plural of Janus particle

plural of alpha particle

(physics) A fermion that is its own antiparticle and thus capable of self-annihilation.

The physics of subatomic particles

plural of fundamental particle

(physics) a particle that exists for a limited time and space, introducing uncertainty in their energy and momentum

plural of lambda particle

lambda baryon

(physics) A hypothetical particle having physical quantities on the Planck scale, most importantly being one Planck mass in mass.

A photon with a wavelength short enough to be considered a gamma ray, usually emitted from radioactivity.