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arXiv 2107.01441nucl-thhep-ph
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具有核子质量半径的新型中子星结构

Novel Neutron Star Structures with Nucleon Mass Radius

Wei Kou, Xiaopeng Wang, Xurong Chen

摘要:

为了揭示最新的中子星观测实验GW 170817与现有理论的差异,我们主要从现有理论出发,考虑核子半径对中子星的影响。我们认为,在中子星中核子半径的影响是不可忽略的,应该用核子的质量半径来代替电荷半径。根据新的测量结果,核子质量半径被设置为$r_m = 0.55\pm0.09$ fm。它被认为是核物质状态方程中“排除体积效应”模型的输入。我们利用质子质量半径提出了一个新的中子星质量半径关系,与观测结果GW170817一致。

英文摘要:

In order to reveal the difference between the latest neutron star observation experiment GW170817 and the existing theory, we mainly consider the effect of the nucleon radius on the neutron star from the existing theory. We believe that the effect of nucleon radius in neutron star is not negligible, and the mass radius of nucleon should be used instead of the charge radius. The nucleon mass radius is set as $r_m = 0.55\pm0.09$ fm from the new measurements. It is considered as an input to the "Excluded Volume Effects" model in the equation of state of nuclear matter. We propose a novel neutron star mass-radius relation by using proton mass radius is consistent with the observation GW170817.

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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