L1TkElectronTrackMatchAlgo Namespace Reference

Functions
GlobalPoint	calorimeterPosition (double phi, double eta, double e)
double	deltaEta (const GlobalPoint &epos, const edm::Ptr< L1TTTrackType > &pTrk)
double	deltaPhi (const GlobalPoint &epos, const edm::Ptr< L1TTTrackType > &pTrk)
double	deltaR (const GlobalPoint &epos, const edm::Ptr< L1TTTrackType > &pTrk)
void	doMatch (BXVector< l1t::EGamma >::const_iterator egIter, const edm::Ptr< L1TTTrackType > &pTrk, double &dph, double &dr, double &deta)
void	doMatch (const GlobalPoint &epos, const edm::Ptr< L1TTTrackType > &pTrk, double &dph, double &dr, double &deta)
void	doMatch (l1t::EGammaBxCollection::const_iterator egIter, const edm::Ptr< L1TTTrackType > &pTrk, double &dph, double &dr, double &deta)

Function Documentation

calorimeterPosition()

GlobalPoint L1TkElectronTrackMatchAlgo::calorimeterPosition	(	double	phi,
		double	eta,
		double	e
	)

Definition at line 74 of file L1TkElectronTrackMatchAlgo.cc.

                                                                    {
    double x = 0.;
    double y = 0.;
    double z = 0.;
    double depth = 0.89 * (7.7 + log(e));
    double theta = 2 * atan(exp(-1 * eta));
    double r = 0;
    if (fabs(eta) > max_eb_eta) {
      double ecalZ = max_eb_z * fabs(eta) / eta;
 
      r = ecalZ / cos(2 * atan(exp(-1 * eta))) + depth;
      x = r * cos(phi) * sin(theta);
      y = r * sin(phi) * sin(theta);
      z = r * cos(theta);
    } else {
      double zface = sqrt(cos(theta) * cos(theta) / (1 - cos(theta) * cos(theta)) * eb_rperp * eb_rperp);
      r = sqrt(eb_rperp * eb_rperp + zface * zface) + depth;
      x = r * cos(phi) * sin(theta);
      y = r * sin(phi) * sin(theta);
      z = r * cos(theta);
    }
    GlobalPoint pos(x, y, z);
    return pos;
  }

References funct::cos(), LEDCalibrationChannels::depth, MillePedeFileConverter_cfg::e, eb_rperp, PVValHelper::eta, JetChargeProducer_cfi::exp, dqm-mbProfile::log, max_eb_eta, max_eb_z, alignCSCRings::r, funct::sin(), mathSSE::sqrt(), and theta().

Referenced by doMatch().

deltaEta()

double L1TkElectronTrackMatchAlgo::deltaEta	(	const GlobalPoint &	epos,
		const edm::Ptr< L1TTTrackType > &	pTrk
	)

Definition at line 59 of file L1TkElectronTrackMatchAlgo.cc.

                                                                              {
    double corr_eta = 999.0;
    double er = epos.perp();
    double ez = epos.z();
    double z0 = pTrk->POCA().z();
    double theta = 0.0;
    if (ez >= 0)
      theta = atan(er / fabs(ez - z0));
    else
      theta = M_PI - atan(er / fabs(ez - z0));
    corr_eta = -1.0 * log(tan(theta / 2.0));
    double deleta = (corr_eta - pTrk->momentum().eta());
    return deleta;
  }

References dqm-mbProfile::log, M_PI, PV3DBase< T, PVType, FrameType >::perp(), funct::tan(), theta(), PV3DBase< T, PVType, FrameType >::z(), and HLTMuonOfflineAnalyzer_cfi::z0.

Referenced by deltaR(), and doMatch().

deltaPhi()

double L1TkElectronTrackMatchAlgo::deltaPhi	(	const GlobalPoint &	epos,
		const edm::Ptr< L1TTTrackType > &	pTrk
	)

Definition at line 41 of file L1TkElectronTrackMatchAlgo.cc.

                                                                              {
    double er = epos.perp();
    double curv = pTrk->rInv();
 
    double dphi_curv = (asin(er * curv / (2.0)));
    double trk_phi_ecal = reco::deltaPhi(pTrk->momentum().phi(), dphi_curv);
 
    double dphi = reco::deltaPhi(trk_phi_ecal, epos.phi());
    return dphi;
  }

References reco::deltaPhi(), PV3DBase< T, PVType, FrameType >::perp(), and PV3DBase< T, PVType, FrameType >::phi().

Referenced by deltaR(), and doMatch().

deltaR()

double L1TkElectronTrackMatchAlgo::deltaR	(	const GlobalPoint &	epos,
		const edm::Ptr< L1TTTrackType > &	pTrk
	)

Definition at line 52 of file L1TkElectronTrackMatchAlgo.cc.

                                                                            {
    //double dPhi = fabs(reco::deltaPhi(epos.phi(), pTrk->momentum().phi()));
    double dPhi = L1TkElectronTrackMatchAlgo::deltaPhi(epos, pTrk);
    double dEta = deltaEta(epos, pTrk);
    return sqrt(dPhi * dPhi + dEta * dEta);
  }

References deltaEta(), deltaPhi(), HLT_2018_cff::dEta, HLT_2018_cff::dPhi, and mathSSE::sqrt().

Referenced by doMatch().

doMatch() [1/3]

void L1TkElectronTrackMatchAlgo::doMatch	(	BXVector< l1t::EGamma >::const_iterator	egIter,
		const edm::Ptr< L1TTTrackType > &	pTrk,
		double &	dph,
		double &	dr,
		double &	deta
	)

Referenced by L1TkElectronTrackProducer::produce().

doMatch() [2/3]

void L1TkElectronTrackMatchAlgo::doMatch	(	const GlobalPoint &	epos,
		const edm::Ptr< L1TTTrackType > &	pTrk,
		double &	dph,
		double &	dr,
		double &	deta
	)

Definition at line 35 of file L1TkElectronTrackMatchAlgo.cc.

                                                                                                                  {
    dph = L1TkElectronTrackMatchAlgo::deltaPhi(epos, pTrk);
    dr = L1TkElectronTrackMatchAlgo::deltaR(epos, pTrk);
    deta = L1TkElectronTrackMatchAlgo::deltaEta(epos, pTrk);
  }

References deltaEta(), deltaPhi(), deltaR(), and flavorHistoryFilter_cfi::dr.

doMatch() [3/3]

void L1TkElectronTrackMatchAlgo::doMatch	(	l1t::EGammaBxCollection::const_iterator	egIter,
		const edm::Ptr< L1TTTrackType > &	pTrk,
		double &	dph,
		double &	dr,
		double &	deta
	)

Definition at line 24 of file L1TkElectronTrackMatchAlgo.cc.

                             {
    GlobalPoint egPos = L1TkElectronTrackMatchAlgo::calorimeterPosition(egIter->phi(), egIter->eta(), egIter->energy());
    dph = L1TkElectronTrackMatchAlgo::deltaPhi(egPos, pTrk);
    dr = L1TkElectronTrackMatchAlgo::deltaR(egPos, pTrk);
    deta = L1TkElectronTrackMatchAlgo::deltaEta(egPos, pTrk);
  }

References calorimeterPosition(), deltaEta(), deltaPhi(), deltaR(), and flavorHistoryFilter_cfi::dr.