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Estimates and power counting in uniform nuclear matter with softened interactions

机译:软化相互作用统一核物质的估计和功率计数

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摘要

Modern softened nucleon-nucleon interactions are well suited for perturbative many-body calculations, but a many-body power counting scheme is lacking. Estimates of diagrammatic contributions at finite density are important ingredients in such a scheme. Here we show how to make quantitative estimates of the particle-particle and hole-hole channel in uniform nuclear matter for soft interactions. We also use estimates to assess the role of normal-ordered three-body forces for a pure contact interaction.
机译:现代软化的核仁核相互作用非常适合于扰动许多身体计算,但缺乏许多身体功率计数方案。有限密度的图解贡献的估计是这种方案中的重要成分。在这里,我们展示了如何使粒子粒子和孔洞通道的定量估计在均匀的核物质中进行软相互作用。我们还使用估计来评估正常有序的三体力的作用,以获得纯接触相互作用。

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  • 来源
    《Physical Review C》 |2017年第2017期|054005.1-054005.17|共17页
  • 作者单位

    Department of Physics The Ohio State University Columbus Ohio 43210 USA;

    National Superconducting Cyclotron Laboratory and Department of Physics and Astronomy Michigan State University East Lansing Michigan 48824 USA;

    Department of Physics The Ohio State University Columbus Ohio 43210 USA;

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