ALPHA Collaboration An international physics collaboration that creates and confines antihydrogen to study fundamental symmetries and the properties of neutral antimatter.
Antihydrogen — the antimatter counterpart of hydrogen Antihydrogen Antihydrogen is the antimatter form of hydrogen, made of an antiproton bound to a positron. Produced and trapped in labs, it is studied to test CPT symmetry, gravity on antimatter…
Antineutron — the neutron's antiparticle Antineutron The antineutron is the neutral antiparticle of the neutron, built from antiquarks. It shares mass and many properties with the neutron but has opposite quantum numbers and annihila…
Antiparticle: definition, properties, production, and significance Antiparticle An antiparticle has the same mass but opposite additive quantum numbers to a particle. This article explains properties, pair production and annihilation, history, uses, and open q…
