Top Quark decays into Bottom Quark, Antimuon and Muon-neutrino
This is a big top quark that reverses to a big bottom quark and contains a mini antimuon and mini muon-neutrino.
Because of the reversible zipper, you can turn it inside out and insert the mini particles either way.
Now try turning it inside out in a millionth of a billionth of a second and you've got it.

ABOVE: Top quark with mini particles

ABOVE: Zipper on reverse

ABOVE: Transitioning from top quark to bottom quark

ABOVE: Now it's been turned inside out.

ABOVE: Flip it over and it's now a big bottom quark.

Commisioned for Fermilab, February 2009.