Since its basic “anti-ness” was not changed by the loss of its charge, it became an antineutron with a reversed magnetic field. If an antineutron hits a neutron, both turn into energy.

Strange matter Illustration of how antihyperhelium-4 – a bound state of two antiprotons, an antineutron and an antilambda – is created in lead–lead collisions at CERN. (Courtesy: CERN/ J Ditzel with ...

Unfortunately, getting to the next antielement, antilithium, could take years. The production rate of antimatter drops 1,000 times for every antiproton or antineutron you have to add.

“And for every further antineutron or antiproton you add, you lose another factor of a million,” says Michael Doser, spokesman for CERN’s AEGIS experiment studying the properties of antimatter.

The antihypertriton – consisting of an antiproton, an antineutron and an antilambda particle – is the heaviest antinucleus yet produced and opens up a new realm of strange antinucluei. It could also ...

Dark-matter induced neutron-antineutron oscillations Journal: Journal of High Energy Physics Published: 2025-01-28 DOI: 10.1007/jhep01 (2025)132 Affiliations: 1 Authors: 2 Go to article ...