What question did this study set out to answer?

This research aims to establish a connection between baryonic matter and QCD deconfinement density through the radion.

May 26, 2026Open Access

P62: The Radion-Baryon Coupling Problem — Why ρc = 7.4 ρnuc Coincides with QCD Deconfinement

Puntos clave

This research aims to establish a connection between baryonic matter and QCD deconfinement density through the radion.
Partial derivation via AdS/QCD to explore the mechanism.
Establishes constraints on the density scale from hadronic models and lattice QCD.
Documents the challenge of determining the exact value from the DBI radion-baryon coupling constant.
The density scale ρc = 7.4 ρnuc coincides with QCD deconfinement density.
Constrains ρc to a range of [5, 10] ρnuc based on theoretical frameworks.
Identification suggests a physical relationship rather than a mere numerical coincidence.

Resumen

The CCEGA density scale ρc = 7.4 ρnuc coincides with the QCD deconfinement density predicted by lattice QCD (5–10 ρnuc). We argue this is a physical identification, not a numerical coincidence: the radion saturates when baryonic matter undergoes QCD deconfinement. A partial derivation via AdS/QCD establishes the mechanism structurally and constrains ρc ∈ 5, 10 ρnuc from hadronic models and lattice QCD. The remaining open problem — fixing the exact value from the DBI radion-baryon coupling constant — is documented explicitly. If solved, CCEGA would have no free parameters.

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