The effect of higher dimensional QCD operators on the spectroscopy of bottom-up holographic models
arXiv:1905.13086 · doi:10.3390/universe7040102
Abstract
Within the bottom-up holographic approach to QCD, the highly excited hadrons are identified with the bulk normal modes in the fifth "holographic" dimension. We show that additional states in the same mass range can appear also from taking into consideration the 5D fields dual to higher dimensional QCD operators. The possible effects of these operators were not taken into account in almost all phenomenological applications. Using the scalar case as the simplest example, we demonstrate that the additional higher dimensional operators lead to a large degeneracy of highly excited states in the Soft Wall holographic model while in the Hard Wall holographic model, they result in a proliferation of excited states. The considered model can be viewed as the first analytical toy-model predicting a one-to-one mapping of the excited meson states to definite QCD operators to which they prefer to couple.
arXiv comment11 pages
References in corpus (47)
- Gauge Theory Correlators from Non-Critical String Theory
- QCD and a Holographic Model of Hadrons
- Linear Confinement and AdS/QCD
- Glueballs, Hybrids, Multiquarks. Experimental facts versus QCD inspired concepts
- Chiral symmetry breaking from five dimensional spaces
- Light-Front Holographic QCD and Emerging Confinement
- Light-Front Holography: A First Approximation to QCD
- A Holographic Prediction of the Deconfinement Temperature
- Systematics of q anti-q states in the (n,M^2) and (J,M^2) planes
- Toward the excited meson spectrum of dynamical QCD
- Four Sorts of Mesons
- Light scalar mesons in the soft-wall model of AdS/QCD
- Chiral Symmetry Breaking in Soft-Wall AdS/QCD
- Dilaton in a soft-wall holographic approach to mesons and baryons
- Toward a Systematic Holographic QCD: A Braneless Approach
- Holographic Model for Hadrons in Deformed AdS5 Background
- The chiral condensate in holographic models of QCD
- Glueball Regge trajectories from gauge/string duality and the Pomeron
- Geometric approach to condensates in holographic QCD
- Dynamical Soft-Wall AdS/QCD
- Linear square-mass trajectories of radially and orbitally excited hadrons in holographic QCD
- Dynamical holographic QCD with area-law confinement and linear Regge trajectories
- Holographic glueball structure
- Hadrons in AdS / QCD correspondence
- Perfecting the Ultra-violet of Holographic Descriptions of QCD
- Chiral Symmetry Breaking and Meson Wave Functions in Soft-Wall AdS/QCD
- Decay constants in soft wall AdS/QCD revisited
- AdS/QCD Phenomenological Models from a Back-Reacted Geometry
- Improved soft-wall model with a negative dilaton
- Holographic Picture of Heavy Vector Meson Melting
- Generalized Soft Wall Model
- Holographic like models as a five-dimensional rewriting of large-Nc QCD
- Non-linear Regge trajectories with AdS/QCD
- Low-energy holographic models for QCD
- SVZ + 1/q2 expansion versus some QCD holographic Models
- Glueballs and deconfinement temperature in AdS/QCD
- Holographic model for heavy vector meson masses
- The quark masses and meson spectrum: A holographic approach
- Electromagnetic properties of the nucleon and the Roper resonance in soft-wall AdS/QCD at finite temperature
- AdS/QCD models describing a finite number of excited mesons with Regge spectrum
- Regge spectrum from holographic models inspired by OPE
- Gluon parton densities in soft-wall AdS/QCD
- Implications of the Crystal Barrel data for meson-baryon symmetries
- AdS/QCD: The Relevance of the Geometry
- Investigating AdS/QCD duality through scalar glueball correlators
- Note on relation between bottom-up holographic models and large-Nc QCD
- On holographic relation between radial meson trajectories and deconfinement temperature