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Scientists Create Heaviest Antimatter Nucleus: Antihyperhelium-4!

4/23/2025

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Summary

Story summary

In a groundbreaking achievement, researchers at the Large Hadron Collider have unveiled antihyperhelium-4, the heaviest antimatter nucleus ever produced in a laboratory. This remarkable discovery, resulting from high-speed lead ion collisions, eclipses the previous record held by the STAR Collaboration in 2024 with antihyperhydrogen-4 at Brookhaven National Laboratory.

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Story summary

In a groundbreaking achievement, researchers at the Large Hadron Collider have unveiled antihyperhelium-4, the heaviest antimatter nucleus ever produced in a laboratory. This remarkable discovery, resulting from high-speed lead ion collisions, eclipses the previous record held by the STAR Collaboration in 2024 with antihyperhydrogen-4 at Brookhaven National Laboratory.