RE: TIL That Antimatter Can Be And Has Been Measured

If you allow me to correct one sentence from your post:

What they found, in terms of spectrum value, seems to prove the Standard Model of particle physics, which says that the Hydrogen matter and antimatter atoms light spectrum should have the same values.

This is not directly the Standard Model of particle physics as the latter does not describe (anti)hydrogen at all, but elementary particles instead. We are actually talking more at the level of standard nuclear physics which describes nature at a larger scale.

In contrast, the CPT theorem, which they tried to falsify, is assumed to hold at any scale (both in the Standard Model and in nuclear physics). And this is the CPT theorem that says that the hydrogen and antihydrogen spectra should be identical.

This being said, and to come back to the discussion, it is definitely true we are not "measuring spheres" but instead tracks in a detector from which we can reconstruct what happened at a very impressive level of confidence (even if there are uncertainties, those are under control).

Thanks for sharing this news (I was definitely too late on that one. You may btw be interested in reading a few older posts I wrote on antimatter in the past).