Charged lepton flavor violating decays and (g−2)ea in an extended standard model with singlet and triplet leptoquarks
Abstract
We study the anomalous magnetic moments of charged leptons and their lepton flavor-violating decays in a Standard Model extension containing one SU(2)Lsinglet and one SU(2)L triplet scalar leptoquark. Our results reveal significant correlations among Δae,μ and the decay rates of eb→ eaγ, and h,Z→ eb ea. In particular, the branching ratios Br(eb→ eaγ) and Br(h,Z→ eb ea) exhibit significant correlations. The model cannot simultaneously accommodate sizable values of |Δae|=𝒪(10−13) and |Δaμ|=𝒪(10−10). For |Δaμ|=𝒪(10−10) and Br(μ→ eγ)>10−15, the decay rates are suppressed to Br(τ→ eγ)<𝒪(10−12) and Br(h→ τe)<𝒪(10−6), while the remaining ones can reach the forthcoming experimental sensitivities. Conversely, for |Δae|=𝒪(10−13), one obtains the suppressed decay rates Br(τ→ μγ)<𝒪(10−11) and Br(h→ τμ)<𝒪(10−7).
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BibTeX
@misc{hue2026charged,
title = {{Charged lepton flavor violating decays and $(g-2)_e_a$ in an extended standard model with singlet and triplet leptoquarks}},
author = {L. T. Hue and N. V. Hop and Vo Quoc Phong and N. H. T. Nha},
howpublished = {arXiv},
year = {2026},
month = sep,
doi = {10.48550/arxiv.2609.22013},
eprint = {2609.22013},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2609.22013},
note = {CC0},
}
RIS
TY - UNPB
TI - Charged lepton flavor violating decays and (g−2)_e_a in an extended standard model with singlet and triplet leptoquarks
AU - L. T. Hue
AU - N. V. Hop
AU - Vo Quoc Phong
AU - N. H. T. Nha
PY - 2026
DA - 2026/09/28
PB - arXiv
DO - 10.48550/arxiv.2609.22013
UR - https://arxiv.org/abs/2609.22013
AB - We study the anomalous magnetic moments of charged leptons and their lepton flavor-violating decays in a Standard Model extension containing one SU(2)_Lsinglet and one SU(2)_L triplet scalar leptoquark. Our results reveal significant correlations among Δa_e,μ and the decay rates of e_b→ e_aγ, and h,Z→ e_b e_a. In particular, the branching ratios Br(e_b→ e_aγ) and Br(h,Z→ e_b e_a) exhibit significant correlations. The model cannot simultaneously accommodate sizable values of |Δa_e|=𝒪(10^−13) and |Δa_μ|=𝒪(10^−10). For |Δa_μ|=𝒪(10^−10) and Br(μ→ eγ)>10^−15, the decay rates are suppressed to Br(τ→ eγ)<𝒪(10^−12) and Br(h→ τe)<𝒪(10^−6), while the remaining ones can reach the forthcoming experimental sensitivities. Conversely, for |Δa_e|=𝒪(10^−13), one obtains the suppressed decay rates Br(τ→ μγ)<𝒪(10^−11) and Br(h→ τμ)<𝒪(10^−7).
ER -