xAODTruthParticleSlimmerTau Class Reference

Algorithm to skim the xAOD truth particle container for tau filter. More...

#include <xAODTruthParticleSlimmerTau.h>

Inheritance diagram for xAODTruthParticleSlimmerTau:

Collaboration diagram for xAODTruthParticleSlimmerTau:

Public Member Functions
	xAODTruthParticleSlimmerTau (const std::string &name, ISvcLocator *svcLoc)
	Regular algorithm constructor.
virtual StatusCode	initialize ()
	Function initialising the algorithm.
virtual StatusCode	execute ()
	Function executing the algorithm.
CLHEP::HepLorentzVector	sumDaughterNeutrinos (const xAOD::TruthParticle *tau)
virtual StatusCode	sysInitialize () override
	Override sysInitialize.
virtual const DataObjIDColl &	extraOutputDeps () const override
	Return the list of extra output dependencies.
ServiceHandle< StoreGateSvc > &	evtStore ()
	The standard StoreGateSvc (event store) Returns (kind of) a pointer to the StoreGateSvc.
const ServiceHandle< StoreGateSvc > &	detStore () const
	The standard StoreGateSvc/DetectorStore Returns (kind of) a pointer to the StoreGateSvc.
virtual StatusCode	sysStart () override
	Handle START transition.
virtual std::vector< Gaudi::DataHandle * >	inputHandles () const override
	Return this algorithm's input handles.
virtual std::vector< Gaudi::DataHandle * >	outputHandles () const override
	Return this algorithm's output handles.
Gaudi::Details::PropertyBase &	declareProperty (Gaudi::Property< T, V, H > &t)
void	updateVHKA (Gaudi::Details::PropertyBase &)
MsgStream &	msg () const
bool	msgLvl (const MSG::Level lvl) const

Protected Member Functions
void	renounceArray (SG::VarHandleKeyArray &handlesArray)
	remove all handles from I/O resolution
std::enable_if_t< std::is_void_v< std::result_of_t< decltype(&T::renounce)(T)> > &&!std::is_base_of_v< SG::VarHandleKeyArray, T > &&std::is_base_of_v< Gaudi::DataHandle, T >, void >	renounce (T &h)
void	extraDeps_update_handler (Gaudi::Details::PropertyBase &ExtraDeps)
	Add StoreName to extra input/output deps as needed.

Private Types
typedef ServiceHandle< StoreGateSvc >	StoreGateSvc_t

Private Member Functions
Gaudi::Details::PropertyBase &	declareGaudiProperty (Gaudi::Property< T, V, H > &hndl, const SG::VarHandleKeyType &)
	specialization for handling Gaudi::Property<SG::VarHandleKey>

Private Attributes
SG::ReadHandleKey< xAOD::TruthParticleContainer >	m_xaodTruthParticleContainerName {this,"xAODTruthParticleContainerName","TruthParticles","Name of Truth Particle container"}
SG::WriteHandleKey< xAOD::TruthParticleContainer >	m_xaodTruthTauParticleContainerName {this, "xAODTruthTauParticleContainerName","TruthTaus","Name of Truth Taus contatiner from the slimmer"}
	The key for the output xAOD truth containers.
DoubleProperty	m_tau_pt_selection {this, "tau_pt_selection", 0.001 * Gaudi::Units::GeV}
	Selection values for keeping taus and leptons.
DoubleProperty	m_abseta_selection {this, "abseta_selection", 10.}
BooleanProperty	m_forceRerun {this, "ForceRerun", false}
	a flag to force rerunning (useful for rerunning on ESDs)
PublicToolHandle< IMCTruthClassifier >	m_classifier {this, "MCTruthClassifier", "MCTruthClassifier/MCTruthClassifier"}
DataObjIDColl	m_extendedExtraObjects
StoreGateSvc_t	m_evtStore
	Pointer to StoreGate (event store by default)
StoreGateSvc_t	m_detStore
	Pointer to StoreGate (detector store by default)
std::vector< SG::VarHandleKeyArray * >	m_vhka
bool	m_varHandleArraysDeclared

Detailed Description

Algorithm to skim the xAOD truth particle container for tau filter.

This algorithm is used to copy and skim the particles from the xAOD TruthParticles container, keeping just relevant taus from the event.
The design of this class heavily mirrors the DerivationFramework::TruthCollectionMaker.

Author

Jeff Dandoy Jeff..nosp@m.Dand.nosp@m.oy@ce.nosp@m.rn.c.nosp@m.h

Definition at line 28 of file xAODTruthParticleSlimmerTau.h.

Member Typedef Documentation

StoreGateSvc_t

typedef ServiceHandle<StoreGateSvc> AthCommonDataStore< AthCommonMsg< Algorithm > >::StoreGateSvc_t

privateinherited

Definition at line 388 of file AthCommonDataStore.h.

Constructor & Destructor Documentation

xAODTruthParticleSlimmerTau()

xAODTruthParticleSlimmerTau::xAODTruthParticleSlimmerTau	(	const std::string &	name,
		ISvcLocator *	svcLoc )

Regular algorithm constructor.

Definition at line 27 of file xAODTruthParticleSlimmerTau.cxx.

    : AthAlgorithm(name, svcLoc)
{
}

Member Function Documentation

declareGaudiProperty()

Gaudi::Details::PropertyBase & AthCommonDataStore< AthCommonMsg< Algorithm > >::declareGaudiProperty ( Gaudi::Property< T, V, H > & hndl, const SG::VarHandleKeyType &  )

inlineprivateinherited

specialization for handling Gaudi::Property<SG::VarHandleKey>

Definition at line 156 of file AthCommonDataStore.h.

  {
    return *AthCommonDataStore<PBASE>::declareProperty(hndl.name(),
                                                       hndl.value(), 
                                                       hndl.documentation());
 
  }

declareProperty()

Gaudi::Details::PropertyBase & AthCommonDataStore< AthCommonMsg< Algorithm > >::declareProperty ( Gaudi::Property< T, V, H > & t )

inlineinherited

Definition at line 145 of file AthCommonDataStore.h.

                                                                     {
    typedef typename SG::HandleClassifier<T>::type htype;
    return AthCommonDataStore<PBASE>::declareGaudiProperty(t, htype());
  }

detStore()

const ServiceHandle< StoreGateSvc > & AthCommonDataStore< AthCommonMsg< Algorithm > >::detStore ( ) const

inlineinherited

The standard StoreGateSvc/DetectorStore Returns (kind of) a pointer to the StoreGateSvc.

Definition at line 95 of file AthCommonDataStore.h.

{ return m_detStore; }

evtStore()

ServiceHandle< StoreGateSvc > & AthCommonDataStore< AthCommonMsg< Algorithm > >::evtStore ( )

inlineinherited

The standard StoreGateSvc (event store) Returns (kind of) a pointer to the StoreGateSvc.

Definition at line 85 of file AthCommonDataStore.h.

{ return m_evtStore; }

execute()

StatusCode xAODTruthParticleSlimmerTau::execute ( )

virtual

Function executing the algorithm.

Definition at line 61 of file xAODTruthParticleSlimmerTau.cxx.

{
 
  CLHEP::HepLorentzVector nutau;
 
  // If the containers already exists then assume that nothing needs to be done
  if (evtStore()->contains<xAOD::TruthParticleContainer>(m_xaodTruthTauParticleContainerName.key()))
  {
    ATH_MSG_WARNING("xAOD Tau Truth Particles are already available in the event");
    return StatusCode::SUCCESS;
  }
 
  // Create new output container
  SG::WriteHandle<xAOD::TruthParticleContainer> xTruthTauParticleContainer(m_xaodTruthTauParticleContainerName);
  ATH_CHECK(xTruthTauParticleContainer.record(std::make_unique<xAOD::TruthParticleContainer>(), std::make_unique<xAOD::TruthParticleAuxContainer>()));
  ATH_MSG_INFO("Recorded TruthTauParticleContainer with key: " << m_xaodTruthTauParticleContainerName.key());
 
  // Retrieve full TruthParticle container
  SG::ReadHandle<xAOD::TruthParticleContainer> xTruthParticleContainer{m_xaodTruthParticleContainerName};
  if ( !xTruthParticleContainer.isValid() )
    {
      ATH_MSG_ERROR("No TruthParticle collection with name " << m_xaodTruthParticleContainerName.key() << " found in StoreGate!");
      return StatusCode::FAILURE;
    }
 
  // Set up decorators
 
  const static SG::AuxElement::Decorator<unsigned int> originDecorator("classifierParticleOrigin");
  const static SG::AuxElement::Decorator<unsigned int> typeDecorator("classifierParticleType");
  const static SG::AuxElement::Decorator<unsigned int> outcomeDecorator("classifierParticleOutCome");
  const static SG::AuxElement::Decorator<unsigned int> classificationDecorator("Classification");
  const static SG::AuxElement::Decorator<int> parenthadronPIDDecorator("parentHadronID");
 
  // sum of neutrinos 4-vector in tau decay products
  const static SG::AuxElement::Decorator<CLHEP::HepLorentzVector> nuDecorator("nuVector");
  const static SG::AuxElement::Decorator<int> tauTypeDecorator("tauType");
 
