#include <PFMETProducerMVA.h>

Inheritance diagram for reco::PFMETProducerMVA:

Public Member Functions
	PFMETProducerMVA (const edm::ParameterSet &)

	~PFMETProducerMVA () override

Public Member Functions inherited from edm::stream::EDProducer<>
	EDProducer ()=default

bool	hasAbilityToProduceInLumis () const final

bool	hasAbilityToProduceInRuns () const final

Private Types
typedef std::vector< edm::InputTag >	vInputTag

Private Member Functions
double	chargedEnFrac (const reco::Candidate iCand, const reco::CandidateView &pfCandidates, const reco::Vertex hardScatterVertex)

double	chargedFracInCone (const reco::Candidate iCand, const reco::CandidateView &pfCandidates, const reco::Vertex hardScatterVertex, double iDRMax=0.2)

std::vector< reco::PUSubMETCandInfo >	computeJetInfo (const reco::PFJetCollection &, const edm::Handle< reco::PFJetCollection > &, const edm::ValueMap< float > &, const reco::VertexCollection &, const reco::Vertex *, const reco::JetCorrector &iCorr, edm::Event &iEvent, const edm::EventSetup &iSetup, std::vector< reco::PUSubMETCandInfo > &iLeptons, std::vector< reco::PUSubMETCandInfo > &iCands)

std::vector< reco::PUSubMETCandInfo >	computeLeptonInfo (const std::vector< edm::EDGetTokenT< reco::CandidateView > > &srcLeptons_, const reco::CandidateView &pfCandidates, const reco::Vertex *hardScatterVertex, int &lId, bool &lHasPhotons, edm::Event &iEvent)

std::vector< reco::PUSubMETCandInfo >	computePFCandidateInfo (const reco::CandidateView &, const reco::Vertex *)

std::vector< reco::Vertex::Point >	computeVertexInfo (const reco::VertexCollection &)

bool	istau (const reco::Candidate *iCand)

bool	passPFLooseId (const reco::PFJet *iJet)

void	produce (edm::Event &, const edm::EventSetup &) override

Private Attributes
double	globalThreshold_

METAlgo	metAlgo_

double	minCorrJetPt_

int	minNumLeptons_

edm::EDGetTokenT< reco::JetCorrector >	mJetCorrector_

PFMETAlgorithmMVA	mvaMEtAlgo_

bool	mvaMEtAlgo_isInitialized_

PFSpecificAlgo	pfMEtSpecificAlgo_

edm::EDGetTokenT< reco::PFJetCollection >	srcCorrJets_

edm::EDGetTokenT< edm::ValueMap< float > >	srcJetIds_

std::vector< edm::EDGetTokenT< reco::CandidateView > >	srcLeptons_

edm::EDGetTokenT< edm::View< reco::Candidate > >	srcPFCandidatesView_

edm::EDGetTokenT< reco::PFJetCollection >	srcUncorrJets_

edm::EDGetTokenT< reco::VertexCollection >	srcVertices_

bool	useType1_

int	verbosity_

Additional Inherited Members
Public Types inherited from edm::stream::EDProducer<>
typedef CacheContexts< T... >	CacheTypes

typedef CacheTypes::GlobalCache	GlobalCache

typedef AbilityChecker< T... >	HasAbility

typedef CacheTypes::LuminosityBlockCache	LuminosityBlockCache

typedef LuminosityBlockContextT< LuminosityBlockCache, RunCache, GlobalCache >	LuminosityBlockContext

typedef CacheTypes::LuminosityBlockSummaryCache	LuminosityBlockSummaryCache

typedef CacheTypes::RunCache	RunCache

typedef RunContextT< RunCache, GlobalCache >	RunContext

typedef CacheTypes::RunSummaryCache	RunSummaryCache

Detailed Description

Definition at line 45 of file PFMETProducerMVA.h.

Member Typedef Documentation

typedef std::vector<edm::InputTag> reco::PFMETProducerMVA::vInputTag

private

Definition at line 85 of file PFMETProducerMVA.h.

Constructor & Destructor Documentation

PFMETProducerMVA::PFMETProducerMVA ( const edm::ParameterSet & cfg )

Definition at line 9 of file PFMETProducerMVA.cc.

References edm::ParameterSet::exists(), edm::ParameterSet::getParameter(), globalThreshold_, minCorrJetPt_, minNumLeptons_, mJetCorrector_, srcCorrJets_, srcJetIds_, srcLeptons_, srcPFCandidatesView_, srcUncorrJets_, srcVertices_, useType1_, and verbosity_.

   : mvaMEtAlgo_(cfg),
     mvaMEtAlgo_isInitialized_(false)
 {
   srcCorrJets_     = consumes<reco::PFJetCollection>(cfg.getParameter<edm::InputTag>("srcCorrJets"));
   srcUncorrJets_   = consumes<reco::PFJetCollection>(cfg.getParameter<edm::InputTag>("srcUncorrJets"));
   srcJetIds_       = consumes<edm::ValueMap<float> >(cfg.getParameter<edm::InputTag>("srcMVAPileupJetId"));
   srcPFCandidatesView_ = consumes<reco::CandidateView>(cfg.getParameter<edm::InputTag>("srcPFCandidates"));
   srcVertices_     = consumes<reco::VertexCollection>(cfg.getParameter<edm::InputTag>("srcVertices"));
   vInputTag srcLeptonsTags = cfg.getParameter<vInputTag>("srcLeptons");
   for(vInputTag::const_iterator it=srcLeptonsTags.begin();it!=srcLeptonsTags.end();it++) {
     srcLeptons_.push_back( consumes<reco::CandidateView >( *it ) );
   }
   mJetCorrector_  = consumes<reco::JetCorrector>(cfg.getParameter<edm::InputTag>("corrector"));
   minNumLeptons_   = cfg.getParameter<int>("minNumLeptons");
 
   globalThreshold_ = cfg.getParameter<double>("globalThreshold");
 
   minCorrJetPt_    = cfg.getParameter<double>     ("minCorrJetPt");
   useType1_        = cfg.getParameter<bool>       ("useType1");
    
   verbosity_ = ( cfg.exists("verbosity") ) ?
     cfg.getParameter<int>("verbosity") : 0;
 
   produces<reco::PFMETCollection>();
 }

PFMETProducerMVA::~PFMETProducerMVA ( )

override

Definition at line 36 of file PFMETProducerMVA.cc.

36 {}

Member Function Documentation

double PFMETProducerMVA::chargedEnFrac	(	const reco::Candidate *	iCand,
		const reco::CandidateView &	pfCandidates,
		const reco::Vertex *	hardScatterVertex
	)

private

Definition at line 305 of file PFMETProducerMVA.cc.

References ALCARECOTkAlJpsiMuMu_cff::charge, chargedFracInCone(), reco::Candidate::isElectron(), reco::Candidate::isMuon(), reco::Candidate::isPhoton(), EnergyCorrector::pt, reco::PFTau::signalCands(), pat::Tau::signalCands(), and edm::PtrVectorBase::size().

Referenced by computeLeptonInfo().

                                                                                                 { 
   if(iCand->isMuon())     {
     return 1;
   }
   if(iCand->isElectron())   {
     return 1.;
   }
   if(iCand->isPhoton()  )   {return chargedFracInCone(iCand, pfCandidates,hardScatterVertex);}
   double lPtTot = 0; double lPtCharged = 0;
   const reco::PFTau *lPFTau = nullptr; 
   lPFTau = dynamic_cast<const reco::PFTau*>(iCand);
   if(lPFTau != nullptr) { 
     for (UInt_t i0 = 0; i0 < lPFTau->signalCands().size(); i0++) { 
       lPtTot += (lPFTau->signalCands())[i0]->pt(); 
       if((lPFTau->signalCands())[i0]->charge() == 0) continue;
       lPtCharged += (lPFTau->signalCands())[i0]->pt(); 
     }
   } 
   else { 
     const pat::Tau *lPatPFTau = nullptr; 
     lPatPFTau = dynamic_cast<const pat::Tau*>(iCand);
     if(lPatPFTau != nullptr) { 
       for (UInt_t i0 = 0; i0 < lPatPFTau->signalCands().size(); i0++) { 
     lPtTot += (lPatPFTau->signalCands())[i0]->pt(); 
     if((lPatPFTau->signalCands())[i0]->charge() == 0) continue;
     lPtCharged += (lPatPFTau->signalCands())[i0]->pt(); 
       }
     }
   }
   if(lPtTot == 0) lPtTot = 1.;
   return lPtCharged/lPtTot;
 }

