On Extended Electroweak Symmetries

Details On Extended Electroweak Symmetries On Extended Electroweak Symmetries

2004-04-27

arxiv.org/abs/hep-ph/0404238v1

Int.J.Mod.Phys. A20 (2005) 1295-1302

Physics

High Energy Physics

High Energy Physics - Phenomenology

1+8 pages of latex with ws-procs9x6.cls; talk presented at Coral Gables Conference 2003

Scientific paper

10.1142/S0217751X05024195

We discuss extensions of the Standard Model through extending the electroweak gauge symmetry. An extended electroweak symmetry requires a list of extra fermionic and scalar states. The former is necessary to maintain cancellation of gauge anomalies, and largely fixed by the symmetry embedding itself. The latter is usually considered quite arbitrary, so long as a vacuum structure admitting the symmetry breaking is allowed. Anomaly cancellation may be used to link the three families of quarks and leptons together, given a perspective on flavor physics. It is illustrated lately that the kind of models may also have the so-called little Higgs mechanism incorporated. This more or less fixes the scalar sector and take care of the hierarchy problem, making such models of extended electroweak symmetries quite appealing candidates as TeV scale effective field theories.

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