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CaloJetMETcorrInputProducerT< T, Textractor > Class Template Reference

#include <CaloJetMETcorrInputProducerT.h>

Inheritance diagram for CaloJetMETcorrInputProducerT< T, Textractor >:
edm::EDProducer edm::ProducerBase edm::ProductRegistryHelper

List of all members.

Public Member Functions

 CaloJetMETcorrInputProducerT (const edm::ParameterSet &cfg)
 ~CaloJetMETcorrInputProducerT ()

Private Member Functions

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

Private Attributes

double jetCorrEtaMax_
Textractor jetCorrExtractor_
std::string jetCorrLabel_
std::string moduleLabel_
std::string offsetCorrLabel_
bool skipEM_
double skipEMfractionThreshold_
edm::InputTag src_
edm::InputTag srcMET_
double type1JetPtThreshold_

Detailed Description

template<typename T, typename Textractor>
class CaloJetMETcorrInputProducerT< T, Textractor >

Definition at line 60 of file CaloJetMETcorrInputProducerT.h.

Constructor & Destructor Documentation

template<typename T , typename Textractor >
CaloJetMETcorrInputProducerT< T, Textractor >::CaloJetMETcorrInputProducerT ( const edm::ParameterSet &  cfg) [inline, explicit]

Definition at line 64 of file CaloJetMETcorrInputProducerT.h.

References edm::ParameterSet::exists(), edm::ParameterSet::getParameter(), CaloJetMETcorrInputProducerT< T, Textractor >::jetCorrEtaMax_, CaloJetMETcorrInputProducerT< T, Textractor >::jetCorrLabel_, CaloJetMETcorrInputProducerT< T, Textractor >::offsetCorrLabel_, CaloJetMETcorrInputProducerT< T, Textractor >::skipEM_, CaloJetMETcorrInputProducerT< T, Textractor >::skipEMfractionThreshold_, CaloJetMETcorrInputProducerT< T, Textractor >::src_, CaloJetMETcorrInputProducerT< T, Textractor >::srcMET_, and CaloJetMETcorrInputProducerT< T, Textractor >::type1JetPtThreshold_.

    : moduleLabel_(cfg.getParameter<std::string>("@module_label"))
  {
    src_ = cfg.getParameter<edm::InputTag>("src");

    offsetCorrLabel_ = ( cfg.exists("offsetCorrLabel") ) ?
      cfg.getParameter<std::string>("offsetCorrLabel") : "";
    jetCorrLabel_ = cfg.getParameter<std::string>("jetCorrLabel");

    jetCorrEtaMax_ = ( cfg.exists("jetCorrEtaMax") ) ?
      cfg.getParameter<double>("jetCorrEtaMax") : 9.9;

    type1JetPtThreshold_ = cfg.getParameter<double>("type1JetPtThreshold");

    skipEM_ = cfg.getParameter<bool>("skipEM");
    if ( skipEM_ ) {
      skipEMfractionThreshold_ = cfg.getParameter<double>("skipEMfractionThreshold");
    }

    if ( cfg.exists("srcMET") ) {
      srcMET_ = cfg.getParameter<edm::InputTag>("srcMET");
    }

    produces<CorrMETData>("type1");
    produces<CorrMETData>("type2");
    produces<CorrMETData>("offset");
  }
template<typename T , typename Textractor >
CaloJetMETcorrInputProducerT< T, Textractor >::~CaloJetMETcorrInputProducerT ( ) [inline]

Definition at line 91 of file CaloJetMETcorrInputProducerT.h.

{}

Member Function Documentation

template<typename T , typename Textractor >
void CaloJetMETcorrInputProducerT< T, Textractor >::produce ( edm::Event &  evt,
const edm::EventSetup &  es 
) [inline, private, virtual]

Implements edm::EDProducer.

Definition at line 95 of file CaloJetMETcorrInputProducerT.h.

