#include <FlavorHistoryProducer.h>

Inheritance diagram for FlavorHistoryProducer:

Public Member Functions
	FlavorHistoryProducer (const edm::ParameterSet &)
	constructor More...

	~FlavorHistoryProducer ()
	destructor More...

Public Member Functions inherited from edm::EDProducer
	EDProducer ()

ModuleDescription const &	moduleDescription () const

virtual	~EDProducer ()

Public Member Functions inherited from edm::ProducerBase
	ProducerBase ()

void	registerProducts (ProducerBase , ProductRegistry , ModuleDescription const &)

std::function< void(BranchDescription const &)>	registrationCallback () const
	used by the fwk to register list of products More...

virtual	~ProducerBase ()

Public Member Functions inherited from edm::EDConsumerBase
	EDConsumerBase ()

ProductHolderIndexAndSkipBit	indexFrom (EDGetToken, BranchType, TypeID const &) const

void	itemsMayGet (BranchType, std::vector< ProductHolderIndexAndSkipBit > &) const

void	itemsToGet (BranchType, std::vector< ProductHolderIndexAndSkipBit > &) const

std::vector < ProductHolderIndexAndSkipBit > const &	itemsToGetFromEvent () const

void	labelsForToken (EDGetToken iToken, Labels &oLabels) const

bool	registeredToConsume (ProductHolderIndex, bool, BranchType) const

bool	registeredToConsumeMany (TypeID const &, BranchType) const

void	updateLookup (BranchType iBranchType, ProductHolderIndexHelper const &)

virtual	~EDConsumerBase ()

Private Member Functions
void	getAncestors (const reco::Candidate &c, std::vector< reco::Candidate const * > &moms)

reco::CandidateView::const_iterator	getClosestJet (edm::Handle< reco::CandidateView > const &pJets, reco::Candidate const &parton) const

reco::Candidate const *	getSister (const reco::Candidate &c)

void	produce (edm::Event &e, const edm::EventSetup &) override
	process one event More...

Private Attributes
double	etaMaxParticle_

double	etaMaxShower_

std::string	flavorHistoryName_

double	matchDR_

edm::EDGetTokenT < reco::CandidateView >	matchedSrcToken_

int	pdgIdToSelect_

double	ptMinParticle_

double	ptMinShower_

edm::EDGetTokenT < reco::CandidateView >	srcToken_

bool	verbose_

Additional Inherited Members
Public Types inherited from edm::EDProducer
typedef EDProducer	ModuleType

Public Types inherited from edm::ProducerBase
typedef ProductRegistryHelper::TypeLabelList	TypeLabelList

Static Public Member Functions inherited from edm::EDProducer
static const std::string &	baseType ()

static void	fillDescriptions (ConfigurationDescriptions &descriptions)

static void	prevalidate (ConfigurationDescriptions &descriptions)

Protected Member Functions inherited from edm::ProducerBase
void	callWhenNewProductsRegistered (std::function< void(BranchDescription const &)> const &func)

Protected Member Functions inherited from edm::EDConsumerBase
template<typename ProductType , BranchType B = InEvent>
EDGetTokenT< ProductType >	consumes (edm::InputTag const &tag)

EDGetToken	consumes (const TypeToGet &id, edm::InputTag const &tag)

template<BranchType B>
EDGetToken	consumes (TypeToGet const &id, edm::InputTag const &tag)

ConsumesCollector	consumesCollector ()
	Use a ConsumesCollector to gather consumes information from helper functions. More...

template<typename ProductType , BranchType B = InEvent>
void	consumesMany ()

void	consumesMany (const TypeToGet &id)

template<BranchType B>
void	consumesMany (const TypeToGet &id)

template<typename ProductType , BranchType B = InEvent>
EDGetTokenT< ProductType >	mayConsume (edm::InputTag const &tag)

EDGetToken	mayConsume (const TypeToGet &id, edm::InputTag const &tag)

template<BranchType B>
EDGetToken	mayConsume (const TypeToGet &id, edm::InputTag const &tag)

Detailed Description

class

Author: Stephen Mrenna, FNAL

Version: $Id: FlavorHistoryProducer.cc,v 1.0

Definition at line 57 of file FlavorHistoryProducer.h.

Constructor & Destructor Documentation

FlavorHistoryProducer::FlavorHistoryProducer ( const edm::ParameterSet & p )

constructor

Definition at line 38 of file FlavorHistoryProducer.cc.

