Quark-gluon mixed condensate of the QCD vacuum in Holographic QCD
Hyun-Chul Kim, Youngman Kim
TL;DR
This paper uses a holographic QCD model to analyze the quark-gluon mixed condensate, successfully reproducing experimental data and aligning with QCD sum rule estimates.
Contribution
It introduces a holographic approach to model the quark-gluon mixed condensate, providing a new method to estimate this parameter within the AdS/QCD framework.
Findings
The model reproduces experimental data accurately.
The fixed mixed condensate value agrees with QCD sum rules.
The approach offers a new way to study QCD vacuum properties.
Abstract
We investigate the quark-gluon mixed condensate based on an AdS/QCD model. Introducing a holographic field dual to the operator for the quark-gluon mixed condensate, we obtain the corresponding classical equation of motion. Taking the mixed condensate as an additional free parameter, we show that the present scheme reproduces very well experimental data. A fixed value of the mixed condensate is in good agreement with that of the QCD sum rules.
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