Producer for DisplacedVertices. More...

#include <PFDisplacedVertexCandidateProducer.h>

Inheritance diagram for PFDisplacedVertexCandidateProducer:

Public Member Functions
virtual void	beginJob ()

virtual void	beginRun (edm::Run &r, const edm::EventSetup &c)

	PFDisplacedVertexCandidateProducer (const edm::ParameterSet &)

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

	~PFDisplacedVertexCandidateProducer ()

Public Member Functions inherited from edm::EDProducer
	EDProducer ()

virtual	~EDProducer ()

Public Member Functions inherited from edm::ProducerBase
	ProducerBase ()

void	registerProducts (ProducerBase , ProductRegistry , ModuleDescription const &)

boost::function< void(const BranchDescription &)>	registrationCallback () const
	used by the fwk to register list of products More...

virtual	~ProducerBase ()

Private Attributes
edm::InputTag	inputTagBeamSpot_

edm::InputTag	inputTagMainVertex_
	Input tag for main vertex to cut of dxy of secondary tracks. More...

edm::InputTag	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::EDProducer
typedef EDProducer	ModuleType

typedef WorkerT< EDProducer >	WorkerType

Public Types inherited from edm::ProducerBase
typedef ProductRegistryHelper::TypeLabelList	TypeLabelList

Static Public Member Functions inherited from edm::EDProducer
static const std::string &	baseType ()

static void	fillDescriptions (ConfigurationDescriptions &descriptions)

static void	prevalidate (ConfigurationDescriptions &descriptions)

Protected Member Functions inherited from edm::EDProducer
CurrentProcessingContext const *	currentContext () const

Protected Member Functions inherited from edm::ProducerBase
template<class TProducer , class TMethod >
void	callWhenNewProductsRegistered (TProducer *iProd, TMethod iMethod)

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 25 of file PFDisplacedVertexCandidateProducer.h.

Constructor & Destructor Documentation

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

explicit

Definition at line 22 of file PFDisplacedVertexCandidateProducer.cc.

References debug, edm::ParameterSet::getParameter(), and edm::ParameterSet::getUntrackedParameter().

                                                                                                      {
   
   // --- Setup input collection names --- //
   inputTagTracks_ 
     = iConfig.getParameter<InputTag>("trackCollection");
 
   inputTagMainVertex_ 
     = iConfig.getParameter<InputTag>("mainVertexLabel");
 
   inputTagBeamSpot_ 
     = 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 ( )

Definition at line 69 of file PFDisplacedVertexCandidateProducer.cc.

69 { }

Member Function Documentation

void PFDisplacedVertexCandidateProducer::beginJob ( void )

virtual

Reimplemented from edm::EDProducer.

Definition at line 74 of file PFDisplacedVertexCandidateProducer.cc.

74 { }

void PFDisplacedVertexCandidateProducer::beginRun	(	edm::Run &	r,
		const edm::EventSetup &	c
	)

virtual

Reimplemented from edm::EDProducer.

Definition at line 77 of file PFDisplacedVertexCandidateProducer.cc.

78 { }

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

virtual

Implements edm::EDProducer.

Definition at line 82 of file PFDisplacedVertexCandidateProducer.cc.

References gather_cfg::cout, edm::EventID::event(), edm::EventSetup::get(), edm::Event::getByLabel(), edm::EventBase::id(), LogDebug, edm::ESHandle< class >::product(), edm::Event::put(), and edm::EventID::run().

                                        {
   
   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.getByLabel(inputTagTracks_, trackCollection);
     
   Handle< reco::VertexCollection > mainVertexHandle;
   iEvent.getByLabel(inputTagMainVertex_, mainVertexHandle);
 
   Handle< reco::BeamSpot > beamSpotHandle;
   iEvent.getByLabel(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;
   }    
 
 
   auto_ptr< reco::PFDisplacedVertexCandidateCollection > 
     pOutputDisplacedVertexCandidateCollection(
       pfDisplacedVertexCandidateFinder_.transferVertexCandidates() ); 
   
   
   iEvent.put(pOutputDisplacedVertexCandidateCollection);
  
   LogDebug("PFDisplacedVertexCandidateProducer")<<"STOP event: "<<iEvent.id().event()
                  <<" in run "<<iEvent.id().run()<<endl;
 
 }