A set of new nucleon coupling constants and the proto neutron star matter

doi:10.1088/1674-1056/21/8/089701

Abstract 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.

Keywords: nucleon coupling constants relativistic mean-field theory proto neutron star

Received: 02 February 2012
Revised: 28 February 2012
Accepted manuscript online:

PACS:	97.60.Jd	(Neutron stars)
	26.60.Kp	(Equations of state of neutron-star matter)
	21.65.Mn	(Equations of state of nuclear matter)

Fund: Project supported by the Natural Science Foundation of Anhui Province of China (Grant No. 1208085MA09), the Science Research Program of Institutions of Higher Education of Anhui Province of China (Grant No. KJ2012Z297), and the Fundamental Research Funds for the Central Universities (Grant No. SWJTU12ZT11).

Corresponding Authors: Zhao Xian-Feng
E-mail: zhaopioneer.student@sina.com

Cite this article:

Zhao Xian-Feng (赵先锋), Jia Huan-Yu (贾焕玉) A set of new nucleon coupling constants and the proto neutron star matter 2012 Chin. Phys. B 21 089701

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