double PFMETProducerMVA::chargedFracInCone	(	const reco::Candidate *	iCand,
		const reco::CandidateView &	pfCandidates,
		const reco::Vertex *	hardScatterVertex,
		double	iDRMax = `0.2`
	)

private

Definition at line 356 of file PFMETProducerMVA.cc.

References funct::abs(), edm::View< T >::begin(), DEFINE_FWK_MODULE, reco::deltaR2(), pat::PackedCandidate::dz(), edm::View< T >::end(), reco::PFCandidate::gsfTrackRef(), edm::Ref< C, T, F >::isNonnull(), reco::Candidate::p4(), reco::Vertex::position(), reco::Candidate::pt(), and reco::PFCandidate::trackRef().

Referenced by chargedEnFrac().

 {
   double iDR2Max = iDRMax*iDRMax;
   reco::Candidate::LorentzVector lVis(0,0,0,0);
   for ( reco::CandidateView::const_iterator pfCandidate = pfCandidates.begin();
     pfCandidate != pfCandidates.end(); ++pfCandidate ) {
     if(deltaR2(iCand->p4(),pfCandidate->p4()) > iDR2Max)  continue;
     double dZ = -999.; // PH: If no vertex is reconstructed in the event
                        //     or PFCandidate has no track, set dZ to -999
     if ( hardScatterVertex ) {
       const reco::PFCandidate* pfc = dynamic_cast<const reco::PFCandidate* >( (&(*pfCandidate)) );
       if( pfc != nullptr ) { //PF candidate for RECO and PAT levels
     if      ( pfc->trackRef().isNonnull()    ) dZ = std::abs(pfc->trackRef()->dz(hardScatterVertex->position()));
     else if ( pfc->gsfTrackRef().isNonnull() ) dZ = std::abs(pfc->gsfTrackRef()->dz(hardScatterVertex->position()));
       }
       else { //if not, then packedCandidate for miniAOD level
     const pat::PackedCandidate* pfc = dynamic_cast<const pat::PackedCandidate* >( &(*pfCandidate) );
     dZ = std::abs( pfc->dz( hardScatterVertex->position() ) );
       }
     }
     if(std::abs(dZ) > 0.1) continue; 
     lVis += pfCandidate->p4();
   }
   return lVis.pt()/iCand->pt();
 }

std::vector< reco::PUSubMETCandInfo > PFMETProducerMVA::computeJetInfo	(	const reco::PFJetCollection &	uncorrJets,
		const edm::Handle< reco::PFJetCollection > &	corrJets,
		const edm::ValueMap< float > &	jetIds,
		const reco::VertexCollection &	vertices,
		const reco::Vertex *	hardScatterVertex,
		const reco::JetCorrector &	iCorr,
		edm::Event &	iEvent,
		const edm::EventSetup &	iSetup,
		std::vector< reco::PUSubMETCandInfo > &	iLeptons,
		std::vector< reco::PUSubMETCandInfo > &	iCands
	)

private

Definition at line 191 of file PFMETProducerMVA.cc.

References funct::abs(), reco::PUSubMETCandInfo::chargedEnFrac(), reco::JetCorrector::correction(), reco::deltaR2(), dR2Max, dR2Min, minCorrJetPt_, reco::PUSubMETCandInfo::p4(), p4, passPFLooseId(), reco::PUSubMETCandInfo::setChargedEnFrac(), reco::PUSubMETCandInfo::setDZ(), reco::PUSubMETCandInfo::setMvaVal(), reco::PUSubMETCandInfo::setP4(), jetUpdater_cfi::sort, and useType1_.

