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	hasAbilityToProduceInLumis () const final

bool	hasAbilityToProduceInRuns () 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 ( const edm::ParameterSet & iConfig )

explicit

Definition at line 20 of file PFDisplacedVertexCandidateProducer.cc.

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

                                                                                                      {
   
   // --- 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);
      
 }

PFDisplacedVertexCandidateProducer::~PFDisplacedVertexCandidateProducer ( )

override

Definition at line 64 of file PFDisplacedVertexCandidateProducer.cc.

64 { }

Member Function Documentation

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

override

Definition at line 68 of file PFDisplacedVertexCandidateProducer.cc.

References gather_cfg::cout, edm::EventID::event(), edm::EventSetup::get(), edm::Event::getByToken(), edm::EventBase::id(), LogDebug, eostools::move(), edm::ESHandle< T >::product(), edm::Event::put(), edm::EventID::run(), harvestTrackValidationPlots::str, and findElectronsInSiStrips_cfi::trackCollection.

                                        {
   
   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;
 
 }