References edm::Event::getByLabel(), CaloJetMETcorrInputProducerT< T, Textractor >::jetCorrEtaMax_, CaloJetMETcorrInputProducerT< T, Textractor >::jetCorrExtractor_, CaloJetMETcorrInputProducerT< T, Textractor >::jetCorrLabel_, fwrapper::jets, edm::InputTag::label(), CaloMET_cfi::met, CaloJetMETcorrInputProducerT< T, Textractor >::offsetCorrLabel_, edm::Event::put(), CaloJetMETcorrInputProducerT< T, Textractor >::skipEM_, CaloJetMETcorrInputProducerT< T, Textractor >::skipEMfractionThreshold_, CaloJetMETcorrInputProducerT< T, Textractor >::src_, CaloJetMETcorrInputProducerT< T, Textractor >::srcMET_, and CaloJetMETcorrInputProducerT< T, Textractor >::type1JetPtThreshold_.

  {
    std::auto_ptr<CorrMETData> type1Correction(new CorrMETData());
    std::auto_ptr<CorrMETData> unclEnergySum(new CorrMETData());
    std::auto_ptr<CorrMETData> offsetEnergySum(new CorrMETData());

    typedef std::vector<T> JetCollection;
    edm::Handle<JetCollection> jets;
    evt.getByLabel(src_, jets);

    typedef edm::View<reco::MET> METView;
    edm::Handle<METView> met;
    if ( srcMET_.label() != "" ) {
      evt.getByLabel(srcMET_, met);
      if ( met->size() != 1 )
        throw cms::Exception("CaloJetMETcorrInputProducer::produce") 
          << "Failed to find unique MET in the event, src = " << srcMET_.label() << " !!\n";

//--- compute "unclustered energy" by sutracting from the reconstructed MET 
//   (i.e. from the negative vectorial sum of all particles reconstructed in the event)
//    the momenta of (high Pt) jets which enter Type 1 MET corrections 
//
//    NOTE: MET = -(jets + muons + "unclustered energy"),
//          so "unclustered energy" = -(MET + jets + muons),
//          i.e. (high Pt) jets enter the sum of "unclustered energy" with negative sign.
//
      unclEnergySum->mex   = -met->front().px();
      unclEnergySum->mey   = -met->front().py();
      unclEnergySum->sumet =  met->front().sumEt();
    }

    int numJets = jets->size();
    for ( int jetIndex = 0; jetIndex < numJets; ++jetIndex ) {
      const T& rawJet = jets->at(jetIndex);

      static CaloJetMETcorrInputProducer_namespace::InputTypeCheckerT<T> checkInputType;
      checkInputType(rawJet);

      static CaloJetMETcorrInputProducer_namespace::RawJetExtractorT<T> rawJetExtractor;
      reco::Candidate::LorentzVector rawJetP4 = rawJetExtractor(rawJet);
      
      reco::Candidate::LorentzVector corrJetP4 = jetCorrExtractor_(rawJet, jetCorrLabel_, &evt, &es, jetCorrEtaMax_);

      if ( corrJetP4.pt() > type1JetPtThreshold_ ) {
        
        unclEnergySum->mex   -= rawJetP4.px();
        unclEnergySum->mey   -= rawJetP4.py();
        unclEnergySum->sumet -= rawJetP4.Et();
        
        if ( skipEM_ && rawJet.emEnergyFraction() > skipEMfractionThreshold_ ) continue;
        
        reco::Candidate::LorentzVector rawJetP4offsetCorr = rawJetP4;
        if ( offsetCorrLabel_ != "" ) {
          rawJetP4offsetCorr = jetCorrExtractor_(rawJet, offsetCorrLabel_, &evt, &es, jetCorrEtaMax_);
          
          offsetEnergySum->mex   += (rawJetP4.px() - rawJetP4offsetCorr.px());
          offsetEnergySum->mey   += (rawJetP4.py() - rawJetP4offsetCorr.py());
          offsetEnergySum->sumet += (rawJetP4.Et() - rawJetP4offsetCorr.Et());
        }

//--- MET balances momentum of reconstructed particles,
//    hence correction to jets and corresponding Type 1 MET correction are of opposite sign
        type1Correction->mex   -= (corrJetP4.px() - rawJetP4offsetCorr.px());
        type1Correction->mey   -= (corrJetP4.py() - rawJetP4offsetCorr.py());
        type1Correction->sumet += (corrJetP4.Et() - rawJetP4offsetCorr.Et());
      } 
    }

//--- add 
//     o Type 1 MET correction                (difference corrected-uncorrected jet energy for jets of (corrected) Pt > 20 GeV)
//     o momentum sum of "unclustered energy" (jets of (corrected) Pt < 20 GeV)
//     o momentum sum of "offset energy"      (sum of energy attributed to pile-up/underlying event)
//    to the event
    evt.put(type1Correction, "type1");
    evt.put(unclEnergySum,   "type2");
    evt.put(offsetEnergySum, "offset");
  }

Member Data Documentation

template<typename T , typename Textractor >
double CaloJetMETcorrInputProducerT< T, Textractor >::jetCorrEtaMax_ [private]

Definition at line 181 of file CaloJetMETcorrInputProducerT.h.

