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ISF::InputConverter Class Referencefinal

#include <InputConverter.h>

Inheritance diagram for ISF::InputConverter:
Collaboration diagram for ISF::InputConverter:

Public Member Functions

 InputConverter (const std::string &name, ISvcLocator *svc)
 Constructor. More...
 
virtual ~InputConverter ()
 Destructor. More...
 
virtual StatusCode initialize () override final
 Athena algtool Hooks. More...
 
virtual StatusCode finalize () override final
 Athena algtool Hook. More...
 
virtual StatusCode convert (McEventCollection &inputGenEvents, ISF::ISFParticleContainer &simParticles) const override final
 Convert selected particles from the given McEventCollection into ISFParticles and push them into the given ISFParticleContainer. More...
 
virtual StatusCode convertHepMCToG4Event (McEventCollection &inputGenEvents, G4Event &outputG4Event, McEventCollection &shadowGenEvents) const override final
 
virtual StatusCode convertHepMCToG4EventLegacy (McEventCollection &inputGenEvents, G4Event &outputG4Event) const override final
 
void ISF_to_G4Event (G4Event &event, const std::vector< ISF::ISFParticle * > &isp, HepMC::GenEvent *genEvent, HepMC::GenEvent *shadowGenEvent=nullptr, bool useHepMC=false) const override final
 Converts vector of ISF::ISFParticles to G4Event. More...
 

Private Member Functions

const G4ParticleDefinition * getG4ParticleDefinition (int pdgcode) const
 
G4PrimaryParticle * getDaughterG4PrimaryParticle (HepMC::GenParticle &gp, bool makeLinkToTruth=true) const
 
G4PrimaryParticle * getG4PrimaryParticle (ISF::ISFParticle &isp, bool useHepMC, HepMC::GenEvent *shadowGenEvent) const
 
void addG4PrimaryVertex (G4Event &g4evt, ISF::ISFParticle &isp, bool useHepMC, HepMC::GenEvent *shadowGenEvent) const
 
void processPredefinedDecays (const HepMC::GenParticlePtr &genpart, ISF::ISFParticle &isp, G4PrimaryParticle *g4particle, bool makeLinkToTruth=true) const
 
bool matchedGenParticles (const HepMC::ConstGenParticlePtr &p1, const HepMC::ConstGenParticlePtr &p2) const
 
HepMC::GenParticlePtr findShadowParticle (const HepMC::ConstGenParticlePtr &genParticle, HepMC::GenEvent *shadowGenEvent) const
 
bool isInsideG4WorldVolume (const ISF::ISFParticle &isp, const G4VSolid *worldSolid) const
 Tests whether the given ISFParticle is within the Geant4 world volume. More...
 
double getParticleMass (const HepMC::GenParticle &p) const
 get right GenParticle mass More...
 
std::vector< HepMC::GenParticlePtr > getSelectedParticles (HepMC::GenEvent &evnt, bool legacyOrdering=false) const
 get all generator particles which pass filters More...
 
bool passesFilters (const HepMC::GenParticle &p) const
 check if the given particle passes all filters More...
 
ISF::ISFParticle * convertParticle (const HepMC::GenParticlePtr &genPartPtr) const
 convert GenParticle to ISFParticle More...
 

Private Attributes

ServiceHandle< IPartPropSvc > m_particlePropSvc
 ParticlePropertyService and ParticleDataTable. More...
 
const HepPDT::ParticleDataTable * m_particleDataTable
 PDT used to look up particle masses. More...
 
bool m_useGeneratedParticleMass
 use GenParticle::generated_mass() in simulation More...
 
ToolHandleArray< IGenParticleFilter > m_genParticleFilters
 HepMC::GenParticle filters. More...
 
bool m_quasiStableParticlesIncluded
 
BooleanProperty m_useShadowEvent {this, "UseShadowEvent", false, "New approach to selecting particles for simulation" }
 

Detailed Description

Convert simulation input collections to ISFParticles for subsequent ISF simulation.

Author
Elmar.Ritsch -at- cern.ch

Definition at line 48 of file InputConverter.h.

Constructor & Destructor Documentation

◆ InputConverter()

ISF::InputConverter::InputConverter ( const std::string &  name,
ISvcLocator *  svc 
)

Constructor.

Definition at line 51 of file InputConverter.cxx.

52  : base_class(name, svc)
53  , m_particlePropSvc("PartPropSvc",name)
54  , m_particleDataTable(nullptr)
55  , m_useGeneratedParticleMass(false)
56  , m_genParticleFilters(this)
57  , m_quasiStableParticlesIncluded(false)
58 {
59  // particle mass from particle data table?
60  declareProperty("UseGeneratedParticleMass",
61  m_useGeneratedParticleMass,
62  "Use particle mass assigned to GenParticle.");
63  // particle filters
64  declareProperty("GenParticleFilters",
65  m_genParticleFilters,
66  "Tools for filtering out GenParticles.");
67  // the particle property service
68  declareProperty("ParticlePropertyService",
69  m_particlePropSvc,
70  "ParticlePropertyService to retrieve the PDT.");
71  declareProperty("QuasiStableParticlesIncluded", m_quasiStableParticlesIncluded);
72 }

◆ ~InputConverter()

ISF::InputConverter::~InputConverter ( )
virtual

Destructor.

Definition at line 76 of file InputConverter.cxx.

77 {
78 }

Member Function Documentation

◆ addG4PrimaryVertex()

void ISF::InputConverter::addG4PrimaryVertex ( G4Event &  g4evt,
ISF::ISFParticle &  isp,
bool  useHepMC,
HepMC::GenEvent *  shadowGenEvent 
) const
private

Definition at line 1145 of file InputConverter.cxx.

1147  {
1148  /*
1149  see conversion from PrimaryParticleInformation to TrackInformation in
1150  http://acode-browser.usatlas.bnl.gov/lxr/source/atlas/Simulation/G4Atlas/G4AtlasAlg/src/AthenaStackingAction.cxx#0044
1151 
1152  need to check with
1153  http://acode-browser.usatlas.bnl.gov/lxr/source/atlas/Simulation/G4Atlas/G4AtlasAlg/src/TruthHepMCEventConverter.cxx#0151
1154 
1155  that we don't miss something
1156  */
1157 
1158  G4PrimaryParticle *g4particle = this->getG4PrimaryParticle( isp, useHepMC, shadowGenEvent );
1159  if (!g4particle) {
1160  ATH_MSG_ERROR("Failed to create G4PrimaryParticle for ISParticle (" << isp <<")");
1161  return;
1162  }// Already printed a warning
1163 
1164  // create a new vertex
1165  G4PrimaryVertex *g4vertex = new G4PrimaryVertex(isp.position().x(),
1166  isp.position().y(),
1167  isp.position().z(),
1168  isp.timeStamp());
1169  g4vertex->SetPrimary( g4particle );
1170  ATH_MSG_VERBOSE("Print G4PrimaryVertex: ");
1171  if (msgLevel(MSG::VERBOSE)) { g4vertex->Print(); }
1172  g4evt.AddPrimaryVertex(g4vertex);
1173  return;
1174 }

◆ convert()

StatusCode ISF::InputConverter::convert ( McEventCollection &  inputGenEvents,
ISF::ISFParticleContainer &  simParticles 
) const
finaloverridevirtual

Convert selected particles from the given McEventCollection into ISFParticles and push them into the given ISFParticleContainer.

