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arXiv 1608.04124hep-ph
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具有规范味对称性的Pati-Salam模型中的轻子味破坏

Lepton-flavour violation in a Pati-Salam model with gauged flavour symmetry

Thorsten Feldmann, Christoph Luhn, Paul Moch

摘要:

结合Pati-Salam(PS)和味对称性在一个可重整的设置,我们设计了一个方案,产生现实的质量的带电轻子。PS规范群伴随表象中的味对称性破缺标量场是产生上、下型夸克和轻子不同味结构的原因。该模型的特点是新的重费米子混合的标准模型夸克和轻子。特别是,第三代费米子的伙伴诱导相当大的来源的味道违反。聚焦于带电轻子部分,我们仔细研究了该模型对轻子味破坏过程的影响,如$μ\rightarrow eγ$,$μ\rightarrow 3e$和μ子在核中的转换。

英文摘要:

Combining Pati-Salam (PS) and flavour symmetries in a renormalisable setup, we devise a scenario which produces realistic masses for the charged leptons. Flavour-symmetry breaking scalar fields in the adjoint representations of the PS gauge group are responsible for generating different flavour structures for up- and down-type quarks as well as for leptons. The model is characterised by new heavy fermions which mix with the Standard Model quarks and leptons. In particular, the partners for the third fermion generation induce sizeable sources of flavour violation. Focusing on the charged-lepton sector, we scrutinise the model with respect to its implications for lepton-flavour violating processes such as $μ\rightarrow eγ$, $μ\rightarrow 3e$ and muon conversion in nuclei.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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