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// $Id: TauCleaningMod.cc,v 1.2 2009/04/08 17:48:13 ceballos Exp $
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#include "MitPhysics/Mods/interface/TauCleaningMod.h"
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#include "MitCommon/MathTools/interface/MathUtils.h"
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#include "MitPhysics/Init/interface/ModNames.h"
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using namespace mithep;
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ClassImp(mithep::TauCleaningMod)
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//--------------------------------------------------------------------------------------------------
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TauCleaningMod::TauCleaningMod(const char *name, const char *title) :
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BaseMod(name,title),
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fCleanElectronsName(ModNames::gkCleanElectronsName),
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fCleanMuonsName(ModNames::gkCleanMuonsName),
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fGoodTausName(ModNames::gkGoodTausName),
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fCleanCaloTausName(ModNames::gkCleanTausName),
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fMinDeltaRToElectron(0.3),
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fMinDeltaRToMuon(0.3)
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{
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// Constructor.
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}
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//--------------------------------------------------------------------------------------------------
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void TauCleaningMod::Process()
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{
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// Process entries of the tree.
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// get input collections
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const CaloTauCol *GoodTaus = GetObjThisEvt<CaloTauCol>(fGoodTausName);
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const ElectronCol *CleanElectrons = GetObjThisEvt<ElectronCol>(fCleanElectronsName);
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const MuonCol *CleanMuons = GetObjThisEvt<MuonCol>(fCleanMuonsName);
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// create output collection
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CaloTauOArr *CleanCaloTaus = new CaloTauOArr;
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CleanCaloTaus->SetName(fCleanCaloTausName);
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// remove any Tau that overlaps in eta, phi with an isolated electron.
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UInt_t n = GoodTaus->GetEntries();
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for (UInt_t i=0; i<n; ++i) {
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const CaloTau *tau = GoodTaus->At(i);
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Bool_t isElectronOverlap = false;
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// check for overlap with an electron
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if (CleanElectrons) {
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UInt_t n1 = CleanElectrons->GetEntries();
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for (UInt_t j=0; j<n1; j++) {
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Double_t deltaR = MathUtils::DeltaR(CleanElectrons->At(j)->Mom(),
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tau->SourceCaloJet()->Mom());
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if (deltaR < fMinDeltaRToElectron) {
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isElectronOverlap = kTRUE;
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break;
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}
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}
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}
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if (isElectronOverlap)
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continue;
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Bool_t isMuonOverlap = false;
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// check for overlap with an Muon
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if (CleanMuons) {
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UInt_t n2 = CleanMuons->GetEntries();
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for (UInt_t j=0; j<n2; j++) {
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Double_t deltaR = MathUtils::DeltaR(CleanMuons->At(j)->Mom(),
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tau->SourceCaloJet()->Mom());
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if (deltaR < fMinDeltaRToMuon) {
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isMuonOverlap = kTRUE;
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break;
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}
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}
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}
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if (isMuonOverlap)
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continue;
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CleanCaloTaus->Add(tau);
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}
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// sort according to pt
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CleanCaloTaus->Sort();
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// add to event for other modules to use
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AddObjThisEvt(CleanCaloTaus);
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}
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