JetPlusTrackProducer.cc

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// -*- C++ -*-
//
// Package:    JetPlusTracks
// Class:      JetPlusTrackProducer
//
//
// Original Author:  Olga Kodolova,40 R-A12,+41227671273,
//         Created:  Fri Feb 19 10:14:02 CET 2010
//
//

// system include files
#include <memory>

// user include files

#include "FWCore/Framework/interface/MakerMacros.h"

#include "FWCore/ParameterSet/interface/ParameterSet.h"

#include "RecoJets/JetPlusTracks/plugins/JetPlusTrackProducer.h"
#include "DataFormats/JetReco/interface/CaloJetCollection.h"
#include "DataFormats/JetReco/interface/CaloJet.h"
#include "DataFormats/JetReco/interface/JPTJetCollection.h"
#include "DataFormats/JetReco/interface/JPTJet.h"
#include "DataFormats/TrackReco/interface/TrackFwd.h"
#include "DataFormats/TrackReco/interface/Track.h"
#include "DataFormats/JetReco/interface/Jet.h"
#include "DataFormats/VertexReco/interface/VertexFwd.h"
#include "DataFormats/VertexReco/interface/Vertex.h"
#include "DataFormats/Math/interface/deltaPhi.h"
#include "DataFormats/Math/interface/deltaR.h"

#include <string>

using namespace std;
using namespace jpt;

//
// constants, enums and typedefs
//

//
// static data member definitions
//

//
// constructors and destructor
//
JetPlusTrackProducer::JetPlusTrackProducer(const edm::ParameterSet& iConfig) {
  //register your products
  src = iConfig.getParameter<edm::InputTag>("src");
  alias = iConfig.getUntrackedParameter<string>("alias");
  srcPVs_ = iConfig.getParameter<edm::InputTag>("srcPVs");
  vectorial_ = iConfig.getParameter<bool>("VectorialCorrection");
  useZSP = iConfig.getParameter<bool>("UseZSP");
  ptCUT = iConfig.getParameter<double>("ptCUT");
  mJPTalgo = new JetPlusTrackCorrector(iConfig, consumesCollector());
  if (useZSP)
    mZSPalgo = new ZSPJPTJetCorrector(iConfig);

  produces<reco::JPTJetCollection>().setBranchAlias(alias);

  input_jets_token_ = consumes<edm::View<reco::CaloJet> >(src);
  input_vertex_token_ = consumes<reco::VertexCollection>(srcPVs_);
}

JetPlusTrackProducer::~JetPlusTrackProducer() {
  // do anything here that needs to be done at desctruction time
  // (e.g. close files, deallocate resources etc.)
}

//
// member functions
//

// ------------ method called to produce the data  ------------
void JetPlusTrackProducer::produce(edm::Event& iEvent, const edm::EventSetup& iSetup) {
  using namespace edm;

  //  std::cout<<" RecoJets::JetPlusTrackProducer::produce "<<std::endl;

  // get stuff from Event
  edm::Handle<edm::View<reco::CaloJet> > jets_h;
  iEvent.getByToken(input_jets_token_, jets_h);

  //  auto pOut = std::make_unique<reco::CaloJetCollection>();
  auto pOut = std::make_unique<reco::JPTJetCollection>();

  for (unsigned i = 0; i < jets_h->size(); ++i) {
    const reco::CaloJet* oldjet = &(*(jets_h->refAt(i)));

    reco::CaloJet corrected = *oldjet;

    // ZSP corrections

    double factorZSP = 1.;
    if (useZSP)
      factorZSP = mZSPalgo->correction(corrected, iEvent, iSetup);

    corrected.scaleEnergy(factorZSP);

