Absolute neutrino mass scale and dark matter stability from flavour symmetry

Journal of High Energy Physics

Regular Article - Theoretical Physics

Omar Medina¹  Ricardo Cepedello²  Salvador Centelles Chuliá³ 

[1] AHEP Group, Institut de Física Corpuscular — C.S.I.C./Universitat de València, Parc Científic de Paterna, C/ Catedrático José Beltrán, 2, E-46980, Paterna (Valencia), Spain;Institut für Theoretische Physik und Astrophysik, University of Würzburg, Emil-Hilb-Weg 22, D-97074, Würzburg, Germany;Max-Planck-Institut für Kernphysik, Saupfercheckweg 1, 69117, Heidelberg, Germany;

关键词: Discrete Symmetries;    Flavour Symmetries;    Neutrino Mixing;    Particle Nature of Dark Matter;   

DOI  :  10.1007/JHEP10(2022)080

 received in 2022-07-10, accepted in 2022-10-04,  发布年份 2022

来源: Springer

【 摘 要 】

We explore a simple but extremely predictive extension of the scotogenic model. We promote the scotogenic symmetry ℤ2 to the flavour non-Abelian symmetry Σ(81), which can also automatically protect dark matter stability. In addition, Σ(81) leads to striking predictions in the lepton sector: only Inverted Ordering is realised, the absolute neutrino mass scale is predicted to be mlightest≈ 7.5×10−4 eV and the Majorana phases are correlated in such a way that |mee| ≈ 0.018 eV. The model also leads to a strong correlation between the solar mixing angle θ12 and δCP, which may be falsified by the next generation of neutrino oscillation experiments. The setup is minimal in the sense that no additional symmetries or flavons are required.

【 授权许可】

Unknown   
© The Author(s) 2022