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arXiv 2208.09331nucl-thastro-ph.SRhep-ph
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重子重叠的致密核物质

Dense Nuclear Matter with Baryon Overlap

Jesper Leong, Theo F. Motta, Anthony W. Thomas, P. A. M. Guichon

摘要:

新的短程物理适用于内部的核NS的可能性被纳入夸克介子耦合模型产生的状态方程。这种新物理学对能量密度的贡献被认为与所涉及的重子的夸克核之间的重叠量成正比。在饱和密度下对称核物质的性质没有改变的情况下,包括与巨磁共振数据相一致的不可压缩性,人们可以维持最大质量为$M_{max}>2.1$ M $_\odot$的中子星,即使包括超子。

英文摘要:

The possibility of new short-distance physics applicable inside the cores of NS is incorporated into the equation of state generated by the quark-meson coupling model. The contribution of this new physics to the energy density is taken to be proportional to the amount of overlap between the quark cores of the baryons involved. With no change to the properties of symmetric nuclear matter at saturation density, including an incompressibility compatible with data on giant monopole resonances, one can sustain neutron stars with a maximum mass $M_{max}>2.1$ M$_\odot$, even when hyperons are included.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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