Definition at line 118 of file InputConverter.cxx.

120 {
121  for ( auto eventPtr : inputGenEvents ) {
122  // skip empty events
123  if (eventPtr == nullptr) { continue; }
124 
125  ATH_MSG_DEBUG("Starting conversion of GenEvent with"
126  " signal_process_id=" << HepMC::signal_process_id(eventPtr) <<
127  " and event_number=" << eventPtr->event_number() );
128 
129  // new collection containing all gen particles that passed filters
130  bool legacyOrdering = true; // FIXME: this is only to keep the same order of particles
131  // as the prior 'StackFiller' implementation
132  // TODO: remove this functionality from the
133  // getSelectedParticles function once
134  // happy with the results
135  const auto passedGenParticles = getSelectedParticles(*eventPtr, legacyOrdering);
136 
137  for ( auto& genPartPtr : passedGenParticles ) {
138  ATH_MSG_VERBOSE("Picking up following GenParticle for conversion to ISFParticle: " << genPartPtr);
139  auto simParticlePtr = convertParticle(genPartPtr);
140  if (!simParticlePtr) {
141  ATH_MSG_ERROR("Error while trying to convert input generator particles. Aborting.");
142  return StatusCode::FAILURE;
143  }
144  // add to collection that will be returned
145  simParticles.push_back(simParticlePtr);
146 
147  } // loop over passed gen particles
148 
149  } // loop over gen events
150 
151  ATH_MSG_DEBUG( "Created initial simulation particle collection with size " << simParticles.size() );
152 
153  return StatusCode::SUCCESS;
154 }

◆ convertHepMCToG4Event()

StatusCode ISF::InputConverter::convertHepMCToG4Event ( McEventCollection &  inputGenEvents,
G4Event &  outputG4Event,
McEventCollection &  shadowGenEvents 
) const
finaloverridevirtual

Definition at line 156 of file InputConverter.cxx.

158  {
159  ISF::ISFParticleContainer simParticleList{}; // particles for ISF simulation
160  ATH_CHECK(this->convert(inputGenEvents, simParticleList));
161  //Convert from ISFParticleContainer to ConstISFParticleVector
162  ISF::ISFParticleVector simParticleVector{
163  std::make_move_iterator(std::begin(simParticleList)),
164  std::make_move_iterator(std::end(simParticleList))
165  };
166  HepMC::GenEvent* shadowGenEvent =
167  !shadowGenEvents.empty()
168  ? static_cast<HepMC::GenEvent*>(shadowGenEvents.back())
169  : nullptr;
170  this->ISF_to_G4Event(outputG4Event, simParticleVector, inputGenEvents.back(),
171  shadowGenEvent);
172  return StatusCode::SUCCESS;
173 }

◆ convertHepMCToG4EventLegacy()

StatusCode ISF::InputConverter::convertHepMCToG4EventLegacy ( McEventCollection &  inputGenEvents,
G4Event &  outputG4Event 
) const
finaloverridevirtual

Definition at line 175 of file InputConverter.cxx.

176  {
177  ISF::ISFParticleContainer simParticleList{}; // particles for ISF simulation
178  ATH_CHECK(this->convert(inputGenEvents, simParticleList));
179  //Convert from ISFParticleContainer to ConstISFParticleVector
180  ISF::ISFParticleVector simParticleVector{
181  std::make_move_iterator(std::begin(simParticleList)),
182  std::make_move_iterator(std::end(simParticleList))
183  };
184  this->ISF_to_G4Event(outputG4Event, simParticleVector, inputGenEvents.back(),
185  nullptr);
186  return StatusCode::SUCCESS;
187 }

◆ convertParticle()

ISF::ISFParticle * ISF::InputConverter::convertParticle ( const HepMC::GenParticlePtr &  genPartPtr) const
private

convert GenParticle to ISFParticle

get all generator particles which pass filters

particle origin (TODO: add proper GeoID, collision/cosmics)

Definition at line 282 of file InputConverter.cxx.

282  {
283  if (!genPartPtr) { return nullptr; }
284 
285  auto pVertex = genPartPtr->production_vertex();
286  if (!pVertex) {
287  ATH_MSG_ERROR("Unable to convert following generator particle due to missing production vertex for: " << genPartPtr);
288  return nullptr;
289  }
290  auto parentEvent = genPartPtr->parent_event();
291  if (!parentEvent) {
292  ATH_MSG_ERROR("Cannot convert a GenParticle without a parent GenEvent into an ISFParticle!!!");
293  return nullptr;
294  }
295 
296  const Amg::Vector3D pos(pVertex->position().x(), pVertex->position().y(), pVertex->position().z());
297  const auto& pMomentum(genPartPtr->momentum());
298  const Amg::Vector3D mom(pMomentum.px(), pMomentum.py(), pMomentum.pz());
299 #ifdef HEPMC3
300  const double pMass = this->getParticleMass(genPartPtr);
301 #else
302  const double pMass = this->getParticleMass(*genPartPtr);
303 #endif
304  double e=pMomentum.e();
305  if (e>1) { //only test for >1 MeV in momentum
306  double px=pMomentum.px();
307  double py=pMomentum.py();
308  double pz=pMomentum.pz();
309  double teste=std::sqrt(px*px + py*py + pz*pz + pMass*pMass);
310  if (std::abs(e-teste)>0.01*e) {
311  ATH_MSG_WARNING("Difference in energy for: " << genPartPtr<<" Morg="<<pMomentum.m()<<" Mmod="<<pMass<<" Eorg="<<e<<" Emod="<<teste);
312  }
313  if (MC::isDecayed(genPartPtr) && pVertex && genPartPtr->end_vertex()) { //check for possible changes of gamma for quasi stable particles
314  const auto& prodVtx = genPartPtr->production_vertex()->position();
315  const auto& endVtx = genPartPtr->end_vertex()->position();
316  CLHEP::Hep3Vector dist3D(endVtx.x()-prodVtx.x(), endVtx.y()-prodVtx.y(), endVtx.z()-prodVtx.z());
317 
318  if (dist3D.mag()>1*Gaudi::Units::mm) {
319  CLHEP::HepLorentzVector mom( pMomentum.x(), pMomentum.y(), pMomentum.z(), pMomentum.t() );
320  double gamma_org=mom.gamma();
321  mom.setE(teste);
322  double gamma_new=mom.gamma();
323 
324  if (std::abs(gamma_new-gamma_org)/(gamma_new+gamma_org)>0.001) {
325  ATH_MSG_WARNING("Difference in boost gamma for Quasi stable particle "<<genPartPtr);
326  ATH_MSG_WARNING(" gamma(m="<<mom.m()<<")="<<gamma_org<<" gamma(m="<<pMass<<")="<<gamma_new);
327  } else {
328  ATH_MSG_VERBOSE("Quasi stable particle "<<genPartPtr);
329  ATH_MSG_VERBOSE(" gamma(m="<<mom.m()<<")="<<gamma_org<<" gamma(m="<<pMass<<")="<<gamma_new);
330  }
331  }
332  }
333  }
334 
335  const int pPdgId = genPartPtr->pdg_id();
336  const double charge = HepPDT::ParticleID(pPdgId).charge();
337  const double pTime = pVertex->position().t() / Gaudi::Units::c_light;
339  DetRegionSvcIDPair origin(AtlasDetDescr::fUndefinedAtlasRegion, ISF::fEventGeneratorSimID);
340  const auto pBarcode = HepMC::barcode(genPartPtr);
341  const auto particleID = HepMC::uniqueID(genPartPtr);
342  auto tBinding = std::make_unique<ISF::TruthBinding>(genPartPtr);
343 
344  auto hmpl = std::make_unique<HepMcParticleLink>(particleID, parentEvent->event_number(), HepMcParticleLink::IS_EVENTNUM, HepMcParticleLink::IS_ID);
345 
346  auto sParticle = std::make_unique<ISF::ISFParticle>( std::move(pos),
347  std::move(mom),
348  pMass,
349  charge,
350  pPdgId,
351  genPartPtr->status(),
352  pTime,
353  origin,
354  particleID,
355  pBarcode,
356  tBinding.release(),
357  hmpl.release() );
358  return sParticle.release();
359 }

