المجلد الخامس عشر
Basic and Applied Sciences Journal
quantum chromodynamics, general relativity, quark confinement, strong coupling, hadron physics, modified field equations
![We present a novel theoretical framework that investigates quark confinement through the conceptual lens of “charged micro-universes,” establishing a bridge between quantum chromodynamics (QCD) and general relativity (GR). We develop a refined strong coupling constant (α) incorporating the QCD string tension (σ), confinement radius (r), and charge (Q), with a logarithmic damping term mimicking the running behavior of α_s. This formulation yields α∝r^2/[1+βln(r^2/r_0^2 )] with a subdominant charge modification term ∝Q^2/(r[1+βln(r^2/r_0^2 )]). The resulting energy spectrum successfully reproduces experimental meson masses across light- and heavy-quark sectors, with systematic correlations between model parameters and physical observables. We demonstrate that our approach naturally captures the inverse relationship between hadron size and mass while identifying clear pathways for extending the model to accommodate baryons, flavor dependencies, and spin effects. This work suggests that interpreting hadrons as confined spacetime regions with modified field dynamics, offers meaningful insights into strong interaction phenomenology.](/sites/journals.kku.edu.sa/files/inline-images/%D9%84%D9%82%D8%B7%D8%A9%20%D8%B4%D8%A7%D8%B4%D8%A9%202025-07-20%20001332.png)
Investigating the Role of Strong Coupling in Quark Confinement as Charged Micro-Universes