General

Elementary particle

Subatomic particle having no known substructure

Force carrier

Particles (quanta of a field) that give rise to forces between other particles

Hadron

Composite subatomic particle

List of particles

List article

Massless particle

Quantum particle having zero rest mass (zero invariant or intrinsic mass)

Subatomic particle

Particle whose size or mass is less than that of the atom, or of which the atom is composed; small quantum particle

Tachyon

Hypothetical faster-than-light particle

Virtual particle

Transient quantum fluctuation (physics)