Stable Bound States of Asymmetric Dark Matter
  The simplest renormalizable effective field theories with asymmetric dark
matter bound states contain two additional gauge singlet fields one being the
dark matter and the other a mediator particle that the dark matter annihilates
into. We examine the physics of one such model with a Dirac fermion as the dark
matter and a real scalar mediator. For a range of parameters the Yukawa
coupling of the dark matter to the mediator gives rise to stable asymmetric
dark matter bound states. We derive properties of the bound states including
nuggets formed from $N\gg1$ dark matter particles. We also consider the
formation of bound states in the early universe and direct detection of dark
matter bound states. Many of our results also hold for symmetric dark matter.
