Is there a end point to elementary particle sizes?

Question

Are Quarks the smallest elementary particles possible?

In: Physics

Answer 1

As far as physicists can figure out, there are four types of elementary particle in the universe: quarks, leptons (which electrons belong to), force-carriers, and the Higgs particle. That’s as far down as we can drill, but we don’t know whether anything smaller will pop up if we’re able to drill deeper.

There are still things that don’t fit with the Standard Model that could potentially point to other or smaller elementary particles, such as anomalous results from particle physics experiments and the existence of dark matter. But, until we get a full grasp on why they exist or happen, we won’t know if that’s the case or if there’s some other explanation.

So, the answer is yes. Unless it isn’t.