  // Loop over full TruthParticle container
  
  std::vector<int> uniqueID_list;  
  int zero_uniqueID=0;
  int dup_uniqueID = 0;
 
  unsigned int nParticles = xTruthParticleContainer->size();
 
  for (unsigned int iPart = 0; iPart < nParticles; ++iPart)
  {
    ElementLink<xAOD::TruthParticleContainer> eltp(*xTruthParticleContainer, iPart);
    const xAOD::TruthParticle *theParticle = (*xTruthParticleContainer)[iPart];
             
    int my_uniqueID = HepMC::uniqueID(theParticle);
    if ( my_uniqueID == HepMC::UNDEFINED_ID ) {
       zero_uniqueID++;
       continue;
       }
     bool found = false;
     if (uniqueID_list.size() > 0){
        found = (std::find(uniqueID_list.begin(), uniqueID_list.end(), my_uniqueID) != uniqueID_list.end());
        if(found) {
           dup_uniqueID++;
           continue;}
     }
     uniqueID_list.push_back(my_uniqueID);
 
    float this_abseta = theParticle->abseta();
    float this_pt = theParticle->pt();
 
 
    //Save Taus above 0.001 GeV, & with any eta (may be changed on JOs level eg. to dectector acceptance of eta 4.5)
    // see GeneratorFilters/share/common/xAODTauFilter_Common.py
    // we want to avoid status 3 taus
    if (MC::isPhysical(theParticle) && MC::isTau(theParticle) && this_pt >= m_tau_pt_selection && this_abseta < m_abseta_selection)
    {
      xAOD::TruthParticle *xTruthParticle = new xAOD::TruthParticle();
 
      xTruthTauParticleContainer->push_back(xTruthParticle);
      // Fill with numerical content
      *xTruthParticle=*theParticle;
      const xAOD::TruthParticle *tau = theParticle;
      nutau = sumDaughterNeutrinos(tau);
 
      nuDecorator(*xTruthParticle) = nutau;
 
      int tauType = 0;
      for (size_t n = 0; n < tau->nChildren(); ++n)
      {
        if (tau->child(n)->absPdgId() == MC::NU_E)
          tauType = 1; //Tau decays into an electron
        else if (tau->child(n)->absPdgId() == MC::NU_MU)
          tauType = 2; //Tau decays into a muon
        else if (MC::isTau(tau->child(n)))
          tauType = 11; //Tau radiates a particle and decays into another tau
      }
      tauTypeDecorator(*xTruthParticle) = tauType;
 
unsigned int particleOutCome;
unsigned int result;
unsigned int particleType;
unsigned int particleOrigin;
int hadron_pdg;
Common::classify(m_classifier,theParticle,particleOutCome,result,hadron_pdg,particleType,particleOrigin );
      typeDecorator(*xTruthParticle) = particleType;
      originDecorator(*xTruthParticle) = particleOrigin;
      outcomeDecorator(*xTruthParticle) = particleOutCome;
 
      classificationDecorator(*xTruthParticle) = result;
      parenthadronPIDDecorator(*xTruthParticle) = hadron_pdg;
    }
 
  } //end of loop over particles
  if(zero_uniqueID!=0 || dup_uniqueID != 0) ATH_MSG_INFO("Found " << zero_uniqueID << " uniqueID=0 particles and " << dup_uniqueID << " duplicated");
  return StatusCode::SUCCESS;
}

extraDeps_update_handler()

void AthCommonDataStore< AthCommonMsg< Algorithm > >::extraDeps_update_handler ( Gaudi::Details::PropertyBase & ExtraDeps )

protectedinherited

Add StoreName to extra input/output deps as needed.

use the logic of the VarHandleKey to parse the DataObjID keys supplied via the ExtraInputs and ExtraOuputs Properties to add the StoreName if it's not explicitly given

extraOutputDeps()

const DataObjIDColl & AthAlgorithm::extraOutputDeps ( ) const

overridevirtualinherited

Return the list of extra output dependencies.

This list is extended to include symlinks implied by inheritance relations.

Definition at line 50 of file AthAlgorithm.cxx.

{
  // If we didn't find any symlinks to add, just return the collection
  // from the base class.  Otherwise, return the extended collection.
  if (!m_extendedExtraObjects.empty()) {
    return m_extendedExtraObjects;
  }
  return Algorithm::extraOutputDeps();
}

initialize()

StatusCode xAODTruthParticleSlimmerTau::initialize ( )

virtual

Function initialising the algorithm.

Definition at line 32 of file xAODTruthParticleSlimmerTau.cxx.

