#include <TtSemiLepHitFitProducer.h>

Inheritance diagram for TtSemiLepHitFitProducer< LeptonCollection >:

Classes
struct	FitResult

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

	~TtSemiLepHitFitProducer () override

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

SerialTaskQueue *	globalLuminosityBlocksQueue ()

SerialTaskQueue *	globalRunsQueue ()

ModuleDescription const &	moduleDescription () const

	~EDProducer () 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

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)

virtual	~EDConsumerBase () noexcept(false)

Private Types
typedef hitfit::RunHitFit< pat::Electron, pat::Muon, pat::Jet, pat::MET >	PatHitFit

Private Member Functions
void	produce (edm::Event &, const edm::EventSetup &) override

Private Attributes
std::string	bTagAlgo_
	input tag for b-tagging algorithm More...

hitfit::LeptonTranslatorBase< pat::Electron >	electronTranslator_

PatHitFit *	HitFit

edm::FileInPath	hitfitBJetResolution_

edm::FileInPath	hitfitDefault_

edm::FileInPath	hitfitElectronResolution_

edm::FileInPath	hitfitMETResolution_

edm::FileInPath	hitfitMuonResolution_

edm::FileInPath	hitfitUdscJetResolution_

double	jes_
	jet energy scale More...

double	jesB_

std::string	jetCorrectionLevel_
	jet correction level More...

edm::EDGetTokenT< std::vector< pat::Jet > >	jetsToken_

hitfit::JetTranslatorBase< pat::Jet >	jetTranslator_

edm::EDGetTokenT< LeptonCollection >	lepsToken_

double	maxBTagValueNonBJet_
	max value of bTag for a non-b-jet More...

double	maxEtaEle_
	maximum eta value for electrons, needed to limited range in which resolutions are provided More...

double	maxEtaJet_
	maximum eta value for jets, needed to limited range in which resolutions are provided More...

double	maxEtaMu_
	maximum eta value for muons, needed to limited range in which resolutions are provided More...

int	maxNComb_
	maximal number of combinations to be written to the event More...

int	maxNJets_
	maximal number of jets (-1 possible to indicate 'all') More...

edm::EDGetTokenT< std::vector< pat::MET > >	metsToken_

hitfit::METTranslatorBase< pat::MET >	metTranslator_

double	minBTagValueBJet_
	min value of bTag for a b-jet More...

double	mTop_

hitfit::LeptonTranslatorBase< pat::Muon >	muonTranslator_

double	mW_
	constraints More...

bool	useBTag_
	switch to tell whether to use b-tagging or not More...

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

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

static void	fillDescriptions (ConfigurationDescriptions &descriptions)

static void	prevalidate (ConfigurationDescriptions &descriptions)

static bool	wantsGlobalLuminosityBlocks ()

static bool	wantsGlobalRuns ()

static bool	wantsStreamLuminosityBlocks ()

static bool	wantsStreamRuns ()

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

template<typename LeptonCollection>
class TtSemiLepHitFitProducer< LeptonCollection >

Definition at line 20 of file TtSemiLepHitFitProducer.h.

Member Typedef Documentation

template<typename LeptonCollection >

typedef hitfit::RunHitFit<pat::Electron,pat::Muon,pat::Jet,pat::MET> TtSemiLepHitFitProducer< LeptonCollection >::PatHitFit

private

Definition at line 83 of file TtSemiLepHitFitProducer.h.

Constructor & Destructor Documentation

template<typename LeptonCollection >

TtSemiLepHitFitProducer< LeptonCollection >::TtSemiLepHitFitProducer ( const edm::ParameterSet & cfg )

explicit

Definition at line 101 of file TtSemiLepHitFitProducer.h.

                                                                                             :
   jetsToken_                    (consumes<std::vector<pat::Jet> >(cfg.getParameter<edm::InputTag>("jets"))),
   lepsToken_                    (consumes<LeptonCollection>(cfg.getParameter<edm::InputTag>("leps"))),
   metsToken_                    (consumes<std::vector<pat::MET> >(cfg.getParameter<edm::InputTag>("mets"))),
   maxNJets_                (cfg.getParameter<int>          ("maxNJets"            )),
   maxNComb_                (cfg.getParameter<int>          ("maxNComb"            )),
   bTagAlgo_                (cfg.getParameter<std::string>  ("bTagAlgo"            )),
   minBTagValueBJet_        (cfg.getParameter<double>       ("minBDiscBJets"       )),
   maxBTagValueNonBJet_     (cfg.getParameter<double>       ("maxBDiscLightJets"   )),
   useBTag_                 (cfg.getParameter<bool>         ("useBTagging"         )),
   mW_                      (cfg.getParameter<double>       ("mW"                  )),
   mTop_                    (cfg.getParameter<double>       ("mTop"                )),
   jetCorrectionLevel_      (cfg.getParameter<std::string>  ("jetCorrectionLevel"  )),
   jes_                     (cfg.getParameter<double>       ("jes"                 )),
   jesB_                    (cfg.getParameter<double>       ("jesB"                )),
 
   // The following five initializers read the config parameters for the
   // ASCII text files which contains the physics object resolutions.
   hitfitDefault_           (cfg.getUntrackedParameter<edm::FileInPath>(std::string("hitfitDefault"),
                             edm::FileInPath(std::string("TopQuarkAnalysis/TopHitFit/data/setting/RunHitFitConfiguration.txt")))),
   hitfitElectronResolution_(cfg.getUntrackedParameter<edm::FileInPath>(std::string("hitfitElectronResolution"),
                             edm::FileInPath(std::string("TopQuarkAnalysis/TopHitFit/data/resolution/tqafElectronResolution.txt")))),
   hitfitMuonResolution_    (cfg.getUntrackedParameter<edm::FileInPath>(std::string("hitfitMuonResolution"),
                             edm::FileInPath(std::string("TopQuarkAnalysis/TopHitFit/data/resolution/tqafMuonResolution.txt")))),
   hitfitUdscJetResolution_ (cfg.getUntrackedParameter<edm::FileInPath>(std::string("hitfitUdscJetResolution"),
                             edm::FileInPath(std::string("TopQuarkAnalysis/TopHitFit/data/resolution/tqafUdscJetResolution.txt")))),
   hitfitBJetResolution_    (cfg.getUntrackedParameter<edm::FileInPath>(std::string("hitfitBJetResolution"),
                             edm::FileInPath(std::string("TopQuarkAnalysis/TopHitFit/data/resolution/tqafBJetResolution.txt")))),
   hitfitMETResolution_     (cfg.getUntrackedParameter<edm::FileInPath>(std::string("hitfitMETResolution"),
                             edm::FileInPath(std::string("TopQuarkAnalysis/TopHitFit/data/resolution/tqafKtResolution.txt")))),
 
   // The following four initializers instantiate the translator between PAT objects
   // and HitFit objects using the ASCII text files which contains the resolutions.
   electronTranslator_(hitfitElectronResolution_.fullPath()),
   muonTranslator_    (hitfitMuonResolution_.fullPath()),
   jetTranslator_     (hitfitUdscJetResolution_.fullPath(), hitfitBJetResolution_.fullPath(), jetCorrectionLevel_, jes_, jesB_),
   metTranslator_     (hitfitMETResolution_.fullPath())
 
 {
   // Create an instance of RunHitFit and initialize it.
   HitFit = new PatHitFit(electronTranslator_,
                          muonTranslator_,
                          jetTranslator_,
                          metTranslator_,
                          hitfitDefault_.fullPath(),
                          mW_,
                          mW_,
                          mTop_);
 
   maxEtaMu_  = 2.4;
   maxEtaEle_ = 2.5;
   maxEtaJet_ = 2.5;
 
