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auterman |
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#include <algorithm>
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#include <vector>
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#include "FWCore/Framework/interface/EDProducer.h"
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#include "FWCore/ParameterSet/interface/ParameterSetfwd.h"
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#include "FWCore/ParameterSet/interface/ParameterSet.h"
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#include "PhysicsTools/Utilities/interface/Math.h"
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#include "DataFormats/TrackReco/interface/Track.h"
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#include "FWCore/Framework/interface/EventSetup.h"
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#include "FWCore/Framework/interface/Event.h"
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#include "FWCore/Framework/interface/ESHandle.h"
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#include "DataFormats/Common/interface/Handle.h"
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#include <TObjArray.h>
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template <typename T1, typename C2>
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class TrkCalIsolationAlgo {
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public:
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typedef double value_type;
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TrkCalIsolationAlgo( const edm::ParameterSet & );
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~TrkCalIsolationAlgo();
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double operator()(const T1 &, const C2 &, const edm::EventSetup &) const;
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private:
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double dRMin_, dRMax_, dzMax_;
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};
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template <typename T1, typename C2>
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TrkCalIsolationAlgo<T1,C2>::TrkCalIsolationAlgo( const edm::ParameterSet & cfg ) :
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dRMin_( cfg.template getParameter<double>( "dRMin" ) ),
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dRMax_( cfg.template getParameter<double>( "dRMax" ) )
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{
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}
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template <typename T1, typename C2>
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TrkCalIsolationAlgo<T1,C2>::~TrkCalIsolationAlgo() {
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}
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///This source (track) already has defined outer eta and phi.
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///This is the track's end point in the tracker, this should be close
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///the tracks entry into the calorimeter.
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///A specialized template operator () for tracks in the CalIsolationAlgo class is not
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///feasable, since the () operator cannot be overloaded.
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template <typename T1, typename C2> double TrkCalIsolationAlgo<T1,C2>::
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operator()(const T1 & cand, const C2 & elements, const edm::EventSetup &iSetup) const {
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double etSum = 0;
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for( typename C2::const_iterator elem = elements.begin();
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elem != elements.end(); ++elem ) {
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double dR = deltaR( elem->eta(), elem->phi(),
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cand.outerEta(), cand.outerPhi() );
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if ( dR < dRMax_ && dR > dRMin_ ) {
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etSum += elem->et();
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}
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}
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return etSum;
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}
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