1

I found an answer to a question I had and that is that quarks have no spatial extent. But how is that possible? Everything has to have some spatial extent; to keep continuing on and on, right?

Qmechanic
  • 220,844
dark_wonderland
  • 25

1 Answers1

1

To the best of our knowledge, all of the quarks, leptons, and bosons of the standard model are point-like particles, which are mathematical abstractions with zero size. There is also something called an extended particle, a proton, for example, has a fixed size but is said to have a "fuzzy" edge. But even these point-like particles still have an extended effect, due to the effect of the field surrounding them. Here's a picture from Fermilab (which is where most of this info came from).

enter image description here

nosbig64
  • 21