Neutrinos in a left-right model with a horizontal symmetry

2005/10/20 by Ken Kiers, Michael Assis, David Simons +2
Mathematics · Physics and Astronomy · #Astrophysics and Cosmic Phenomena #CP violation #Double beta decay #Geometry #Leptogenesis #Lepton #Mathematics #Neutrino #Neutrino Physics Research #Neutrino oscillation #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Right handed #Seesaw mechanism #Symmetry (geometry) #Symmetry breaking #hep-ph

paper · pdf · doi:10.1103/physrevd.73.033009

published as Phys.Rev. D73 (2006) 033009 · 26 pages, 4 figures

arxiv created 2005/10/20 · openalex publication_date 2006/02/27 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We analyze the lepton sector of a left-right model based on the gauge group SU(2)_L\ifmmode×\else\texttimes\fiSU(2)_R\ifmmode×\else\texttimes\fiU(1), concentrating mainly on neutrino properties. Using the seesaw mechanism and a horizontal symmetry, we keep the right-handed symmetry breaking scale relatively low, while simultaneously satisfying phenomenological constraints on the light neutrino masses. We take the right-handed scale to be of order 10's of TeV and perform a full numerical analysis of the model's parameter space, subject to experimental constraints on neutrino masses and mixings. The numerical procedure yields results for the right-handed neutrino masses and mixings and the various CP-violating phases. We also discuss phenomenological applications of the model to neutrinoless double beta decay, lepton-flavor-violating decays (including decays such as \ensuremathτ\ensuremath→3\ensuremathμ) and leptogenesis.

Citations

• Leptogenesis through direct inflaton decay to light particles
• Higgs sector of the left-right model with explicitCPviolation
• EVIDENCE FOR NEUTRINOLESS DOUBLE BETA DECAY
• Consequences of triplet seesaw for leptogenesis
• Are the New Physics Contributions from the Left-Right Symmetric Model Important for the Indirect CP Violation in the Neutral B Mesons?
• Single production of doubly charged Higgs bosons at hadron colliders
• Status of global fits to neutrino oscillations
• Neutrino oscillations and signals in β and 0ν2β experiments
• Rsymmetry in the minimal supersymmetric standard model and beyond with several consequences
• Lepton number as the fourth "color"
• Prospects for the search for a doubly charged Higgs in the left–right symmetric model with ATLAS
• Neutrinoless double beta decay and future neutrino oscillation precision experiments
• Big Bang Nucleosynthesis (in "The Review of Particle Properties" 2004)