We investigate the role of high momentum components of optical model potentials for nucleon-nucleus scattering and its incidence on their nonlocal structure in coordinate space. The study covers closed-shell nuclei with mass number in the range \(4 \le A \le 208\), for nucleon energies from tens of MeV up to 1 GeV. To this purpose microscopic optical potentials were calculated using density-dependent off-shell g matrices in Brueckner-Hartree-Fock approximation and based on Argonne \(v_{18}\) as well as chiral 2N force up to next-to-next-to-next-to-leading order. We confirm that the gradual suppression of high-momentum contributions of the optical potential results in quite different coordinate-space counterparts, all of them accounting for the same scattering observables. We infer a minimum cutoff momentum Q, a function of the target mass number and energy of the process, that filters out irrelevant ultraviolet components of the potential. We find that when ultraviolet suppression is applied to Perey-Buck nonlocal potential or local Woods-Saxon potentials, they result with similar nonlocal structure to those obtained from microscopic models in momentum space. We examine the transversal nonlocality, quantity that makes comparable the intrinsic nonlocality of any potential regardless of its representation. We conclude that meaningful comparisons of nonlocal features of alternative potential models require the suppression of their ultraviolet components.

我们调查了核模型-核散射的光学模型势的高动量分量的作用及其在坐标空间中非局部结构的发生率。该研究涵盖质量数在\（4 \ le A \ le 208 \）范围内的闭壳核，其核能范围从数十MeV到1 GeV。为此，使用基于密度的离壳g矩阵以Brueckner-Hartree-Fock近似并基于Argonne \（v_ {18} \）以及手性2 N来计算微观光学势。强制执行下一个到下一个到领先的顺序。我们确认，逐渐抑制光势的高动量贡献会导致完全不同的坐标空间对应物，所有这些对应物都说明了相同的散射观测值。我们推断出最小截止动量Q，是目标质量数和过程能量的函数，可以滤除电位中无关的紫外线成分。我们发现，当将紫外线抑制应用于Perey-Buck非局部电位或局部Woods-Saxon电位时，它们的非局部结构与动量空间中从微观模型获得的非局部结构相似。我们研究了横向非局部性，即可以使任何潜在内在非局部性具有可比性的数量，无论其表示形式如何。我们得出结论，替代性潜在模型的非局部特征的有意义的比较需要抑制其紫外线成分。