Momentum and energy distributions of nucleous in finite nuclei due to short-range correlations

ABSTRACT The influence of short-range correlations on the momentum and energy distribution of nucleons in nuclei is evaluated assuming a realistic meson-exchange potential for the nucleon-nucleon interaction. Using the Green-function approach the calculations are performed directly for the finite nu...

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Detalles Bibliográficos
Autores: Müther, Herbert, Polls Martí, Artur, Dickhoff, Willem H.
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:1995
País:España
Institución:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/12243
Acceso en línea:https://hdl.handle.net/2445/12243
Access Level:acceso abierto
Palabra clave:Estructura nuclear
Reaccions nuclears
Nuclear structure
Nuclear reactions
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spelling Momentum and energy distributions of nucleous in finite nuclei due to short-range correlationsMüther, HerbertPolls Martí, ArturDickhoff, Willem H.Estructura nuclearReaccions nuclearsNuclear structureNuclear reactionsABSTRACT The influence of short-range correlations on the momentum and energy distribution of nucleons in nuclei is evaluated assuming a realistic meson-exchange potential for the nucleon-nucleon interaction. Using the Green-function approach the calculations are performed directly for the finite nucleus 16 O avoiding the local density approximation and its reference to studies of infinite nuclear matter. The nucleon-nucleon correlations induced by the short-range and tensor components of the interaction yield an enhancement of the momentum distribution at high momenta as compared to the Hartree-Fock description. These high-momentum components should be observed mainly in nucleon knockout reactions like (e,e’p) leaving the final nucleus in a state of high excitation energy. Our analysis also demonstrates that non-negligible contributions to the momentum distribution should be found in partial waves which are unoccupied in the simple shell model. The treatment of correlations beyond the Brueckner-Hartree-Fock approximation also yields an improvement for the calculated ground-state properties.The American Physical Society1995info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://hdl.handle.net/2445/12243Articles publicats en revistes (Física Quàntica i Astrofísica)reponame:Dipòsit Digital de la UBinstname:Universidad de BarcelonaInglésReproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevC.51.3040Physical Review C, 1995, vol. 51, núm. 6, p. 3040-3051http://dx.doi.org/10.1103/PhysRevC.51.3040(c) The American Physical Society, 1995info:eu-repo/semantics/openAccessoai:diposit.ub.edu:2445/122432026-05-27T06:46:51Z
dc.title.none.fl_str_mv Momentum and energy distributions of nucleous in finite nuclei due to short-range correlations
title Momentum and energy distributions of nucleous in finite nuclei due to short-range correlations
spellingShingle Momentum and energy distributions of nucleous in finite nuclei due to short-range correlations
Müther, Herbert
Estructura nuclear
Reaccions nuclears
Nuclear structure
Nuclear reactions
title_short Momentum and energy distributions of nucleous in finite nuclei due to short-range correlations
title_full Momentum and energy distributions of nucleous in finite nuclei due to short-range correlations
title_fullStr Momentum and energy distributions of nucleous in finite nuclei due to short-range correlations
title_full_unstemmed Momentum and energy distributions of nucleous in finite nuclei due to short-range correlations
title_sort Momentum and energy distributions of nucleous in finite nuclei due to short-range correlations
dc.creator.none.fl_str_mv Müther, Herbert
Polls Martí, Artur
Dickhoff, Willem H.
author Müther, Herbert
author_facet Müther, Herbert
Polls Martí, Artur
Dickhoff, Willem H.
author_role author
author2 Polls Martí, Artur
Dickhoff, Willem H.
author2_role author
author
dc.subject.none.fl_str_mv Estructura nuclear
Reaccions nuclears
Nuclear structure
Nuclear reactions
topic Estructura nuclear
Reaccions nuclears
Nuclear structure
Nuclear reactions
description ABSTRACT The influence of short-range correlations on the momentum and energy distribution of nucleons in nuclei is evaluated assuming a realistic meson-exchange potential for the nucleon-nucleon interaction. Using the Green-function approach the calculations are performed directly for the finite nucleus 16 O avoiding the local density approximation and its reference to studies of infinite nuclear matter. The nucleon-nucleon correlations induced by the short-range and tensor components of the interaction yield an enhancement of the momentum distribution at high momenta as compared to the Hartree-Fock description. These high-momentum components should be observed mainly in nucleon knockout reactions like (e,e’p) leaving the final nucleus in a state of high excitation energy. Our analysis also demonstrates that non-negligible contributions to the momentum distribution should be found in partial waves which are unoccupied in the simple shell model. The treatment of correlations beyond the Brueckner-Hartree-Fock approximation also yields an improvement for the calculated ground-state properties.
publishDate 1995
dc.date.none.fl_str_mv 1995
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/12243
url https://hdl.handle.net/2445/12243
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Reproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevC.51.3040
Physical Review C, 1995, vol. 51, núm. 6, p. 3040-3051
http://dx.doi.org/10.1103/PhysRevC.51.3040
dc.rights.none.fl_str_mv (c) The American Physical Society, 1995
info:eu-repo/semantics/openAccess
rights_invalid_str_mv (c) The American Physical Society, 1995
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv The American Physical Society
publisher.none.fl_str_mv The American Physical Society
dc.source.none.fl_str_mv Articles publicats en revistes (Física Quàntica i Astrofísica)
reponame:Dipòsit Digital de la UB
instname:Universidad de Barcelona
instname_str Universidad de Barcelona
reponame_str Dipòsit Digital de la UB
collection Dipòsit Digital de la UB
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,300724

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