Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2006-06-08
Phys.Rev.Lett. 97 (2006) 121803
Physics
High Energy Physics
High Energy Physics - Phenomenology
Version accepted for publication in PRL. Introduction and conclusion extended
Scientific paper
10.1103/PhysRevLett.97.121803
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.
Hirn Johannes
Sanz Veronica
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