Supercool Composite Dark Matter Beyond 100 TeV

Understand

Dark Matter could be a composite state of a confining sector with an approximate scale symmetry.

• We consider the case where the associated pseudo-Goldstone boson, the dilaton, mediates its interactions with the Standard Model.
• When the confining phase transition in the early universe is supercooled, its dynamics allows for Dark Matter masses up to $10^6$ TeV.
• We derive the precise parameter space compatible with all experimental constraints, finding that this scenario can be tested partly by telescopes and entirely by gravitational waves.