : npart= %d ; pt= %g ; eta = %g ; phi = %g \n", leadingjetindex, partleadjet, ptleadjet, etaleadjet, phileadjet ); }
+
+ break ;
}
- // end of selection of leading jet
+ }
+ // end of selection of leading jet
+
+
+
+//////////////////////////////////////////////////
+//// Computing of values used in histograms
+//////////////////////////////////////////////////
- // Filling an array with indexes of leading jet particles
- idx_leadjet_part = new Int_t [part_leadjet] ;
- Int_t counter = 0;
- if (debug) printf(" Searching particles with jet index %d\n", leading_jet_index);
- for( Int_t i = 0 ; i <nPart ; i++ )
- {
- if ( vectParticle[i]->njet == leading_jet_index )
- {
- idx_leadjet_part[counter++] = i ;
- if (debug) cout << " " << counter-1 << ": index=" << i << " pt=" << vectParticle[i]->pt << endl;
- }
- }
- if ( (counter-1) > part_leadjet ) { cout << " Counter > part_leadjet !!!!" << endl;}
+//___________________________________________________________________________
+// pt_sum of all particles in event
+//___________________________________________________________________________
+cout << "Computing sum of pt in event" << endl ;
+Double_t ptsumevent = 0.;
+for ( Int_t i = 0 ; i< fNPart ; i++ ) { ptsumevent += fVectParticle[i]->pt ; }
+printf ("Sum of all Pt in event : pt_sum_event = %g", ptsumevent) ;
- }
- // end of loop over DETECTED jets
+//___________________________________________________________________________
+// Filling an array with indexes of leading jet particles
+//___________________________________________________________________________
+Int_t * idxpartLJ = new Int_t [partleadjet] ;
+Int_t counterpartleadjet = 0;
+cout << "Filling an array with indexes of leading jet particles" << endl;
+for( Int_t i = 0 ; i < fNPart ; i++ )
+ {
+ if ( fVectParticle[i]->njet == leadingjetindex )
+ { idxpartLJ[counterpartleadjet++] = i ; }
+ }
+
+if ( (counterpartleadjet-1) > partleadjet ) { cout << " Counter_part_lead_jet > part_leadjet !!!!" << endl;}
+
+//___________________________________________________________________________
// Calculus of part distribution in leading jet
+//___________________________________________________________________________
Double_t z = 0. ;
-Double_t *z_part_ljet = new Double_t [ part_leadjet ] ; // array of z of particles in leading jet
-for( Int_t j = 0 ; j < part_leadjet ; j++ )
+Double_t *zpartljet = new Double_t [ partleadjet ] ; // array of z of particles in leading jet
+
+cout << "Entering loop of calculus of part distribution in leading jet" << endl ;
+
+for( Int_t j = 0 ; j < partleadjet ; j++ )
{
- Double_t z_j = vectParticle[idx_leadjet_part[j]]->pt ;
- z = z_j / pt_leadjet ;
- z_part_ljet [j] = z ;
- cout << "idx_leadjet_part[j] = " << idx_leadjet_part[j]
- << " p of particle = " << z_j
- << " pt lead jet = " << pt_leadjet
+ Double_t zj = fVectParticle[idxpartLJ[j]]->pt ;
+ z = zj / ptleadjet ;
+ zpartljet [j] = z ;
+ cout << "idx_leadjet_part[j] = " << idxpartLJ[j]
+ << " p of particle = " << zj
+ << " pt lead jet = " << ptleadjet
<< " Z = " << z << endl;
}
