GsfEleTrkPtIsoRhoCut.cc

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#include "PhysicsTools/SelectorUtils/interface/CutApplicatorWithEventContentBase.h"
#include "DataFormats/EgammaCandidates/interface/GsfElectron.h"
#include "DataFormats/EgammaCandidates/interface/ConversionFwd.h"
#include "DataFormats/EgammaCandidates/interface/Conversion.h"
#include "RecoEgamma/EgammaTools/interface/ConversionTools.h"

#include "RecoEgamma/ElectronIdentification/interface/EBEECutValues.h"

class GsfEleTrkPtIsoRhoCut : public CutApplicatorWithEventContentBase {
public:
  GsfEleTrkPtIsoRhoCut(const edm::ParameterSet& c);
  
  result_type operator()(const reco::GsfElectronPtr&) const override final;
 
  void setConsumes(edm::ConsumesCollector&) override final;
  void getEventContent(const edm::EventBase&) override final;
  
  double value(const reco::CandidatePtr& cand) const override final;

  CandidateType candidateType() const override final { 
    return ELECTRON; 
  }

private:
 
  EBEECutValues slopeTerm_;
  EBEECutValues slopeStart_;
  EBEECutValues constTerm_;
  EBEECutValues rhoEtStart_;
  EBEECutValues rhoEA_;
  
  
  edm::Handle<double> rhoHandle_;
  
};

DEFINE_EDM_PLUGIN(CutApplicatorFactory,
          GsfEleTrkPtIsoRhoCut,
          "GsfEleTrkPtIsoRhoCut");

GsfEleTrkPtIsoRhoCut::GsfEleTrkPtIsoRhoCut(const edm::ParameterSet& params) :
  CutApplicatorWithEventContentBase(params),
  slopeTerm_(params,"slopeTerm"),
  slopeStart_(params,"slopeStart"),
  constTerm_(params,"constTerm"),
  rhoEtStart_(params,"rhoEtStart"),
  rhoEA_(params,"rhoEA")
{
  edm::InputTag rhoTag = params.getParameter<edm::InputTag>("rho");
  contentTags_.emplace("rho",rhoTag);
}

void GsfEleTrkPtIsoRhoCut::setConsumes(edm::ConsumesCollector& cc) {
  auto rho = cc.consumes<double>(contentTags_["rho"]);
  contentTokens_.emplace("rho",rho);
}

void GsfEleTrkPtIsoRhoCut::getEventContent(const edm::EventBase& ev) {  
  ev.getByLabel(contentTags_["rho"],rhoHandle_);
}

CutApplicatorBase::result_type 
GsfEleTrkPtIsoRhoCut::
operator()(const reco::GsfElectronPtr& cand) const{  
  const double rho = (*rhoHandle_);
  const float isolTrkPt = cand->dr03TkSumPt();

  const float et = cand->et();
  const float cutValue = et > slopeStart_(cand)  ? slopeTerm_(cand)*(et-slopeStart_(cand)) + constTerm_(cand) : constTerm_(cand);

  const float rhoCutValue = et >= rhoEtStart_(cand) ? rhoEA_(cand)*rho : 0.;

  return isolTrkPt < cutValue+rhoCutValue;
}

double GsfEleTrkPtIsoRhoCut::
value(const reco::CandidatePtr& cand) const {
  reco::GsfElectronPtr ele(cand);  
  return ele->dr03TkSumPt();
}