Antusch, Stefan; Greljo, Admir; Stefanek, Ben A; Thomsen, Anders Eller (2024). U(2) Is Right for Leptons and Left for Quarks. Physical review letters, 132(151802) American Physical Society 10.1103/PhysRevLett.132.151802
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We posit that the distinct patterns observed in fermion masses and mixings are due to a minimally broken U(2)_{q+e} flavor symmetry acting on left-handed quarks and right-handed charged leptons, giving rise to an accidental U(2)^{5} symmetry at the renormalizable level without imposing selection rules on the Weinberg operator. We show that the symmetry can be consistently gauged by explicit examples and comment on realizations in SU(5) unification. Via a model-independent analysis of a standard model viewed as an effective field theory, we find that selection rules due to U(2)_{q+e} enhance the importance of charged lepton flavor violation as a probe, where significant experimental progress is expected in the near future.
Item Type: |
Journal Article (Original Article) |
|---|---|
Division/Institute: |
08 Faculty of Science > Institute of Theoretical Physics 10 Strategic Research Centers > Albert Einstein Center for Fundamental Physics (AEC) |
UniBE Contributor: |
Thomsen, Anders Eller |
Subjects: |
500 Science > 530 Physics |
ISSN: |
1079-7114 |
Publisher: |
American Physical Society |
Language: |
English |
Submitter: |
Pubmed Import |
Date Deposited: |
01 May 2024 11:57 |
Last Modified: |
02 May 2024 15:25 |
Publisher DOI: |
10.1103/PhysRevLett.132.151802 |
PubMed ID: |
38682977 |
BORIS DOI: |
10.48350/196384 |
URI: |
https://boris.unibe.ch/id/eprint/196384 |
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