-/*
-Double_t dphi_partLJ = 0. ;
-Double_t dphiArray [nPart];
-for( Int_t part = 0 ; part < nPart ; part++ )
+//___________________________________________________________________________
+// array of delta phi's between phi of particles and leading jet phi
+//___________________________________________________________________________
+cout << "array of delta phi's between phi of particles and leading jet phi" << endl;
+Double_t dphipartLJ = 0. ;
+Double_t *dphipartljet = new Double_t [fNPart];
+for( Int_t part = 0 ; part < fNPart ; part++ )
{
- dphi_partLJ = phi_leadjet - phi_partT [part] ;
+ dphipartLJ = fVectParticle[part]->phi - phileadjet ;
+ dphipartLJ = TVector2::Phi_mpi_pi (dphipartLJ) ; // restrict the delta phi to (-pi,pi) interval
+ dphipartljet [part] = dphipartLJ ;
+ printf("part= %d ; dphi_partLJ = %g \n", part, dphipartLJ );
+ }
+
- if ( dphi_partLJ < -TMath::Pi() ) { dphi_partLJ = -dphi_partLJ - 2.0 * TMath::Pi() ; }
- if ( dphi_partLJ > TMath::Pi() ) { dphi_partLJ = -dphi_partLJ + 2.0 * TMath::Pi() ; }
+//______________________________________________________________________________
+// Pt distribution for all particles
+//______________________________________________________________________________
+TH1F * hpt = (TH1F*)fHistos->FindObject("histo11");
+if ( hpt ) { for ( Int_t i = 0 ; i < fNPart ; i++ ) { hpt->Fill( fVectParticle[i]->pt ); } }
- dphi_partLJ = TMath::Abs(dphi_partLJ) ;
+//___________________________________________________________________________
+// Recomputing of radius of particles in leading jet
+//___________________________________________________________________________
+if (fDebug) { printf(" Searching particles with jet index %d\n", leadingjetindex); }
+
+Double_t ddeta = 0. , ddphi = 0. , rpart = 0. ;
+
+for( Int_t j = 0 ; j < partleadjet ; j++ )
+ {
+ ddeta = etaleadjet - fVectParticle[idxpartLJ[j]]->eta;
+
+ Double_t phitmp = fVectParticle[idxpartLJ[j]]->phi ;
+
+ ddphi = TVector2::Phi_mpi_pi ( phileadjet - phitmp ) ; // restrict the delta phi to (-pi,pi) interval
+
+ rpart = TMath::Hypot (ddeta, ddphi) ;
+
+ printf ("Particle %d with Re-Computed radius = %f ", idxpartLJ[j], rpart) ;
+ if ( (rpart - fRadius) >= 0.00000001 )
+ { printf (" bigger than selected radius of %f\n", fRadius ); }
+ else
+ { printf ("\n") ; }
+
+ if (hR) hR->Fill(rpart);
- dphiArray [part] = dphi_partLJ ;
}
-*/
- // Fill nr_jet histogram
- if (fHistos)
- {
-// printf("FILLING histograms\n");
- TH1F *h_jets = (TH1F*)fHistos->FindObject("histo1");
- if (h_jets) h_jets->Fill(nJets);
- // There may be no leading jet with more that 2 particles !
- TH1F *h_leadpart = (TH1F*)fHistos->FindObject("histo2");
- if (part_leadjet && h_leadpart) h_leadpart->Fill(part_leadjet);
- TProfile * h_prof = (TProfile*)fHistos->FindObject("histo3");
- if (part_leadjet && h_prof) h_prof->Fill(pt_leadjet,part_leadjet);
- TH1F *h_MD = (TH1F*)fHistos->FindObject("histo4");
- for( Int_t k = 0 ; k < part_leadjet ; k++)
- { h_MD->Fill( z_part_ljet[k] ); }
+//_______________________________________________________________________
