Abstract
We introduce the 5-dimension dynamical holographic QCD model, which is constructed in the graviton-dilaton-scalar framework with the dilaton background field $\Phi$ and the scalar field $X$ responsible for the gluodynamics and chiral dynamics, respectively. We review our results on the hadron spectra including the glueball and light meson spectra, QCD phase transitions and transport properties in the framework of the dynamical holographic QCD model.
Highlights
Quantum chromodynamics (QCD) is the fundamental theory of strong interaction
I give a brief review on the dynamical holographic QCD (DhQCD) model recently developed in our group
We report our DhQCD model which is constructed in the graviton-dilaton-scalar framework, where the dilaton background field and scalar field are responsible for the gluodynamics and chiral dynamics, respectively
Summary
Quantum chromodynamics (QCD) is the fundamental theory of strong interaction. In the infrared (IR) regime, it remains as an outstanding challenge of solving nonperturbative QCD physics, e.g. the chiral symmetry breaking and color confinement. The extra dimension can be regarded as an energy scale or renormalization group (RG) flow in the QFT [4]. In this talk, I give a brief review on the dynamical holographic QCD (DhQCD) model recently developed in our group. The DhQCD model is constructed in the graviton-dilaton-scalar framework, and it resembles the renormalization group from ultraviolet (UV) to infrared (IR). The dilaton background field Φ(z) and the scalar field X(z) are dual to the gluon operator and the quark operator at the UV boundary, and in the IR region, the dilaton background field and scalar field are responsible for nonperturbative gluodynamics and chiral dynamics, respectively. I give a summary of our results on hadron spectra, QCD phase transitions, equation of state and transport properties in the framework of DhQCD model
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