WValidation Class Reference

#include <WValidation.h>

Inheritance diagram for WValidation:

Public Member Functions
void	analyze (const edm::Event &, const edm::EventSetup &) override
void	bookHistograms (DQMStore::IBooker &i, edm::Run const &, edm::EventSetup const &) override
void	dqmBeginRun (const edm::Run &r, const edm::EventSetup &c) override
	WValidation (const edm::ParameterSet &)
	~WValidation () override
Public Member Functions inherited from DQMEDAnalyzer
void	accumulate (edm::Event const &event, edm::EventSetup const &setup) final
virtual void	analyze (edm::Event const &, edm::EventSetup const &)
void	beginLuminosityBlock (edm::LuminosityBlock const &lumi, edm::EventSetup const &setup) final
void	beginRun (edm::Run const &run, edm::EventSetup const &setup) final
virtual void	dqmBeginLuminosityBlock (edm::LuminosityBlock const &, edm::EventSetup const &)
virtual void	dqmBeginRun (edm::Run const &, edm::EventSetup const &)
	DQMEDAnalyzer ()
virtual void	dqmEndLuminosityBlock (edm::LuminosityBlock const &, edm::EventSetup const &)
virtual void	dqmEndRun (edm::Run const &, edm::EventSetup const &)
void	endLuminosityBlock (edm::LuminosityBlock const &, edm::EventSetup const &) final
void	endLuminosityBlockProduce (edm::LuminosityBlock &lumi, edm::EventSetup const &setup) final
void	endRun (edm::Run const &, edm::EventSetup const &) final
void	endRunProduce (edm::Run &run, edm::EventSetup const &setup) final
virtual bool	getCanSaveByLumi ()
Public Member Functions inherited from edm::one::EDProducer< edm::EndRunProducer, edm::one::WatchRuns, edm::EndLuminosityBlockProducer, edm::one::WatchLuminosityBlocks, edm::Accumulator >
	EDProducer ()=default
SerialTaskQueue *	globalLuminosityBlocksQueue () final
SerialTaskQueue *	globalRunsQueue () final
bool	hasAbilityToProduceInBeginLumis () const final
bool	hasAbilityToProduceInBeginRuns () const final
bool	hasAbilityToProduceInEndLumis () const final
bool	hasAbilityToProduceInEndRuns () const final
bool	wantsGlobalLuminosityBlocks () const final
bool	wantsGlobalRuns () const final
Public Member Functions inherited from edm::one::EDProducerBase
	EDProducerBase ()
ModuleDescription const &	moduleDescription () const
bool	wantsStreamLuminosityBlocks () const
bool	wantsStreamRuns () const
	~EDProducerBase () 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)

Private Attributes
int	_flavor
	decay flavor More...
std::string	_name
	decay flavor name More...
MonitorElement *	cos_theta_gamma_lepton
edm::ESHandle< HepPDT::ParticleDataTable >	fPDGTable
	PDT table. More...
MonitorElement *	gamma_energy
edm::InputTag	hepmcCollection_
edm::EDGetTokenT< edm::HepMCProduct >	hepmcCollectionToken_
MonitorElement *	lepeta
MonitorElement *	lepmet_mT
MonitorElement *	lepmet_mTPeak
MonitorElement *	lepmet_pt
MonitorElement *	lepmet_ptLog
MonitorElement *	lepmet_rap
MonitorElement *	leppt
MonitorElement *	met
MonitorElement *	nEvt
MonitorElement *	Wdaughters
WeightManager	wmanager_
MonitorElement *	Wmass
MonitorElement *	WmassPeak
MonitorElement *	Wpt
MonitorElement *	WptLog
MonitorElement *	Wrap

Additional Inherited Members
Public Types inherited from DQMEDAnalyzer
typedef dqm::reco::DQMStore	DQMStore
typedef dqm::reco::MonitorElement	MonitorElement
Public Types inherited from edm::one::EDProducerBase
typedef EDProducerBase	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::one::EDProducerBase
static const std::string &	baseType ()
static void	fillDescriptions (ConfigurationDescriptions &descriptions)
static void	prevalidate (ConfigurationDescriptions &descriptions)
Protected Member Functions inherited from edm::ProducerBase
ProducesCollector	producesCollector ()
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)
Protected Attributes inherited from DQMEDAnalyzer
edm::EDPutTokenT< DQMToken >	lumiToken_
edm::EDPutTokenT< DQMToken >	runToken_

Detailed Description

Definition at line 33 of file WValidation.h.

