Deuteron effects in nucleon-nucleus scattering at intermediate energies
Author
dc.contributor.author
Arellano Sepúlveda, Hugo
Author
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Brieva Rodríguez, Francisco
es_CL
Author
dc.contributor.author
Love, W. G.
es_CL
Admission date
dc.date.accessioned
2013-12-19T17:34:32Z
Available date
dc.date.available
2013-12-19T17:34:32Z
Publication date
dc.date.issued
1994-11
Cita de ítem
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PHYSICAL REVIEW C VOLUME 50, NUMBER 5 NOVEMBER 1994, Pp. 2480-2489
en_US
Identifier
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https://repositorio.uchile.cl/handle/2250/125806
General note
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Artículo de publicación ISI
Abstract
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We investigate the role of the full dynamical dependence of the free off-shell nucleon-nucleon t
matrix on the optical potential for proton-nucleus elastic scattering in the 100—400 MeV incident
energy range within a full-folding model context. Particular emphasis is placed on the effects of
deuteron formation by explicitly taking into account pole singularities in the free nucleon-nucleon t
matrix. The full-folding model for the optical potential provides a Bexible framework for this purpose
as it allows the sampling of the internucleon effective force both off shell and as a function of the
energy available in the center of mass for the interacting nucleon pair. A comparison of calculated
and measured scattering observables for proton elastic scattering on Ca and Pb leads to the
conclusion that the full off-shell free t matrix is a poor approximation for that part of the nucleonnucleon
effective force required for calculating optical potentials below 250 MeV. Medium effects
and higher order corrections to the optical potential are necessary to improve our understanding of
nucleon scattering.
PACS number(s): 25.40.