int NumDaughters() const
Returns the number of daughter particles flowing from this one.
size_t Self() const
Returns the index of this particle.
int PdgCode() const
Return the type of particle as a PDG ID.
bool IsPrimary() const
Returns whether the particle is the root of the flow.
Hierarchical representation of particle flow.
PFParticle()
Default constructor necessary for gccxml - not really for public use.