Higher Spin Dark Matter
  Little is known about dark matter beyond the fact that it does not interact
with the standard model or itself, or else does so incredibly weakly. A natural
candidate, given the history of no-go theorems against their interactions, are
higher spin fields. Here we develop the scenario of higher spin (spin $s>2$)
dark matter. We show that the gravitational production of superheavy bosonic
higher spin fields during inflation can provide all the dark matter we observe
today. We consider the observable signatures, and find a potential
characteristic signature of bosonic higher spin dark matter in directional
direct detection; we find that there are distinct spin-dependent contributions
to the double differential recoil rate, which complement the oscillatory
imprint of higher spin fields in the cosmic microwave background. We consider
the extension to higher spin fermions and supersymmetric higher spins.
