[prewett]

Well, you sort of have to have the particle collide with something in order to detect it. When a photon collides with your retina, you see a flash of light (it causes a protein to twist, which generates an electrical signal, which is sent to your brain). The problem is the neutrinos tend to pass right through without getting absorbed by anything. No absorption, no change, no detection.

So the neutrino has to collide with something to get detected. Given that previous neutrino detections require a large vat of heavy water underground, while the current results are from a little box, the salient question is what did they do differently (and is it applicable elsewhere). The article completely ignores this.

[magicalhippo]

The experiment is described in this[1] article. Relevant quote:

The detector is positioned on the beam collision axis line-of-sight (LOS) 480 m from the ATLAS collision point (interaction point 1, IP1) in an unused service tunnel, TI12. [...] A huge number of neutrinos are produced in LHC collisions via hadron decays, and their flux is collimated along the beam collision axis.

So what they did differently is to place the detector in a spot which has much higher neutrino flux than your average spot on earth. Thus the small detector volume is compensated for by having more neutrinos pass through it in a given time.

[1]: https://arxiv.org/abs/2207.11427