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Left-Right model with radiative double seesaw mechanism

Areyuna C, Paulo ; Cárcamo Hernández, A. E. ; Vishnudath, K. N. ; Kovalenko, Sergey ; Pasechnik, Roman LU and Schmidt, Iván (2024) In Journal of High Energy Physics 2024(12).
Abstract

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.... (More)

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.

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author
; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Left-Right Models, Models for Dark Matter, Neutrino Mixing, Sterile or Heavy Neutrinos
in
Journal of High Energy Physics
volume
2024
issue
12
article number
162
publisher
Springer
external identifiers
  • scopus:105004725682
ISSN
1029-8479
DOI
10.1007/JHEP12(2024)162
language
English
LU publication?
yes
id
b43e3e8f-f94d-463a-81df-4b8d4811808a
date added to LUP
2025-09-26 13:34:10
date last changed
2025-10-14 10:56:34
@article{b43e3e8f-f94d-463a-81df-4b8d4811808a,
  abstract     = {{<p>We propose an extended Left-Right symmetric model with an additional global U(1)<sub>X</sub> symmetry, which collapses to a residual subgroup ℤ<sub>2</sub> 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 ℤ<sub>2</sub> 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.</p>}},
  author       = {{Areyuna C, Paulo and Cárcamo Hernández, A. E. and Vishnudath, K. N. and Kovalenko, Sergey and Pasechnik, Roman and Schmidt, Iván}},
  issn         = {{1029-8479}},
  keywords     = {{Left-Right Models; Models for Dark Matter; Neutrino Mixing; Sterile or Heavy Neutrinos}},
  language     = {{eng}},
  number       = {{12}},
  publisher    = {{Springer}},
  series       = {{Journal of High Energy Physics}},
  title        = {{Left-Right model with radiative double seesaw mechanism}},
  url          = {{http://dx.doi.org/10.1007/JHEP12(2024)162}},
  doi          = {{10.1007/JHEP12(2024)162}},
  volume       = {{2024}},
  year         = {{2024}},
}