ImpactParameterAlgorithm Class Reference

#include <ImpactParameterAlgorithm.h>

Public Member Functions
	ImpactParameterAlgorithm (const edm::ParameterSet &parameters)
	ImpactParameterAlgorithm ()
void	setPrimaryVertex (reco::Vertex *pv)
void	setTransientTrackBuilder (const TransientTrackBuilder *)
std::pair< float, reco::TauImpactParameterInfo >	tag (const reco::IsolatedTauTagInfoRef &, const reco::Vertex &)
	~ImpactParameterAlgorithm ()

Private Attributes
double	ip_max
double	ip_min
reco::Vertex *	primaryVertex
double	sip_min
const TransientTrackBuilder *	transientTrackBuilder
bool	use3D
bool	use_sign

Detailed Description

Definition at line 19 of file ImpactParameterAlgorithm.h.

Constructor & Destructor Documentation

ImpactParameterAlgorithm() [1/2]

ImpactParameterAlgorithm::ImpactParameterAlgorithm

(

const edm::ParameterSet &

parameters

)

Definition at line 17 of file ImpactParameterAlgorithm.cc.

References ip_max, ip_min, sip_min, use3D, and use_sign.

                                                                                    {
  ip_min = parameters.getParameter<double>("TauImpactParameterMin");
  ip_max = parameters.getParameter<double>("TauImpactParameterMax");
  sip_min = parameters.getParameter<double>("TauImpactParameterSignificanceMin");
  use_sign = parameters.getParameter<bool>("UseTauImpactParameterSign");
  use3D = parameters.getParameter<bool>("UseTau3DImpactParameter");
}

ImpactParameterAlgorithm() [2/2]

ImpactParameterAlgorithm::ImpactParameterAlgorithm

(

)

Definition at line 9 of file ImpactParameterAlgorithm.cc.

References ip_max, ip_min, sip_min, use3D, and use_sign.

                                                   {
  ip_min = -9999;
  ip_max = 9999;
  sip_min = 0;
  use_sign = false;
  use3D = false;
}

~ImpactParameterAlgorithm()

ImpactParameterAlgorithm::~ImpactParameterAlgorithm ( )

inline

Definition at line 28 of file ImpactParameterAlgorithm.h.

{}

Member Function Documentation

setPrimaryVertex()

void ImpactParameterAlgorithm::setPrimaryVertex ( reco::Vertex *  pv )

inline

Definition at line 30 of file ImpactParameterAlgorithm.h.

References primaryVertex, and MetAnalyzer::pv().

{ primaryVertex = pv; }

setTransientTrackBuilder()

void ImpactParameterAlgorithm::setTransientTrackBuilder

(

const TransientTrackBuilder *

builder

)

Definition at line 25 of file ImpactParameterAlgorithm.cc.

References transientTrackBuilder.

Referenced by ImpactParameter::produce().

                                                                                            {
  transientTrackBuilder = builder;
}

tag()

std::pair< float, reco::TauImpactParameterInfo > ImpactParameterAlgorithm::tag	(	const reco::IsolatedTauTagInfoRef &	tauRef,
		const reco::Vertex &	pv
	)

Definition at line 29 of file ImpactParameterAlgorithm.cc.

References SignedImpactParameter3D::apply(), SignedTransverseImpactParameter::apply(), TransientTrackBuilder::build(), PDWG_TauSkim_cff::discriminator, reco::TauImpactParameterInfo::discriminator(), Measurement1D::error(), Exception, edm::Ref< C, T, F >::get(), reco::TauImpactParameterTrackData::ip3D, ip_max, ip_min, metsig::jet, LogDebug, MetAnalyzer::pv(), reco::TauImpactParameterInfo::setIsolatedTauTag(), sip_min, reco::TauImpactParameterInfo::storeTrackData(), tracks, transientTrackBuilder, reco::TauImpactParameterTrackData::transverseIp, use3D, use_sign, and Measurement1D::value().

Referenced by ImpactParameter::produce().

                                                                                                   {
  if (transientTrackBuilder == nullptr) {
    throw cms::Exception("NullTransientTrackBuilder") << "Transient track builder is 0. ";
  }

  reco::TauImpactParameterInfo resultExtended;
  resultExtended.setIsolatedTauTag(tauRef);

  const reco::Jet* jet = tauRef->jet().get();
  GlobalVector direction(jet->px(), jet->py(), jet->pz());

  const reco::TrackRefVector& tracks = tauRef->selectedTracks();

  edm::RefVector<reco::TrackCollection>::const_iterator iTrack;
  for (iTrack = tracks.begin(); iTrack != tracks.end(); iTrack++) {
    const reco::TransientTrack transientTrack = (transientTrackBuilder->build(&(**iTrack)));

    SignedTransverseImpactParameter stip;
    Measurement1D ip = stip.apply(transientTrack, direction, pv).second;

    SignedImpactParameter3D signed_ip3D;
    Measurement1D ip3D = signed_ip3D.apply(transientTrack, direction, pv).second;
    LogDebug("ImpactParameterAlgorithm::tag") << "check pv,ip3d " << pv.z() << " " << ip3D.value();
    if (!use_sign) {
      Measurement1D tmp2D(fabs(ip.value()), ip.error());
      ip = tmp2D;

      Measurement1D tmp3D(fabs(ip3D.value()), ip3D.error());
      ip3D = tmp3D;
    }

    reco::TauImpactParameterTrackData theData;

    theData.transverseIp = ip;
    theData.ip3D = ip3D;
    resultExtended.storeTrackData(*iTrack, theData);
  }

  float discriminator = resultExtended.discriminator(ip_min, ip_max, sip_min, use_sign, use3D);

  return std::make_pair(discriminator, resultExtended);
}

Member Data Documentation

ip_max

double ImpactParameterAlgorithm::ip_max

private

Definition at line 40 of file ImpactParameterAlgorithm.h.

Referenced by ImpactParameterAlgorithm(), and tag().

ip_min

double ImpactParameterAlgorithm::ip_min

private

Definition at line 40 of file ImpactParameterAlgorithm.h.

Referenced by ImpactParameterAlgorithm(), and tag().

primaryVertex

reco::Vertex* ImpactParameterAlgorithm::primaryVertex

private

Definition at line 37 of file ImpactParameterAlgorithm.h.

Referenced by setPrimaryVertex().

sip_min

double ImpactParameterAlgorithm::sip_min

private

Definition at line 40 of file ImpactParameterAlgorithm.h.

Referenced by ImpactParameterAlgorithm(), and tag().

transientTrackBuilder

const TransientTrackBuilder* ImpactParameterAlgorithm::transientTrackBuilder

private

Definition at line 43 of file ImpactParameterAlgorithm.h.

Referenced by setTransientTrackBuilder(), and tag().

use3D

bool ImpactParameterAlgorithm::use3D

private

Definition at line 41 of file ImpactParameterAlgorithm.h.

Referenced by ImpactParameterAlgorithm(), and tag().

use_sign

bool ImpactParameterAlgorithm::use_sign

private

Definition at line 41 of file ImpactParameterAlgorithm.h.

Referenced by ImpactParameterAlgorithm(), and tag().