Comparison of optical model results from a microscopic Schrödinger approach to nucleon-nucleus elastic scattering with those from a global Dirac phenomenology

Abstract

Comparisons are made between results of calculations for intermediate energy nucleon-nucleus scattering for 12C, 16O, 40Ca, 90Zr, and 208Pb, using optical potentials obtained from global Dirac phenomenology and from a microscopic Schrödinger model. Differential cross sections and spin observables for scattering from the set of five nuclei at 65 MeV and 200 MeV have been studied to assess the relative merits of each approach. Total reaction cross sections from proton-nucleus and total cross sections from neutron-nucleus scattering have been evaluated and compared with data for those five targets in the energy range 20 MeV to 800 MeV. The methods of analyses give results that compare well with experimental data in those energy regimes for which the procedures are suited.

arXiv comment22 pages, 12 figures

References in corpus (7)

• Discerning the neutron density distribution of 208Pb from nucleon elastic scattering
• Neutron Densities from a Global Analysis of Medium Energy Proton Nucleus Elastic Scattering
• An algebraic solution of the multichannel problem applied to low energy nucleon-nucleus scattering
• Predicting total reaction cross sections for nucleon-nucleus scattering
• Extension of the full-folding optical model for nucleon-nucleus scattering with applications up to 1.5 GeV
• Predictions of total and total reaction cross sections for nucleon-nucleus scattering up to 300 MeV
• Simple function form for n+208Pb total cross section between 5 and 600 MeV

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