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Jet.h

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// ================================================
// Jet class description
// ================================================
//
// THIS TEXT TO BE REPLACED BY ATLAS STANDARD FORMAT
//
// Namespace Atlfast::
//
// class: Jet
//
// Authors: P.Clarke, H.Phillips, E.Richter-Was, P.Sherwood, R.Steward
//
// Description: 
//
//  Class to represent Jets constructed from Clusters
//
//..................................................


#ifndef ATLFAST_JET_H
#define ATLFAST_JET_H


// Kinematic classes.
#include "CLHEP/Vector/LorentzVector.h"
#include "AtlfastEvent/IKinematic.h"

// Gaudi includes
#include "GaudiKernel/ContainedObject.h"
#include "GaudiKernel/ObjectVector.h"
#include "GaudiKernel/SmartRefVector.h"  

// Atlfast includes
#include "AtlfastEvent/Cluster.h"

//Class ID for Jet class
static const CLID CLID_ATLFAST_Jet=2304 ;


namespace Atlfast {

  //........................................
  class Jet : 
    public IKinematic, 
    public ContainedObject, 
    public AssociationManager{

    private:
    
    HepLorentzVector m_momentum ;
    int m_flavor;
    bool m_tagged;
    /*#  Cluster lnkCluster; */
    public:
    
    // Constructors
    
    Jet() : ContainedObject(), AssociationManager() {}
    Jet( const Cluster& cluster);      
    Jet( const HepLorentzVector& vec, Cluster& cluster );
    void setMomentum(const HepLorentzVector& vec);
    
    // Other Athena mandatory methods
    static const CLID& classID() { return CLID_ATLFAST_Jet; }
    virtual const CLID& clID() const  {  return CLID_ATLFAST_Jet; }
    
    // To implement IKinematic
    virtual HepLorentzVector momentum() const; 
    virtual double  eta() const;
    virtual double  phi() const;
    virtual double  pT()  const;
    virtual double  eT()  const;
    virtual double  mT()  const;
    virtual double  px()  const;
    virtual double  py()  const;
    virtual double  pz()  const;
    
    double  e()   const;
    
    //methods to set and interogate flavor tag  
    void setBTag();
    void setCTag();
    void setTauTag(int tauTag);
    void setUntagged();
    
    bool isBTag()   const;
    bool isCTag()   const;
    bool isTauTag() const;
    bool isTagged() const;
    int pdg_id()    const;

  };
} // end of namespace 


#endif

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