In the early universe, could there have been "atoms" made of $W$ bosons? I'm wondering if there ever could have been a time in our universe's history during which the charged W bosons could have combined to form a kind of short-lived "atom".
For example, we know that electrons and positrons can combine to form positronium, and we also know that antimuons and electrons can combine to produce muonium. But what about the W+ and W-? Could they have combined into a kind of "atom" back when the universe was a lot hotter and denser?
 A: While the density and temperature of the early universe could have allowed a condensate of W bosons, in equilibrium with W decay products, this high temperature would also likely prevent the formation of bonds. For the same reason there were no stable hydrogen atoms until the universe cooled sufficiently.
A: An atom-like configuration of a $W^+$ and $W^-$ requires electromagnetic interactions between them. The characteristic timescale for electromagnetic interactions is $10^{-14}$ to $10^{-20}$ seconds (source: http://www.ph.surrey.ac.uk/partphys/chapter6/nature.html). Meanwhile, the $W$ boson lifetime is around $10^{-25}$ seconds, which is at least 5 orders of magnitude smaller than the characteristic time for electromagnetic interactions.
A: Well it is highly unlikely the formation of these atoms with W+ and W- bosons. Even if they did form they would immediately decay. Even in the early universe, these particles ae unstable. Or the W+ and W- could fuse to form a few Z bosons or Higgs bosons and the onium would fall apart. 
