PFRecoTauDiscriminationByFlightPathSignificance Class Reference

Inheritance diagram for PFRecoTauDiscriminationByFlightPathSignificance:

Public Member Functions
void	beginEvent (const edm::Event &, const edm::EventSetup &)
double	discriminate (const reco::PFTauRef &)
	PFRecoTauDiscriminationByFlightPathSignificance (const ParameterSet &iConfig)
	~PFRecoTauDiscriminationByFlightPathSignificance ()
Public Member Functions inherited from TauDiscriminationProducerBase< TauType, TauDiscriminator >
virtual double	discriminate (const TauRef &tau)=0
virtual void	endEvent (edm::Event &evt)
void	produce (edm::Event &, const edm::EventSetup &)
	TauDiscriminationProducerBase (const edm::ParameterSet &iConfig)
	TauDiscriminationProducerBase ()
virtual	~TauDiscriminationProducerBase ()
Public Member Functions inherited from edm::EDProducer
	EDProducer ()
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
	EDConsumerBase ()
ProductHolderIndex	indexFrom (EDGetToken, BranchType, TypeID const &) const
void	itemsMayGet (BranchType, std::vector< ProductHolderIndex > &) const
void	itemsToGet (BranchType, std::vector< ProductHolderIndex > &) const
void	labelsForToken (EDGetToken iToken, Labels &oLabels) const
void	updateLookup (BranchType iBranchType, ProductHolderIndexHelper const &)
virtual	~EDConsumerBase ()

Private Member Functions
double	threeProngFlightPathSig (const PFTauRef &)
double	vertexSignificance (reco::Vertex &, reco::Vertex &, GlobalVector &)

Private Attributes
bool	booleanOutput
double	flightPathSig
const TransientTrackBuilder *	transientTrackBuilder
reco::tau::RecoTauVertexAssociator	vertexAssociator_
bool	withPVError

Additional Inherited Members
Public Types inherited from TauDiscriminationProducerBase< TauType, TauDiscriminator >
typedef std::vector< TauType >	TauCollection
typedef edm::Ref< TauCollection >	TauRef
typedef edm::RefProd < TauCollection >	TauRefProd
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
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)
Protected Attributes inherited from TauDiscriminationProducerBase< TauType, TauDiscriminator >
std::string	moduleLabel_
double	prediscriminantFailValue_
edm::InputTag	TauProducer_

Detailed Description

Definition at line 25 of file PFRecoTauDiscriminationByFlightPathSignificance.cc.

Constructor & Destructor Documentation

PFRecoTauDiscriminationByFlightPathSignificance::PFRecoTauDiscriminationByFlightPathSignificance ( const ParameterSet &  iConfig )

inlineexplicit

Definition at line 28 of file PFRecoTauDiscriminationByFlightPathSignificance.cc.

References edm::ParameterSet::getParameter().

      :PFTauDiscriminationProducerBase(iConfig),
      vertexAssociator_(iConfig.getParameter<ParameterSet>("qualityCuts")) {
      flightPathSig     = iConfig.getParameter<double>("flightPathSig");
      withPVError       = iConfig.getParameter<bool>("UsePVerror");
      booleanOutput         = iConfig.getParameter<bool>("BooleanOutput");
    }

PFRecoTauDiscriminationByFlightPathSignificance::~PFRecoTauDiscriminationByFlightPathSignificance ( )

inline

Definition at line 37 of file PFRecoTauDiscriminationByFlightPathSignificance.cc.

{}

Member Function Documentation

void PFRecoTauDiscriminationByFlightPathSignificance::beginEvent ( const edm::Event &  iEvent, const edm::EventSetup &  iSetup  )

virtual

Reimplemented from TauDiscriminationProducerBase< TauType, TauDiscriminator >.

Definition at line 55 of file PFRecoTauDiscriminationByFlightPathSignificance.cc.

References edm::EventSetup::get(), and edm::ESHandle< class >::product().

