近距离核力的类Luneburg透镜结构Pauli吸引核
Luneburg-lens-like structural Pauli attractive core of nuclear force at short distances
摘要：
自从杰斯特罗在1951年提出核力以来，人们已经认识到它在短距离内有一个排斥核，类似于分子力。从质子-质子散射的1S_0相移实验证实了排斥的存在，该相移在230 MeV以上变为负值。这种排斥对于防止核子-核子系统因吸引而坍缩是必不可少的。在许多研究中，包括最近的格点量子色动力学计算中，排斥的起源被认为是由于泡利原理，类似于最初在α-α散射中揭示的排斥。另一方面，最近的研究表明，包含α-α相互作用的核间势在短距离下具有类似于Luneburg透镜的吸引力，而不是排斥力。我们表明，核力与吸引力的潜力，在短距离内，再现实验相移以及具有Luneburg透镜状结构泡利吸引核心（SPAC）在短距离内，并作为明显的排斥。表观排斥是由深嵌入的不可观测的泡利禁态类似于核-核势。
英文摘要：
The nuclear force has been understood to have a repulsive core at short distances, similar to a molecular force, since Jastrow proposed it in 1951. The existence of the repulsion was experimentally confirmed from the proton-proton scattering 1S_0 phase shift, which becomes negative beyond 230 MeV. This repulsion is essential for preventing the nucleon-nucleon system from collapsing by attraction. The origin of the repulsion has been considered to be due to the Pauli principle, similar to the repulsion originally revealed in alpha-alpha scattering, in many studies including recent lattice QCD calculations. On the other hand, very recently it was shown that an inter-nuclear potential including alpha-alpha interactions has a Luneburg-lens-like attraction at short distances rather than repulsion. We show that the nuclear force with an attractive potential at short distances that reproduces the experimental phase shifts well has a Luneburg-lens-like structural Pauli attractive core (SPAC) at short distances and acts as apparent repulsion. The apparent repulsion is caused by the deeply embedded unobservable Pauli forbidden state similar to nucleus-nucleus potentials.
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