Ultraviolet suppression and nonlocality in optical model potentials for nucleon-nucleus scattering

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