We present a method for ordering two-nucleon interactions based upon their scaling with the number of QCD colors, Nc, in the limit that Ncbecomes large. Available data in the two-nucleon sector show general agreement with this ordering, indicating that the method may be useful in other contexts where data are less readily available. However, several caveats and potential pitfalls can make the large- Ncordering fragile and/or vulnerable to misinterpretation. We discuss the application of the large- Ncanalysis to two- and three-nucleon interactions, including those originating from weak and BSM (beyond the Standard Model) interactions, as well as two-nucleon external currents. Finally, we discuss some open questions in the field.

中文翻译：

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Large-NcQCD 对 NNInteraction 的影响


我们提出了一种根据双核子相互作用随 QCD 颜色数量 Nc 的缩放而在 Nc 变得大的极限内对双核子相互作用进行排序的方法。双核子扇区的可用数据显示与这种排序基本一致，表明该方法在数据不太容易获得的其他情况下可能有用。然而，一些警告和潜在的陷阱可能会使大边界变得脆弱和/或容易被误解。我们讨论了大 Nc 分析在双核子和三核子相互作用中的应用，包括那些源自弱和 BSM（超出标准模型）相互作用的相互作用，以及双核子外部电流。最后，我们讨论了该领域的一些悬而未决的问题。