Three quarks for Muster Mark!
"the release doesn’t tell El Reg how that binding takes place without annihilation, which is a pity"
Should be similar to positronium - a proton and an antiproton bound by the electromagnetic force "orbiting each other" -- in the rather inappropriate classical imagery, Here, a b-quark and a b-bar quark bound by the color force are "orbiting each other". Don't ask for the probability density function over the states which happens to exclude the "mutual annihilation" state (a description less apt to lead you astray I would think), I don't know anything about that.
“a lot of the mass of everyday objects comes from the strong interaction we are investigating using the chi-b”
What he means to say is that most of the mass of nucleons is not in the quarks (with masses in the MeV range for standard stuff) but in the energetic color force (quantizable to massless gluons) that holds them together - around 99% IIRC. Interestingly, when tightly confined the quarks are only lightly touched by this force, which is the opposite of what one see with the electromagnetic force.