Momentum distributions in light halo nuclei and structure constraints
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Outros Autores: | , , , |
Tipo de documento: | Artigo de conferência |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1051/epjconf/201611306012 http://hdl.handle.net/11449/172889 |
Resumo: | The core recoil momentum distribution of neutron-rich isotopes of light exotic nuclei is studied within a three-body model, where the nuclei are described by a core and two neutrons, with interactions dominated by the s-wave channel. In our framework, the two-body subsystems should have large scattering lengths in comparison with the interaction range allowing to use a three-body model with a zero-range force. The ground-state halo wave functions in momentum space are obtained by using as inputs the two-neutron separation energy and the energies of the singlet neutron-neutron and neutron-core virtual states. Within our model, we obtain the momentum probability densities for the Borromean exotic nuclei 11Li and 22C. In the case of the core recoil momentum distribution of 11Li, a fair reproduction of the experimental data was obtained, without free parameters, considering only the two-body low-energies. By analysing the obtained core momentum distribution in face of recent experimental data, we verify that such data are constraining the 22C two-neutron separation energy to a value between 100 and 400 keV. |
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Momentum distributions in light halo nuclei and structure constraintsThe core recoil momentum distribution of neutron-rich isotopes of light exotic nuclei is studied within a three-body model, where the nuclei are described by a core and two neutrons, with interactions dominated by the s-wave channel. In our framework, the two-body subsystems should have large scattering lengths in comparison with the interaction range allowing to use a three-body model with a zero-range force. The ground-state halo wave functions in momentum space are obtained by using as inputs the two-neutron separation energy and the energies of the singlet neutron-neutron and neutron-core virtual states. Within our model, we obtain the momentum probability densities for the Borromean exotic nuclei 11Li and 22C. In the case of the core recoil momentum distribution of 11Li, a fair reproduction of the experimental data was obtained, without free parameters, considering only the two-body low-energies. By analysing the obtained core momentum distribution in face of recent experimental data, we verify that such data are constraining the 22C two-neutron separation energy to a value between 100 and 400 keV.Instituto Tecnológico de Aeronáutica DCTADepartment of Physics and Astronomy Aarhus UniversityInstituto de Fomento e Coordenação IndustrialInstituto de Física Teórica UNESPCCNH Universidade Federal Do ABCInstituto de Física Teórica UNESPDCTAAarhus UniversityInstituto de Fomento e Coordenação IndustrialUniversidade Estadual Paulista (Unesp)Universidade Federal do ABC (UFABC)Souza, L. A.Bellotti, F. F.Frederico, T.Yamashita, M. T. [UNESP]Tomio, Lauro [UNESP]2018-12-11T17:02:35Z2018-12-11T17:02:35Z2016-03-25info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/conferenceObjecthttp://dx.doi.org/10.1051/epjconf/201611306012EPJ Web of Conferences, v. 113.2100-014X2101-6275http://hdl.handle.net/11449/17288910.1051/epjconf/2016113060122-s2.0-849646839768621258845956348Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengEPJ Web of Conferencesinfo:eu-repo/semantics/openAccess2021-10-23T21:44:34Zoai:repositorio.unesp.br:11449/172889Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462021-10-23T21:44:34Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Momentum distributions in light halo nuclei and structure constraints |
title |
Momentum distributions in light halo nuclei and structure constraints |
spellingShingle |
Momentum distributions in light halo nuclei and structure constraints Souza, L. A. |
title_short |
Momentum distributions in light halo nuclei and structure constraints |
title_full |
Momentum distributions in light halo nuclei and structure constraints |
title_fullStr |
Momentum distributions in light halo nuclei and structure constraints |
title_full_unstemmed |
Momentum distributions in light halo nuclei and structure constraints |
title_sort |
Momentum distributions in light halo nuclei and structure constraints |
author |
Souza, L. A. |
author_facet |
Souza, L. A. Bellotti, F. F. Frederico, T. Yamashita, M. T. [UNESP] Tomio, Lauro [UNESP] |
author_role |
author |
author2 |
Bellotti, F. F. Frederico, T. Yamashita, M. T. [UNESP] Tomio, Lauro [UNESP] |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
DCTA Aarhus University Instituto de Fomento e Coordenação Industrial Universidade Estadual Paulista (Unesp) Universidade Federal do ABC (UFABC) |
dc.contributor.author.fl_str_mv |
Souza, L. A. Bellotti, F. F. Frederico, T. Yamashita, M. T. [UNESP] Tomio, Lauro [UNESP] |
description |
The core recoil momentum distribution of neutron-rich isotopes of light exotic nuclei is studied within a three-body model, where the nuclei are described by a core and two neutrons, with interactions dominated by the s-wave channel. In our framework, the two-body subsystems should have large scattering lengths in comparison with the interaction range allowing to use a three-body model with a zero-range force. The ground-state halo wave functions in momentum space are obtained by using as inputs the two-neutron separation energy and the energies of the singlet neutron-neutron and neutron-core virtual states. Within our model, we obtain the momentum probability densities for the Borromean exotic nuclei 11Li and 22C. In the case of the core recoil momentum distribution of 11Li, a fair reproduction of the experimental data was obtained, without free parameters, considering only the two-body low-energies. By analysing the obtained core momentum distribution in face of recent experimental data, we verify that such data are constraining the 22C two-neutron separation energy to a value between 100 and 400 keV. |
publishDate |
2016 |
dc.date.none.fl_str_mv |
2016-03-25 2018-12-11T17:02:35Z 2018-12-11T17:02:35Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/conferenceObject |
format |
conferenceObject |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1051/epjconf/201611306012 EPJ Web of Conferences, v. 113. 2100-014X 2101-6275 http://hdl.handle.net/11449/172889 10.1051/epjconf/201611306012 2-s2.0-84964683976 8621258845956348 |
url |
http://dx.doi.org/10.1051/epjconf/201611306012 http://hdl.handle.net/11449/172889 |
identifier_str_mv |
EPJ Web of Conferences, v. 113. 2100-014X 2101-6275 10.1051/epjconf/201611306012 2-s2.0-84964683976 8621258845956348 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
EPJ Web of Conferences |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
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 |
|
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1799965198872739840 |