◆ finalize()

StatusCode ISF::InputConverter::finalize ( )
finaloverridevirtual

Athena algtool Hook.

Definition at line 108 of file InputConverter.cxx.

109 {
110  ATH_MSG_DEBUG("Finalizing ...");
111  return StatusCode::SUCCESS;
112 }

◆ findShadowParticle()

HepMC::GenParticlePtr ISF::InputConverter::findShadowParticle ( const HepMC::ConstGenParticlePtr &  genParticle,
HepMC::GenEvent *  shadowGenEvent 
) const
private

Definition at line 805 of file InputConverter.cxx.

806 {
807  if (!shadowGenEvent) {
808  ATH_MSG_FATAL ("Found status==2 GenParticle with no end vertex and shadow GenEvent is missing - something is wrong here!");
809  abort();
810  }
811 #ifdef HEPMC3
812  // TODO in the future switch to using an Attribute which stores the shadow GenParticlePtr directly.
813  const int shadowId = genParticle->attribute<HepMC3::IntAttribute>("ShadowParticleId")->value();
814  for (auto& shadowParticle : shadowGenEvent->particles()) {
815  if (shadowParticle->id() == shadowId && matchedGenParticles(genParticle, shadowParticle) ) { return shadowParticle; }
816  }
817  return std::make_shared<HepMC::GenParticle>();
818 #else
819  for (HepMC::GenEvent::particle_iterator pitr=shadowGenEvent->particles_begin(); pitr != shadowGenEvent->particles_end(); ++pitr) {
820  HepMC::GenParticlePtr shadowParticle = (*pitr);
821  if (matchedGenParticles(genParticle, shadowParticle) ) { return shadowParticle; }
822  }
823  return nullptr;
824 #endif
825 
826 }

◆ getDaughterG4PrimaryParticle()

G4PrimaryParticle * ISF::InputConverter::getDaughterG4PrimaryParticle ( HepMC::GenParticle &  gp,
bool  makeLinkToTruth = true 
) const
private

Definition at line 704 of file InputConverter.cxx.

705 {
706  ATH_MSG_VERBOSE("Creating G4PrimaryParticle from GenParticle.");
707 
708  const G4ParticleDefinition *particleDefinition = this->getG4ParticleDefinition(genpart.pdg_id());
709 
710  if (particleDefinition==nullptr) {
711  ATH_MSG_ERROR("ISF_to_G4Event particle conversion failed. ISF_Particle PDG code = " << genpart.pdg_id() <<
712  "\n This usually indicates a problem with the evgen step.\n" <<
713  "Please report this to the Generators group, mentioning the release and generator used for evgen and the PDG code above." );
714  return nullptr;
715  }
716 
717  // create new primaries and set them to the vertex
718  // G4double mass = particleDefinition->GetPDGMass();
719  auto &genpartMomentum = genpart.momentum();
720  G4double px = genpartMomentum.x();
721  G4double py = genpartMomentum.y();
722  G4double pz = genpartMomentum.z();
723 
724  std::unique_ptr<G4PrimaryParticle> g4particle = std::make_unique<G4PrimaryParticle>(particleDefinition,px,py,pz);
725 
726  if (genpart.end_vertex()) {
727  // Set the lifetime appropriately - this is slow but rigorous, and we
728  // don't want to end up with something like vertex time that we have
729  // to validate for every generator on earth...
730  const auto& prodVtx = genpart.production_vertex()->position();
731  const auto& endVtx = genpart.end_vertex()->position();
732  //const G4LorentzVector lv0 ( prodVtx.x(), prodVtx.y(), prodVtx.z(), prodVtx.t() );
733  //const G4LorentzVector lv1 ( endVtx.x(), endVtx.y(), endVtx.z(), endVtx.t() );
734  //Old calculation, not taken because vertex information is not sufficiently precise
735  //g4particle->SetProperTime( (lv1-lv0).mag()/Gaudi::Units::c_light );
736 
737  CLHEP::Hep3Vector dist3D(endVtx.x()-prodVtx.x(), endVtx.y()-prodVtx.y(), endVtx.z()-prodVtx.z());
738  double tau=SetProperTimeFromDetectorFrameDecayLength(*g4particle,dist3D.mag());
739 
740  if (msgLvl(MSG::VERBOSE)) {
741  double pmag2=g4particle->GetTotalMomentum(); //magnitude of particle momentum
742  pmag2*=pmag2; //magnitude of particle momentum squared
743  double e2=g4particle->GetTotalEnergy(); //energy of particle
744  e2*=e2; //energy of particle squared
745  double beta2=pmag2/e2; //beta^2=v^2/c^2 for particle
746  double tau2=dist3D.mag2()*(1/beta2-1)/Gaudi::Units::c_light/Gaudi::Units::c_light;
747  ATH_MSG_VERBOSE("lifetime tau(beta)="<<std::sqrt(tau2)<<" tau="<<tau);
748  }
749  if (m_quasiStableParticlesIncluded) {
750  ATH_MSG_VERBOSE( "Detected primary particle with end vertex." );
751  ATH_MSG_VERBOSE( "Will add the primary particle set on." );
752  ATH_MSG_VERBOSE( "Primary Particle: " << genpart );
753  ATH_MSG_VERBOSE( "Number of daughters: " << genpart.end_vertex()->particles_out_size()<<" at position "<<genpart.end_vertex());
754  }
755  else {
756  ATH_MSG_WARNING( "Detected primary particle with end vertex." );
757  ATH_MSG_WARNING( "Will add the primary particle set on." );
758  ATH_MSG_WARNING( "Primary Particle: " << genpart );
759  ATH_MSG_WARNING( "Number of daughters: " << genpart.end_vertex()->particles_out_size()<<" at position "<<genpart.end_vertex() );
760  }
761  // Add all necessary daughter particles
762  for ( auto daughterIter=genpart.end_vertex()->particles_out_const_begin();
763  daughterIter!=genpart.end_vertex()->particles_out_const_end(); ++daughterIter ) {
764  if (m_quasiStableParticlesIncluded) {
765  ATH_MSG_VERBOSE ( "Attempting to add daughter particle: " << **daughterIter );
766  }
767  else {
768  ATH_MSG_WARNING ( "Attempting to add daughter particle: " << **daughterIter );
769  }
770  G4PrimaryParticle *daughterG4Particle = this->getDaughterG4PrimaryParticle( **daughterIter, makeLinkToTruth );
771  if (!daughterG4Particle) {
772  ATH_MSG_ERROR("Bailing out of loop over daughters of particle due to errors - will not return G4Particle.");
773  return nullptr;
774  }
775  g4particle->SetDaughter( daughterG4Particle );
776  }
777  }
778 
779  if (makeLinkToTruth) {
780  // Set the user information for this primary to point to the HepMcParticleLink...
781  std::unique_ptr<PrimaryParticleInformation> primaryPartInfo = std::make_unique<PrimaryParticleInformation>(&genpart);
782  primaryPartInfo->SetRegenerationNr(0);
783  ATH_MSG_VERBOSE("Making primary down the line with barcode " << primaryPartInfo->GetParticleUniqueID());
784  g4particle->SetUserInformation(primaryPartInfo.release());
785  }
786 
787  return g4particle.release();
788 }

