Influence of A Hyperons ^1S0 Superfluidity on the Direct Urca Processes with Hyperons

• 作者: 刘广洲 吴姚睿 张峰 王红岩 许妍
• 来源期刊: 理论物理通讯：英文版
• 学科: 工学
• 关键词: 子进程 超子 超流 相对论平均场理论 计算结果 能量损失 实验数据 密度范围
• 年，卷（期）: 2011,（9）
• 所属期刊栏目: Geophysics，Astronomy，and Astrophysics
• 页码范围: 521-524
• 页数: 4页
• 分类号: O512|TP311.12
• 语种: 英文

摘要

In the framework of the relativistic mean field theory （RMFT）, the relativistic energy losses of the direct Urea processes with hyperons （Y-DURCA ） for reactions A → p ＋ e ＋ υe and ≡^-→ A＋e＋υe are studied in neutron stars. We calculate the energy gap of A hyperons and investigate the effects of the ^1S0 superfluidity （SF） of A hyperons on the Y-DURCA processes. The calculated results are in line with the recent experimental data △ BAA ～ 1.01 ±0.20-0.11^＋0.18 MeV. The results indicate that the ^1S0 SF of A hyperons exists in most density ranges of happening the two reactions. The theoretical cooling curves are in agreement with observation data.