Referenced by CaloJetMETcorrInputProducerT< T, Textractor >::CaloJetMETcorrInputProducerT(), and CaloJetMETcorrInputProducerT< T, Textractor >::produce().

template<typename T , typename Textractor >
Textractor CaloJetMETcorrInputProducerT< T, Textractor >::jetCorrExtractor_ [private]

Definition at line 179 of file CaloJetMETcorrInputProducerT.h.

Referenced by CaloJetMETcorrInputProducerT< T, Textractor >::produce().

template<typename T , typename Textractor >
std::string CaloJetMETcorrInputProducerT< T, Textractor >::jetCorrLabel_ [private]

Definition at line 178 of file CaloJetMETcorrInputProducerT.h.

Referenced by CaloJetMETcorrInputProducerT< T, Textractor >::CaloJetMETcorrInputProducerT(), and CaloJetMETcorrInputProducerT< T, Textractor >::produce().

template<typename T , typename Textractor >
std::string CaloJetMETcorrInputProducerT< T, Textractor >::moduleLabel_ [private]

Definition at line 173 of file CaloJetMETcorrInputProducerT.h.

template<typename T , typename Textractor >
std::string CaloJetMETcorrInputProducerT< T, Textractor >::offsetCorrLabel_ [private]

Definition at line 177 of file CaloJetMETcorrInputProducerT.h.

Referenced by CaloJetMETcorrInputProducerT< T, Textractor >::CaloJetMETcorrInputProducerT(), and CaloJetMETcorrInputProducerT< T, Textractor >::produce().

template<typename T , typename Textractor >
bool CaloJetMETcorrInputProducerT< T, Textractor >::skipEM_ [private]

Definition at line 191 of file CaloJetMETcorrInputProducerT.h.

Referenced by CaloJetMETcorrInputProducerT< T, Textractor >::CaloJetMETcorrInputProducerT(), and CaloJetMETcorrInputProducerT< T, Textractor >::produce().

template<typename T , typename Textractor >
double CaloJetMETcorrInputProducerT< T, Textractor >::skipEMfractionThreshold_ [private]

Definition at line 193 of file CaloJetMETcorrInputProducerT.h.

Referenced by CaloJetMETcorrInputProducerT< T, Textractor >::CaloJetMETcorrInputProducerT(), and CaloJetMETcorrInputProducerT< T, Textractor >::produce().

template<typename T , typename Textractor >
edm::InputTag CaloJetMETcorrInputProducerT< T, Textractor >::src_ [private]

Definition at line 175 of file CaloJetMETcorrInputProducerT.h.

Referenced by CaloJetMETcorrInputProducerT< T, Textractor >::CaloJetMETcorrInputProducerT(), and CaloJetMETcorrInputProducerT< T, Textractor >::produce().

template<typename T , typename Textractor >
edm::InputTag CaloJetMETcorrInputProducerT< T, Textractor >::srcMET_ [private]

Definition at line 195 of file CaloJetMETcorrInputProducerT.h.

Referenced by CaloJetMETcorrInputProducerT< T, Textractor >::CaloJetMETcorrInputProducerT(), and CaloJetMETcorrInputProducerT< T, Textractor >::produce().

template<typename T , typename Textractor >
double CaloJetMETcorrInputProducerT< T, Textractor >::type1JetPtThreshold_ [private]

Definition at line 187 of file CaloJetMETcorrInputProducerT.h.

Referenced by CaloJetMETcorrInputProducerT< T, Textractor >::CaloJetMETcorrInputProducerT(), and CaloJetMETcorrInputProducerT< T, Textractor >::produce().

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