◆ getG4ParticleDefinition()

const G4ParticleDefinition * ISF::InputConverter::getG4ParticleDefinition ( int  pdgcode) const
private

Special cases for Geantinos

Standard particles

Definition at line 507 of file InputConverter.cxx.

508 {
510  if (pdgcode==998) {
511  return G4ChargedGeantino::Definition();
512  }
513  if (pdgcode==999) {
514  return G4Geantino::GeantinoDefinition();
515  }
517  G4ParticleTable *ptable = G4ParticleTable::GetParticleTable();
518  if (ptable) {
519  return ptable->FindParticle(pdgcode);
520  }
521  ATH_MSG_ERROR("getG4ParticleDefinition - Failed to retrieve G4ParticleTable!");
522  return nullptr;
523 }

◆ getG4PrimaryParticle()

G4PrimaryParticle * ISF::InputConverter::getG4PrimaryParticle ( ISF::ISFParticle &  isp,
bool  useHepMC,
HepMC::GenEvent *  shadowGenEvent 
) const
private

In the case that particles are being passed back to Geant4 then we may have particles which have already interacted, so we should set the regeneration number accordingly.

Definition at line 992 of file InputConverter.cxx.

993 {
994  ATH_MSG_VERBOSE("Creating G4PrimaryParticle from ISFParticle.");
995 
996  auto* truthBinding = isp.getTruthBinding();
997  if (!truthBinding) {
998  G4ExceptionDescription description;
999  description << G4String("getG4PrimaryParticle: ") + "No ISF::TruthBinding associated with ISParticle (" << isp <<")";
1000  G4Exception("iGeant4::TransportTool", "NoISFTruthBinding", FatalException, description);
1001  return nullptr; //The G4Exception call above should abort the job, but Coverity does not seem to pick this up.
1002  }
1003  HepMC::GenParticlePtr currentGenPart = truthBinding->getCurrentGenParticle();
1004  HepMC::GenParticlePtr primaryGenpart = truthBinding->getPrimaryGenParticle();
1005 
1006  const G4ParticleDefinition *particleDefinition = this->getG4ParticleDefinition(isp.pdgCode());
1007 
1008  if (particleDefinition==nullptr) {
1009  ATH_MSG_ERROR("ISF_to_G4Event particle conversion failed. ISF_Particle PDG code = " << isp.pdgCode() <<
1010  "\n This usually indicates a problem with the evgen step.\n" <<
1011  "Please report this to the Generators group, mentioning the release and generator used for evgen and the PDG code above." );
1012  return nullptr;
1013  }
1014 
1015  // create new primaries and set them to the vertex
1016  // G4double mass = particleDefinition->GetPDGMass();
1017  G4double px(0.0);
1018  G4double py(0.0);
1019  G4double pz(0.0);
1020  if (useHepMC && currentGenPart) {
1021  auto &currentGenPartMomentum = currentGenPart->momentum();
1022  px = currentGenPartMomentum.x();
1023  py = currentGenPartMomentum.y();
1024  pz = currentGenPartMomentum.z();
1025  }
1026  else {
1027  auto &ispMomentum = isp.momentum();
1028  px = ispMomentum.x();
1029  py = ispMomentum.y();
1030  pz = ispMomentum.z();
1031  }
1032 
1033  std::unique_ptr<G4PrimaryParticle> g4particle = std::make_unique<G4PrimaryParticle>(particleDefinition,px,py,pz);
1034  // UserInformation
1035  std::unique_ptr<PrimaryParticleInformation> primaryPartInfo = std::make_unique<PrimaryParticleInformation>(primaryGenpart,&isp);
1036 
1040  const int regenerationNr = HepMC::StatusBased::generations(&isp);
1041  if (HepMC::BarcodeBased::generations(&isp) != regenerationNr) {
1042  ATH_MSG_WARNING ("StatusBased::generations() = " << regenerationNr << ", BarcodeBased::generations() = " << HepMC::BarcodeBased::generations(&isp) << ", isp: " << isp);
1043  }
1044  primaryPartInfo->SetRegenerationNr(regenerationNr);
1045 
1046  if ( currentGenPart ) {
1047  if (currentGenPart->end_vertex()) {
1048  // Old approach particle had an end vertex - predefined decays taken from the main GenEvent
1049  // No longer supported
1050  ATH_MSG_ERROR ( "getG4PrimaryParticle(): GenParticle has a valid end GenVertexPtr!" );
1051  ATH_MSG_ERROR ( "getG4PrimaryParticle(): currentGenPart: " << currentGenPart << ", barcode: " << HepMC::barcode(currentGenPart) );
1052  ATH_MSG_ERROR ( "getG4PrimaryParticle(): currentGenPart->end_vertex(): " << currentGenPart->end_vertex() << ", barcode: " << HepMC::barcode(currentGenPart->end_vertex()) );
1053  ATH_MSG_FATAL ( "getG4PrimaryParticle(): Passing GenParticles with a valid end GenVertexPtr as input is no longer supported." );
1054  abort();
1055  }
1056  else if (MC::isDecayed(currentGenPart) // Some assumptions about main GenEvent here
1057  && !currentGenPart->end_vertex()) {
1058  // New approach - predefined decays taken from shadow GenEvent
1059  // Find the matching particle in the shadowGenEvent
1060 #ifdef HEPMC3
1061  auto A_part = currentGenPart->attribute<HepMC::ShadowParticle>("ShadowParticle");
1062  HepMC::ConstGenParticlePtr shadowPart = (A_part) ? A_part->value() : findShadowParticle(currentGenPart, shadowGenEvent);
1063 #else
1064  HepMC::GenParticlePtr shadowPart = findShadowParticle(currentGenPart, shadowGenEvent);
1065 #endif
1066  if (!shadowPart) {
1067  ATH_MSG_FATAL ("Found a GenParticle with no matching GenParticle in the shadowGenEvent - something is wrong here!");
1068  abort();
1069  }
