English

Fun with Higgsless Theories

High Energy Physics - Phenomenology 2009-09-11 v2

Abstract

Motivated by recent works on ``Higgsless theories,'' I discuss an SU(2)0×SU(2)N×U(1)SU(2)_0\times SU(2)^{N}\times U(1) gauge theory with arbitrary bifundamental (or custodial SU(2) preserving) symmetry breaking between the gauge subgroups and with ordinary matter transforming only under the U(1) and SU(2)0SU(2)_0. When the couplings, gjg_j, of the other SU(2)s are very large, this reproduces the standard model at the tree level. I calculate the WW and ZZ masses and other electroweak parameters in a perturbative expansion in 1/gj21/g_j^2, and give physical interpretations of the results in a mechanical analog built out of masses and springs. In the mechanical analog, it is clear that even for arbitrary patterns of symmetry breaking, it is not possible (in the perturbative regime) to raise the Higgs mass by a large factor while keeping the SS parameter small.

Keywords

Cite

@article{arxiv.hep-ph/0408067,
  title  = {Fun with Higgsless Theories},
  author = {Howard Georgi},
  journal= {arXiv preprint arXiv:hep-ph/0408067},
  year   = {2009}
}

Comments

20 pages, 5 figures, LaTeX - another reference