Constructor & Destructor Documentation

WValidation::WValidation ( const edm::ParameterSet &  iPSet )

explicit

Definition at line 18 of file WValidation.cc.

References hepmcCollection_, and hepmcCollectionToken_.

    : wmanager_(iPSet, consumesCollector()),
      hepmcCollection_(iPSet.getParameter<edm::InputTag>("hepmcCollection")),
      _flavor(iPSet.getParameter<int>("decaysTo")),
      _name(iPSet.getParameter<std::string>("name")) {
  hepmcCollectionToken_ = consumes<HepMCProduct>(hepmcCollection_);
}

WValidation::~WValidation ( )

override

Definition at line 26 of file WValidation.cc.

{}

Member Function Documentation

void WValidation::analyze ( const edm::Event &  iEvent, const edm::EventSetup &  iSetup  )

override

Gathering the HepMCProduct information

Definition at line 89 of file WValidation.cc.

References _flavor, funct::abs(), funct::cos(), cos_theta_gamma_lepton, dqm::impl::MonitorElement::Fill(), HepMCValidationHelper::findFSRPhotons(), gamma_energy, HepMCValidationHelper::genMet(), edm::Event::getByToken(), edm::HepMCProduct::GetEvent(), hepmcCollectionToken_, RazorAnalyzer::lep1, RazorAnalyzer::lep2, lepeta, lepmet_mT, lepmet_mTPeak, lepmet_pt, lepmet_ptLog, leppt, met, nEvt, HiggsValidation_cfi::pdg_id, edm::es::products(), HepMCValidationHelper::sortByPt(), OrderedSet::t, Wdaughters, WeightManager::weight(), mps_merge::weight, wmanager_, Wmass, WmassPeak, Wpt, WptLog, Wrap, x, y, and z.

                                                                             {
  // we *DO NOT* rely on a Z entry in the particle listings!

  edm::Handle<HepMCProduct> evt;
  iEvent.getByToken(hepmcCollectionToken_, evt);

  //Get EVENT
  const HepMC::GenEvent* myGenEvent = evt->GetEvent();

  double weight = wmanager_.weight(iEvent);

  nEvt->Fill(0.5, weight);

  std::vector<const HepMC::GenParticle*> allleptons;
  std::vector<const HepMC::GenParticle*> allneutrinos;

  //requires status 1 for leptons and neutrinos (except tau)
  int requiredstatus = (std::abs(_flavor) == 11 || std::abs(_flavor) == 13) ? 1 : 3;

  bool vetotau = true;
  // alternatively (std::abs(_flavor) == 11 || std::abs(_flavor) == 12 || std::abs(_flavor) ==13 || std::abs(_flavor) ==14 || std::abs(_flavor) ==16) ? true : false;

  for (HepMC::GenEvent::particle_const_iterator iter = myGenEvent->particles_begin();
       iter != myGenEvent->particles_end();
       ++iter) {
    if (vetotau) {
      if ((*iter)->status() == 3 && std::abs((*iter)->pdg_id()) == 15)
        return;
    }
    if ((*iter)->status() == requiredstatus) {
      //@todo: improve this selection
      if ((*iter)->pdg_id() == _flavor)
        allleptons.push_back(*iter);
      else if (std::abs((*iter)->pdg_id()) == std::abs(_flavor) + 1)
        allneutrinos.push_back(*iter);
    }
  }

  //nothing to do if we don't have 2 particles
  if (allleptons.empty() || allneutrinos.empty())
    return;

  //sort them in pt
  std::sort(allleptons.begin(), allleptons.end(), HepMCValidationHelper::sortByPt);
  std::sort(allneutrinos.begin(), allneutrinos.end(), HepMCValidationHelper::sortByPt);

  //get the first lepton and the first neutrino, and check that one is particle one is antiparticle (product of pdgids < 0)
  std::vector<const HepMC::GenParticle*> products;
  if (allleptons.front()->pdg_id() * allneutrinos.front()->pdg_id() > 0)
    return;

  //require at least 20 GeV on the lepton
  if (allleptons.front()->momentum().perp() < 20. || allneutrinos.front()->momentum().perp() < 20.)
    return;

