1996/02/14 by M. Hirsch, H. V. Klapdor‐Kleingrothaus, H. V. Klapdor-Kleingrothaus +1 · 5 citations
Physics and Astronomy · #Boson #Dark Matter and Cosmic Phenomena #Double beta decay #Higgs boson #Mixing (physics) #Neutrino #Neutrino Physics Research #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum mechanics #Right handed #hep-ph
paper · pdf · doi:10.1016/0370-2693(96)00185-2
published as Phys.Lett.B374:7-12,1996 · LaTeX, 9 pages, 3 figures
arxiv created 1996/02/14 · openalex publication_date 1996/05/01 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
Left-right symmetric models provide a natural framework for neutrinoless double beta (\znbb) decay. In the analysis of \znbb decay in left-right symmetric models, however, it is usually assumed that all neutrinos are light. On the other hand, heavy \it right-handed neutrinos appear quite naturally in left-right symmetric models and should therefore not be neglected. Assuming the existence of at least one right-handed heavy neutrino, absence of \znbb decay of 76Ge currently provides the following limits on the mass and mixing angle of right-handed W-bosons: mWR≥ 1.1 TeV and tan(ζ) ≤ 4.7 × 10-3 for a particular value of the effective right-handed neutrino mass, \emnv = 1 TeV, and in the limit of infinitly massive doubly charged Higgs (Δ--). The effects of the inclusion of the Higgs triplet on \znbb decay are also discussed.