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ImpactParameterAlgorithm Class Reference

#include <RecoTauTag/ImpactParameter/interface/ImpactParameterAlgorithm.h>

List of all members.

Public Member Functions
	ImpactParameterAlgorithm ()
	ImpactParameterAlgorithm (const ParameterSet &parameters)
void	setPrimaryVertex (Vertex *pv)
void	setTransientTrackBuilder (const TransientTrackBuilder *)
pair< float, TauImpactParameterInfo >	tag (const IsolatedTauTagInfoRef &, const Vertex &)
	~ImpactParameterAlgorithm ()
Private Attributes
double	ip_max
double	ip_min
Vertex *	primaryVertex
double	sip_min
const TransientTrackBuilder *	transientTrackBuilder
bool	use3D
bool	use_sign

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Detailed Description

Definition at line 23 of file ImpactParameterAlgorithm.h.

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Constructor & Destructor Documentation

ImpactParameterAlgorithm::ImpactParameterAlgorithm

(

const ParameterSet &

parameters

)

Definition at line 16 of file ImpactParameterAlgorithm.cc.

References edm::ParameterSet::getParameter(), 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::ImpactParameterAlgorithm

(

)

Definition at line 8 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

(

)

[inline]

Definition at line 34 of file ImpactParameterAlgorithm.h.

{}

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Member Function Documentation

void ImpactParameterAlgorithm::setPrimaryVertex

(

Vertex *

pv

)

[inline]

Definition at line 36 of file ImpactParameterAlgorithm.h.

References primaryVertex.

{primaryVertex = pv;}

void ImpactParameterAlgorithm::setTransientTrackBuilder

(

const TransientTrackBuilder *

builder

)

Definition at line 25 of file ImpactParameterAlgorithm.cc.

References transientTrackBuilder.

Referenced by ImpactParameter::produce().

                                                                                             { 
        transientTrackBuilder = builder; 
}

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

Definition at line 30 of file ImpactParameterAlgorithm.cc.

References SignedImpactParameter3D::apply(), SignedTransverseImpactParameter::apply(), edm::RefVector< C, T, F >::begin(), TransientTrackBuilder::build(), GenMuonPlsPt100GeV_cfg::cout, direction, reco::TauImpactParameterInfo::discriminator(), edm::RefVector< C, T, F >::end(), lat::endl(), Measurement1D::error(), reco::TauImpactParameterTrackData::ip3D, ip_max, ip_min, metsig::jet, reco::Particle::px(), reco::Particle::py(), reco::Particle::pz(), 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 == 0){
             cout << "Transient track builder is 0. abort!" << endl;
             abort(); //FIXME: trow an exception here
        }

        TauImpactParameterInfo resultExtended;
        resultExtended.setIsolatedTauTag(tauRef);

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

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

        RefVector<TrackCollection>::const_iterator iTrack;
        for(iTrack = tracks.begin(); iTrack!= tracks.end(); iTrack++){

          const 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;
          //cout << "check pv,ip3d,track z " << pv.z() << " " << ip3D.value() << " " << transientTrack->dz() << endl;
          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 );
}

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Member Data Documentation

double ImpactParameterAlgorithm::ip_max [private]

Definition at line 47 of file ImpactParameterAlgorithm.h.

Referenced by ImpactParameterAlgorithm(), and tag().

double ImpactParameterAlgorithm::ip_min [private]

Definition at line 47 of file ImpactParameterAlgorithm.h.

Referenced by ImpactParameterAlgorithm(), and tag().

Vertex* ImpactParameterAlgorithm::primaryVertex [private]

Definition at line 44 of file ImpactParameterAlgorithm.h.

Referenced by setPrimaryVertex().

double ImpactParameterAlgorithm::sip_min [private]

Definition at line 47 of file ImpactParameterAlgorithm.h.

Referenced by ImpactParameterAlgorithm(), and tag().

const TransientTrackBuilder* ImpactParameterAlgorithm::transientTrackBuilder [private]

Definition at line 53 of file ImpactParameterAlgorithm.h.

Referenced by setTransientTrackBuilder(), and tag().

bool ImpactParameterAlgorithm::use3D [private]

Definition at line 50 of file ImpactParameterAlgorithm.h.

Referenced by ImpactParameterAlgorithm(), and tag().

bool ImpactParameterAlgorithm::use_sign [private]

Definition at line 50 of file ImpactParameterAlgorithm.h.

Referenced by ImpactParameterAlgorithm(), and tag().

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The documentation for this class was generated from the following files:

• RecoTauTag/ImpactParameter/interface/ImpactParameterAlgorithm.h
• RecoTauTag/ImpactParameter/src/ImpactParameterAlgorithm.cc

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