Deconstructed Higgsless Models

Abstract

We consider the possibility of constructing realistic Higgsless models within the context of deconstructed or moose models. We show that the constraints coming from the electro-weak esperimental data are very severe and that it is very difficult to reconcile them with the requirement of improving the unitarity bound of the Higgsless Standard Model. On the other hand, with some fine tuning, a solution is found by delocalizing the standard fermions along the lattice line, that is allowing the fermions to couple to the moose gauge fields.

Comments: 10 pages, 6 figures. Invited paper to the QCD@Work 2005 International Workshop on Quantum Chromodynamics. Conversano (Bari, Italy) June 16-20, 2005