Lawrence Berkeley National Laboratory - 2010 March 04
The strangest form of antimatter ever seen has been discovered by the STAR experiment at the Relativistic Heavy Ion Collider (RHIC), at DOE’s Brookhaven National Laboratory in New York. The new particle goes by the jawbreaking name “anti-hyper-triton.”
Translated, that means a nucleus of antihydrogen containing one antiproton and one antineutron – plus one heavy relative of the antineutron, an antilambda hyperon. It’s that massive antilambda that makes the newly discovered antinucleus “hyper.”