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	hasAbilityToProduceInBeginProcessBlocks () const final

bool	hasAbilityToProduceInBeginRuns () const final

bool	hasAbilityToProduceInEndLumis () const final

bool	hasAbilityToProduceInEndProcessBlocks () 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;
 }