X-Git-Url: http://git.uio.no/git/?a=blobdiff_plain;f=JETAN%2FAliCdfJetFinder.cxx;h=9007581c59abdfe3c6ee1ce2c007ae2c90c4db0b;hb=3dda898df57fdbe6b608a2d4d160514149ac5ab4;hp=04696753cf823cc8219bdc2bd59d3a635dc7c1a7;hpb=15b67c397e901deca9487ef4a674f9393afb78a7;p=u%2Fmrichter%2FAliRoot.git diff --git a/JETAN/AliCdfJetFinder.cxx b/JETAN/AliCdfJetFinder.cxx index 04696753cf8..9007581c59a 100644 --- a/JETAN/AliCdfJetFinder.cxx +++ b/JETAN/AliCdfJetFinder.cxx @@ -1,449 +1,906 @@ -/************************************************************************** - * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * - * * - * Author: The ALICE Off-line Project. * - * Contributors are mentioned in the code where appropriate. * - * * - * Permission to use, copy, modify and distribute this software and its * - * documentation strictly for non-commercial purposes is hereby granted * - * without fee, provided that the above copyright notice appears in all * - * copies and that both the copyright notice and this permission notice * - * appear in the supporting documentation. The authors make no claims * - * about the suitability of this software for any purpose. It is * - * provided "as is" without express or implied warranty. * - **************************************************************************/ - -//--------------------------------------------------------------------- -// -// -//--------------------------------------------------------------------- -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include "AliCdfJetFinder.h" -#include "AliCdfJetHeader.h" -#include "AliJetReader.h" -#include "AliJetReaderHeader.h" -#include "AliJet.h" -#include "AliAODJet.h" -#include "AliAODEvent.h" -#include "TProfile.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 - } ; - -ClassImp ( AliCdfJetFinder ) - -//______________________________________________________________________________ -AliCdfJetFinder::AliCdfJetFinder(): - AliJetFinder(), - fHistos(0) - { /* Constructor */ } - -//______________________________________________________________________________ -AliCdfJetFinder::~AliCdfJetFinder() - - { - // destructor - cout << "Calling the destructor ... " << endl ; - Reset(); - cout << "Destructor called!" << endl; - } - -//______________________________________________________________________________ -void AliCdfJetFinder::CreateOutputObjects(TList *histos) -{ - // Create the list of histograms. Only the list is owned. - fHistos = histos; - - TH1F *h1 = new TH1F ("histo1", "no jets/event", 100, 0,20); - h1->SetStats(kTRUE); - h1->GetXaxis()->SetTitle("N_{jets}"); - h1->GetYaxis()->SetTitle("#frac{dN}{dN_{jets}}"); - h1->GetXaxis()->SetTitleColor(1); - h1->SetMarkerStyle(kFullCircle); - fHistos->Add(h1); - - TH1F *h2 = new TH1F ("histo2", "no part/leading jet", 40, 0,40); - h2->SetStats(kTRUE); - h2->GetXaxis()->SetTitle("N_{leading}"); - h2->GetYaxis()->SetTitle("#frac{dN}{dN_{leading}}"); - 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. ) ; - h3->SetStats(kTRUE); - h3->GetXaxis()->SetTitle("P_{t}"); - h3->GetYaxis()->SetTitle("N_{leading}"); - h3->GetXaxis()->SetTitleColor(1); - h3->SetMarkerStyle(kFullCircle); - fHistos->Add(h3); - - TH1F *h4 = new TH1F ("histo4", "Charge momentum distribution for leading jet", 500, 0 , 5); - fHistos->Add(h4); - - TProfile *h5 = new TProfile ("histo5", "ProfileX of N_{charge} vs dphi leading jet", 100 , 0. , 200. , 0 , 100 ); - fHistos->Add(h5); - - TH1F *h6 = new TH1F ("histo6", " \"Transverse\" Pt Distribution ", 70, 0 , 14); - fHistos->Add(h6); - - -//cout << "CreateOutputObjetcs done!" << endl ; -} - -//______________________________________________________________________________ -void AliCdfJetFinder::FindJets() - { - //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 ; - - 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; } - - Int_t nJets = 0; // n jets in this event - - fJets->SetNinput ( nPart ) ; // number of input objects - - 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 - - // 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 - TLorentzVector * lv = (TLorentzVector*) vectArray->At(i); - // 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; - - // initializing arrays - idxArray [i] = 0 ; - ptArray [i] = aParticle->pt ; - } - - TMath::Sort ( nPart, ptArray, idxArray ) ; // get a sorted array of indexes with size = size of TClonesArray - - 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 - - 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 - - npartJet = 0 ; // reseting number of particles in jet - pt_jet = 0.; - eta_jet = 0.; - phi_jet = 0.; - sum_eta = 0.; - sum_phi = 0.; - - for ( UInt_t i_part = first_non_flagged ; i_part < (UInt_t)nPart ; i_part++ ) - {// iteration over particles in event - // reseting variables - - // the loop is done over sorted array of pt - idxPtSort = idxArray[i_part] ; // index entry of TLorentzVector from vect_arr - - if ( lkup_table.TestBitNumber(i_part) == 1 ) { continue; } // if 4vector is already flagged skip it - - //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); - - // all angles are expressed in rad - - if ( TMath::Abs(eta_tmp) > 0.9 ) - { - lkup_table.SetBitNumber ( i_part, 1 ) ; // mark particle as used to be skipped - continue ; - } - - - if ( i_part == first_non_flagged ) - {// this is first particle in event; leading particle - // initialise the jet variables with leading particle numbers - - 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); - - lkup_table.SetBitNumber ( i_part, 1 ) ; // flag the 4vector - - vectParticle[idxPtSort]->njet = nJets ; // associate particle with current jet - - continue ; // skip to next particle - } - - // condition to be in jet - Double_t deta = eta_jet - eta_tmp ; - Double_t dphi = phi_jet - phi_tmp ; - - if ( dphi < -TMath::Pi() ) { dphi = -dphi - 2.0 * TMath::Pi() ; } - if ( dphi > TMath::Pi() ) { dphi = -dphi + 2.0 * TMath::Pi() ; } - - Double_t r_computed = TMath::Sqrt ( deta * deta + dphi * dphi ) ; - - Bool_t in_jet = ( r_computed <= radius ) ? 1 : 0 ; // if r_computed is within jet_r in_jet == 1 else 0 - - if ( in_jet ) - { // calculus of jet variables - npartJet++; // incrementing counter of particles in 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 ; - - 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); - - // 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; - - AliAODJet jet (px, py, pz, en); -// cout << "Printing jet " << endl; - if (debug) jet.Print(""); - - if (fromAod) { - for (Int_t parts = 0; parts < nPart; parts++ ) { - if (vectParticle[parts]->njet == nJets-1) - jet.AddTrack(refs->At(parts)); - } - } - -// cout << "Adding jet ... " ; - AddJet(jet); -// cout << "added \n" << endl; - - } - // 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++ ) - { - 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; - } - TMath::Sort ( nJets, jets_pt , jets_pt_idx ) ; // sorting pt of jets - - // selection of leading jet with nr of particles > 1 - for( Int_t i = 0 ; i < nJets ; i++ ) - { - 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 ; - } - } - // end of selection of leading jet - - // 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 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;} - - } - // end of loop over DETECTED jets - - - -// 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 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 - << " Z = " << z << endl; - } - - -/* -Double_t dphi_partLJ = 0. ; -Double_t dphiArray [nPart]; -for( Int_t part = 0 ; part < nPart ; part++ ) - { - dphi_partLJ = phi_leadjet - phi_partT [part] ; - - 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() ; } - - dphi_partLJ = TMath::Abs(dphi_partLJ) ; - - 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] ); } - - -// TProfile *h_phi = (TProfile*)fHistos->At(4); -// for( Int_t k = 0 ; k < nPart ; k++) -// { h_phi->Fill( TMath::RadToDeg() * dphiArray [k] , nPart ) ; } - - -// 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] ) ; } -// } - - - } - - - // CLEANING SECTION - for (Int_t i=0; iDelete() ; // TClonesArray of lorentz vectors - } -// end of FindJets - - -//______________________________________________________________________________ -void AliCdfJetFinder::FinishRun() -{} - +/************************************************************************** + * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * + * * + * Author: The ALICE Off-line Project. * + * Contributors are mentioned in the code where appropriate. * + * * + * Permission to use, copy, modify and distribute this software and its * + * documentation strictly for non-commercial purposes is hereby granted * + * without fee, provided that the above copyright notice appears in all * + * copies and that both the copyright notice and this permission notice * + * appear in the supporting documentation. The authors make no claims * + * about the suitability of this software for any purpose. It is * + * provided "as is" without express or implied