Quark Stars Investigated using an Improved Quasi-Particle Model
YAN Yan1 , CAO Jing2 , LUO Xin-Lian2 , SUN Wei-Min3 , ZONG Hong-Shi3**
1 Department of Physics, Nanjing University, Nanjing 2100932 Department of Astronomy, Nanjing University, Nanjing 2100933 Joint Center for Particle, Nuclear Physics and Cosmology, Nanjing 210093
Abstract ：The equation of state (EOS) of cold and dense strongly interacting matter is crucial for better research of compact stars, i.e., neutron stars and quark stars. We generalize our improved quasi-particle model from finite temperature and zero chemical potential [Phys. Lett. B 711 (2012) 65 ] to the case of zero temperature and finite chemical potential to obtain an EOS of our improved quasi-particle model and then apply this EOS to study the structure of a quark star. The results are consistent with the most recent astronomical observational data.
收稿日期: 2012-06-26
出版日期: 2012-10-01
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2012, Vol. 29 
