DYNAMICAL LEFT-RIGHT SYMMETRY-BREAKING

Citation
E. Akhmedov et al., DYNAMICAL LEFT-RIGHT SYMMETRY-BREAKING, Physical review. D. Particles and fields, 53(5), 1996, pp. 2752-2780
Citations number
81
Categorie Soggetti
Physics, Particles & Fields
ISSN journal
05562821
Volume
53
Issue
5
Year of publication
1996
Pages
2752 - 2780
Database
ISI
SICI code
0556-2821(1996)53:5<2752:DLS>2.0.ZU;2-7
Abstract
We study a left-right symmetric model which contains only elementary g auge boson and fermion fields and no scalars. The phenomenologically r equired symmetry breaking emerges dynamically leading to a composite H iggs sector with a renormalizable effective Lagrangian. We discuss the pattern of symmetry breaking and phenomenological consequences of thi s scenario. It is shown that a viable top quark mass can be achieved f or the ratio of the VEV's of the bidoublet tan beta = kappa/kappa' sim ilar or equal to 1.3-4. For a theoretically plausible choice of the pa rameters the right-handed scale can be as low as similar to 20 TeV; in this case one expects several intermediate and low-scale scalars in a ddition to the standard model Higgs boson. These may lead to observabl e lepton flavor violation effects including mu --> e gamma decay with the rate close to its present experimental upper bound.