Towards a No-Lose Theorem for Naturalness

Understand

We derive a phenomenological no-lose theorem for naturalness up to the TeV scale, which applies when quantum corrections to the Higgs mass from top quarks are canceled by perturbative BSM particles (top partners) of similar multiplicity due to to some symmetry.

• Null results from LHC searches already seem to disfavor such partners if they are colored.
• Any partners with SM charges and ~TeV masses will be exhaustively probed by the LHC and a future 100 TeV collider.
• Therefore, we focus on neutral top partners.