AlphaTVarProducer.h

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#ifndef AlphaTVarProducer_h
#define AlphaTVarProducer_h

#include "FWCore/Framework/interface/EDProducer.h"
#include "FWCore/Framework/interface/Event.h"
#include "FWCore/Framework/interface/Frameworkfwd.h"
#include "FWCore/ParameterSet/interface/ParameterSet.h"
#include "FWCore/Utilities/interface/InputTag.h"

#include "DataFormats/JetReco/interface/CaloJetCollection.h"
#include "DataFormats/METReco/interface/CaloMETFwd.h"
#include "TLorentzVector.h"

#include <vector>

class AlphaTVarProducer : public edm::EDProducer {
public:
  explicit AlphaTVarProducer(const edm::ParameterSet &);
  ~AlphaTVarProducer() override;
  void produce(edm::Event &, const edm::EventSetup &) override;

private:
  double CalcAlphaT(const std::vector<TLorentzVector> &);
  static double CalcHT(const std::vector<TLorentzVector> &);
  static double CalcMHT(const std::vector<TLorentzVector> &);
  static double deltaHt(const std::vector<double> &);
  static double alphaT(const double, const double, const double);

  edm::InputTag inputJetTag_;  // input tag identifying product

  // define Token(-s)
  edm::EDGetTokenT<reco::CaloJetCollection> inputJetTagToken_;
};

#endif  // AlphaTVarProducer_h