LeptonTaggerByPt Class Reference

#include <LeptonTaggerByPt.h>

Inheritance diagram for LeptonTaggerByPt:

Public Member Functions
virtual float	discriminator (const TagInfoHelper &tagInfo) const
	b-tag a jet based on track-to-jet parameters in the extened info collection More...
	LeptonTaggerByPt (const edm::ParameterSet &configuration)
	explicit ctor More...
virtual	~LeptonTaggerByPt ()
	dtor More...
Public Member Functions inherited from JetTagComputer
const std::vector< std::string > &	getInputLabels () const
virtual void	initialize (const JetTagComputerRecord &)
	JetTagComputer ()
	JetTagComputer (const edm::ParameterSet &configuration)
float	operator() (const reco::BaseTagInfo &info) const
float	operator() (const TagInfoHelper &helper) const
void	setupDone ()
virtual	~JetTagComputer ()

Private Attributes
btag::LeptonSelector	m_selector

Additional Inherited Members
Protected Member Functions inherited from JetTagComputer
virtual float	discriminator (const reco::BaseTagInfo &) const
void	uses (unsigned int id, const std::string &label)
void	uses (const std::string &label)

Detailed Description

Implementation of muon b-tagging cutting on the lepton's transverse momentum relative to the jet axis

Author

Andrea 'fwyzard' Bocci, Universita' di Firenze

Definition at line 16 of file LeptonTaggerByPt.h.

Constructor & Destructor Documentation

LeptonTaggerByPt::LeptonTaggerByPt ( const edm::ParameterSet &  configuration )

inlineexplicit

explicit ctor

Definition at line 20 of file LeptonTaggerByPt.h.

References JetTagComputer::uses().

                                                                   :
    m_selector(configuration)
  { 
    uses("slTagInfos"); 
  }

virtual LeptonTaggerByPt::~LeptonTaggerByPt ( )

inlinevirtual

dtor

Definition at line 27 of file LeptonTaggerByPt.h.

{ }

Member Function Documentation

float LeptonTaggerByPt::discriminator ( const TagInfoHelper &  tagInfo ) const

virtual

b-tag a jet based on track-to-jet parameters in the extened info collection

Reimplemented from JetTagComputer.

Definition at line 8 of file LeptonTaggerByPt.cc.

References JetTagComputer::TagInfoHelper::get(), i, infinity, info(), reco::TemplatedSoftLeptonTagInfo< REF >::leptons(), m_selector, reco::TemplatedSoftLeptonTagInfo< REF >::properties(), reco::SoftLeptonProperties::ptRel, and GlobalPosition_Frontier_DevDB_cff::tag.

                                                                         {
  // default value, used if there are no leptons associated to this jet
  float bestTag = - std::numeric_limits<float>::infinity();
  const reco::CandSoftLeptonTagInfo & info = tagInfo.get<reco::CandSoftLeptonTagInfo>();
  // if there are multiple leptons, look for the one with the highest pT_rel
  for (unsigned int i = 0; i < info.leptons(); i++) {
    const reco::SoftLeptonProperties & properties = info.properties(i);
    if (m_selector(properties)) {
      float tag = properties.ptRel;
      if (tag > bestTag)
        bestTag = tag;
    }
  }
  return bestTag;
}

Member Data Documentation

btag::LeptonSelector LeptonTaggerByPt::m_selector

private

Definition at line 34 of file LeptonTaggerByPt.h.

Referenced by discriminator().