GenData Class Reference

GenData is a class for particle data access. More...

#include <GenData.h>

Collaboration diagram for GenData:

Public Member Functions
	GenData ()
virtual	~GenData ()
std::optional< double >	particleMass (int pdgId) const
std::optional< double >	particleLifetime (int pdgId) const
std::optional< std::string >	particleName (int pdgId) const

Private Member Functions
const HepPDT::ParticleData *	particleData (int pid) const
	Access an element in the particle data table.

Private Attributes
ServiceHandle< IPartPropSvc >	m_ppSvc {"PartPropSvc", "GenData"}
	Handle on the particle property service.
std::atomic< bool >	m_initialized {false}

Detailed Description

GenData is a class for particle data access.

Definition at line 30 of file GenData.h.

Constructor & Destructor Documentation

GenData()

GenData::GenData ( )

inline

Definition at line 33 of file GenData.h.

{ };

~GenData()

virtual GenData::~GenData ( )

inlinevirtual

Definition at line 35 of file GenData.h.

{ }

Member Function Documentation

particleData()

const HepPDT::ParticleData * GenData::particleData ( int pid ) const

inlineprivate

Access an element in the particle data table.

Definition at line 39 of file GenData.h.

                                                        {
    if (!m_initialized) {
      if (m_ppSvc.retrieve().isFailure()) {
            std::cerr<<  "GenData: failed to retrieve PartPropSvc\n";
            std::abort();
      }
      m_initialized = true;
    }
    const int absPid = std::abs(pid);
    return m_ppSvc->PDT()->particle(HepPDT::ParticleID(absPid));
  }

particleLifetime()

std::optional< double > GenData::particleLifetime ( int pdgId ) const

inline

Definition at line 57 of file GenData.h.

                                                        {
    const HepPDT::ParticleData* particle = particleData(std::abs(pdgId));
    return particle ? std::optional<double>{particle->lifetime()} : std::nullopt;
  }

particleMass()

std::optional< double > GenData::particleMass ( int pdgId ) const

inline

Definition at line 52 of file GenData.h.

                                                    {
    const HepPDT::ParticleData* particle = particleData(std::abs(pdgId));
    return particle ? std::optional<double>{particle->mass().value()} : std::nullopt;
  }

particleName()

std::optional< std::string > GenData::particleName ( int pdgId ) const

inline

Definition at line 62 of file GenData.h.

                                                       {
    const HepPDT::ParticleData* particle = particleData(std::abs(pdgId));
    return particle ? std::optional<std::string>{particle->name()} : std::nullopt;
  }

Member Data Documentation

m_initialized

std::atomic<bool> GenData::m_initialized {false}

mutableprivate

Definition at line 71 of file GenData.h.

{false};

m_ppSvc

ServiceHandle<IPartPropSvc> GenData::m_ppSvc {"PartPropSvc", "GenData"}

private

Handle on the particle property service.

Definition at line 70 of file GenData.h.

{"PartPropSvc", "GenData"};

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

• GenData.h