"Seesawing" away the hierarchy problem
| dc.creator | Bar-Shalom, Shaouly | |
| dc.creator | Atwood, David | |
| dc.creator | Soni, Amarjit | |
| dc.date | 2005-11-23 | |
| dc.date.accessioned | 2026-07-07T06:50:07Z | |
| dc.date.available | 2026-07-07T06:50:07Z | |
| dc.description | We describe a model for the scalar sector where all interactions occur either at an ultra-high scale L_U ~ 10^16 - 10^19 GeV or at an intermediate scale L_I=10^9 - 10^11 GeV. The interaction of physics on these two scales results in an SU(2) Higgs condensate at the electroweak (EW) scale, L_EW, through a seesaw-like Higgs mechanism, L_EW ~ (L_I)^2/L_U, while the breaking of the SM SU(2)XU(1) gauge symmetry occurs at the intermediate scale L_I. The EW scale is, therefore, not fundamental but is naturally generated in terms of ultra-high energy phenomena and so the hierarchy problem is alleviated. We show that our ``seesaw-Higgs'' model predicts the existence of sub-eV neutrino masses which are generated through a ``two-step'' seesaw mechanism in terms of the same two ultra-high scales: m_nu ~ (L_I)^4/(L_U)^3 ~ (L_EW)^2/L_U. We also show that our seesaw Higgs model can be naturally embedded in theories with tiny extra dimensions of size R ~ 1/L_U ~ 10^{-16} fm, where the seesaw induced EW scale arises from a violation of a symmetry at a distant brane if there are 7 tiny extra dimensions. | |
| dc.description | 3 pages, talk given at the International Europhysics Conference on High Energy Physics, July 21st - 27th 2005, Lisboa, Portugal | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0511281 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0511281 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/104587 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | "Seesawing" away the hierarchy problem | |
| dc.type | text |