Effects of quark-matter symmetry energy on hadron-quark coexistence in neutron-star matter

Akira Ohnishi; Hong Shen; Xuhao Wu

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Effects of quark-matter symmetry energy on hadron-quark coexistence in neutron-star matter

Xuhao Wu, Akira Ohnishi, Hong Shen

Nuclear Theory · Submitted 11 Jun 2018

abstract compiled · 2026-09-23 · no language-model review

The authors' main claim As a result, the hadron-quark mixed phase shrinks with only isovector-vector coupling and moves to higher density with isovector-vector and hypercharge-vector couplings.

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arXiv ID1806.03760 (version 2)

Pith ID36J4OVUQ, Pith's permanent record of this paper and its review

CitationAkira Ohnishi, Hong Shen, Xuhao Wu. "Effects of quark-matter symmetry energy on hadron-quark coexistence in neutron-star matter." arXiv:1806.03760 (2018). https://pith.science/paper/36J4OVUQ

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The paper's own sentences, arranged. Each label is drawn from a closed vocabulary; the number beside it is the probability the classifier gave that label. Numbers in the tables are the authors', checked by code. No sentence in this record was written by a model.

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Compiled by classifier-1.13.0 via TypeSafe API, question bank abstract-p1-20260923, 2026-09-23: 1 request, 5,085 input tokens.

What the abstract itself states, as probabilities: claims first 0.02 · states limitation 0.25 · human participants 0.01 · controlled comparison 0.47 · randomized assignment 0.01 · states quantitative result 0.08 · compares with prior results 0.38 · mentions code or data availability 0.02.

The abstract, sentence by sentence

arXiv listing abstract v2. Results and the main claim are underlined; show every role.

We examine the effects of the isovector-vector coupling and hypercharge-vector coupling in quark matter on hadron-quark coexistence in neutron-star matter. The relativistic mean field theory with the TM1 parameter set and an extended TM1 parameter set are used to describe hadronic matter, and the Nambu-Jona-Lasinio model with scalar, isoscalar-vector, isovector-vector and hypercharge-vector couplings is used to describe deconfined quark matter. The hadron-quark phase transition is constructed via the Gibbs conditions for phase equilibrium. The isovector-vector and hypercharge-vector couplings in quark matter enhance the symmetry energy and hypercharge symmetry energy in neutron-star matter, while their effects are found to be suppressed at high densities by the strange quarks. As a result, the hadron-quark mixed phase shrinks with only isovector-vector coupling and moves to higher density with isovector-vector and hypercharge-vector couplings. The maximum mass of neutron-star increases slightly with isovector-vector and hypercharge-vector couplings.

background contribution method result interpretation main claim

What the classifier reports for each sentence. The number is the probability it gave the label.
#	sentence	role	the authors' own work	states the main conclusion	strength
s0	We examine the effects of the isovector-vector coupling and hypercharge-vector coupling in quark matter on hadron-quark coexistence in neutron-star matter.	contribution 0.99	0.89	0.07	unclear 0.51
s1	The relativistic mean field theory with the TM1 parameter set and an extended TM1 parameter set are used to describe hadronic matter, and the Nambu-Jona-Lasinio model with scalar, isoscalar-vector, isovector-vector and hypercharge-vector couplings is used to describe deconfined quark matter.	method 1.00	0.62	0.03	asserted 0.99
s2	The hadron-quark phase transition is constructed via the Gibbs conditions for phase equilibrium.	method 1.00	0.83	0.03	asserted 1.00
s3	The isovector-vector and hypercharge-vector couplings in quark matter enhance the symmetry energy and hypercharge symmetry energy in neutron-star matter, while their effects are found to be suppressed at high densities by the strange quarks.	result 0.99	0.92	0.36	asserted 1.00
s4	As a result, the hadron-quark mixed phase shrinks with only isovector-vector coupling and moves to higher density with isovector-vector and hypercharge-vector couplings.	result 0.97	0.92	0.46	asserted 1.00
s5	The maximum mass of neutron-star increases slightly with isovector-vector and hypercharge-vector couplings.	result 1.00	0.92	0.19	asserted 1.00

What kind of paper the classifier reports this is: simulation study 0.53 · evidence from simulation or computation 0.98.

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Every quoted sentence on this record is the authors'. Every label is from Pith's closed vocabulary, with the probability shown beside it. Every number in the measurements table is the authors', checked by code. Record as JSON

The paper

Original abstract

We examine the effects of the isovector-vector coupling and hypercharge-vector coupling in quark matter on hadron-quark coexistence in neutron-star matter. The relativistic mean field theory with the TM1 parameter set and an extended TM1 parameter set are used to describe hadronic matter, and the Nambu-Jona-Lasinio model with scalar, isoscalar-vector, isovector-vector and hypercharge-vector couplings is used to describe deconfined quark matter. The hadron-quark phase transition is constructed via the Gibbs conditions for phase equilibrium. The isovector-vector and hypercharge-vector couplings in quark matter enhance the symmetry energy and hypercharge symmetry energy in neutron-star matter, while their effects are found to be suppressed at high densities by the strange quarks. As a result, the hadron-quark mixed phase shrinks with only isovector-vector coupling and moves to higher density with isovector-vector and hypercharge-vector couplings. The maximum mass of neutron-star increases slightly with isovector-vector and hypercharge-vector couplings.

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References

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9 arXiv papers cite this in 11 sentences

Each citing sentence is taken from the citing paper's LaTeX source and typed by Pith's classifier. A label appears at probability 0.8 or more (0.95 for support), a contest at 0.7 or more; the quoted words are the citing authors'. How each label was checked · JSON

Papers citing it · 7 sentences without a confident label

Cites it as background 4 papers

According to literature, the main mechanisms to solve such puzzles are (i) considering the effect of repulsive hyperon-hyperon interaction via exchange of vector mesons [ref] or scalar meson exchange [ref] , (ii) inclusion of repulsive hyperonic three-body forces [ref] , (iii) effect of phase transition from hadronic to deconfined quark matter [ref] , (iv) calculating NS properties with modified/extended theories of gravity [ref] .

Deconfinement of non-strange hadronic matter with nucleons and $\Delta$ baryons to quark matter in neutron stars · Introduction · 0.93
Apart from the hadron-quark phase transition [ref] or the hyperon-hyperon interaction via exchange of vector mesons [ref] or scalar mesons [ref] , there are many recent paradigm associated with modifications/extensions to the normal General Relativity (GR) theory to resolve the hyperon and the $Δ$ puzzles.

Role of $\Delta$s in determining the properties of Neutron Stars in parameterized hydrostatic equilibrium · Introduction · 0.96
Quark vector-isoscalar and vector-isovector couplings have been used in the NJL model [ref] , 2-flavor confining QM (CQM) model [ref] , FRG within a quark-meson model [ref] , quark-meson-nucleon (QMN) model [ref] , and bag model [ref] .

GW190814 as a massive rapidly-rotating neutron star with exotic degrees of freedom · Introduction · 0.93

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