Light Meson Masses using AdS/QCD modified Soft Wall Model

Abstract

We analyze light vector and scalar meson mass spectra using a novel approach where a modified soft wall model with a UV-cutoff is considered. Including this cutoff introduces an extra energy scale. For this model, we found that the masses for the scalar and vector spectra are well fitted within a very small RMS error for 14 of these states, with non-linear trajectories given by two common parameters, the UV locus $z_0$ and the quadratic dilaton profile slope $\kappa$. We concluded that in this model the $f_0(500)$ scalar resonance cannot be fitted holographycally as a $q\overline{q}$ state since we could not find a trajectory that included this pole. This result is in agreement with the most recent phenomenological and theoretical methods.

9 pages, no figures, new references added, typeset in revtex format

References in corpus (30)

• The Large N Limit of Superconformal Field Theories and Supergravity
• Linear Confinement and AdS/QCD
• ππscattering
• Glueball Spectrum and Matrix Elements on Anisotropic Lattices
• Meson-Meson interaction in a non-perturbative chiral approach
• Mesons in Gauge/Gravity Duals - A Review
• The pion-pion scattering amplitude. IV: Improved analysis with once subtracted Roy-like equations up to 1100 MeV
• From controversy to precision on the sigma meson: a review on the status of the non-ordinary $f_0(500)$ resonance
• Precise determination of the f0(600) and f0(980) pole parameters from a dispersive data analysis
• Light scalar mesons in the soft-wall model of AdS/QCD
• Chiral Symmetry Breaking in Soft-Wall AdS/QCD
• QCD/String holographic mapping and glueball mass spectrum
• Vacuum Properties of Mesons in a Linear Sigma Model with Vector Mesons and Global Chiral Invariance
• Scalar nonet quarkonia and the scalar glueball: mixing and decays in an effective chiral approach
• Is f0(1710) a glueball?
• Scalar Glueball, Scalar Quarkonia, and their Mixing
• The Glueball in a Chiral Linear Sigma Model with Vector Mesons
• Scalar meson and glueball decays within a effective chiral approach
• The QCD vacuum
• Hadrons in AdS / QCD correspondence
• Study of scalar mesons f_0(980) and f_0(1500) from $B\to f_0(980)K$ and $B\to f_0(1500)K$ Decays
• Decay constants in soft wall AdS/QCD revisited
• Generalized Soft Wall Model
• Holographic Picture of Heavy Vector Meson Melting
• Two-photon and one photon-one vector meson decay widths of the $f_0(1370)$, $f_2(1270)$, $f_0(1710)$, $f_2^{\prime }(1525)$, and $K_2^{\ast }(1430)$
• Modes with variable mass as an alternative in AdS / QCD models with chiral symmetry breaking
• Anomalous dimensions and scalar glueball spectroscopy in AdS/QCD
• A chiral symmetry breaking AdS / QCD model with scalar interactions
• Large-$N$ pion scattering at finite temperature: the $f_0(500)$ and chiral restoration
• Chiral Symmetry Restoration for the large-$N$ pion gas

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