Chiral Symmetry and the Nucleon-Nucleon Interaction

0099444 Machleidt基于介子交换的唯象核子-核子（NN）势提供了NN散射数据的高精度描述。 这些势的缺点是它们不是从强相互作用的基本理论QCD导出的。 QCD的对称性保留在一个称为手征微扰论的低能有效场论中。 手性NN潜力，因此得出的不，尚未提供这样一个定量的配合，也不适合于微观核结构理论。主要研究者具有开发潜力的经验，可提供高质量的匹配。 该提案包含一个继续开发手性NN势的计划，直到它们对数据进行高精度拟合。 精确的手征NN势对精确的少核子研究和微观核多体理论有着重要的意义。

0099444MachleidtPhenomenological nucleon-nucleon (NN) potentials, based on meson exchange, provide a high-precision description of the NN scattering data. A drawback of these potentials is that they are not derived from the fundamental theory of the strong interaction, QCD. The symmetries of QCD are retained in a low energy effective field theory termed chiral perturbation theory. The chiral NN potentials so derived do not, as yet, provide such a quantitative fit, nor are they suited for microscopic nuclear structure theory. The Principal Investigator has experience with the development of potentials that provide a high quality fit. The proposal contains a plan for continuing development of the chiral NN potentials until they give a high-precision fit to the data. An accurate chiral NN potential will have substantial impact on exact few-nucleon studies and microscopic nuclear many-body theory.