Holographic Unhiggs

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.

21 pages. v2: refs addded, eq. (4.15) simplified

References in corpus (22)

• Linear Confinement and AdS/QCD
• Unparticle Physics
• Model-independent constraints on Delta F=2 operators and the scale of New Physics
• Toward a Systematic Holographic QCD: A Braneless Approach
• Electroweak Breaking on a Soft Wall
• Dynamical Soft-Wall AdS/QCD
• Unparticles-Higgs Interplay
• The Soft-Wall Standard Model
• Unparticle physics and Higgs phenomenology
• The AdS/CFT/Unparticle Correspondence
• Unparticle & Higgs as Composites
• Colored Unparticles
• Unparticle Dark Matter
• Phantom Higgs from Unparticles
• The Higgs as a Portal to Plasmon-like Unparticle Excitations
• Modelling strong interactions and longitudinally polarized vector boson scattering
• Unparticle actions and gauge invariance
• Invisible Higgs boson, continuous mass fields and unHiggs mechanism
• Comments on "Gauge Fields and Unparticles"
• The Mandelstam-Terning Line Integral in Unparticle Physics -- A Reply to Galloway, Martin and Stancato
• Electroweak symmetry breaking from unparticles
• Gauge Fields and Unparticles

Cited by in corpus (31)

• Warped Electroweak Breaking Without Custodial Symmetry
• Alternatives to an Elementary Higgs
• Bulk Fermions in Warped Models with a Soft Wall
• On Holography in General Background and the Boundary Effective Action from AdS to dS
• LHC Signals of Non-Custodial Warped 5D Models
• Holographic models of composite Higgs in the Veneziano limit. Part II. Fermionic sector
• Fermion Flavor in Soft-Wall AdS
• Electroweak Precision Observables and the Unhiggs
• Unparticle physics and neutrino phenomenology
• Z-portal Continuum Dark Matter
• The Quantum Critical Higgs
• Probing New Physics by the Tail of the Off-shell Higgs in $V_L{V}_L$ Mode
• Unconstraining the Unhiggs
• From Soft Walls to Infrared Branes
• Constraining the Unhiggs with LHC data
• The Continuum Dark Matter Zoo
• On the stability of a soft-wall model
• Constraints on the Unhiggs Model from Top Quark Decay
• Continuum Superpartners from Supersymmetric Unparticles
• Collider Phenomenology of a Gluino Continuum
• Deconstructing unparticles in higher dimensions
• On Broad Kaluza-Klein Gluons
• Higgs decay into diphoton in the Composite Higgs Model
• SUSY Hidden in the Continuum
• Stability of gravity-scalar systems for domain-wall models with a soft wall
• Continuum Dark Matter
• Continuum Superpartners
• Quantum Critical Higgs: From AdS${}_5$ to Colliders
• Analytical Green's Functions for Continuum Spectra
• Undecay
• Physics of warped dimensions: discrete and continuous spectra