1070  if (!shadowPart->end_vertex()) {
1071  ATH_MSG_FATAL ("Found status==2 shadow GenParticle with no end vertex - something is wrong here!");
1072  abort();
1073  }
1074 #ifdef HEPMC3
1075  processPredefinedDecays(shadowPart, isp, g4particle.get());
1076 #else
1077  processPredefinedDecays(shadowPart, isp, g4particle.get(), false); // false to avoid truth-links to the shadow GenEvent
1078 #endif
1079  }
1080 
1081  double px,py,pz;
1082  const double pmass = g4particle->GetMass();
1083  CLHEP::Hep3Vector gpv = g4particle->GetMomentum();
1084  double g4px=g4particle->GetMomentum().x();
1085  double g4py=g4particle->GetMomentum().y();
1086  double g4pz=g4particle->GetMomentum().z();
1087  if (useHepMC) {
1088  //Code adapted from TruthHepMCEventConverter::TransformHepMCParticle
1089  px=g4px;
1090  py=g4py;
1091  pz=g4pz;
1092  } else {
1093  //Take mass from g4particle, put keep momentum as in currentGenPart
1094  px=currentGenPart->momentum().px();
1095  py=currentGenPart->momentum().py();
1096  pz=currentGenPart->momentum().pz();
1097  //Now a dirty hack to keep backward compatibility in the truth:
1098  //When running AtlasG4 or FullG4 between 21.0.41 and 21.0.111, the currentGenPart 3-momentum and mass was reset to the values from the g4particle
1099  //together with the mass of the g4particle after the 1st initialization of the g4particle from the genevent. This is done for a consistent mass
1100  //value in the truth record compared to the used g4 mass. Since g4particles don't store the 3-momentum directly, but rather a
1101  //unit direction vector, the mass and the kinetic energy, this reduces the numeric accuracy.
1102  //For backward compatibility, if all 3-momentum components agree to the g4particle momentum within 1 keV, we keep
1103  //this old method. This comparison is needed, since in ISF this code could be rerun after the ID or CALO simulation, where
1104  //real energy was lost in previous detectors and hence currentGenPart should NOT be changed to some g4particle values!
1105  //TODO: find a way to implement this in a backward compatible way in ISF::InputConverter::convertParticle(HepMC::GenParticlePtr genPartPtr)
1106  if (std::abs(px-g4px)<CLHEP::keV && std::abs(py-g4py)<CLHEP::keV && std::abs(pz-g4pz)<CLHEP::keV) {
1107  px=g4px;
1108  py=g4py;
1109  pz=g4pz;
1110  }
1111  }
1112  const double mag2=px*px + py*py + pz*pz;
1113  const double pe = std::sqrt(mag2 + pmass*pmass); // this does only change for boosts, etc.
1114 
1115  double originalEnergy=currentGenPart->momentum().e();
1116  if (originalEnergy>0.01) { //only test for >1 MeV in momentum
1117  if ((originalEnergy-pe)/originalEnergy>0.01) {
1118  double genpx=currentGenPart->momentum().px();
1119  double genpy=currentGenPart->momentum().py();
1120  double genpz=currentGenPart->momentum().pz();
1121  double genp=sqrt(genpx*genpx + genpy*genpy + genpz*genpz);
1122  ATH_MSG_WARNING("Truth change in energy for: " << currentGenPart<<" Morg="<<currentGenPart->momentum().m()<<" Mmod="<<pmass<<" Eorg="<<originalEnergy<<" Emod="<<pe<<" porg="<<genp<<" pmod="<<gpv.mag());
1123  }
1124  }
1125 
1126 #ifdef HEPMC3
1127  auto& currentGenPart_nc = currentGenPart;
1128 #else
1129  auto* currentGenPart_nc = currentGenPart;
1130 #endif
1131  currentGenPart_nc->set_momentum(HepMC::FourVector(px,py,pz,pe));
1132  } // Truth was detected
1133 
1134  ATH_MSG_VERBOSE("PrimaryParticleInformation:");
1135  ATH_MSG_VERBOSE(" GetParticleUniqueID = " << primaryPartInfo->GetParticleUniqueID());
1136  ATH_MSG_VERBOSE(" GetRegenerationNr = " << primaryPartInfo->GetRegenerationNr());
1137  ATH_MSG_VERBOSE(" GetHepMCParticle = " << primaryPartInfo->GetHepMCParticle());
1138  ATH_MSG_VERBOSE(" GetISFParticle = " << primaryPartInfo->GetISFParticle());
1139  g4particle->SetUserInformation(primaryPartInfo.release());
1140 
1141  return g4particle.release();
1142 }

◆ getParticleMass()

double ISF::InputConverter::getParticleMass ( const HepMC::GenParticle &  p) const
private

get right GenParticle mass

Definition at line 388 of file InputConverter.cxx.

389 {
390  // default value: generated particle mass
391  double mass = part.generated_mass();
392  ATH_MSG_VERBOSE("part.generated_mass, mass="<<mass);
393 
394  // 1. use PDT mass?
395  if ( !m_useGeneratedParticleMass ) {
396  const int absPDG = std::abs(part.pdg_id());
397  HepPDT::ParticleData const *pData = (m_particleDataTable)
398  ? m_particleDataTable->particle(absPDG)
399  : nullptr;
400  if (pData) {
401  mass = pData->mass();
402  ATH_MSG_VERBOSE("using pData mass, mass="<<mass);
403  }
404  else {
405  ATH_MSG_WARNING( "Unable to find mass of particle with PDG ID '" << absPDG << "' in ParticleDataTable. Will set mass to generated_mass: " << mass);
406  }
407  }
408  return mass;
409 }

◆ getSelectedParticles()

std::vector< HepMC::GenParticlePtr > ISF::InputConverter::getSelectedParticles ( HepMC::GenEvent &  evnt,
bool  legacyOrdering = false 
) const
private

get all generator particles which pass filters

Definition at line 244 of file InputConverter.cxx.