warranty. * + **************************************************************************/ + +//--------------------------------------------------------------------- +// 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) +//--------------------------------------------------------------------- + +/* +Changelog + + + +*/ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "AliJetReader.h" +#include "AliJetReaderHeader.h" +#include "AliJet.h" +#include "AliAODJet.h" +#include "AliAODEvent.h" +#include "AliJetFinder.h" + +#include "AliCdfJetFinder.h" +#include "AliCdfJetHeader.h" + +ClassImp(AliCdfJetFinder) + +//______________________________________________________________________________ +AliCdfJetFinder::AliCdfJetFinder(): + AliJetFinder(), + fHistos(0), + fDebug(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 + } + +//______________________________________________________________________________ +void AliCdfJetFinder::CreateOutputObjects(TList * const histos) +{ + // Create the list of histograms. Only the list is owned. + fHistos = histos; + +// gStyle->SetOptStat(11111111); + + TH1F *h1 = new TH1F ("histo1", "Pt distribution of jets", 200, 0,200); // 1GeV/bin + h1->SetStats(kTRUE); + 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", "Eta distribution of jets", 240, -1.2,1.2); // 1 unit of rapidity / 100 bin + h2->SetStats(kTRUE); + h2->GetXaxis()->SetTitle("Eta of jets"); + h2->GetYaxis()->SetTitle("Number of jets"); + h2->GetXaxis()->SetTitleColor(1); + h2->SetMarkerStyle(kFullCircle); + fHistos->Add(h2); + + TH1F *h3 = new TH1F ("histo3", "Phi distribution of jets", 400, -4,4); + h3->SetStats(kTRUE); + 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", "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); + + 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", "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(" 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(" 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(" 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(" 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(" 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(" 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(" 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(" 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(" 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(" 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(" 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(" 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(" 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(" 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(" 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(" 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(" in 0.02 bin"); + h29->GetXaxis()->SetTitleColor(1); + h29->SetMarkerStyle(kFullCircle); + fHistos->Add(h29); + +} + +//______________________________________________________________________________ +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". + +AliCdfJetHeader *header = (AliCdfJetHeader*)fHeader; + + if (header) + { + fDebug = header->IsDebugCDF(); + 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) + { + 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) { 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; } + + fNPart = vectArray->GetEntries() ; // n particles in this event; + + if ( fNPart == 0 ) { return ; } // if event empty then exit + + fJets->SetNinput ( fNPart ) ; // number of input objects + + fVectParticle = new varContainer* [fNPart]; // container for Particles + + fPtArray = new Double_t [fNPart] ; // momentum array + fIdxArray = new Int_t [fNPart] ; // index array of sorted pts + + // initialisation of momentum and index arrays + 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 + varContainer *aParticle = new varContainer; + aParticle->pt = lv->Pt(); + aParticle->eta = lv->Eta(); + aParticle->phi = TVector2::Phi_mpi_pi ( lv->Phi() ); // normalize to -pi,pi + aParticle->njet = -999; + + fVectParticle[i] = aParticle; // vector of Particles + + // initializing arrays + fIdxArray [i] = -999 ; + fPtArray [i] = aParticle->pt ; + } + + TMath::Sort ( fNPart, fPtArray, fIdxArray ) ; // get a sorted array of indexes with TClonesArray.Size() + +} + + +//______________________________________________________________________________ +void AliCdfJetFinder::FindCones() +{ +// parsing of particles in event and estlabish jets (label them with jet index) + + 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 ; + + fNJets = -1 ; // n jets in this event + Int_t idxPtSort = -1 ; // index of array of sorted pt indexes + + if (fDebug) { cout << "\n\n\n\n\n\n------------------\nBegin Event Analysis\n------------------\n\n" << endl ;} + + cout << "fNPart = " << fNPart << endl; + + TBits lkupTable ( fNPart ) ; // bit container ; 1-to-1 corespondence with fIdxArray + + 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 + + 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 + + if ( lkupTable.TestBitNumber(ipart) ) { continue; } // if 4vector is already flagged skip it + + //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 ( ipart == firstnonflagged ) + {// this is first particle in event; leading particle + // begin the search around this particle in a fRadius + + // CENTRE OF THE JET + ptSeed = pttmp ; etaSeed = etatmp ; phiSeed = phitmp ; // seeding the jet with first particle idxPtSort + + lkupTable.SetBitNumber ( ipart ) ; // flag the index of particle in lkup_table + fVectParticle[idxPtSort]->njet = fNJets ; // associate particle with current jet number + + 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 + deta = etatmp - etaSeed ; + dphi = TVector2::Phi_mpi_pi (phitmp - phiSeed) ; // computing dphi and normalizing to (0,2pi) interval in one step + + dcomputed = TMath::Hypot(deta, dphi) ; // Distance(fRadius) to (eta,phi) seed + + injet = ( ( fRadius - dcomputed ) >= 0.000000001 ) ? 1 : 0 ; // if r_computed is within jet_r in_jet == 1 else 0 + + if ( injet ) + { // calculus of jet variables + lkupTable.SetBitNumber ( ipart ) ; // flag the index of particle in lkup_table + fVectParticle[idxPtSort]->njet = fNJets ; // setting in particle list the associated 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() ;} + + continue ; // skip to next particle + } + + } + // end of iteration over event; one jet definition of content ; jet parameters to be computed later + } +} + + +//______________________________________________________________________________ +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 + +// JET CONTAINER +fVectJet = new varContainer* [fNJets]; // container for Jets + +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 + +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 + + if ( fVectParticle[idxPtSort]->njet == jet ) + { + ++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 ; + + } + // 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(""); + + 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 ) ) + { + 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 + + + +////////////////////////////////////////////////// +//// Computing of values used in histograms +////////////////////////////////////////////////// + +//___________________________________________________________________________ +// 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) ; + +//___________________________________________________________________________ +// 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 *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 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; + } + + +//___________________________________________________________________________ +// 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++ ) + { + 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 ); + } + + +//______________________________________________________________________________ +// 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 ); } } + +//___________________________________________________________________________ +// 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); + + } + + + +//_______________________________________________________________________ +// 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 * hprof26 = (TProfile*)fHistos->FindObject("histo26"); +TProfile * hprof27 = (TProfile*)fHistos->FindObject("histo27"); +TProfile * hprof28 = (TProfile*)fHistos->FindObject("histo28"); +TProfile * hprof29 = (TProfile*)fHistos->FindObject("histo29"); + + +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) ) ; + + if ( countercorepart <= corepartleadjet ) { hprof24->Fill(ptleadjet, dpart); } + if ( countercorept <= coreptleadjet ) { hprof25->Fill(ptleadjet, dpart); } + + if (ptleadjet > 5.) { hprof26->Fill(dpart, countercorepart); hprof28->Fill(dpart, countercorept); } + if (ptleadjet > 30.) { hprof27->Fill(dpart, countercorepart); hprof29->Fill(dpart, countercorept); } + + } + } +} + + 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? +} +