CandMCTagUtils Namespace Reference

Functions
std::vector< const reco::Candidate * >	getAncestors (const reco::Candidate &c)
bool	hasBottom (const reco::Candidate &c)
bool	hasCharm (const reco::Candidate &c)
bool	isLightParton (const reco::Candidate &c)
bool	isParton (const reco::Candidate &c)

Function Documentation

std::vector< const reco::Candidate * > CandMCTagUtils::getAncestors

(

const reco::Candidate &

c

)

Definition at line 10 of file CandMCTag.cc.

References trackerHits::c, reco::Candidate::mother(), and reco::Candidate::numberOfMothers().

Referenced by JetMCTagUtils::decayFromBHadron(), and JetMCTagUtils::decayFromCHadron().

{
  vector<const reco::Candidate *> moms;
  if( c.numberOfMothers() == 1 ) {
    const Candidate * dau = &c;
    const Candidate * mom = c.mother();
    while ( dau->numberOfMothers() == 1) {
      moms.push_back( dau );
      dau = mom ;
      mom = dau->mother();
    } 
  } 
  return moms;
}

bool CandMCTagUtils::hasBottom

(

const reco::Candidate &

c

)

Definition at line 26 of file CandMCTag.cc.

References abs, and reco::Candidate::pdgId().

Referenced by JetMCTagUtils::decayFromBHadron(), and HadronAndPartonSelector::produce().

{
  int code1;
  int code2;
  bool tmpHasBottom = false;
  code1 = (int)( ( abs(c.pdgId() ) / 100)%10 );
  code2 = (int)( ( abs(c.pdgId() ) /1000)%10 );
  if ( code1 == 5 || code2 == 5) tmpHasBottom = true;
  return tmpHasBottom;
 }

bool CandMCTagUtils::hasCharm

(

const reco::Candidate &

c

)

Definition at line 37 of file CandMCTag.cc.

References abs, and reco::Candidate::pdgId().

Referenced by JetMCTagUtils::decayFromCHadron(), and HadronAndPartonSelector::produce().

{
  int code1;
  int code2;
  bool tmpHasCharm = false;
  code1 = (int)( ( abs(c.pdgId() ) / 100)%10 );
  code2 = (int)( ( abs(c.pdgId() ) /1000)%10 );
  if ( code1 == 4 || code2 == 4) tmpHasCharm = true;
  return tmpHasCharm;
}

bool CandMCTagUtils::isLightParton

(

const reco::Candidate &

c

)

Definition at line 63 of file CandMCTag.cc.

References abs, and reco::Candidate::pdgId().

Referenced by JetFlavourClustering::setFlavours().

{
   int id = abs(c.pdgId());

   if( id == 1 ||
       id == 2 ||
       id == 3 ||
       id == 21 )
     return true;
   else
     return false;
}

bool CandMCTagUtils::isParton

(

const reco::Candidate &

c

)

Definition at line 48 of file CandMCTag.cc.

References abs, and reco::Candidate::pdgId().

Referenced by Herwig6PartonSelector::run(), HerwigppPartonSelector::run(), SherpaPartonSelector::run(), Pythia8PartonSelector::run(), Pythia6PartonSelector::run(), and InputGenJetsParticleSelector::testPartonChildren().

{
   int id = abs(c.pdgId());

   if( id == 1 ||
       id == 2 ||
       id == 3 ||
       id == 4 ||
       id == 5 ||
       id == 21 )
     return true;
   else
     return false;
}