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arXiv · 1409.4012

Separable Representation of Proton-Nucleus Optical Potentials

L. Hlophe·V. Eremenko·Ch. Elster·F. M. Nunes·G. Arbanas·J. E. Escher·I. J. Thompson
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Abstract

Recently, a new approach for solving the three-body problem for (d,p) reactions in the Coulomb-distorted basis in momentum space was proposed. Important input quantities for such calculations are the scattering matrix elements for proton- and neutron-nucleus scattering. We present a generalization of the Ernst-Shakin-Thaler scheme in which a momentum space separable representation of proton-nucleus scattering matrix elements can be calculated in the Coulomb basis. The viability of this method is demonstrated by comparing S-matrix elements obtained for p$+^{48}$Ca and p$+^{208}$Pb for a phenomenological optical potential with corresponding coordinate space calculations.

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L. Hlophe, V. Eremenko, Ch. Elster, F. M. Nunes, G. Arbanas, J. E. Escher, I. J. Thompson. 2014-09-14. Separable Representation of Proton-Nucleus Optical Potentials. https://doi.org/10.1103/physrevc.90.061602

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