   edm::LogVerbatim( "TopHitFit" )
     << "\n"
     << "+++++++++++ TtSemiLepHitFitProducer ++++++++++++ \n"
     << " Due to the eta ranges for which resolutions     \n"
     << " are provided in                                 \n"
     << " TopQuarkAnalysis/TopHitFit/data/resolution/     \n"
     << " so far, the following cuts are currently        \n"
     << " implemented in the TtSemiLepHitFitProducer:     \n"
     << " |eta(muons    )| <= " << maxEtaMu_  <<        " \n"
     << " |eta(electrons)| <= " << maxEtaEle_ <<        " \n"
     << " |eta(jets     )| <= " << maxEtaJet_ <<        " \n"
     << "++++++++++++++++++++++++++++++++++++++++++++++++ \n";
 
   produces< std::vector<pat::Particle> >("PartonsHadP");
   produces< std::vector<pat::Particle> >("PartonsHadQ");
   produces< std::vector<pat::Particle> >("PartonsHadB");
   produces< std::vector<pat::Particle> >("PartonsLepB");
   produces< std::vector<pat::Particle> >("Leptons");
   produces< std::vector<pat::Particle> >("Neutrinos");
 
   produces< std::vector<std::vector<int> > >();
   produces< std::vector<double> >("Chi2");
   produces< std::vector<double> >("Prob");
   produces< std::vector<double> >("MT");
   produces< std::vector<double> >("SigMT");
   produces< std::vector<int> >("Status");
   produces< int >("NumberOfConsideredJets");
 }

template<typename LeptonCollection >

TtSemiLepHitFitProducer< LeptonCollection >::~TtSemiLepHitFitProducer ( )

override

Definition at line 184 of file TtSemiLepHitFitProducer.h.

References TtSemiLepHitFitProducer< LeptonCollection >::HitFit.

 {
   delete HitFit;
 }

Member Function Documentation

template<typename LeptonCollection >

void TtSemiLepHitFitProducer< LeptonCollection >::produce	(	edm::Event &	evt,
		const edm::EventSetup &	setup
	)

overrideprivate

Definition at line 190 of file TtSemiLepHitFitProducer.h.

 {
   std::unique_ptr< std::vector<pat::Particle> > pPartonsHadP( new std::vector<pat::Particle> );
   std::unique_ptr< std::vector<pat::Particle> > pPartonsHadQ( new std::vector<pat::Particle> );
   std::unique_ptr< std::vector<pat::Particle> > pPartonsHadB( new std::vector<pat::Particle> );
   std::unique_ptr< std::vector<pat::Particle> > pPartonsLepB( new std::vector<pat::Particle> );
   std::unique_ptr< std::vector<pat::Particle> > pLeptons    ( new std::vector<pat::Particle> );
   std::unique_ptr< std::vector<pat::Particle> > pNeutrinos  ( new std::vector<pat::Particle> );
 
   std::unique_ptr< std::vector<std::vector<int> > > pCombi ( new std::vector<std::vector<int> > );
   std::unique_ptr< std::vector<double>            > pChi2  ( new std::vector<double> );
   std::unique_ptr< std::vector<double>            > pProb  ( new std::vector<double> );
   std::unique_ptr< std::vector<double>            > pMT    ( new std::vector<double> );
   std::unique_ptr< std::vector<double>            > pSigMT ( new std::vector<double> );
   std::unique_ptr< std::vector<int>               > pStatus( new std::vector<int> );
   std::unique_ptr< int > pJetsConsidered( new int );
 
   edm::Handle<std::vector<pat::Jet> > jets;
   evt.getByToken(jetsToken_, jets);
 
   edm::Handle<std::vector<pat::MET> > mets;
   evt.getByToken(metsToken_, mets);
 
   edm::Handle<LeptonCollection> leps;
   evt.getByToken(lepsToken_, leps);
 
   // -----------------------------------------------------
   // skip events with no appropriate lepton candidate in
   // or empty MET or less jets than partons
   // -----------------------------------------------------
 
   const unsigned int nPartons = 4;
 
   // Clear the internal state
   HitFit->clear();
 
