Chiral and deconfinement transitions in spin-polarized quark matter
Year: 2025
Type: article
Abstract: We investigate the influence of spin polarization in strongly interacting matter by introducing a finite spin potential, μ Σ , which effectively controls the spin density of the system without requiring rotation or specific boundary conditions. Inspired by recent lattice QCD simulations that incorporated such a potential, we implement this approach within an effective QCD framework. Our results show that increasing spin polarization leads to a simultaneous decrease in both the chiral and deconfinement restoration temperatures. The resulting phase structure is qualitatively consistent with lattice findings, and notably, we observe the emergence of a first-order chiral phase transition at low temperature. These results suggest that spin-polarized environments can significantly impact the QCD phase diagram and offer a controlled route for studying spin effects in hot and dense matter.
DOI: 10.1103/5znc-7ztg
Authors: Ricardo L. S. Farias, William R. Tavares
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
Funders: Conselho Nacional de Desenvolvimento Científico e Tecnológico, Fundação de Amparo à Pesquisa do Estado do Rio Grande do Sul, Fundação Carlos Chagas Filho de Amparo à Pesquisa do Estado do Rio de Janeiro, Instituto Serrapilheira, Instituto Nacional de Ciência e Tecnologia: Física Nuclear e Aplicações
OpenAlex ID: W4414630905