TERMIUM Plus^®

Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 DEF

A counterpart to a particle, identical as to mass, lifetime and spin but with charge and magnetic moment reversed in sign.  3, record 1, English, - antiparticle

Record number: 1, Textual support number: 1 CONT

Any of several species of subatomic particles that are identical in mass with electrons, protons, or neutrons but opposite in electrical charge or (in the case of the neutron) in magnetic moment. Thus a positron is an electron with a positive charge; an antiproton is a proton with a negative charge; an antineutron has no charge but has a magnetic moment opposite to that of a neutron. A photon has no antiparticle, since it has no particulate properties. (A photon is considered to be its own antiparticle). When an antiparticle collides with its opposite particle, both particles are annihilated and their masses are converted to photons of equivalent energy.  4, record 1, English, - antiparticle

Record 1,  Textual support,  French

Record number: 1, Textual support number: 1 DEF

Particule symétrique d'une autre, c'est-à-dire possédant la même masse, le même spin et la même vie moyenne mais des charges opposées, qui peut s'annihiler avec cette dernière.  2, record 1, French, - antiparticule

Record number: 1, Textual support number: 1 OBS

Découverte due à P.A.M. Dirac qui lui a permis de démontrer, en théorie quantique, l'existence d'une symétrie essentielle de la nature.  2, record 1, French, - antiparticule

Record number: 1, Textual support number: 1 PHR

Contenir une antiparticule.  2, record 1, French, - antiparticule

Record 1,  Textual support,  Spanish

Record number: 1, Textual support number: 1 DEF

Partícula elemental cuya masa en reposo, espín y modulo del isospín son iguales a los de la partícula correspondiente, pero cuyos valores de carga, paridad y otras magnitudes características son opuestos.  1, record 1, Spanish, - antipart%C3%ADcula