PFDisplacedVertexCandidateProducer Class Reference

Producer for DisplacedVertices. More...

#include <PFDisplacedVertexCandidateProducer.h>

Inheritance diagram for PFDisplacedVertexCandidateProducer:

List of all members.

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 ()
Private Attributes
edm::InputTag	inputTagTracks_
	Reco Tracks used to spot the nuclear interactions.
PFDisplacedVertexCandidateFinder	pfDisplacedVertexCandidateFinder_
	Displaced Vertex Candidates finder.
bool	verbose_
	verbose ?

---

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.

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Constructor & Destructor Documentation

PFDisplacedVertexCandidateProducer::PFDisplacedVertexCandidateProducer

(

const edm::ParameterSet &

iConfig

)

[explicit]

Definition at line 22 of file PFDisplacedVertexCandidateProducer.cc.

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

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

  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 63 of file PFDisplacedVertexCandidateProducer.cc.

{ }

---

Member Function Documentation

void PFDisplacedVertexCandidateProducer::beginJob

(

void

)

[virtual]

Reimplemented from edm::EDProducer.

Definition at line 68 of file PFDisplacedVertexCandidateProducer.cc.

{ }

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

Reimplemented from edm::EDProducer.

Definition at line 71 of file PFDisplacedVertexCandidateProducer.cc.

                                                    { }

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

Implements edm::EDProducer.

Definition at line 76 of file PFDisplacedVertexCandidateProducer.cc.

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

}

---

Member Data Documentation

edm::InputTag PFDisplacedVertexCandidateProducer::inputTagTracks_ [private]

Reco Tracks used to spot the nuclear interactions.

Definition at line 41 of file PFDisplacedVertexCandidateProducer.h.

PFDisplacedVertexCandidateFinder PFDisplacedVertexCandidateProducer::pfDisplacedVertexCandidateFinder_ [private]

Displaced Vertex Candidates finder.

Definition at line 47 of file PFDisplacedVertexCandidateProducer.h.

bool PFDisplacedVertexCandidateProducer::verbose_ [private]

verbose ?

Definition at line 44 of file PFDisplacedVertexCandidateProducer.h.