I know that particle accelerators have created and observed top quarks. Also, that they have measured their mass. However, I do not find if we have detected their size (or even attempted to detect their diameter, it would be hard to because they decay so quickly). I find it interesting that a single quark can have more mass than a whole proton. It would be logical to me to assume that the top might actually be larger in diameter than a proton. Note: I understand that we currently treat quarks as "point particles", but I'm concerned with if it could actually be possible that the top be larger than a proton, i.e. do we have proof that they are smaller than a proton?