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Explaining lepton-flavor non-universality and self-interacting dark matter with Lμ-Lτ.
- Source :
-
European Physical Journal C -- Particles & Fields . May2022, Vol. 82 Issue 5, p1-12. 12p. - Publication Year :
- 2022
-
Abstract
- Experimental hints for lepton-flavor universality violation in the muon's magnetic moment as well as neutral- and charged-current B-meson decays require Standard-Model extensions by particles such as leptoquarks that generically lead to unacceptably fast rates of charged lepton flavor violation and proton decay. We propose a model based on a gauged U (1) L μ - L τ that eliminates all these unwanted decays by symmetry rather than finetuning and efficiently explains (g - 2) μ , R K (∗) , R D (∗) , and neutrino masses. The U (1) L μ - L τ furthermore acts as a stabilizing symmetry for dark matter and the light Z ′ gauge boson mediates velocity-dependent dark-matter self-interactions that resolve the small-scale structure problems. Lastly, even the Hubble tension can be ameliorated via the light Z ′ contribution to the relativistic degrees of freedom. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 14346044
- Volume :
- 82
- Issue :
- 5
- Database :
- Academic Search Index
- Journal :
- European Physical Journal C -- Particles & Fields
- Publication Type :
- Academic Journal
- Accession number :
- 157532391
- Full Text :
- https://doi.org/10.1140/epjc/s10052-022-10437-3