   // Add lepton into HitFit
   bool foundLepton = false;
   if(!leps->empty()) {
     double maxEtaLep = maxEtaMu_;
     if( !dynamic_cast<const reco::Muon*>(&((*leps)[0])) ) // assume electron if it is not a muon
       maxEtaLep = maxEtaEle_;
     for(unsigned iLep=0; iLep<(*leps).size() && !foundLepton; ++iLep) {
       if(std::abs((*leps)[iLep].eta()) <= maxEtaLep) {
     HitFit->AddLepton((*leps)[iLep]);
     foundLepton = true;
       }
     }
   }
 
   // Add jets into HitFit
   unsigned int nJetsFound = 0;
   for(unsigned iJet=0; iJet<(*jets).size() && (int)nJetsFound!=maxNJets_; ++iJet) {
     double jet_eta = (*jets)[iJet].eta();
     if ( (*jets)[iJet].isCaloJet() ) {
       jet_eta = ((reco::CaloJet*) ((*jets)[iJet]).originalObject())->detectorP4().eta();
     }
     if(std::abs(jet_eta) <= maxEtaJet_) {
       HitFit->AddJet((*jets)[iJet]);
       nJetsFound++;
     }
   }
   *pJetsConsidered = nJetsFound;
 
   // Add missing transverse energy into HitFit
   if(!mets->empty())
     HitFit->SetMet((*mets)[0]);
 
   if( !foundLepton || mets->empty() || nJetsFound<nPartons ) {
     // the kinFit getters return empty objects here
     pPartonsHadP->push_back( pat::Particle() );
     pPartonsHadQ->push_back( pat::Particle() );
     pPartonsHadB->push_back( pat::Particle() );
     pPartonsLepB->push_back( pat::Particle() );
     pLeptons    ->push_back( pat::Particle() );
     pNeutrinos  ->push_back( pat::Particle() );
     // indices referring to the jet combination
     std::vector<int> invalidCombi;
     for(unsigned int i = 0; i < nPartons; ++i)
       invalidCombi.push_back( -1 );
     pCombi->push_back( invalidCombi );
     // chi2
     pChi2->push_back( -1. );
     // chi2 probability
     pProb->push_back( -1. );
     // fitted top mass
     pMT->push_back( -1. );
     pSigMT->push_back( -1. );
     // status of the fitter
     pStatus->push_back( -1 );
     // feed out all products
     evt.put(std::move(pCombi));
     evt.put(std::move(pPartonsHadP), "PartonsHadP");
     evt.put(std::move(pPartonsHadQ), "PartonsHadQ");
     evt.put(std::move(pPartonsHadB), "PartonsHadB");
     evt.put(std::move(pPartonsLepB), "PartonsLepB");
     evt.put(std::move(pLeptons    ), "Leptons"    );
     evt.put(std::move(pNeutrinos  ), "Neutrinos"  );
     evt.put(std::move(pChi2       ), "Chi2"       );
     evt.put(std::move(pProb       ), "Prob"       );
     evt.put(std::move(pMT         ), "MT"         );
     evt.put(std::move(pSigMT      ), "SigMT"      );
     evt.put(std::move(pStatus     ), "Status"     );
     evt.put(std::move(pJetsConsidered), "NumberOfConsideredJets");
     return;
   }
 
   std::list<FitResult> FitResultList;
 
   //
   // BEGIN DECLARATION OF VARIABLES FROM KINEMATIC FIT
   //
 
   // In this part are variables from the
   // kinematic fit procedure
 
   // Number of all permutations of the event
   size_t nHitFit    = 0 ;
 
   // Number of jets in the event
   size_t nHitFitJet = 0 ;
 
   // Results of the fit for all jet permutations of the event
   std::vector<hitfit::Fit_Result> hitFitResult;
 
   //
   // R U N   H I T F I T
   //
   // Run the kinematic fit and get how many permutations are possible
   // in the fit
 
   nHitFit         = HitFit->FitAllPermutation();
 
   //
   // BEGIN PART WHICH EXTRACTS INFORMATION FROM HITFIT
   //
 
   // Get the number of jets
   nHitFitJet = HitFit->GetUnfittedEvent()[0].njets();
 
