The positron is the antimatter counterpart of the electron, identical in mass but carrying an equal and opposite electric charge. Like the electron, it also behaves like a tiny bar magnet, and according to a key prediction of the Standard Model of particle physics, its magnetic moment should be ...

Source: [Phys.org](https://phys.org/news/2026-10-positron-cyclotron-key-standard.html)

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