Strong coupling unification and extra dimensions
| dc.creator | Delgado, A. | |
| dc.creator | Quiros, M. | |
| dc.date | 1999-03-18 | |
| dc.date | 1999-04-20 | |
| dc.date.accessioned | 2026-07-07T11:35:38Z | |
| dc.date.available | 2026-07-07T11:35:38Z | |
| dc.description | We analyze the implications of electroweak and strong coupling unification in a very general class of models extending the minimal supersymmetric standard model in $4+p$ dimensions $(p\geq 0)$. In general, electroweak precision data require the presence of large extra dimensions (low compactification scales, $M_c$) and/or low unification scale, $M_U$. In particular, the actual experimental value of the strong coupling at $M_Z$ imposes an upper bound on the compactification and unification scales. In four dimensional theories ($M_c\simeq M_U$) with canonical hypercharge assignment we find $M_U\lesssim 10^{9}$ GeV. In theories with extra dimensions ($M_c<M_U$) we find $M_c\lesssim 10^7$ GeV, for a supersymmetric spectrum at the TeV scale. | |
| dc.description | 20 pages, Latex2e, 5 figures, new refs, figure corrected | |
| dc.identifier | https://arxiv.org/abs/hep-ph/9903400 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/9903400 | |
| dc.identifier | Nucl.Phys.B559:235-254,1999 | |
| dc.identifier | doi:10.1016/S0550-3213(99)00440-X | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/198660 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.subject | High Energy Physics - Theory | |
| dc.title | Strong coupling unification and extra dimensions | |
| dc.type | text |