Chiral Symmetry and the Nucleon-Nucleon Interaction

基于介子交换的现象学核子-核子（NN）势提供了对NN散射数据的高精度描述。这些势的一个缺点是它们不是从强相互作用的基本理论QCD推导出来的。量子光盘的对称性在称为手性微扰理论的低能量有效场论中得到了保留。如此推导出的手性神经网络电位还不能提供这样的定量拟合，也不适合微观核结构理论。首席研究员具有开发潜力的经验，提供高质量的适合。该提案包含了继续开发手性神经网络电位的计划，直到它们对数据进行高精度拟合。准确的手性神经网络电位将对精确的少核子研究和微观核多体理论产生重大影响。

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.