| Journal: | Revista mexicana de física |
| Database: | PERIÓDICA |
| System number: | 000361013 |
| ISSN: | 0035-001X |
| Authors: | Garrido, N1 Hernández, H.H1 |
| Institutions: | 1Universidad Autónoma de Chihuahua, Facultad de Ingeniería, Chihuahua. México |
| Year: | 2012 |
| Season: | Ago |
| Volumen: | 58 |
| Number: | 4 |
| Pages: | 324-327 |
| Country: | México |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Analítico, teórico |
| English abstract | We put to the test an effective three-dimensional electrostatic potential, obtained effectively by considering an electrostatic source inside a (5+p)-dimensional braneworld scenario with p compact and one infinite spacial extra dimensions in the RS II-p model, for p = 1 and p = 2. This potential is regular at the source and matches the standard Coulomb potential outside a neighborhood. We use variational and perturbative approximation methods to calculate corrections to the ground energy of the Helium atom modified by this potential, by making use of a 6 and 39-parameter trial wave function of Hylleraas type for the ground state. These corrections to the ground-state energy are compared with experimental data for Helium atom in order to set bounds for the extra dimensions length scale. We find that these bounds are less restrictive than the ones obtained by Morales et. al. through a calculation using the Lamb shift in Hydrogen |
| Disciplines: | Física y astronomía |
| Keyword: | Física atómica y molecular, Modelo Brane-World, Fenomenología, Helio, Metodo perturbativo, Métodos variacionales |
| Keyword: | Physics and astronomy, Atomic and molecular physics, Brane world, Phenomenology, Helium, Perturbative method, Variational methods |
| Full text: | Texto completo (Ver PDF) |