244  {
245  auto allGenPartBegin = evnt.particles_begin();
246  auto allGenPartEnd = evnt.particles_end();
247 
248  // reserve destination container with maximum size, i.e. number of particles in input event
249  std::vector<HepMC::GenParticlePtr> passedGenParticles{};
250  size_t maxParticles = std::distance(allGenPartBegin, allGenPartEnd);
251  passedGenParticles.reserve(maxParticles);
252 
253  if (legacyOrdering) {
254  // FIXME: remove this block and the 'legacyOrdering' flag
255  // once we don't need the legacy order any longer
256  auto vtxIt = evnt.vertices_begin();
257  auto vtxItEnd = evnt.vertices_end();
258  for ( ; vtxIt != vtxItEnd; ++vtxIt ) {
259  const auto vtxPtr = *vtxIt;
260  std::copy_if (vtxPtr->particles_begin(HepMC::children),
261  vtxPtr->particles_end(HepMC::children),
262  std::back_inserter(passedGenParticles),
263  [this](HepMC::GenParticlePtr p){return this->passesFilters(*p);});
264  }
265  }
266  else {
267  std::copy_if (allGenPartBegin,
268  allGenPartEnd,
269  std::back_inserter(passedGenParticles),
270  [this](HepMC::GenParticlePtr p){return this->passesFilters(*p);});
271  }
272 
273  passedGenParticles.shrink_to_fit();
274 
275  return passedGenParticles;
276 }

◆ initialize()

StatusCode ISF::InputConverter::initialize ( )
finaloverridevirtual

Athena algtool Hooks.

Definition at line 83 of file InputConverter.cxx.

84 {
85  ATH_MSG_VERBOSE("initialize() begin");
86 
87  // setup PDT if requested (to get particle masses later on)
88  if (!m_useGeneratedParticleMass) {
89  ATH_CHECK(m_particlePropSvc.retrieve());
90  m_particleDataTable = m_particlePropSvc->PDT();
91  if (!m_particleDataTable) {
92  ATH_MSG_FATAL( "Could not get ParticleDataTable from " << m_particlePropSvc << ". Abort" );
93  return StatusCode::FAILURE;
94  }
95  }
96 
97  if (!m_genParticleFilters.empty()) {
98  ATH_CHECK(m_genParticleFilters.retrieve());
99  }
100 
101  ATH_MSG_VERBOSE("initialize() successful");
102  return StatusCode::SUCCESS;
103 }

◆ ISF_to_G4Event()

void ISF::InputConverter::ISF_to_G4Event ( G4Event &  event,
const std::vector< ISF::ISFParticle * > &  isp,
HepMC::GenEvent *  genEvent,
HepMC::GenEvent *  shadowGenEvent = nullptr,
bool  useHepMC = false 
) const
finaloverride

Converts vector of ISF::ISFParticles to G4Event.

Definition at line 468 of file InputConverter.cxx.

471  {
472  // G4Event *g4evt = new G4Event(ctx.eventID().event_number());
473 
474  // retrieve world solid (volume)
475  const G4VSolid *worldSolid = G4TransportationManager::GetTransportationManager()->GetNavigatorForTracking()->GetWorldVolume()->GetLogicalVolume()->GetSolid();
476 
477  for ( ISF::ISFParticle *ispPtr: ispVector ) {
478  ISF::ISFParticle &isp = *ispPtr;
479  if ( !isInsideG4WorldVolume(isp, worldSolid) ) {
480  ATH_MSG_WARNING("Unable to convert ISFParticle to G4PrimaryParticle!");
481  ATH_MSG_WARNING(" ISFParticle: " << isp );
482  if (worldSolid) {
483  ATH_MSG_WARNING(" is outside Geant4 world volume: ");
484  worldSolid->DumpInfo();
485  G4cout << std::flush;
486  }
487  else {
488  ATH_MSG_WARNING(" is outside Geant4 world volume.");
489  }
490  continue;
491  }
492  this->addG4PrimaryVertex(event, isp, useHepMC, shadowGenEvent);
493  }
494 
495  AtlasG4EventUserInfo* atlasG4EvtUserInfo =
496  dynamic_cast<AtlasG4EventUserInfo*>(event.GetUserInformation());
497  if (!atlasG4EvtUserInfo) {
498  atlasG4EvtUserInfo = new AtlasG4EventUserInfo;
499  event.SetUserInformation(atlasG4EvtUserInfo);
500  }
501  atlasG4EvtUserInfo->SetLastProcessedTrackID(0); // TODO Check if it is better to set this to -1 initially
502  atlasG4EvtUserInfo->SetLastProcessedStep(0); // TODO Check if it is better to set this to -1 initially
503  atlasG4EvtUserInfo->SetHepMCEvent(genEvent);
504 }

◆ isInsideG4WorldVolume()

bool ISF::InputConverter::isInsideG4WorldVolume ( const ISF::ISFParticle &  isp,
const G4VSolid *  worldSolid 
) const
private

Tests whether the given ISFParticle is within the Geant4 world volume.

Definition at line 1177 of file InputConverter.cxx.

1178 {
1179 
1180  const Amg::Vector3D &pos = isp.position();
1181  const G4ThreeVector g4Pos( pos.x(), pos.y(), pos.z() );
1182  EInside insideStatus = worldSolid->Inside( g4Pos );
1183 
1184  bool insideWorld = insideStatus != kOutside;
1185  return insideWorld;
1186 }

◆ matchedGenParticles()

bool ISF::InputConverter::matchedGenParticles ( const HepMC::ConstGenParticlePtr &  p1,
const HepMC::ConstGenParticlePtr &  p2 
) const
private

Definition at line 792 of file InputConverter.cxx.

794 {
795  return (HepMC::barcode(p1) == HepMC::barcode(p2))
796  && (p1->status() == p2->status())
797  && (p1->pdg_id() == p2->pdg_id())
798  && ((p1->momentum().px()) == (p2->momentum().px()))
799  && ((p1->momentum().py()) == (p2->momentum().py()))
800  && ((p1->momentum().pz()) == (p2->momentum().pz()))
801  && (float(p1->momentum().m()) == float(p2->momentum().m()));
802 }

◆ passesFilters()

bool ISF::InputConverter::passesFilters ( const HepMC::GenParticle &  p) const
private

check if the given particle passes all filters

Definition at line 441 of file InputConverter.cxx.

