Holographic conformal transition and light scalars

Abstract

We present an holographic approach to strongly-coupled theories close to the conformal to non-conformal transition, trying to understand the presence of light scalars as recent lattice simulations seem to suggest. We find that the dilaton is always the lightest resonance, although not parametrically lighter than the others. We provide a simple analytic formula for the dilaton mass that allows us to understand this behavior. The pattern of the meson mass spectrum, as we get close to the conformal transition, is found to be quite similar to that in lattice simulations. We provide further predictions from holography that can be checked in the future.These five-dimensional models can also implement new solutions to the hierarchy problem, having implications for searches at the LHC and cosmology.

arXiv comment34 pages, 9 figures

References in corpus (34)

• Gauge Theory Correlators from Non-Critical String Theory
• The Large N Limit of Superconformal Field Theories and Supergravity
• Modulus Stabilization with Bulk Fields
• AdS/CFT Correspondence and Symmetry Breaking
• QCD and a Holographic Model of Hadrons
• Chiral symmetry breaking from five dimensional spaces
• Radion Dynamics and Electroweak Physics
• Walking, Weak first-order transitions, and Complex CFTs
• Strong Double Higgs Production at the LHC
• Comments on Unparticles
• Holographic Models for QCD in the Veneziano Limit
• The scalar and pseudoscalar sector in a five-dimensional approach to chiral symmetry breaking
• Nonperturbative investigations of SU(3) gauge theory with eight dynamical flavors
• The Supercooled Universe
• A Naturally Light Dilaton and a Small Cosmological Constant
• A naturally light dilaton
• Holographic Estimate of Oblique Corrections for Technicolor
• Light flavor-singlet scalars and walking signals in $N_f=8$ QCD on the lattice
• Large N Field Theory and AdS Tachyons
• Flavor hierarchies from dynamical scales
• Massive holographic QCD in the Veneziano limit
• Naturally light dilatons from nearly marginal deformations
• Conformal Phase Transitions at Weak and Strong Coupling
• Light scalars from a compact fifth dimension
• Holographic Walking from Tachyon DBI
• TASI 2011: Four Lectures on TeV Scale Extra Dimensions
• Moduli effective action in warped brane world compactifications
• The Excitation of the Global Symmetry-Breaking Vacuum in Composite Higgs Models
• Holographic glueballs from the circle reduction of Romans supergravity
• Towards holographic walking from N=4 super Yang-Mills
• A Natural Hierarchy and a low New Physics scale from a Bulk Higgs
• Hyperscaling violation and Electroweak Symmetry Breaking
• The Global Higgs as a Signal for Compositeness at the LHC
• Self-Organized Higgs Criticality

Cited by in corpus (23)

• Peccei-Quinn Phase Transition at LIGO
• Gauge/gravity dual dynamics for the strongly coupled sector of composite Higgs models
• Holographic Complex Conformal Field Theories
• Holographic models of composite Higgs in the Veneziano limit. Part I. Bosonic sector
• Emergent strongly coupled ultraviolet fixed point in four dimensions with 8 Kähler-Dirac fermions
• Avoided Deconfinement in Randall-Sundrum Models
• A light dilaton at the LHC
• Non-Hermitian Holography
• Probing the holographic dilaton
• A light dilaton in a metastable vacuum
• Relevant Dilaton Stabilization
• Toward minimal composite Higgs models from regular geometries in bottom-up holography
• The Coulomb branch of N=4 SYM and dilatonic scions in supergravity
• Dilatonic states near holographic phase transitions
• Holographic light dilaton at the conformal edge
• Phase transitions and light scalars in bottom-up holography
• Multiple Mass Hierarchies from Complex Fixed Point Collisions
• Dilaton at the LHC: Complementary Probe of Composite Higgs
• Holographic Lifshitz flows
• Light dilaton near critical points in top-down holography
• Light scalar modes from holographic deformations
• Radion-Activated Higgs Mechanism
• A new way of calculating the effective potential for a light radion