noun
- The antiparticle counterpart of a nucleon (proton or neutron), predicted by quantum field theory and observed in particle physics experiments.
Usage: physics; technical
Examples
- Antinucleons are produced in high-energy particle collisions.
- The antinucleon has the same mass as its corresponding nucleon but opposite charge.
- Scientists study antinucleons to understand matter-antimatter symmetry.
- An antinucleon will annihilate upon contact with a nucleon, releasing energy.
- The detection of antinucleons confirmed predictions of antimatter in the Standard Model.