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Protection for pt=0 ghost candidates in jet flavor clustering (62X_SLHC) #9192

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merged 1 commit into from May 22, 2015
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Protection for pt=0 ghost candidates in jet flavor clustering (62X_SLHC) #9192

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5 changes: 5 additions & 0 deletions PhysicsTools/JetMCAlgos/plugins/JetFlavourClustering.cc
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Expand Up @@ -467,6 +467,11 @@ JetFlavourClustering::insertGhosts(const edm::Handle<reco::GenParticleRefVector>
// insert "ghost" particles in the vector of jet constituents
for(reco::GenParticleRefVector::const_iterator it = particles->begin(); it != particles->end(); ++it)
{
if((*it)->pt() == 0)
{
edm::LogInfo("NullTransverseMomentum") << "dropping input ghost candidate with pt=0";
continue;
}
fastjet::PseudoJet p((*it)->px(),(*it)->py(),(*it)->pz(),(*it)->energy());
p*=ghostRescaling; // rescale particle momentum
p.set_user_info(new GhostInfo(isHadron, isbHadron, isParton, isLepton, *it));
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