# What happens to the individual quark(s) produced in a $W$ boson decay 'chain'?

Just over two-thirds of the time, a $$W$$ boson decays into quarks, usually an up quark and a down antiquark... Right?

Since quarks hate being alone, what happens next?

Does the up quark pull a single other quark (or, rather, antiquark) from the 'sea' and become a meson, that then decays?

And, then, the down antiquark does the same thing?

Is there any chance a proton or neutron is created?

There are never any lone quarks in the hadronization process. The $$u$$ and $$\bar d$$ are produced in a color-singlet state, confined together in a flux bag, making them basically a ridiculously excited state of a pion. They fly apart, and the bag confining them stretches until pair-production of additional valence quarks allows it to split into color-neutral pieces separated by vacuum. All of the quarks are produced in pairs, and it is not really the $$u\bar d$$ quarks that trigger pair production; it would be more accurate to say that the flux tube does it.