noun
Фермион
(Standard Model) Any elementary or composite particle that has half-integer spin and thus obeys Fermi–Dirac statistics and the Pauli exclusion principle (equivalently, a particle for which the wavefunction of any system of identical such particles changes sign whenever two are swapped); a baryon, a lepton or a quark; (slightly more loosely) any such particle or any composite particle composed of fermions.
Согласно теореме о спин-статистике, волновая функция системы идентичных фермионов (частиц с полуцелым спином) антисимметрична при операции обмена любых двух частиц.