   // Get the fit results for all permutations
   hitFitResult = HitFit->GetFitAllPermutation();
 
   // Loop over all permutations and extract the information
   for (size_t fit = 0 ; fit != nHitFit ; ++fit) {
 
       // Get the event after the fit
       hitfit::Lepjets_Event fittedEvent = hitFitResult[fit].ev();
 
       /*
         Get jet permutation according to TQAF convention
         11 : leptonic b
         12 : hadronic b
         13 : hadronic W
         14 : hadronic W
       */
       std::vector<int> hitCombi(4);
       for (size_t jet = 0 ; jet != nHitFitJet ; ++jet) {
           int jet_type = fittedEvent.jet(jet).type();
 
           switch(jet_type) {
             case 11: hitCombi[TtSemiLepEvtPartons::LepB     ] = jet;
               break;
             case 12: hitCombi[TtSemiLepEvtPartons::HadB     ] = jet;
               break;
             case 13: hitCombi[TtSemiLepEvtPartons::LightQ   ] = jet;
               break;
             case 14: hitCombi[TtSemiLepEvtPartons::LightQBar] = jet;
               break;
           }
       }
 
       // Store the kinematic quantities in the corresponding containers.
 
       hitfit::Lepjets_Event_Jet hadP_ = fittedEvent.jet(hitCombi[TtSemiLepEvtPartons::LightQ   ]);
       hitfit::Lepjets_Event_Jet hadQ_ = fittedEvent.jet(hitCombi[TtSemiLepEvtPartons::LightQBar]);
       hitfit::Lepjets_Event_Jet hadB_ = fittedEvent.jet(hitCombi[TtSemiLepEvtPartons::HadB     ]);
       hitfit::Lepjets_Event_Jet lepB_ = fittedEvent.jet(hitCombi[TtSemiLepEvtPartons::LepB     ]);
       hitfit::Lepjets_Event_Lep lepL_ = fittedEvent.lep(0);
 
       /*
   std::string bTagAlgo_;
   double minBTagValueBJet_;
   double maxBTagValueNonBJet_;
   bool useBTag_;
       */
 
       if (   hitFitResult[fit].chisq() > 0    // only take into account converged fits
           && (!useBTag_ || (   useBTag_       // use btag information if chosen
                             && jets->at(hitCombi[TtSemiLepEvtPartons::LightQ   ]).bDiscriminator(bTagAlgo_) < maxBTagValueNonBJet_
                             && jets->at(hitCombi[TtSemiLepEvtPartons::LightQBar]).bDiscriminator(bTagAlgo_) < maxBTagValueNonBJet_
                             && jets->at(hitCombi[TtSemiLepEvtPartons::HadB     ]).bDiscriminator(bTagAlgo_) > minBTagValueBJet_
                             && jets->at(hitCombi[TtSemiLepEvtPartons::LepB     ]).bDiscriminator(bTagAlgo_) > minBTagValueBJet_
                             )
              )
           ) {
         FitResult result;
         result.Status = 0;
         result.Chi2 = hitFitResult[fit].chisq();
         result.Prob = exp(-1.0*(hitFitResult[fit].chisq())/2.0);
         result.MT   = hitFitResult[fit].mt();
         result.SigMT= hitFitResult[fit].sigmt();
         result.HadB = pat::Particle(reco::LeafCandidate(0,
                                        math::XYZTLorentzVector(hadB_.p().x(), hadB_.p().y(),
                                        hadB_.p().z(), hadB_.p().t()), math::XYZPoint()));
         result.HadP = pat::Particle(reco::LeafCandidate(0,
                                        math::XYZTLorentzVector(hadP_.p().x(), hadP_.p().y(),
                                        hadP_.p().z(), hadP_.p().t()), math::XYZPoint()));
         result.HadQ = pat::Particle(reco::LeafCandidate(0,
                                        math::XYZTLorentzVector(hadQ_.p().x(), hadQ_.p().y(),
                                        hadQ_.p().z(), hadQ_.p().t()), math::XYZPoint()));
         result.LepB = pat::Particle(reco::LeafCandidate(0,
                                        math::XYZTLorentzVector(lepB_.p().x(), lepB_.p().y(),
                                        lepB_.p().z(), lepB_.p().t()), math::XYZPoint()));
         result.LepL = pat::Particle(reco::LeafCandidate(0,
                                        math::XYZTLorentzVector(lepL_.p().x(), lepL_.p().y(),
                                        lepL_.p().z(), lepL_.p().t()), math::XYZPoint()));
         result.LepN = pat::Particle(reco::LeafCandidate(0,
                                        math::XYZTLorentzVector(fittedEvent.met().x(), fittedEvent.met().y(),
                                        fittedEvent.met().z(), fittedEvent.met().t()), math::XYZPoint()));
         result.JetCombi = hitCombi;
 