References flavorHistoryName_.

                                                                      :
   srcToken_( consumes<CandidateView>( p.getParameter<InputTag>( "src" ) ) ),
   matchedSrcToken_( consumes<CandidateView>( p.getParameter<InputTag>( "matchedSrc") ) ),
   matchDR_ ( p.getParameter<double> ("matchDR") ),
   pdgIdToSelect_( p.getParameter<int> ("pdgIdToSelect") ),
   ptMinParticle_( p.getParameter<double>( "ptMinParticle") ),
   ptMinShower_( p.getParameter<double>( "ptMinShower") ),
   etaMaxParticle_( p.getParameter<double>( "etaMaxParticle" )),
   etaMaxShower_( p.getParameter<double>( "etaMaxShower" )),
   flavorHistoryName_( p.getParameter<string>("flavorHistoryName") ),
   verbose_( p.getUntrackedParameter<bool>( "verbose" ) )
 {
   produces<FlavorHistoryEvent >(flavorHistoryName_);
 }

FlavorHistoryProducer::~FlavorHistoryProducer ( )

destructor

Definition at line 53 of file FlavorHistoryProducer.cc.

53 {

54 }

Member Function Documentation

void FlavorHistoryProducer::getAncestors	(	const reco::Candidate &	c,
		std::vector< reco::Candidate const * > &	moms
	)

private

Definition at line 329 of file FlavorHistoryProducer.cc.

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

Referenced by produce().

 {
 
   if( c.numberOfMothers() == 1 ) {
     const Candidate * dau = &c;
     const Candidate * mom = c.mother();
     while ( dau->numberOfMothers() != 0) {
       moms.push_back( dau );
       dau = mom ;
       mom = dau->mother();
     }
   }
 }

CandidateView::const_iterator FlavorHistoryProducer::getClosestJet	(	edm::Handle< reco::CandidateView > const &	pJets,
		reco::Candidate const &	parton
	)		const

private

Definition at line 346 of file FlavorHistoryProducer.cc.

References deltaR(), j, matchDR_, and reco::Candidate::p4().

Referenced by produce().

 {
   double dr = matchDR_;
   CandidateView::const_iterator j = pJets->begin(),
     jend = pJets->end();
   CandidateView::const_iterator bestJet = pJets->end();
   for ( ; j != jend; ++j ) {
     double dri = deltaR( parton.p4(), j->p4() );
     if ( dri < dr ) {
       dr = dri;
       bestJet = j;
     }
   }
   return bestJet;
 }

reco::Candidate const* FlavorHistoryProducer::getSister ( const reco::Candidate & c )

private

void FlavorHistoryProducer::produce	(	edm::Event &	e,
		const edm::EventSetup &
	)

overrideprivatevirtual

process one event

Implements edm::EDProducer.

Definition at line 56 of file FlavorHistoryProducer.cc.

References funct::abs(), gather_cfg::cout, eta(), etaMaxShower_, spr::find(), flavorHistoryName_, newFWLiteAna::found, getAncestors(), edm::Event::getByToken(), getClosestJet(), i, cuy::ii, j, findQualityFiles::jj, matchedSrcToken_, reco::Candidate::numberOfMothers(), AlCaHLTBitMon_ParallelJobs::p, benchmark_cfg::pdgId, reco::Candidate::pdgId(), pdgIdToSelect_, ptMinShower_, edm::Event::put(), srcToken_, reco::Candidate::status(), ntuplemaker::status, and verbose_.

 {
   if ( verbose_ ) cout << "---------- Hello from FlavorHistoryProducer! -----" << endl;
 
   // Get a handle to the particle collection (OwnVector)
   Handle<CandidateView > particlesViewH;
   evt.getByToken( srcToken_, particlesViewH );
 
   Handle<CandidateView> matchedView;
   evt.getByToken( matchedSrcToken_, matchedView );
 
   // Copy the View to an vector for easier iterator manipulation convenience
   vector<const Candidate* > particles;
   for( CandidateView::const_iterator p = particlesViewH->begin();  p != particlesViewH->end(); ++p ) {
     particles.push_back(&*p);
   }
 
   // List of indices for the partons to add
   vector<int> partonIndices;
   // List of progenitors for those partons
   vector<int> progenitorIndices;
   // List of sisters for those partons
   vector<int> sisterIndices;
   // Flavor sources
   vector<FlavorHistory::FLAVOR_T> flavorSources;
 
   // Make a new flavor history vector
   auto_ptr<FlavorHistoryEvent > flavorHistoryEvent ( new FlavorHistoryEvent () ) ;
 
   // ------------------------------------------------------------
   // Loop over partons
   // ------------------------------------------------------------
   vector<const Candidate* >::size_type j;
   vector<const Candidate* >::size_type j_max = particles.size();
   for( j=0; j<j_max; ++j ) {
 
     // Get the candidate
     const Candidate *p = particles[j];
     // Set up indices that we'll need for the flavor history
     vector<Candidate const *>::size_type partonIndex=j;
     vector<Candidate const *>::size_type progenitorIndex=j_max;
     bool foundProgenitor = false;
     FlavorHistory::FLAVOR_T flavorSource=FlavorHistory::FLAVOR_NULL;
 
 
     int idabs = std::abs( (p)->pdgId() );
     int nDa = (p)->numberOfDaughters();
 
     // Check if we have a status 2 or 3 particle, which is a parton before the string.
     // Only consider quarks.
     if ( idabs <= FlavorHistory::tQuarkId && p->status() == 2 &&
      idabs == pdgIdToSelect_ ) {
       // Ensure the parton in question has daughters
       if ( nDa > 0 ) {
     // Ensure the parton passes some minimum kinematic cuts
     if((p)->pt() > ptMinShower_ && fabs((p)->eta())<etaMaxShower_) {
 
       if(verbose_) cout << "--------------------------" << endl;
       if(verbose_) cout << "Processing particle " << j << ", status = " << p->status() << ", pdg id = " << p->pdgId() << endl;
 
 
       //Main (but simple) workhorse to get all ancestors
       vector<Candidate const *> allParents;
       getAncestors( *p, allParents );
 
       if(verbose_) {
         cout << "Parents : " << endl;
         vector<Candidate const *>::const_iterator iprint = allParents.begin(),
           iprintend = allParents.end();
         for ( ; iprint != iprintend; ++iprint )
           cout << " status = " << (*iprint)->status() << ", pdg id = " << (*iprint)->pdgId() << ", pt = " << (*iprint)->pt() << endl;
       }
 
       // -------------------------------------------------------------
       // Identify the ancestry of the Quark
       //
       //
       // Matrix Element:
       //    Status 3 parent with precisely 2 "grandparents" that
       //    is outside of the "initial" section (0-5) that has the
       //    same ID as the status 2 parton in question.
       //
       // Flavor excitation:
       //    If we find only one outgoing parton.
       //
       // Gluon splitting:
       //    Parent is a quark of a different flavor than the parton
       //    in question, or a gluon.
       //    Can come from either ISR or FSR.
       //
       // True decay:
       //    Decays from a resonance like top, Higgs, etc.
       // -------------------------------------------------------------
       vector<Candidate const *>::size_type a_size = allParents.size();
 
       //
       // Loop over all the ancestors of this parton and find the progenitor.
       //
       for( vector<Candidate const *>::size_type i=0 ; i < a_size && !foundProgenitor; ++i ) {
         const Candidate * aParent=allParents[i];
         vector<Candidate const *>::const_iterator found = find(particles.begin(),particles.end(),aParent);
 
 
         // Get the index of the progenitor candidate
         progenitorIndex = found - particles.begin();
 
         int aParentId = std::abs(aParent->pdgId());
 
         // -----------------------------------------------------------------------
         // Here we examine particles that were produced after the collision
         // -----------------------------------------------------------------------
         if( progenitorIndex > 5 ) {
           // Here is where we have a matrix element process.
           // The signature is to have a status 3 parent with precisely 2 parents
           // that is outside of the "initial" section (0-5) that has the
           // same ID as the status 2 parton in question.
           // NOTE: If this parton has no sister, then this will be classified as
           // a flavor excitation. Often the only difference is that the matrix element
           // cases have a sister, while the flavor excitation cases do not.
           // If we do not find a sister below, this will be classified as a flavor
           // excitation.
           if(  aParent->numberOfMothers() == 2 &&
           aParent->pdgId() == p->pdgId() && aParent->status() == 3 ) {
         if(verbose_) cout << "Matrix Element progenitor" << endl;
         if ( flavorSource == FlavorHistory::FLAVOR_NULL ) flavorSource = FlavorHistory::FLAVOR_ME;
         foundProgenitor = true;
           }
           // Here we have a true decay. Parent is not a quark or a gluon.
           else if( (aParentId>pdgIdToSelect_ && aParentId<FlavorHistory::gluonId) ||
                aParentId > FlavorHistory::gluonId ) {
         if(verbose_) cout << "Flavor decay progenitor" << endl;
         if ( flavorSource == FlavorHistory::FLAVOR_NULL ) flavorSource = FlavorHistory::FLAVOR_DECAY;
         foundProgenitor = true;
           }
         }// end if progenitorIndex > 5
       }// end loop over parents
 