+// Computing of radius that contain 80% of Leading Jet ( PT and multiplicity )
+//_______________________________________________________________________
+Double_t corepartleadjet = 0.8 * partleadjet ;
+Double_t coreptleadjet = 0.8 * ptleadjet ;
+Int_t countercorepart = 0 ;
+Double_t countercorept = 0. ;
+Int_t sortedindex = -1 ;
+TProfile * hprof24 = (TProfile*)fHistos->FindObject("histo24");
+TProfile * hprof25 = (TProfile*)fHistos->FindObject("histo25");
-// TProfile *h_phi = (TProfile*)fHistos->At(4);
-// for( Int_t k = 0 ; k < nPart ; k++)
-// { h_phi->Fill( TMath::RadToDeg() * dphiArray [k] , nPart ) ; }
+TProfile * hprof26 = (TProfile*)fHistos->FindObject("histo26");
+TProfile * hprof27 = (TProfile*)fHistos->FindObject("histo27");
+TProfile * hprof28 = (TProfile*)fHistos->FindObject("histo28");
+TProfile * hprof29 = (TProfile*)fHistos->FindObject("histo29");
-// TH1F *h_tpd = (TH1F*)fHistos->At(5);
-// for( Int_t k = 0 ; k < nPart ; k++)
-// {
-// if ( (phi_partT[k] > (TMath::Pi()/3.)) && (phi_partT[k] < (2. * TMath::Pi()/3.)) )
-// { h_tpd->Fill( pt_partT [k] ) ; }
-// }
+if ((hprof24) && (hprof25) && (hprof26) && (hprof27) && (hprof28) && (hprof29) )
+{
+for( Int_t part = 0 ; part < fNPart ; part++ )
+ {
+ Double_t pttmp = 0. ; Double_t etatmp = 0. ; Double_t phitmp = 0. ; // temporary variables
+ Double_t dpart = 0. ;
+ sortedindex = fIdxArray[part] ;
+ if ( fVectParticle [ sortedindex ]->njet == leadingjetindex )
+ {
+ pttmp = fVectParticle[sortedindex]->pt ;
+ etatmp = fVectParticle[sortedindex]->eta ;
+ phitmp = fVectParticle[sortedindex]->phi ;
- }
+ ++countercorepart ;
+ countercorept += pttmp ;
+ dpart = TMath::Hypot ( etaleadjet - etatmp, TVector2::Phi_mpi_pi (phileadjet - phitmp) ) ;
- // CLEANING SECTION
- for (Int_t i=0; i<nPart; i++) delete vectParticle[i];
- delete [] vectParticle;
- for (Int_t i=0; i<nJets; i++) delete vectJet[i];
- delete [] vectJet;
- delete [] ptArray;
- delete [] idxArray;
+ if ( countercorepart <= corepartleadjet ) { hprof24->Fill(ptleadjet, dpart); }
+ if ( countercorept <= coreptleadjet ) { hprof25->Fill(ptleadjet, dpart); }
- if (z_part_ljet) delete [] z_part_ljet;
- if (idx_leadjet_part) delete [] idx_leadjet_part;
- if (jets_pt_idx) delete [] jets_pt_idx ;
- if (jets_pt) delete [] jets_pt ;
+ if (ptleadjet > 5.) { hprof26->Fill(dpart, countercorepart); hprof28->Fill(dpart, countercorept); }
+ if (ptleadjet > 30.) { hprof27->Fill(dpart, countercorepart); hprof29->Fill(dpart, countercorept); }
- vectArray->Delete() ; // TClonesArray of lorentz vectors
+ }
}
-// end of FindJets
+}
+
+ TH1F *hjetpt = (TH1F*)fHistos->FindObject("histo1");
+ TH1F *hjeteta = (TH1F*)fHistos->FindObject("histo2");
+ TH1F *hjetphi = (TH1F*)fHistos->FindObject("histo3");
+ TH1F *hjetnjet = (TH1F*)fHistos->FindObject("histo4");
+
+ for( Int_t jet = 0 ; jet < fNJets ; jet++ )
+ {
+ if (hjetpt) hjetpt ->Fill ( fVectJet[jet]->pt ) ;
+ if (hjeteta) hjeteta ->Fill ( fVectJet[jet]->eta ) ;
+ if (hjetphi) hjetphi ->Fill ( fVectJet[jet]->phi ) ;
+ if (hjetnjet) hjetnjet ->Fill ( fVectJet[jet]->njet ) ;