         FitResultList.push_back(result);
       }
 
   }
 
   // sort results w.r.t. chi2 values
   FitResultList.sort();
 
   // -----------------------------------------------------
   // feed out result
   // starting with the JetComb having the smallest chi2
   // -----------------------------------------------------
 
   if( ((unsigned)FitResultList.size())<1 ) { // in case no fit results were stored in the list (all fits aborted)
     pPartonsHadP->push_back( pat::Particle() );
     pPartonsHadQ->push_back( pat::Particle() );
     pPartonsHadB->push_back( pat::Particle() );
     pPartonsLepB->push_back( pat::Particle() );
     pLeptons    ->push_back( pat::Particle() );
     pNeutrinos  ->push_back( pat::Particle() );
     // indices referring to the jet combination
     std::vector<int> invalidCombi;
     for(unsigned int i = 0; i < nPartons; ++i)
       invalidCombi.push_back( -1 );
     pCombi->push_back( invalidCombi );
     // chi2
     pChi2->push_back( -1. );
     // chi2 probability
     pProb->push_back( -1. );
     // fitted top mass
     pMT->push_back( -1. );
     pSigMT->push_back( -1. );
     // status of the fitter
     pStatus->push_back( -1 );
   }
   else {
     unsigned int iComb = 0;
     for(typename std::list<FitResult>::const_iterator result = FitResultList.begin(); result != FitResultList.end(); ++result) {
       if(maxNComb_ >= 1 && iComb == (unsigned int) maxNComb_) break;
       iComb++;
       // partons
       pPartonsHadP->push_back( result->HadP );
       pPartonsHadQ->push_back( result->HadQ );
       pPartonsHadB->push_back( result->HadB );
       pPartonsLepB->push_back( result->LepB );
       // lepton
       pLeptons->push_back( result->LepL );
       // neutrino
       pNeutrinos->push_back( result->LepN );
       // indices referring to the jet combination
       pCombi->push_back( result->JetCombi );
       // chi2
       pChi2->push_back( result->Chi2 );
       // chi2 probability
       pProb->push_back( result->Prob );
       // fitted top mass
       pMT->push_back( result->MT );
       pSigMT->push_back( result->SigMT );
       // status of the fitter
       pStatus->push_back( result->Status );
     }
   }
   evt.put(std::move(pCombi));
   evt.put(std::move(pPartonsHadP), "PartonsHadP");
   evt.put(std::move(pPartonsHadQ), "PartonsHadQ");
   evt.put(std::move(pPartonsHadB), "PartonsHadB");
   evt.put(std::move(pPartonsLepB), "PartonsLepB");
   evt.put(std::move(pLeptons    ), "Leptons"    );
   evt.put(std::move(pNeutrinos  ), "Neutrinos"  );
   evt.put(std::move(pChi2       ), "Chi2"       );
   evt.put(std::move(pProb       ), "Prob"       );
   evt.put(std::move(pMT         ), "MT"         );
   evt.put(std::move(pSigMT      ), "SigMT"      );
   evt.put(std::move(pStatus     ), "Status"     );
   evt.put(std::move(pJetsConsidered), "NumberOfConsideredJets");
 }