| Texto completo | |
| Autor(es): |
Dantas, D. M.
;
Da Rocha, Roldao
;
Almeida, C. A. S.
Número total de Autores: 3
|
| Tipo de documento: | Artigo Científico |
| Fonte: | EPL; v. 117, n. 5 MAR 2017. |
| Citações Web of Science: | 4 |
| Resumo | |
We analyse the trapping of eigenspinors of the charge conjugation operator with dual helicity (Elko), in thin and thick string-like models with codimension-2. Elko spinor fields describe mass-dimension-one fermions in four dimensions (and, correspondingly, mass-dimension-two fermions in six dimensions), that represent natural dark-matter prime candidates. This dark spinor has many applications, from particle physics to cosmology. On the other hand, six-dimensional brane-world models have, among other prominent features, the spontaneous confinement of free spin-1 fields and a mechanism that explains the mass hierarchy of fundamental fermions. In this paper, we use scalar couplings in order to confine the zero mode of Elko in six dimensions. More-over, we use the Elko dark-spinor features to propose an exotic coupling in order to remove the complex-valued terms in the massive Kaluza-Klein modes. Hence, we show that six-dimensional models can resolve the main issues of Elko fields confinement presented in five dimensions. Copyright (C) EPLA, 2017 (AU) | |
| Processo FAPESP: | 15/10270-0 - Correspondência fluido / gravidade e aplicações |
| Beneficiário: | Roldão da Rocha |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |