TL;DR
This paper introduces a 5D holographic model for the Unhiggs, a non-local unparticle Higgs, providing a new perspective on its spectrum, gauge invariance, and unitarity in WW scattering.
Contribution
It develops a local 5D theory framework for the Unhiggs, elucidating its spectrum and unitarization mechanisms, and explores broader phenomenological implications.
Findings
Unhiggs spectrum derived from 5D boundary effective action
Gauge invariance is straightforwardly implemented
Kaluza-Klein excitations can dominate WW unitarization
Abstract
We propose an extra-dimensional approach to the unparticle Higgs (Unhiggs). The non-local 4D Unhiggs action is derived as the boundary effective action of a local 5D theory. We review the mechanism to generate unparticle spectra in the context of warped soft-wall models. Gauge invariance can be simply implemented and unitarity of the longitudinal WW scattering amplitude is particularly transparent. Furthermore, the 5D approach uncovers a broader spectrum of phenomenological possibilities. The Unhiggs is accompanied by another continuum formed by Kaluza-Klein excitations of the Standard Model gauge fields which, in some cases, may take over the leading role in unitarizing WW scattering.
Peer Reviews
No public reviews on file for this paper yet. If you reviewed it on a platform where reviews are public (OpenReview, ICLR, NeurIPS, ICML), you can paste yours below so the community can read it here.
Videos
No videos yet. Explain this paper in a talk, walkthrough, or lecture? Add one.