Dynamical left-right symmetry breaking

Eugeni Akhmedov, Manfred Lindner, Erhard Schnapka, and Jose W. F. Valle
Phys. Rev. D 53, 2752 – Published 1 March 1996
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Abstract

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 VEV’s of the bidoublet tanβ≡κ/κ≃1.3–4. For a theoretically plausible choice of the parameters the right-handed scale can be as low as ∼20 TeV; in this case one expects several intermediate and low-scale scalars in addition to the standard model Higgs boson. These may lead to observable lepton flavor violation effects including μ→eγ decay with the rate close to its present experimental upper bound. © 1996 The American Physical Society.

  • Received 11 September 1995

DOI:https://doi.org/10.1103/PhysRevD.53.2752

©1996 American Physical Society

Authors & Affiliations

Eugeni Akhmedov, Manfred Lindner, Erhard Schnapka, and Jose W. F. Valle

  • International Centre for Theoretical Physics, Strada Costiera 11, I-34100 Trieste, Italy
  • Institut für Theoretische Physik, Technische Universität München, James-Franck-Strasse, D-85748 Garching, Germany
  • Instituto de Física Corpuscular–C.S.I.C. Departament de Física Teòrica, Universitat de València, 46100 Burjassot, València, Spain

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Vol. 53, Iss. 5 — 1 March 1996

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