• DOI:10.1103/PhysRevD.85.095003
• Corpus ID: 118506168

Unconstraining the unHiggs model

@article{Englert2012UnconstrainingTU,
  title={Unconstraining the unHiggs model},
  author={Christoph R. Englert and Michael Spannowsky and David Stancato and John Terning},
  journal={Physical Review D},
  year={2012},
  volume={85},
  pages={095003}
}

• C. Englert, M. Spannowsky, +1 author J. Terning
• Published 1 March 2012
• Physics
• Physical Review D

We investigate whether or not perturbative unitarity is preserved in the unHiggs model for the scattering process of heavy quarks and longitudinal gauge bosons q¯q→V+LV−L. With the Yukawa coupling given in the original formulation of the unHiggs model, the model preserves unitarity for unHiggs scaling dimensions d≤1.5. We examine the LHC phenomenology which is implied by the unHiggs model in this parameter range in detail and discuss to what extent the LHC can test d if an excess is measured in the phenomenologically clean ZZ channel in the future or if the LHC measurement remains consistent with the background. We then make use of the AdS/CFT correspondence to derive a new Yukawa coupling which is conformally invariant at high energies and show that with this Yukawa coupling, the theory is unitary for 1≤d<2.