Referenced by produce().

 {
   std::vector<reco::PUSubMETCandInfo> retVal;
   for ( reco::PFJetCollection::const_iterator uncorrJet = uncorrJets.begin();
     uncorrJet != uncorrJets.end(); ++uncorrJet ) {
     // for ( reco::PFJetCollection::const_iterator corrJet = corrJets.begin();
     //    corrJet != corrJets.end(); ++corrJet ) {
     auto corrJet = corrJets->begin();
     for( size_t cjIdx=0;cjIdx<corrJets->size();++cjIdx, ++corrJet) {
       reco::PFJetRef corrJetRef( corrJets, cjIdx );
 
       // match corrected and uncorrected jets
       if ( uncorrJet->jetArea() != corrJet->jetArea() ) continue;
       if ( deltaR2(corrJet->p4(),uncorrJet->p4()) > dR2Min ) continue;
 
       // check that jet passes loose PFJet id.
       if(!passPFLooseId(&(*uncorrJet))) continue;
 
       // compute jet energy correction factor
       // (= ratio of corrected/uncorrected jet Pt)
       //double jetEnCorrFactor = corrJet->pt()/uncorrJet->pt();
       reco::PUSubMETCandInfo jetInfo;
       
       // PH: apply jet energy corrections for all Jets ignoring recommendations
       jetInfo.setP4( corrJet->p4() );
       double lType1Corr = 0;
       if(useType1_) { //Compute the type 1 correction ===> This code is crap 
     double pCorr = iCorrector.correction(*uncorrJet);
     lType1Corr = std::abs(corrJet->pt()-pCorr*uncorrJet->pt());
     TLorentzVector pVec; pVec.SetPtEtaPhiM(lType1Corr,0,corrJet->phi(),0); 
     reco::Candidate::LorentzVector pType1Corr; pType1Corr.SetCoordinates(pVec.Px(),pVec.Py(),pVec.Pz(),pVec.E());
     //Filter to leptons
     bool pOnLepton = false;
     for(unsigned int i0 = 0; i0 < iLeptons.size(); i0++) {
       if(deltaR2(iLeptons[i0].p4(),corrJet->p4()) < dR2Max) {pOnLepton = true; break;}
     }   
     //Add it to PF Collection
     if(corrJet->pt() > 10 && !pOnLepton) {
       reco::PUSubMETCandInfo pfCandidateInfo;
       pfCandidateInfo.setP4( pType1Corr );
       pfCandidateInfo.setDZ( -999 );
       iCands.push_back(pfCandidateInfo);
     }
     //Scale
     lType1Corr = (pCorr*uncorrJet->pt()-uncorrJet->pt());
     lType1Corr /=corrJet->pt();
       }
       
       // check that jet Pt used to compute MVA based jet id. is above threshold
       if ( !(jetInfo.p4().pt() > minCorrJetPt_) ) continue;
 
     
       jetInfo.setMvaVal( jetIds[ corrJetRef ] );
       float chEnF = (uncorrJet->chargedEmEnergy() + uncorrJet->chargedHadronEnergy() + uncorrJet->chargedMuEnergy() )/uncorrJet->energy();
       if(useType1_) chEnF += lType1Corr*(1-jetInfo.chargedEnFrac() );
       jetInfo.setChargedEnFrac( chEnF ); 
       retVal.push_back(jetInfo);
       break;
     }
   }
 
   //order jets per pt
   std::sort( retVal.begin(), retVal.end() );
 
   return retVal;
 }

std::vector< reco::PUSubMETCandInfo > PFMETProducerMVA::computeLeptonInfo	(	const std::vector< edm::EDGetTokenT< reco::CandidateView > > &	srcLeptons_,
		const reco::CandidateView &	pfCandidates,
		const reco::Vertex *	hardScatterVertex,
		int &	lId,
		bool &	lHasPhotons,
		edm::Event &	iEvent
	)

private

Definition at line 141 of file PFMETProducerMVA.cc.

References funct::abs(), edm::View< T >::begin(), chargedEnFrac(), reco::deltaR2(), dPtMatch, dR2Max, edm::View< T >::end(), edm::Event::getByToken(), istau(), AK4CaloJetsMCFlavour_cff::leptonInfo, AK4GenJetFlavourInfos_cfi::leptons, reco::PUSubMETCandInfo::setChargedEnFrac(), reco::PUSubMETCandInfo::setP4(), and srcLeptons_.

Referenced by produce().

                                                                  {
 
   std::vector<reco::PUSubMETCandInfo> leptonInfo;
 
   for ( std::vector<edm::EDGetTokenT<reco::CandidateView > >::const_iterator srcLeptons_i = srcLeptons_.begin();
     srcLeptons_i != srcLeptons_.end(); ++srcLeptons_i ) {
     edm::Handle<reco::CandidateView> leptons;
     evt.getByToken(*srcLeptons_i, leptons);
     for ( reco::CandidateView::const_iterator lepton1 = leptons->begin();
       lepton1 != leptons->end(); ++lepton1 ) {
       bool pMatch = false;
       for ( std::vector<edm::EDGetTokenT<reco::CandidateView> >::const_iterator srcLeptons_j = srcLeptons_.begin();
         srcLeptons_j != srcLeptons_.end(); ++srcLeptons_j ) {
     edm::Handle<reco::CandidateView> leptons2;
     evt.getByToken(*srcLeptons_j, leptons2);
     for ( reco::CandidateView::const_iterator lepton2 = leptons2->begin();
           lepton2 != leptons2->end(); ++lepton2 ) {
       if(&(*lepton1) == &(*lepton2)) { continue; }
       if(deltaR2(lepton1->p4(),lepton2->p4()) < dR2Max) { pMatch = true; }
       if(pMatch &&     !istau(&(*lepton1)) &&  istau(&(*lepton2))) { pMatch = false; }
       if(pMatch &&    ( (istau(&(*lepton1)) && istau(&(*lepton2))) || (!istau(&(*lepton1)) && !istau(&(*lepton2)))) 
          &&     lepton1->pt() > lepton2->pt()) { pMatch = false; }
       if(pMatch && lepton1->pt() == lepton2->pt()) {
         pMatch = false;
         for(unsigned int i0 = 0; i0 < leptonInfo.size(); i0++) {
           if(std::abs(lepton1->pt() - leptonInfo[i0].p4().pt()) < dPtMatch) { pMatch = true; break; }
         }
       }
       if(pMatch) break;
     }
     if(pMatch) break;
       }
       if(pMatch) continue;
       reco::PUSubMETCandInfo pLeptonInfo;
       pLeptonInfo.setP4( lepton1->p4() );
       pLeptonInfo.setChargedEnFrac( chargedEnFrac(&(*lepton1),pfCandidates_view,hardScatterVertex) );
       leptonInfo.push_back(pLeptonInfo); 
       if(lepton1->isPhoton()) { lHasPhotons = true; }
     }
     lId++;
   }
  
   return leptonInfo;
 }

std::vector< reco::PUSubMETCandInfo > PFMETProducerMVA::computePFCandidateInfo	(	const reco::CandidateView &	pfCandidates,
		const reco::Vertex *	hardScatterVertex
	)

private

Definition at line 264 of file PFMETProducerMVA.cc.

References funct::abs(), edm::View< T >::begin(), pat::PackedCandidate::dz(), edm::View< T >::end(), reco::PFCandidate::gsfTrackRef(), edm::Ref< C, T, F >::isNonnull(), reco::Vertex::position(), reco::PUSubMETCandInfo::setDZ(), reco::PUSubMETCandInfo::setP4(), and reco::PFCandidate::trackRef().

Referenced by produce().

 {
   std::vector<reco::PUSubMETCandInfo> retVal;
   for ( reco::CandidateView::const_iterator pfCandidate = pfCandidates.begin();
     pfCandidate != pfCandidates.end(); ++pfCandidate ) {
     double dZ = -999.; // PH: If no vertex is reconstructed in the event
                        //     or PFCandidate has no track, set dZ to -999
     if ( hardScatterVertex ) {
       const reco::PFCandidate* pfc = dynamic_cast<const reco::PFCandidate* >( &(*pfCandidate) );
       if( pfc != nullptr ) { //PF candidate for RECO and PAT levels
     if      ( pfc->trackRef().isNonnull()    ) dZ = std::abs(pfc->trackRef()->dz(hardScatterVertex->position()));
     else if ( pfc->gsfTrackRef().isNonnull() ) dZ = std::abs(pfc->gsfTrackRef()->dz(hardScatterVertex->position()));
       }
       else { //if not, then packedCandidate for miniAOD level
     const pat::PackedCandidate* pfc = dynamic_cast<const pat::PackedCandidate* >( &(*pfCandidate) );
     dZ = std::abs( pfc->dz( hardScatterVertex->position() ) );
     //exact dz=zero corresponds to the -999 case for pfcandidate
     if(dZ==0) {dZ=-999;}
       }
     }
     reco::PUSubMETCandInfo pfCandidateInfo;
     pfCandidateInfo.setP4( pfCandidate->p4() );
     pfCandidateInfo.setDZ( dZ );
     retVal.push_back(pfCandidateInfo);
   }
   return retVal;
 }

std::vector< reco::Vertex::Point > PFMETProducerMVA::computeVertexInfo ( const reco::VertexCollection & vertices )

private

Definition at line 293 of file PFMETProducerMVA.cc.

References funct::abs().

Referenced by produce().

 {
   std::vector<reco::Vertex::Point> retVal;
   for ( reco::VertexCollection::const_iterator vertex = vertices.begin();
     vertex != vertices.end(); ++vertex ) {
     if(std::abs(vertex->z())           > 24.) continue;
     if(vertex->ndof()              <  4.) continue;
     if(vertex->position().Rho()    >  2.) continue;
     retVal.push_back(vertex->position());
   }
   return retVal;
 }

bool PFMETProducerMVA::istau ( const reco::Candidate * iCand )

private

Definition at line 339 of file PFMETProducerMVA.cc.

References reco::Candidate::isElectron(), reco::Candidate::isMuon(), and reco::Candidate::isPhoton().

Referenced by computeLeptonInfo().

                                                        { 
   if(iCand->isMuon())     return false;
   if(iCand->isElectron()) return false;
   if(iCand->isPhoton())   return false;
   return true;
 }

bool PFMETProducerMVA::passPFLooseId ( const reco::PFJet * iJet )

private

Definition at line 345 of file PFMETProducerMVA.cc.

References funct::abs(), reco::PFJet::chargedEmEnergy(), reco::PFJet::chargedHadronEnergy(), reco::PFJet::chargedMultiplicity(), reco::LeafCandidate::energy(), reco::LeafCandidate::eta(), reco::Jet::nConstituents(), reco::PFJet::neutralEmEnergy(), and reco::PFJet::neutralHadronEnergy().

Referenced by computeJetInfo().

                                                       { 
   if(iJet->energy()== 0)                                  return false;
   if(iJet->neutralHadronEnergy()/iJet->energy() > 0.99)   return false;
   if(iJet->neutralEmEnergy()/iJet->energy()     > 0.99)   return false;
   if(iJet->nConstituents() <  2)                          return false;
   if(iJet->chargedHadronEnergy()/iJet->energy() <= 0 && std::abs(iJet->eta()) < 2.4 ) return false;
   if(iJet->chargedEmEnergy()/iJet->energy() >  0.99  && std::abs(iJet->eta()) < 2.4 ) return false;
   if(iJet->chargedMultiplicity()            < 1      && std::abs(iJet->eta()) < 2.4 ) return false;
   return true;
 }

void PFMETProducerMVA::produce	(	edm::Event &	evt,
		const edm::EventSetup &	es
	)

overrideprivate

Definition at line 38 of file PFMETProducerMVA.cc.

