Quartification On An Orbifold
| dc.creator | Demaria, Alison | |
| dc.creator | McDonald, Kristian L. | |
| dc.date | 2006-10-26 | |
| dc.date | 2007-03-19 | |
| dc.date.accessioned | 2026-07-07T11:01:59Z | |
| dc.date.available | 2026-07-07T11:01:59Z | |
| dc.description | We investigate quartification models in five dimensions, with the fifth dimension forming an $S^1/Z_2\times Z_2'$ orbifold. The orbifold construction is combined with a boundary Higgs sector to break the quartified gauge group directly to a group $H\subset SU(3)^4$ which is operative at the electroweak scale. We consider $H=G_{SM}\otimes SU(2)_\ell$ and $H=G_{SM}$, where $G_{SM}$ is the standard model gauge group, and find that unification occurs only when the remnant leptonic colour symmetry $SU(2)_\ell$ remains unbroken. Furthermore, the demands of a realistic low energy fermion spectrum specify a unique symmetry breaking route for the unifying case of $H=G_{SM}\otimes SU(2)_\ell$. We contrast this with four dimensional quartification models where unification may be achieved via a number of different symmetry breaking routes both with and without the remnant $SU(2)_\ell$ symmetry. The boundary Higgs sector of our model may be decoupled to achieve a Higgsless limit and we show that the electroweak Higgs doublet may be identified as the fifth component of a higher dimensional gauge field. | |
| dc.description | 14 pages, misprint corrected, matches PRD version | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0610346 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0610346 | |
| dc.identifier | Phys.Rev.D75:056006,2007 | |
| dc.identifier | doi:10.1103/PhysRevD.75.056006 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/188116 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Quartification On An Orbifold | |
| dc.type | text |