    // JPT corrections

    double scaleJPT = 1.;

    math::XYZTLorentzVector p4;

    jpt::MatchedTracks pions;
    jpt::MatchedTracks muons;
    jpt::MatchedTracks elecs;
    bool ok = false;

    if (!vectorial_) {
      scaleJPT = mJPTalgo->correction(corrected, *oldjet, iEvent, iSetup, pions, muons, elecs, ok);
      p4 = math::XYZTLorentzVector(corrected.px() * scaleJPT,
                                   corrected.py() * scaleJPT,
                                   corrected.pz() * scaleJPT,
                                   corrected.energy() * scaleJPT);
    } else {
      scaleJPT = mJPTalgo->correction(corrected, *oldjet, iEvent, iSetup, p4, pions, muons, elecs, ok);
    }

    reco::JPTJet::Specific specific;

    if (ok) {
      specific.pionsInVertexInCalo = pions.inVertexInCalo_;
      specific.pionsInVertexOutCalo = pions.inVertexOutOfCalo_;
      specific.pionsOutVertexInCalo = pions.outOfVertexInCalo_;
      specific.muonsInVertexInCalo = muons.inVertexInCalo_;
      specific.muonsInVertexOutCalo = muons.inVertexOutOfCalo_;
      specific.muonsOutVertexInCalo = muons.outOfVertexInCalo_;
      specific.elecsInVertexInCalo = elecs.inVertexInCalo_;
      specific.elecsInVertexOutCalo = elecs.inVertexOutOfCalo_;
      specific.elecsOutVertexInCalo = elecs.outOfVertexInCalo_;
    }

    // Fill JPT Specific
    edm::RefToBase<reco::Jet> myjet = (edm::RefToBase<reco::Jet>)jets_h->refAt(i);
    specific.theCaloJetRef = myjet;
    specific.mZSPCor = factorZSP;
    specific.mResponseOfChargedWithEff = (float)mJPTalgo->getResponseOfChargedWithEff();
    specific.mResponseOfChargedWithoutEff = (float)mJPTalgo->getResponseOfChargedWithoutEff();
    specific.mSumPtOfChargedWithEff = (float)mJPTalgo->getSumPtWithEff();
    specific.mSumPtOfChargedWithoutEff = (float)mJPTalgo->getSumPtWithoutEff();
    specific.mSumEnergyOfChargedWithEff = (float)mJPTalgo->getSumEnergyWithEff();
    specific.mSumEnergyOfChargedWithoutEff = (float)mJPTalgo->getSumEnergyWithoutEff();
    specific.mChargedHadronEnergy = (float)mJPTalgo->getSumEnergyWithoutEff();

    // Fill Charged Jet shape parameters
    double deR2Tr = 0.;
    double deEta2Tr = 0.;
    double dePhi2Tr = 0.;
    double Zch = 0.;
    double Pout2 = 0.;
    double Pout = 0.;
    double denominator_tracks = 0.;
    int ntracks = 0;

    for (reco::TrackRefVector::const_iterator it = pions.inVertexInCalo_.begin(); it != pions.inVertexInCalo_.end();
         it++) {
      double deR = deltaR((*it)->eta(), (*it)->phi(), p4.eta(), p4.phi());
      double deEta = (*it)->eta() - p4.eta();
      double dePhi = deltaPhi((*it)->phi(), p4.phi());
      if ((**it).ptError() / (**it).pt() < 0.1) {
        deR2Tr = deR2Tr + deR * deR * (*it)->pt();
        deEta2Tr = deEta2Tr + deEta * deEta * (*it)->pt();
        dePhi2Tr = dePhi2Tr + dePhi * dePhi * (*it)->pt();
        denominator_tracks = denominator_tracks + (*it)->pt();
        Zch = Zch + (*it)->pt();

        Pout2 = Pout2 + (**it).p() * (**it).p() - (Zch * p4.P()) * (Zch * p4.P());
        ntracks++;
      }
    }

    for (reco::TrackRefVector::const_iterator it = muons.inVertexInCalo_.begin(); it != muons.inVertexInCalo_.end();
         it++) {
      double deR = deltaR((*it)->eta(), (*it)->phi(), p4.eta(), p4.phi());
      double deEta = (*it)->eta() - p4.eta();
      double dePhi = deltaPhi((*it)->phi(), p4.phi());
      if ((**it).ptError() / (**it).pt() < 0.1) {
        deR2Tr = deR2Tr + deR * deR * (*it)->pt();
        deEta2Tr = deEta2Tr + deEta * deEta * (*it)->pt();
        dePhi2Tr = dePhi2Tr + dePhi * dePhi * (*it)->pt();
        denominator_tracks = denominator_tracks + (*it)->pt();
        Zch = Zch + (*it)->pt();

