Producer for DisplacedVertices. More...

#include <PFDisplacedVertexProducer.h>

Inheritance diagram for PFDisplacedVertexProducer:

Public Member Functions
virtual void	beginJob ()

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

	PFDisplacedVertexProducer (const edm::ParameterSet &)

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

	~PFDisplacedVertexProducer ()

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	inputTagVertexCandidates_

PFDisplacedVertexFinder	pfDisplacedVertexFinder_
	Displaced Vertices 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 DisplacedVertexFinder. This Finder fit vertex candidates out of the DisplacedVertexCandidates which contain all tracks 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 PFDisplacedVertexProducer.h.

Constructor & Destructor Documentation

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

explicit

Definition at line 27 of file PFDisplacedVertexProducer.cc.

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

                                                                                    {
   
   // --- Setup input collection names --- //
 
   inputTagVertexCandidates_ 
     = iConfig.getParameter<InputTag>("vertexCandidatesLabel");
 
   inputTagMainVertex_ 
     = iConfig.getParameter<InputTag>("mainVertexLabel");
 
   inputTagBeamSpot_ 
     = iConfig.getParameter<InputTag>("offlineBeamSpotLabel");
 
   verbose_ = 
     iConfig.getUntrackedParameter<bool>("verbose");
 
   bool debug = 
     iConfig.getUntrackedParameter<bool>("debug");
 
   // ------ Algo Parameters ------ //
 
   // Maximal transverse distance between two minimal
   // approach points to be used together
   double transvSize 
      = iConfig.getParameter< double >("transvSize");
    
   // Maximal longitudinal distance between two minimal
   // approach points to be used together
   double longSize 
      = iConfig.getParameter< double >("longSize");
 
   // Minimal radius below which we do not reconstruct interactions
   // Typically the position of the first Pixel layer
   double primaryVertexCut
     = iConfig.getParameter< double >("primaryVertexCut");
 
   // Radius at which no secondary tracks are availables
   // in the barrel.For the moment we exclude the TOB barrel
   // since 5-th track step starts the latest at first TOB
   // layer.
   double tobCut 
      = iConfig.getParameter< double >("tobCut");
 
   // Radius at which no secondary tracks are availables
   // in the endcaps.For the moment we exclude the TEC wheel.
   double tecCut 
      = iConfig.getParameter< double >("tecCut");
 
   // The minimal accepted weight for the tracks calculated in the 
   // adaptive vertex fitter to be associated to the displaced vertex 
   double minAdaptWeight
     = iConfig.getParameter< double >("minAdaptWeight");
 
   bool switchOff2TrackVertex
     = iConfig.getUntrackedParameter< bool >("switchOff2TrackVertex");
 
   edm::ParameterSet ps_trk = iConfig.getParameter<edm::ParameterSet>("tracksSelectorParameters");
   edm::ParameterSet ps_vtx = iConfig.getParameter<edm::ParameterSet>("vertexIdentifierParameters");
   edm::ParameterSet ps_avf = iConfig.getParameter<edm::ParameterSet>("avfParameters");
 
   produces<reco::PFDisplacedVertexCollection>();
 
   // Vertex Finder parameters  -----------------------------------
   pfDisplacedVertexFinder_.setDebug(debug);
   pfDisplacedVertexFinder_.setParameters(transvSize, longSize,  
                      primaryVertexCut, tobCut, 
                      tecCut, minAdaptWeight, switchOff2TrackVertex);
   pfDisplacedVertexFinder_.setAVFParameters(ps_avf);
   pfDisplacedVertexFinder_.setTracksSelector(ps_trk);
   pfDisplacedVertexFinder_.setVertexIdentifier(ps_vtx);
   
 }

PFDisplacedVertexProducer::~PFDisplacedVertexProducer ( )

Definition at line 102 of file PFDisplacedVertexProducer.cc.

102 { }

Member Function Documentation

void PFDisplacedVertexProducer::beginJob ( void )

virtual

Reimplemented from edm::EDProducer.

Definition at line 107 of file PFDisplacedVertexProducer.cc.

107 { }

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

virtual

Reimplemented from edm::EDProducer.

Definition at line 110 of file PFDisplacedVertexProducer.cc.

111 { }

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

virtual

Implements edm::EDProducer.

Definition at line 115 of file PFDisplacedVertexProducer.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("PFDisplacedVertexProducer")<<"START event: "<<iEvent.id().event()
                  <<" in run "<<iEvent.id().run()<<endl;
   
   // Prepare useful information for the Finder
 
   ESHandle<MagneticField> magField;
   iSetup.get<IdealMagneticFieldRecord>().get(magField);
   const MagneticField* theMagField = magField.product();
 
   ESHandle<GlobalTrackingGeometry> globTkGeomHandle;
   iSetup.get<GlobalTrackingGeometryRecord>().get(globTkGeomHandle);
 
   ESHandle<TrackerGeometry> tkerGeomHandle;
   iSetup.get<TrackerDigiGeometryRecord>().get(tkerGeomHandle);
 
   Handle<reco::PFDisplacedVertexCandidateCollection> vertexCandidates;
   iEvent.getByLabel(inputTagVertexCandidates_, vertexCandidates);
 
   Handle< reco::VertexCollection > mainVertexHandle;
   iEvent.getByLabel(inputTagMainVertex_, mainVertexHandle);
 
   Handle< reco::BeamSpot > beamSpotHandle;
   iEvent.getByLabel(inputTagBeamSpot_, beamSpotHandle);
 
   // Fill useful event information for the Finder
   pfDisplacedVertexFinder_.setEdmParameters(theMagField, globTkGeomHandle, tkerGeomHandle); 
   pfDisplacedVertexFinder_.setPrimaryVertex(mainVertexHandle, beamSpotHandle);
   pfDisplacedVertexFinder_.setInput(vertexCandidates);
 
   // Run the finder
   pfDisplacedVertexFinder_.findDisplacedVertices();
   
 
   if(verbose_) {
     ostringstream  str;
     //str<<pfDisplacedVertexFinder_<<endl;
     cout << pfDisplacedVertexFinder_<<endl;
     LogInfo("PFDisplacedVertexProducer") << str.str()<<endl;
   }    
 
 
   auto_ptr< reco::PFDisplacedVertexCollection > 
     pOutputDisplacedVertexCollection( 
       pfDisplacedVertexFinder_.transferDisplacedVertices() ); 
 
 
   
   iEvent.put(pOutputDisplacedVertexCollection);
  
   LogDebug("PFDisplacedVertexProducer")<<"STOP event: "<<iEvent.id().event()
                  <<" in run "<<iEvent.id().run()<<endl;
 
 }