PFRecoTauDiscriminationByDeltaE Class Reference

Inheritance diagram for PFRecoTauDiscriminationByDeltaE:

List of all members.

Public Member Functions
void	beginEvent (const edm::Event &, const edm::EventSetup &)
double	discriminate (const reco::PFTauRef &)
	PFRecoTauDiscriminationByDeltaE (const ParameterSet &iConfig)
	~PFRecoTauDiscriminationByDeltaE ()
Private Member Functions
double	DeltaE (const PFTauRef &)
Private Attributes
bool	booleanOutput
double	chargedPionMass
double	deltaEmax
double	deltaEmin

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Detailed Description

Definition at line 16 of file PFRecoTauDiscriminationByDeltaE.cc.

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Constructor & Destructor Documentation

PFRecoTauDiscriminationByDeltaE::PFRecoTauDiscriminationByDeltaE

(

const ParameterSet &

iConfig

)

[inline, explicit]

Definition at line 18 of file PFRecoTauDiscriminationByDeltaE.cc.

References edm::ParameterSet::getParameter().

                                                                             :PFTauDiscriminationProducerBase(iConfig){
                deltaEmin               = iConfig.getParameter<double>("deltaEmin");
                deltaEmax               = iConfig.getParameter<double>("deltaEmax");
                chargedPionMass         = 0.139;
                booleanOutput           = iConfig.getParameter<bool>("BooleanOutput");
        }

PFRecoTauDiscriminationByDeltaE::~PFRecoTauDiscriminationByDeltaE

(

)

[inline]

Definition at line 25 of file PFRecoTauDiscriminationByDeltaE.cc.

{}

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Member Function Documentation

void PFRecoTauDiscriminationByDeltaE::beginEvent	(	const edm::Event &	iEvent,
		const edm::EventSetup &	iSetup
	)		[virtual]

Reimplemented from TauDiscriminationProducerBase< TauType, TauDiscriminator >.

Definition at line 39 of file PFRecoTauDiscriminationByDeltaE.cc.

                                                                                             {
}

double PFRecoTauDiscriminationByDeltaE::DeltaE

(

const PFTauRef &

tau

)

[private]

Definition at line 49 of file PFRecoTauDiscriminationByDeltaE.cc.

References i, p4, and edm::RefVector< C, T, F >::size().

                                                                 {
        double tracksE = 0;
        PFCandidateRefVector signalTracks = tau->signalPFChargedHadrCands();
        for(size_t i = 0; i < signalTracks.size(); ++i){
                TLorentzVector p4;
                p4.SetXYZM(signalTracks[i]->px(),
                           signalTracks[i]->py(),
                           signalTracks[i]->pz(),
                           chargedPionMass);
                tracksE += p4.E();
        }

        double hadrTauP = tau->momentum().r() * (1.0 - tau->emFraction());
        if (tau->emFraction() >= 1.0) {
                return -1.0; // electron
        } else {
                return tracksE / hadrTauP - 1.0;
        }
}

double PFRecoTauDiscriminationByDeltaE::discriminate

(

const reco::PFTauRef &

tau

)

Definition at line 42 of file PFRecoTauDiscriminationByDeltaE.cc.

                                                                       {

        double dE = DeltaE(tau);
        if(booleanOutput) return ( dE > deltaEmin && dE < deltaEmax ? 1. : 0. );
        return dE;
}

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Member Data Documentation

bool PFRecoTauDiscriminationByDeltaE::booleanOutput [private]

Definition at line 36 of file PFRecoTauDiscriminationByDeltaE.cc.

double PFRecoTauDiscriminationByDeltaE::chargedPionMass [private]

Definition at line 33 of file PFRecoTauDiscriminationByDeltaE.cc.

double PFRecoTauDiscriminationByDeltaE::deltaEmax [private]

Definition at line 35 of file PFRecoTauDiscriminationByDeltaE.cc.

double PFRecoTauDiscriminationByDeltaE::deltaEmin [private]

Definition at line 35 of file PFRecoTauDiscriminationByDeltaE.cc.