现代核子-核子势

Modern Nucleon-nucleon Potential

核子 -核子二体相互作用是联结 QCD与核多体理论计算的桥梁 ,一直是核物理研究的主线之一 .简单回顾了现代核子 -核子相互作用理论的新发展 。

Nucleon nucleon interaction is the key point of nuclear physics, bridging the gap between QCD and the effective interaction appropriate for nuclear many body calculations. The older potential models are no longer suitable for describing the present set of more numerous and much more accurate experimental data without refitting the parameters. In 1990s, both older (classical) phenomenological potentials and meson exchange potentials have already had revisions and updates, denoted by Argonne ν 18 , Reid 93, Nijm 94, CD Bonn etc, respectively. In this work, we briefly reviewed these modern nucleon nucleon potentials, emphasizing the role of isospin dependence. According to current understanding, the charge independence breaking (CIB) and charge symmetry breaking (CSB) of the nucleon nucleon interaction is due to the differences between the up and down quark masses and electromagnetic interaction. CSB and CIB of the new Argonne ν 18 and of the CD Bonn, were disscused here in more detail.