Nuclear forces from lattice QCD
Nuclear forces from lattice QCD
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DOI：
10.1063/1.3584068
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发表时间：
2011-05
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影响因子：
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通讯作者：
N. Ishii
中科院分区：
文献类型：
--
作者：
N. Ishii
回顾了核力的格子 QCD 构造。该方法通过求解薛定谔方程来构造核势，其中等时 Nambu-Bethe-Salpeter (NBS) 波函数被视为量子力学波函数。由于等时NBS波函数的长距离行为是由散射相位控制的，这与量子力学中的散射波函数完全相同，因此所得的势能忠实于NN散射数据。该势的导数展开导致中心势和张量势处于首阶。基于淬灭 QCD 显示了这两个电势的一些数值结果。
Lattice QCD construction of nuclear forces is reviewed. In this method, the nuclear potentials are constructed by solving the Schrodinger equation, where equal-time Nambu-Bethe-Salpeter (NBS) wave functions are regarded as quantum mechanical wave functions. Since the long distance behavior of equal-time NBS wave functions is controlled by the scattering phase, which is in exactly the same way as scattering wave functions in quantum mechanics, the resulting potentials are faithful to the NN scattering data. The derivative expansion of this potential leads to the central and the tensor potentials at the leading order. Some of numerical results of these two potentials are shown based on the quenched QCD.