{
  ATH_CHECK(m_classifier.retrieve());
  ATH_CHECK(m_xaodTruthParticleContainerName.initialize());
  ATH_MSG_INFO("xAOD input TruthParticleContainer name = " << m_xaodTruthParticleContainerName.key());
  ATH_CHECK(m_xaodTruthTauParticleContainerName.initialize());
  ATH_MSG_INFO("xAOD output TruthTauParticleContainer name = " << m_xaodTruthTauParticleContainerName.key());
  return StatusCode::SUCCESS;
}

inputHandles()

virtual std::vector< Gaudi::DataHandle * > AthCommonDataStore< AthCommonMsg< Algorithm > >::inputHandles ( ) const

overridevirtualinherited

Return this algorithm's input handles.

We override this to include handle instances from key arrays if they have not yet been declared. See comments on updateVHKA.

msg()

MsgStream & AthCommonMsg< Algorithm >::msg ( ) const

inlineinherited

Definition at line 24 of file AthCommonMsg.h.

                                {
    return this->msgStream();
  }

msgLvl()

bool AthCommonMsg< Algorithm >::msgLvl ( const MSG::Level lvl ) const

inlineinherited

Definition at line 30 of file AthCommonMsg.h.

                                               {
    return this->msgLevel(lvl);
  }

outputHandles()

virtual std::vector< Gaudi::DataHandle * > AthCommonDataStore< AthCommonMsg< Algorithm > >::outputHandles ( ) const

overridevirtualinherited

Return this algorithm's output handles.

We override this to include handle instances from key arrays if they have not yet been declared. See comments on updateVHKA.

renounce()

std::enable_if_t< std::is_void_v< std::result_of_t< decltype(&T::renounce)(T)> > &&!std::is_base_of_v< SG::VarHandleKeyArray, T > &&std::is_base_of_v< Gaudi::DataHandle, T >, void > AthCommonDataStore< AthCommonMsg< Algorithm > >::renounce ( T & h )

inlineprotectedinherited

Definition at line 380 of file AthCommonDataStore.h.

  {
    h.renounce();
    PBASE::renounce (h);
  }

renounceArray()

void AthCommonDataStore< AthCommonMsg< Algorithm > >::renounceArray ( SG::VarHandleKeyArray & handlesArray )

inlineprotectedinherited

remove all handles from I/O resolution

Definition at line 364 of file AthCommonDataStore.h.

                                                          {
    handlesArray.renounce();
  }

sumDaughterNeutrinos()

CLHEP::HepLorentzVector xAODTruthParticleSlimmerTau::sumDaughterNeutrinos

(

const xAOD::TruthParticle *

tau

)

Definition at line 42 of file xAODTruthParticleSlimmerTau.cxx.

{
  CLHEP::HepLorentzVector nu(0, 0, 0, 0);
  if (MC::isSMNeutrino(part) && MC::isPhysical(part))
  {
    nu.setPx(part->px());
    nu.setPy(part->py());
    nu.setPz(part->pz());
    nu.setE(part->e());
  }
  if (!part->hasDecayVtx())
    return nu;
 
  for (size_t n = 0; n < part->nChildren(); ++n)
    nu += sumDaughterNeutrinos(part->child(n));
 
  return nu;
}

sysInitialize()

StatusCode AthAlgorithm::sysInitialize ( )

overridevirtualinherited

Override sysInitialize.

Override sysInitialize from the base class.

Loop through all output handles, and if they're WriteCondHandles, automatically register them and this Algorithm with the CondSvc

Scan through all outputHandles, and if they're WriteCondHandles, register them with the CondSvc

Reimplemented from AthCommonDataStore< AthCommonMsg< Algorithm > >.

Reimplemented in AthAnalysisAlgorithm, AthFilterAlgorithm, AthHistogramAlgorithm, and PyAthena::Alg.

Definition at line 66 of file AthAlgorithm.cxx.

                                       {
  StatusCode sc=AthCommonDataStore<AthCommonMsg<Algorithm>>::sysInitialize();
 
  if (sc.isFailure()) {
    return sc;
  }
  ServiceHandle<ICondSvc> cs("CondSvc",name());
  for (auto h : outputHandles()) {
    if (h->isCondition() && h->mode() == Gaudi::DataHandle::Writer) {
      // do this inside the loop so we don't create the CondSvc until needed
      if ( cs.retrieve().isFailure() ) {
        ATH_MSG_WARNING("no CondSvc found: won't autoreg WriteCondHandles");
        return StatusCode::SUCCESS;
      }
      if (cs->regHandle(this,*h).isFailure()) {
        sc = StatusCode::FAILURE;
        ATH_MSG_ERROR("unable to register WriteCondHandle " << h->fullKey()
                      << " with CondSvc");
      }
    }
  }
  return sc;
}

sysStart()

virtual StatusCode AthCommonDataStore< AthCommonMsg< Algorithm > >::sysStart ( )

overridevirtualinherited

Handle START transition.

We override this in order to make sure that conditions handle keys can cache a pointer to the conditions container.

updateVHKA()

void AthCommonDataStore< AthCommonMsg< Algorithm > >::updateVHKA ( Gaudi::Details::PropertyBase & )

inlineinherited

Definition at line 308 of file AthCommonDataStore.h.

                                               {
    // debug() << "updateVHKA for property " << p.name() << " " << p.toString() 
    //         << "  size: " << m_vhka.size() << endmsg;
    for (auto &a : m_vhka) {
      std::vector<SG::VarHandleKey*> keys = a->keys();
      for (auto k : keys) {
        k->setOwner(this);
      }
    }
  }

Member Data Documentation

m_abseta_selection

DoubleProperty xAODTruthParticleSlimmerTau::m_abseta_selection {this, "abseta_selection", 10.}

private

Definition at line 50 of file xAODTruthParticleSlimmerTau.h.

{this, "abseta_selection", 10.};

m_classifier

PublicToolHandle<IMCTruthClassifier> xAODTruthParticleSlimmerTau::m_classifier {this, "MCTruthClassifier", "MCTruthClassifier/MCTruthClassifier"}

private

Definition at line 55 of file xAODTruthParticleSlimmerTau.h.

{this, "MCTruthClassifier", "MCTruthClassifier/MCTruthClassifier"};

m_detStore

StoreGateSvc_t AthCommonDataStore< AthCommonMsg< Algorithm > >::m_detStore

privateinherited

Pointer to StoreGate (detector store by default)

Definition at line 393 of file AthCommonDataStore.h.

m_evtStore

StoreGateSvc_t AthCommonDataStore< AthCommonMsg< Algorithm > >::m_evtStore

privateinherited

Pointer to StoreGate (event store by default)

Definition at line 390 of file AthCommonDataStore.h.

m_extendedExtraObjects

DataObjIDColl AthAlgorithm::m_extendedExtraObjects

privateinherited

Definition at line 79 of file AthAlgorithm.h.

m_forceRerun

BooleanProperty xAODTruthParticleSlimmerTau::m_forceRerun {this, "ForceRerun", false}

private

a flag to force rerunning (useful for rerunning on ESDs)

Definition at line 53 of file xAODTruthParticleSlimmerTau.h.

{this, "ForceRerun", false};

m_tau_pt_selection

DoubleProperty xAODTruthParticleSlimmerTau::m_tau_pt_selection {this, "tau_pt_selection", 0.001 * Gaudi::Units::GeV}

private

Selection values for keeping taus and leptons.

Definition at line 49 of file xAODTruthParticleSlimmerTau.h.

{this, "tau_pt_selection", 0.001 * Gaudi::Units::GeV}; //in GeV

m_varHandleArraysDeclared

bool AthCommonDataStore< AthCommonMsg< Algorithm > >::m_varHandleArraysDeclared

privateinherited

Definition at line 399 of file AthCommonDataStore.h.

m_vhka

std::vector<SG::VarHandleKeyArray*> AthCommonDataStore< AthCommonMsg< Algorithm > >::m_vhka

privateinherited

Definition at line 398 of file AthCommonDataStore.h.

m_xaodTruthParticleContainerName

SG::ReadHandleKey<xAOD::TruthParticleContainer> xAODTruthParticleSlimmerTau::m_xaodTruthParticleContainerName {this,"xAODTruthParticleContainerName","TruthParticles","Name of Truth Particle container"}

private

Definition at line 42 of file xAODTruthParticleSlimmerTau.h.

{this,"xAODTruthParticleContainerName","TruthParticles","Name of Truth Particle container"};

m_xaodTruthTauParticleContainerName

SG::WriteHandleKey<xAOD::TruthParticleContainer> xAODTruthParticleSlimmerTau::m_xaodTruthTauParticleContainerName {this, "xAODTruthTauParticleContainerName","TruthTaus","Name of Truth Taus contatiner from the slimmer"}

private

The key for the output xAOD truth containers.

Definition at line 45 of file xAODTruthParticleSlimmerTau.h.

{this, "xAODTruthTauParticleContainerName","TruthTaus","Name of Truth Taus contatiner from the slimmer"};

---

The documentation for this class was generated from the following files:

• xAODTruthParticleSlimmerTau.h
• xAODTruthParticleSlimmerTau.cxx