f0(975)和φ(1020)介子对中子星物质的影响

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利用相对论平均场理论,考虑了σ*,φ介子及重子八重态{N,P,A,∑-,∑0,∑+,(I)-,(I)0},研究了中子星的性质.发现当考虑了σ*,φ介子的贡献时,超子出现的临界重子数密度降低了,超子数目增加了,超子星的转变密度ρ0H降低了,物态方程变软,最大质量变小而相应的中子星半径增大,中子星的中心重子数密度、中心能量密度和中心压强均降低.
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