超声波物质状态方程的解析参数化
An analytic parametrization of the hyperonic matter equation of state
摘要:
本文采用真实的Argonne V_(18)核子-核子势和Urbana型三体力,以及三种超子-核子相互作用模型:Nijmegen软核模型NSC 89和NSC 97 e,以及最新的Juelich群介子交换势,构造了一个基于微观Brueckner-Hartree-Fock计算的超子物质状态方程的解析参数化.这个参数化的建设是基于一个简单的相空间分析和再现具有良好的精度与少量的参数的微观计算的结果。这种参数化允许快速计算,准确地模拟微观结果,因此,从实用的角度来看非常有用。
英文摘要:
An analytic parametrization of the hyperonic matter equation of state based on microscopic Brueckner-Hartree-Fock calculations has been constructed using the realistic Argonne V18 nucleon-nucleon potential plus a three-body force of Urbana type, and three models of the hyperon-nucleon interaction: the Nijmegen soft-core models NSC89 and NSC97e, and the most recent meson-exchange potential of the Juelich group. The construction of this parametrization is based on a simple phase-space analysis and reproduces with good accuracy the results of the microscopic calculations with a small number of parameters. This parametrization allows for rapid calculations that accurately mimic the microscopic results, being therefore, very useful from a practical point of view.
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