Interacting ud and uds quark matter at finite densities and quark stars

被引：20

作者：

Yuan, Wen-Li ^{[1
,2
]}

Li, Ang ^{[2
]}

Miao, Zhiqiang ^{[2
]}

Zuo, Bingjun ^{[1
]}

Bai, Zhan ^{[3
]}

机构：

[1] Nanjing Univ, Dept Phys, Nanjing 210093, Peoples R China

[2] Xiamen Univ, Dept Astron, Xiamen 361005, Fujian, Peoples R China

[3] Chinese Acad Sci, Inst Theoret Phys, Beijing 100190, Peoples R China

来源：

PHYSICAL REVIEW D | 2022年 / 105卷 / 12期

基金：

中国国家自然科学基金;

关键词：

EQUATION-OF-STATE; STRANGE STARS; NEUTRON-STARS; BAYESIAN-INFERENCE; VECTOR-INTERACTION; MODEL; MASS; PHENOMENOLOGY; CONVERSION; MECHANISM;

D O I：

10.1103/PhysRevD.105.123004

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The stability and equation of state of quark matter are studied within both two-flavor and (2 + 1)-flavor Nambu-Jona-Lasinio (NJL) models including the vector interactions. With a free parameter alpha, the Lagrangian is constructed by two parts, the original NJL Lagrangian and the Fiery transformation of it, as L = (1 - alpha)L-NJL + alpha L-Fierz. We find that there is a possibility for both ud nonstrange and uds strange matter being absolute stable, depending on the interplay of the confinement with quark vector interaction and the exchange interaction channels. The calculated quark star properties can reconcile with the recently measured masses and radii of PSR J0030 + 0451 and PSR J0740 + 6620, as well as the tidal deformability of GW170817. Furthermore, the more strongly interacting quark matter in the nonstrange stars allows a stiffer equation of state and consequently a higher maximum mass (similar to 2.7 M-circle dot) than the strange ones (similar to 2.1 M-circle dot). The sound velocities in strange and nonstrange quark star matter are briefly discussed compared to those of neutron star matter.

引用

页数：14

共 114 条

[1] GW170817: Measurements of Neutron Star Radii and Equation of State [J].

Abbott, B. P. ;

Abbott, R. ;

Abbott, T. D. ;

Acernese, F. ;

Ackley, K. ;

Adams, C. ;

Adams, T. ;

Addesso, P. ;

Adhikari, R. X. ;

Adya, V. B. ;

Affeldt, C. ;

Agarwal, B. ;

Agathos, M. ;

Agatsuma, K. ;

Aggarwal, N. ;

Aguiar, O. D. ;

Aiello, L. ;

Ain, A. ;

Ajith, P. ;

Allen, B. ;

Allen, G. ;

Allocca, A. ;

Aloy, M. A. ;

Altin, P. A. ;

Amato, A. ;

Ananyeva, A. ;

Anderson, S. B. ;

Anderson, W. G. ;

Angelova, S. V. ;

Antier, S. ;

Appert, S. ;

Arai, K. ;

Araya, M. C. ;

Areeda, J. S. ;

Arene, M. ;

Arnaud, N. ;

Arun, K. G. ;

Ascenzi, S. ;

Ashton, G. ;

Ast, M. ;

Aston, S. M. ;

Astone, P. ;

Atallah, D. V. ;

Aubin, F. ;

Aufmuth, P. ;

Aulbert, C. ;

AultONeal, K. ;

Austin, C. ;

Avila-Alvarez, A. ;

Babak, S. .

PHYSICAL REVIEW LETTERS, 2018, 121 (16)

[2] GW170104: Observation of a 50-Solar-Mass Binary Black Hole Coalescence at Redshift 0.2 (vol 118, 221101, 2017) [J].

Abbott, B. P. .

PHYSICAL REVIEW LETTERS, 2018, 121 (12)

[3] Hadron-Quark Phase Transition in the SU (3) Local Nambu-Jona-Lasinio (NJL) Model with Vector Interaction [J].

Alaverdyan, Grigor .

SYMMETRY-BASEL, 2021, 13 (01) :1-16

[4] Tidal deformability of quark stars with repulsive interactions [J].

Albino, M. B. ;

Fariello, R. ;

Navarra, F. S. .

PHYSICAL REVIEW D, 2021, 104 (08)

[5] MODEL FOR THE 5 MARCH 1979 GAMMA-RAY TRANSIENT [J].

ALCOCK, C ;

FARHI, E ;

OLINTO, A .

PHYSICAL REVIEW LETTERS, 1986, 57 (16) :2088-2091

[6] Burning of two-flavor quark matter into strange matter in neutron stars and in supernova cores [J].

Anand, JD ;

Goyal, A ;

Gupta, VK ;

Singh, S .

ASTROPHYSICAL JOURNAL, 1997, 481 (02) :954-962

[7] Unexplained sets of seismographic station reports and a set consistent with a quark nugget passage [J].

Anderson, DP ;

Herrin, ET ;

Teplitz, VL ;

Tibuleac, IM .

BULLETIN OF THE SEISMOLOGICAL SOCIETY OF AMERICA, 2003, 93 (06) :2363-2374

[8]

Antic S., ARXIV210500029

[9] A Massive Pulsar in a Compact Relativistic Binary [J].

Antoniadis, John ;

Freire, Paulo C. C. ;

Wex, Norbert ;

Tauris, Thomas M. ;

Lynch, Ryan S. ;

van Kerkwijk, Marten H. ;

Kramer, Michael ;

Bassa, Cees ;

Dhillon, Vik S. ;

Driebe, Thomas ;

Hessels, Jason W. T. ;

Kaspi, Victoria M. ;

Kondratiev, Vladislav I. ;

Langer, Norbert ;

Marsh, Thomas R. ;

McLaughlin, Maura A. ;

Pennucci, Timothy T. ;

Ransom, Scott M. ;

Stairs, Ingrid H. ;

van Leeuwen, Joeri ;

Verbiest, Joris P. W. ;

Whelan, David G. .

SCIENCE, 2013, 340 (6131) :448

[10] Identifying QCD Phase Transitions via the Gravitational Wave Frequency from a Supernova Explosion [J].

Bai, Zhan ;

Fu, Wei-jie ;

Liu, Yu-xin .

ASTROPHYSICAL JOURNAL, 2021, 922 (02)

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