Weakly bound halo breakup of neutron-Li-7 and nucleon-Be-7 on a lead target

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniv South Africa-
Autor(es): dc.contributorInst Tecnol Aeronaut-
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.creatorMukeru, B.-
Autor(es): dc.creatorFrederico, T.-
Autor(es): dc.creatorTomio, Lauro [UNESP]-
Data de aceite: dc.date.accessioned2022-02-22T00:57:44Z-
Data de disponibilização: dc.date.available2022-02-22T00:57:44Z-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2020-12-27-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1103/PhysRevC.102.064623-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/209825-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/209825-
Descrição: dc.descriptionA comparative analysis of the breakup cross-sections, using continuum discretized coupled-channel approach, is presented for the weakly bound p-wave neutron Li-7 and nucleon-Be-7 projectiles on the Pb-208 target, by investigating the role of interaction effects between the core (Li-7, Be-7) with the target. The extra charge in the B-8 has the effect to increase the Coulomb contribution in the breakup reaction channel. By fixing both projectile ground-state binding energies at 0.137 MeV (B-8 experimental one), with incident energies at the Coulomb barrier and above, we found that the charge difference accounts for over 30% of the neutron-Be-7 breakup cross sections, substantially larger than the corresponding one for proton-Be-7. The large enhancement of the neutron-halo breakup cross-section with respect to the proton-halo case shown in this work is associated to dynamical effects coming from the excitation of the projectile internal continuum due to the nucleon-target and core-target interactions, together with the widely accepted static effects coming from the long wave-function tail of the weakly bound neutron. The interplay between these dynamical and static effects in the energy spectrum of the B-8 fragments is visible, revealed by the peak of the energy distribution pushed to higher relative energies. This follows from the two-body final state interactions between the charged fragments distorted by the three-body reaction environment.-
Descrição: dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)-
Descrição: dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)-
Descrição: dc.descriptionUniv South Africa, Dept Phys, POB 392, ZA-0003 Pretoria, South Africa-
Descrição: dc.descriptionInst Tecnol Aeronaut, BR-12228900 Sao Jose Dos Campos, Brazil-
Descrição: dc.descriptionUniv Estadual Paulista, Inst Fis Teor, BR-01140070 Sao Paulo, Brazil-
Descrição: dc.descriptionUniv Estadual Paulista, Inst Fis Teor, BR-01140070 Sao Paulo, Brazil-
Descrição: dc.descriptionCNPq: 308486/2015-3-
Descrição: dc.descriptionCNPq: 304469-2019-0-
Descrição: dc.descriptionCNPq: 464898/2014-5-
Descrição: dc.descriptionFAPESP: 2017/05660-0-
Formato: dc.format13-
Idioma: dc.languageen-
Publicador: dc.publisherAmer Physical Soc-
Relação: dc.relationPhysical Review C-
???dc.source???: dc.sourceWeb of Science-
Título: dc.titleWeakly bound halo breakup of neutron-Li-7 and nucleon-Be-7 on a lead target-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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