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Keywords = color-singletness constraint

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7 pages, 914 KB  
Proceeding Paper
Finite-Size Effects on the Density-Driven Deconfinement Phase Transition in Quantum Chromodynamics
by Bachir Moussaoui, Amal Ait El Djoudi and Mohamed Amine Lakehal
Phys. Sci. Forum 2026, 14(1), 4; https://doi.org/10.3390/psf2026014004 (registering DOI) - 18 Jun 2026
Abstract
We investigate finite-size effects on the density-driven deconfinement phase transition in Quantum Chromodynamics (QCD) using a phase coexistence model of hadronic and quark–gluon plasma (QGP) phases in a finite size. The QGP is described via the MIT bag model, incorporating the color-singletness constraint [...] Read more.
We investigate finite-size effects on the density-driven deconfinement phase transition in Quantum Chromodynamics (QCD) using a phase coexistence model of hadronic and quark–gluon plasma (QGP) phases in a finite size. The QGP is described via the MIT bag model, incorporating the color-singletness constraint to enforce exact color neutrality. In this study, we analyze the first- and second-order derivatives of the order parameter, defined as the mean hadronic volume fraction h , with respect to the quark chemical potential ( μ ) at fixed temperature ( T ) and for several system volumes V , to identify the effective transition point. Our results show that the effective quark chemical potential μ c ( V ) increases as the volume decreases, and the transition becomes progressively smoother, with a width δ μ ( V ) that broadens with decreasing volume. Full article
(This article belongs to the Proceedings of The 3rd International Online Conference on Universe)
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