        Pout2 = Pout2 + (**it).p() * (**it).p() - (Zch * p4.P()) * (Zch * p4.P());
        ntracks++;
      }
    }
    for (reco::TrackRefVector::const_iterator it = elecs.inVertexInCalo_.begin(); it != elecs.inVertexInCalo_.end();
         it++) {
      double deR = deltaR((*it)->eta(), (*it)->phi(), p4.eta(), p4.phi());
      double deEta = (*it)->eta() - p4.eta();
      double dePhi = deltaPhi((*it)->phi(), p4.phi());
      if ((**it).ptError() / (**it).pt() < 0.1) {
        deR2Tr = deR2Tr + deR * deR * (*it)->pt();
        deEta2Tr = deEta2Tr + deEta * deEta * (*it)->pt();
        dePhi2Tr = dePhi2Tr + dePhi * dePhi * (*it)->pt();
        denominator_tracks = denominator_tracks + (*it)->pt();
        Zch = Zch + (*it)->pt();

        Pout2 = Pout2 + (**it).p() * (**it).p() - (Zch * p4.P()) * (Zch * p4.P());
        ntracks++;
      }
    }
    for (reco::TrackRefVector::const_iterator it = pions.inVertexOutOfCalo_.begin();
         it != pions.inVertexOutOfCalo_.end();
         it++) {
      Zch = Zch + (*it)->pt();
    }
    for (reco::TrackRefVector::const_iterator it = muons.inVertexOutOfCalo_.begin();
         it != muons.inVertexOutOfCalo_.end();
         it++) {
      Zch = Zch + (*it)->pt();
    }
    for (reco::TrackRefVector::const_iterator it = elecs.inVertexOutOfCalo_.begin();
         it != elecs.inVertexOutOfCalo_.end();
         it++) {
      Zch = Zch + (*it)->pt();
    }

    if (mJPTalgo->getSumPtForBeta() > 0.)
      Zch = Zch / mJPTalgo->getSumPtForBeta();

    //     std::cout<<" Zch "<< Zch<<" "<<mJPTalgo->getSumPtForBeta()<<std::endl;

    if (ntracks > 0) {
      Pout = sqrt(fabs(Pout2)) / ntracks;
    }
    if (denominator_tracks != 0) {
      deR2Tr = deR2Tr / denominator_tracks;
      deEta2Tr = deEta2Tr / denominator_tracks;
      dePhi2Tr = dePhi2Tr / denominator_tracks;
    }

    specific.R2momtr = deR2Tr;
    specific.Eta2momtr = deEta2Tr;
    specific.Phi2momtr = dePhi2Tr;
    specific.Pout = Pout;
    specific.Zch = Zch;

    //       std::cout<<" Moments for charged component "<<deR2_Tr<<" "<<deEta2_Tr<<" "<<dePhi2_Tr<<std::endl;

    // Create JPT jet

    reco::Particle::Point vertex_ = reco::Jet::Point(0, 0, 0);

    // If we add primary vertex
    edm::Handle<reco::VertexCollection> pvCollection;
    iEvent.getByToken(input_vertex_token_, pvCollection);
    if (pvCollection.isValid() && !pvCollection->empty())
      vertex_ = pvCollection->begin()->position();

    reco::JPTJet fJet(p4, vertex_, specific, corrected.getJetConstituents());

    //   fJet.printJet();

    // Output module
    if (fJet.pt() > ptCUT)
      pOut->push_back(fJet);
  }

  iEvent.put(std::move(pOut));
}

//define this as a plug-in
//DEFINE_FWK_MODULE(JetPlusTrackProducer);