Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1996-07-10
Phys.Lett. B388 (1996) 112-120
Physics
High Energy Physics
High Energy Physics - Phenomenology
13+2 pages, LaTex
Scientific paper
10.1016/0370-2693(96)01129-X
We present a renormalizable model of electroweak interactions containing an extra $SU(2)'_L\otimes SU(2)'_R$ 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.
Casalbuoni Roberto
Curtis Stefania de
Dominici Daniele
Grazzini Massimiliano
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