An Extension of the Electroweak Model with Decoupling at Low Energy

Abstract

We present a renormalizable model of electroweak interactions containing an extra $SU(2{)}_L^{\prime }\otimes SU(2{)}_R^{\prime }$ symmetry. The masses of the corresponding gauge bosons and of the associated Higgs particles can be made heavy by tuning a convenient vacuum expectation value. According to the way in which the heavy mass limit is taken we obtain a previously considered non-linear model (degenerate BESS) which, in this limit, decouples giving rise to the Higgsless Standard Model (SM). Otherwise we can get a model which decouples giving the full SM. In this paper we argue that in the second limit the decoupling holds true also at the level of radiative corrections. Therefore the model discussed here is not distinguishable from the SM at low energy. Of course the two models differ deeply at higher energies.

13+2 pages, LaTex

References in corpus (2)

• Degenerate BESS Model: The possibility of a low energy strong electroweak sector
• Limits on Non-Commuting Extended Technicolor

Cited by in corpus (11)

• Enhanced Global Symmetries and The Chiral Phase Transition
• Enhanced Global Symmetry Constraints on epsilon Terms
• Charged di-boson production at the LHC in a 4-site model with a composite Higgs boson
• New vector bosons in the electroweak sector: a renormalizable model with decoupling
• A linear moose model with pairs of degenerate gauge boson triplets
• Manifestation of a strong electroweak sector with decoupling at hadronic colliders
• Custodial Vector Model
• Spin-1 resonances
• The scalar sector in an extended electroweak gauge symmetry model
• A screening mechanism for extra W and Z gauge bosons
• The Linear BESS Model at the LHC