442 {
443  // TODO: implement this as a std::find_if with a lambda function
444  for ( const auto& filter : m_genParticleFilters ) {
445  // determine if the particle passes current filter
446  bool passFilter = filter->pass(part);
447  ATH_MSG_VERBOSE("GenParticleFilter '" << filter.typeAndName() << "' returned: "
448  << (passFilter ? "true, will keep particle."
449  : "false, will remove particle."));
450  const auto& momentum = part.momentum();
451  ATH_MSG_VERBOSE("Particle: ("
452  <<momentum.px()<<", "
453  <<momentum.py()<<", "
454  <<momentum.pz()<<"), pdgCode: "
455  <<part.pdg_id() );
456 
457  if (!passFilter) {
458  return false;
459  }
460  }
461 
462  return true;
463 }

◆ processPredefinedDecays()

void ISF::InputConverter::processPredefinedDecays ( const HepMC::GenParticlePtr &  genpart,
ISF::ISFParticle &  isp,
G4PrimaryParticle *  g4particle,
bool  makeLinkToTruth = true 
) const
private

Set the lifetime appropriately - this is slow but rigorous, and we don't want to end up with something like vertex time that we have to validate for every generator on earth...

Definition at line 910 of file InputConverter.cxx.

911 {
915  const auto& prodVtx = genpart->production_vertex()->position();
916  const auto& endVtx = genpart->end_vertex()->position();
917 
918  CLHEP::Hep3Vector dist3D(endVtx.x()-prodVtx.x(), endVtx.y()-prodVtx.y(), endVtx.z()-prodVtx.z());
919  double tau=SetProperTimeFromDetectorFrameDecayLength(*g4particle,dist3D.mag());
920 
921  if (msgLvl(MSG::VERBOSE)) {
922  double pmag2=g4particle->GetTotalMomentum(); //magnitude of particle momentum
923  pmag2*=pmag2; //magnitude of particle momentum squared
924  double e2=g4particle->GetTotalEnergy(); //energy of particle
925  e2*=e2; //energy^2 of particle
926  double beta2=pmag2/e2; //beta^2=v^2/c^2 for particle
927  double mass2=g4particle->GetMass(); //mass of particle
928  mass2*=mass2; //mass^2 of particle
929 
930  double tau2=dist3D.mag2()*(1/beta2-1)/Gaudi::Units::c_squared;
931 
932  const G4LorentzVector lv0( prodVtx.x(), prodVtx.y(), prodVtx.z(), prodVtx.t() );
933  const G4LorentzVector lv1( endVtx.x(), endVtx.y(), endVtx.z(), endVtx.t() );
934  //Old calculation, not taken because vertex information is not sufficiently precise
935  //g4particle->SetProperTime( (lv1-lv0).mag()/Gaudi::Units::c_light );
936  G4LorentzVector dist4D(lv1);
937  dist4D-=lv0;
938 
939  double dist4Dgamma=std::numeric_limits<double>::infinity();
940  if (dist4D.t()>0 && dist4D.mag2()>0) {
941  dist4Dgamma=dist4D.gamma();
942  } else {
943  ATH_MSG_VERBOSE( "dist4D t="<<dist4D.t()<<" mag2="<<dist4D.mag2());
944  }
945 
946  G4LorentzVector fourmom(g4particle->GetMomentum(),g4particle->GetTotalEnergy());
947  double fourmomgamma=std::numeric_limits<double>::infinity();
948  if (fourmom.t()>0 && fourmom.mag2()>0) {
949  fourmomgamma=fourmom.gamma();
950  } else {
951  ATH_MSG_VERBOSE( "fourmom t="<<fourmom.t()<<" mag2="<<fourmom.mag2());
952  }
953 
954  ATH_MSG_VERBOSE( "gammaVertex="<<dist4Dgamma<<" gammamom="<<fourmomgamma<<" gamma(beta)="<<1/std::sqrt(1-beta2)<<" lifetime tau(beta)="<<std::sqrt(tau2)<<" lifetime tau="<<tau);
955  }
956  if (m_quasiStableParticlesIncluded) {
957  ATH_MSG_VERBOSE( "Detected primary particle with end vertex." );
958  ATH_MSG_VERBOSE( "Will add the primary particle set on." );
959  ATH_MSG_VERBOSE( "ISF Particle: " << isp );
960  ATH_MSG_VERBOSE( "Primary Particle: " << genpart );
961  ATH_MSG_VERBOSE( "Number of daughters: " << genpart->end_vertex()->particles_out_size() << " at position "<< genpart->end_vertex() );
962  }
963  else {
964  ATH_MSG_WARNING( "Detected primary particle with end vertex. This should only be the case if" );
965  ATH_MSG_WARNING( "you are running with quasi-stable particle simulation enabled. This is not" );
966  ATH_MSG_WARNING( "yet validated - you'd better know what you're doing. Will add the primary" );
967  ATH_MSG_WARNING( "particle set on." );
968  ATH_MSG_WARNING( "ISF Particle: " << isp );
969  ATH_MSG_WARNING( "Primary Particle: " << genpart );
970  ATH_MSG_WARNING( "Number of daughters: " << genpart->end_vertex()->particles_out_size() );
971  }
972  // Add all necessary daughter particles
973  for ( auto daughter: *(genpart->end_vertex())) {
974  if (m_quasiStableParticlesIncluded) {
975  ATH_MSG_VERBOSE ( "Attempting to add daughter particle: " << daughter );
976  }
977  else {
978  ATH_MSG_WARNING ( "Attempting to add daughter particle: " << daughter );
979  }
980 #ifdef HEPMC3
981  G4PrimaryParticle *daughterG4Particle = this->getDaughterG4PrimaryParticle( daughter, makeLinkToTruth );
982 #else
983  G4PrimaryParticle *daughterG4Particle = this->getDaughterG4PrimaryParticle( *daughter, makeLinkToTruth );
984 #endif
985  if (!daughterG4Particle) {
986  ATH_MSG_FATAL("Bailing out of loop over daughters due to errors.");
987  }
988  g4particle->SetDaughter( daughterG4Particle );
989  }
990 }

Member Data Documentation

◆ m_genParticleFilters

ToolHandleArray<IGenParticleFilter> ISF::InputConverter::m_genParticleFilters
private

HepMC::GenParticle filters.

Definition at line 137 of file InputConverter.h.

◆ m_particleDataTable

const HepPDT::ParticleDataTable* ISF::InputConverter::m_particleDataTable
private

PDT used to look up particle masses.

Definition at line 133 of file InputConverter.h.

◆ m_particlePropSvc

ServiceHandle<IPartPropSvc> ISF::InputConverter::m_particlePropSvc
private

ParticlePropertyService and ParticleDataTable.

particle properties svc to retrieve PDT

Definition at line 132 of file InputConverter.h.

◆ m_quasiStableParticlesIncluded

bool ISF::InputConverter::m_quasiStableParticlesIncluded
private

Definition at line 139 of file InputConverter.h.

◆ m_useGeneratedParticleMass

bool ISF::InputConverter::m_useGeneratedParticleMass
private

use GenParticle::generated_mass() in simulation

Definition at line 135 of file InputConverter.h.

