Scalar spectrum in a graviton soft wall model

Abstract

In this study we present a unified phenomenological analysis of the scalar glueball and scalar meson spectra within an AdS/QCD framework in the bottom up approach. For this purpose we generalize the recently developed graviton soft-wall (GSW) model, which has shown an excellent agreement with the lattice QCD glueball spectrum, to a description of glueballs and mesons with a unique energy scale. In this scheme, dilatonic effects, are incorporated in the metric as a deformation of the AdS space. We apply the model also to the heavy meson spectra with success. We obtain quadratic mass equations for all scalar mesons while the glueballs satisfy an almost linear mass equation. Besides their spectra, we also discuss the mixing of scalar glueball and light scalar meson states within a unified framework: the GSW model. To this aim, the light-front holographic approach, which connects the mode functions of AdS/QCD to the light-front wave functions, is applied. This relation provides the probabilistic interpretation required to properly investigate the mixing conditions.

arXiv comment10 pages, 13 figures. Accepted version on J.Phys G. The analysis on heavy scalar mesons has been included

References in corpus (38)

• The Large N Limit of Superconformal Field Theories and Supergravity
• QCD and a Holographic Model of Hadrons
• Linear Confinement and AdS/QCD
• The glueball spectrum from an anisotropic lattice study
• Chiral symmetry breaking from five dimensional spaces
• Glueball Spectrum and Matrix Elements on Anisotropic Lattices
• Hadronic Spectra and Light-Front Wavefunctions in Holographic QCD
• Light-Front Dynamics and AdS/QCD Correspondence: The Pion Form Factor in the Space- and Time-Like Regions
• Hadronic Spectrum of a Holographic Dual of QCD
• Scalar mesons above and below 1 GeV
• Light-Front Holography: A First Approximation to QCD
• Is $f_0(1500)$ a Scalar Glueball?
• The Physics of Glueballs
• Glueballs and k-strings in SU(N) gauge theories : calculations with improved operators
• Light scalar mesons in the soft-wall model of AdS/QCD
• Light-Front Hadron Dynamics and AdS/CFT Correspondence
• Nonperturbative QCD Coupling and its $\beta$ function from Light-Front Holography
• Towards the glueball spectrum from unquenched lattice QCD
• Light and heavy mesons in a soft-wall holographic approach
• Light-Front Dynamics and AdS/QCD Correspondence: Gravitational Form Factors of Composite Hadrons
• On the light glueball spectrum in a holographic description of QCD
• Universality of Generalized Parton Distributions in Light-Front Holographic QCD
• An AdS/QCD holographic wavefunction for the rho meson and diffractive rho meson electroproduction
• Superconformal Gauge Theories and Non-Critical Superstrings
• Meson wave function from holographic models
• Conditional entropy of glueball states
• Dark matter and Higgs bosons in the MSSM
• Glueball spectra and Regge trajectories from a modified holographic softwall model
• Heavy quarkonium in a holographic QCD model
• The transverse structure of the pion in momentum space inspired by the AdS/QCD correspondence
• Quark Wigner distributions and spin-spin correlations
• Scalar and Tensor Glueballs as Gravitons
• The quark masses and meson spectrum: A holographic approach
• GPDs at non-zero skewness in ADS/QCD model
• Baryons in a soft-wall AdS-Schwarzschild approach at low temperature
• Family of dilatons and metrics for AdS/QCD models
• Decay constants in AdS/QCD: a different approach
• AdS gravity and glueball spectrum

Cited by in corpus (10)

• Meson and glueball spectroscopy within the graviton soft wall model
• Towards a theory of bottom-up holographic models for linear Regge trajectories of light mesons
• Flavor Exotic Triply-Heavy Tetraquark States in AdS/QCD Potential
• The pion in the graviton soft-wall model: phenomenological applications
• Proton and neutron form factors from deformed gravity/gauge duality
• Configurational entropy of heavy-quark QCD exotica: engendering the next generation
• Fermionic and bosonic fluctuation-dissipation theorem from a deformed AdS holographic model at finite temperature and chemical potential
• AdS/QCD oddball masses and Odderon Regge trajectory from a twist-five operator approach
• Glueballs at high temperature within the Hard-Wall holographic model
• On incorporation of heavy-quark mass into soft-wall holographic models