  //find possible qed fsr photons
  std::vector<const HepMC::GenParticle*> selectedLepton;
  selectedLepton.push_back(allleptons.front());
  std::vector<const HepMC::GenParticle*> fsrphotons;
  HepMCValidationHelper::findFSRPhotons(selectedLepton, myGenEvent, 0.1, fsrphotons);

  Wdaughters->Fill(allleptons.front()->pdg_id(), weight);
  Wdaughters->Fill(allneutrinos.front()->pdg_id(), weight);

  //assemble FourMomenta
  TLorentzVector lep1(allleptons[0]->momentum().x(),
                      allleptons[0]->momentum().y(),
                      allleptons[0]->momentum().z(),
                      allleptons[0]->momentum().t());
  TLorentzVector lep2(allneutrinos[0]->momentum().x(),
                      allneutrinos[0]->momentum().y(),
                      allneutrinos[0]->momentum().z(),
                      allneutrinos[0]->momentum().t());
  TLorentzVector dilepton_mom = lep1 + lep2;
  TLorentzVector dilepton_andphoton_mom = dilepton_mom;
  std::vector<TLorentzVector> gammasMomenta;
  for (unsigned int ipho = 0; ipho < fsrphotons.size(); ++ipho) {
    TLorentzVector phomom(fsrphotons[ipho]->momentum().x(),
                          fsrphotons[ipho]->momentum().y(),
                          fsrphotons[ipho]->momentum().z(),
                          fsrphotons[ipho]->momentum().t());
    dilepton_andphoton_mom += phomom;
    Wdaughters->Fill(fsrphotons[ipho]->pdg_id(), weight);
    gammasMomenta.push_back(phomom);
  }
  //Fill "true" W histograms
  Wmass->Fill(dilepton_andphoton_mom.M(), weight);
  WmassPeak->Fill(dilepton_andphoton_mom.M(), weight);
  Wpt->Fill(dilepton_andphoton_mom.Pt(), weight);
  WptLog->Fill(log10(dilepton_andphoton_mom.Pt()), weight);
  Wrap->Fill(dilepton_andphoton_mom.Rapidity(), weight);

  TLorentzVector met_mom = HepMCValidationHelper::genMet(myGenEvent, -3., 3.);
  TLorentzVector lep1T(lep1.Px(), lep1.Py(), 0., lep1.Et());
  TLorentzVector lepmet_mom = lep1T + met_mom;
  //Fill lepmet histograms
  lepmet_mT->Fill(lepmet_mom.M(), weight);
  lepmet_mTPeak->Fill(lepmet_mom.M(), weight);
  lepmet_pt->Fill(lepmet_mom.Pt(), weight);
  lepmet_ptLog->Fill(log10(lepmet_mom.Pt()), weight);

  //Fill lepton histograms
  leppt->Fill(lep1.Pt(), weight);
  lepeta->Fill(lep1.Eta(), weight);
  met->Fill(met_mom.Pt(), weight);

  //boost everything in the W frame
  TVector3 boost = dilepton_andphoton_mom.BoostVector();
  boost *= -1.;
  lep1.Boost(boost);
  lep2.Boost(boost);
  for (unsigned int ipho = 0; ipho < gammasMomenta.size(); ++ipho) {
    gammasMomenta[ipho].Boost(boost);
  }
  std::sort(gammasMomenta.begin(), gammasMomenta.end(), HepMCValidationHelper::GreaterByE<TLorentzVector>);

  //fill gamma histograms
  if (!gammasMomenta.empty() && dilepton_andphoton_mom.M() > 50.) {
    gamma_energy->Fill(gammasMomenta.front().E(), weight);
    double dphi = lep1.DeltaR(gammasMomenta.front());
    cos_theta_gamma_lepton->Fill(cos(dphi), weight);
  }

}  //analyze

void WValidation::bookHistograms ( DQMStore::IBooker &  i, edm::Run const &  , edm::EventSetup const &    )

overridevirtual

Setting the DQM top directories

Implements DQMEDAnalyzer.

Definition at line 28 of file WValidation.cc.