References computeJetInfo(), computeLeptonInfo(), computePFCandidateInfo(), computeVertexInfo(), mitigatedMETSequence_cff::corrector, PFMETAlgorithmMVA::evaluateMVA(), edm::EventID::event(), edm::Event::getByToken(), PFMETAlgorithmMVA::getMEt(), PFMETAlgorithmMVA::getMEtCov(), globalThreshold_, edm::EventBase::id(), PFMETAlgorithmMVA::initialize(), AK4CaloJetsMCFlavour_cff::leptonInfo, AK4GenJetFlavourInfos_cfi::leptons, LogDebug, edm::EventBase::luminosityBlock(), CommonMETData::met, metAlgo_, CommonMETData::mex, CommonMETData::mey, minNumLeptons_, mJetCorrector_, eostools::move(), mvaMEtAlgo_, mvaMEtAlgo_isInitialized_, p4, reco::LeafCandidate::p4(), pfMEtSpecificAlgo_, reco::LeafCandidate::phi(), reco::LeafCandidate::pt(), edm::Event::put(), reco::LeafCandidate::px(), reco::LeafCandidate::py(), PFSpecificAlgo::run(), METAlgo::run(), edm::EventID::run(), PFMETAlgorithmMVA::setHasPhotons(), PFMETAlgorithmMVA::setInput(), reco::LeafCandidate::setP4(), reco::MET::setSignificanceMatrix(), edm::View< T >::size(), srcCorrJets_, srcJetIds_, srcLeptons_, srcPFCandidatesView_, srcUncorrJets_, srcVertices_, CommonMETData::sumet, useType1_, electrons_cff::vertices, and extraflags_cff::vtx.

 { 
   // CV: check if the event is to be skipped
   if ( minNumLeptons_ > 0 ) {
     int numLeptons = 0;
     for ( std::vector<edm::EDGetTokenT<reco::CandidateView> >::const_iterator srcLeptons_i = srcLeptons_.begin();
       srcLeptons_i != srcLeptons_.end(); ++srcLeptons_i ) {
       edm::Handle<reco::CandidateView> leptons;
       evt.getByToken(*srcLeptons_i, leptons);
       numLeptons += leptons->size();
     }
     if ( !(numLeptons >= minNumLeptons_) ) {
       LogDebug( "produce" )
     << "<PFMETProducerMVA::produce>:" << std::endl
     << "Run: " << evt.id().run() << ", LS: " << evt.luminosityBlock()  << ", Event: " << evt.id().event() << std::endl
     << " numLeptons = " << numLeptons << ", minNumLeptons = " << minNumLeptons_ << " --> skipping !!" << std::endl;
       
       reco::PFMET pfMEt;
       auto pfMEtCollection = std::make_unique<reco::PFMETCollection>();
       pfMEtCollection->push_back(pfMEt);
       evt.put(std::move(pfMEtCollection));
       return;
     }
   }
 
   //get jet IDs
   edm::Handle<edm::ValueMap<float> > jetIds;
   evt.getByToken(srcJetIds_, jetIds);
 
   // get jets (corrected and uncorrected)
   edm::Handle<reco::PFJetCollection> corrJets;
   evt.getByToken(srcCorrJets_, corrJets);
 
   edm::Handle<reco::PFJetCollection> uncorrJets;
   evt.getByToken(srcUncorrJets_, uncorrJets);
 
   edm::Handle<reco::JetCorrector> corrector;
   if( useType1_ )
   {
     evt.getByToken(mJetCorrector_, corrector); 
   }
   
   edm::Handle<reco::CandidateView> pfCandidates_view;
   evt.getByToken(srcPFCandidatesView_, pfCandidates_view);
 
   // get vertices
   edm::Handle<reco::VertexCollection> vertices;
   evt.getByToken(srcVertices_, vertices); 
   // take vertex with highest sum(trackPt) as the vertex of the "hard scatter" interaction
   // (= first entry in vertex collection)
   const reco::Vertex* hardScatterVertex = ( !vertices->empty() ) ?
     &(vertices->front()) : nullptr;
   
   // get leptons
   // (excluded from sum over PFCandidates when computing hadronic recoil)
   int  lId         = 0;
   bool lHasPhotons = false;
   std::vector<reco::PUSubMETCandInfo> leptonInfo = computeLeptonInfo(srcLeptons_,*pfCandidates_view,hardScatterVertex, lId, lHasPhotons,
                                      evt);
 
   // initialize MVA MET algorithm
   // (this will load the BDTs, stored as GBRForrest objects;
   //  either in input ROOT files or in SQL-lite files/the Conditions Database) 
   if ( !mvaMEtAlgo_isInitialized_ ) {
     mvaMEtAlgo_.initialize(es);
     mvaMEtAlgo_isInitialized_ = true;
   }
 
   // reconstruct "standard" particle-flow missing Et
   CommonMETData pfMEt_data = metAlgo_.run( (*pfCandidates_view), globalThreshold_);
   SpecificPFMETData specificPfMET = pfMEtSpecificAlgo_.run( (*pfCandidates_view) );
   const reco::Candidate::LorentzVector p4( pfMEt_data.mex, pfMEt_data.mey, 0.0, pfMEt_data.met);
   const reco::Candidate::Point vtx(0.0, 0.0, 0.0 );
   reco::PFMET pfMEt(specificPfMET,pfMEt_data.sumet, p4, vtx);
   reco::Candidate::LorentzVector pfMEtP4_original = pfMEt.p4();
    
   // compute objects specific to MVA based MET reconstruction
   std::vector<reco::PUSubMETCandInfo> pfCandidateInfo = computePFCandidateInfo(*pfCandidates_view, hardScatterVertex);
   std::vector<reco::PUSubMETCandInfo>    jetInfo         = computeJetInfo(*uncorrJets, corrJets, *jetIds, *vertices, hardScatterVertex, *corrector,evt,es,leptonInfo,pfCandidateInfo);
   std::vector<reco::Vertex::Point>         vertexInfo      = computeVertexInfo(*vertices);
   // compute MVA based MET and estimate of its uncertainty
   mvaMEtAlgo_.setInput(leptonInfo, jetInfo, pfCandidateInfo, vertexInfo);
   mvaMEtAlgo_.setHasPhotons(lHasPhotons);
   mvaMEtAlgo_.evaluateMVA();
   pfMEt.setP4(mvaMEtAlgo_.getMEt());
   pfMEt.setSignificanceMatrix(mvaMEtAlgo_.getMEtCov());
   
   LogDebug("produce")
     << "Run: " << evt.id().run() << ", LS: " << evt.luminosityBlock()  << ", Event: " << evt.id().event() << std::endl
     << " PFMET: Pt = " << pfMEtP4_original.pt() << ", phi = " << pfMEtP4_original.phi() << " "
     << "(Px = " << pfMEtP4_original.px() << ", Py = " << pfMEtP4_original.py() << ")" << std::endl
     << " MVA MET: Pt = " << pfMEt.pt() << " phi = " << pfMEt.phi() << " (Px = " << pfMEt.px() << ", Py = " << pfMEt.py() << ")" << std::endl
     << " Cov:" << std::endl
     <<(mvaMEtAlgo_.getMEtCov())(0,0)<<"  "<<(mvaMEtAlgo_.getMEtCov())(0,1)<<std::endl
     <<(mvaMEtAlgo_.getMEtCov())(1,0)<<"  "<<(mvaMEtAlgo_.getMEtCov())(1,1)<<std::endl  << std::endl;
  
   // add PFMET object to the event
   auto pfMEtCollection = std::make_unique<reco::PFMETCollection>();
   pfMEtCollection->push_back(pfMEt);
   evt.put(std::move(pfMEtCollection));
 }