GenData Class Reference

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

#include <GenData.h>

Collaboration diagram for GenData:

Classes
struct	ParticleInfo

Public Member Functions
	GenData ()
	GenData (const std::string &sname, const std::string &name)
virtual	~GenData ()=default
std::optional< double >	particleMass (int pdgId) const
	Get the mass of a particle by PDG ID.
std::optional< double >	particleLifetime (int pdgId) const
	Get the lifetime of a particle by PDG ID.
std::optional< std::string >	particleName (int pdgId) const
	Get the name of a particle by PDG ID.

Private Member Functions
ParticleInfo	particleInfo (int absPid) const

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

Detailed Description

GenData is a class for particle data access.

Definition at line 18 of file GenData.h.

Constructor & Destructor Documentation

GenData() [1/2]

GenData::GenData

(

)

Definition at line 15 of file GenData.cxx.

:  m_service_name("PartPropSvc"), m_name("GenData"), m_ppSvc("PartPropSvc", "GenData") {}

GenData() [2/2]

GenData::GenData	(	const std::string &	sname,
		const std::string &	name )

Definition at line 17 of file GenData.cxx.

: m_service_name(sname),  m_name(name), m_ppSvc(sname, name) {}

~GenData()

virtual GenData::~GenData ( )

virtualdefault

Member Function Documentation

particleInfo()

GenData::ParticleInfo GenData::particleInfo ( int absPid ) const

private

Definition at line 19 of file GenData.cxx.

                                                          {
 
  if (!m_initialized) {
    if (m_ppSvc.retrieve().isFailure()) {
      std::cerr << "GenData: failed to retrieve IPartPropSvc(" << m_service_name << ", " << m_name << ")\n";
      std::abort();
    }
    m_initialized = true;
  }
 
    ParticleInfo info;
    if (const HepPDT::ParticleData* particle = m_ppSvc->PDT()->particle(HepPDT::ParticleID(absPid))) {
      info.mass = particle->mass().value();
      info.lifetime = particle->lifetime();
      info.name = particle->name();
    }  
    return info;
}

particleLifetime()

std::optional< double > GenData::particleLifetime

(

int

pdgId

)

const

Get the lifetime of a particle by PDG ID.

Definition at line 42 of file GenData.cxx.

                                                             {
  return particleInfo(std::abs(pdgId)).lifetime;
}

particleMass()

std::optional< double > GenData::particleMass

(

int

pdgId

)

const

Get the mass of a particle by PDG ID.

Definition at line 38 of file GenData.cxx.

                                                         {
  return particleInfo(std::abs(pdgId)).mass;
}

particleName()

std::optional< std::string > GenData::particleName

(

int

pdgId

)

const

Get the name of a particle by PDG ID.

Definition at line 46 of file GenData.cxx.

                                                            {
  return particleInfo(std::abs(pdgId)).name;
}

Member Data Documentation

m_initialized

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

mutableprivate

Definition at line 49 of file GenData.h.

{false};

m_name

std::string GenData::m_name {"GenData"}

private

Definition at line 47 of file GenData.h.

{"GenData"};

m_ppSvc

ServiceHandle<IPartPropSvc> GenData::m_ppSvc

private

Definition at line 48 of file GenData.h.

m_service_name

std::string GenData::m_service_name {"PartPropSvc"}

private

Handle on the particle property service.

Definition at line 46 of file GenData.h.

{"PartPropSvc"};

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

• GenData.h
• GenData.cxx