References _name, DQMHelper::book1dHisto(), cos_theta_gamma_lepton, ALCARECODTCalibSynchCosmicsDQM_cff::folderName, gamma_energy, lepeta, lepmet_mT, lepmet_mTPeak, lepmet_pt, lepmet_ptLog, leppt, met, nEvt, dqm::dqmstoreimpl::DQMStore::IBooker::setCurrentFolder(), AlCaHLTBitMon_QueryRunRegistry::string, Wdaughters, Wmass, WmassPeak, Wpt, WptLog, and Wrap.

                                                                                        {
  std::string folderName = "Generator/W";
  folderName += _name;
  DQMHelper dqm(&i);
  i.setCurrentFolder(folderName);

  // Number of analyzed events
  nEvt = dqm.book1dHisto("nEvt", "n analyzed Events", 1, 0., 1., "bin", "Number of Events");

  //Kinematics
  Wmass = dqm.book1dHisto("Wmass", "inv. Mass W", 70, 0, 140, "M_{T}^{W} (GeV)", "Number of Events");
  WmassPeak = dqm.book1dHisto("WmassPeak", "inv. Mass W", 80, 80, 100, "M_{T}^{W} (GeV)", "Number of Events");
  Wpt = dqm.book1dHisto("Wpt", "W pt", 100, 0, 200, "P_{T}^{W} (GeV)", "Number of Events");
  WptLog = dqm.book1dHisto("WptLog", "log(W pt)", 100, 0., 5., "Log_{10}(P_{T}^{W}) (GeV)", "Number of Events");
  Wrap = dqm.book1dHisto("Wrap", "W y", 100, -5, 5, "Y^{W}", "Number of Events");
  Wdaughters = dqm.book1dHisto("Wdaughters", "W daughters", 60, -30, 30, "W daughters (PDG ID)", "Number of Events");

  lepmet_mT = dqm.book1dHisto("lepmet_mT",
                              "lepton-met transverse mass",
                              70,
                              0,
                              140,
                              "M_{T}^{Lepton_{T}+E_{T}^{Miss}} (GeV)",
                              "Number of Events");
  lepmet_mTPeak = dqm.book1dHisto("lepmet_mTPeak",
                                  "lepton-met transverse mass",
                                  80,
                                  80,
                                  100,
                                  "M_{T}^{Lepton_{T}+E_{T}^{Miss}} (GeV)",
                                  "Number of Events");
  lepmet_pt = dqm.book1dHisto(
      "lepmet_pt", "lepton-met", 100, 0, 200, "P_{T}^{Lepton_{T}+E_{T}^{Miss}} (GeV)", "Number of Events");
  lepmet_ptLog = dqm.book1dHisto("lepmet_ptLog",
                                 "log(lepton-met pt)",
                                 100,
                                 0.,
                                 5.,
                                 "log_{10}(P_{T}^{Lepton_{T}+E_{T}^{Miss}}) (Log_{10}(GeV))",
                                 "Number of Events");

  gamma_energy = dqm.book1dHisto(
      "gamma_energy", "photon energy in W rest frame", 200, 0., 100., "E_{#gamma}^{W rest-frame}", "Number of Events");
  cos_theta_gamma_lepton = dqm.book1dHisto("cos_theta_gamma_lepton",
                                           "cos_theta_gamma_lepton in W rest frame",
                                           200,
                                           -1,
                                           1,
                                           "cos(#theta_{#gamma-lepton}^{W rest-frame})",
                                           "Number of Events");

  leppt = dqm.book1dHisto("leadpt", "lepton pt", 200, 0., 200., "P_{t}^{Lead-Lepton} (GeV)", "Number of Events");
  met = dqm.book1dHisto("met", "met", 200, 0., 200., "E_{T}^{Miss} (GeV)", "Number of Events");
  lepeta = dqm.book1dHisto("leadeta", "leading lepton eta", 100, -5., 5., "#eta^{Lead-Lepton}", "Number of Events");

  return;
}

void WValidation::dqmBeginRun ( const edm::Run &  r, const edm::EventSetup &  c  )

override

Definition at line 87 of file WValidation.cc.

References fPDGTable, and edm::EventSetup::getData().

{ c.getData(fPDGTable); }

Member Data Documentation

int WValidation::_flavor

private

decay flavor

Definition at line 55 of file WValidation.h.

Referenced by analyze().

std::string WValidation::_name

private

decay flavor name

Definition at line 57 of file WValidation.h.

