Well Tempered Cosmology: Scales
  Well tempered cosmology provides a well defined path for obtaining cosmology
with a low energy cosmic acceleration despite a high (Planck) energy
cosmological constant $\Lambda$, through a scalar field dynamically canceling
$\Lambda$. We explore relations between the mass scales entering the various
Horndeski gravity terms, and focus on the cases of only one or only two mass
scales, obtaining general solutions for the form of the action. The resulting
cosmology can be natural and viable, and as one of the only paths to dealing
with the cosmological constant problem it has a rationale to be a benchmark
cosmology.
