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The chiral condensate in holographic models of QCD
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The chiral condensate in holographic models of QCD
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Bottom-up holographic models of QCD, inspired by the AdS/CFT correspondence, have shown a remarkable degree of phenomenological success. However, they rely on a number of bold assumptions. We investigate the reliability of one of the key assumptions, which involves matching the parameters of these models to QCD at high 4D momentum $q^2$ and renormalization scale $\mu^2$. We show that this leads to phenomenological and theoretical inconsistencies for scale-dependent quantities such as $\bra \bar{q}q\ket$
Forward citations
Cited by 2 Pith papers
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Solution of the boundary problem for the axial-vector field in the hard-wall AdS/QCD model
A new iterative scheme using conjugate equations and necessary conditions for Fredholm solvability is developed to solve the boundary problem for the axial-vector field in the hard-wall AdS/QCD model.
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Probing the chiral and $U(1)$ axial symmetry restoration via meson susceptibilities in holographic QCD
In a soft-wall holographic QCD model, chiral symmetry restores at ~155 MeV while the U(1) axial symmetry restores near 190 MeV — a separation the authors present despite an admitted mismatch with lattice QCD below 175 MeV.
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