this post was submitted on 04 Oct 2024
216 points (97.8% liked)
science
14480 readers
1062 users here now
just science related topics. please contribute
note: clickbait sources/headlines aren't liked generally. I've posted crap sources and later deleted or edit to improve after complaints. whoops, sry
Rule 1) Be kind.
lemmy.world rules: https://mastodon.world/about
I don't screen everything, lrn2scroll
founded 1 year ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
There's a particular particle, the kaon, which can be created. This particle is highly unstable, and so, decays rapidly into other particles. Ever so often, it doesn't decay down the normal route but instead decays into a pion. This is extremely rare (6 in a billion).
In physics, we have what's called the "standard model". It's our best guess as to how physics works at the fundamental level. It's incomplete, however, with multiple slight variations. This decay pathway is interesting because it is quite sensitive to differences between these models. By measuring the energy and ratio of the resulting mess, we can disguard some variants of the model (their predicted energy is too high or too low).
By using a large number of little measurements, like this, scientists can home in on the most accurate "standard model" variant. This, in turn, informs work on a deeper understanding of physics.
Basically, a decade's work to put a single new point onto a graph. A point that onky theoretical physicists care about, and might, or might not be useful down the line. Welcome to modern physics.