◆ m_useShadowEvent

BooleanProperty ISF::InputConverter::m_useShadowEvent {this, "UseShadowEvent", false, "New approach to selecting particles for simulation" }
private

Definition at line 140 of file InputConverter.h.

The documentation for this class was generated from the following files:
ISF::ISFParticleContainer
std::list< ISF::ISFParticle * > ISFParticleContainer
generic ISFParticle container (not necessarily a std::list!)
Definition: ISFParticleContainer.h:23
LArG4FSStartPointFilter.part
part
Definition: LArG4FSStartPointFilter.py:21
ISF::InputConverter::addG4PrimaryVertex
void addG4PrimaryVertex(G4Event &g4evt, ISF::ISFParticle &isp, bool useHepMC, HepMC::GenEvent *shadowGenEvent) const
Definition: InputConverter.cxx:1145
AllowedVariables::e
e
Definition: AsgElectronSelectorTool.cxx:37
ISF::DetRegionSvcIDPair
std::pair< AtlasDetDescr::AtlasRegion, ISF::SimSvcID > DetRegionSvcIDPair
the datatype to be used to store each individual particle hop
Definition: ISFParticle.h:30
AtlasG4EventUserInfo::SetLastProcessedTrackID
void SetLastProcessedTrackID(int trackID)
record the value of G4Track::GetTrackID() for the current G4Step.
Definition: AtlasG4EventUserInfo.h:85
AtlasG4EventUserInfo
This class is attached to G4Event objects as UserInformation. It holds a pointer to the HepMC::GenEve...
Definition: AtlasG4EventUserInfo.h:23
ATH_MSG_FATAL
#define ATH_MSG_FATAL(x)
Definition: AthMsgStreamMacros.h:34
test_pyathena.px
px
Definition: test_pyathena.py:18
python.SystemOfUnits.mm
float mm
Definition: SystemOfUnits.py:98
AtlasG4EventUserInfo::SetLastProcessedStep
void SetLastProcessedStep(int stepNumber)
record value of the G4Track::GetCurrentStepNumber() for the current G4Step.
Definition: AtlasG4EventUserInfo.h:102
ISF::InputConverter::getG4ParticleDefinition
const G4ParticleDefinition * getG4ParticleDefinition(int pdgcode) const
Definition: InputConverter.cxx:507
FullCPAlgorithmsTest_eljob.flush
flush
Definition: FullCPAlgorithmsTest_eljob.py:194
ISF::InputConverter::ISF_to_G4Event
void ISF_to_G4Event(G4Event &event, const std::vector< ISF::ISFParticle * > &isp, HepMC::GenEvent *genEvent, HepMC::GenEvent *shadowGenEvent=nullptr, bool useHepMC=false) const override final
Converts vector of ISF::ISFParticles to G4Event.
Definition: InputConverter.cxx:468
Base_Fragment.mass
mass
Definition: Sherpa_i/share/common/Base_Fragment.py:59
HepMC::StatusBased::generations
int generations(const T &p)
Method to return how many interactions a particle has undergone during simulation based on the status...
Definition: MagicNumbers.h:270
HepMC::signal_process_id
int signal_process_id(const GenEvent &e)
Definition: GenEvent.h:635
AtlasG4EventUserInfo::SetHepMCEvent
void SetHepMCEvent(HepMC::GenEvent *)
set m_theEvent, the pointer to the HepMC::GenEvent used to create the G4Event.
Definition: AtlasG4EventUserInfo.cxx:13
HepMC::GenParticlePtr
GenParticle * GenParticlePtr
Definition: GenParticle.h:37
TRTCalib_cfilter.p1
p1
Definition: TRTCalib_cfilter.py:130
PlotCalibFromCool.begin
begin
Definition: PlotCalibFromCool.py:94
ISF::ISFParticle
Definition: ISFParticle.h:42
ISF::ISFParticle::pdgCode
int pdgCode() const
PDG value.
AtlasDetDescr::fUndefinedAtlasRegion
@ fUndefinedAtlasRegion
Definition: AtlasRegion.h:23
athena.value
value
Definition: athena.py:124
PrimaryParticleInformation::GetRegenerationNr
int GetRegenerationNr()
return the number of times the particle represented by the G4PrimaryParticle has undergone a non-dest...
Definition: PrimaryParticleInformation.h:55
covarianceTool.passFilter
bool passFilter
Definition: covarianceTool.py:604
ATH_MSG_VERBOSE
#define ATH_MSG_VERBOSE(x)
Definition: AthMsgStreamMacros.h:28
ISF::InputConverter::m_particlePropSvc
ServiceHandle< IPartPropSvc > m_particlePropSvc
ParticlePropertyService and ParticleDataTable.
Definition: InputConverter.h:132
Analysis::pMass
constexpr double pMass
Definition: JpsiPlus2Tracks.cxx:34
LArG4AODNtuplePlotter.pe
pe
Definition: LArG4AODNtuplePlotter.py:116
ISF::InputConverter::convertParticle
ISF::ISFParticle * convertParticle(const HepMC::GenParticlePtr &genPartPtr) const
convert GenParticle to ISFParticle
Definition: InputConverter.cxx:282
HepMC::BarcodeBased::generations
int generations(const T &p)
Method to return how many interactions a particle has undergone during simulation (only to be used in...
Definition: MagicNumbers.h:211
mergePhysValFiles.end
end
Definition: DataQuality/DataQualityUtils/scripts/mergePhysValFiles.py:92
ISF::InputConverter::processPredefinedDecays
void processPredefinedDecays(const HepMC::GenParticlePtr &genpart, ISF::ISFParticle &isp, G4PrimaryParticle *g4particle, bool makeLinkToTruth=true) const
Definition: InputConverter.cxx:910
ISF::ISFParticle::position
const Amg::Vector3D & position() const
The current position of the ISFParticle.
covarianceTool.filter
filter
Definition: covarianceTool.py:514
ISF::InputConverter::findShadowParticle
HepMC::GenParticlePtr findShadowParticle(const HepMC::ConstGenParticlePtr &genParticle, HepMC::GenEvent *shadowGenEvent) const
Definition: InputConverter.cxx:805
TRTCalib_cfilter.p2
p2
Definition: TRTCalib_cfilter.py:131
python.utils.AtlRunQueryDQUtils.p
p
Definition: AtlRunQueryDQUtils.py:209
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Definition: DecayParser.py:31
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mag2 method - forward to squaredNorm()
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calculates the distance between two point in 3D space
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check if the given particle passes all filters
Definition: InputConverter.cxx:441
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get right GenParticle mass
Definition: InputConverter.cxx:388
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Returns true if the collection is empty.
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pointer to the simulation truth - optional, can be 0
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glabal timer - how long have I taken so far?
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Definition: PrimaryParticleInformation.cxx:28
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Definition: LArMinBiasAlgConfig.py:65
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