JetSubStructureUtils::KtMassDrop Class Reference

#include <KtMassDrop.h>

Inheritance diagram for JetSubStructureUtils::KtMassDrop:

Collaboration diagram for JetSubStructureUtils::KtMassDrop:

Public Member Functions
virtual double	result (const fastjet::PseudoJet &jet) const
virtual TOut	result (const xAOD::Jet &jet) const

Detailed Description

Definition at line 11 of file KtMassDrop.h.

Member Function Documentation

result() [1/2]

double KtMassDrop::result ( const fastjet::PseudoJet & jet ) const

virtual

Definition at line 14 of file KtMassDrop.cxx.

{
  if(jet.m() == 0 ) return -1;
  if(jet.constituents().empty()) return -1;
    
  fastjet::JetDefinition jet_def = fastjet::JetDefinition(fastjet::kt_algorithm, 1.5,
                                                          fastjet::E_scheme, fastjet::Best);
  fastjet::ClusterSequence kt_clust_seq(jet.constituents(), jet_def);
  fastjet::PseudoJet kt_jet = fastjet::sorted_by_pt(kt_clust_seq.inclusive_jets()).front();
 
  fastjet::PseudoJet p1, p2;
  if(kt_jet.has_parents(p1, p2)) {
    return fmax(p1.m(), p2.m()) / jet.m();
  }
 
  // No parents
  return -1;
}

result() [2/2]

virtual TOut JetSubStructureUtils::SubstructureCalculator< TOut >::result ( const xAOD::Jet & jet ) const

inlinevirtual

Reimplemented from JetSubStructureUtils::SubstructureCalculator< double >.

Definition at line 25 of file SubstructureCalculator.h.

                                                    {
        // PS 4/18 master developent
        // std::vector<fastjet::PseudoJet> constit_pseudojets =
        //   jet::JetConstituentFiller::constituentPseudoJets(jet);
 
        std::vector<fastjet::PseudoJet> constit_pseudojets;
        std::transform(jet.getConstituents().begin(),
                       jet.getConstituents().end(),
                       std::back_inserter(constit_pseudojets),
                       [](const auto& c){
                         const xAOD::IParticle* ip = c->rawConstituent();
                         return
                           // fastjet::PseudoJet((c->rawConstituent())->p4());
                           fastjet::PseudoJet(ip->p4());
                       });
 
        fastjet::PseudoJet pjet = fastjet::join(constit_pseudojets);
 
        return result(pjet);
      }

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

• KtMassDrop.h
• KtMassDrop.cxx