CERN’s Large Hadron Collider finds the heaviest antimatter particle yet

ALICE finds first ever evidence of the antimatter partner of hyperhelium-4

Illustration of the production of antihyperhelium-4 (a bound state of two antiprotons, an antineutron and an antilambda) in lead–lead collisions. (Image: J. Ditzel with AI-assistance) Collisions betwe...