The Planck particle is a hypothetical particle that is believed to exist at the Planck scale.

The gamma particle is a type of ionizing radiation.

An α-particle is a type of ionizing radiation.

The discovery of the Higgs particle was a major breakthrough in particle physics.

The particle zoo is a term used in physics to describe the vast array of subatomic particles.

The cascade particle is a type of xi baryon.

The wave-particle duality is a fundamental concept in quantum mechanics.

The particle horizons in the universe are expanding.

The particle horizon is the maximum distance from which light could have reached the observer in the age of the universe.

The Z particle is an elementary particle in the Standard Model of particle physics.