The Unhiggs

TL;DR

This paper explores an Unhiggs model where the Higgs is part of a conformal field theory with a higher scaling dimension, potentially addressing the little hierarchy problem by reducing sensitivity to the cutoff.

Contribution

It introduces the concept of an Unhiggs with a higher scaling dimension that can break electroweak symmetry and unitarize WW scattering while suppressing gauge couplings.

Findings

Unhiggs can break electroweak symmetry effectively.

Unhiggs reduces sensitivity of the weak scale to the cutoff.

Model offers a potential solution to the little hierarchy problem.

Abstract

We examine a scenario where the Higgs is part of an approximate conformal field theory, and has a scaling dimension greater than one. Such an unparticle Higgs (or Unhiggs) can still break electroweak symmetry and unitarize WW scattering, but its gauge couplings are suppressed. An Unhiggs model has a reduced sensitivity of the weak scale to the cutoff, and can thus provide a solution to the little hierarchy problem.