| THE PHYSICS OF ELEMENTARY PARTICLES AND FIELDS |
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The Renormalized Equation of State and Quark Star |
| LI Hua1, LUO Xin-Lian2, JIANG Yu1, ZONG Hong-Shi1,3** |
1Department of Physics, Nanjing University, Nanjing 210093
2Department of Astronomy, Nanjing University, Nanjing 210093
3Joint Center for Particle, Nuclear Physics and Cosmology, Nanjing 210093
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| Cite this article: |
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LI Hua, LUO Xin-Lian, JIANG Yu et al 2010 Chin. Phys. Lett. 27 121202 |
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Abstract By means of the EOS of QCD at zero temperature and finite quark chemical potential we proposed [Phys. Rev. D 78 (2008) 054001] in the framework of rainbow-ladder approximation of Dyson–Schwinger approach, we investigate the structure of quark star and its property. It is found that the mass-radius relation in our model is very different from that of usual quark star models, but similar to neutron star models. The obtained mass of quark star is about 1.75Mʘ ∼ 2.2Mʘ. The obtained radius of quark star is 22∼26 km, which is obviously larger than the results in other models. The reason for this discrepancy is analyzed.
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| Keywords:
12.38.Lg
21.65.Qr
26.60.Kp
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Received: 05 August 2010
Published: 23 November 2010
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| PACS: |
12.38.Lg
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(Other nonperturbative calculations)
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21.65.Qr
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(Quark matter)
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26.60.Kp
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(Equations of state of neutron-star matter)
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