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Illustration of the decay topology of a hypernucleus and the variables for the selection criteria. Credit: Nature (2024). DOI: 10.1038/s41586-024-07823-0 In experiments at the Brookhaven National Lab in the US, an international team of physicists has detected the heaviest “anti-nuclei” ever seen. The tiny, short-lived objects are composed of exotic antimatter particles. The measurements of
Insertion of the ALPHA-g apparatus. Credit: CERN, CC BY-SA A substance called antimatter is at the heart of one of the greatest mysteries of the universe. We know that every particle has an antimatter companion that is virtually identical to itself, but with the opposite charge. When a particle and its antiparticle meet, they annihilate
Physicists an CERN used a 25-centimeter-long cylinder, called ALPHA-g, to observe antimatter falling downwards due to gravity. For the first time, scientists have observed antimatter particles—the mysterious twins of the visible matter all around us—falling downwards due to the effect of gravity, Europe’s physics lab CERN announced on Wednesday. The experiment was hailed as “huge