Speaker
Description
The LHC has not discovered any New Physics beyond the anticipated $h(125)$ boson, pushing the SUSY scale to multi-TeV, and new ideas abound for out-of-the-box searches, or Effective Field Theory with high cutoff scale. But, have we exhausted dimension-4 operators involving sub-TeV particles that are not exotic (non-XLP)? We advocate the existence of an extra Higgs doublet that possessess extra Yukawa couplings, where emergent mass-mixing hierarchies and alignment have well-hidden their effects so far. ${\cal O}(1)$ extra Higgs quartics can induce first order electroweak phase transition and imply sub-TeV spectrum. The extra Yukawa couplings, led by $\rho_{tt}$ and $\rho_{tc}$ that can be ${\cal O}(1)$, can drive electroweak baryogenesis, while $\rho_{ee}/\rho_{tt} \propto \lambda_e/\lambda_t$, the ratio of standard electron and top Yukawa couplings, can tame electron EDM. Finding these extra Higgs bosons via $cg \to tH/A \to tt\bar c$, $tt\bar t$ and $cg \to bH^+ \to bt\bar b$ processes (plus processes allowed by Higgs boson splittings) at the LHC, and pushing the flavor frontier to break the flavor code, would usher in a new Higgs/flavor era. SUSY may still be realized at a higher scale, possibly related to the Landau pole of the scalar sector.
