A new flipped SU(3)C ⊗ SU(4)L ⊗U(1)X model without exotic electric charges is proposed. All the quark families are arranged in the same representation while lepton generations are in different representations leading to a tree level FCNC. Moreover, it is shown that the cancellation of the triangle gauge anomalies requires new additional leptons a 10-plet and a quadruplet. All fermion masses have been also discussed. Furthermore, using the most recent experimental data of the branching ratios of μ→eee¯ and μ→eγ rare decay modes, stringent bounds on the heavy neutral bosons masses and the muon-electron mixing matrix element are obtained.

中文翻译：

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全新无异常翻转 341 模型

一个新的翻转苏(3)C ⊗ 小号ü(4)大号 ⊗ü(1)X提出了没有外来电荷的模型。所有夸克族都以相同的表示形式排列，而轻子代则以不同的表示形式排列，从而形成树级 FCNC。此外，它表明消除三角形规范异常需要新的附加轻子一个 10 重和四重。还讨论了所有费米子质量。此外，使用最新的支化率实验数据μ→eee¯和μ→eγ获得了罕见的衰变模式、重中性玻色子质量的严格界限和μ电子混合矩阵元素。