Core momentum distribution in two-neutron halo nuclei

Detalhes bibliográficos
Autor(a) principal: Souza, L. A.
Data de Publicação: 2016
Outros Autores: Bellotti, F. F., Yamashita, M. T. [UNESP], Frederico, T., Tomio, Lauro [UNESP]
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://dx.doi.org/10.1016/j.physletb.2016.03.087
http://hdl.handle.net/11449/172807
Resumo: The core momentum distribution of a weakly-bound neutron-neutron-core exotic nucleus is computed within a renormalized zero-range three-body model, with interactions in the s-wave channel. The halo wave-function in momentum space is obtained by using as inputs the two-body scattering lengths and the two-neutron separation energy. The core momentum densities are computed for 11Li, 14Be 20C and 22C. The model describes the experimental data for 11Li, 14Be and to some extent 20C. The recoil momentum distribution of the 20C from the breakup of 22C nucleus is computed for different two-neutron separation energies, and from the comparison with recent experimental data the two-neutron separation energy is estimated in the range 100≲S2n≲400 keV. The recoil momentum distribution depends weakly on the neutron-20C scattering length, while the matter radius is strongly sensitive to it. The expected universality of the momentum distribution width is verified by also considering excited states for the system.
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spelling Core momentum distribution in two-neutron halo nucleiBinding energiesCarbon-22Faddeev equationHalo-nucleiThree-body systemThe core momentum distribution of a weakly-bound neutron-neutron-core exotic nucleus is computed within a renormalized zero-range three-body model, with interactions in the s-wave channel. The halo wave-function in momentum space is obtained by using as inputs the two-body scattering lengths and the two-neutron separation energy. The core momentum densities are computed for 11Li, 14Be 20C and 22C. The model describes the experimental data for 11Li, 14Be and to some extent 20C. The recoil momentum distribution of the 20C from the breakup of 22C nucleus is computed for different two-neutron separation energies, and from the comparison with recent experimental data the two-neutron separation energy is estimated in the range 100≲S2n≲400 keV. The recoil momentum distribution depends weakly on the neutron-20C scattering length, while the matter radius is strongly sensitive to it. The expected universality of the momentum distribution width is verified by also considering excited states for the system.Instituto Tecnológico de Aeronáutica DCTA, S. José dos CamposDepartment of Physics and Astronomy Aarhus UniversityInstituto de Física Teórica UNESP - Universidade Estadual PaulistaCentro de Ciências Naturais e Humanas Universidade Federal do ABCInstituto de Física Teórica UNESP - Universidade Estadual PaulistaDCTAAarhus UniversityUniversidade Estadual Paulista (Unesp)Universidade Federal do ABC (UFABC)Souza, L. A.Bellotti, F. F.Yamashita, M. T. [UNESP]Frederico, T.Tomio, Lauro [UNESP]2018-12-11T17:02:15Z2018-12-11T17:02:15Z2016-06-10info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article368-375application/pdfhttp://dx.doi.org/10.1016/j.physletb.2016.03.087Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, v. 757, p. 368-375.0370-2693http://hdl.handle.net/11449/17280710.1016/j.physletb.2016.03.0872-s2.0-849629099852-s2.0-84962909985.pdf8621258845956348Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics2,336info:eu-repo/semantics/openAccess2023-11-02T06:13:10Zoai:repositorio.unesp.br:11449/172807Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T16:45:18.912577Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Core momentum distribution in two-neutron halo nuclei
title Core momentum distribution in two-neutron halo nuclei
spellingShingle Core momentum distribution in two-neutron halo nuclei
Souza, L. A.
Binding energies
Carbon-22
Faddeev equation
Halo-nuclei
Three-body system
title_short Core momentum distribution in two-neutron halo nuclei
title_full Core momentum distribution in two-neutron halo nuclei
title_fullStr Core momentum distribution in two-neutron halo nuclei
title_full_unstemmed Core momentum distribution in two-neutron halo nuclei
title_sort Core momentum distribution in two-neutron halo nuclei
author Souza, L. A.
author_facet Souza, L. A.
Bellotti, F. F.
Yamashita, M. T. [UNESP]
Frederico, T.
Tomio, Lauro [UNESP]
author_role author
author2 Bellotti, F. F.
Yamashita, M. T. [UNESP]
Frederico, T.
Tomio, Lauro [UNESP]
author2_role author
author
author
author
dc.contributor.none.fl_str_mv DCTA
Aarhus University
Universidade Estadual Paulista (Unesp)
Universidade Federal do ABC (UFABC)
dc.contributor.author.fl_str_mv Souza, L. A.
Bellotti, F. F.
Yamashita, M. T. [UNESP]
Frederico, T.
Tomio, Lauro [UNESP]
dc.subject.por.fl_str_mv Binding energies
Carbon-22
Faddeev equation
Halo-nuclei
Three-body system
topic Binding energies
Carbon-22
Faddeev equation
Halo-nuclei
Three-body system
description The core momentum distribution of a weakly-bound neutron-neutron-core exotic nucleus is computed within a renormalized zero-range three-body model, with interactions in the s-wave channel. The halo wave-function in momentum space is obtained by using as inputs the two-body scattering lengths and the two-neutron separation energy. The core momentum densities are computed for 11Li, 14Be 20C and 22C. The model describes the experimental data for 11Li, 14Be and to some extent 20C. The recoil momentum distribution of the 20C from the breakup of 22C nucleus is computed for different two-neutron separation energies, and from the comparison with recent experimental data the two-neutron separation energy is estimated in the range 100≲S2n≲400 keV. The recoil momentum distribution depends weakly on the neutron-20C scattering length, while the matter radius is strongly sensitive to it. The expected universality of the momentum distribution width is verified by also considering excited states for the system.
publishDate 2016
dc.date.none.fl_str_mv 2016-06-10
2018-12-11T17:02:15Z
2018-12-11T17:02:15Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://dx.doi.org/10.1016/j.physletb.2016.03.087
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, v. 757, p. 368-375.
0370-2693
http://hdl.handle.net/11449/172807
10.1016/j.physletb.2016.03.087
2-s2.0-84962909985
2-s2.0-84962909985.pdf
8621258845956348
url http://dx.doi.org/10.1016/j.physletb.2016.03.087
http://hdl.handle.net/11449/172807
identifier_str_mv Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, v. 757, p. 368-375.
0370-2693
10.1016/j.physletb.2016.03.087
2-s2.0-84962909985
2-s2.0-84962909985.pdf
8621258845956348
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
2,336
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 368-375
application/pdf
dc.source.none.fl_str_mv Scopus
reponame:Repositório Institucional da UNESP
instname:Universidade Estadual Paulista (UNESP)
instacron:UNESP
instname_str Universidade Estadual Paulista (UNESP)
instacron_str UNESP
institution UNESP
reponame_str Repositório Institucional da UNESP
collection Repositório Institucional da UNESP
repository.name.fl_str_mv Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)
repository.mail.fl_str_mv
_version_ 1808128696294309888

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