Abstract

We build a renormalizable theory where the inverse seesaw mechanism explains the pattern of SM fermion masses. To the best of our knowledge, our model corresponds to the first implementation of the inverse seesaw mechanism for the charged fermion sector. In our theory, the inverse seesaw mechanism is implemented at the tree and one-loop levels in order to generate the masses for the second and first families of the SM charged fermions, respectively. The third family of SM charged fermions obtain tree-level masses from the Higgs doublets phi _{1} (for the top quark) and phi _{2} (for the bottom quark and tau lepton). The masses of the active light neutrinos are generated from a two-loop level inverse seesaw mechanism. Our model successfully explains the observed SM fermion mass hierarchy, the tiny masses of the active light neutrinos, contains the necessary means for efficient leptogenesis and is in accordance with the constraints resulting from meson oscillations, as well as with the measured values of the observed dark matter relic density and of the muon and electron anomalous magnetic moments.

Highlights

  • Models with extended symmetries, enlarged particle content, and radiative seesaw mechanisms, are frequently used to tackle the limitations of the Standard Model (SM) [1–94]

  • Intending to address the drawbacks as mentioned earlier of the SM, we propose an extension of the Two Higgs Doublet Model (2HDM) with enlarged particle spectrum and symmetries, which allows for a successful implementation of the inverse seesaw mechanism to explain the SM fermion mass hierarchy

  • The implications of the model in the SM fermion mass hierarchy are discussed in Sect. 3, while we study the new contributions to the muon and electron anomalous magnetic moments in Sect

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Summary

Introduction

Models with extended symmetries, enlarged particle content, and radiative seesaw mechanisms, are frequently used to tackle the limitations of the SM [1–94]. Intending to address the drawbacks as mentioned earlier of the SM, we propose an extension of the Two Higgs Doublet Model (2HDM) with enlarged particle spectrum and symmetries, which allows for a successful implementation of the inverse seesaw mechanism to explain the SM fermion mass hierarchy. The charged fermions of the first and the second families receive masses via one-loop and tree-levels inverse seesaw mechanisms, respectively. The implications of the model in the SM fermion mass hierarchy are discussed, while we study the new contributions to the muon and electron anomalous magnetic moments in Sect.

The model
Fermion mass matrices
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Muon and electron anomalous magnetic moments
Meson oscillations
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Dark matter
Leptogenesis
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Conclusions
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