摘要
本文利用相对论平均场理论并考虑重子八重态{n,p,∧,∑^-,∑~0,∑^+,(?)^-,(?)~0},研究了σ~*,ψ介子对前身中子星转动惯量的影响.研究发现:考虑到σ~*,ψ介子的贡献,σ_0,ω_,ρ_0介子的势场强度以及中子电子的化学势都明显降低了.同时还发现,与不考虑σ~*,ψ介子的贡献时相比,前身中子星质量的最大值和转动惯量的最大值也都降低了,并且前者的减小量大于后者的减小量.
Within the framework of relativistic mean field theory for the baryon octet {n,P,A,∑^-,∑^＋,Θ,Θ} system, the influence of σ and φ mesons on the moment of inertia of proto neutron star is investigated. It is found that considering the contribution of σ and φ mesons, the fields of σ0,ω0,ρ0 mesons, the chemical potentials of neutrons and electrons obviously decrease. It is also found that compared with those without considering the contribution of σ and φ mesons, the maximum value of mass and that of moment of inertia all decrease too and the reduce of the former is more than that of the latter.
出处
《四川大学学报（自然科学版）》
CAS
CSCD
北大核心
2010年第4期825-830,共6页
Journal of Sichuan University(Natural Science Edition)
基金
安徽省高校省级自然科学研究基金(KJ2009B106)
滁州学院科研基金(2008kj019B)
滁州学院博士科研启动基金
关键词
转动惯量
前身中子星
相对论平均场理论
moment of inertia, proto neutron star, relativistic mean field theory