+ }
+
+ TH1F *hjets = (TH1F*)fHistos->FindObject("histo5");
+ if (hjets) hjets->Fill(fNJets);
+ TH1F *hleadpart = (TH1F*)fHistos->FindObject("histo6");
+ if (hleadpart) hleadpart->Fill(partleadjet);
+
+ TProfile * hprof = (TProfile*)fHistos->FindObject("histo7");
+ if (hprof) hprof->Fill(ptleadjet,partleadjet);
+
+ TH1F *hMD = (TH1F*)fHistos->FindObject("histo8");
+ for( Int_t k = 0 ; k < partleadjet ; k++)
+ { hMD->Fill( zpartljet[k] ); }
+
+ TProfile * hphi = (TProfile*)fHistos->FindObject("histo9");
+ for( Int_t k = 0 ; k < partleadjet ; k++)
+ { hphi->Fill( TMath::RadToDeg() * dphipartljet [k] , fNPart ) ; }
+
+ TProfile * htpd = (TProfile*)fHistos->FindObject("histo10");
+ for( Int_t k = 0 ; k < fNPart ; k++)
+ { htpd->Fill( TMath::RadToDeg() * dphipartljet [k] , ptsumevent ) ; }
+
+
+ TProfile * hprof1 = (TProfile*)fHistos->FindObject("histo21");
+ if (hprof1) hprof1->Fill(ptleadjet, fNPart);
+
+ TProfile * hprof2 = (TProfile*)fHistos->FindObject("histo22");
+ if (hprof2) hprof2->Fill(ptleadjet, ptsumevent);
+
+ TProfile * hprof1toward = (TProfile*)fHistos->FindObject("histo21_toward");
+ TProfile * hprof1transverse = (TProfile*)fHistos->FindObject("histo21_transverse");
+ TProfile * hprof1away = (TProfile*)fHistos->FindObject("histo21_away");
+ TProfile * hprof2toward = (TProfile*)fHistos->FindObject("histo22_toward");
+ TProfile * hprof2transverse = (TProfile*)fHistos->FindObject("histo22_transverse");
+ TProfile * hprof2away = (TProfile*)fHistos->FindObject("histo22_away");
+ TH1F * hpttoward = (TH1F*)fHistos->FindObject("histo23_toward");
+ TH1F * hpttransverse = (TH1F*)fHistos->FindObject("histo23_transverse");
+ TH1F * hptaway = (TH1F*)fHistos->FindObject("histo23_away");
+
+ if ( (hprof1toward) && (hprof1transverse) && (hprof1away) && (hprof2toward) && (hprof2transverse) && (hprof2away) )
+ {
+ for( Int_t part = 0 ; part < fNPart ; part++)
+ {
+ Double_t ptpart = fVectParticle[part]->pt ; // pt of particle
+ if ( ( dphipartljet[part] >=0.) && ( dphipartljet[part] < kPI/3. ) )
+ {
+ hprof1toward->Fill( ptleadjet, fNPart );
+ hprof2toward->Fill( ptleadjet, ptsumevent);
+ hpttoward->Fill( ptpart );
+ }
+ else
+ if ( ( dphipartljet[part] >= (kPI/3.)) && ( dphipartljet[part] < (2.*kPI/3.)) )
+ {
+ hprof1transverse->Fill( ptleadjet, fNPart );
+ hprof2transverse->Fill( ptleadjet, ptsumevent);
+ hpttransverse->Fill( ptpart );
+ }
+ else
+ if ( ( dphipartljet[part] >= ( 2.*kPI/3.)) && ( dphipartljet[part] < kPI ) )
+ {
+ hprof1away->Fill( ptleadjet, fNPart );
+ hprof2away->Fill( ptleadjet, ptsumevent);
+ hptaway->Fill( ptpart );
+ }
+ }
+ }
+
+}
+
+
+//______________________________________________________________________________
+void AliCdfJetFinder::Clean()
+{
+// CLEANING SECTION
+ delete [] fVectParticle;
+ delete [] fVectJet;
+ delete [] fPtArray;
+ delete [] fIdxArray;
+
+ Reset();
+}
//______________________________________________________________________________
void AliCdfJetFinder::FinishRun()
-{}
+{
+// do i need this?
+}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff