#include <ttHFGenFilter/ttHFGenFilter/plugins/ttHFGenFilter.cc>

Inheritance diagram for ttHFGenFilter:

Public Member Functions
	ttHFGenFilter (const edm::ParameterSet &)

	~ttHFGenFilter () override

Public Member Functions inherited from edm::stream::EDFilter<>
	EDFilter ()=default

bool	hasAbilityToProduceInLumis () const final

bool	hasAbilityToProduceInRuns () const final

Public Member Functions inherited from edm::stream::EDFilterBase
	EDFilterBase ()

ModuleDescription const &	moduleDescription () const

	~EDFilterBase () override

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

std::vector< edm::ProductResolverIndex > const &	indiciesForPutProducts (BranchType iBranchType) const

	ProducerBase ()

std::vector< edm::ProductResolverIndex > const &	putTokenIndexToProductResolverIndex () const

void	registerProducts (ProducerBase , ProductRegistry , ModuleDescription const &)

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

void	resolvePutIndicies (BranchType iBranchType, ModuleToResolverIndicies const &iIndicies, std::string const &moduleLabel)

	~ProducerBase () noexcept(false) override

Public Member Functions inherited from edm::EDConsumerBase
std::vector< ConsumesInfo >	consumesInfo () const

void	convertCurrentProcessAlias (std::string const &processName)
	Convert "@currentProcess" in InputTag process names to the actual current process name. More...

	EDConsumerBase ()

	EDConsumerBase (EDConsumerBase const &)=delete

	EDConsumerBase (EDConsumerBase &&)=default

ESProxyIndex const *	esGetTokenIndices (edm::Transition iTrans) const

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

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

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

std::vector< ProductResolverIndexAndSkipBit > const &	itemsToGetFrom (BranchType iType) const

void	labelsForToken (EDGetToken iToken, Labels &oLabels) const

void	modulesWhoseProductsAreConsumed (std::vector< ModuleDescription const * > &modules, ProductRegistry const &preg, std::map< std::string, ModuleDescription const * > const &labelsToDesc, std::string const &processName) const

EDConsumerBase const &	operator= (EDConsumerBase const &)=delete

EDConsumerBase &	operator= (EDConsumerBase &&)=default

bool	registeredToConsume (ProductResolverIndex, bool, BranchType) const

bool	registeredToConsumeMany (TypeID const &, BranchType) const

ProductResolverIndexAndSkipBit	uncheckedIndexFrom (EDGetToken) const

void	updateLookup (BranchType iBranchType, ProductResolverIndexHelper const &, bool iPrefetchMayGet)

void	updateLookup (eventsetup::ESRecordsToProxyIndices const &)

virtual	~EDConsumerBase () noexcept(false)

Static Public Member Functions
static void	fillDescriptions (edm::ConfigurationDescriptions &descriptions)

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

static void	fillDescriptions (ConfigurationDescriptions &descriptions)

static void	prevalidate (ConfigurationDescriptions &descriptions)

Private Member Functions
virtual bool	analyzeMothersRecursive (const reco::Candidate , std::vector< const reco::Candidate > &AllTopMothers)

void	beginStream (edm::StreamID) override

void	endStream () override

bool	filter (edm::Event &, const edm::EventSetup &) override

virtual void	FindAllTopMothers (const reco::Candidate particle, std::vector< const reco::Candidate > &)

virtual std::vector< const reco::Candidate * >	GetTops (const std::vector< reco::GenParticle > &, std::vector< const reco::Candidate * > &AllTopMothers)

virtual bool	HasAdditionalBHadron (const std::vector< int > &, const std::vector< int > &, const std::vector< reco::GenParticle > &, std::vector< const reco::Candidate * > &)

Private Attributes
const edm::EDGetTokenT< std::vector< int > >	genBHadFlavourToken_

const edm::EDGetTokenT< std::vector< int > >	genBHadFromTopWeakDecayToken_

const edm::EDGetTokenT< std::vector< int > >	genBHadIndexToken_

const edm::EDGetTokenT< std::vector< std::vector< int > > >	genBHadPlusMothersIndicesToken_

const edm::EDGetTokenT< std::vector< reco::GenParticle > >	genBHadPlusMothersToken_

const edm::EDGetTokenT< reco::GenParticleCollection >	genParticlesToken_

bool	OnlyHardProcessBHadrons_

bool	taggingMode_

Additional Inherited Members
Public Types inherited from edm::stream::EDFilter<>
typedef CacheContexts< T... >	CacheTypes

typedef CacheTypes::GlobalCache	GlobalCache

typedef AbilityChecker< T... >	HasAbility

typedef CacheTypes::LuminosityBlockCache	LuminosityBlockCache

typedef LuminosityBlockContextT< LuminosityBlockCache, RunCache, GlobalCache >	LuminosityBlockContext

typedef CacheTypes::LuminosityBlockSummaryCache	LuminosityBlockSummaryCache

typedef CacheTypes::RunCache	RunCache

typedef RunContextT< RunCache, GlobalCache >	RunContext

typedef CacheTypes::RunSummaryCache	RunSummaryCache

Public Types inherited from edm::stream::EDFilterBase
typedef EDFilterAdaptorBase	ModuleType

Public Types inherited from edm::ProducerBase
using	ModuleToResolverIndicies = std::unordered_multimap< std::string, std::tuple< edm::TypeID const , const char , edm::ProductResolverIndex >>

typedef ProductRegistryHelper::TypeLabelList	TypeLabelList

Public Types inherited from edm::EDConsumerBase
typedef ProductLabels	Labels

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 ESProduct , typename ESRecord , Transition Tr = Transition::Event>
auto	esConsumes ()

template<typename ESProduct , typename ESRecord , Transition Tr = Transition::Event>
auto	esConsumes (ESInputTag const &tag)

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

Description: Filters ttbar events, where additional b-hadrons come from ISR or hard process

Implementation: The ttHFGenFilter is a edm::Filter, that returns true, if a tt+jets event contains a b-hadron, that does not come from top decay or when the b-hadron comes from ISR. The filter uses the GenHFHadronMatcher to classify, whether the b-hadron is an "additional b-hadron". This is done in the ttHFGenFilter::HasAdditionalBHadron() function. To classify, whether the b-hadron comes from ISR: first all mothers of the top-topbar pair are found then the mother-chain of all b-hadrons is checked if it contains at least one mother, that is also in the mother-chain of the top-topbar pair

Definition at line 46 of file ttHFGenFilter.cc.

Constructor & Destructor Documentation

ttHFGenFilter::ttHFGenFilter ( const edm::ParameterSet & iConfig )

explicit

Definition at line 85 of file ttHFGenFilter.cc.

References edm::ParameterSet::getParameter(), OnlyHardProcessBHadrons_, and taggingMode_.

                                                           :
 genParticlesToken_(consumes<reco::GenParticleCollection>(iConfig.getParameter<edm::InputTag>("genParticles"))),
 genBHadFlavourToken_(consumes<std::vector<int> >(iConfig.getParameter<edm::InputTag>("genBHadFlavour"))),
 genBHadFromTopWeakDecayToken_(consumes<std::vector<int> >(iConfig.getParameter<edm::InputTag>("genBHadFromTopWeakDecay"))),
 genBHadPlusMothersToken_(consumes<std::vector<reco::GenParticle> >(iConfig.getParameter<edm::InputTag>("genBHadPlusMothers"))),
 genBHadPlusMothersIndicesToken_(consumes<std::vector<std::vector<int> > >(iConfig.getParameter<edm::InputTag>("genBHadPlusMothersIndices"))),
 genBHadIndexToken_(consumes<std::vector<int> >(iConfig.getParameter<edm::InputTag>("genBHadIndex")))
 {
   //now do what ever initialization is needed
   OnlyHardProcessBHadrons_ = iConfig.getParameter<bool> ( "OnlyHardProcessBHadrons" );
   taggingMode_ = iConfig.getParameter<bool>("taggingMode");
 
   produces<bool>();
 }

ttHFGenFilter::~ttHFGenFilter ( )

override

Definition at line 101 of file ttHFGenFilter.cc.

 {
 
    // do anything here that needs to be done at destruction time
    // (e.g. close files, deallocate resources etc.)
 
 }

Member Function Documentation

bool ttHFGenFilter::analyzeMothersRecursive	(	const reco::Candidate *	particle,
		std::vector< const reco::Candidate * > &	AllTopMothers
	)

privatevirtual

Definition at line 190 of file ttHFGenFilter.cc.

References mps_fire::i, gen::k, reco::Candidate::mother(), reco::Candidate::numberOfMothers(), and reco::Candidate::status().

Referenced by HasAdditionalBHadron().

                                                                                                                        {
   if(particle->status()>20&&particle->status()<30){ //particle comes from hardest process in event
     return true;
   }
   for(unsigned int k=0; k<AllTopMothers.size();k++){
     if(particle==AllTopMothers[k]){ //particle comes from  ISR
       return true;
     }
   }
   bool isFromHardProcess=false;
   for(unsigned int i=0;i<particle->numberOfMothers();i++){
     const reco::Candidate* mother = particle->mother(i);
     isFromHardProcess=analyzeMothersRecursive(mother,AllTopMothers);
     if(isFromHardProcess){
       return true;
     }
   }
   return isFromHardProcess;
 }

void ttHFGenFilter::beginStream ( edm::StreamID )

overrideprivatevirtual

Reimplemented from edm::stream::EDFilterBase.

Definition at line 267 of file ttHFGenFilter.cc.

268 {

269 }

void ttHFGenFilter::endStream ( )

overrideprivatevirtual

Reimplemented from edm::stream::EDFilterBase.

Definition at line 273 of file ttHFGenFilter.cc.

273 {

274 }

void ttHFGenFilter::fillDescriptions ( edm::ConfigurationDescriptions & descriptions )

static

Definition at line 310 of file ttHFGenFilter.cc.

References edm::ConfigurationDescriptions::addDefault(), DEFINE_FWK_MODULE, and edm::ParameterSetDescription::setUnknown().

                                                                           {
   //The following says we do not know what parameters are allowed so do no validation
   // Please change this to state exactly what you do use, even if it is no parameters
   edm::ParameterSetDescription desc;
   desc.setUnknown();
   descriptions.addDefault(desc);
 }

bool ttHFGenFilter::filter	(	edm::Event &	iEvent,
		const edm::EventSetup &	iSetup
	)

overrideprivate

Definition at line 116 of file ttHFGenFilter.cc.

References ttHFGenFilter_cfi::genBHadFlavour, genBHadFlavourToken_, ttHFGenFilter_cfi::genBHadFromTopWeakDecay, genBHadFromTopWeakDecayToken_, ttHFGenFilter_cfi::genBHadIndex, genBHadIndexToken_, ttHFGenFilter_cfi::genBHadPlusMothers, ttHFGenFilter_cfi::genBHadPlusMothersIndices, genBHadPlusMothersIndicesToken_, genBHadPlusMothersToken_, GenHFHadronMatcher_cfi::genParticles, genParticlesToken_, edm::Event::getByToken(), GetTops(), HasAdditionalBHadron(), edm::Event::put(), and taggingMode_.

 {
    using namespace std;
 
    //get GenParticleCollection
    edm::Handle<reco::GenParticleCollection> genParticles;
    iEvent.getByToken(genParticlesToken_, genParticles);
 
    //get Information on B-Hadrons
    // the information is calculated in GenHFHadronMatcher
 
    edm::Handle<std::vector<int> > genBHadFlavour;
    iEvent.getByToken(genBHadFlavourToken_, genBHadFlavour);
 
    edm::Handle<std::vector<int> > genBHadFromTopWeakDecay;
    iEvent.getByToken(genBHadFromTopWeakDecayToken_, genBHadFromTopWeakDecay);
 
    edm::Handle<std::vector<reco::GenParticle> > genBHadPlusMothers;
    iEvent.getByToken(genBHadPlusMothersToken_, genBHadPlusMothers);
 
    edm::Handle<std::vector<std::vector<int> > > genBHadPlusMothersIndices;
    iEvent.getByToken(genBHadPlusMothersIndicesToken_, genBHadPlusMothersIndices);
 
    edm::Handle<std::vector<int> > genBHadIndex;
    iEvent.getByToken(genBHadIndexToken_, genBHadIndex);
 
 
    //check whether the event has additional b-hadrons not coming from top/topbar decay
 
    std::vector<const reco::Candidate*> AllTopMothers;
    std::vector<const reco::Candidate*> Tops = GetTops(*genParticles,AllTopMothers);
    
    bool pass = HasAdditionalBHadron(*genBHadIndex,*genBHadFlavour,*genBHadPlusMothers,AllTopMothers);
 
    iEvent.put(std::make_unique<bool>(pass));
 
    return taggingMode_ || pass;
 
 }

void ttHFGenFilter::FindAllTopMothers	(	const reco::Candidate *	particle,
		std::vector< const reco::Candidate * > &	AllTopMothers
	)

privatevirtual

Definition at line 250 of file ttHFGenFilter.cc.

References funct::abs(), mps_fire::i, reco::Candidate::mother(), reco::Candidate::numberOfMothers(), and reco::Candidate::pdgId().

Referenced by GetTops().

                                                                                                                   {
  // std::cout << "particle mother: " << particle->mother(0) << std::endl;
   for(unsigned int i=0;i<particle->numberOfMothers();i++){
     if(abs(particle->mother(i)->pdgId())!=6 && particle->mother(i)->pdgId()!=2212){
       AllTopMothers.push_back(particle->mother(i));
       if(particle->mother(i)->pdgId()!=2212 || particle->mother(i)->numberOfMothers()>1){
         //std::cout << "Size of vector in loop = " << AllTopMothers.size() << std::endl;
         FindAllTopMothers(particle->mother(i),AllTopMothers);
       }
     }
   }
 
 }

std::vector< const reco::Candidate * > ttHFGenFilter::GetTops	(	const std::vector< reco::GenParticle > &	genParticles,
		std::vector< const reco::Candidate * > &	AllTopMothers
	)

privatevirtual

Definition at line 210 of file ttHFGenFilter.cc.

References FindAllTopMothers(), mps_fire::i, reco::CompositeRefCandidateT< D >::mother(), reco::CompositeRefCandidateT< D >::numberOfMothers(), and reco::LeafCandidate::pdgId().

Referenced by filter().

                                                                                                                                                      {
   //  std::vector<const reco::Candidate*> tops;
   const reco::GenParticle* firstTop = nullptr;
   const reco::GenParticle* firstTopBar = nullptr;
   bool foundTop = false;
   bool foundTopBar = false;
   std::vector<const reco::GenParticle*> Tops;
 
   //loop over all genParticles and find  a Top and AntiTop quark
   //then find all mothers of the Tops
   //this is then used to  if the b-hadron is an inital state radiation particle
 
    for(reco::GenParticleCollection::const_iterator i_particle = genParticles.begin(); i_particle != genParticles.end(); ++i_particle){
      const reco::GenParticle* thisParticle = &*i_particle;
      if(!foundTop && thisParticle->pdgId()==6){
        firstTop = thisParticle;
        for(unsigned int i=0; i<firstTop->numberOfMothers();i++){
          FindAllTopMothers(thisParticle->mother(i),AllTopMothers);
        }
        foundTop = true;
      }
      else if(!foundTopBar && thisParticle->pdgId()==-6){
        firstTopBar = thisParticle;
        for(unsigned int i=0; i<firstTopBar->numberOfMothers();i++){
          FindAllTopMothers(firstTopBar->mother(i),AllTopMothers);
        }
        foundTopBar = true;
      }
      if(foundTopBar&&foundTop){
        //tops.push_back(firstTop);
        //tops.push_back(firstTopBar);
        //return tops;
        break;
      }
    }
    return AllTopMothers;
 }

bool ttHFGenFilter::HasAdditionalBHadron	(	const std::vector< int > &	genBHadIndex,
		const std::vector< int > &	genBHadFlavour,
		const std::vector< reco::GenParticle > &	genBHadPlusMothers,
		std::vector< const reco::Candidate * > &	AllTopMothers
	)

privatevirtual

Definition at line 156 of file ttHFGenFilter.cc.

References funct::abs(), analyzeMothersRecursive(), mps_fire::i, createfilelist::int, and OnlyHardProcessBHadrons_.

Referenced by filter().

                                                                                                                                                                                                                     {
 
   for(unsigned int i=0; i<genBHadIndex.size();i++){
 
     const reco::GenParticle* bhadron = genBHadIndex[i]>=0&&genBHadIndex[i]<int(genBHadPlusMothers.size()) ? &(genBHadPlusMothers[genBHadIndex[i]]) : nullptr;
     int motherflav = genBHadFlavour[i];
     bool from_tth=(abs(motherflav)==6||abs(motherflav)==25); //b-hadron comes from top or higgs decay
     bool fromhp=false;
 
   if(!OnlyHardProcessBHadrons_){
     if(bhadron!=nullptr&&!from_tth){
       return true;
     }
   }
 
   if(OnlyHardProcessBHadrons_){
     if(bhadron!=nullptr&&!from_tth){
       //std::cout << "PT: " << bhadron->pt() << " , eta: " << bhadron->eta() << std::endl;
 
       fromhp=analyzeMothersRecursive(bhadron,AllTopMothers);
       if(fromhp){
     return true;
       }
     }
     if(i==genBHadIndex.size()-1){
     return false;
     }
   }
 }
 
   return false;
 }

Member Data Documentation

const edm::EDGetTokenT<std::vector<int> > ttHFGenFilter::genBHadFlavourToken_

private

Definition at line 64 of file ttHFGenFilter.cc.

Referenced by filter().

const edm::EDGetTokenT<std::vector<int> > ttHFGenFilter::genBHadFromTopWeakDecayToken_

private

Definition at line 65 of file ttHFGenFilter.cc.

Referenced by filter().

const edm::EDGetTokenT<std::vector<int> > ttHFGenFilter::genBHadIndexToken_

private

Definition at line 68 of file ttHFGenFilter.cc.

Referenced by filter().

const edm::EDGetTokenT<std::vector<std::vector<int> > > ttHFGenFilter::genBHadPlusMothersIndicesToken_

private

Definition at line 67 of file ttHFGenFilter.cc.

Referenced by filter().

const edm::EDGetTokenT<std::vector<reco::GenParticle> > ttHFGenFilter::genBHadPlusMothersToken_

private

Definition at line 66 of file ttHFGenFilter.cc.

Referenced by filter().

const edm::EDGetTokenT<reco::GenParticleCollection> ttHFGenFilter::genParticlesToken_

private

Definition at line 63 of file ttHFGenFilter.cc.

Referenced by filter().

bool ttHFGenFilter::OnlyHardProcessBHadrons_

private

Definition at line 69 of file ttHFGenFilter.cc.

Referenced by HasAdditionalBHadron(), and ttHFGenFilter().

bool ttHFGenFilter::taggingMode_

private

Definition at line 70 of file ttHFGenFilter.cc.

Referenced by filter(), and ttHFGenFilter().

Public Member Functions

Static Public Member Functions

Private Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation