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// $Id: PFTauIDMod.cc,v 1.3 2011/02/17 14:08:49 ceballos Exp $
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#include "MitPhysics/Mods/interface/PFTauIDMod.h"
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#include "MitPhysics/Init/interface/ModNames.h"
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#include "MitAna/DataTree/interface/PFTauCol.h"
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using namespace mithep;
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ClassImp(mithep::PFTauIDMod)
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//------------------------------------------------------------------------------
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PFTauIDMod::PFTauIDMod(const char *name, const char *title) :
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BaseMod(name,title),
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fPFTausName(Names::gkPFTauBrn),
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fGoodPFTausName(ModNames::gkGoodPFTausName),
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fPtMin(15.0),
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fPtLeadChargedHadronPFCandMin(5.0),
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fIsoChargedHadronPtSumMax(2.0),
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fIsoGammaEtSumMax(3.0),
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fSignalMassMin(0.13),
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fSignalMassMax(2.00),
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fIsHPSSel(kFALSE),
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fHPSIso("loose"),
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fPFTaus(0)
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{
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// Constructor.
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}
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//------------------------------------------------------------------------------
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void PFTauIDMod::Process()
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{
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// Process entries of the tree.
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LoadBranch(fPFTausName);
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PFTauOArr *GoodTaus = new PFTauOArr;
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GoodTaus->SetName(fGoodPFTausName);
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for (UInt_t i=0; i<fPFTaus->GetEntries(); ++i) {
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const PFTau *tau = fPFTaus->At(i);
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if(fIsHPSSel == kFALSE) {
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if (tau->NSignalPFCands() == 0)
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continue;
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CompositeParticle tauSystem;
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CompositeParticle tauChargedSystem;
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UInt_t nTrk = 0;
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for (UInt_t j=0; j<tau->NSignalPFCands(); ++j) {
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tauSystem.AddDaughter(tau->SignalPFCand(j));
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if(tau->SignalPFCand(j) != 0 &&
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tau->SignalPFCand(j)->Charge() != 0){
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nTrk++;
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tauChargedSystem.AddDaughter(tau->SignalPFCand(j));
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}
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}
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if (nTrk != 1 && nTrk != 3)
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continue;
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if (TMath::Abs(tau->Charge()) - 1.0 > 0.0001)
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continue;
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if (tauSystem.Pt() <= fPtMin)
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continue;
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if(!tau->LeadChargedHadronPFCand())
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continue;
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if(tau->LeadChargedHadronPFCand()->Pt() <= fPtLeadChargedHadronPFCandMin)
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continue;
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if (tau->IsoChargedHadronPtSum() >= fIsoChargedHadronPtSumMax)
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continue;
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if (tau->IsoGammaEtSum() >= fIsoGammaEtSumMax)
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continue;
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if (tauChargedSystem.Mass() <= fSignalMassMin || tauChargedSystem.Mass() >= fSignalMassMax)
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continue;
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}
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else { // if we're doing hps selection:
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if(tau->Pt() <= fPtMin)
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continue;
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if(tau->DiscriminationByDecayModeFinding() < 0.5)
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continue;
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if(tau->DiscriminationAgainstElectron() < 0.5)
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continue;
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if(tau->DiscriminationAgainstMuon() < 0.5)
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continue;
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// "loose" should be default, but others can be used
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if(fHPSIso.Contains("loose",TString::kIgnoreCase)) {
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if(tau->DiscriminationByLooseIsolation() < 0.5)
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continue;
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}
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else if(fHPSIso.Contains("med",TString::kIgnoreCase)) {
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if(tau->DiscriminationByMediumIsolation() < 0.5)
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continue;
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}
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else if(fHPSIso.Contains("tight",TString::kIgnoreCase)) {
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if(tau->DiscriminationByTightIsolation() < 0.5)
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continue;
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}
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else {
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SendError(kWarning,"Process","ERROR: HPS Isolation not properly defined!");
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}
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}
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// add good tau to output collection
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GoodTaus->Add(tau);
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}
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// sort according to pt
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GoodTaus->Sort();
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// add to event for other modules to use
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AddObjThisEvt(GoodTaus);
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}
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//------------------------------------------------------------------------------
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void PFTauIDMod::SlaveBegin()
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{
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// Run startup code on the computer (slave) doing the actual analysis. Here,
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// we just request the Tau collection branch.
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// note: for safety, this overrides SetPFTausName
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if(fIsHPSSel) {
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fPFTausName = TString(Names::gkHPSTauBrn);
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}
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else
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fPFTausName = TString(Names::gkPFTauBrn);
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ReqBranch(fPFTausName, fPFTaus);
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}
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