%A Zhao Xian-Feng (赵先锋), Jia Huan-Yu (贾焕玉) %T A set of new nucleon coupling constants and the proto neutron star matter %0 Journal Article %D 2012 %J Chin. Phys. B %R 10.1088/1674-1056/21/8/089701 %P 89701-089701 %V 21 %N 8 %U {https://cpb.iphy.ac.cn/CN/abstract/article_113978.shtml} %8 2012-07-01 %X Using a new set of nucleon coupling constants CZ11 the properties of a proto neutron star is examined within the framework of the relativistic mean-field theory for the baryon octet system. It is found that the relative number density of Λ, Ξ-, and Ξ0 for CZ11 are all smaller than those for GL97 and either for CZ11 or for GL97, Σ-, Σ0, and Σ+ all do not appear. It is also found that the pressure and the maximum mass for CZ11 are all smaller than those for GL97. The maximum mass for CZ11 decreases by approximate 9 percent compared with that for GL97.