JetSubStructureUtils::KtSplittingScale Class Reference

#include <KtSplittingScale.h>

Inheritance diagram for JetSubStructureUtils::KtSplittingScale:

Collaboration diagram for JetSubStructureUtils::KtSplittingScale:

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

Private Attributes
unsigned int	m_nSubJets

Detailed Description

Definition at line 11 of file KtSplittingScale.h.

Constructor & Destructor Documentation

KtSplittingScale()

JetSubStructureUtils::KtSplittingScale::KtSplittingScale ( unsigned int nSubJets )

inline

Definition at line 13 of file KtSplittingScale.h.

: m_nSubJets(nSubJets) {};

Member Function Documentation

result() [1/2]

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

virtual

Definition at line 12 of file KtSplittingScale.cxx.

{
  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();
  double split = 1.5*sqrt(kt_clust_seq.exclusive_subdmerge(kt_jet, m_nSubJets));
  return split;
}

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);
      }

Member Data Documentation

m_nSubJets

unsigned int JetSubStructureUtils::KtSplittingScale::m_nSubJets

private

Definition at line 19 of file KtSplittingScale.h.

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

• KtSplittingScale.h
• KtSplittingScale.cxx