Electroweak Symmetry Breaking and Extra Dimensions
摘要
Electroweak symmetry can be naturally broken by observed quark and gauge fields in various extra-dimensional configurations. No new {\it fundamental} fields are required below the quantum gravitational scale ( 10 - 100 TeV). We examine schemes in which the QCD gauge group alone, in compact extra dimensions, forms a composite Higgs doublet out of (t,b)_L and a linear combination of the Kaluza-Klein modes of t_R. The effective theory at low energies is the Standard Model. The top-quark mass is controlled by the number of active t_R Kaluza-Klein modes below the string scale, and is in agreement with experiment.
引用
@article{arxiv.hep-ph/9912343,
title = {Electroweak Symmetry Breaking and Extra Dimensions},
author = {Hsin-Chia Cheng and Bogdan A. Dobrescu and Christopher T. Hill},
journal= {arXiv preprint arXiv:hep-ph/9912343},
year = {2009}
}
备注
25 pages. More clarifications in section 2 on the equivalence between the orbifold projection and the boundary conditions. Version to be published in Nuclear Physics B