Quarks and Compact Stars (QCS)
Oct. 20-22, 2014, KIAA at Peking University, Beijing - P. R. China

The structure of strange stars with a new quark mass scaling

Cheng-Jun Xia

Institute of Theoretical Physics, Chinese Academy of Sciences

Abstract: Based on the fully self-consistent thermodynamic treatment, we have obtained a new quark mass scaling with the inclusion of both confinement and leading-order perturbative interactions by expanding the equivalent mass to a Laurant series and taking the leading term in both directions. The properties of strange quark matter (SQM) and strange stars are studied by applying the newly obtained quark mass scaling and self-consistent thermodynamic treatment. We find that the equation of state becomes stiffer when the perturbative interactions are considered and, correspondingly, the maximum mass of strange stars is as large as two times the solar mass if SQM is absolutely or metastable.