* about the suitability of this software for any purpose. It is *
* provided "as is" without express or implied warranty. *
**************************************************************************/
-
-
//---------------------------------------------------------------------
// UA1 Jet finder
#include <Riostream.h>
#include <TLorentzVector.h>
+#include <TFile.h>
#include <TH2F.h>
#include "AliUA1JetFinder.h"
#include "AliUA1JetHeader.h"
////////////////////////////////////////////////////////////////////////
-AliUA1JetFinder::AliUA1JetFinder()
-
+AliUA1JetFinder::AliUA1JetFinder():
+ fHeader(0x0),
+ fLego(0x0)
{
- //
- // Constructor
- //
- fHeader = 0x0;
- fLego = 0x0;
+ // Default constructor
}
////////////////////////////////////////////////////////////////////////
AliUA1JetFinder::~AliUA1JetFinder()
{
- //
// destructor
- //
-
- // delete fLego;
-
- // reset and delete header
}
////////////////////////////////////////////////////////////////////////
{
// initialize event, look for jets, download jet info
-
// initialization in 2 steps
// 1) transform input to pt,eta,phi plus lego
// 2) dump lego
if (nIn == 0) return;
// local arrays for input
+ Float_t* enT = new Float_t[nIn];
Float_t* ptT = new Float_t[nIn];
Float_t* etaT = new Float_t[nIn];
Float_t* phiT = new Float_t[nIn];
// load input vectors
for (Int_t i = 0; i < nIn; i++){
- TLorentzVector *lv = (TLorentzVector*) lvArray->At(i);
- ptT[i] = lv->Pt();
- etaT[i] = lv->Eta();
- phiT[i] = ((lv->Phi() < 0) ? (lv->Phi()) + 2 * TMath::Pi() : lv->Phi());
+ TLorentzVector *lv = (TLorentzVector*) lvArray->At(i);
+ enT[i] = lv->Energy();
+ ptT[i] = lv->Pt();
+ etaT[i] = lv->Eta();
+ phiT[i] = ((lv->Phi() < 0) ? (lv->Phi()) + 2 * TMath::Pi() : lv->Phi());
+ if (fReader->GetCutFlag(i) == 1)
fLego->Fill(etaT[i], phiT[i], ptT[i]);
}
fJets->SetNinput(nIn);
TAxis* xaxis = fLego->GetXaxis();
TAxis* yaxis = fLego->GetYaxis();
Float_t e = 0.0;
- for (Int_t i = 1; i <= fHeader->GetNbinEta(); i++) {
- for (Int_t j = 1; j <= fHeader->GetNbinPhi(); j++) {
+ for (Int_t i = 1; i <= fHeader->GetLegoNbinEta(); i++) {
+ for (Int_t j = 1; j <= fHeader->GetLegoNbinPhi(); j++) {
e = fLego->GetBinContent(i,j);
if (e > 0.0) e -= fHeader->GetMinCellEt();
if (e < 0.0) e = 0.;
}
// run the algo. Parameters from header
- Int_t nTot = (fHeader->GetNbinEta())*(fHeader->GetNbinPhi());
+ Int_t nTot = (fHeader->GetLegoNbinEta())*(fHeader->GetLegoNbinPhi());
Float_t minmove = fHeader->GetMinMove();
Float_t maxmove = fHeader->GetMaxMove();
Int_t mode = fHeader->GetMode();
ua1_jet_finder(nCell, nTot, etCell, etaCell, phiCell,
minmove, maxmove, mode, precbg, ierror);
-
// sort jets
Int_t * idx = new Int_t[UA1JETS.njet];
TMath::Sort(UA1JETS.njet, UA1JETS.etj, idx);
// download jet info.
- AliJetReaderHeader* rheader = fReader->GetReaderHeader();
for(Int_t i = 0; i < UA1JETS.njet; i++) {
// reject events outside acceptable eta range
- if (((UA1JETS.etaj[1][idx[i]])> (rheader->GetFiducialEtaMax()))
- || ((UA1JETS.etaj[1][idx[i]]) < (rheader->GetFiducialEtaMin())))
- continue;
- Float_t px, py,pz,en; // convert to 4-vector
- px = UA1JETS.etj[idx[i]] * TMath::Cos(UA1JETS.phij[1][idx[i]]);
- py = UA1JETS.etj[idx[i]] * TMath::Sin(UA1JETS.phij[1][idx[i]]);
- pz = UA1JETS.etj[idx[i]] /
- TMath::Tan(2.0 * TMath::ATan(TMath::Exp(-UA1JETS.etaj[1][idx[i]])));
- en = TMath::Sqrt(px * px + py * py + pz * pz);
- fJets->AddJet(px, py, pz, en);
+ if (((UA1JETS.etaj[1][idx[i]])> (fHeader->GetJetEtaMax()))
+ || ((UA1JETS.etaj[1][idx[i]]) < (fHeader->GetJetEtaMin())))
+ continue;
+ Float_t px, py,pz,en; // convert to 4-vector
