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Density-dependent quark mass model revisited: thermodynamic consistency, stability windows and stellar properties
Journal of Physics G: Nuclear and Particle Physics ( IF 3.5 ) Pub Date : 2021-04-13 , DOI: 10.1088/1361-6471/abc6e9
Betnia C Backes 1 , Eduardo Hafemann 2 , Isabella Marzola 1 , Dbora P Menezes 1
Affiliation  

In this work a density-dependent quark model is revisited, its thermodynamic consistency checked and the stability window for absolutely stable quark matter obtained. The hypotheses of both pure quark matter with equal quark chemical potentials and stellar matter subject to chemical stability and charge neutrality are investigated. The parameters that appear in the density-dependent mass and satisfy the Bodmer–Witten conjecture are then used to compute the masses and radii of strange stars. We show that the obtained values are compatible with the recently observed massive stars.



中文翻译:

重新审视与密度相关的夸克质量模型:热力学一致性、稳定性窗口和恒星属性

在这项工作中,重新审视了密度相关夸克模型,检查了其热力学一致性,并获得了绝对稳定夸克物质的稳定性窗口。研究了具有相等夸克化学势的纯夸克物质和受化学稳定性和电荷中性影响的恒星物质的假设。出现在与密度相关的质量中并满足 Bodmer-Witten 猜想的参数然后用于计算奇异恒星的质量和半径。我们表明获得的值与最近观察到的大质量恒星兼容。

更新日期:2021-04-13
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