/data/git/CMSSW_5_3_11_patch5/src/PhysicsTools/PatUtils/interface/LeptonJetIsolationAngle.h

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//
// $Id: LeptonJetIsolationAngle.h,v 1.4 2009/05/26 08:54:21 fabiocos Exp $
//

#ifndef PhysicsTools_PatUtils_LeptonJetIsolationAngle_h
#define PhysicsTools_PatUtils_LeptonJetIsolationAngle_h

#include "FWCore/Framework/interface/Event.h"
#include "DataFormats/Common/interface/Handle.h"
#include "CLHEP/Vector/LorentzVector.h"

#include "DataFormats/PatCandidates/interface/Electron.h"
#include "DataFormats/PatCandidates/interface/Muon.h"
#include "DataFormats/PatCandidates/interface/Jet.h"
#include "PhysicsTools/PatUtils/interface/TrackerIsolationPt.h"


namespace pat {


  class LeptonJetIsolationAngle {

    public:

      LeptonJetIsolationAngle();
      ~LeptonJetIsolationAngle();

      float calculate(const Electron & anElectron, const edm::Handle<edm::View<reco::Track> > & trackHandle, const edm::Event & iEvent);
      float calculate(const Muon & aMuon, const edm::Handle<edm::View<reco::Track> > & trackHandle, const edm::Event & iEvent);

    private:

      float calculate(const CLHEP::HepLorentzVector & aLepton, const edm::Handle<edm::View<reco::Track> > & trackHandle, const edm::Event & iEvent);
      float spaceAngle(const CLHEP::HepLorentzVector & aLepton, const reco::CaloJet & aJet);

    private:

      TrackerIsolationPt trkIsolator_;

  };


}

#endif