TL;DR
This paper investigates the nature of QCD condensates within the AdS/QCD framework, examining issues of renormalization, scale dependence, and the physical interpretation of the 5D cosmological constant, linking it to the QCD gluon condensate.
Contribution
It provides insights into the consistency of AdS/QCD models for scale-dependent quantities and proposes a connection between the 5D cosmological constant and the QCD gluon condensate.
Findings
The cosmological constant in the model relates to the QCD gluon condensate.
The paper discusses the scale dependence of the chiral condensate in AdS/QCD.
Arguments are presented for the 5D cosmological constant's physical interpretation.
Abstract
This paper focuses on some issues about condensates and renormalization in AdS/QCD models. In particular we consider the consistency of the AdS/QCD approach for scale dependent quantities as the chiral condensate questioned in some recent papers and the 4D meaning of the 5D cosmological constant in a model in which the QCD is dual to a 5D gravity theory. We will be able to give some arguments that the cosmological constant is related to the QCD gluon condensate.
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Taxonomy
TopicsBlack Holes and Theoretical Physics · Particle physics theoretical and experimental studies · Cosmology and Gravitation Theories