btag::LeptonSelector Class Reference

#include <LeptonSelector.h>

Public Member Functions
bool	isAny () const
bool	isNegative () const
bool	isPositive () const
	LeptonSelector (const edm::ParameterSet &params)
bool	operator() (const reco::SoftLeptonProperties &properties, bool use3d=true) const
	~LeptonSelector ()

Private Types
enum	sign { negative = -1, any = 0, positive = 1 }
	optionally select leptons based on their impact parameter sign More...

Static Private Member Functions
static sign	option (const std::string &election)

Private Attributes
reco::SoftLeptonProperties::quality::Generic	m_leptonId
float	m_qualityCut
sign	m_sign

Detailed Description

Definition at line 12 of file LeptonSelector.h.

Member Enumeration Documentation

enum btag::LeptonSelector::sign

private

optionally select leptons based on their impact parameter sign

Enumerator
negative
any
positive

Definition at line 26 of file LeptonSelector.h.

              {
      negative = -1,
      any      =  0,
      positive =  1
    };

Constructor & Destructor Documentation

LeptonSelector::LeptonSelector

(

const edm::ParameterSet &

params

)

Definition at line 12 of file LeptonSelector.cc.

References edm::ParameterSet::exists(), edm::ParameterSet::getParameter(), m_leptonId, and m_qualityCut.

                                                            :
  m_sign(option(params.getParameter<std::string>("ipSign"))),
  m_leptonId(reco::SoftLeptonProperties::quality::btagLeptonCands),
  m_qualityCut(0.5)
{
  if (params.exists("leptonId") || params.exists("qualityCut")) {
    std::string leptonId = params.getParameter<std::string>("leptonId");
    m_leptonId = reco::SoftLeptonProperties::quality::byName<reco::SoftLeptonProperties::quality::Generic>(leptonId.c_str());
    m_qualityCut = params.getParameter<double>("qualityCut");
  }
}

LeptonSelector::~LeptonSelector

(

)

Definition at line 24 of file LeptonSelector.cc.

{
}

Member Function Documentation

bool btag::LeptonSelector::isAny ( ) const

inline

Definition at line 19 of file LeptonSelector.h.

References any, and m_sign.

{ return m_sign == any; }

bool btag::LeptonSelector::isNegative ( ) const

inline

Definition at line 21 of file LeptonSelector.h.

References m_sign, and negative.

Referenced by LeptonTaggerByIP::discriminator(), MuonTagger::discriminator(), ElectronTagger::discriminator(), and operator()().

{ return m_sign == negative; }

bool btag::LeptonSelector::isPositive ( ) const

inline

Definition at line 20 of file LeptonSelector.h.

References m_sign, and positive.

Referenced by operator()().

{ return m_sign == positive; }

bool LeptonSelector::operator()	(	const reco::SoftLeptonProperties &	properties,
		bool	use3d = true
	)		const

Definition at line 28 of file LeptonSelector.cc.

References reco::SoftLeptonProperties::quality::btagLeptonCands, isNegative(), isPositive(), m_leptonId, m_qualityCut, reco::SoftLeptonProperties::quality(), sip, reco::SoftLeptonProperties::sip2d, reco::SoftLeptonProperties::sip3d, and reco::SoftLeptonProperties::quality::undef.

{
  float sip = use3d ? properties.sip3d : properties.sip2d;
  if ((isPositive() && sip <= 0.0) ||
      (isNegative() && sip >= 0.0))
    return false;

  bool candSelection = (m_leptonId == reco::SoftLeptonProperties::quality::btagLeptonCands);
  float quality = properties.quality(m_leptonId, !candSelection);
  if (candSelection && quality == reco::SoftLeptonProperties::quality::undef)
   return true;     // for backwards compatibility

  return quality > m_qualityCut;
}

LeptonSelector::sign LeptonSelector::option ( const std::string &  election )

staticprivate

Definition at line 43 of file LeptonSelector.cc.

References any, edm::errors::Configuration, edm::hlt::Exception, negative, and positive.

{
  if (selection == "any")
    return any;
  else if (selection == "negative")
    return negative;
  else if (selection == "positive")
    return positive;
  else 
    throw edm::Exception( edm::errors::Configuration ) << "invalid parameter specified for soft lepton selection";
}

Member Data Documentation

reco::SoftLeptonProperties::quality::Generic btag::LeptonSelector::m_leptonId

private

Definition at line 35 of file LeptonSelector.h.

Referenced by LeptonSelector(), and operator()().

float btag::LeptonSelector::m_qualityCut

private

Definition at line 36 of file LeptonSelector.h.

Referenced by LeptonSelector(), and operator()().

sign btag::LeptonSelector::m_sign

private

Definition at line 34 of file LeptonSelector.h.

Referenced by isAny(), isNegative(), and isPositive().