                                                  {

  vertexAssociator_.setEvent(iEvent);

  // Transient Tracks
  edm::ESHandle<TransientTrackBuilder> builder;
  iSetup.get<TransientTrackRecord>().get("TransientTrackBuilder",builder);
  transientTrackBuilder = builder.product();

}

double PFRecoTauDiscriminationByFlightPathSignificance::discriminate

(

const reco::PFTauRef &

tau

)

Definition at line 67 of file PFRecoTauDiscriminationByFlightPathSignificance.cc.

                                                                                       {

  if(booleanOutput) return ( threeProngFlightPathSig(tau) > flightPathSig ? 1. : 0. );
  return threeProngFlightPathSig(tau);
}

double PFRecoTauDiscriminationByFlightPathSignificance::threeProngFlightPathSig ( const PFTauRef &  tau )

private

Definition at line 73 of file PFRecoTauDiscriminationByFlightPathSignificance.cc.

References edm::RefVector< C, T, F >::begin(), edm::RefVector< C, T, F >::end(), edm::Ref< C, T, F >::isNonnull(), edm::Ref< C, T, F >::isNull(), TransientVertex::isValid(), reco::PFCandidate::trackRef(), and KalmanVertexFitter::vertex().

                        {
  double flightPathSignificance = 0;

  reco::VertexRef primaryVertex = vertexAssociator_.associatedVertex(*tau);

  if (primaryVertex.isNull()) {
    edm::LogError("FlightPathSignficance") << "Could not get vertex associated"
      << " to tau, returning -999!" << std::endl;
    return -999;
  }

  //Secondary vertex
  const PFCandidateRefVector pfSignalCandidates = tau->signalPFChargedHadrCands();
  vector<TransientTrack> transientTracks;
  RefVector<PFCandidateCollection>::const_iterator iTrack;
  for(iTrack = pfSignalCandidates.begin(); iTrack!= pfSignalCandidates.end(); iTrack++){
    const PFCandidate& pfCand = *(iTrack->get());
    if(pfCand.trackRef().isNonnull()){
      const TransientTrack transientTrack = transientTrackBuilder->build(pfCand.trackRef());
      transientTracks.push_back(transientTrack);
    }
  }
  if(transientTracks.size() > 1){
    KalmanVertexFitter kvf(true);
    TransientVertex tv = kvf.vertex(transientTracks);

    if(tv.isValid()){
      GlobalVector tauDir(tau->px(),
          tau->py(),
          tau->pz());
      Vertex secVer = tv;
      // We have to un-const the PV for some reason
      reco::Vertex primaryVertexNonConst = *primaryVertex;
      flightPathSignificance = vertexSignificance(primaryVertexNonConst,secVer,tauDir);
    }
  }
  return flightPathSignificance;
}

double PFRecoTauDiscriminationByFlightPathSignificance::vertexSignificance ( reco::Vertex &  pv, reco::Vertex &  sv, GlobalVector &  direction  )

private

Definition at line 113 of file PFRecoTauDiscriminationByFlightPathSignificance.cc.

References reco::SecondaryVertex::computeDist3d(), and Measurement1D::significance().

                                                       {
  return SecondaryVertex::computeDist3d(pv,sv,direction,withPVError).significance();
}

Member Data Documentation

bool PFRecoTauDiscriminationByFlightPathSignificance::booleanOutput

private

Definition at line 48 of file PFRecoTauDiscriminationByFlightPathSignificance.cc.

double PFRecoTauDiscriminationByFlightPathSignificance::flightPathSig

private

Definition at line 49 of file PFRecoTauDiscriminationByFlightPathSignificance.cc.

const TransientTrackBuilder* PFRecoTauDiscriminationByFlightPathSignificance::transientTrackBuilder

private

Definition at line 52 of file PFRecoTauDiscriminationByFlightPathSignificance.cc.

reco::tau::RecoTauVertexAssociator PFRecoTauDiscriminationByFlightPathSignificance::vertexAssociator_

private

Definition at line 46 of file PFRecoTauDiscriminationByFlightPathSignificance.cc.

bool PFRecoTauDiscriminationByFlightPathSignificance::withPVError

private

Definition at line 50 of file PFRecoTauDiscriminationByFlightPathSignificance.cc.