+ px = UA1JETS.etj[idx[i]] * TMath::Cos(UA1JETS.phij[1][idx[i]]);
+ py = UA1JETS.etj[idx[i]] * TMath::Sin(UA1JETS.phij[1][idx[i]]);
+ pz = UA1JETS.etj[idx[i]] /
+ TMath::Tan(2.0 * TMath::ATan(TMath::Exp(-UA1JETS.etaj[1][idx[i]])));
+ en = TMath::Sqrt(px * px + py * py + pz * pz);
+ fJets->AddJet(px, py, pz, en);
}
// find multiplicities and relationship jet-particle
// find also percentage of pt from pythia
Int_t* injet = new Int_t[nIn];
- for (Int_t i = 0; i < nIn; i++) injet[i]= -1;
+ Int_t* sflag = new Int_t[nIn];
+ for (Int_t i = 0; i < nIn; i++) {injet[i]= 0;sflag[i]=0;}
Int_t* mult = new Int_t[fJets->GetNJets()];
+ Int_t* ncell = new Int_t[fJets->GetNJets()];
Float_t* percentage = new Float_t[fJets->GetNJets()];
for(Int_t i = 0; i < (fJets->GetNJets()); i++) {
- Float_t pt_sig = 0.0;
- mult[i] = 0;
- for (Int_t j = 0; j < nIn; j++) {
- Float_t deta = etaT[j] - fJets->GetEta(i);
- Float_t dphi = phiT[j] - fJets->GetPhi(i);
- if (dphi < -TMath::Pi()) dphi= -dphi - 2.0 * TMath::Pi();
- if (dphi > TMath::Pi()) dphi = 2.0 * TMath::Pi() - dphi;
- Float_t dr = TMath::Sqrt(deta * deta + dphi * dphi);
- if (dr < fHeader->GetRadius() && injet[j] == -1) {
- if (fReader->GetSignalFlag(j) == 1) pt_sig+=ptT[j];
- injet[j] = i;
- mult[i]++;
+ Float_t pt_sig = 0.0;
+ mult[i] = 0;
+ ncell[i] = UA1JETS.ncellj[i];
+ for (Int_t j = 0; j < nIn; j++) {
+ Float_t deta = etaT[j] - fJets->GetEta(i);
+ Float_t dphi = phiT[j] - fJets->GetPhi(i);
+ if (dphi < -TMath::Pi()) dphi= -dphi - 2.0 * TMath::Pi();
+ if (dphi > TMath::Pi()) dphi = 2.0 * TMath::Pi() - dphi;
+ Float_t dr = TMath::Sqrt(deta * deta + dphi * dphi);
+ if (dr < fHeader->GetRadius() && injet[j] == 0) {
+ injet[j] = -(i+1);
+ if ((fReader->GetCutFlag(j)) == 1 &&
+ (etaT[j] < fHeader->GetLegoEtaMax()) &&
+ (etaT[j] > fHeader->GetLegoEtaMin())) {
+ injet[j] = i+1;
+ mult[i]++;
+ if (fReader->GetSignalFlag(j) == 1) {
+ pt_sig+=ptT[j];
+ sflag[j]=1;
+ }
+ }
+ }
}
- }
- percentage[i] = pt_sig/((Double_t) fJets->GetPt(i));
+ percentage[i] = (pt_sig-ncell[i]*UA1JETS.etavg)/
+ ((Double_t) fJets->GetPt(i));
}
+ fJets->SetNCells(ncell);
fJets->SetPtFromSignal(percentage);
fJets->SetMultiplicities(mult);
fJets->SetInJet(injet);
+ fJets->SetEtaIn(etaT);
+ fJets->SetPhiIn(phiT);
+ fJets->SetPtIn(ptT);
+ fJets->SetEtAvg(UA1JETS.etavg);
+ delete ncell;
+ delete enT;
+ delete ptT;
+ delete etaT;
+ delete phiT;
+ delete injet;
+ delete idx;
+ delete mult;
+ delete percentage;
}
////////////////////////////////////////////////////////////////////////
void AliUA1JetFinder::Reset()
-
{
fLego->Reset();
fJets->ClearJets();
fHeader->Write();
}
-
////////////////////////////////////////////////////////////////////////
void AliUA1JetFinder::Init()
{
// initializes some variables
Float_t dEta, dPhi;
- dEta = (fHeader->GetEtaMax()-fHeader->GetEtaMin())
- /((Float_t) fHeader->GetNbinEta());
- dPhi = (fHeader->GetPhiMax()-fHeader->GetPhiMin())
- /((Float_t) fHeader->GetNbinPhi());
+ dEta = (fHeader->GetLegoEtaMax()-fHeader->GetLegoEtaMin())
+ /((Float_t) fHeader->GetLegoNbinEta());
+ dPhi = (fHeader->GetLegoPhiMax()-fHeader->GetLegoPhiMin())
+ /((Float_t) fHeader->GetLegoNbinPhi());
UA1CELL.etaCellSize = dEta;
UA1CELL.phiCellSize = dPhi;
// book lego
fLego = new
TH2F("legoH","eta-phi",
- fHeader->GetNbinEta(), fHeader->GetEtaMin(), fHeader->GetEtaMax(),
- fHeader->GetNbinPhi(), fHeader->GetPhiMin(), fHeader->GetPhiMax());
+ fHeader->GetLegoNbinEta(), fHeader->GetLegoEtaMin(),
+ fHeader->GetLegoEtaMax(), fHeader->GetLegoNbinPhi(),
+ fHeader->GetLegoPhiMin(), fHeader->GetLegoPhiMax());
}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff