6533b836fe1ef96bd12a0bd9
RESEARCH PRODUCT
Dynamical left-right symmetry breaking.
Erhard SchnapkaManfred LindnerJose W.f. ValleEugeni Akhmedovsubject
PhysicsNuclear and High Energy PhysicsParticle physicsGauge bosonSpontaneous symmetry breakingHigh Energy Physics::LatticeHigh Energy Physics::PhenomenologyFísicaFOS: Physical sciencesHiggs sectorStandard ModelHiggs fieldExplicit symmetry breakingHigh Energy Physics - PhenomenologyHigh Energy Physics - Phenomenology (hep-ph)Higgs bosonHigh Energy Physics::ExperimentSymmetry breakingdescription
We study a left--right symmetric model which contains only elementary gauge boson and fermion fields and no scalars. The phenomenologically required symmetry breaking emerges dynamically leading to a composite Higgs sector with a renormalizable effective Lagrangian. We discuss the pattern of symmetry breaking and phenomenological consequences of this scenario. It is shown that a viable top quark mass can be achieved for the ratio of the VEVs of the bi--doublet $\tan\beta\equiv\kappa/\kappa'$ =~ 1.3--4. For a theoretically plausible choice of the parameters the right--handed scale can be as low as $\sim 20 TeV$; in this case one expects several intermediate and low--scale scalars in addition to the \SM Higgs boson. These may lead to observable lepton flavour violation effects including $\mu\to e\gamma$ decay with the rate close to its present experimental upper bound.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1995-09-08 | Physical review. D, Particles and fields |