Constraints on two-neutron separation energy in the Borromean C-22 nucleus

Nenhuma Miniatura disponível

Data

2011-02-21

Orientador

Coorientador

Pós-graduação

Curso de graduação

Título da Revista

ISSN da Revista

Título de Volume

Editor

Elsevier B.V.

Tipo

Artigo

Direito de acesso

Acesso restrito

Resumo

The recently extracted matter radius of carbon isotope C-22 allows us to estimate the mean-square distance of a halo neutron with respect to the center-of-mass of this nucleus. By considering this information, we suggest an energy region for an experimental investigation of the unbound C-21 virtual state. Our analysis, in a renormalized zero-ranged three-body model, also indicates that the two-neutron separation energy in C-22 is expected to be found below similar to 0.4 MeV, where the C-22 is approximated by a Borromean configuration with a pointlike C-20 and two s-wave halo neutrons. A virtual-state energy of C-21 close to zero, would make the C-22, within Borromean nuclei configurations, the most promising candidate to present an excited bound Efimov state or a continuum three-body resonance. (C) 2011 Elsevier B.V. All rights reserved.

Descrição

Idioma

Inglês

Como citar

Physics Letters B. Amsterdam: Elsevier B.V., v. 697, n. 1, p. 90-93, 2011.

Itens relacionados