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Surface and curvature tensions of cold quark matter in the SU(3)f NJL model with vector interactions

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Autor(es):
Villafane, M. F. Izzo ; Lugones, G. ; Grunfeld, A. G.
Número total de Autores: 3
Tipo de documento: Artigo Científico
Fonte: ASTRONOMISCHE NACHRICHTEN; v. 345, n. 2-3, p. 7-pg., 2023-12-14.
Resumo

We investigate the surface and curvature tensions of three-flavor cold quark matter in a state of electric charge neutrality and chemical equilibrium under weak interactions, employing the Nambu-Jona-Lasinio model with the inclusion of vector interactions. To account for finite-size effects we adopt the multiple-reflection expansion framework and present our results for various input parameters. Our results indicate that both surface and curvature tensions increase with heightened vector interactions and density. Furthermore, we note that the restoration of chiral symmetry in the strange quark sector leads to a modest reduction in curvature tension and a substantial increase in surface tension. (AU)

Processo FAPESP: 22/02341-9 - Equação de estado da matéria sob condições extremas: modelos e aplicações
Beneficiário:Germán Lugones
Modalidade de apoio: Auxílio à Pesquisa - Regular