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antoniov |
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#include "ForwardAnalysis/Utilities/interface/TrackAssociatedWithPVSelector.h"
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#include "DataFormats/Common/interface/Handle.h"
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#include "FWCore/Framework/interface/Event.h"
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#include "FWCore/ParameterSet/interface/ParameterSet.h"
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#include "DataFormats/TrackReco/interface/Track.h"
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#include "DataFormats/VertexReco/interface/Vertex.h"
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using namespace reco;
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using forwardAnalysis::TrackAssociatedWithPVSelector;
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TrackAssociatedWithPVSelector::TrackAssociatedWithPVSelector(const edm::ParameterSet& pset):
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vertexTag_(pset.getParameter<edm::InputTag>("vertexTag")),
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deltaZVtxMin_(pset.getParameter<double>("minDistanceFromVertex")),
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deltaZVtxMax_(pset.getParameter<double>("maxDistanceFromVertex")){}
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TrackAssociatedWithPVSelector::~TrackAssociatedWithPVSelector() {}
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bool TrackAssociatedWithPVSelector::operator()(const reco::Track& track, const edm::Event& event) const {
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edm::Handle<edm::View<Vertex> > vertexCollectionH;
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event.getByLabel(vertexTag_,vertexCollectionH);
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const edm::View<Vertex>& vtxColl = *(vertexCollectionH.product());
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// Access primary vertex
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const Vertex& primaryVertex = vtxColl.front();
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bool goodPrimaryVertex = ((primaryVertex.isValid())&&(!primaryVertex.isFake()));
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if(!goodPrimaryVertex) return false;
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const math::XYZPoint& trackVtxPos = track.vertex();
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const math::XYZPoint& primVtxPos = primaryVertex.position();
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math::XYZVector dist = trackVtxPos - primVtxPos;
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bool accept = (fabs(dist.z()) >= deltaZVtxMin_)&&(fabs(dist.z()) <= deltaZVtxMax_);
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return accept;
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}
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