Asymmetry dependence of Gogny-based optical potential
Abstract
An analysis of neutron and proton scattering off 40,48Ca has been carried out. Real and imaginary potentials have been generated using the Nuclear Structure Method (NSM) for scattering with the Gogny D1S nucleon-nucleon effective interaction. Observables are well described by NSM for neutron and proton elastic scattering off 40Ca and for neutron scattering off 48Ca. For proton scattering off 48Ca, NSM yields a lack of absorption. This discrepancy is attributed to two-fold charge exchange (p, n, p) contribution and coupling to Gamow-Teller mode which are not included in the present version of NSM. A recipe based on a Perey-Buck fit of the NSM imaginary potential and Lane model is proposed to overcome this issue in an approximate way.
Indexation
Artículo de publicación SCOPUS
Identifier
URI: https://repositorio.uchile.cl/handle/2250/168881
DOI: 10.1140/epja/i2017-12268-7
ISSN: 1434601X
14346001
Quote Item
European Physical Journal A, Volumen 53, Issue 5, 2017
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