Referenced by plotting.Subtract::__str__(), plotting.Transform::__str__(), plotting.FakeDuplicate::__str__(), plotting.CutEfficiency::__str__(), plotting.AggregateBins::__str__(), plotting.AggregateHistos::__str__(), plotting.ROC::__str__(), trackingPlots.TimePerEventPlot::__str__(), trackingPlots.TimePerTrackPlot::__str__(), trackingPlots.TimePerEventPlot::_create(), plotting.PlotGroup::_drawSeparate(), plotting.PlotGroup::_save(), bookHistograms(), plotting.Subtract::create(), plotting.Transform::create(), plotting.FakeDuplicate::create(), plotting.CutEfficiency::create(), plotting.AggregateBins::create(), plotting.AggregateHistos::create(), trackingPlots.TimePerTrackPlot::create(), plotting.Plot::create(), plotting.PlotGroup::draw(), plotting.Plot::getName(), plotting.PlotGroup::getName(), plotting.PlotterFolder::getName(), plotting.PlotterItem::getName(), plotting.PlotterFolder::getSelectionNameIterator(), validation.SimpleSample::name(), trackingPlots.Iteration::name(), plotting.PlotterItem::readDirs(), and plotting.PlotGroup::remove().

MonitorElement * WValidation::cos_theta_gamma_lepton

private

Definition at line 52 of file WValidation.h.

Referenced by analyze(), and bookHistograms().

edm::ESHandle<HepPDT::ParticleDataTable> WValidation::fPDGTable

private

PDT table.

Definition at line 46 of file WValidation.h.

Referenced by dqmBeginRun().

MonitorElement* WValidation::gamma_energy

private

Definition at line 52 of file WValidation.h.

Referenced by analyze(), and bookHistograms().

edm::InputTag WValidation::hepmcCollection_

private

Definition at line 43 of file WValidation.h.

Referenced by WValidation().

edm::EDGetTokenT<edm::HepMCProduct> WValidation::hepmcCollectionToken_

private

Definition at line 59 of file WValidation.h.

Referenced by analyze(), and WValidation().

MonitorElement * WValidation::lepeta

private

Definition at line 51 of file WValidation.h.

Referenced by analyze(), and bookHistograms().

MonitorElement* WValidation::lepmet_mT

private

Definition at line 50 of file WValidation.h.

Referenced by analyze(), and bookHistograms().

MonitorElement * WValidation::lepmet_mTPeak

private

Definition at line 50 of file WValidation.h.

Referenced by analyze(), and bookHistograms().

MonitorElement * WValidation::lepmet_pt

private

Definition at line 50 of file WValidation.h.

Referenced by analyze(), and bookHistograms().

MonitorElement * WValidation::lepmet_ptLog

private

Definition at line 50 of file WValidation.h.

Referenced by analyze(), and bookHistograms().

MonitorElement * WValidation::lepmet_rap

private

Definition at line 50 of file WValidation.h.

MonitorElement* WValidation::leppt

private

Definition at line 51 of file WValidation.h.

Referenced by analyze(), and bookHistograms().

MonitorElement * WValidation::met

private

Definition at line 51 of file WValidation.h.

Referenced by analyze(), and bookHistograms().

MonitorElement* WValidation::nEvt

private

Definition at line 48 of file WValidation.h.

Referenced by analyze(), and bookHistograms().

MonitorElement * WValidation::Wdaughters

private

Definition at line 49 of file WValidation.h.

Referenced by analyze(), and bookHistograms().

WeightManager WValidation::wmanager_

private

Definition at line 42 of file WValidation.h.

Referenced by analyze().

MonitorElement* WValidation::Wmass

private

Definition at line 49 of file WValidation.h.

Referenced by analyze(), and bookHistograms().

MonitorElement * WValidation::WmassPeak

private

Definition at line 49 of file WValidation.h.

Referenced by analyze(), and bookHistograms().

MonitorElement * WValidation::Wpt

private

Definition at line 49 of file WValidation.h.

Referenced by analyze(), and bookHistograms().

MonitorElement * WValidation::WptLog

private

Definition at line 49 of file WValidation.h.

Referenced by analyze(), and bookHistograms().

MonitorElement * WValidation::Wrap

private

Definition at line 49 of file WValidation.h.

Referenced by analyze(), and bookHistograms().