SmearedJetProducer_namespace::GenJetMatcherT< pat::Jet > Class Template Reference

Public Member Functions
	GenJetMatcherT (const edm::ParameterSet &cfg)
const reco::GenJet *	operator() (const pat::Jet &jet, edm::Event *evt=0) const
	~GenJetMatcherT ()

Private Attributes
TFormula *	dRmaxGenJetMatch_

Detailed Description

template<>
class SmearedJetProducer_namespace::GenJetMatcherT< pat::Jet >

Definition at line 15 of file SmearedPATJetProducer.cc.

Constructor & Destructor Documentation

SmearedJetProducer_namespace::GenJetMatcherT< pat::Jet >::GenJetMatcherT ( const edm::ParameterSet &  cfg )

inline

Definition at line 19 of file SmearedPATJetProducer.cc.

References data, SmearedJetProducer_namespace::GenJetMatcherT< T >::dRmaxGenJetMatch_, and edm::ParameterSet::getParameter().

       : dRmaxGenJetMatch_(0)
     {
       TString dRmaxGenJetMatch_formula = cfg.getParameter<std::string>("dRmaxGenJetMatch").data();
       dRmaxGenJetMatch_formula.ReplaceAll("genJetPt", "x");
       dRmaxGenJetMatch_ = new TFormula("dRmaxGenJetMatch", dRmaxGenJetMatch_formula.Data());
     }

SmearedJetProducer_namespace::GenJetMatcherT< pat::Jet >::~GenJetMatcherT ( )

inline

Definition at line 26 of file SmearedPATJetProducer.cc.

References SmearedJetProducer_namespace::GenJetMatcherT< T >::dRmaxGenJetMatch_.

     {
       delete dRmaxGenJetMatch_;
     }

Member Function Documentation

const reco::GenJet* SmearedJetProducer_namespace::GenJetMatcherT< pat::Jet >::operator() ( const pat::Jet &  jet, edm::Event *  evt = 0  ) const

inline

Definition at line 31 of file SmearedPATJetProducer.cc.

References deltaR(), PFRecoTauDiscriminationAgainstElectronDeadECAL_cfi::dR, pat::Jet::genJet(), reco::LeafCandidate::p4(), and reco::LeafCandidate::pt().

     {
       const reco::GenJet* retVal = 0;

       // CV: apply matching criterion which is tighter than PAT default,
       //     in order to avoid "accidental" matches for which the difference between genJetPt and recJetPt is large 
       //    (the large effect of such bad matches on the MEt smearing is "unphysical",
       //     because the large difference between genJetPt and recJetPt results from the matching
       //     and not from the particle/jet reconstruction)
       //retVal = jet.genJet();
       if ( jet.genJet() ) {
     const reco::GenJet* genJet = jet.genJet();
     double dR = deltaR(jet.p4(), genJet->p4());
     if ( dR < dRmaxGenJetMatch_->Eval(genJet->pt()) ) retVal = genJet;
       }
       
       return retVal;
     }

Member Data Documentation

TFormula* SmearedJetProducer_namespace::GenJetMatcherT< pat::Jet >::dRmaxGenJetMatch_

private

Definition at line 52 of file SmearedPATJetProducer.cc.