       // Otherwise, classify it as gluon splitting. Take the first status 3 parton with 1 parent
       // that you see as the progenitor
       if ( !foundProgenitor  ) {
         if ( flavorSource == FlavorHistory::FLAVOR_NULL ) flavorSource = FlavorHistory::FLAVOR_GS;
         // Now get the parton with only one parent (the proton) and that is the progenitor
         for( vector<Candidate const *>::size_type i=0 ; i < a_size && !foundProgenitor; ++i ) {
           const Candidate * aParent=allParents[i];
           vector<Candidate const *>::const_iterator found = find(particles.begin(),particles.end(),aParent);
           // Get the index of the progenitor candidate
           progenitorIndex = found - particles.begin();
 
           if ( aParent->numberOfMothers() == 1 && aParent->status() == 3 ) {
         foundProgenitor = true;
           }
         }// end loop over parents
       }// end if we haven't found a progenitor, and if we haven't found a status 3 parton of the same flavor
        // (i.e. end if examining gluon splitting)
     }// End if this parton passes some minimal kinematic cuts
       }// End if this particle is status 2 (has strings as daughters)
 
 
 
       // Make sure we've actually found a progenitor
       if ( !foundProgenitor ) progenitorIndex = j_max;
 
       // We've found the particle, add to the list
 
       partonIndices.push_back( partonIndex );
       progenitorIndices.push_back( progenitorIndex );
       flavorSources.push_back(flavorSource);
       sisterIndices.push_back( -1 ); // set below
 
     }// End if this particle was a status==2 parton
   }// end loop over particles
 
   // Now add sisters.
   // Also if the event is preliminarily classified as "matrix element", check to
   // make sure that they have a sister. If not, it is flavor excitation.
 
   if ( verbose_ ) cout << "Making sisters" << endl;
   // First make sure nothing went terribly wrong:
   if ( partonIndices.size() == progenitorIndices.size() && partonIndices.size() > 0 ) {
     // Now loop over the candidates
     for ( unsigned int ii = 0; ii < partonIndices.size(); ++ii ) {
       // Get the iith particle
       const Candidate * candi = particles[partonIndices[ii]];
       if ( verbose_ ) cout << "   Sister candidate particle 1:  " << ii << ", pdgid = " << candi->pdgId() << ", status = " << candi->status() << endl;
       // Get the iith progenitor
       // Now loop over the other flavor history candidates and
       // attempt to find a sister to this one
       for ( unsigned int jj = 0; jj < partonIndices.size(); ++jj ) {
     if ( ii != jj ) {
       const Candidate * candj = particles[partonIndices[jj]];
       if ( verbose_ ) cout << "   Sister candidate particle 2:  " << jj << ", pdgid = " << candj->pdgId() << ", status = " << candj->status() << endl;
       // They should be opposite in pdgid and have the same status, and
       // the same progenitory.
       if ( candi->pdgId() == -1 * candj->pdgId() && candi->status() == candj->status()  ) {
         sisterIndices[ii] = partonIndices[jj];
         if ( verbose_ ) cout << "Parton " << partonIndices[ii] << " has sister " << sisterIndices[ii] << endl;
       }
     }
       }
 
       // Here, ensure that there is a sister. Otherwise this is "flavor excitation"
       if ( sisterIndices[ii] < 0 ) {
     if ( verbose_ ) cout << "No sister. Classified as flavor excitation" << endl;
     flavorSources[ii] = FlavorHistory::FLAVOR_EXC;
       }
 
       if ( verbose_ ) cout << "Getting matched jet" << endl;
       // Get the closest match in the matched object collection
       CandidateView::const_iterator matched = getClosestJet( matchedView, *candi );
       CandidateView::const_iterator matchedBegin = matchedView->begin();
       CandidateView::const_iterator matchedEnd = matchedView->end();
 
 
       if ( verbose_ ) cout << "Getting sister jet" << endl;
       // Get the closest sister in the matched object collection, if sister is found
       CandidateView::const_iterator sister =
     ( sisterIndices[ii] >= 0 && static_cast<unsigned int>(sisterIndices[ii]) < particles.size() ) ?
     getClosestJet( matchedView, *particles[sisterIndices[ii]] ) :
     matchedEnd ;
 
       if ( verbose_ ) cout << "Making matched shallow clones : ";
       ShallowClonePtrCandidate matchedCand ;
       if ( matched != matchedEnd ) {
     if ( verbose_ ) cout << " found" << endl;
     matchedCand = ShallowClonePtrCandidate( CandidatePtr(matchedView, matched - matchedBegin ) );
       } else {
     if ( verbose_ ) cout << " NOT found" << endl;
       }
 
       if ( verbose_ ) cout << "Making sister shallow clones : ";
       ShallowClonePtrCandidate sisterCand;
       if ( sister != matchedEnd ) {
     if ( verbose_ ) cout << " found" << endl;
     sisterCand = ShallowClonePtrCandidate( CandidatePtr(matchedView, sister - matchedBegin ) );
       } else {
     if ( verbose_ ) cout << " NOT found" << endl;
       }
 
       if ( verbose_ ) cout << "Making history object" << endl;
       // Now create the flavor history object
       FlavorHistory history (flavorSources[ii],
                  particlesViewH,
                  partonIndices[ii], progenitorIndices[ii], sisterIndices[ii],
                  matchedCand,
                  sisterCand );
       if ( verbose_ ) cout << "Adding flavor history : " << history << endl;
       flavorHistoryEvent->push_back( history );
     }
   }
 
   // If we got any partons, cache them and then write them out
   if ( flavorHistoryEvent->size() > 0 ) {
 
     // Calculate some nice variables for FlavorHistoryEvent
     if ( verbose_ ) cout << "Caching flavor history event" << endl;
     flavorHistoryEvent->cache();
 
     if ( verbose_ ) {
       cout << "Outputting pdg id = " << pdgIdToSelect_ << " with nelements = " << flavorHistoryEvent->size() << endl;
       vector<FlavorHistory>::const_iterator i = flavorHistoryEvent->begin(),
     iend = flavorHistoryEvent->end();
       for ( ; i !=iend; ++i ) {
     cout << *i << endl;
       }
     }
   }
 
   // Now add the flavor history to the event record
   evt.put( flavorHistoryEvent, flavorHistoryName_ );
 }

Member Data Documentation

double FlavorHistoryProducer::etaMaxParticle_

private

Definition at line 84 of file FlavorHistoryProducer.h.

double FlavorHistoryProducer::etaMaxShower_

private

Definition at line 85 of file FlavorHistoryProducer.h.

Referenced by produce().

std::string FlavorHistoryProducer::flavorHistoryName_

private

Definition at line 86 of file FlavorHistoryProducer.h.

Referenced by FlavorHistoryProducer(), and produce().

double FlavorHistoryProducer::matchDR_

private

Definition at line 80 of file FlavorHistoryProducer.h.

Referenced by getClosestJet().

edm::EDGetTokenT<reco::CandidateView> FlavorHistoryProducer::matchedSrcToken_

private

Definition at line 79 of file FlavorHistoryProducer.h.

Referenced by produce().

int FlavorHistoryProducer::pdgIdToSelect_

private

Definition at line 81 of file FlavorHistoryProducer.h.

Referenced by produce().

double FlavorHistoryProducer::ptMinParticle_

private

Definition at line 82 of file FlavorHistoryProducer.h.

double FlavorHistoryProducer::ptMinShower_

private

Definition at line 83 of file FlavorHistoryProducer.h.

Referenced by produce().

edm::EDGetTokenT<reco::CandidateView> FlavorHistoryProducer::srcToken_

private

Definition at line 78 of file FlavorHistoryProducer.h.

Referenced by produce().

bool FlavorHistoryProducer::verbose_

private

Definition at line 87 of file FlavorHistoryProducer.h.

Referenced by produce().

Public Member Functions

Private Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation