MHT.h

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#ifndef DataFormats_PatCandidates_MHT_h
#define DataFormats_PatCandidates_MHT_h

#include "DataFormats/Candidate/interface/CompositeRefBaseCandidate.h"
#include "DataFormats/Candidate/interface/Candidate.h"


namespace pat {
  
  class MHT : public reco::CompositeRefBaseCandidate {
  public:
    MHT () {}
    MHT (const Candidate::LorentzVector& p4, double ht, double signif) :
      CompositeRefBaseCandidate(0,p4), ht_(ht), significance_(signif) {}
    virtual ~MHT () {}
    
    double mht() const {return pt();}
    // ????double phi() const {return phi();}
    double ht()  const {return ht_;}
    double significance() const {return significance_;}
    double error()  const{return 0.5*significance()*mht()*mht();}
    
    double getNumberOfJets() const;
    void   setNumberOfJets(const double & numberOfJets);
    
    double getNumberOfElectrons() const;
    void   setNumberOfElectrons(const double & numberOfElectrons);

    double getNumberOfMuons() const;
    void   setNumberOfMuons(const double & numberOfMuons);

   private:
    
    double ht_;
    double significance_;
    double number_of_jets_;
    double number_of_electrons_;
    double number_of_muons_;
  };
  
  typedef std::vector<pat::MHT> MHTCollection;
}

#endif