Belle2::EvtPDLUtil Namespace Reference

Utilities for converting PDG codes into particle names. More...

Functions
bool	hasAntiParticle (int pdgCode)
	Checks if the particle with given pdg code has an anti-particle or not.
std::string	particleName (int pdgCode)
	Returns the name of a particle with given pdg code.
std::string	antiParticleName (int pdgCode)
	Returns the name of the anti-particle of a particle with given pdg code.
std::string	antiParticleListName (int pdgCode, const std::string &label)
	Returns the name of the anti-particle ParticleList for particles with given pdg code and with given label.
std::string	particleListName (int pdgCode, const std::string &label)
	Returns the name of the particle ParticleList for particles with given pdg code and with given label.
double	charge (int pdgCode)
	Returns electric charge of a particle with given pdg code.

Detailed Description

Utilities for converting PDG codes into particle names.

Uses the TDatabasePDG class, which is filled from evt.pdl by basf2.

Function Documentation

antiParticleListName()

std::string antiParticleListName	(	int	pdgCode,
		const std::string &	label
	)

Returns the name of the anti-particle ParticleList for particles with given pdg code and with given label.

If the anti-particle does not exist the particle's name is returned instead

Definition at line 30 of file EvtPDLUtil.cc.

{
  if (label.empty())
    return antiParticleName(pdgCode);
  return antiParticleName(pdgCode) + ":" + label;
}

antiParticleName()

std::string antiParticleName

(

int

pdgCode

)

Returns the name of the anti-particle of a particle with given pdg code.

If the anti-particle does not exist the particle's name is returned instead.

Definition at line 25 of file EvtPDLUtil.cc.

{
  return TDatabasePDG::Instance()->GetParticle(pdgCode)->AntiParticle()->GetName();
}

charge()

double charge

(

int

pdgCode

)

Returns electric charge of a particle with given pdg code.

Definition at line 44 of file EvtPDLUtil.cc.

{
  return TDatabasePDG::Instance()->GetParticle(pdgCode)->Charge() / 3.0;
}

hasAntiParticle()

bool hasAntiParticle

(

int

pdgCode

)

Checks if the particle with given pdg code has an anti-particle or not.

Parameters

pdgCode

of the particle

Returns

true/false if anti-particle does/does not exist

Definition at line 12 of file EvtPDLUtil.cc.

{
  TParticlePDG* particle = TDatabasePDG::Instance()->GetParticle(pdgCode);
  TParticlePDG* antiParticle = particle->AntiParticle();
 
  return antiParticle and (particle != antiParticle);
}

particleListName()

std::string particleListName	(	int	pdgCode,
		const std::string &	label
	)

Returns the name of the particle ParticleList for particles with given pdg code and with given label.

Definition at line 37 of file EvtPDLUtil.cc.

{
  if (label.empty())
    return particleName(pdgCode);
  return particleName(pdgCode) + ":" + label;
}

particleName()

std::string particleName

(

int

pdgCode

)

Returns the name of a particle with given pdg code.

Definition at line 20 of file EvtPDLUtil.cc.

{
  return TDatabasePDG::Instance()->GetParticle(pdgCode)->GetName();
}