The Ubiquitous Throat
| dc.creator | Hebecker, A. | |
| dc.creator | March-Russell, J. | |
| dc.date | 2006-07-18 | |
| dc.date | 2006-08-25 | |
| dc.date.accessioned | 2026-07-07T11:06:52Z | |
| dc.date.available | 2026-07-07T11:06:52Z | |
| dc.description | We attempt to quantify the widely-held belief that large hierarchies induced by strongly-warped geometries are common in the string theory landscape. To this end, we focus on the arguably best-understood subset of vacua -- type IIB Calabi-Yau orientifolds with non-perturbative Kaehler stabilization and a SUSY-breaking uplift (the KKLT setup). Within this framework, vacua with a realistically small cosmological constant are expected to come from Calabi-Yaus with a large number of 3-cycles. For appropriate choices of flux numbers, many of these 3-cycles can, in general, shrink to produce near-conifold geometries. Thus, a simple statistical analysis in the spirit of Denef and Douglas allows us to estimate the expected number and length of Klebanov-Strassler throats in the given set of vacua. We find that throats capable of explaining the electroweak hierarchy are expected to be present in a large fraction of the landscape vacua while shorter throats are essentially unavoidable in a statistical sense. | |
| dc.description | References added, typos fixed. LaTex, 17 pages, 1 figure | |
| dc.identifier | https://arxiv.org/abs/hep-th/0607120 | |
| dc.identifier | http://arxiv.org/abs/hep-th/0607120 | |
| dc.identifier | Nucl.Phys.B781:99-111,2007 | |
| dc.identifier | doi:10.1016/j.nuclphysb.2007.05.003 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/189663 | |
| dc.subject | High Energy Physics - Theory | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | The Ubiquitous Throat | |
| dc.type | text |