VZeroProducer Class Reference

#include <VZeroProducer.h>

Inheritance diagram for VZeroProducer:

Public Member Functions
virtual void	produce (edm::Event &ev, const edm::EventSetup &es)
	VZeroProducer (const edm::ParameterSet &pset)
	~VZeroProducer ()
Public Member Functions inherited from edm::EDProducer
	EDProducer ()
ModuleDescription const &	moduleDescription () const
virtual	~EDProducer ()
Public Member Functions inherited from edm::ProducerBase
	ProducerBase ()
void	registerProducts (ProducerBase *, ProductRegistry *, ModuleDescription const &)
std::function< void(BranchDescription const &)>	registrationCallback () const
	used by the fwk to register list of products More...
virtual	~ProducerBase ()
Public Member Functions inherited from edm::EDConsumerBase
std::vector< ConsumesInfo >	consumesInfo () const
	EDConsumerBase ()
ProductHolderIndexAndSkipBit	indexFrom (EDGetToken, BranchType, TypeID const &) const
void	itemsMayGet (BranchType, std::vector< ProductHolderIndexAndSkipBit > &) const
void	itemsToGet (BranchType, std::vector< ProductHolderIndexAndSkipBit > &) const
std::vector < ProductHolderIndexAndSkipBit > const &	itemsToGetFromEvent () const
void	labelsForToken (EDGetToken iToken, Labels &oLabels) const
void	modulesDependentUpon (const std::string &iProcessName, std::vector< const char * > &oModuleLabels) const
void	modulesWhoseProductsAreConsumed (std::vector< ModuleDescription const * > &modules, ProductRegistry const &preg, std::map< std::string, ModuleDescription const * > const &labelsToDesc, std::string const &processName) const
bool	registeredToConsume (ProductHolderIndex, bool, BranchType) const
bool	registeredToConsumeMany (TypeID const &, BranchType) const
void	updateLookup (BranchType iBranchType, ProductHolderIndexHelper const &)
virtual	~EDConsumerBase ()

Private Attributes
float	minImpactNegativeDaughter
float	minImpactPositiveDaughter
edm::ParameterSet	pset_

Additional Inherited Members
Public Types inherited from edm::EDProducer
typedef EDProducer	ModuleType
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::ProducerBase
void	callWhenNewProductsRegistered (std::function< void(BranchDescription const &)> const &func)
Protected Member Functions inherited from edm::EDConsumerBase
template<typename ProductType , BranchType B = InEvent>
EDGetTokenT< ProductType >	consumes (edm::InputTag const &tag)
EDGetToken	consumes (const TypeToGet &id, edm::InputTag const &tag)
template<BranchType B>
EDGetToken	consumes (TypeToGet const &id, edm::InputTag const &tag)
ConsumesCollector	consumesCollector ()
	Use a ConsumesCollector to gather consumes information from helper functions. More...
template<typename ProductType , BranchType B = InEvent>
void	consumesMany ()
void	consumesMany (const TypeToGet &id)
template<BranchType B>
void	consumesMany (const TypeToGet &id)
template<typename ProductType , BranchType B = InEvent>
EDGetTokenT< ProductType >	mayConsume (edm::InputTag const &tag)
EDGetToken	mayConsume (const TypeToGet &id, edm::InputTag const &tag)
template<BranchType B>
EDGetToken	mayConsume (const TypeToGet &id, edm::InputTag const &tag)

Detailed Description

Definition at line 9 of file VZeroProducer.h.

Constructor & Destructor Documentation

VZeroProducer::VZeroProducer ( const edm::ParameterSet &  pset )

explicit

Definition at line 20 of file VZeroProducer.cc.

References edm::ParameterSet::getParameter(), minImpactNegativeDaughter, and minImpactPositiveDaughter.

  : pset_(pset)
{
  LogInfo("VZeroProducer") << " constructor";
  produces<reco::VZeroCollection>();

  // Get track level cuts
  minImpactPositiveDaughter =
    pset.getParameter<double>("minImpactPositiveDaughter");
  minImpactNegativeDaughter =
    pset.getParameter<double>("minImpactNegativeDaughter");
}

VZeroProducer::~VZeroProducer

(

)

Definition at line 34 of file VZeroProducer.cc.

