ALICE finds first ever evidence of the antimatter partner of hyperhelium-4

Wow, fascinating. I had no idea these hypernuclei even existed!

Interesting background read: https://en.m.wikipedia.org/wiki/Hypernucleus

„Using a machine-learning technique that outperforms conventional hypernuclei search techniques, the ALICE researchers looked at the data for signals of hyperhydrogen-4, hyperhelium-4 and their antimatter partners.“

Which ML technique are they using? Could it be XGBoost, because I heard CERN is using it?

Wow TIL two cool facts for antimatter use.

Exploring the Universe’s Origins: The Big Bang should have created equal amounts of matter and antimatter, yet our universe is predominantly matter. Studying antimatter helps scientists investigate this imbalance, shedding light on the fundamental laws of physics.

Medical Applications: Antimatter plays a role in medical imaging techniques like Positron Emission Tomography (PET) scans, which are used to detect conditions such as cancer.

What is "hyperhelium"? Google only turns up things related to this article.

OT, but does anyone have updates on potential for antihelium detection on the AMS aboard the ISS? Seems like they have a handful of detections, but aren't quite statistically good enough to be conclusive?

https://en.wikipedia.org/wiki/Alpha_Magnetic_Spectrometer

It will be interesting to see if this work will help us understand why the universe isn't half anti-matter.

Reminded me of this weird but cool song: Large Hadron Rap - https://www.youtube.com/watch?v=j50ZssEojtM :)

Oh god I just noticed it's from 16 years ago... I'm getting old

Does this actually prove that antimatter necessarily exists?

Does this prove that antimatter is necessary for theories of gravity to concur with other observations?

Do the observed properties of antimatter particles correspond with antimatter as the or a necessary nonuniform correction factor to theories of gravity?

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I’ve always wondered whether the “missing” antimatter in the universe is simply too far away to see, past the light horizon.

And then there’s the exotic theory that at the big bang, regular matter went one direction in time and antimatter the opposite direction.