plural of Janus particle

plural of subatomic particle

plural of beta particle

(informal) The Higgs boson.

(physics) Any of the subatomic particles that does not consist of other, smaller particles; the gauge bosons, leptons and quarks.

(physics) A positively charged nucleus of a helium-4 atom (consisting of two protons and two neutrons), emitted as a consequence of radioactivity; α-particle

Any of many units of matter smaller than an atom.

(physics) An energetic electron or positron produced as the result of a nuclear reaction or nuclear decay.

A device that accelerates electrically charged particles to extremely high speeds, for the purpose of inducing high energy reactions or producing high energy radiation.

(nuclear physics) A subatomic particle that is not an elementary particle, i.e. a hadron or an atomic nucleus.