New Antimatter Nucleus Discovery Sets Heaviest Record Yet
Scientists at the Relativistic Heavy Ion Collider (RHIC) have identified the heaviest antimatter nucleus ever observed. This exotic antinucleus, named antihyperhydrogen-4, is composed of four antimatter particles: an antiproton, two antineutrons, and an antihyperon. The discovery comes from an analysis of six billion particle collisions performed at RHIC, a facility designed to recreate conditio