MuonIdTruthInfo.h

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#ifndef MuonIdentification_MuonIdTruthInfo_h
#define MuonIdentification_MuonIdTruthInfo_h 1

// add MC hits to a list of matched segments. The only
// way to differentiat hits is the error on the local
// hit position. It's -9999 for a MC hit
// Since it's debugging mode - code is slow

#include "FWCore/Framework/interface/EventSetup.h"
#include "FWCore/Framework/interface/Event.h"
#include "DataFormats/MuonReco/interface/Muon.h"
#include "DataFormats/MuonReco/interface/MuonSegmentMatch.h"
#include "SimDataFormats/TrackingHit/interface/PSimHit.h"
#include "DataFormats/DetId/interface/DetId.h"
#include "DataFormats/TrackReco/interface/Track.h"
#include "SimDataFormats/Track/interface/SimTrack.h"
#include "Geometry/CommonDetUnit/interface/GlobalTrackingGeometry.h"
#include "FWCore/Framework/interface/ESHandle.h"

class MuonIdTruthInfo
{
 public:
   static void truthMatchMuon( const edm::Event& iEvent,
                   const edm::EventSetup& iSetup,
                   reco::Muon& aMuon);
 private:
   static void checkSimHitForBestMatch(reco::MuonSegmentMatch& segmentMatch,
                       double& distance,
                       const PSimHit& hit, 
                       const DetId& chamberId,
                       const edm::ESHandle<GlobalTrackingGeometry>& geometry);
   
   static double matchChi2(    const reco::Track& recoTrk,
                   const SimTrack& simTrk);
};
#endif