Selection rules for charged lepton flavour violating processes from residual flavour groups

Fuente: arXiv
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Main Authors: Calibbi, Lorenzo, Hagedorn, Claudia, Schmidt, Michael A., Vandeleur, James
Format: Preprint
Published: 2025
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author Calibbi, Lorenzo
Hagedorn, Claudia
Schmidt, Michael A.
Vandeleur, James
author_facet Calibbi, Lorenzo
Hagedorn, Claudia
Schmidt, Michael A.
Vandeleur, James
contents We systematically investigate the possible phenomenological impact of residual flavour groups in the charged lepton sector. We consider all possible flavour charge assignments for abelian residual symmetries up to Z8. The allowed flavour structures of operators in Standard Model Effective Field Theory (up to dimension six) lead to distinctive and observable patterns of charged lepton flavour violating processes. We illustrate the relevance of such selection rules displaying the current bounds on and the future sensitivities to the new physics scale. These results demonstrate, in particular, the importance and discriminating power of searches for lepton flavour violating tau lepton decays and muonium to antimuonium conversion.
format Preprint
id arxiv_https___arxiv_org_abs_2505_24350
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Selection rules for charged lepton flavour violating processes from residual flavour groups
Calibbi, Lorenzo
Hagedorn, Claudia
Schmidt, Michael A.
Vandeleur, James
High Energy Physics - Phenomenology
High Energy Physics - Experiment
We systematically investigate the possible phenomenological impact of residual flavour groups in the charged lepton sector. We consider all possible flavour charge assignments for abelian residual symmetries up to Z8. The allowed flavour structures of operators in Standard Model Effective Field Theory (up to dimension six) lead to distinctive and observable patterns of charged lepton flavour violating processes. We illustrate the relevance of such selection rules displaying the current bounds on and the future sensitivities to the new physics scale. These results demonstrate, in particular, the importance and discriminating power of searches for lepton flavour violating tau lepton decays and muonium to antimuonium conversion.
title Selection rules for charged lepton flavour violating processes from residual flavour groups
topic High Energy Physics - Phenomenology
High Energy Physics - Experiment
url https://arxiv.org/abs/2505.24350