2006/06/30 by Johannes Hirn, Verónica Sanz, Veronica Sanz · 3 citations
Earth and Planetary Sciences · Physics and Astronomy · #Photorefractive and Nonlinear Optics #Seismic Imaging and Inversion Techniques #Topological Materials and Phenomena #hep-ph
paper · pdf · doi:10.1103/physrevlett.97.121803
published as Phys.Rev.Lett. 97 (2006) 121803 · Version accepted for publication in PRL. Introduction and conclusion extended
arxiv created 2006/08/24 · openalex publication_date 2006/09/22 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
We present a new class of 5D models, Holographic Technicolor, which fulfills the basic requirements for a candidate of comprehensible 4D strong dynamics at the electroweak scale. It is the first Technicolor-like model able to provide a vanishing or even negative tree-level S parameter, avoiding any no-go theorem on its sign. The model is described in the large-N regime. S is therefore computable: possible corrections coming from boundary terms follow the 1/N suppression, and generation of fermion masses and the S parameter issue do split up. We investigate the model's 4D dual, probably walking Technicolor-like with a large anomalous dimension.