Hints of Dynamical Symmetry Breaking?

Details Hints of Dynamical Symmetry Breaking? Hints of Dynamical Symmetry Breaking?

1996-06-14

arxiv.org/abs/hep-ph/9606338v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages, 2 figures, talk given at the Inauguration Conference of the Asia Pacific Center for Theoretical Physics, Seoul, June

Scientific paper

There is current interest in a possible new massive gauge boson $X$ which mixes slightly with the $Z$ boson and accounts for certain anomalies in the LEP data. We show why constraints on models in which the $X$ boson does not couple to the first two families suggest dynamical electroweak symmetry breaking. The associated TeV mass fermions make up a fourth family. Constraints on the effects of the fourth left-handed neutrino also suggest a dynamical origin for its Majorana mass. We finally comment on related implications for the origin of quark masses.

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