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Confront Holographic QCD with Regge Trajectories of vectors and axial-vectors
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abstract
We derive the general 5-dimension metric structure of the $Dp-Dq$ system in type II superstring theory, and demonstrate the physical meaning of the parameters characterizing the 5-dimension metric structure of the \textit{holographic} QCD model by relating them to the parameters describing Regge trajectories. By matching the spectra of vector mesons $\rho_1$ with deformed $Dp-Dq$ soft-wall model, we find that the spectra of vector mesons $\rho_1$ can be described very well in the soft-wall $D3-Dq$ model, i.e, $AdS_5$ soft-wall model. We then investigate how well the $AdS_5$ soft-wall model can describe the Regge trajectory of axial-vector mesons $a_1$. We find that the constant component of the 5-dimension mass square of axial-vector mesons plays an efficient role to realize the chiral symmetry breaking in the vacuum, and a small negative $z^4$ correction in the 5-dimension mass square is helpful to realize the chiral symmetry restoration in high excitation states.
Forward citations
Cited by 4 Pith papers
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Proton Structure from a Soft-Wall Holographic QCD Model: Mass Spectrum, Form Factors, and Mechanical Properties
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Thermodynamics of Heavy Quarkonium in a Bayesian Holographic QCD model
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The nucleon structure from an AdS/QCD model in the Veneziano limit
Using the VQCD holographic model, the authors compute four sets of proton observables that match experiment and lattice data, but many inputs are fitted rather than predicted.
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Quarkyonic phase from quenched dynamical holographic QCD model
In the quenched dynamical holographic QCD model, the chiral and deconfinement transitions separate in the (T, mu) plane, producing a chiral critical endpoint and a quarkyonic window.
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