Producer for DisplacedVertices. More...

#include <PFDisplacedVertexCandidateProducer.h>

Inheritance diagram for PFDisplacedVertexCandidateProducer:

Public Member Functions
	PFDisplacedVertexCandidateProducer (const edm::ParameterSet &)

void	produce (edm::Event &, const edm::EventSetup &) override

	~PFDisplacedVertexCandidateProducer () override

Public Member Functions inherited from edm::stream::EDProducer<>
	EDProducer ()=default

bool	hasAbilityToProduceInBeginLumis () const final

bool	hasAbilityToProduceInBeginRuns () const final

bool	hasAbilityToProduceInEndLumis () const final

bool	hasAbilityToProduceInEndRuns () const final

Private Attributes
edm::EDGetTokenT< reco::BeamSpot >	inputTagBeamSpot_

edm::EDGetTokenT< reco::VertexCollection >	inputTagMainVertex_
	Input tag for main vertex to cut of dxy of secondary tracks. More...

edm::EDGetTokenT< reco::TrackCollection >	inputTagTracks_
	Reco Tracks used to spot the nuclear interactions. More...

PFDisplacedVertexCandidateFinder	pfDisplacedVertexCandidateFinder_
	Displaced Vertex Candidates finder. More...

bool	verbose_
	verbose ? More...

Additional Inherited Members
Public Types inherited from edm::stream::EDProducer<>
typedef CacheContexts< T... >	CacheTypes

typedef CacheTypes::GlobalCache	GlobalCache

typedef AbilityChecker< T... >	HasAbility

typedef CacheTypes::LuminosityBlockCache	LuminosityBlockCache

typedef LuminosityBlockContextT< LuminosityBlockCache, RunCache, GlobalCache >	LuminosityBlockContext

typedef CacheTypes::LuminosityBlockSummaryCache	LuminosityBlockSummaryCache

typedef CacheTypes::RunCache	RunCache

typedef RunContextT< RunCache, GlobalCache >	RunContext

typedef CacheTypes::RunSummaryCache	RunSummaryCache

Detailed Description

Producer for DisplacedVertices.

This producer makes use of DisplacedVertexCandidateFinder. This Finder loop recursively over reco::Tracks to find those which are linked together by the criterion which is by default the minimal approach distance.

Author: Maxime Gouzevitch

Date: November 2009

Definition at line 27 of file PFDisplacedVertexCandidateProducer.h.

Constructor & Destructor Documentation

◆ PFDisplacedVertexCandidateProducer()

PFDisplacedVertexCandidateProducer::PFDisplacedVertexCandidateProducer ( const edm::ParameterSet & iConfig )

explicit

Definition at line 19 of file PFDisplacedVertexCandidateProducer.cc.

                                                                                                      {
   // --- Setup input collection names --- //
   inputTagTracks_ = consumes<reco::TrackCollection>(iConfig.getParameter<InputTag>("trackCollection"));
  
   inputTagMainVertex_ = consumes<reco::VertexCollection>(iConfig.getParameter<InputTag>("mainVertexLabel"));
  
   inputTagBeamSpot_ = consumes<reco::BeamSpot>(iConfig.getParameter<InputTag>("offlineBeamSpotLabel"));
  
   verbose_ = iConfig.getUntrackedParameter<bool>("verbose");
  
   bool debug = iConfig.getUntrackedParameter<bool>("debug");
  
   // ------ Algo Parameters ------ //
  
   // Distance of minimal approach below which
   // two tracks are considered as linked together
   double dcaCut = iConfig.getParameter<double>("dcaCut");
  
   // Do not reconstruct vertices wich are
   // too close to the beam pipe
   double primaryVertexCut = iConfig.getParameter<double>("primaryVertexCut");
  
   //maximum distance between the DCA Point and the inner hit of the track
   double dcaPInnerHitCut = iConfig.getParameter<double>("dcaPInnerHitCut");
  
   edm::ParameterSet ps_trk = iConfig.getParameter<edm::ParameterSet>("tracksSelectorParameters");
  
   // Collection to be produced
   produces<reco::PFDisplacedVertexCandidateCollection>();
  
   // Vertex Finder parameters  -----------------------------------
   pfDisplacedVertexCandidateFinder_.setDebug(debug);
   pfDisplacedVertexCandidateFinder_.setParameters(dcaCut, primaryVertexCut, dcaPInnerHitCut, ps_trk);
 }

References particleFlowDisplacedVertexCandidate_cfi::dcaCut, particleFlowDisplacedVertexCandidate_cfi::dcaPInnerHitCut, debug, edm::ParameterSet::getParameter(), edm::ParameterSet::getUntrackedParameter(), and particleFlowDisplacedVertex_cfi::primaryVertexCut.

◆ ~PFDisplacedVertexCandidateProducer()

PFDisplacedVertexCandidateProducer::~PFDisplacedVertexCandidateProducer ( )

override

Definition at line 54 of file PFDisplacedVertexCandidateProducer.cc.

54 {}

Member Function Documentation

◆ produce()

void PFDisplacedVertexCandidateProducer::produce	(	edm::Event &	iEvent,
		const edm::EventSetup &	iSetup
	)

override

Definition at line 56 of file PFDisplacedVertexCandidateProducer.cc.

                                                                                         {
   LogDebug("PFDisplacedVertexCandidateProducer")
       << "START event: " << iEvent.id().event() << " in run " << iEvent.id().run() << endl;
  
   // Prepare and fill useful event information for the Finder
   edm::ESHandle<MagneticField> magField;
   iSetup.get<IdealMagneticFieldRecord>().get(magField);
   const MagneticField* theMagField = magField.product();
  
   Handle<reco::TrackCollection> trackCollection;
   iEvent.getByToken(inputTagTracks_, trackCollection);
  
   Handle<reco::VertexCollection> mainVertexHandle;
   iEvent.getByToken(inputTagMainVertex_, mainVertexHandle);
  
   Handle<reco::BeamSpot> beamSpotHandle;
   iEvent.getByToken(inputTagBeamSpot_, beamSpotHandle);
  
   pfDisplacedVertexCandidateFinder_.setPrimaryVertex(mainVertexHandle, beamSpotHandle);
   pfDisplacedVertexCandidateFinder_.setInput(trackCollection, theMagField);
  
   // Run the finder
   pfDisplacedVertexCandidateFinder_.findDisplacedVertexCandidates();
  
   if (verbose_) {
     ostringstream str;
     str << pfDisplacedVertexCandidateFinder_ << endl;
     cout << pfDisplacedVertexCandidateFinder_ << endl;
     LogInfo("PFDisplacedVertexCandidateProducer") << str.str() << endl;
   }
  
   std::unique_ptr<reco::PFDisplacedVertexCandidateCollection> pOutputDisplacedVertexCandidateCollection(
       pfDisplacedVertexCandidateFinder_.transferVertexCandidates());
  
   iEvent.put(std::move(pOutputDisplacedVertexCandidateCollection));
  
   LogDebug("PFDisplacedVertexCandidateProducer")
       << "STOP event: " << iEvent.id().event() << " in run " << iEvent.id().run() << endl;
 }