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

• 来源期刊: 中国物理B（英文版）
• 关键词: nucleon coupling constants relativistic mean-field theory proto neutron star
• 年，卷（期）: 2012,（8）
• 页码范围: 595-599
• 页数: 5页
• 语种: 英文
• DOI: 10.1088/1674-1056/21/8/089701

摘要

Using a new set of nucleon coupling constants CZ11 the properties of a proto neutron star are examined within the framework of the relativistic mean-field theory for the baryon octet system.It is found that the relative number density of A,( E)-,and ( E)0 for CZ11 are all smaller than those for GL97 and for both CZ11 and GL97,∑-,∑0,and Σ+ 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 approximately 9 percent compared with that for GL97.