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Strangeons constitute strong matter in bulk: To test using GW170817

Lai, X., Zhou, E., & Xu, R. (2019). Strangeons constitute strong matter in bulk: To test using GW170817. The European Physical Journal A, 55(4): 60. doi:10.1140/epja/i2019-12720-8.

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Genre: Journal Article

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1811.00193.pdf (Preprint), 143KB
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StrangeonsConstituteBulkStrong.pdf (Publisher version), 407KB

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Creators:
Lai, Xiaoyu, Author
Zhou, Enping1, Author
Xu, Renxin, Author
Affiliations:
1AEI-Golm, MPI for Gravitational Physics, Max Planck Society, Golm, DE, ou_24008

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Free keywords: Astrophysics, High Energy Astrophysical Phenomena, astro-ph.HE,High Energy Physics - Phenomenology, hep-ph
Abstract: The fundamental strong interaction determines the nature of pulsar-like compact stars which are essentially in the form of strong matter in bulk. From an observational point of view, it is proposed that strong matter in bulk could be composed of strangeons, i.e. quark-clusters with there-light-flavor symmetry of quarks, and therefore pulsar-like compact objects could actually be strangeon stars. The equation of state (EOS) of strangeon stars is described in a Lennard-Jones model for the purpose of constraining the EOS by both the tidal deformability $\Lambda$ of GW~170817 and $M_{\rm TOV}$. It is found that the allowed parameter space is quite large as most of the Lennard-Jones EOS models satisfy the tidal deformability constraint by GW170817. The future GW detections for smaller values of $\Lambda$ and mass measurement for larger values of $M_{\rm TOV}$ will help a better constraint on the strangeon star model.

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Dates: 2018-10-312019
Publication Status: Published in print
Pages: For the EPJA Topical Issue "The first Neutron Star Merger Observation - Implications for Nuclear Physics"
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Identifiers: arXiv: 1811.00193
URI: http://arxiv.org/abs/1811.00193
DOI: 10.1140/epja/i2019-12720-8
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Title: The European Physical Journal A
Source Genre: Journal
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Pages: - Volume / Issue: 55 (4) Sequence Number: 60 Start / End Page: - Identifier: -