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arXiv 2006.07983hep-thgr-qcnucl-th
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广义Skyrme模型的一个新的相容中子星状态方程

A new consistent Neutron Star Equation of State from a Generalized Skyrme model

Christoph Adam, Alberto García Martín-Caro, Miguel Huidobro García, Ricardo Vázquez, Andrzej Wereszczynski

摘要:

我们提出了一个新的状态方程的核物质的基础上推广的Skyrme模型,这是符合所有目前的约束下观测到的中子星的性质。这种广义模型只依赖于两个自由参数的压力值的范围内,在不同的子模型是占主导地位的,并可以调整,使质量半径和变形的天体物理和引力波测量的约束,可以满足。我们的研究结果支持Skyrme模型和它的推广作为一个很好的候选人的低能量有效的场论描述的核物质,即使在极端条件下,如那些内中子星。

英文摘要:

We propose a new equation of state for nuclear matter based on a generalized Skyrme model which is consistent with all current constraints on the observed properties of neutron stars. This generalized model depends only on two free parameters related to the ranges of pressure values at which different submodels are dominant, and which can be adjusted so that mass-radius and deformability constraints from astrophysical and gravitational wave measurements can be met. Our results support the Skyrme model and its generalizations as good candidates for a low energy effective field-theoretic description of nuclear matter even at extreme conditions such as those inside neutron stars.

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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