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dragonwriter12/09/20241 replyview on HN

> Does this actually prove that antimatter necessarily exists?

Antimatter definitely exists, it is detectable, and used; e.g, PET scans use positrons (anti-electrons), and there have been experiments (only in animal models last I knew) with anti-proton radiotherapy for cancers.

This is the first evidence of a particular configuration of antimatter, not the first evidence of antimatter.


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benbayard12/09/2024

To be more specific this is the first time we have detected hyper-antimatter of Helium where one of the quarks in the nucleus is an anti-strange quark (an anti-lambda from the article)

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