Interpretation of Lepton Flavor Violation

Abstract

The observation of a charged-lepton flavor violating process would be a definite sign for physics beyond the Standard Model, but would actually only prove that one particular linear combination of lepton numbers is violated. We categorize lepton-flavor-violating processes by their quantum numbers and show how their discovery can be interpreted model independently, studying in particular which processes are required to establish that the entire flavor group is broken. We also comment on total lepton number, seeing as lepton number violation practically implies lepton flavor violation as well.

6 pages, added references and clarifications

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Cited by in corpus (7)

• Inclusive Nucleon Decay Searches as a Frontier of Baryon Number Violation
• Lepton Flavor Violation with Displaced Vertices
• Unified resolution of the $R(D)$ and $R(D^{\ast })$ anomalies and the lepton flavor violating decay $h\to \mu \tau$
• ${\mathbf{\mu }}^{-}$- ${\mathbf{e}}^{+}$ Conversion from Short-Range Operators
• Lepton flavor violation by two units
• Singlet Fermion Assisted Dominant Seesaw with Lepton Flavor and Number Violations and Leptogenesis
• Charged Lepton Flavor Violation at the High-Energy Colliders: Neutrino Mass Relevant Particles