Low energy strong electroweak sector with decoupling
Abstract
We discuss possible symmetries of effective theories describing spinless and spin1 bosons, mainly to concentrate on an intriguing phenomenological possibility: that of a hardly noticeable strong electroweak sector at relatively low energies. Specifically, a model with both vector and axial vector strong interacting bosons may possess a discrete symmetry imposing degeneracy of the two sets of bosons (degenerate BESS model). In such a case its effects at low energies become almost invisible and the model easily passes all low energy precision tests. The reason lies essentially in the fact that the model automatically satisfies decoupling, contrary to models with only vectors. For large mass of the degenerate spinone bosons the model becomes identical at the classical level to the standard model taken in the limit of infinite Higgs boson mass. For these reasons we have thought it worthwhile to fully develop the model, together with its possible generalizations, and to study the expected phenomenology. For instance, just because of its invisibility at low energy, it is conceivable that degenerate BESS has low mass spinone states and gives quite visible signals at existing or forthcoming accelerators.
 Publication:

Physical Review D
 Pub Date:
 May 1996
 DOI:
 10.1103/PhysRevD.53.5201
 arXiv:
 arXiv:hepph/9510431
 Bibcode:
 1996PhRvD..53.5201C
 Keywords:

 12.60.Cn;
 11.15.Ex;
 Extensions of electroweak gauge sector;
 Spontaneous breaking of gauge symmetries;
 High Energy Physics  Phenomenology
 EPrint:
 37 pages, LaTeX, 14 figures (uuencoded)