具有单态轻夸克的3-3-1模型中的轻子味违反衰变
LFV decays in a 3-3-1 model with singlet leptoquarks
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中文总结 AI 辅助
研究基于含单态轻夸克的3-3-1模型，扩展其唯象分析涵盖希格斯玻色子和Z玻色子的轻子味违反衰变。发现衰变分支比与带电轻子味违反辐射衰变有线性关联，且模型在带电轻子反常磁矩间有互补作用。
中文摘要 AI 辅助
受最近对补充单态标量轻夸克的3-3-1模型的研究启发，该模型在当前实验限制内成功解释了μ子反常磁矩和衰变μ→eγ，我们扩展了此框架的唯象分析，以包括标准模型样希格斯玻色子和Z玻色子的轻子味违反衰变。有趣的是，这些衰变的分支比与相应的带电轻子味违反辐射衰变呈现近乎线性的相关性，即Br(h,Z→eb±ea∓)∝Br(eb→eaγ)。此外，该模型在带电轻子反常磁矩之间展现出互补的相互作用。
英文摘要
Motivated by a recent study of the 3-3-1 model supplemented with a singlet scalar leptoquark, which successfully explains the muon anomalous magnetic moment and the decay $μ\to eγ$ within current experimental constraints, we extend the phenomenological analysis of this framework to include the lepton-flavor-violating decays of the Standard Model-like Higgs and the $Z$ boson. An interesting feature is that the branching ratios of these decays exhibit a nearly linear correlation with the corresponding charged lepton flavor-violating radiative decays, namely $\mathrm{Br}(h,Z\to e_b^\pm e_a^\mp)\propto\mathrm{Br}(e_b\to e_aγ)$. Furthermore, the model exhibits a complementary interplay between the charged-lepton anomalous magnetic moments: parameter regions with $|Δa_μ|\geq10^{-11}$ favor $\mathrm{Br}(h,Z\toτ^\pmμ^\mp)$ reaching their current experimental upper limits while keeping $|Δa_e|$ negligible, whereas regions with $10^{-14}\leq|Δa_e|\leq 8\times10^{-13}$ instead allow $\mathrm{Br}(h,Z\toτ^\pm e^\mp)$ to approach the present experimental sensitivities but simultaneously suppress $|Δa_μ|$ to the level of $\mathcal{O}(10^{-16})$.
