Hybrid stars within the framework of the Sigma-Omega-Rho model combined with the MIT and NJL models

H. R. Moshfegh; Reza Karimi

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Hybrid stars within the framework of the Sigma-Omega-Rho model combined with the MIT and NJL models

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arxiv 2212.06375 v1 pith:J5OYX2EW submitted 2022-12-13 nucl-th astro-ph.HEhep-ph

Reza Karimi , H. R. Moshfegh This is my paper · ORCID

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abstract

In this paper, we investigate the structure of hybrid stars consisting of hadrons (neutrons, protons, sigmas, lambdas), leptons (electrons, muons), and quarks (up, down, strange). We use a relativistic mean-field (RMF) model namely the Sigma-omega-rho model for the hadronic phase and the MIT bag model as well as the NJL model for the quark phase. In addition, Maxwell and Gibbs conditions are employed to investigate the hadron-Quark phase transition. Finally, by obtaining the mass-radius relation, $ M (M_{sun}) \leqslant 2.07 $ is predicted for such hybrid stars.

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