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roman pasechnik

Roman Pasechnik

Senior lecturer

roman pasechnik

Left-Right model with radiative double seesaw mechanism

Author

  • Paulo Areyuna C
  • A. E. Cárcamo Hernández
  • K. N. Vishnudath
  • Sergey Kovalenko
  • Roman Pasechnik
  • Iván Schmidt

Summary, in English

We propose an extended Left-Right symmetric model with an additional global U(1)X symmetry, which collapses to a residual subgroup ℤ2 after spontaneous symmetry breaking. In this model, the light active neutrino masses are generated via a double seesaw mechanism with the Dirac submatrix arising at one loop. In addition, the masses of the charged fermions of the Standard Model (SM) that are lighter than the top quark are generated at one loop level and the residual ℤ2 symmetry ensures the stability of the Dark Matter (DM) candidate of the model. To the best of our knowledge our model has the first implementation of the radiative double seesaw mechanism with the Dirac submatrix generated at one loop level. We show that the model can successfully account for the observed pattern of the SM fermion masses and mixing, and that it is compatible with constraints arising from the muon g-2 anomaly, neutrinoless double beta decay and DM.

Department/s

  • Particle and nuclear physics

Publishing year

2024-12

Language

English

Publication/Series

Journal of High Energy Physics

Volume

2024

Issue

12

Document type

Journal article

Publisher

Springer

Topic

  • Subatomic Physics

Keywords

  • Left-Right Models
  • Models for Dark Matter
  • Neutrino Mixing
  • Sterile or Heavy Neutrinos

Status

Published

ISBN/ISSN/Other

  • ISSN: 1029-8479