Sensitivity of nucleon-nucleus scattering to the off-shell behavior of on-shell equivalent NN potentials

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dc.creatorArellano, H. F.
dc.creatorBrieva, F. A.
dc.creatorSander, M.
dc.creatorvon Geramb, H. V.
dc.date1996-05-07
dc.date.accessioned2026-07-07T11:15:44Z
dc.date.available2026-07-07T11:15:44Z
dc.descriptionThe sensitivity of nucleon-nucleus elastic scattering to the off-shell behavior of realistic nucleon-nucleon interactions is investigated when on-shell equivalent nucleon-nucleon potentials are used. The study is based on applications of the full-folding optical model potential for an explicit treatment of the off-shell behavior of the nucleon-nucleon effective interaction. Applications were made at beam energies between 40 and 500 MeV for proton scattering from 40Ca and 208Pb. We use the momentum-dependent Paris potential and its local on-shell equivalent as obtained with the Gelfand-Levitan and Marchenko inversion formalism for the two nucleon Schroedinger equation. Full-folding calculations for nucleon-nucleus scattering show small fluctuations in the corresponding observables. This implies that off-shell features of the NN interaction cannot be unambiguously identified with these processes. Inversion potentials were also constructed directly from NN phase-shift data (SM94) in the 0-1.3 GeV energy range. Their use in proton-nucleus scattering above 200 MeV provide a superior description of the observables relative to those obtained from current realistic NN potentials. Limitations and scope of our findings are presented and discussed.
dc.description17 pages tightened REVTeX, 8 .ps figures, submitted to Phys. Rev. C
dc.identifierhttps://arxiv.org/abs/nucl-th/9605005
dc.identifierhttp://arxiv.org/abs/nucl-th/9605005
dc.identifierPhys.Rev.C54:2570-2581,1996
dc.identifierdoi:10.1103/PhysRevC.54.2570
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/192485
dc.subjectNuclear Theory
dc.titleSensitivity of nucleon-nucleus scattering to the off-shell behavior of on-shell equivalent NN potentials
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