EXOTIC CARBON SYSTEMS in TWO-NEUTRON HALO THREE-BODY MODELS

• Autor(a) principal: Tomio, Lauro
• Data de Publicação: 2011
• Outros Autores: Delfino, Antonio, Frederico, Tobias, Hadizadeh, M. R., Yamashita, M. T., Marques de Carvalho, Raquel S. [UNIFESP]
• Tipo de documento: Artigo
• Idioma: eng
• Título da fonte: Repositório Institucional da UNIFESP
• Texto Completo: http://dx.doi.org/10.1142/S0218301311040335; http://repositorio.unifesp.br/handle/11600/34256
• topic: Halo nuclei; Binding Energies; Faddeev Equation; Three-body Systems

The general properties of exotic carbon systems, considered as a core with a two-neutron (n - n) halo, are described within a renormalized zero-range three-body model. in particular, it is addressed the cases with a core of (18)C and (20)C. in such a three-body framework, (20)C has a bound subsystem ((19)C), whereas (22)C has a Borromean structure with all subsystems unbound. (22)C is also known as the heaviest:, carbon halo nucleus discovered. the spatial distributions of such weakly-bound three-body systems are studied in terms of a universal scaling function, which depends on the mass ratio of the particles, as well as on the nature of the subsystems.