{
  LogInfo("VZeroProducer") << " destructor";
}

Member Function Documentation

void VZeroProducer::produce ( edm::Event &  ev, const edm::EventSetup &  es  )

virtual

Implements edm::EDProducer.

Definition at line 40 of file VZeroProducer.cc.

References reco::Vertex::add(), edm::RefVector< C, T, F >::begin(), VZeroFinder::checkTrackPair(), reco::VZeroData::crossingPoint, data, edm::RefVector< C, T, F >::end(), edm::Event::getByLabel(), edm::ParameterSet::getParameter(), i, LogTrace, minImpactNegativeDaughter, minImpactPositiveDaughter, edm::Handle< T >::product(), pset_, edm::RefVector< C, T, F >::push_back(), edm::Event::put(), query::result, edm::RefVector< C, T, F >::size(), HLT_25ns14e33_v3_cff::trackCollection, testEve_cfg::tracks, GoodVertex_cfg::vertexCollection, and HLT_25ns14e33_v1_cff::vertices.

{
  // Get tracks
  Handle<reco::TrackCollection> trackCollection;
  ev.getByLabel(pset_.getParameter<InputTag>("trackCollection"),
                                              trackCollection);
  const reco::TrackCollection tracks = *(trackCollection.product());

  // Get primary vertices
  Handle<reco::VertexCollection> vertexCollection;
  ev.getByLabel(pset_.getParameter<InputTag>("vertexCollection"),
                                              vertexCollection);
  const reco::VertexCollection* vertices = vertexCollection.product();

  // Find vzeros
  VZeroFinder theFinder(es,pset_);

  // Selection based on track impact parameter
  reco::TrackRefVector positives;
  reco::TrackRefVector negatives;

  for(unsigned int i=0; i<tracks.size(); i++)
  {
    if(tracks[i].charge() > 0 &&
       fabs(tracks[i].d0()) > minImpactPositiveDaughter)
      positives.push_back(reco::TrackRef(trackCollection, i));

    if(tracks[i].charge() < 0 &&
       fabs(tracks[i].d0()) > minImpactNegativeDaughter)
      negatives.push_back(reco::TrackRef(trackCollection, i));
  }

  LogTrace("MinBiasTracking") << "[VZeroProducer] using tracks :"
       << " +" << positives.size()
       << " -" << negatives.size();

  auto_ptr<reco::VZeroCollection> result(new reco::VZeroCollection);

  // Check all combination of positives and negatives
  if(positives.size() > 0 && negatives.size() > 0)
    for(reco::track_iterator ipos = positives.begin();
                             ipos!= positives.end(); ipos++)
    for(reco::track_iterator ineg = negatives.begin();
                             ineg!= negatives.end(); ineg++)
    {
      reco::VZeroData data;

      if(theFinder.checkTrackPair(**ipos,**ineg, vertices, data) == true)
      {
        // Create vertex (creation point)
        reco::Vertex vertex(reco::Vertex::Point(data.crossingPoint.x(),
                                                data.crossingPoint.y(),
                                                data.crossingPoint.z()),
                            reco::Vertex::Error(), 0.,0.,0);

        // Add references to daughters
        vertex.add(reco::TrackBaseRef(*ipos));
        vertex.add(reco::TrackBaseRef(*ineg));

        // Store vzero
        result->push_back(reco::VZero(vertex,data));
      }
    }

  LogTrace("MinBiasTracking")
    << "[VZeroProducer] found candidates : " << result->size();

  // Put result back to the event
  ev.put(result);
}

Member Data Documentation

float VZeroProducer::minImpactNegativeDaughter

private

Definition at line 22 of file VZeroProducer.h.

Referenced by produce(), and VZeroProducer().

float VZeroProducer::minImpactPositiveDaughter

private

Definition at line 22 of file VZeroProducer.h.

Referenced by produce(), and VZeroProducer().

edm::ParameterSet VZeroProducer::pset_

private

Definition at line 20 of file VZeroProducer.h.

Referenced by produce().