GsfEleDEtaInSeedCut.cc

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#include "PhysicsTools/SelectorUtils/interface/CutApplicatorBase.h"
#include "DataFormats/EgammaCandidates/interface/GsfElectron.h"

class GsfEleDEtaInSeedCut : public CutApplicatorBase {
public:
  GsfEleDEtaInSeedCut(const edm::ParameterSet& c)
      : CutApplicatorBase(c),
        _dEtaInSeedCutValueEB(c.getParameter<double>("dEtaInSeedCutValueEB")),
        _dEtaInSeedCutValueEE(c.getParameter<double>("dEtaInSeedCutValueEE")),
        _barrelCutOff(c.getParameter<double>("barrelCutOff")) {}

  result_type operator()(const reco::GsfElectronPtr&) const final;

  double value(const reco::CandidatePtr& cand) const final;

  CandidateType candidateType() const final { return ELECTRON; }

private:
  const double _dEtaInSeedCutValueEB, _dEtaInSeedCutValueEE, _barrelCutOff;
};

DEFINE_EDM_PLUGIN(CutApplicatorFactory, GsfEleDEtaInSeedCut, "GsfEleDEtaInSeedCut");

//a little temporary 72X fix
float dEtaInSeed(const reco::GsfElectronPtr& ele) {
  return ele->superCluster().isNonnull() && ele->superCluster()->seed().isNonnull()
             ? ele->deltaEtaSuperClusterTrackAtVtx() - ele->superCluster()->eta() + ele->superCluster()->seed()->eta()
             : std::numeric_limits<float>::max();
}

CutApplicatorBase::result_type GsfEleDEtaInSeedCut::operator()(const reco::GsfElectronPtr& cand) const {
  const float dEtaInSeedCutValue =
      (std::abs(cand->superCluster()->eta()) < _barrelCutOff ? _dEtaInSeedCutValueEB : _dEtaInSeedCutValueEE);
  // return std::abs(cand->deltaEtaSeedClusterTrackAtVtx()) < dEtaInSeedCutValue;
  return std::abs(dEtaInSeed(cand)) < dEtaInSeedCutValue;
}

double GsfEleDEtaInSeedCut::value(const reco::CandidatePtr& cand) const {
  reco::GsfElectronPtr ele(cand);
  return std::abs(dEtaInSeed(ele));
}