Non-localities in nucleon-nucleus potentials

Abstract

Two causes of non-locality inherent in nucleon-nucleus scattering are considered. They are the results of two-nucleon antisymmetry of the projectile with each nucleon in the nucleus and the dynamic polarization potential representation of channel coupling. For energies $\sim 40-300$ MeV, a g-folding model of the optical potential is used to show the influence of the knock-out process that is a result of the two-nucleon antisymmetry. To explore the dynamic polarization potential caused by channel coupling, a multichannel algebraic scattering model has been used for low-energy scattering.

12 pages, 11 figures, submitted to EPJA

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Cited by in corpus (14)

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• Evidence of nonlocality due to a gradient term in the optical model
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• Surface-peaked medium effects in the interaction of nucleons with finite nuclei
• On the separability of microscopic optical model potentials and emerging bell-shape Perey-Buck nonlocality
• Non-local interactions in the $(d,p)$ surrogate method for $(n,\gamma )$ reactions
• Microscopic model analyses of proton scattering from 12C, 20Ne, 24Mg, 28Si and 40Ca
• Study of nonlocality effects in direct capture reactions with Lagrange-mesh $R$-matrix method
• A multi-channel model for an α plus ${}^6$He nucleus cluster
• Modeling alpha-nucleus elastic scattering using a velocity-dependent optical model
• Considering non-locality in the optical potentials within eikonal models
• Microscopic optical potentials from a Greens function approach