AddFourMomenta Class Reference

#include <AddFourMomenta.h>

Public Member Functions
	AddFourMomenta ()
	default constructor More...
	AddFourMomenta (const edm::ParameterSet &)
	constructor More...
void	set (reco::Candidate &c) const
	set up a candidate More...

Detailed Description

set up a composite reco::Candidate adding its daughters four-momenta and electric charge

Author

Luca Lista, INFN

Version

Revision:

1.9

Id:

AddFourMomenta.h,v 1.9 2007/01/09 09:14:42 llista Exp

Definition at line 18 of file AddFourMomenta.h.

Constructor & Destructor Documentation

AddFourMomenta::AddFourMomenta ( )

inline

default constructor

Definition at line 20 of file AddFourMomenta.h.

{}

AddFourMomenta::AddFourMomenta ( const edm::ParameterSet &  )

inlineexplicit

constructor

Definition at line 22 of file AddFourMomenta.h.

{}

Member Function Documentation

void AddFourMomenta::set

(

reco::Candidate &

c

)

const

set up a candidate

Definition at line 6 of file AddFourMomenta.cc.

References c, RecoTauCleanerPlugins::charge, reco::Candidate::charge(), ztail::d, mps_fire::i, dqmiodumpmetadata::n, reco::Candidate::numberOfDaughters(), reco::Candidate::p4(), reco::Candidate::setCharge(), and reco::Candidate::setP4().

Referenced by reco::tau::RecoTauPiZeroStripPlugin2::addCandsToStrip(), reco::tau::RecoTauPiZeroStripPlugin3::addCandsToStrip(), BPHDecayMomentum::computeMomentum(), V0Fitter::fitAll(), TtFullHadHypothesis::hypo(), TtFullLepHypothesis::hypo(), TtSemiLepHypothesis::hypo(), reco::tau::xclean::CrossCleanPiZeros< PtrIter >::operator()(), reco::tau::RecoTauPiZeroCombinatoricPlugin::operator()(), reco::tau::RecoTauPiZeroStripPlugin::operator()(), reco::tau::RecoTauPiZeroStripPlugin2::operator()(), reco::tau::RecoTauPiZeroStripPlugin3::operator()(), RecoTauPiZeroProducer::produce(), PatJPsiProducer::produce(), TtSemiEvtSolution::setupHyp(), reco::WMuNuCandidate::WMuNuCandidate(), and reco::WMuNuCandidatePtr::WMuNuCandidatePtr().

                                           {
  Candidate::LorentzVector p4(0, 0, 0, 0);
  Candidate::Charge charge = 0;
  size_t n = c.numberOfDaughters();
  for (size_t i = 0; i < n; ++i) {
    const Candidate *d = (const_cast<const Candidate &>(c)).daughter(i);
    p4 += d->p4();
    charge += d->charge();
  }
  c.setP4(p4);
  c.setCharge(charge);
}