U(1)_X矢量类费米子模型（U(1)_XVLFM）中的轻子味破坏衰变l_j→l_iγ
Lepton flavor violating decays $l_j \rightarrow l_iγ$ in the $U(1)_X$VLFM
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中文总结 AI 辅助
本文在U(1)_XVLFM中研究轻子味破坏衰变l_j→l_iγ，发现特定参数下其分支比可达未来实验可探测量级，为探索超出标准模型的新物理提供理论指导与约束。
中文摘要 AI 辅助
在U(1)_X矢量类费米子模型（U(1)_XVLFM）中，标准模型（SM）的规范群被扩展了额外的U(1)_X对称性，该模型引入了矢量类费米子和右旋中微子，为轻子味破坏（LFV）提供了新的来源。本文详细研究了该模型中的轻子味破坏衰变l_j→l_iγ（其中j=τ、μ，i=μ、e，且i≠j），数值结果显示，在某些参数区域，这些过程的分支比可达到未来实验可探测的量级，本工作为探索超出标准模型的新物理提供了重要的理论指导和约束。
英文摘要
In the $U(1)_X$ vector-like fermion model ($U(1)_X$VLFM), the Standard Model(SM) gauge group is extended with an additional $U(1)_X$ symmetry. Vector-like fermions and right-handed neutrinos are introduced, providing new sources of lepton flavor violation(LFV). In this paper, we perform a detailed study of the LFV decays $l_j \to l_i γ$ (with $j = τ, μ$; $i = μ, e$; $i \neq j$) in this model. The numerical results show that, in certain parameter regions, the branching ratios of these processes can become large enough to be probed in future experiments. This work provides important theoretical guidance and constraints for exploring new physics beyond the SM.
