Dirac neutrino mass models with a modular S4 symmetry

2020/07/31 by Xin Wang
Mathematics · Physics and Astronomy · #Astrophysics and Cosmic Phenomena #Dirac (video compression format) #Lepton #MAJORANA #Mathematics #Modular group #Neutrino #Neutrino Physics Research #Neutrino oscillation #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Sterile neutrino #Symmetry (geometry) #hep-ph

paper · pdf · doi:10.1016/j.nuclphysb.2020.115247

34 pages, 7 figures, more discussions and references added, to be published in NPB

arxiv created 2020/11/17 · openalex publication_date 2020/11/20 · arxiv updated 2020/12/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06

Abstract

In this paper, we investigate lepton mass spectra, flavor mixing and CP violation with a modular S4 symmetry under the assumption that neutrinos are Dirac fermions. We find that the Majorana mass term can be forbidden by adjusting the weight of the right-handed neutrino superfields. We study the scenarios where modular forms in the neutrino sector take the lowest non-trivial weight two, while those in the charged-lepton sector vary from two to six. The corrections from renormalization-group running effects to our model have also been discussed in detail. We totally obtain twelve different classes of models and find that ten of them can accommodate current neutrino oscillation data.

Citations

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• Review of Multibody Charm Analyses