| Texto completo | |
| Autor(es): |
Shalchi, M. A.
;
Yamashita, M. T.
;
Hadizadeh, M. R.
;
Frederico, T.
;
Tomio, Lauro
Número total de Autores: 5
|
| Tipo de documento: | Artigo Científico |
| Fonte: | FEW-BODY SYSTEMS; v. 58, n. 2 MAR 2017. |
| Citações Web of Science: | 0 |
| Resumo | |
We report a study on the low-energy properties of the elastic s-wave scattering of a neutron (n) in the carbon isotope C-19 near the critical condition for the occurrence of an excited Efimov state in the three-body n-n-C-18 system. For the separation energy of the two halo neutrons in C-20 we use the available experimental data. We also investigate to which extent the universal scaling laws, strictly valid in the zero-range limit, will survive when using finite-range interactions. By allowing to vary the n-C-18 binding energy, a scaling behavior for the real and imaginary parts of the s-wave phase-shift delta(0) is verified, emerging some universal characteristics given by the pole-position of k cot(delta(R)(0)) and effective-range parameters. (AU) | |
| Processo FAPESP: | 16/01816-2 - Transição Dimensional em Sistemas de Poucos Átomos |
| Beneficiário: | Marcelo Takeshi Yamashita |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |