Isoscalar-vector interaction and hybrid quark core in massive neutron stars
文献类型：期刊论文
| 作者 | Shao, G. Y.1; Colonna, M.2; Di Toro, M.2,3; Liu, Y. X.4,5,6; Liu, B.7,8 |
| 刊名 | PHYSICAL REVIEW D
 |
| 出版日期 | 2013-05-17 |
| 卷号 | 87 |
| ISSN号 | 1550-7998 |
| DOI | 10.1103/PhysRevD.87.096012 |
| 文献子类 | Article |
| 英文摘要 | The hadron-quark phase transition in the core of massive neutron stars is studied with a newly constructed two-phase model. For nuclear matter, a nonlinear Walecka type model with general nucleon-meson and meson-meson couplings, recently calibrated by Steiner, Hemper and Fischer, is taken. For quark matter, a modified Polyakov-Nambu-Jona-Lasinio model, which gives consistent results with lattice QCD data, is used. Most importantly, we introduce an isoscalar-vector interaction in the description of quark matter, and we study its influence on the hadron-quark phase transition in the interior of massive neutron stars. With the constraints of neutron star observations, our calculation shows that the isoscalar-vector interaction between quarks is indispensable if massive hybrids star exist in the universe, and its strength determines the onset density of quark matter, as well as the mass-radius relations of hybrid stars. Furthermore, as a connection with heavy-ion-collision experiments we give some discussions about the strength of isoscalar-vector interaction and its effect on the signals of hadron-quark phase transition in heavy-ion collisions, in the energy range of the NICA at JINR-Dubna and FAIR at GSI-Darmstadt facilities. |
| WOS关键词 | EQUATION-OF-STATE ; JONA-LASINIO MODEL ; QUANTUM CHROMODYNAMICS ; PHASE-TRANSITION ; DENSE MATTER ; RADIUS ; MASSES |
| 资助项目 | National Natural Science Foundation of China[11147144] ; National Natural Science Foundation of China[11075037] |
| WOS研究方向 | Astronomy & Astrophysics ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000319207600003 |
| 出版者 | AMER PHYSICAL SOC |
| 源URL | [http://119.78.100.186/handle/113462/48557]  |
| 专题 | 中国科学院近代物理研究所 |
| 通讯作者 | Shao, G. Y. |
| 作者单位 | 1.Xi An Jiao Tong Univ, Dept Appl Phys, Xian 710049, Peoples R China 2.INFN Lab Nazl Sud, I-95123 Catania, Italy 3.Univ Catania, Dept Phys & Astron, I-95123 Catania, Italy 4.Peking Univ, Dept Phys, Beijing 100871, Peoples R China 5.Peking Univ, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China 6.Natl Lab Heavy Ion Accelerator, Ctr Theoret Nucl Phys, Lanzhou 730000, Peoples R China 7.Chinese Acad Sci, Inst High Energy Phys, Beijing 100049, Peoples R China 8.Chinese Acad Sci, Theoret Phys Ctr Sci Facil, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Shao, G. Y.,Colonna, M.,Di Toro, M.,et al. Isoscalar-vector interaction and hybrid quark core in massive neutron stars[J]. PHYSICAL REVIEW D,2013,87. |
| APA | Shao, G. Y.,Colonna, M.,Di Toro, M.,Liu, Y. X.,&Liu, B..(2013).Isoscalar-vector interaction and hybrid quark core in massive neutron stars.PHYSICAL REVIEW D,87. |
| MLA | Shao, G. Y.,et al."Isoscalar-vector interaction and hybrid quark core in massive neutron stars".PHYSICAL REVIEW D 87(2013). |
入库方式： OAI收割
来源：近代物理研究所
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